Auteurs : Sango Thomas; Stoclet Gregory; Joly Nicolas; Marin Adeline; Yona Arnaud-M Cheumani; Duchatel-Crépy Lucie; Ndikontar Maurice Kor; Lefebvre Jean–Marc European Polymer Journal, 112, pp. 466 - 4761ISSN: 0014-3057 @article{SANGO2019466, title = {Water–soluble extracts from banana pseudo–stem as functional additives for polylactic acid: Thermal and mechanical investigations}, author = {Thomas Sango and Gregory Stoclet and Nicolas Joly and Adeline Marin and Arnaud-M Cheumani Yona and Lucie Duchatel-Crépy and Maurice Kor Ndikontar and Jean–Marc Lefebvre}, url = {http://www.sciencedirect.com/science/article/pii/S0014305718318718}, doi = {https://doi.org/10.1016/j.eurpolymj.2019.01.009}, issn = {0014-3057}, year = {2019}, date = {2019-01-01}, journal = {European Polymer Journal}, volume = {112}, pages = {466 - 476}, abstract = {Water–Soluble Extracts (WSE) were obtained from Banana Pseudo–stems (BPS) using a simple and robust deconstruction procedure. WSE were characterized by FTIR, WAXS, TGA–DTG analysis. With the objective of developing fully bio–based polymer formulations, WSE fillers were blended to Poly Lactic Acid (PLA) using a solution blending, casting and thermocompression process. Thermal and mechanical properties were investigated by Differential Scanning Calorimetry (DSC), Dynamic Mechanical Analysis (DMA) and uniaxial tensile tests on neat–PLA (n–PLA) and PLA/WSE blends at various filler contents. Thermal DSC investigations established that WSE act as a plasticizer on PLA. This was further confirmed by DMA by the shift of the loss factor (tan δ) peak maximum towards lower temperatures. WSE also significantly impacted the thermally induced crystallization of PLA and the nucleating power of WSE was assessed by isothermal and non–isothermal studies. WSE had a detrimental effect on PLA brittleness and a slightly positive influence on its stiffness in the glassy state, whereas the drawability remained fairly acceptable when PLA–based materials where drawn at 75 °C above Tg. Moreover, WSE induced an earlier strain–hardening of the composite films as compared to neat PLA. These results underline the valorization potential of such agricultural by–products for sustainable polymer applications in the packaging industry.}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } Water–Soluble Extracts (WSE) were obtained from Banana Pseudo–stems (BPS) using a simple and robust deconstruction procedure. WSE were characterized by FTIR, WAXS, TGA–DTG analysis. With the objective of developing fully bio–based polymer formulations, WSE fillers were blended to Poly Lactic Acid (PLA) using a solution blending, casting and thermocompression process. Thermal and mechanical properties were investigated by Differential Scanning Calorimetry (DSC), Dynamic Mechanical Analysis (DMA) and uniaxial tensile tests on neat–PLA (n–PLA) and PLA/WSE blends at various filler contents. Thermal DSC investigations established that WSE act as a plasticizer on PLA. This was further confirmed by DMA by the shift of the loss factor (tan δ) peak maximum towards lower temperatures. WSE also significantly impacted the thermally induced crystallization of PLA and the nucleating power of WSE was assessed by isothermal and non–isothermal studies. WSE had a detrimental effect on PLA brittleness and a slightly positive influence on its stiffness in the glassy state, whereas the drawability remained fairly acceptable when PLA–based materials where drawn at 75 °C above Tg. Moreover, WSE induced an earlier strain–hardening of the composite films as compared to neat PLA. These results underline the valorization potential of such agricultural by–products for sustainable polymer applications in the packaging industry. |
Auteurs : Zalewski Laurent; Franquet Erwin; Gibout Stéphane; Tittelein Pierre; Defer Didier Applied Sciences, 9(6), pp. 11041 @article{zalewski_efficient_2019, title = {Efficient Characterization of Macroscopic Composite Cement Mortars with Various Contents of Phase Change Material}, author = {Laurent Zalewski and Erwin Franquet and Stéphane Gibout and Pierre Tittelein and Didier Defer}, url = {https://www.mdpi.com/2076-3417/9/6/1104}, doi = {10.3390/app9061104}, year = {2019}, date = {2019-01-01}, urldate = {2019-03-19}, journal = {Applied Sciences}, volume = {9}, number = {6}, pages = {1104}, abstract = {The determination of both the thermal and thermodynamical properties of a composite material containing phase change material is done thanks to an inverse method, which combines experimental measurements and numerical computations. Given first an in-house experiment, which allows us to test samples at a macroscopic scale (i.e., close to the real conditions) and to set various types of thermal stresses, and secondly the simulation of the corresponding thermal behavior, relying on an accurate thermodynamical modeling and taking into account the real operating parameters (e.g., thermal contact resistances and non-symmetric heat fluxes on each side), it is possible to characterize the solid and liquid thermal conductivities and heat capacities, as well as the temperature range associated with a non-isothermal phase transition and the associated latent heat. The specificity of the present approach is to allow, in a single step, a characterization of all the involved thermo-physical parameters that are usually required in simulation tools (e.g., EnergyPlus…). Moreover, the hitherto studies dealing with repeatability and uncertainties of the enthalpy characterization are generally very scant and not encountered very often or only with qualitative assessments. This is a clear caveat, especially when considering any system design. Therefore, for the first time ever, the present paper pays a special attention to the repeatability of the identification method and studies the scedasticity of the results, that is to say the deviations of the determined enthalpy curves, not only from a qualitative point of view but also by proposing quantitative arguments. Finally, the results are very promising since the agreement between all trials is excellent, the maximum error for all parameters being lower than 4%. This is far below the current quality thresholds admitted when characterizing the enthalpy of a phase change material.}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } The determination of both the thermal and thermodynamical properties of a composite material containing phase change material is done thanks to an inverse method, which combines experimental measurements and numerical computations. Given first an in-house experiment, which allows us to test samples at a macroscopic scale (i.e., close to the real conditions) and to set various types of thermal stresses, and secondly the simulation of the corresponding thermal behavior, relying on an accurate thermodynamical modeling and taking into account the real operating parameters (e.g., thermal contact resistances and non-symmetric heat fluxes on each side), it is possible to characterize the solid and liquid thermal conductivities and heat capacities, as well as the temperature range associated with a non-isothermal phase transition and the associated latent heat. The specificity of the present approach is to allow, in a single step, a characterization of all the involved thermo-physical parameters that are usually required in simulation tools (e.g., EnergyPlus…). Moreover, the hitherto studies dealing with repeatability and uncertainties of the enthalpy characterization are generally very scant and not encountered very often or only with qualitative assessments. This is a clear caveat, especially when considering any system design. Therefore, for the first time ever, the present paper pays a special attention to the repeatability of the identification method and studies the scedasticity of the results, that is to say the deviations of the determined enthalpy curves, not only from a qualitative point of view but also by proposing quantitative arguments. Finally, the results are very promising since the agreement between all trials is excellent, the maximum error for all parameters being lower than 4%. This is far below the current quality thresholds admitted when characterizing the enthalpy of a phase change material. |
Auteurs : Yehya Alissar; Naji Hassane; Zalewski Laurent Applied Thermal Engineering, ISSN: 1359-4311 @article{yehya_experimental_2019, title = {Experimental and numerical characterization of an impure phase change material using a thermal lattice Boltzmann method}, author = {Alissar Yehya and Hassane Naji and Laurent Zalewski}, url = {http://www.sciencedirect.com/science/article/pii/S1359431118357569}, doi = {10.1016/j.applthermaleng.2019.03.026}, issn = {1359-4311}, year = {2019}, date = {2019-01-01}, urldate = {2019-03-14}, journal = {Applied Thermal Engineering}, abstract = {Of the phase change materials (PCMs) that regulate ambient temperature while reducing energy consumption, Octadecane is a good candidate because of its transparency properties and its adequate melting temperature. This study aims to characterize, through an approach combining numerical simulation and experiment, the behavior and thermo-physical properties of n-Octadecane. The approach takes into consideration the natural convection and the use of PCM's experimentally-obtained enthalpy-temperature curve that includes the supercooling and soluble impurities effects. The model uses the thermal lattice Boltzmann method based both on a partial bounce-back and an enthalpy formulation while including the experimental relationships. The numerical and experimental results exhibit good agreement. The approach adopted allows to highlight the behavior of the PCM to better characterize its thermo-physical properties.}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } Of the phase change materials (PCMs) that regulate ambient temperature while reducing energy consumption, Octadecane is a good candidate because of its transparency properties and its adequate melting temperature. This study aims to characterize, through an approach combining numerical simulation and experiment, the behavior and thermo-physical properties of n-Octadecane. The approach takes into consideration the natural convection and the use of PCM's experimentally-obtained enthalpy-temperature curve that includes the supercooling and soluble impurities effects. The model uses the thermal lattice Boltzmann method based both on a partial bounce-back and an enthalpy formulation while including the experimental relationships. The numerical and experimental results exhibit good agreement. The approach adopted allows to highlight the behavior of the PCM to better characterize its thermo-physical properties. |
Auteurs : Cherif Yassine; SASSINE Emilio; Zalewski Laurent; SOUIDI Kaies; Lassue Stephane Journal of Thermal Science and Engineering Applications, pp. 1–341ISSN: 1948-5085 @article{cherif_experimental_2019, title = {Experimental analysis of natural convection and flow visualization in an asymmetrically heated open vertical channel}, author = {Yassine Cherif and Emilio SASSINE and Laurent Zalewski and Kaies SOUIDI and Stephane Lassue}, url = {http://dx.doi.org/10.1115/1.4043533}, doi = {10.1115/1.4043533}, issn = {1948-5085}, year = {2019}, date = {2019-01-01}, urldate = {2019-04-23}, journal = {Journal of Thermal Science and Engineering Applications}, pages = {1--34}, abstract = {An experimental device was designed to perform the thermal and dynamic study of natural convection airflow in an open vertical channel. The two side walls of the vertical channel are made of Plexiglas allowing the visualization of the flow via the PIV method. For the two other vertical walls, one is heated at a constant temperature, and the other is insulated with a 9 cm thick polystyrene insulation. The dynamic characterization of convection is carried out by non-intrusive measurements (Particle Image Velocimetry (PIV)) and thermal phenomena are analyzed using non-intrusive heat flux instrumentation (Simultaneous temperature and velocity measurements have been carried out across the channel at different elevations). Moreover, this study deals with the influence of the Rayleigh number on the measured vertical velocity profiles as well as the thermal flux densities recorded along the heated wall. To do this, different values of the modified Rayleigh numbers were considered in the interval with the channel aspect ratio respectively of A= 5; and A = 12.5. The numbers of Nusselt obtained have been compared successfully with those of the literature. The effects of Rayleigh number and aspect ratio, on the velocity profiles, the convective and radiation heat transfer are examined in detail.}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } An experimental device was designed to perform the thermal and dynamic study of natural convection airflow in an open vertical channel. The two side walls of the vertical channel are made of Plexiglas allowing the visualization of the flow via the PIV method. For the two other vertical walls, one is heated at a constant temperature, and the other is insulated with a 9 cm thick polystyrene insulation. The dynamic characterization of convection is carried out by non-intrusive measurements (Particle Image Velocimetry (PIV)) and thermal phenomena are analyzed using non-intrusive heat flux instrumentation (Simultaneous temperature and velocity measurements have been carried out across the channel at different elevations). Moreover, this study deals with the influence of the Rayleigh number on the measured vertical velocity profiles as well as the thermal flux densities recorded along the heated wall. To do this, different values of the modified Rayleigh numbers were considered in the interval with the channel aspect ratio respectively of A= 5; and A = 12.5. The numbers of Nusselt obtained have been compared successfully with those of the literature. The effects of Rayleigh number and aspect ratio, on the velocity profiles, the convective and radiation heat transfer are examined in detail. |
Auteurs : Keo Sam-Ang; Yune Chan-Young; Dragan Razvan-Gabriel; Defer Didier; Breaban Florin Analysis of effects of diffraction and interference on detection by microwave thermography Journal of Civil Structural Health Monitoring, @article{Keo2019, title = {Analysis of effects of diffraction and interference on detection by microwave thermography}, author = {Sam-Ang Keo and Chan-Young Yune and Razvan-Gabriel Dragan and Didier Defer and Florin Breaban}, url = {https://link.springer.com/article/10.1007/s13349-019-00329-8#citeas}, doi = {10.1007/s13349-019-00329-8}, year = {2019}, date = {2019-03-01}, journal = {Journal of Civil Structural Health Monitoring}, publisher = {Springer Nature}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Sassine Emilio; Cherif Yassine; Antczak Emmanuel Parametric identification of thermophysical properties in masonry walls of buildings Journal of Building Engineering, 25, pp. 1008011ISSN: 2352-7102 @article{SASSINE2019100801, title = {Parametric identification of thermophysical properties in masonry walls of buildings}, author = {Emilio Sassine and Yassine Cherif and Emmanuel Antczak}, url = {http://www.sciencedirect.com/science/article/pii/S235271021930035X}, doi = {https://doi.org/10.1016/j.jobe.2019.100801}, issn = {2352-7102}, year = {2019}, date = {2019-01-01}, journal = {Journal of Building Engineering}, volume = {25}, pages = {100801}, abstract = {The objective of this work is to improve the knowledge on the thermophysical characterization of opaque walls by determining the thermophysical properties of an experimental massive brick wall identical to old buildings walls in the North of Europe. This method allows the determination of equivalent dynamic thermal properties of existing building walls λ and ρCp by simple measurement records of the inner (Twi) and outer (Two) wall temperatures as well as heat flux at the inner (or outer) face of the wall Fi. The approach developed here consists in carrying out a parametric identification of the thermophysical properties of the wall in question (namely the thermal conductivity λ and the heat capacity ρCp), by comparing and minimizing the difference between the results resulting from the experimental tests and those resulting from the numerical model. The optimization of the identified parameters is based on the Levenberg-Marquardt algorithm via the Comsol tool. The validation of the algorithm was carried out as well as its use in different ambient conditions (harmonic and random temperature profiles). The investigated method shows satisfactory results for both λ (0.877, 0.880, and 0.935 W/(m.K)) and ρCp (1,012,400, 944,710, and 1,057,100 J/(m3.K)). The inner heat exchange coefficient hi was also successfully determined for the three tests with similar values (6.13, 6.53, and 6.03 W/m2.K). The results were also confirmed by comparing measured and numerical outer heat fluxes for the optimized values. The second part of this article is devoted to the study of the sensitivity of the results with respect to various parameters: the optimization algorithm, the total simulation time, the simulation time step, and the meshing element size.}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } The objective of this work is to improve the knowledge on the thermophysical characterization of opaque walls by determining the thermophysical properties of an experimental massive brick wall identical to old buildings walls in the North of Europe. This method allows the determination of equivalent dynamic thermal properties of existing building walls λ and ρCp by simple measurement records of the inner (Twi) and outer (Two) wall temperatures as well as heat flux at the inner (or outer) face of the wall Fi. The approach developed here consists in carrying out a parametric identification of the thermophysical properties of the wall in question (namely the thermal conductivity λ and the heat capacity ρCp), by comparing and minimizing the difference between the results resulting from the experimental tests and those resulting from the numerical model. The optimization of the identified parameters is based on the Levenberg-Marquardt algorithm via the Comsol tool. The validation of the algorithm was carried out as well as its use in different ambient conditions (harmonic and random temperature profiles). The investigated method shows satisfactory results for both λ (0.877, 0.880, and 0.935 W/(m.K)) and ρCp (1,012,400, 944,710, and 1,057,100 J/(m3.K)). The inner heat exchange coefficient hi was also successfully determined for the three tests with similar values (6.13, 6.53, and 6.03 W/m2.K). The results were also confirmed by comparing measured and numerical outer heat fluxes for the optimized values. The second part of this article is devoted to the study of the sensitivity of the results with respect to various parameters: the optimization algorithm, the total simulation time, the simulation time step, and the meshing element size. |
Auteurs : Kossman S; Iost A; Chicot Didier; Mercier D; Serrano-Muñoz I; Roudet Francine; Dufrénoy P; Magnier V; Cristol A -L Journal of Materials Science, 54(6), pp. 4647-46701 @article{Kossman20194647, title = {Mechanical characterization by multiscale instrumented indentation of highly heterogeneous materials for braking applications}, author = {S Kossman and A Iost and Didier Chicot and D Mercier and I Serrano-Muñoz and Francine Roudet and P Dufrénoy and V Magnier and A -L Cristol}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058058254&doi=10.1007%2fs10853-018-3158-7&partnerID=40&md5=5a501efa8cd5b8a36004dbc7ba868ad7}, doi = {10.1007/s10853-018-3158-7}, year = {2019}, date = {2019-01-01}, journal = {Journal of Materials Science}, volume = {54}, number = {6}, pages = {4647-4670}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Bentoumi M; Mdarhri A; Benzaama H; Iost A; Chicot Didier Optical Engineering, 58(3), @article{Bentoumi2019, title = {Contribution of interferometry to Vickers indentation toughness determination of glass and ceramic glass}, author = {M Bentoumi and A Mdarhri and H Benzaama and A Iost and Didier Chicot}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85064157057&doi=10.1117%2f1.OE.58.3.034102&partnerID=40&md5=7fb54996d279fd16cf716d6188e1eaa3}, doi = {10.1117/1.OE.58.3.034102}, year = {2019}, date = {2019-01-01}, journal = {Optical Engineering}, volume = {58}, number = {3}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Betrancourt Damien; Chicot Didier; Kossman S; Louis Ghislain; Roudet Francine; Bulteel David Instrumented indentation study of slag in view of a better valorization Construction and Building Materials, 199, pp. 349-3581 @article{Betrancourt2019349, title = {Instrumented indentation study of slag in view of a better valorization}, author = {Damien Betrancourt and Didier Chicot and S Kossman and Ghislain Louis and Francine Roudet and David Bulteel}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058450535&doi=10.1016%2fj.conbuildmat.2018.12.002&partnerID=40&md5=45f067f062582928697e3170ab3b598f}, doi = {10.1016/j.conbuildmat.2018.12.002}, year = {2019}, date = {2019-01-01}, journal = {Construction and Building Materials}, volume = {199}, pages = {349-358}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Coorevits T; Kossman S; Chicot Didier; Hennebelle F; Montagne A; Iost A Virtual machine concept applied to uncertainties estimation in instrumented indentation testing Journal of Materials Research, 34(14), pp. 2501-25161 @article{Coorevits20192501, title = {Virtual machine concept applied to uncertainties estimation in instrumented indentation testing}, author = {T Coorevits and S Kossman and Didier Chicot and F Hennebelle and A Montagne and A Iost}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070085506&doi=10.1557%2fjmr.2019.203&partnerID=40&md5=cb55dc82fb3c44d3933be3a012f583e0}, doi = {10.1557/jmr.2019.203}, year = {2019}, date = {2019-01-01}, journal = {Journal of Materials Research}, volume = {34}, number = {14}, pages = {2501-2516}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Vodă M; Codrean C; Chicot Didier; Şerban V -A; Uţu D; Linul E; Buzdugan D Journal of Manufacturing Processes, 37, pp. 617-6271 @article{Vodă2019617, title = {Characterization of brazed joints by electrical resistance spot brazing with Ni-based amorphous self-flux alloys}, author = {M Vodă and C Codrean and Didier Chicot and V -A Şerban and D Uţu and E Linul and D Buzdugan}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85060858590&doi=10.1016%2fj.jmapro.2018.10.029&partnerID=40&md5=4915c4a0aacb5e2f3ec9e9754a3285f8}, doi = {10.1016/j.jmapro.2018.10.029}, year = {2019}, date = {2019-01-01}, journal = {Journal of Manufacturing Processes}, volume = {37}, pages = {617-627}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Crognier Nemo; Hoareau Guilhem; Aubourg Charles; Dubois Michel; Lacroix Brice; Branellec Mathieu; Callot Jean-Paul; Vennemann Torsten Syn-orogenic fluid flow in the Jaca basin (South Pyrenean Fold and Thrust Belt) from fracture and vein analyses Basin Research, pp. Accepted manuscript online1 @article{Crognier2018, title = {Syn-orogenic fluid flow in the Jaca basin (South Pyrenean Fold and Thrust Belt) from fracture and vein analyses}, author = {Nemo Crognier and Guilhem Hoareau and Charles Aubourg and Michel Dubois and Brice Lacroix and Mathieu Branellec and Jean-Paul Callot and Torsten Vennemann}, year = {2018}, date = {2018-01-01}, journal = {Basin Research}, pages = {Accepted manuscript online}, abstract = {This study aims at understanding the origin and nature of syn-orogenic fluid flow in the Jaca basin from the South Pyrenean fold and thrust-belt, as recorded in calcite and quartz veins of the Sierras Interiores (Spain) and the turbiditic basin, which cover upper Cretaceous t Late Eocene syntectonic deposits. The fracture network consists of a classical pattern of transverse and longitudinal fractures related to Layer Parallel Shortening (LPS) and folding respectively. Veins filled equally about the third of fractures in the carbonate shelf and turbidites. Carbon and oxygen isotopes of calcite veins mostly indicate precipitation from isotopically buffered water, consistent with high water-rock interaction. In the Sierras Interiores, petrographical observations and fluid inclusion microthermometry are consistent with two distinct stages of precipitation. The first stage is characterized by relatively low Th and low salinities (155-205° C and 0.5-3.2 wt% eq. NaCl). The second stage, which was characterized both by the formation of mode-I joints and by mode-I reactivation of preexisting veins, shows higher Th and salinities (215-270°C and 2.2-5.7 wt% eq. NaCl). Waters recorded in the second stage are interpreted to have interacted with underlying Triassic evaporites and flowed along major thrusts before vein precipitation, which are locally in thermal disequilibrium with host-rocks. We suggest the transition from a rather closed hydrological system during the first stage of vein formation, interpreted to have occurred during Eaux-chaudes thrusting (upper Lutetian-Bartonian), to a more open hydrological system during the second stage, which likely occurred during Gavarnie thrusting (Priabonian-early Rupelian). Finally, we also document the migration in space and time of hydrothermal pulses along the South Pyrenean Foreland Basin, related to the westward propagation of major thrusts during the Pyrenean orogeny.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } This study aims at understanding the origin and nature of syn-orogenic fluid flow in the Jaca basin from the South Pyrenean fold and thrust-belt, as recorded in calcite and quartz veins of the Sierras Interiores (Spain) and the turbiditic basin, which cover upper Cretaceous t Late Eocene syntectonic deposits. The fracture network consists of a classical pattern of transverse and longitudinal fractures related to Layer Parallel Shortening (LPS) and folding respectively. Veins filled equally about the third of fractures in the carbonate shelf and turbidites. Carbon and oxygen isotopes of calcite veins mostly indicate precipitation from isotopically buffered water, consistent with high water-rock interaction. In the Sierras Interiores, petrographical observations and fluid inclusion microthermometry are consistent with two distinct stages of precipitation. The first stage is characterized by relatively low Th and low salinities (155-205° C and 0.5-3.2 wt% eq. NaCl). The second stage, which was characterized both by the formation of mode-I joints and by mode-I reactivation of preexisting veins, shows higher Th and salinities (215-270°C and 2.2-5.7 wt% eq. NaCl). Waters recorded in the second stage are interpreted to have interacted with underlying Triassic evaporites and flowed along major thrusts before vein precipitation, which are locally in thermal disequilibrium with host-rocks. We suggest the transition from a rather closed hydrological system during the first stage of vein formation, interpreted to have occurred during Eaux-chaudes thrusting (upper Lutetian-Bartonian), to a more open hydrological system during the second stage, which likely occurred during Gavarnie thrusting (Priabonian-early Rupelian). Finally, we also document the migration in space and time of hydrothermal pulses along the South Pyrenean Foreland Basin, related to the westward propagation of major thrusts during the Pyrenean orogeny. |
Auteurs : Mengue Emmanuel; Mroueh Hussein; Lancelot Laurent; Eko Robert Medjo Geotechnical and Geological Engineering, 36(6), pp. 3831-38561 @article{Mengue20183831, title = {Evaluation of the Compressibility and Compressive Strength of a Compacted Cement Treated Laterite Soil for Road Application}, author = {Emmanuel Mengue and Hussein Mroueh and Laurent Lancelot and Robert Medjo Eko}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047250553&doi=10.1007%2fs10706-018-0576-x&partnerID=40&md5=10adac2e851e477743fc31e867a169c4}, doi = {10.1007/s10706-018-0576-x}, year = {2018}, date = {2018-01-01}, journal = {Geotechnical and Geological Engineering}, volume = {36}, number = {6}, pages = {3831-3856}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Mengue Emmanuel; Mroueh Hussein; Lancelot Laurent; Eko Robert Medjo Soils and Foundations, 58(3), pp. 666-6771 @article{Mengue2018666, title = {Design and parametric study of a pavement foundation layer made of cement-treated fine-grained lateritic soil}, author = {Emmanuel Mengue and Hussein Mroueh and Laurent Lancelot and Robert Medjo Eko}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047083132&doi=10.1016%2fj.sandf.2018.02.025&partnerID=40&md5=c281b9953344b3ac0e392951dc2b2ac1}, doi = {10.1016/j.sandf.2018.02.025}, year = {2018}, date = {2018-01-01}, journal = {Soils and Foundations}, volume = {58}, number = {3}, pages = {666-677}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Waterlot Christophe Alternative approach to the standard, measurements and testing programme used to establish phosphorus fractionation in soils Analytica Chimica Acta, 1003, pp. 26-331 @article{Waterlot2018, title = {Alternative approach to the standard, measurements and testing programme used to establish phosphorus fractionation in soils}, author = {Christophe Waterlot}, year = {2018}, date = {2018-01-01}, journal = {Analytica Chimica Acta}, volume = {1003}, pages = {26-33}, abstract = {The fractionation of phosphorus in 9 soils was established according to the standards, measurements and testing (SMT) programme. Five fractions were so defined and phosphorus was analysed by spectrophotometry. In parallel, the phosphorus extracted in each fraction was determined using graphite furnace atomic absorption spectrometry (GFAAS) after validation of this technique using certified reference materials. Phosphorus in soils was named total phosphorus, inorganic and organic phosphorus, apatite and non-apatite inorganic phosphorus, depending on extractants. The use of both analytical techniques revealed differences between the concentration of phosphorus in soluble extracts and highlighted the fact that spectrophotometry was a selective analytical technique. In view of the resourceand time-consuming of the SMT procedure and the results obtained in the present study, an alternative method was proposed to estimate the fractionation of phosphorus in soil in order to precise the potential effects of phosphorus on plant nutrition when plant biomass is produced as part of metal-contaminated soil management. (C) 2017 Elsevier B.V. All rights reserved.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The fractionation of phosphorus in 9 soils was established according to the standards, measurements and testing (SMT) programme. Five fractions were so defined and phosphorus was analysed by spectrophotometry. In parallel, the phosphorus extracted in each fraction was determined using graphite furnace atomic absorption spectrometry (GFAAS) after validation of this technique using certified reference materials. Phosphorus in soils was named total phosphorus, inorganic and organic phosphorus, apatite and non-apatite inorganic phosphorus, depending on extractants. The use of both analytical techniques revealed differences between the concentration of phosphorus in soluble extracts and highlighted the fact that spectrophotometry was a selective analytical technique. In view of the resourceand time-consuming of the SMT procedure and the results obtained in the present study, an alternative method was proposed to estimate the fractionation of phosphorus in soil in order to precise the potential effects of phosphorus on plant nutrition when plant biomass is produced as part of metal-contaminated soil management. (C) 2017 Elsevier B.V. All rights reserved. |
Auteurs : Bouchedjra M; Kanit T; Boulemia C; Amrouche Abdelwaheb; Belouchrani M E A European Journal of Mechanics, A/Solids, 72, pp. 1-151 @article{Bouchedjra20181, title = {Determination of the RVE size for polycrystal metals to predict monotonic and cyclic elastoplastic behavior: Statistical and numerical approach with new criteria}, author = {M Bouchedjra and T Kanit and C Boulemia and Abdelwaheb Amrouche and M E A Belouchrani}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85046031401&doi=10.1016%2fj.euromechsol.2018.04.011&partnerID=40&md5=01417e1e2c72f664ab90951239602ec1}, doi = {10.1016/j.euromechsol.2018.04.011}, year = {2018}, date = {2018-01-01}, journal = {European Journal of Mechanics, A/Solids}, volume = {72}, pages = {1-15}, note = {cited By 0}, keywords = {Axe 1, ER3}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Colli Carolina; Bataille Alain; Antczak Emmanuel; Buyle-Bodin François Life Cycle Assessment of a French Single-Family House Refurbishment: The “Bat-Eco2” Case Study Procedia CIRP 25th CIRP Life Cycle Engineering (LCE) Conference Copenhagen, Denmark, 69, pp. 160 - 1651ISSN: 2212-8271 @article{COLLI2018160, title = {Life Cycle Assessment of a French Single-Family House Refurbishment: The “Bat-Eco2” Case Study}, author = {Carolina Colli and Alain Bataille and Emmanuel Antczak and François Buyle-Bodin}, url = {http://www.sciencedirect.com/science/article/pii/S2212827117308120}, doi = {https://doi.org/10.1016/j.procir.2017.11.043}, issn = {2212-8271}, year = {2018}, date = {2018-04-01}, journal = {Procedia CIRP 25th CIRP Life Cycle Engineering (LCE) Conference Copenhagen, Denmark}, volume = {69}, pages = {160 - 165}, abstract = {This paper presents the methodological choices and the results of a complete life cycle assessment (LCA) carried out on a case study of building refurbishment. The LCA case study refers to the Bat-Eco2 French project which considers both environmental and economic performance of the refurbishment single-family house, located in the North of France. The LCA methodology is compliant with EN 15978, detailing the refurbishment life cycle stages, i.e. products, construction processes, use and end of life. The functional unit and the system boundaries are presented and discussed. A reference service period of 50 years was used. The construction product and equipment lifetimes were drawn from the social landlord data. The modeling was performed using Simapro v. 8.3.0.0 software, with Ecoinvent database v. 3.3 and ILCD environmental impact indicators. Energy consumption and water consumption were taken into account in the use stage along with replacements and maintenance. The main contributors to the environmental burden correspond to construction products and equipment, replacement and energy consumption. The related potential impact contributions range from 66% to 94% for most environmental indicators. Focusing on climate change indicator of the construction product, two thirds of this impact category come from three contributing construction materials which are the ground insulating EPS, the ground and wall ceramic tiles and the PVC windows frames. As for contribution of the replacements, it comes from window frames, from front door and inside doors, and from replacements of the boilers. Natural gas energy vector contributes mainly to use stage impacts. The reliability of those results are strengthened by uncertainty analysis. Hotspots are dependent both on the chosen reference study period of 50 years and on the product and equipment lifetimes.}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } This paper presents the methodological choices and the results of a complete life cycle assessment (LCA) carried out on a case study of building refurbishment. The LCA case study refers to the Bat-Eco2 French project which considers both environmental and economic performance of the refurbishment single-family house, located in the North of France. The LCA methodology is compliant with EN 15978, detailing the refurbishment life cycle stages, i.e. products, construction processes, use and end of life. The functional unit and the system boundaries are presented and discussed. A reference service period of 50 years was used. The construction product and equipment lifetimes were drawn from the social landlord data. The modeling was performed using Simapro v. 8.3.0.0 software, with Ecoinvent database v. 3.3 and ILCD environmental impact indicators. Energy consumption and water consumption were taken into account in the use stage along with replacements and maintenance. The main contributors to the environmental burden correspond to construction products and equipment, replacement and energy consumption. The related potential impact contributions range from 66% to 94% for most environmental indicators. Focusing on climate change indicator of the construction product, two thirds of this impact category come from three contributing construction materials which are the ground insulating EPS, the ground and wall ceramic tiles and the PVC windows frames. As for contribution of the replacements, it comes from window frames, from front door and inside doors, and from replacements of the boilers. Natural gas energy vector contributes mainly to use stage impacts. The reliability of those results are strengthened by uncertainty analysis. Hotspots are dependent both on the chosen reference study period of 50 years and on the product and equipment lifetimes. |
Auteurs : Colli Carolina; Bataille Alain; Buyle-Bodin François Aiming at a practical tool assessing residential building refurbishment project using LCA and LCC: the Bat-Eco2 Project Actions for a sustainable world from theory to practiceISBN 978-88-943228-1-1, @conference{, title = {Aiming at a practical tool assessing residential building refurbishment project using LCA and LCC: the Bat-Eco2 Project}, author = {Carolina Colli and Alain Bataille and François Buyle-Bodin}, editor = {ISDRS 2018 Conference}, year = {2018}, date = {2018-01-01}, booktitle = {Actions for a sustainable world from theory to practice}, volume = {ISBN 978-88-943228-1-1}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Antczak Emmanuel; Asli Mounir; Brachelet Franck; Brue Flore; Defer Didier Etude du comportement hygrothermique d’anas de lin utilisés comme isolant en vrac de combles perdus Conférence IBPSA France 2018Bordeaux @conference{, title = {Etude du comportement hygrothermique d’anas de lin utilisés comme isolant en vrac de combles perdus}, author = {Emmanuel Antczak and Mounir Asli and Franck Brachelet and Flore Brue and Didier Defer}, year = {2018}, date = {2018-01-01}, booktitle = {Conférence IBPSA France 2018}, organization = {Bordeaux}, note = {ACTN}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Asli Mounir; Brachelet Franck; Chauchois Alexis; Antczak Emmanuel; Defer Didier Numerical and experimental investigation of heat and mass transfer within bio-based material Thermal science, @article{, title = {Numerical and experimental investigation of heat and mass transfer within bio-based material}, author = {Mounir Asli and Franck Brachelet and Alexis Chauchois and Emmanuel Antczak and Didier Defer}, year = {2018}, date = {2018-01-01}, journal = {Thermal science}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Brachelet Franck; Lapeyronnie Damien; Antczak Emmanuel; Pallix Didier Etude du comportement hygrothermique d'un habitat neuf construit en pierre naturelle Journées nationales de maçonnerieIffstar Marne la Vallee @conference{, title = {Etude du comportement hygrothermique d'un habitat neuf construit en pierre naturelle}, author = {Franck Brachelet and Damien Lapeyronnie and Emmanuel Antczak and Didier Pallix}, year = {2018}, date = {2018-02-01}, booktitle = {Journées nationales de maçonnerie}, organization = {Iffstar Marne la Vallee}, note = {ACTN}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Waterlot Christophe; Hechelski Marie From the contaminated soils to the ecocatalysts: An original investigation INTECHEM PROCESS, 7-8 mars 2018, Compiègne @conference{Waterlot2018a, title = {From the contaminated soils to the ecocatalysts: An original investigation}, author = {Christophe Waterlot and Marie Hechelski}, year = {2018}, date = {2018-01-01}, booktitle = {INTECHEM PROCESS, 7-8 mars 2018, Compiègne}, abstract = {The number of contaminated sites by metals and metalloids (As, Cd, Cu, Pb and Zn) was around 1 250,000 in Europe in 2016. Most of them are located in France, notably in Northern France where numerous habitants live due to the high past industrial activities (mining, metallurgical, inorganic and organic chemistry). Consequently, environmental and sanitary problems like degradation and perturbation of soil activities (loss of the biodiversity…), non-compliant agricultural commodity, production of contaminated vegetables, lead poisoning and different types of symptoms in relation with metal human exposure were highlighted. This explains why the management of these contaminated soils (agricultural, urban and forest) is a great concern in the Hauts-de-France region and particularly in the contaminated area affected by the dust emission of two former lead and zinc smelters.Physical and chemical techniques (soil removal, soil washing, electrokinetic…) are widely used to remediate contaminated soils. However, most of them are expensive and destructive (fauna and flora are highly impacted and the resulting soils are often non-productive).To avoid the dispersion of contaminated soil particles, to restore contaminated sites and ecosystems and to maintain an economic activity in this area, an environmental friendly management based on the concept of assisted-phytoremediation and assisted-phytoextraction was studied. From this approach, the first interest was to immobilise the carcinogenic metals (Cd, Pb) and the second was to increase non-carcinogenic metal uptake by plants in order to elaborate new heterogeneous catalysts (called ecocatalysts) from the plant biomass. These bio-sourced catalysts were used in organic synthesis to produce pharmaceuticals taking into account the green chemistry concept. It was highlighted that these new catalysts were reusable, increased the reaction yields while minimizing the production of waste.}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } The number of contaminated sites by metals and metalloids (As, Cd, Cu, Pb and Zn) was around 1 250,000 in Europe in 2016. Most of them are located in France, notably in Northern France where numerous habitants live due to the high past industrial activities (mining, metallurgical, inorganic and organic chemistry). Consequently, environmental and sanitary problems like degradation and perturbation of soil activities (loss of the biodiversity…), non-compliant agricultural commodity, production of contaminated vegetables, lead poisoning and different types of symptoms in relation with metal human exposure were highlighted. This explains why the management of these contaminated soils (agricultural, urban and forest) is a great concern in the Hauts-de-France region and particularly in the contaminated area affected by the dust emission of two former lead and zinc smelters.Physical and chemical techniques (soil removal, soil washing, electrokinetic…) are widely used to remediate contaminated soils. However, most of them are expensive and destructive (fauna and flora are highly impacted and the resulting soils are often non-productive).To avoid the dispersion of contaminated soil particles, to restore contaminated sites and ecosystems and to maintain an economic activity in this area, an environmental friendly management based on the concept of assisted-phytoremediation and assisted-phytoextraction was studied. From this approach, the first interest was to immobilise the carcinogenic metals (Cd, Pb) and the second was to increase non-carcinogenic metal uptake by plants in order to elaborate new heterogeneous catalysts (called ecocatalysts) from the plant biomass. These bio-sourced catalysts were used in organic synthesis to produce pharmaceuticals taking into account the green chemistry concept. It was highlighted that these new catalysts were reusable, increased the reaction yields while minimizing the production of waste. |
Auteurs : Qiang Guo; Zairi Fahmi; Cristian Ovalle-Rodas; Xinglin Guo Constitutive modeling of the cyclic dissipation in thin and thick rubber specimens Journal of Applied Mathematics and Mechanics, 98, @article{qiang1878constitutive, title = {Constitutive modeling of the cyclic dissipation in thin and thick rubber specimens}, author = {Guo Qiang and Fahmi Zairi and Ovalle-Rodas Cristian and Guo Xinglin}, year = {2018}, date = {2018-01-01}, journal = {Journal of Applied Mathematics and Mechanics}, volume = {98}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Qiang Guo; Zairi Fahmi; Xinglin Guo Thermodynamics and mechanics of stretch-induced crystallization in rubbers Physical Review E, 97, pp. 0525011 @article{qiang2018thermodynamics, title = {Thermodynamics and mechanics of stretch-induced crystallization in rubbers}, author = {Guo Qiang and Fahmi Zairi and Guo Xinglin}, year = {2018}, date = {2018-01-01}, journal = {Physical Review E}, volume = {97}, pages = {052501}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Qiang Guo; Zairi Fahmi; Xinglin Guo An intrinsic dissipation model for high-cycle fatigue life prediction International Journal of Mechanical Sciences, 140, pp. 163–1711 @article{qiang2018intrinsic, title = {An intrinsic dissipation model for high-cycle fatigue life prediction}, author = {Guo Qiang and Fahmi Zairi and Guo Xinglin}, year = {2018}, date = {2018-01-01}, journal = {International Journal of Mechanical Sciences}, volume = {140}, pages = {163--171}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Qifeng Jiang; Jewan Ismail; Zairi Fahmi; Zhengwei Qu; Xiaobing Liu; Fahed Zairi Damage mechanisms in bioactive glass matrix composites under uniaxial compression Journal of the Mechanical Behavior of Biomedical Materials, 79, pp. 264–2721 @article{qifeng2018damage, title = {Damage mechanisms in bioactive glass matrix composites under uniaxial compression}, author = {Jiang Qifeng and Ismail Jewan and Fahmi Zairi and Qu Zhengwei and Liu Xiaobing and Zairi Fahed}, year = {2018}, date = {2018-01-01}, journal = {Journal of the Mechanical Behavior of Biomedical Materials}, volume = {79}, pages = {264--272}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Qiang Guo; Zairi Fahmi; Xinglin Guo A thermo-viscoelastic-damage constitutive model for cyclically loaded rubbers Part II: Experimental studies and parameter International Journal of Plasticity, 101, pp. 58–731 @article{2018guo1, title = {A thermo-viscoelastic-damage constitutive model for cyclically loaded rubbers Part II: Experimental studies and parameter}, author = {Guo Qiang and Fahmi Zairi and Guo Xinglin}, year = {2018}, date = {2018-01-01}, journal = {International Journal of Plasticity}, volume = {101}, pages = {58--73}, publisher = {Elsevier}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Bouibes A; Zaoui Ali; Luo W; Ahuja R Promising optical characteristics of zinc peroxide from first-principles investigation Solid State Communications, 263, pp. 106–1241 @article{bouibes2017promising, title = {Promising optical characteristics of zinc peroxide from first-principles investigation}, author = {A Bouibes and Ali Zaoui and W Luo and R Ahuja}, year = {2018}, date = {2018-01-01}, journal = {Solid State Communications}, volume = {263}, pages = {106--124}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Rammal D; Mroueh Hussein; S.Burlon Burlon Impact of thermal solicitations on the design of energy piles Renewable and Sustainable Energy Reviews, 92, pp. 111–1201 @article{rammal2018burlon, title = {Burlon Impact of thermal solicitations on the design of energy piles}, author = {D Rammal and Hussein Mroueh and S.Burlon}, year = {2018}, date = {2018-01-01}, journal = {Renewable and Sustainable Energy Reviews}, volume = {92}, pages = {111--120}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Benaissa H; Zaoui Ali; Ferhat M Revealing strong polytypism tendency in MgTe from first-principles Journal of Applied Physics, 123(235903), @article{benaissarevealing, title = {Revealing strong polytypism tendency in MgTe from first-principles}, author = {H Benaissa and Ali Zaoui and M Ferhat}, year = {2018}, date = {2018-01-01}, journal = {Journal of Applied Physics}, volume = {123}, number = {235903}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Jefferson Tony; Javierre Etelvina; Freeman Brubeck; Zaoui Ali; Koenders Eddie; Ferrara Liberato Research Progress on Numerical Models for Self-Healing Cementitious Materials ADVANCED MATERIALS INTERFACES, 5, @article{jefferson2018research, title = {Research Progress on Numerical Models for Self-Healing Cementitious Materials}, author = {Tony Jefferson and Etelvina Javierre and Brubeck Freeman and Ali Zaoui and Eddie Koenders and Liberato Ferrara}, year = {2018}, date = {2018-01-01}, journal = {ADVANCED MATERIALS INTERFACES}, volume = {5}, publisher = {Wiely}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Lushnikova A; Zaoui Ali Influence of single-walled carbon nantotubes structure and density on the ductility of cement paste Construction and Building Materials, 172, pp. 86–971 @article{lushnikova2018zaoui, title = {Influence of single-walled carbon nantotubes structure and density on the ductility of cement paste}, author = {A Lushnikova and Ali Zaoui}, year = {2018}, date = {2018-01-01}, journal = {Construction and Building Materials}, volume = {172}, pages = {86--97}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Zheng Yuanyuan; Zaoui Ali Mechanical behavior in hydrated Na-montmorillonite clay PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 505, pp. 582–5901 @article{zhengmechanical, title = {Mechanical behavior in hydrated Na-montmorillonite clay}, author = {Yuanyuan Zheng and Ali Zaoui}, year = {2018}, date = {2018-01-01}, journal = {PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS}, volume = {505}, pages = {582--590}, publisher = {Wiely}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Sango Thomas; Yona Arnaud-Maxime Cheumani; Duchatel-Crépy Lucie; Marin Adeline; Ndikontar Maurice Kor; Joly Nicolas; Lefebvre Jean-Marc Industrial Crops and Products, 122, pp. 657 - 6681ISSN: 0926-6690 @article{SANGO2018657, title = {Step–wise multi–scale deconstruction of banana pseudo–stem (Musa acuminata) biomass and morpho–mechanical characterization of extracted long fibres for sustainable applications}, author = {Thomas Sango and Arnaud-Maxime Cheumani Yona and Lucie Duchatel-Crépy and Adeline Marin and Maurice Kor Ndikontar and Nicolas Joly and Jean-Marc Lefebvre}, url = {http://www.sciencedirect.com/science/article/pii/S0926669018305594}, doi = {https://doi.org/10.1016/j.indcrop.2018.06.050}, issn = {0926-6690}, year = {2018}, date = {2018-01-01}, journal = {Industrial Crops and Products}, volume = {122}, pages = {657 - 668}, abstract = {Banana Pseudo–stem (BPS) is an annual renewable agricultural by–product with a potential for valorization in the production of paper, textile fibre or new bio–based materials. A gradual deconstruction process was implemented to determine BPS chemical composition and isolate sub–components that may be valorized in the formulation of bio–based polymer composites. At each step, the residues were analyzed by FTIR, X–ray diffraction and TGA–DTG. The chemical composition of the starting material (% of dry weight) was evaluated as: 13.4% total extractives, 6% pectins, 14.7% lignins, 28% hemicelluloses and 38% cellulose. The deconstruction process for BPS was efficient but led to mercerized cellulose (cellulose II) as a final residue, as assessed by the intense X–ray scattering peaks centered at 20.5° and 21.5°. Cellulose II formation was induced by the high concentration of the alkaline KOH solution used to dissolve hemicelluloses in holocellulose. The step–wise removal of non–cellulosic sub–components led to a more thermally stable residue. Long fibres were also obtained from BPS at a yield of 60%. These fibres display cellulose I structure and a thermal stability similar to the extracted cellulose. SEM analyses of long fibres showed transversal and lateral defects, the presence of surface hairiness and an almost cylindrical morphology. Uniaxial tensile tests were carried out at room temperature on 150 specimens randomly chosen among the less hairy fibres, with diameters ranging from 40 to 140 μm. Mechanical investigations (Young modulus: 6.3–26 GPa; nominal stress at break: 140–768 MPa; nominal strain at break: ∼3%) reveal a significant disparity strongly influenced by fibre diameter, except for the nominal strain at break which remains fairly constant around 3%. These results are comparable to the upper range of the values reported for fibres extracted from BPS through alternative chemical routes or for fibres obtained from other annual plants such as jute and hemp.}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } Banana Pseudo–stem (BPS) is an annual renewable agricultural by–product with a potential for valorization in the production of paper, textile fibre or new bio–based materials. A gradual deconstruction process was implemented to determine BPS chemical composition and isolate sub–components that may be valorized in the formulation of bio–based polymer composites. At each step, the residues were analyzed by FTIR, X–ray diffraction and TGA–DTG. The chemical composition of the starting material (% of dry weight) was evaluated as: 13.4% total extractives, 6% pectins, 14.7% lignins, 28% hemicelluloses and 38% cellulose. The deconstruction process for BPS was efficient but led to mercerized cellulose (cellulose II) as a final residue, as assessed by the intense X–ray scattering peaks centered at 20.5° and 21.5°. Cellulose II formation was induced by the high concentration of the alkaline KOH solution used to dissolve hemicelluloses in holocellulose. The step–wise removal of non–cellulosic sub–components led to a more thermally stable residue. Long fibres were also obtained from BPS at a yield of 60%. These fibres display cellulose I structure and a thermal stability similar to the extracted cellulose. SEM analyses of long fibres showed transversal and lateral defects, the presence of surface hairiness and an almost cylindrical morphology. Uniaxial tensile tests were carried out at room temperature on 150 specimens randomly chosen among the less hairy fibres, with diameters ranging from 40 to 140 μm. Mechanical investigations (Young modulus: 6.3–26 GPa; nominal stress at break: 140–768 MPa; nominal strain at break: ∼3%) reveal a significant disparity strongly influenced by fibre diameter, except for the nominal strain at break which remains fairly constant around 3%. These results are comparable to the upper range of the values reported for fibres extracted from BPS through alternative chemical routes or for fibres obtained from other annual plants such as jute and hemp. |
Auteurs : El-Meouche Rani; Abunemeh M; Hijaze I; Mebarki A; Shahrour Isam Developing Optimal Paths for Evacuating Risky Construction Sites Journal of Construction Engineering and Management, 144(2), ISSN: 0733-9364 @article{RN321, title = {Developing Optimal Paths for Evacuating Risky Construction Sites}, author = {Rani El-Meouche and M Abunemeh and I Hijaze and A Mebarki and Isam Shahrour}, doi = {10.1061/(asce)co.1943-7862.0001413}, issn = {0733-9364}, year = {2018}, date = {2018-01-01}, journal = {Journal of Construction Engineering and Management}, volume = {144}, number = {2}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Plytycz Barbara; Bigaj Janusz; Osikowski Artur; Hofman Sebastian; Falniowski Andrzej; Panz Tomasz; Grzmil Pawel; Vandenbulcke Franck The existence of fertile hybrids of closely related model earthworm species, Eisenia andrei and E. fetida PLoS ONE, 13(1), pp. e01917111 @article{Plytycz2018, title = {The existence of fertile hybrids of closely related model earthworm species, Eisenia andrei and E. fetida}, author = {Barbara Plytycz and Janusz Bigaj and Artur Osikowski and Sebastian Hofman and Andrzej Falniowski and Tomasz Panz and Pawel Grzmil and Franck Vandenbulcke}, year = {2018}, date = {2018-01-01}, journal = {PLoS ONE}, volume = {13}, number = {1}, pages = {e0191711}, abstract = {Lumbricid earthworms Eisenia andrei (Ea) and E. fetida (Ef) are simultaneous hermaphrodites with reciprocal insemination capable of self-fertilization while the existence of hybridization of these two species was still debatable. During the present investigation fertile hybrids of Ea and Ef were detected. Virgin specimens of Ea and Ef were laboratory crossed (Ea+Ef) and their progeny was doubly identified. 1 ±identified by species-specific maternally derived haploid mitochondrial DNA sequences of the COI gene being either `a' for worms hatched from Ea ova or `f' for worms hatched from Ef ova. 2 ±identified by the diploid maternal/ paternal nuclear DNA sequences of 28s rRNA gene being either `AA' for Ea, `FF' for Ef, or AF/FA for their hybrids derived either from the `aA' or `fF' ova, respectively. Among offspring of Ea+Ef pairs in F1 generation there were mainly aAA and fFF earthworms resulted from the facilitated self-fertilization and some aAF hybrids from aA ova but none fFA hybrids from fF ova. In F2 generation resulting from aAF hybrids mated with aAA a new generations of aAA and aAF hybrids were noticed, while aAF hybrids mated with fFF gave fFF and both aAF and fFA hybrids. Hybrids intercrossed together produced plenty of cocoons but no hatchlings independently whether aAF+aAF or aAF+fFA were mated. These results indicated that Ea and Ef species, easy to maintain in aboratory and commonly used as convenient models in biomedicine and ecotoxicology, may also serve in studies on molecular basis of interspecific barriers and mechanisms of introgression and speciation. Hypothetically, their asymmetrical hybridization can be modified by some external factors.}, note = {ACLO}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Lumbricid earthworms Eisenia andrei (Ea) and E. fetida (Ef) are simultaneous hermaphrodites with reciprocal insemination capable of self-fertilization while the existence of hybridization of these two species was still debatable. During the present investigation fertile hybrids of Ea and Ef were detected. Virgin specimens of Ea and Ef were laboratory crossed (Ea+Ef) and their progeny was doubly identified. 1 ±identified by species-specific maternally derived haploid mitochondrial DNA sequences of the COI gene being either `a' for worms hatched from Ea ova or `f' for worms hatched from Ef ova. 2 ±identified by the diploid maternal/ paternal nuclear DNA sequences of 28s rRNA gene being either `AA' for Ea, `FF' for Ef, or AF/FA for their hybrids derived either from the `aA' or `fF' ova, respectively. Among offspring of Ea+Ef pairs in F1 generation there were mainly aAA and fFF earthworms resulted from the facilitated self-fertilization and some aAF hybrids from aA ova but none fFA hybrids from fF ova. In F2 generation resulting from aAF hybrids mated with aAA a new generations of aAA and aAF hybrids were noticed, while aAF hybrids mated with fFF gave fFF and both aAF and fFA hybrids. Hybrids intercrossed together produced plenty of cocoons but no hatchlings independently whether aAF+aAF or aAF+fFA were mated. These results indicated that Ea and Ef species, easy to maintain in aboratory and commonly used as convenient models in biomedicine and ecotoxicology, may also serve in studies on molecular basis of interspecific barriers and mechanisms of introgression and speciation. Hypothetically, their asymmetrical hybridization can be modified by some external factors. |
Auteurs : Tilioua Amine; Libessart Laurent; Lassue Stéphane Applied Thermal Engineering, 142, pp. 56 - 671ISSN: 1359-4311 @article{TILIOUA201856, title = {Characterization of the thermal properties of fibrous insulation materials made from recycled textile fibers for building applications : Theoretical and experimental analyses}, author = {Amine Tilioua and Laurent Libessart and Stéphane Lassue}, url = {http://www.sciencedirect.com/science/article/pii/S1359431117355473}, doi = {https://doi.org/10.1016/j.applthermaleng.2018.06.071}, issn = {1359-4311}, year = {2018}, date = {2018-01-01}, journal = {Applied Thermal Engineering}, volume = {142}, pages = {56 - 67}, abstract = {The present study focuses on the thermal characterization of an insulation material made from recycled textile fibers for building applications, which qualifies as a semi-transparent medium. Experimental and numerical studies have been carried out to determine the radiative flux ratio for such a recycled textile fiber-based insulation for three thicknesses (5.35 mm, 5.67 mm and 6.64 mm). The inverse method, which relies on reflection and transmission measurements using a Fourier-Transform Infrared Spectrometer coupled to an integrating sphere, has been applied along with a least squares procedure. The relevant radiative properties of recycled textile insulation material are obtained by minimizing the deviation between experimental and theoretical data. The effective thermal conductivity of the fibrous insulation is measured at room temperature by means of a fluxmeter device. The radiative thermal conductivity is estimated by implementing the Rosseland model, while phonic conductivity is derived from the effective thermal conductivity. The radiative thermal conductivity displays a very limited effect in comparison with phonic thermal conductivity; the latter varies according to thickness, which in turn is determined by fiber density and size. Phonic thermal conductivity accounts for 26% of the effective thermal conductivity and moreover constitutes a large share (74%) relative to the radiative conductivity. The maximum radiative thermal conductivity value equals 0.0102 W m−1 K−1 for a thickness of 5.67 mm, with this value dropping slightly to 0.010 W m−1 K−1 for a thickness of 6.46 mm, and to a minimum value of 0.0096 W m−1 K−1 at a 5.35-mm thickness.}, note = {ACL}, keywords = {Axe 1, ER3}, pubstate = {published}, tppubtype = {article} } The present study focuses on the thermal characterization of an insulation material made from recycled textile fibers for building applications, which qualifies as a semi-transparent medium. Experimental and numerical studies have been carried out to determine the radiative flux ratio for such a recycled textile fiber-based insulation for three thicknesses (5.35 mm, 5.67 mm and 6.64 mm). The inverse method, which relies on reflection and transmission measurements using a Fourier-Transform Infrared Spectrometer coupled to an integrating sphere, has been applied along with a least squares procedure. The relevant radiative properties of recycled textile insulation material are obtained by minimizing the deviation between experimental and theoretical data. The effective thermal conductivity of the fibrous insulation is measured at room temperature by means of a fluxmeter device. The radiative thermal conductivity is estimated by implementing the Rosseland model, while phonic conductivity is derived from the effective thermal conductivity. The radiative thermal conductivity displays a very limited effect in comparison with phonic thermal conductivity; the latter varies according to thickness, which in turn is determined by fiber density and size. Phonic thermal conductivity accounts for 26% of the effective thermal conductivity and moreover constitutes a large share (74%) relative to the radiative conductivity. The maximum radiative thermal conductivity value equals 0.0102 W m−1 K−1 for a thickness of 5.67 mm, with this value dropping slightly to 0.010 W m−1 K−1 for a thickness of 6.46 mm, and to a minimum value of 0.0096 W m−1 K−1 at a 5.35-mm thickness. |
Auteurs : Libessart Laurent; Kenai Mohamed Amine Measuring thermal conductivity of green-walls components in controlled conditions Journal of Building Engineering, 19, pp. 258 - 2651ISSN: 2352-7102 @article{LIBESSART2018258, title = {Measuring thermal conductivity of green-walls components in controlled conditions}, author = {Laurent Libessart and Mohamed Amine Kenai}, url = {http://www.sciencedirect.com/science/article/pii/S2352710217307660}, doi = {https://doi.org/10.1016/j.jobe.2018.05.016}, issn = {2352-7102}, year = {2018}, date = {2018-01-01}, journal = {Journal of Building Engineering}, volume = {19}, pages = {258 - 265}, abstract = {This study is the first stage of a larger multidisciplinary research program about the environmental performances and functions of green walls in urban ecosystems. It aims to determine how green-walls contribute to the thermal insulation of buildings by measuring the thermal conductivities of green-walls’ components in controlled conditions. The study focused on complex green-wall systems, i.e. with a structure containing substrate in opposition with green-walls based on climbing plants. The four substrates were materials found in commercial substrate combinations. To compare, the thermal conductivities on two plants are carried out. In dry conditions, they showed conductivities of 0.062 W/m °C for sphagnum moss (Sphagnum cristatum), 0.060W/m °C for outdoor planting mix, and 0.105 W/m °C for clay balls and 0.051 W/m °C for substrate from a green-wall. Vegetation conductivities were also measured for ivy (Hedera helix) and Virginia creeper (Parthenocissus quinquefolia). As expected, conductivities were quite high (between 0.220 and 0.274 W/m °C). With the building thermal simulation, green-walls are technically able to improve buildings’ insulation.}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } This study is the first stage of a larger multidisciplinary research program about the environmental performances and functions of green walls in urban ecosystems. It aims to determine how green-walls contribute to the thermal insulation of buildings by measuring the thermal conductivities of green-walls’ components in controlled conditions. The study focused on complex green-wall systems, i.e. with a structure containing substrate in opposition with green-walls based on climbing plants. The four substrates were materials found in commercial substrate combinations. To compare, the thermal conductivities on two plants are carried out. In dry conditions, they showed conductivities of 0.062 W/m °C for sphagnum moss (Sphagnum cristatum), 0.060W/m °C for outdoor planting mix, and 0.105 W/m °C for clay balls and 0.051 W/m °C for substrate from a green-wall. Vegetation conductivities were also measured for ivy (Hedera helix) and Virginia creeper (Parthenocissus quinquefolia). As expected, conductivities were quite high (between 0.220 and 0.274 W/m °C). With the building thermal simulation, green-walls are technically able to improve buildings’ insulation. |
Auteurs : Wang D; Zentar Rachid; Abriak Nor-Edine; Di S Long-term mechanical performance of marine sediments solidified with cement, lime, and fly ash Marine Georesources & …, 36, pp. 123-1301 @article{Wang2018, title = {Long-term mechanical performance of marine sediments solidified with cement, lime, and fly ash}, author = {D Wang and Rachid Zentar and Nor-Edine Abriak and S Di}, url = {https://www.tandfonline.com/doi/abs/10.1080/1064119X.2017.1320600}, doi = {https://doi.org/10.1080/1064119X.2017.1320600}, year = {2018}, date = {2018-01-01}, journal = {Marine Georesources & …}, volume = {36}, pages = {123-130}, publisher = {Taylor & Francis}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Djafari D; Mekerta B; Zentar Rachid; ... Sludge of WWTPs, from waste family to sustainable development African Review of …, 3(1), pp. 1-61 @article{Djafari2018, title = {Sludge of WWTPs, from waste family to sustainable development}, author = {D Djafari and B Mekerta and Rachid Zentar and ...}, url = {http://rastd.univ-adrar.dz/index.php/RASTD/article/view/89}, year = {2018}, date = {2018-01-01}, journal = {African Review of …}, volume = {3}, number = {1}, pages = {1-6}, publisher = {rastd.univ-adrar.dz}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Hamouche F; Zentar Rachid Effects of organic matter on physical properties of dredged marine sediments Waste and Biomass Valorization, @article{Hamouche2018, title = {Effects of organic matter on physical properties of dredged marine sediments}, author = {F Hamouche and Rachid Zentar}, url = {https://link.springer.com/article/10.1007/s12649-018-0387-6}, doi = {https://doi.org/10.1007/s12649-018-0387-6}, year = {2018}, date = {2018-01-01}, journal = {Waste and Biomass Valorization}, publisher = {Springer}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Driss D; Zentar Rachid; Belkacem M; ... Sludge wastewater treatment plants a raw mater to produce a green-cement REVISTA INTERNACIONAL DE CONTAMINACION AMBIENTAL, ISSN: 0188-4999 @article{Driss2018, title = {Sludge wastewater treatment plants a raw mater to produce a green-cement}, author = {D Driss and Rachid Zentar and M Belkacem and ...}, issn = {0188-4999}, year = {2018}, date = {2018-01-01}, journal = {REVISTA INTERNACIONAL DE CONTAMINACION AMBIENTAL}, publisher = {CENTRO CIENCIAS ATMOSFERA …}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Wang D; Zentar Rachid; Abriak Nor-Edine Journal of Materials in Civil …, 30(3), @article{Wang2018a, title = {Durability and swelling of solidified/stabilized dredged marine soils with class-f fly ash, cement, and lime}, author = {D Wang and Rachid Zentar and Nor-Edine Abriak}, url = {https://ascelibrary.org/doi/abs/10.1061/%28ASCE%29MT.1943-5533.0002187}, doi = {https://doi.org/10.1061/(ASCE)MT.1943-5533.0002187}, year = {2018}, date = {2018-01-01}, journal = {Journal of Materials in Civil …}, volume = {30}, number = {3}, publisher = {ascelibrary.org}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Hamouche F; Zentar Rachid The relationship between organic matter content and the immediate bearing index of dredged sediments REVISTA INTERNACIONAL DE CONTAMINACION AMBIENTAL, @article{HamoucheF.2018, title = {The relationship between organic matter content and the immediate bearing index of dredged sediments}, author = {F Hamouche and Rachid Zentar}, year = {2018}, date = {2018-01-01}, journal = {REVISTA INTERNACIONAL DE CONTAMINACION AMBIENTAL}, publisher = {CENTRO CIENCIAS ATMOSFERA …}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Schettini Antonella T; Leite Mariangela-G.P.; Messias Maria-Cristina-T.B.; Gauthier Arnaud; Li Haixiao; Kozovits Alessandra-R. Exploring Al, Mn and Fe phytoextraction in 27 ferruginous rocky outcrops plant species Flora, 238, pp. 175-1821 @article{Schettini2018, title = {Exploring Al, Mn and Fe phytoextraction in 27 ferruginous rocky outcrops plant species}, author = {Antonella T Schettini and Mariangela-G.P. Leite and Maria-Cristina-T.B. Messias and Arnaud Gauthier and Haixiao Li and Alessandra-R. Kozovits}, year = {2018}, date = {2018-01-01}, journal = {Flora}, volume = {238}, pages = {175-182}, abstract = {Worldwide, substrates naturally rich in Al, Fe and Mn are the subject of mining, generating degradation of large areas and producing wastes with high pollution potential for water resources, soil and atmosphere, causing harm to human health and ecosystems. The present study investigated the total and phytoavailable concentration of these elements in soils and leaves of 27 native plant species from ferruginous rocky outcrops, finding values above the toxic limits described in literature and environmental legislation. Foliar levels of metals varied widely among species, demonstrating different phytoextraction or exclusionpotentials, which werenot explained by the total concentrationof elements or available soilfractions. Although most species are not considered hyperaccumulators,the results indicate the existence of species related to sites of greater availability of certain metals or that can modify soil quality through their different phytoextraction skills, with potential future uses in decontamination, stabilization, phytomining and ecological restoration projects.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Worldwide, substrates naturally rich in Al, Fe and Mn are the subject of mining, generating degradation of large areas and producing wastes with high pollution potential for water resources, soil and atmosphere, causing harm to human health and ecosystems. The present study investigated the total and phytoavailable concentration of these elements in soils and leaves of 27 native plant species from ferruginous rocky outcrops, finding values above the toxic limits described in literature and environmental legislation. Foliar levels of metals varied widely among species, demonstrating different phytoextraction or exclusionpotentials, which werenot explained by the total concentrationof elements or available soilfractions. Although most species are not considered hyperaccumulators,the results indicate the existence of species related to sites of greater availability of certain metals or that can modify soil quality through their different phytoextraction skills, with potential future uses in decontamination, stabilization, phytomining and ecological restoration projects. |
Auteurs : Leclercq-Dransar Juliet; Santorufo Lucia; Pernin Céline; Louvel Brice; Demuynck Sylvain; Grumiaux Fabien; Douay Francis; Leprêtre Alain Litter breakdown as a tool for assessment of the efficiency of afforestation and ash-aided phytostabilisation on metal contaminated soils functioning in Northern France Environmental Science and Pollution Research, @article{Leclercq-Dransart2018, title = {Litter breakdown as a tool for assessment of the efficiency of afforestation and ash-aided phytostabilisation on metal contaminated soils functioning in Northern France}, author = {Juliet Leclercq-Dransar and Lucia Santorufo and Céline Pernin and Brice Louvel and Sylvain Demuynck and Fabien Grumiaux and Francis Douay and Alain Leprêtre}, year = {2018}, date = {2018-01-01}, journal = {Environmental Science and Pollution Research}, abstract = {The main objective of the study was to assess the efficiency of phytoremediation methods implemented for 14 years on highly metal contaminated soils. The different experimental strategies were plots planted with a tree mix or with a single tree species coupled or not with the use of fly-ashes as an amendment to limit metals mobility in soil. The breakdown of poplar litter on the four plots was monitored during 10 months. In parallel, colonization of litter bags by functional groups of mesofauna (Collembola and Acari) was followed. Two mesh sized litter-bags were used to allow distinguishing microbial and mesofaunal actions on the litter breakdown. We observed the breakdown of litter in four studied plots. Litter breakdown occurred faster in 3 mm litter bags than 250 µm ones during summer demonstrating the importance of mesofauna. Mixed plantation allowed faster litter breakdown than mono-specific plantation. A higher abundance of mesofauna and/or better abiotic conditions (moisture, shading…) could explain this result. Regarding litter breakdown and mesofauna, no significant difference was observed between the amended plots and those subjected to soil phytomanagement. However, communities of the studied area are disturbed since a low abundance of detritivores was observed. This could explain also the slower litter breakdown than expected in our study. To conclude, among the phytomanagement methods tested, mixed plantations could provide a benefit for the restoration of degraded soils. By contrast, the use of fly-ashes does not seem to have any effect on the functionality of ecosystem neither on the litter breakdown process nor on the abundance of mesofauna.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The main objective of the study was to assess the efficiency of phytoremediation methods implemented for 14 years on highly metal contaminated soils. The different experimental strategies were plots planted with a tree mix or with a single tree species coupled or not with the use of fly-ashes as an amendment to limit metals mobility in soil. The breakdown of poplar litter on the four plots was monitored during 10 months. In parallel, colonization of litter bags by functional groups of mesofauna (Collembola and Acari) was followed. Two mesh sized litter-bags were used to allow distinguishing microbial and mesofaunal actions on the litter breakdown. We observed the breakdown of litter in four studied plots. Litter breakdown occurred faster in 3 mm litter bags than 250 µm ones during summer demonstrating the importance of mesofauna. Mixed plantation allowed faster litter breakdown than mono-specific plantation. A higher abundance of mesofauna and/or better abiotic conditions (moisture, shading…) could explain this result. Regarding litter breakdown and mesofauna, no significant difference was observed between the amended plots and those subjected to soil phytomanagement. However, communities of the studied area are disturbed since a low abundance of detritivores was observed. This could explain also the slower litter breakdown than expected in our study. To conclude, among the phytomanagement methods tested, mixed plantations could provide a benefit for the restoration of degraded soils. By contrast, the use of fly-ashes does not seem to have any effect on the functionality of ecosystem neither on the litter breakdown process nor on the abundance of mesofauna. |
Auteurs : Almirón Jonathan; Alcazar Hermann; Churata Rossibel; Roudet Francine; Ziouche Katir; Chicot Didier Materials Research Express, 5(12), pp. 1250101 @article{2053-1591-5-12-125010, title = {Effect of impregnation solutions on the synthesis of Ni-Cu/Al 2 O 3 catalyst to obtain carbon nanofibers}, author = {Jonathan Almirón and Hermann Alcazar and Rossibel Churata and Francine Roudet and Katir Ziouche and Didier Chicot}, url = {http://stacks.iop.org/2053-1591/5/i=12/a=125010}, year = {2018}, date = {2018-01-01}, journal = {Materials Research Express}, volume = {5}, number = {12}, pages = {125010}, abstract = {The present work reports on the influence of nickel molar loading and impregnation solutions, nitrate salts and copper and nickel ammonium complexes, on the synthesis of Ni-Cu catalyst supported on alumina for obtaining carbon nanofibers by catalytic chemical vapor deposition of methane. These catalysts were characterized by N 2 adsorption-desorption, x-ray Diffraction, Thermo-Gravimetric Analysis and Scanning Electron Microscopy for the carbon nanostructures analysis. The catalytic activity was studied through the carbon deposition under different conditions of temperature (600 °C and 650 °C) and pressure (in ultra-low pressure conditions and 0.5 bar). As a main result, catalyst using nitrate salts impregnation leads to the major carbon nanofibers yielding at the temperature of 600 °C. On the other hand, catalysts synthesized by ammonium complexes impregnation present also improved characteristics compared to conventional catalysts that allows considering this methodology as an interesting alternative in carbon nanofibers producing.}, note = {ACLI}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } The present work reports on the influence of nickel molar loading and impregnation solutions, nitrate salts and copper and nickel ammonium complexes, on the synthesis of Ni-Cu catalyst supported on alumina for obtaining carbon nanofibers by catalytic chemical vapor deposition of methane. These catalysts were characterized by N 2 adsorption-desorption, x-ray Diffraction, Thermo-Gravimetric Analysis and Scanning Electron Microscopy for the carbon nanostructures analysis. The catalytic activity was studied through the carbon deposition under different conditions of temperature (600 °C and 650 °C) and pressure (in ultra-low pressure conditions and 0.5 bar). As a main result, catalyst using nitrate salts impregnation leads to the major carbon nanofibers yielding at the temperature of 600 °C. On the other hand, catalysts synthesized by ammonium complexes impregnation present also improved characteristics compared to conventional catalysts that allows considering this methodology as an interesting alternative in carbon nanofibers producing. |
Auteurs : Kazamer Norbert; Kossman Stephania; Baranyi István; Chicot Didier; Serban Viorel-Aurel; Rajnai Zoltán; Voda Mircea Matériaux & Techniques, 106(2), pp. 2021 @article{refId0, title = {Effet de l'addition de TiB2 sur les propriétés mécaniques et tribologiques de revêtements NiCrBSi déposés par projection thermique}, author = {Norbert Kazamer and Stephania Kossman and István Baranyi and Didier Chicot and Viorel-Aurel Serban and Zoltán Rajnai and Mircea Voda}, url = {https://doi.org/10.1051/mattech/2018026}, doi = {10.1051/mattech/2018026}, year = {2018}, date = {2018-01-01}, journal = {Matériaux & Techniques}, volume = {106}, number = {2}, pages = {202}, note = {ACLN}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Mejias A; Chicot Didier; Pertuz A; Iost A; Montagne A; Cadenas P Surface and Coatings Technology, 334, pp. 410 - 4191ISSN: 0257-8972 @article{MEJIAS2018410, title = {Hardness evaluation from a bilayer coating system of Ni-P deposited on carbon steel plates by multicycle indentation tests}, author = {A Mejias and Didier Chicot and A Pertuz and A Iost and A Montagne and P Cadenas}, url = {http://www.sciencedirect.com/science/article/pii/S0257897217311490}, doi = {https://doi.org/10.1016/j.surfcoat.2017.11.011}, issn = {0257-8972}, year = {2018}, date = {2018-01-01}, journal = {Surface and Coatings Technology}, volume = {334}, pages = {410 - 419}, note = {ACLI}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : BOUFALA K; Ouhenia Salim; Louis Ghislain; Betrancourt Damien; Chicot Didier; Belabbas I Microstructure analysis and mechanical properties by instrumented indentation of Charonia Lampas Lampas shell @article{article, title = {Microstructure analysis and mechanical properties by instrumented indentation of Charonia Lampas Lampas shell}, author = {K BOUFALA and Salim Ouhenia and Ghislain Louis and Damien Betrancourt and Didier Chicot and I Belabbas}, year = {2018}, date = {2018-01-01}, booktitle = {Journal of the Mechanical Behavior of Biomedical Materials}, note = {ACLI}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Drumond Geovana; Pinheiro Bianca; Pasqualino Ilson; Roudet Francine; Chicot Didier (51234), pp. V004T03A0251 @article{drumond_high_2018, title = {High Cycle Fatigue Damage Evaluation of Steel Pipelines Based on Microhardness Changes During Cyclic Loads: Part II}, author = {Geovana Drumond and Bianca Pinheiro and Ilson Pasqualino and Francine Roudet and Didier Chicot}, url = {http://dx.doi.org/10.1115/OMAE2018-78752}, doi = {10.1115/OMAE2018-78752}, year = {2018}, date = {2018-01-01}, number = {51234}, pages = {V004T03A025}, abstract = {The hardness of a material shows its ability to resist to microplastic deformation caused by indentation or penetration and is closely related to the plastic slip capacity of the material. Therefore, it could be significant to study the resistance to microplastic deformations based on microhardness changes on the surface, and the associated accumulation of fatigue damage. The present work is part of a research study being carried out with the aim of proposing a new method based on microstructural changes, represented by a fatigue damage indicator, to predict fatigue life of steel structures submitted to cyclic loads, before macroscopic cracking. Here, Berkovich indentation tests were carried out in the samples previously submitted to high cycle fatigue (HCF) tests. It was observed that the major changes in the microhardness values occurred at the surface of the material below 3 μm of indentation depth, and around 20% of the fatigue life of the material, proving that microcracking is a surface phenomenon. So, the results obtained for the surface of the specimen and at the beginning of the fatigue life of the material will be considered in the proposal of a new method to estimate the fatigue life of metal structures.}, note = {ACTI}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } The hardness of a material shows its ability to resist to microplastic deformation caused by indentation or penetration and is closely related to the plastic slip capacity of the material. Therefore, it could be significant to study the resistance to microplastic deformations based on microhardness changes on the surface, and the associated accumulation of fatigue damage. The present work is part of a research study being carried out with the aim of proposing a new method based on microstructural changes, represented by a fatigue damage indicator, to predict fatigue life of steel structures submitted to cyclic loads, before macroscopic cracking. Here, Berkovich indentation tests were carried out in the samples previously submitted to high cycle fatigue (HCF) tests. It was observed that the major changes in the microhardness values occurred at the surface of the material below 3 μm of indentation depth, and around 20% of the fatigue life of the material, proving that microcracking is a surface phenomenon. So, the results obtained for the surface of the specimen and at the beginning of the fatigue life of the material will be considered in the proposal of a new method to estimate the fatigue life of metal structures. |
Auteurs : Leang Enghok; Tittelein Pierre; Zalewski Laurent; Lassue Stéphane Étude expérimentale et numérique d'un mur solaire composite intégrant une paroi stockeuse en mortier ciment et MCP micro-encapsulé actes du Congrès Français de Thermique 2018Pau, @inproceedings{leang_etude_2018, title = {Étude expérimentale et numérique d'un mur solaire composite intégrant une paroi stockeuse en mortier ciment et MCP micro-encapsulé}, author = {Enghok Leang and Pierre Tittelein and Laurent Zalewski and Stéphane Lassue}, year = {2018}, date = {2018-01-01}, booktitle = {actes du Congrès Français de Thermique 2018}, address = {Pau}, abstract = {Cet article présente l'étude d'un mur solaire de type Trombe composite intégrant une paroi stockeuse constituée d'un mortier ciment contenant un matériau à changement de phase micro-encapsulé. Un modèle numérique de ce mur solaire a été développé en utilisant le logiciel Dymola/Modelica. Les résultats issus de simulations sont comparés à des mesures expérimentales réalisées sur une maquette à échelle réduite en vue d'une validation du modèle. Les résultats numériques et mesurées obtenus montrent une bonne similitude pour les grandeurs caractéristiques du composant solaire essentiels à l'évaluation de ses performances énergétiques}, note = {ACTN}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {inproceedings} } Cet article présente l'étude d'un mur solaire de type Trombe composite intégrant une paroi stockeuse constituée d'un mortier ciment contenant un matériau à changement de phase micro-encapsulé. Un modèle numérique de ce mur solaire a été développé en utilisant le logiciel Dymola/Modelica. Les résultats issus de simulations sont comparés à des mesures expérimentales réalisées sur une maquette à échelle réduite en vue d'une validation du modèle. Les résultats numériques et mesurées obtenus montrent une bonne similitude pour les grandeurs caractéristiques du composant solaire essentiels à l'évaluation de ses performances énergétiques |
Auteurs : Akil Mostafa; Defer Didier; Tittelein Pierre; Suard Frédéric Conférence IBPSA FranceBordeaux, @inproceedings{mostafa_akil_methode_2018, title = {Méthode statistique de classification automatique des mesures de consommations de bâtiments d’enseignement en eau, gaz et électricité pour la mise en évidence d’anomalies de fonctionnement}, author = {Mostafa Akil and Didier Defer and Pierre Tittelein and Frédéric Suard}, url = {http://ibpsa.fr/index.php?option=com_jdownloads&Itemid=53&view=viewcategory&catid=81}, year = {2018}, date = {2018-01-01}, booktitle = {Conférence IBPSA France}, address = {Bordeaux}, abstract = {Les gestionnaires de parc équipent de plus en plus leurs bâtiments avec de nombreux capteurs. L’analyse des données issues de ces mesures reste pourtant compliquée et se limite souvent à la définition de seuils d’alerte. Cet article vise à développer une méthodologie d’analyse basée sur l’élaboration d’indicateurs statistiques. Leur suivi pourra permettre de détecter des évolutions de comportement ou de performance des systèmes. La mise en évidence automatisée d’anomalies de fonctionnement pourra déclencher des alertes. Notre première approche se concentre sur le traitement de données issues de collèges gérés par le département de Pas de Calais. 117 bâtiments de collège sont instrumentés avec différents capteurs (eau, électricité, gaz, température intérieure et extérieure, …) et fournissent des données depuis 2015. Plusieurs cycles de saisons sont exploitables. Des méthodes de Data Mining, y compris l'approche de Clustering, ont été utilisées pour extraire des informations à partir des mesures en 2015 et 2016. Les résultats de la classification des données ont permis de mettre en évidence des jours de fonctionnement rares en exploitant les résultats de la classification des données.}, note = {ACTN}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {inproceedings} } Les gestionnaires de parc équipent de plus en plus leurs bâtiments avec de nombreux capteurs. L’analyse des données issues de ces mesures reste pourtant compliquée et se limite souvent à la définition de seuils d’alerte. Cet article vise à développer une méthodologie d’analyse basée sur l’élaboration d’indicateurs statistiques. Leur suivi pourra permettre de détecter des évolutions de comportement ou de performance des systèmes. La mise en évidence automatisée d’anomalies de fonctionnement pourra déclencher des alertes. Notre première approche se concentre sur le traitement de données issues de collèges gérés par le département de Pas de Calais. 117 bâtiments de collège sont instrumentés avec différents capteurs (eau, électricité, gaz, température intérieure et extérieure, …) et fournissent des données depuis 2015. Plusieurs cycles de saisons sont exploitables. Des méthodes de Data Mining, y compris l'approche de Clustering, ont été utilisées pour extraire des informations à partir des mesures en 2015 et 2016. Les résultats de la classification des données ont permis de mettre en évidence des jours de fonctionnement rares en exploitant les résultats de la classification des données. |
Auteurs : Asfour Sarah; Tittelein Pierre; Zalewski Laurent Dynamic study efficiency of the use of phase change materials integrated on the ceiling of a community hall 12th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning (PCM 2018)Orford, Quebec, Canada, @inproceedings{asfour_dynamic_2018, title = {Dynamic study efficiency of the use of phase change materials integrated on the ceiling of a community hall}, author = {Sarah Asfour and Pierre Tittelein and Laurent Zalewski}, year = {2018}, date = {2018-05-01}, booktitle = {12th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning (PCM 2018)}, address = {Orford, Quebec, Canada}, abstract = {In this article, we study the influence of the insertion of a phase change materials (PCMs) in the ceiling of a community hall on its comfort during the summer period. This study was realized using a dynamic thermal simulation of the building using a modelica library (BuildSysPro). Initially, we have defined materials used for the building including the characteristics of the phase change material used (thermal conductivity, melting temperature, specific heat capacity, latent heat and density). We have tested two configurations: insertion of a layer of PCM mortar and incorporation of PCM in rock wool ceiling tiles. We study the influence of the over-ventilation during night on these two cases. By comparing the simulation results during summer, we have noticed that the over-ventilation during night has a significant influence in reducing the inner temperature of the building. The insertion of PCM in a layer of ceiling tiles didn’t have a significant efficiency contrary to the insertion of a layer of PCM mortar. Secondly, we have optimized the PCM characteristics in order to achieve more comfort during summer.}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {inproceedings} } In this article, we study the influence of the insertion of a phase change materials (PCMs) in the ceiling of a community hall on its comfort during the summer period. This study was realized using a dynamic thermal simulation of the building using a modelica library (BuildSysPro). Initially, we have defined materials used for the building including the characteristics of the phase change material used (thermal conductivity, melting temperature, specific heat capacity, latent heat and density). We have tested two configurations: insertion of a layer of PCM mortar and incorporation of PCM in rock wool ceiling tiles. We study the influence of the over-ventilation during night on these two cases. By comparing the simulation results during summer, we have noticed that the over-ventilation during night has a significant influence in reducing the inner temperature of the building. The insertion of PCM in a layer of ceiling tiles didn’t have a significant efficiency contrary to the insertion of a layer of PCM mortar. Secondly, we have optimized the PCM characteristics in order to achieve more comfort during summer. |
Auteurs : Leang Enghok; Tittelein Pierre; Zalewski Laurent; Lassue Stéphane Impact de l’utilisation d’un mur solaire composite intégrant des matériaux à changement de phase sur le comportement thermique d’une maison individuelle Journée nationale sur l'énergie solaireVilleurbanne, Rhône, France, @inproceedings{leang_impact_2018, title = {Impact de l’utilisation d’un mur solaire composite intégrant des matériaux à changement de phase sur le comportement thermique d’une maison individuelle}, author = {Enghok Leang and Pierre Tittelein and Laurent Zalewski and Stéphane Lassue}, year = {2018}, date = {2018-06-01}, booktitle = {Journée nationale sur l'énergie solaire}, address = {Villeurbanne, Rhône, France}, abstract = {Avec la forte réduction des besoins de chauffage des bâtiments, l’utilisation de murs solaires prend tout son sens. L’un des freins à leur développement réside dans le fait qu’ils doivent être réalisés sur chantier par des entreprises spécialisées à cause du mur stockeur qui est en maçonnerie. Pour éviter ce problème et permettre de construire des murs solaires préfabriqués en usine, on peut imaginer de remplacer le mur en maçonnerie par un mur plus léger intégrant des matériaux à changement de phase (MCP). On cherchera dans cette étude à montrer l’impact de l’utilisation d’un mur solaire intégrant des MCP sur le comportement thermique d’une maison individuelle et la réduction des consommations énergétiques. Le matériau utilisé pour le mur dans une première approche est un mortier intégrant des microbilles commerciales de MCP. On cherchera ensuite à optimiser les caractéristiques de ce MCP pour réduire au maximum les besoins de chauffage du logement.}, note = {COM}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {inproceedings} } Avec la forte réduction des besoins de chauffage des bâtiments, l’utilisation de murs solaires prend tout son sens. L’un des freins à leur développement réside dans le fait qu’ils doivent être réalisés sur chantier par des entreprises spécialisées à cause du mur stockeur qui est en maçonnerie. Pour éviter ce problème et permettre de construire des murs solaires préfabriqués en usine, on peut imaginer de remplacer le mur en maçonnerie par un mur plus léger intégrant des matériaux à changement de phase (MCP). On cherchera dans cette étude à montrer l’impact de l’utilisation d’un mur solaire intégrant des MCP sur le comportement thermique d’une maison individuelle et la réduction des consommations énergétiques. Le matériau utilisé pour le mur dans une première approche est un mortier intégrant des microbilles commerciales de MCP. On cherchera ensuite à optimiser les caractéristiques de ce MCP pour réduire au maximum les besoins de chauffage du logement. |
Auteurs : Alhaik Ghaith; Dubois Vincent; Wirquin Eric; Leblanc Alexandre; Aouad Georges Construction and Building Materials, 186, pp. 762 - 7721ISSN: 0950-0618 @article{ALHAIK2018762, title = {Evaluate the influence of starch on earth/hemp or flax straws mixtures properties in presence of superplasticizer}, author = {Ghaith Alhaik and Vincent Dubois and Eric Wirquin and Alexandre Leblanc and Georges Aouad}, url = {http://www.sciencedirect.com/science/article/pii/S095006181831883X}, doi = {https://doi.org/10.1016/j.conbuildmat.2018.07.209}, issn = {0950-0618}, year = {2018}, date = {2018-01-01}, journal = {Construction and Building Materials}, volume = {186}, pages = {762 - 772}, abstract = {In this paper, we study the influence of two types of starch on earth hemp or flax straw mixtures at fresh and hardened states. The main goal is to propose new non-load bearing earthen for indoor. The mass percentage of starch/binder (S/B) in mixtures was fixed at 1% of mass. The VEBE consistometer test has been used to fix a similar consistency between mixtures. The targeted workability has to allow an easy introduction of materials in the moulds. Adding both of starch has shown a positive effect on mixtures workability at the fresh state and mechanical resistances at the hardened state. At hardened state, mechanical and thermal-acoustic performances have been measured on laboratory samples and blocks at real scale. Results have shown a significant effect of starch on mechanical strengths.}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } In this paper, we study the influence of two types of starch on earth hemp or flax straw mixtures at fresh and hardened states. The main goal is to propose new non-load bearing earthen for indoor. The mass percentage of starch/binder (S/B) in mixtures was fixed at 1% of mass. The VEBE consistometer test has been used to fix a similar consistency between mixtures. The targeted workability has to allow an easy introduction of materials in the moulds. Adding both of starch has shown a positive effect on mixtures workability at the fresh state and mechanical resistances at the hardened state. At hardened state, mechanical and thermal-acoustic performances have been measured on laboratory samples and blocks at real scale. Results have shown a significant effect of starch on mechanical strengths. |
Auteurs : Dubois Vincent; Leblanc Alexandre; Carpentier Olivier; Alhaik G; Wirquin Eric Performances of flax shive-based lightweight composites with rapid hardening Construction and Building Materials, 165, pp. 17 - 271ISSN: 0950-0618 @article{DUBOIS201817, title = {Performances of flax shive-based lightweight composites with rapid hardening}, author = {Vincent Dubois and Alexandre Leblanc and Olivier Carpentier and G Alhaik and Eric Wirquin}, url = {http://www.sciencedirect.com/science/article/pii/S0950061817326442}, doi = {https://doi.org/10.1016/j.conbuildmat.2017.12.239}, issn = {0950-0618}, year = {2018}, date = {2018-01-01}, journal = {Construction and Building Materials}, volume = {165}, pages = {17 - 27}, abstract = {This research work aims to develop a rapid hardening lightweight composite including flax shives, foaming agent and earthern materials. The results show a satisfying workability just after the mixing step and a rapid hardening of about less than thirty minutes. The mixes with a large amount of flax shives show a thermal conductivity inferior to 0.1 W.m−1.K−1 and porous-like acoustic absorption coefficients. Even if the mechanical performances are low (fc28days = 0.1–1 MPa), the developed mixes, in association with a structural material, can be used with advantage the 3D printing technique.}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } This research work aims to develop a rapid hardening lightweight composite including flax shives, foaming agent and earthern materials. The results show a satisfying workability just after the mixing step and a rapid hardening of about less than thirty minutes. The mixes with a large amount of flax shives show a thermal conductivity inferior to 0.1 W.m−1.K−1 and porous-like acoustic absorption coefficients. Even if the mechanical performances are low (fc28days = 0.1–1 MPa), the developed mixes, in association with a structural material, can be used with advantage the 3D printing technique. |
Auteurs : Sghiouri Haitham; Mezrhab Ahmed; Karkri Mustapha; Naji Hassane J. Building Engineering, 18, pp. 292 - 3021ISSN: 2352-7102 @article{SGHIOURI2018292, title = {Shading devices optimization to enhance thermal comfort and energy performance of a residential building in Morocco}, author = {Haitham Sghiouri and Ahmed Mezrhab and Mustapha Karkri and Hassane Naji}, url = {http://www.sciencedirect.com/science/article/pii/S2352710217306605}, doi = {https://doi.org/10.1016/j.jobe.2018.03.018}, issn = {2352-7102}, year = {2018}, date = {2018-01-01}, journal = {J. Building Engineering}, volume = {18}, pages = {292 - 302}, abstract = {Morocco's building sector accounts for about 25% of the country's total energy consumption, including 18% for residential and 7% for the services sector. This energy consumption is expected to raise due to the significant rise of household equipment rate in HVAC facilities mainly air-conditioners. This work presents a methodology combining single-objective optimization and building energy simulation, applied to the study of the effect of optimized overhangs, aimed at improving thermal comfort of a typical two-storey Moroccan existing building in three different climates of Marrakech, Casablanca and Oujda. The optimization has been performed using the non-dominated sorting genetic algorithm (NSGA-II). Optimal and benchmark cases are compared regarding the percentage of annual discomfort, cooling demand and heating demand. The results show that the thermal comfort is improved, and the optimized overhangs reduce the cooling demand by 4.1% for Casablanca's mediterranean climate, which exhibits no contradiction between improvements in thermal comfort and performance.}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } Morocco's building sector accounts for about 25% of the country's total energy consumption, including 18% for residential and 7% for the services sector. This energy consumption is expected to raise due to the significant rise of household equipment rate in HVAC facilities mainly air-conditioners. This work presents a methodology combining single-objective optimization and building energy simulation, applied to the study of the effect of optimized overhangs, aimed at improving thermal comfort of a typical two-storey Moroccan existing building in three different climates of Marrakech, Casablanca and Oujda. The optimization has been performed using the non-dominated sorting genetic algorithm (NSGA-II). Optimal and benchmark cases are compared regarding the percentage of annual discomfort, cooling demand and heating demand. The results show that the thermal comfort is improved, and the optimized overhangs reduce the cooling demand by 4.1% for Casablanca's mediterranean climate, which exhibits no contradiction between improvements in thermal comfort and performance. |
Auteurs : Koufi Lounes; Cherif Yassine; Younsi Zohir; Naji Hassane Heat Transfer Eng., 0(0), pp. 1-181 @article{doi:10.1080/01457632.2018.1460928, title = {Double-Diffusive Natural Convection in a Mixture-Filled Cavity with Walls' Opposite Temperatures and Concentrations}, author = {Lounes Koufi and Yassine Cherif and Zohir Younsi and Hassane Naji}, url = {https://doi.org/10.1080/01457632.2018.1460928}, doi = {10.1080/01457632.2018.1460928}, year = {2018}, date = {2018-01-01}, journal = {Heat Transfer Eng.}, volume = {0}, number = {0}, pages = {1-18}, publisher = {Taylor & Francis}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Yehya Alissar; Naji Hassane Progress in Computational Fluid Dynamics, 18(5), pp. 289-2991 @article{doi:10.1504/PCFD.2018.094618, title = {Towards the simulation of supercooling and convection in phase change materials using a thermal lattice Boltzmann method}, author = {Alissar Yehya and Hassane Naji}, url = {https://www.inderscienceonline.com/doi/abs/10.1504/PCFD.2018.094618}, doi = {10.1504/PCFD.2018.094618}, year = {2018}, date = {2018-01-01}, journal = {Progress in Computational Fluid Dynamics}, volume = {18}, number = {5}, pages = {289-299}, abstract = {The use of phase-change materials (PCM) in building materials is becoming increasingly used in the building sector. However, the presence of certain phenomena such as convection and supercooling may affect the fusion times and, consequently, the design of PCMs. Supercooling can have a noteworthy impact on the system performance. Moreover, convection alters the shape of the phase-front and should also be taken into account. Thereby, we propose here a thermal lattice Boltzmann model (TLBM) to simulate the phase-change problem with convection and supercooling. The numerical findings show that convection and supercooling phenomena are successfully taken into consideration. In addition, where appropriate, supercooling results exhibit a delay for the propagation of the solid-liquid interface. This proves that consideration of such a phenomenon in numerical modelling remains paramount for better design of PCM design.}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } The use of phase-change materials (PCM) in building materials is becoming increasingly used in the building sector. However, the presence of certain phenomena such as convection and supercooling may affect the fusion times and, consequently, the design of PCMs. Supercooling can have a noteworthy impact on the system performance. Moreover, convection alters the shape of the phase-front and should also be taken into account. Thereby, we propose here a thermal lattice Boltzmann model (TLBM) to simulate the phase-change problem with convection and supercooling. The numerical findings show that convection and supercooling phenomena are successfully taken into consideration. In addition, where appropriate, supercooling results exhibit a delay for the propagation of the solid-liquid interface. This proves that consideration of such a phenomenon in numerical modelling remains paramount for better design of PCM design. |
Auteurs : Younsi Zohir; Naji Hassane Thermal Science, ISSN: 0354-9836 @article{doi:10.2298/TSCI180302207Y, title = {Numerical assessment of brick walls' use incorporating a PCM towards thermal performance in buildings during a passive cooling strategy}, author = {Zohir Younsi and Hassane Naji}, url = {http://thermalscience.vinca.rs}, doi = {https://doi.org/10.2298/TSCI180302207Y}, issn = {0354-9836}, year = {2018}, date = {2018-01-01}, journal = {Thermal Science}, abstract = {The integration of new building materials incorporating phase change material (PCM) into the building envelope leads to an increase of the heat storage capacity, which may have an influence on minimizing the cooling demand and heating of the building. This work addresses a thermal performance enhancement of brick walls with incorporated PCMs. The improvement has been assessed through a numerical approach in dealing with a one-dimensional transient conduction problem with phase change, while leaning on experimental results from a transient guarded hot plates method. The simulations have been fulfilled using a hybrid method combining both the finite volume method (FVM) and an enthalpy porosity technique. The results of this combined approach are in good agreement. In the light of the findings obtained, it appears that PCMs' incorporation into a brick masonry can both reduce peak temperatures up to 3°C and smooth out daily fluctuations. Thereby, the evaluation achieved can turns out useful in developing brick walls with an incorporated PCM for passive cooling, thus improving buildings' thermal performance.}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } The integration of new building materials incorporating phase change material (PCM) into the building envelope leads to an increase of the heat storage capacity, which may have an influence on minimizing the cooling demand and heating of the building. This work addresses a thermal performance enhancement of brick walls with incorporated PCMs. The improvement has been assessed through a numerical approach in dealing with a one-dimensional transient conduction problem with phase change, while leaning on experimental results from a transient guarded hot plates method. The simulations have been fulfilled using a hybrid method combining both the finite volume method (FVM) and an enthalpy porosity technique. The results of this combined approach are in good agreement. In the light of the findings obtained, it appears that PCMs' incorporation into a brick masonry can both reduce peak temperatures up to 3°C and smooth out daily fluctuations. Thereby, the evaluation achieved can turns out useful in developing brick walls with an incorporated PCM for passive cooling, thus improving buildings' thermal performance. |
Auteurs : Braikia Mohamed; Khelil Ali; Naji Hassane; Loukarfi Larbi An experimental investigation of interacting swirling multiple jets Thermal Science, ISSN: 0354-9836 @article{doi:10.2298/TSCI180604247B, title = {An experimental investigation of interacting swirling multiple jets}, author = {Mohamed Braikia and Ali Khelil and Hassane Naji and Larbi Loukarfi}, url = {http://thermalscience.vinca.rs}, doi = {https://doi.org/10.2298/TSCI180604247B}, issn = {0354-9836}, year = {2018}, date = {2018-01-01}, journal = {Thermal Science}, abstract = {This article deals with the experimental investigation of multiple interacting jets, which may be interested in many engineering applications such as design of a ventilation supply device. The main objective of this study is to achieve the best configuration for use in ventilation applications. To achieve this, several parameters have been considered and discussed such as the imbalance in temperature and diffuser orifices position with relative imbalance in flow rate between central and peripheral jets. Flow rate has been adjusted at Reynolds numbers Re0, ranging from 104 to 3.104. The present study is carried out under uniform heat flux condition for each diffuser, and air is used as a working fluid. Experiences concerning the fusion of several jets show that the resulting jet is clearly more homogenized under the influence of the central swirling jet. Highlights of such an investigation show that, if the relative position of the central jet is higher, the radial spreading of the resultant jet is more important when all jets are in the same plane. This spreading is also improved compared to the case where the relative position of the peripheral jets is higher, thereby allowing to process a large volume of air. In addition, it becomes attractive to operate, especially when we aim premises homogenization.}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } This article deals with the experimental investigation of multiple interacting jets, which may be interested in many engineering applications such as design of a ventilation supply device. The main objective of this study is to achieve the best configuration for use in ventilation applications. To achieve this, several parameters have been considered and discussed such as the imbalance in temperature and diffuser orifices position with relative imbalance in flow rate between central and peripheral jets. Flow rate has been adjusted at Reynolds numbers Re0, ranging from 104 to 3.104. The present study is carried out under uniform heat flux condition for each diffuser, and air is used as a working fluid. Experiences concerning the fusion of several jets show that the resulting jet is clearly more homogenized under the influence of the central swirling jet. Highlights of such an investigation show that, if the relative position of the central jet is higher, the radial spreading of the resultant jet is more important when all jets are in the same plane. This spreading is also improved compared to the case where the relative position of the peripheral jets is higher, thereby allowing to process a large volume of air. In addition, it becomes attractive to operate, especially when we aim premises homogenization. |
Auteurs : Koufi Lounes; Younsi Zohir; Naji Hassane Int. J. Ventilation, 0(0), pp. 1-181 @article{doi:10.1080/14733315.2018.1431359, title = {Computational of the wind velocity effect on infiltration rates in an individual building using multi-zone airflow model}, author = {Lounes Koufi and Zohir Younsi and Hassane Naji}, url = {https://doi.org/10.1080/14733315.2018.1431359}, doi = {10.1080/14733315.2018.1431359}, year = {2018}, date = {2018-01-01}, journal = {Int. J. Ventilation}, volume = {0}, number = {0}, pages = {1-18}, publisher = {Taylor & Francis}, abstract = {This paper presents and discusses numerical simulation of the wind velocity's effect on infiltration rates in an individual building using multi-zone modelling. The governing equations are expressed in terms of unknown pressures at points where flow paths connect. Their implementation was achieved using an advanced numerical model, which was developed via the MATLAB environment. Such a numerical approach has been validated through available results. A good agreement has been observed between available data and our study's results. Moreover, the model implemented allows to determine the reference pressure in each zone to compute the air infiltration rate by each connection. To perform this, a large range of input data is needed. These include leakage characteristics of airflow elements, wind pressure coefficients, and ventilation system characteristics. To sum up, it is found that the wind velocity increase produces a strongly variation on computed infiltration rates.}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } This paper presents and discusses numerical simulation of the wind velocity's effect on infiltration rates in an individual building using multi-zone modelling. The governing equations are expressed in terms of unknown pressures at points where flow paths connect. Their implementation was achieved using an advanced numerical model, which was developed via the MATLAB environment. Such a numerical approach has been validated through available results. A good agreement has been observed between available data and our study's results. Moreover, the model implemented allows to determine the reference pressure in each zone to compute the air infiltration rate by each connection. To perform this, a large range of input data is needed. These include leakage characteristics of airflow elements, wind pressure coefficients, and ventilation system characteristics. To sum up, it is found that the wind velocity increase produces a strongly variation on computed infiltration rates. |
Auteurs : Bennia Abderazak; larbi Loukarfi; Khelil Ali; Mohamadi Said; Braikia Mohamed; Naji Hassane Mechanics & Industry, 19(1), pp. 1041 @article{refId0b, title = {Experimental and numerical investigation of a turbulent lobed diffuser jet: application to residential comfort}, author = {Abderazak Bennia and larbi Loukarfi and Ali Khelil and Said Mohamadi and Mohamed Braikia and Hassane Naji}, url = {https://doi.org/10.1051/meca/2016078}, doi = {10.1051/meca/2016078}, year = {2018}, date = {2018-01-01}, journal = {Mechanics & Industry}, volume = {19}, number = {1}, pages = {104}, abstract = {In this work, we present an experimental and numerical study of a turbulent jet from a lobed diffuser, applied to residential comfort. The main aim is the improvement of the air diffusion efficiency, of the ventilation driving flow in the occupancy zone, with least cost. The experiments have been conducted in a room where the dimensions enable a better execution in the conditions of free and hot vertical jet at unfavorable pushing forces. The room has been isolated from the environment during experiments. The temperature difference between the jet and the environment has been controlled by readjusting the blowing jet temperature. Consequently, the jet's Archimedes number is kept constant during tests. The installation includes a hot air blowing diffuser oriented from top to bottom. The temperatures and velocities of the flow have been measured by a multi-functional thermo-anemometer. The probe is supported by a stem that is guided vertically and horizontally in order to sweep a maximum space. The numerical study has been carried out using the Fluent code (V.6). The numerical results obtained with the turbulence model (RNG k-ε) turned out to be in a good accordance with the experimental results.}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } In this work, we present an experimental and numerical study of a turbulent jet from a lobed diffuser, applied to residential comfort. The main aim is the improvement of the air diffusion efficiency, of the ventilation driving flow in the occupancy zone, with least cost. The experiments have been conducted in a room where the dimensions enable a better execution in the conditions of free and hot vertical jet at unfavorable pushing forces. The room has been isolated from the environment during experiments. The temperature difference between the jet and the environment has been controlled by readjusting the blowing jet temperature. Consequently, the jet's Archimedes number is kept constant during tests. The installation includes a hot air blowing diffuser oriented from top to bottom. The temperatures and velocities of the flow have been measured by a multi-functional thermo-anemometer. The probe is supported by a stem that is guided vertically and horizontally in order to sweep a maximum space. The numerical study has been carried out using the Fluent code (V.6). The numerical results obtained with the turbulence model (RNG k-ε) turned out to be in a good accordance with the experimental results. |
Auteurs : Qabbal Loubna; Younsi Zohir; Naji Hassane Indoor air quality investigation in a ventilated demonstrator building via a smart sensor 39th AIVC conference - Smart ventilation for BuildingsAIVC AIVC, Antibes Juan - les-Pins, France, @conference{Qabba2018a, title = {Indoor air quality investigation in a ventilated demonstrator building via a smart sensor}, author = {Loubna Qabbal and Zohir Younsi and Hassane Naji}, year = {2018}, date = {2018-09-01}, booktitle = {39th AIVC conference - Smart ventilation for Buildings}, publisher = {AIVC}, address = {Antibes Juan - les-Pins, France}, organization = {AIVC}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Qabbal Loubna; Labat Lucille; Naji Hassane; Younsi Zohir; Talon Sabrina Numerical and experimental identfcaton of factors influencing the pressure homogeneity during an airtghtness test in a large building 39th AIVC conference - Smart ventilation for BuildingsAIVC AIVC, Antibes Juan - les-Pins, France, @conference{Qabba2018b, title = {Numerical and experimental identfcaton of factors influencing the pressure homogeneity during an airtghtness test in a large building}, author = {Loubna Qabbal and Lucille Labat and Hassane Naji and Zohir Younsi and Sabrina Talon}, year = {2018}, date = {2018-09-01}, booktitle = {39th AIVC conference - Smart ventilation for Buildings}, publisher = {AIVC}, address = {Antibes Juan - les-Pins, France}, organization = {AIVC}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Qabbal Loubna; Younsi Zohir; Naji Hassane Indoor Air Quality measurements in a tertially building vai a smart sensor connected toa Raspberry card: Apllication to a demonstrator building Int. Conference on Sustainability in Energy and Buildings (SEB-18)http://seb-18.kesinternational.org/ KES International, @conference{Qabba2018c, title = {Indoor Air Quality measurements in a tertially building vai a smart sensor connected toa Raspberry card: Apllication to a demonstrator building}, author = {Loubna Qabbal and Zohir Younsi and Hassane Naji}, year = {2018}, date = {2018-06-01}, booktitle = {Int. Conference on Sustainability in Energy and Buildings (SEB-18)}, publisher = {KES International}, organization = {http://seb-18.kesinternational.org/}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Qabbal Loubna; Younsi Zohir; Naji Hassane Towards measuring indoor air quality and hygrothermal comfort with a smart sensor”, “Measurements of indoor air quality (IAQ) and hygrothermal comfort by a smart sensor Int. Symposium, Individual Air Sensors: Innovation or revolution?Appa & PC2A Univ. Lille http://lille2018.appa.asso.fr/, Lille, France., @conference{Qabba2018d, title = {Towards measuring indoor air quality and hygrothermal comfort with a smart sensor”, “Measurements of indoor air quality (IAQ) and hygrothermal comfort by a smart sensor}, author = {Loubna Qabbal and Zohir Younsi and Hassane Naji}, year = {2018}, date = {2018-11-01}, booktitle = {Int. Symposium, Individual Air Sensors: Innovation or revolution?}, publisher = {http://lille2018.appa.asso.fr/}, address = {Lille, France.}, organization = {Appa & PC2A Univ. Lille}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Beaupere Noé; Soupremanien U; Zalewski Laurent Nucleation triggering methods in supercooled phase change materials (PCM), a review Thermochimica Acta, ISSN: 0040-6031 @article{beaupere_nucleation_2018, title = {Nucleation triggering methods in supercooled phase change materials (PCM), a review}, author = {Noé Beaupere and U Soupremanien and Laurent Zalewski}, url = {http://www.sciencedirect.com/science/article/pii/S0040603118304544}, doi = {10.1016/j.tca.2018.10.009}, issn = {0040-6031}, year = {2018}, date = {2018-01-01}, urldate = {2018-10-15}, journal = {Thermochimica Acta}, abstract = {Supercooling is an undesired property of phase change materials due to the poorly predictable occurrence of crystallization during cooling. For such situations, the stored latent heat cannot be recovered which can be an issue for temperature-controlled applications. This review illustrates the techniques used for triggering crystallization in phase change materials having a supercooling property. The development of triggering devices should constitute a breakthrough for heat on demand applications, as heat can be released even when the temperature drops far below the liquidus temperature. Several techniques appear to be promising for nucleation triggering. They have been classified into two categories: passive (reduction of supercooling) or active (triggering of crystallization on demand) devices. They were accurately investigated for water freezing for: meteorological comprehension, food preservation or the pharmaceutical industry. In this paper, several nucleating agents (passive) have been explored, and most of them, added by 1 wt%, can decrease the supercooling degree by more than 90%. In addition, the heat would be immediately released on demand from a supercooled material by the use of seeding or electrofreezing (active methods). Solidification can also be externally triggered by the application of high pressure or ultrasonic waves (active). In addition to the analysis of the efficiency of the different techniques in terms of supercooling reduction, this review also discusses the solidification process at a microscopic scale.}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } Supercooling is an undesired property of phase change materials due to the poorly predictable occurrence of crystallization during cooling. For such situations, the stored latent heat cannot be recovered which can be an issue for temperature-controlled applications. This review illustrates the techniques used for triggering crystallization in phase change materials having a supercooling property. The development of triggering devices should constitute a breakthrough for heat on demand applications, as heat can be released even when the temperature drops far below the liquidus temperature. Several techniques appear to be promising for nucleation triggering. They have been classified into two categories: passive (reduction of supercooling) or active (triggering of crystallization on demand) devices. They were accurately investigated for water freezing for: meteorological comprehension, food preservation or the pharmaceutical industry. In this paper, several nucleating agents (passive) have been explored, and most of them, added by 1 wt%, can decrease the supercooling degree by more than 90%. In addition, the heat would be immediately released on demand from a supercooled material by the use of seeding or electrofreezing (active methods). Solidification can also be externally triggered by the application of high pressure or ultrasonic waves (active). In addition to the analysis of the efficiency of the different techniques in terms of supercooling reduction, this review also discusses the solidification process at a microscopic scale. |
Auteurs : Lomaglio Tonia; Hattab-Hambli Nour; Miard Florie; Lebrun Manhattan; Nandillon Romain; Trupiano Dalila; Scippa Gabriella-Stefania; Gauthier Arnaud; Motelica-Heino Mikael; Bourgerie Sylvain; Morabito Domenico Cd, Pb, and Zn mobility and (bio)availability in contaminated soils from a former smelting site amended with biochar Environmental Science and Pollution Research, @article{Lomaglio2018, title = {Cd, Pb, and Zn mobility and (bio)availability in contaminated soils from a former smelting site amended with biochar}, author = {Tonia Lomaglio and Nour Hattab-Hambli and Florie Miard and Manhattan Lebrun and Romain Nandillon and Dalila Trupiano and Gabriella-Stefania Scippa and Arnaud Gauthier and Mikael Motelica-Heino and Sylvain Bourgerie and Domenico Morabito}, year = {2018}, date = {2018-01-01}, journal = {Environmental Science and Pollution Research}, abstract = {Biochar is a potential candidate for the remediation of metal(loid)-contaminated soils. However, the mechanisms of contaminant-biochar retention and release depend on the amount of soil contaminants and physicochemical characteristics, as well as the durability of the biochar contaminant complex, which may be related to the pyrolysis process parameters. The objective of the present study was to evaluate, in a former contaminated smelting site, the impact of two doses of wood biochar (2 and 5% w/w) on metal immobilization and/or phytoavailability and their effectiveness in promoting plant growth in mesocosm experiments. Different soil mixtures were investigated. The main physicochemical parameters and the Cd, Pb, and Zn contents were determined in soil and in soil pore water. Additionally, the growth, dry weight, and metal concentrations were analyzed in the different dwarf bean plant (Phaseolus vulgaris L.) organs tested. Results showed that the addition of biochar at two doses (2 and 5%) improved soil conditions by increasing soil pH, electrical conductivity, and water holding capacity. Furthermore, the application of biochar (5%) to metal-contaminated soil reduced Cd, Pb, and Zn mobility and availability, and hence their accumulation in the different P. vulgaris L. organs. In conclusion, the data clearly demonstrated that biochar application can be effectively used for Cd, Pb, and Zn immobilization, thereby reducing their bioavailability and phytotoxicity.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Biochar is a potential candidate for the remediation of metal(loid)-contaminated soils. However, the mechanisms of contaminant-biochar retention and release depend on the amount of soil contaminants and physicochemical characteristics, as well as the durability of the biochar contaminant complex, which may be related to the pyrolysis process parameters. The objective of the present study was to evaluate, in a former contaminated smelting site, the impact of two doses of wood biochar (2 and 5% w/w) on metal immobilization and/or phytoavailability and their effectiveness in promoting plant growth in mesocosm experiments. Different soil mixtures were investigated. The main physicochemical parameters and the Cd, Pb, and Zn contents were determined in soil and in soil pore water. Additionally, the growth, dry weight, and metal concentrations were analyzed in the different dwarf bean plant (Phaseolus vulgaris L.) organs tested. Results showed that the addition of biochar at two doses (2 and 5%) improved soil conditions by increasing soil pH, electrical conductivity, and water holding capacity. Furthermore, the application of biochar (5%) to metal-contaminated soil reduced Cd, Pb, and Zn mobility and availability, and hence their accumulation in the different P. vulgaris L. organs. In conclusion, the data clearly demonstrated that biochar application can be effectively used for Cd, Pb, and Zn immobilization, thereby reducing their bioavailability and phytotoxicity. |
Auteurs : Beaupere Noé; Soupremanien Ulrich; ZALEWSKI Laurent Solidification monitoring of supercooled phase change materials 12th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning (PCM 2018)Orford (Québec), Canada, @inproceedings{beaupere_solidification_2018, title = {Solidification monitoring of supercooled phase change materials}, author = {Noé Beaupere and Ulrich Soupremanien and Laurent ZALEWSKI}, doi = {10.18462/iir.pcm.2018.0022}, year = {2018}, date = {2018-01-01}, booktitle = {12th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning (PCM 2018)}, volume = {PAPER ID: 0022}, address = {Orford (Québec), Canada}, abstract = {Salt hydrates are often used as heat storage materials according to their interesting thermal properties (high latent and specific heat). Their main drawback is their large supercooling, where the material may remain liquid below its melting point. However, this property should be turned into a benefit if a reliable way of triggering crystallization is developed, as heat could be released on demand. Sodium Acetate Trihydrate (SAT, CH3COONa.3H2O), which can exhibit 90K of supercooling, was used for this study. For a better understanding of how heat is released after crystallization triggering, caused by seeding, a fully new method was developed to measure the samples’ opacification, using a HeNe laser (633 nm) coupled with a photodetector, measuring the solid fraction thanks to the difference between liquid and solid specular transmittance. This technique was compared with temperature measurement and image processing, showing consistency between the different methods.}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {inproceedings} } Salt hydrates are often used as heat storage materials according to their interesting thermal properties (high latent and specific heat). Their main drawback is their large supercooling, where the material may remain liquid below its melting point. However, this property should be turned into a benefit if a reliable way of triggering crystallization is developed, as heat could be released on demand. Sodium Acetate Trihydrate (SAT, CH3COONa.3H2O), which can exhibit 90K of supercooling, was used for this study. For a better understanding of how heat is released after crystallization triggering, caused by seeding, a fully new method was developed to measure the samples’ opacification, using a HeNe laser (633 nm) coupled with a photodetector, measuring the solid fraction thanks to the difference between liquid and solid specular transmittance. This technique was compared with temperature measurement and image processing, showing consistency between the different methods. |
Auteurs : Chabannes Morgan; Garcia-Diaz Eric; Clerc Laurent; Bénézet Jean-Charles; Becquart Frédéric Lime-Hemp and Rice Husk-Based Concretes for Building Envelopes Springer International Publishing, @book{CHAB2018O, title = {Lime-Hemp and Rice Husk-Based Concretes for Building Envelopes}, author = {Morgan Chabannes and Eric Garcia-Diaz and Laurent Clerc and Jean-Charles Bénézet and Frédéric Becquart}, year = {2018}, date = {2018-01-01}, publisher = {Springer International Publishing}, note = {OS}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {book} } |
Auteurs : Lors Christine; Ponge Jean-François; Damidot Denis Environmental hazard assessment by the Ecoscore system to discriminate PAH-polluted soils Environmental Science and Pollution Research, @article{Lors2018, title = {Environmental hazard assessment by the Ecoscore system to discriminate PAH-polluted soils}, author = {Christine Lors and Jean-François Ponge and Denis Damidot}, year = {2018}, date = {2018-01-01}, journal = {Environmental Science and Pollution Research}, abstract = {A bioassay battery-integrated index was applied to different soils sampled from a former coke factory, with the aim to evaluate the discriminating capacity of the Ecoscore system (ES) to assess the environmental hazard of PAH-polluted soils. Two soils from a former coke factory, polluted with polycyclic aromatic hydrocarbons (PAHs), were evaluated for their ecotoxicity to terrestrial and aquatic organisms and their genotoxicity. These soils have been already presented in a previous paper but data have been reanalyzed for the present article in an endeavor to standardize the ES. One soil was sampled in the untreated site and the second underwent a windrow treatment. While these soils had a similar total concentrations of US-EPA 16PAHs (around 3000 mg kg−1), different ecoscores were obtained when subjected to a set of solid- and liquid-phase bioassays measuring acute, chronic, and genotoxic effects. The total PAH content of the soil is not a pertinent parameter to assess soil pollution hazards contrary to the ES. ES is a robust method to classify soils according to their toxicity level. Four levels of toxicity have been defined: no (ecoscore = 0), weak (0 < ecoscore ≤33), moderate (33 < ecoscore ≤67), and strong toxicity (67 < ecoscore ≤ 100). The combination of chemical and toxicological data highlights the relationship between three-ring PAHs and acute ecotoxicity. Conversely, chronic effects of water extracts on algal growth could be explained by high molecular weight PAHs, such as five- and six-ring PAHs.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } A bioassay battery-integrated index was applied to different soils sampled from a former coke factory, with the aim to evaluate the discriminating capacity of the Ecoscore system (ES) to assess the environmental hazard of PAH-polluted soils. Two soils from a former coke factory, polluted with polycyclic aromatic hydrocarbons (PAHs), were evaluated for their ecotoxicity to terrestrial and aquatic organisms and their genotoxicity. These soils have been already presented in a previous paper but data have been reanalyzed for the present article in an endeavor to standardize the ES. One soil was sampled in the untreated site and the second underwent a windrow treatment. While these soils had a similar total concentrations of US-EPA 16PAHs (around 3000 mg kg−1), different ecoscores were obtained when subjected to a set of solid- and liquid-phase bioassays measuring acute, chronic, and genotoxic effects. The total PAH content of the soil is not a pertinent parameter to assess soil pollution hazards contrary to the ES. ES is a robust method to classify soils according to their toxicity level. Four levels of toxicity have been defined: no (ecoscore = 0), weak (0 < ecoscore ≤33), moderate (33 < ecoscore ≤67), and strong toxicity (67 < ecoscore ≤ 100). The combination of chemical and toxicological data highlights the relationship between three-ring PAHs and acute ecotoxicity. Conversely, chronic effects of water extracts on algal growth could be explained by high molecular weight PAHs, such as five- and six-ring PAHs. |
Auteurs : Lors Christine; Ponge Jean-François; Damidot Denis Microscopy in addition to chemical analyses and ecotoxicological assays for the environmental hazard assessment of coal tar-polluted soils Environmental Science and Pollution Research, 25(3), pp. 2594-26021 @article{Lors2018a, title = {Microscopy in addition to chemical analyses and ecotoxicological assays for the environmental hazard assessment of coal tar-polluted soils}, author = {Christine Lors and Jean-François Ponge and Denis Damidot}, year = {2018}, date = {2018-01-01}, journal = {Environmental Science and Pollution Research}, volume = {25}, number = {3}, pages = {2594-2602}, abstract = {Chemical analysis of soils contaminated with coal tar indicated that most organic compounds, and particularly PAHs, were contained in coarser particles (> 200 μm). Microscopic observations of this fraction, carried out on polished sections, reported the presence of organic particles in addition to mineral particles. Some organic particles had a very low porosity, and their microstructure did not evolve during biotreatment. Alternatively, other organic particles had a large porosity composed of an interconnected pore network that was open to coal tar surface and thus in contact with soil water. Interconnected porosity seemed to increase during biotreatment in relation to adecrease in the amount of organic compounds. The amount of open porosity in contact with soil water was expected to increase the desorption rate of PAHs. Consequently, the environmental hazard could depend on the amount of open porosity in addition to chemical properties of organic particles, such as their concentration in PAHs. Thus, microscopy can be complementary to chemical analysis and ecotoxicological assays to assess the best strategy for remediation but also to follow the advancement of a biotreatment.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Chemical analysis of soils contaminated with coal tar indicated that most organic compounds, and particularly PAHs, were contained in coarser particles (> 200 μm). Microscopic observations of this fraction, carried out on polished sections, reported the presence of organic particles in addition to mineral particles. Some organic particles had a very low porosity, and their microstructure did not evolve during biotreatment. Alternatively, other organic particles had a large porosity composed of an interconnected pore network that was open to coal tar surface and thus in contact with soil water. Interconnected porosity seemed to increase during biotreatment in relation to adecrease in the amount of organic compounds. The amount of open porosity in contact with soil water was expected to increase the desorption rate of PAHs. Consequently, the environmental hazard could depend on the amount of open porosity in addition to chemical properties of organic particles, such as their concentration in PAHs. Thus, microscopy can be complementary to chemical analysis and ecotoxicological assays to assess the best strategy for remediation but also to follow the advancement of a biotreatment. |
Auteurs : Chaâbene Zayneb; Rekik-Hakim Imen; Rorat Agnieszka; Elleuch Amine; Mejdoub Hafedh; Vandenbulcke Franck Copper toxicity and date palm (Phoenix dactylifera) seedling tolerance: Monitoring of related biomarker Environmental Toxicology and Chemistry, Article in Press. DOI: 10.1002/etc.4007, @article{Chaabene2018, title = {Copper toxicity and date palm (Phoenix dactylifera) seedling tolerance: Monitoring of related biomarker}, author = {Zayneb Chaâbene and Imen Rekik-Hakim and Agnieszka Rorat and Amine Elleuch and Hafedh Mejdoub and Franck Vandenbulcke}, year = {2018}, date = {2018-01-01}, journal = {Environmental Toxicology and Chemistry}, volume = {Article in Press. DOI: 10.1002/etc.4007}, abstract = {Date palm (Phoenix dactylifera) seeds were exposed to different copper (Cu) solutions to examine plant stress responses. Low Cu concentrations (0.02 and 0.2 mM) caused an increase of seed germination, whereas higher Cu amounts (2 mM) significantly inhibited seed germination, delayed hypocotyl elongation, increased seedling mortality, and reduced the germination index by more than 90%. Metal-related toxicity symptoms appeared after 15 d of 2 mM of Cu exposure. Biochemical activities such as amylase activity and redox balance elements were examined to study the relationship between external Cu amount and internal plant response. The present study showed that amylolytic activity was dose- and time-dependent. Likewise, H2 O2 production increased after exposure to Cu, which was correlated with thiobarbituric acid reactive substance (TBARS) accumulation. Furthermore at low Cu concentrations, superoxide dismutase (SOD) and catalase (CAT) activities increased, suggesting that date palm seed stimulated its metal homeostasis networks. However, the highest cupric ion amounts increased cell oxidant accumulation and reduced enzyme production. Gene expression level measures of P. dactylifera phytochelatin synthase (Pdpcs) and P. dactylifera metallothionein (Pdmt) encoding genes have been carried out to investigate the implication of PdPCS and PdMT proteins in Cu homeostasis and/or its sequestration. Phoenix dactylifera metallothionein induction reached a peak after 30 d of exposure to 0.2 mM of Cu. However, it was down-regulated in plants exposed to higher Cu concentrations. In the same conditions, Pdpcs was overexpressed during 1 mo of exposure before it decreased thereafter. These observations provide a new insight into date palm cell response to Cu, a metal that can be toxic but that is also an essential element.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Date palm (Phoenix dactylifera) seeds were exposed to different copper (Cu) solutions to examine plant stress responses. Low Cu concentrations (0.02 and 0.2 mM) caused an increase of seed germination, whereas higher Cu amounts (2 mM) significantly inhibited seed germination, delayed hypocotyl elongation, increased seedling mortality, and reduced the germination index by more than 90%. Metal-related toxicity symptoms appeared after 15 d of 2 mM of Cu exposure. Biochemical activities such as amylase activity and redox balance elements were examined to study the relationship between external Cu amount and internal plant response. The present study showed that amylolytic activity was dose- and time-dependent. Likewise, H2 O2 production increased after exposure to Cu, which was correlated with thiobarbituric acid reactive substance (TBARS) accumulation. Furthermore at low Cu concentrations, superoxide dismutase (SOD) and catalase (CAT) activities increased, suggesting that date palm seed stimulated its metal homeostasis networks. However, the highest cupric ion amounts increased cell oxidant accumulation and reduced enzyme production. Gene expression level measures of P. dactylifera phytochelatin synthase (Pdpcs) and P. dactylifera metallothionein (Pdmt) encoding genes have been carried out to investigate the implication of PdPCS and PdMT proteins in Cu homeostasis and/or its sequestration. Phoenix dactylifera metallothionein induction reached a peak after 30 d of exposure to 0.2 mM of Cu. However, it was down-regulated in plants exposed to higher Cu concentrations. In the same conditions, Pdpcs was overexpressed during 1 mo of exposure before it decreased thereafter. These observations provide a new insight into date palm cell response to Cu, a metal that can be toxic but that is also an essential element. |
Auteurs : Chaâbene Zayneb; Rorat Agnieszka; Rekik-Hakim Imen; Bernard Fabien; Douglas Grubb-C.; Elleuch Amine; Vandenbulcke Franck; Mejdoub Hafedh Insight into the expression variation of metal-responsive genes in the seedling of date palm (Phoenix dactylifera) Chemosphere, 197, pp. 123-1341 @article{Chaabene2018a, title = {Insight into the expression variation of metal-responsive genes in the seedling of date palm (Phoenix dactylifera)}, author = {Zayneb Chaâbene and Agnieszka Rorat and Imen Rekik-Hakim and Fabien Bernard and Grubb-C. Douglas and Amine Elleuch and Franck Vandenbulcke and Hafedh Mejdoub}, year = {2018}, date = {2018-01-01}, journal = {Chemosphere}, volume = {197}, pages = {123-134}, abstract = {Phytochelatin synthase and metallothionein gene expressions were monitored via qPCR in order to investigate the molecular mechanisms involved in Cd and Cr detoxification in date palm (Phoenix dactylifera). A specific reference gene validation procedure using BestKeeper, NormFinder and geNorm programs allowed selection of the three most stable reference genes in a context of Cd or Cr contamination among six reference gene candidates, namely elongation factor α1, actin, aldehyde dehydrogenase, SAND family, tubulin 6 and TaTa box binding protein. Phytochelatin synthase (pcs) and metallothionein (mt) encoding gene expression were induced from the first days of exposure. At low Cd stress (0.02mM), genes were still up- regulated until 60th day of exposure. At the highest metal concentrations, however, pcs and mt gene expressions decreased. pcs encoding gene was significantly up-regulated under Cr exposure, and was more responsive to increasing Cr concentration than mt encoding gene. Moreover, exposure to Cd or Cr influenced clearly seed germination and hypocotyls elongation. Thus, the results have proved that both analyzed genes participate in metal detoxification and their expression is regulated at transcriptional level in date palm subjected to Cr and Cd stress. Consequently, variations of expression of mt and pcs genes may serve as early-warning biomarkers of metal stress in this species.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Phytochelatin synthase and metallothionein gene expressions were monitored via qPCR in order to investigate the molecular mechanisms involved in Cd and Cr detoxification in date palm (Phoenix dactylifera). A specific reference gene validation procedure using BestKeeper, NormFinder and geNorm programs allowed selection of the three most stable reference genes in a context of Cd or Cr contamination among six reference gene candidates, namely elongation factor α1, actin, aldehyde dehydrogenase, SAND family, tubulin 6 and TaTa box binding protein. Phytochelatin synthase (pcs) and metallothionein (mt) encoding gene expression were induced from the first days of exposure. At low Cd stress (0.02mM), genes were still up- regulated until 60th day of exposure. At the highest metal concentrations, however, pcs and mt gene expressions decreased. pcs encoding gene was significantly up-regulated under Cr exposure, and was more responsive to increasing Cr concentration than mt encoding gene. Moreover, exposure to Cd or Cr influenced clearly seed germination and hypocotyls elongation. Thus, the results have proved that both analyzed genes participate in metal detoxification and their expression is regulated at transcriptional level in date palm subjected to Cr and Cd stress. Consequently, variations of expression of mt and pcs genes may serve as early-warning biomarkers of metal stress in this species. |
Auteurs : Sassine Emilio; Younsi Zohir; Cherif Yassine; Antczak Emmanuel Frequency domain regression method to predict thermal behavior of brick wall of existing buildings Applied Thermal Engineering, 114, pp. 24 - 351ISSN: 1359-4311 @article{Sassine201724, title = {Frequency domain regression method to predict thermal behavior of brick wall of existing buildings}, author = {Emilio Sassine and Zohir Younsi and Yassine Cherif and Emmanuel Antczak}, url = {https://www-sciencedirect-com.bibliopam.univ-catholille.fr/science/article/pii/S135943111633469X}, doi = {https://doi.org/10.1016/j.applthermaleng.2016.11.134}, issn = {1359-4311}, year = {2017}, date = {2017-01-01}, journal = {Applied Thermal Engineering}, volume = {114}, pages = {24 - 35}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Vanhée Benoît; Salmon Sandrine; Devigne Cédric; Leprêtre Alain; Deharveng Louis; Ponge Jean-François The ‘terril’ effect: Coal mine spoil tips select for collembolan functional traits in post-mining landscapes of northern France Applied Soil Ecology, 121, pp. 90-1011 @article{Vanhee2017, title = {The ‘terril’ effect: Coal mine spoil tips select for collembolan functional traits in post-mining landscapes of northern France}, author = {Benoît Vanhée and Sandrine Salmon and Cédric Devigne and Alain Leprêtre and Louis Deharveng and Jean-François Ponge}, year = {2017}, date = {2017-01-01}, journal = {Applied Soil Ecology}, volume = {121}, pages = {90-101}, abstract = {We sampled collembolan communities in 11 coal mine spoil tips (locally called ‘terrils’) from the north of france, and their surroundings, in various stages of vegetation development (bare soil, herb, shrub and tree vegetation). we wondered whether species, functional trait (community weighted mean trait or cwm) composition and trait diversity (rao’s quadratic entropy) responded to the particular environment of coal mine spoil tips (here called ‘terril’ effect) and to successional effects and which of these three sets was the best indicator of soil and vegetation effects, taking into account that spoil tips were spatially distant and idiosyncratic (e.g. varying in height, area, past history and surrounding environment). we showed that species, but not traits, were strongly influenced by site effects, while traits were influenced by both ‘terril’ and successional effects to a significant extent, making traits more robust than species when trying to discern patterns of community response to soil and vegetation changes. functional diversity did not show any significant multi-trait response to either ‘terril’ or successional effects, but several functional traits showed an increase in diversity with succession. the overall response of trait diversity was intermediate between species and trait responses. the ‘terril’ effect was mainly mediated by a coarser soil texture (51% coarse sand compared to 14% in the surrounding environment) which, combined with harsher microclimate conditions, stems in a better representation of functional traits linked to subterranean life, such as shorter body length and increased representation of parthenogenesis. successional effects (in particular the increase in diversity shown by several functional traits varying with vertical distribution) were mediated by the increasing development of organic horizons but other factors like microclimate were seemingly involved, too. more generally this study showed that shift to subterranean life was an adapted response of collembolan communities to harshness of the environment and that vertically stratified ecosystems allow a more complete expression of their functional diversity.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } We sampled collembolan communities in 11 coal mine spoil tips (locally called ‘terrils’) from the north of france, and their surroundings, in various stages of vegetation development (bare soil, herb, shrub and tree vegetation). we wondered whether species, functional trait (community weighted mean trait or cwm) composition and trait diversity (rao’s quadratic entropy) responded to the particular environment of coal mine spoil tips (here called ‘terril’ effect) and to successional effects and which of these three sets was the best indicator of soil and vegetation effects, taking into account that spoil tips were spatially distant and idiosyncratic (e.g. varying in height, area, past history and surrounding environment). we showed that species, but not traits, were strongly influenced by site effects, while traits were influenced by both ‘terril’ and successional effects to a significant extent, making traits more robust than species when trying to discern patterns of community response to soil and vegetation changes. functional diversity did not show any significant multi-trait response to either ‘terril’ or successional effects, but several functional traits showed an increase in diversity with succession. the overall response of trait diversity was intermediate between species and trait responses. the ‘terril’ effect was mainly mediated by a coarser soil texture (51% coarse sand compared to 14% in the surrounding environment) which, combined with harsher microclimate conditions, stems in a better representation of functional traits linked to subterranean life, such as shorter body length and increased representation of parthenogenesis. successional effects (in particular the increase in diversity shown by several functional traits varying with vertical distribution) were mediated by the increasing development of organic horizons but other factors like microclimate were seemingly involved, too. more generally this study showed that shift to subterranean life was an adapted response of collembolan communities to harshness of the environment and that vertically stratified ecosystems allow a more complete expression of their functional diversity. |
Auteurs : Courtois Pauline; Rorat Agnieszka; Lemière Sébastien; Vandenbulcke Franck Sewage sludge, silver nanoparticles and terrestrial environments: state of the art and involved work International Conference of Environmental Biotechnology, 12th December 2017, Czestochowa (Poland) @conference{Courtois2017, title = {Sewage sludge, silver nanoparticles and terrestrial environments: state of the art and involved work}, author = {Pauline Courtois and Agnieszka Rorat and Sébastien Lemière and Franck Vandenbulcke}, year = {2017}, date = {2017-01-01}, booktitle = {International Conference of Environmental Biotechnology, 12th December 2017, Czestochowa (Poland)}, abstract = {The fast increase of the global population, urbanization, industrialization and the improvement of technologies used in wastewater treatment plant have led to a strong increase of the production of sewage sludge. because of the high organic matter and nutrients content, sewage sludge can be applied as a fertilizer, but some contaminants shall be strictly monitored. in europe, legislation focused on: seven metal trace elements (cadmium, chromium, copper, mercury, nickel, lead and zinc) and organic traces compounds (7 polychlobiphenyls and 3 polycyclic aromatic hydrocarbons (fluoranthene, benzo(b)fluoranthene and benzo(a)pyrene)). still, some potentially dangerous contaminants, e.g. silver nanoparticles are not regulated at present. due to their biocidal properties, silver nanoparticles are among the most frequently used nanomaterials (in more of 300 products and production estimated around 500 tons per year). releases in the environment through wastewater treatment plants, linked to the life cycle of products containing nano-silver, can cause a contamination of ecosystem and ecotoxicological and/or health effects [1]. many research aimed on the assessment of the risks and dangers associated with the use of silver, nano-silver and their derivatives on organisms and ecosystems. recent works have shown that the nano-silver 1) decrease the diversity and the quantity of soil microorganisms [2], 2) are accumulated in plant and animal tissues [3,4] and 3) cause biological effects on studied organisms. nevertheless, the understanding of their effects on the terrestrial ecosystem is still incomplete and many questions subsist. this work aims on the effects of the nano-silver toxicity in terrestrial environment, mainly throught its effects on organisms living in close contact with soil, to characterize it and to understand its mechanisms of action on organisms. references [1] anses, 2015. avis de l’agence nationale de sécurité sanitaire de l’alimentation, de l’environnement et du travail. [2] schlich k.et hund-rinke, k., 2015. influence of soil properties on the effect of silver nanomaterials on microbial activity in five soils. environmental pollution. 196, 321–330. [3] colman b.p., arnaout c.l., anciaux s., gunsch c.k., hochella jr m.f., kim b., lowry g.v., mcgill b.m., reinsch b.c., c.j. richardson, unrine j.m., wright j.p., yin l. et bernhardt e.s. 2013. low concentrations of silver nanoparticles in biosolids cause adverse ecosystem responses under realistic field scenario. plos one 8(2): e57189. doi: 10.1371/journal.pone.0057189 [4] shoults-wilson, w.a., reinsch, b.c., tsyusko, o.v., bertsch, p.m., lowry, g.v., unrine, j.m., 2011. effect of silver nanoparticle surface coating on bioaccumulation and reproductive toxicity in earthworms ( eisenia fetida ). nanotoxicology 5, 432–444.}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } The fast increase of the global population, urbanization, industrialization and the improvement of technologies used in wastewater treatment plant have led to a strong increase of the production of sewage sludge. because of the high organic matter and nutrients content, sewage sludge can be applied as a fertilizer, but some contaminants shall be strictly monitored. in europe, legislation focused on: seven metal trace elements (cadmium, chromium, copper, mercury, nickel, lead and zinc) and organic traces compounds (7 polychlobiphenyls and 3 polycyclic aromatic hydrocarbons (fluoranthene, benzo(b)fluoranthene and benzo(a)pyrene)). still, some potentially dangerous contaminants, e.g. silver nanoparticles are not regulated at present. due to their biocidal properties, silver nanoparticles are among the most frequently used nanomaterials (in more of 300 products and production estimated around 500 tons per year). releases in the environment through wastewater treatment plants, linked to the life cycle of products containing nano-silver, can cause a contamination of ecosystem and ecotoxicological and/or health effects [1]. many research aimed on the assessment of the risks and dangers associated with the use of silver, nano-silver and their derivatives on organisms and ecosystems. recent works have shown that the nano-silver 1) decrease the diversity and the quantity of soil microorganisms [2], 2) are accumulated in plant and animal tissues [3,4] and 3) cause biological effects on studied organisms. nevertheless, the understanding of their effects on the terrestrial ecosystem is still incomplete and many questions subsist. this work aims on the effects of the nano-silver toxicity in terrestrial environment, mainly throught its effects on organisms living in close contact with soil, to characterize it and to understand its mechanisms of action on organisms. references [1] anses, 2015. avis de l’agence nationale de sécurité sanitaire de l’alimentation, de l’environnement et du travail. [2] schlich k.et hund-rinke, k., 2015. influence of soil properties on the effect of silver nanomaterials on microbial activity in five soils. environmental pollution. 196, 321–330. [3] colman b.p., arnaout c.l., anciaux s., gunsch c.k., hochella jr m.f., kim b., lowry g.v., mcgill b.m., reinsch b.c., c.j. richardson, unrine j.m., wright j.p., yin l. et bernhardt e.s. 2013. low concentrations of silver nanoparticles in biosolids cause adverse ecosystem responses under realistic field scenario. plos one 8(2): e57189. doi: 10.1371/journal.pone.0057189 [4] shoults-wilson, w.a., reinsch, b.c., tsyusko, o.v., bertsch, p.m., lowry, g.v., unrine, j.m., 2011. effect of silver nanoparticle surface coating on bioaccumulation and reproductive toxicity in earthworms ( eisenia fetida ). nanotoxicology 5, 432–444. |
Auteurs : Younsi Zohir; Naji Hassane Simulation numérique du comportement thermique d’un mur de brique intégrant des microcapsules de matériaux à changement de phase via la méthode enthalpique Congrès Français de Thermique 2017, Marseille, France, 30 mai - 2 juin 2017. @conference{Younsi2017, title = {Simulation numérique du comportement thermique d’un mur de brique intégrant des microcapsules de matériaux à changement de phase via la méthode enthalpique}, author = {Zohir Younsi and Hassane Naji}, year = {2017}, date = {2017-01-01}, booktitle = {Congrès Français de Thermique 2017, Marseille, France, 30 mai - 2 juin 2017.}, note = {ACTN}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Brue Flore; Davy Catherine; Burlion Nicolas; Skoczylas Frederic; Bourbon Xavier Five year drying of high performance concretes: Effect of temperature and cement-type on shrinkage Cement and Concrete Research, 99, pp. 70 - 851ISSN: 0008-8846 @article{BRUE201770, title = {Five year drying of high performance concretes: Effect of temperature and cement-type on shrinkage}, author = {Flore Brue and Catherine Davy and Nicolas Burlion and Frederic Skoczylas and Xavier Bourbon}, url = {http://www.sciencedirect.com/science/article/pii/S0008884617304428}, doi = {https://doi.org/10.1016/j.cemconres.2017.04.017}, issn = {0008-8846}, year = {2017}, date = {2017-01-01}, journal = {Cement and Concrete Research}, volume = {99}, pages = {70 - 85}, abstract = {This experimental study imposes limited relative humidity (RH) gradients to small mature concrete samples, at a constant temperature T = 20, 50 or 80°C. Mass loss and shrinkage are recorded until stabilization at each RH and T, for up to 1991days. Firstly, our mass loss data are consistent with those presented in former research (on different samples of the same batch). After presenting and analyzing shrinkage kinetics, experimental data are fitted with usual models for shrinkage prediction, at each temperature of 20, 50 and 80°C. An adequate match is obtained by combining capillarity (i.e. Vlahinic's model coupling poro-elastic constants and water saturation level) and desorption (Bangham's equation). Subsequently, relative mass variation (RMV) is plotted against shrinkage εshdry data. Three distinct phases are obtained at 20 or 50°C and down to 30%RH; up to four distinct phases are observed at T = 80°C and down to 12%RH. The latter are confirmed by experiments on (60°C; 7%RH) dried concrete. The four phases in the (RMV,εshdry) diagram are interpreted against shrinkage data on mature cement paste dried at 60°C; 7%RH and against the literature.}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } This experimental study imposes limited relative humidity (RH) gradients to small mature concrete samples, at a constant temperature T = 20, 50 or 80°C. Mass loss and shrinkage are recorded until stabilization at each RH and T, for up to 1991days. Firstly, our mass loss data are consistent with those presented in former research (on different samples of the same batch). After presenting and analyzing shrinkage kinetics, experimental data are fitted with usual models for shrinkage prediction, at each temperature of 20, 50 and 80°C. An adequate match is obtained by combining capillarity (i.e. Vlahinic's model coupling poro-elastic constants and water saturation level) and desorption (Bangham's equation). Subsequently, relative mass variation (RMV) is plotted against shrinkage εshdry data. Three distinct phases are obtained at 20 or 50°C and down to 30%RH; up to four distinct phases are observed at T = 80°C and down to 12%RH. The latter are confirmed by experiments on (60°C; 7%RH) dried concrete. The four phases in the (RMV,εshdry) diagram are interpreted against shrinkage data on mature cement paste dried at 60°C; 7%RH and against the literature. |
Auteurs : Crognier Nemo; Hoareau Guilhem; Aubourg Charles; Dubois Michel; Lacroix Brice; Branellec Mathieu; Callot Jean-Paul; Vennemann Torsten Syn-orogenic fluid flow in the Jaca basin (South Pyrenean Fold and Thrust Belt) from fracture and vein analyses European Geosciences Union, General Assembly 2017, 23-28 April 2017, Vienna (Australie) @conference{Crognier2017, title = {Syn-orogenic fluid flow in the Jaca basin (South Pyrenean Fold and Thrust Belt) from fracture and vein analyses}, author = {Nemo Crognier and Guilhem Hoareau and Charles Aubourg and Michel Dubois and Brice Lacroix and Mathieu Branellec and Jean-Paul Callot and Torsten Vennemann}, year = {2017}, date = {2017-01-01}, booktitle = {European Geosciences Union, General Assembly 2017, 23-28 April 2017, Vienna (Australie)}, abstract = {This study aims at understanding the origin and nature of syn-orogenic fluid flow in the jaca basin from the south pyrenean fold and thrust-belt, recorded in calcite and quartz veins of the sierras interiores (spain) and the turbiditic basin, which cover upper cretaceous to late eocene syntectonic deposits. the fracture network consists of a classical pattern of transverse and longitudinal fractures with respect to folds, that we propose to be related to layer parallel shortening (lps) and folding respectively. veins filled equally about the third of fractures in the carbonate shelf and turbidites. carbon and oxygen isotopes of calcite veins mostly indicate precipitation from isotopically buffered water, consistent with high water-rock interaction. in the sierras interiores, petrographical observations and fluid inclusion microthermometry are consistent with two distinct stages of precipitation. the first stage is characterized by relatively low th and low salinities (155-205◦ c and 0.5-3.2 wt% eq. nacl respectively). the second stage, characterized both by the formation of mode-i joints and by mode-i reactivation of preexisting veins, shows higher th and salinities (215-270◦c and 2.2-5.7 wt% eq. nacl respectively). low salinities recorded during the first stage suggest dilution of marine water by fresh water expelled by the smectite to illite transformation at t < 200◦c. waters recorded in the second stage are interpreted to have interacted with underlying triassic evaporites and flowed along major thrusts before vein precipitation, which are locally in thermal disequilibrium with hostrocks. we suggest the transition from a rather closed hydrological system during the first stage of vein formation, interpreted to have occurred during eaux-chaudes thrusting (upper lutetian-bartonian), to a more open hydrological system during the second stage, which likely occurred during gavarnie thrusting (priabonian-early rupelian). this evolution exhibits many similarities with other fold-and-thrust belts, except in the limited involvement of meteoric water. finally, we also document the migration in space and time of hydrothermal pulses along the south pyrenean foreland basin, related to the westward propagation of major thrusts during the pyrenean orogeny}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } This study aims at understanding the origin and nature of syn-orogenic fluid flow in the jaca basin from the south pyrenean fold and thrust-belt, recorded in calcite and quartz veins of the sierras interiores (spain) and the turbiditic basin, which cover upper cretaceous to late eocene syntectonic deposits. the fracture network consists of a classical pattern of transverse and longitudinal fractures with respect to folds, that we propose to be related to layer parallel shortening (lps) and folding respectively. veins filled equally about the third of fractures in the carbonate shelf and turbidites. carbon and oxygen isotopes of calcite veins mostly indicate precipitation from isotopically buffered water, consistent with high water-rock interaction. in the sierras interiores, petrographical observations and fluid inclusion microthermometry are consistent with two distinct stages of precipitation. the first stage is characterized by relatively low th and low salinities (155-205◦ c and 0.5-3.2 wt% eq. nacl respectively). the second stage, characterized both by the formation of mode-i joints and by mode-i reactivation of preexisting veins, shows higher th and salinities (215-270◦c and 2.2-5.7 wt% eq. nacl respectively). low salinities recorded during the first stage suggest dilution of marine water by fresh water expelled by the smectite to illite transformation at t < 200◦c. waters recorded in the second stage are interpreted to have interacted with underlying triassic evaporites and flowed along major thrusts before vein precipitation, which are locally in thermal disequilibrium with hostrocks. we suggest the transition from a rather closed hydrological system during the first stage of vein formation, interpreted to have occurred during eaux-chaudes thrusting (upper lutetian-bartonian), to a more open hydrological system during the second stage, which likely occurred during gavarnie thrusting (priabonian-early rupelian). this evolution exhibits many similarities with other fold-and-thrust belts, except in the limited involvement of meteoric water. finally, we also document the migration in space and time of hydrothermal pulses along the south pyrenean foreland basin, related to the westward propagation of major thrusts during the pyrenean orogeny |
Auteurs : Antczak Emmanuel; Asli Mounir; Brachelet Franck; Brue Flore; Defer Didier Etude du comportement hygrothermique d’anas de lin utilisés comme isolant en vrac de combles perdus Conférence Francophone de l'International Building Performance Simulation Association99, ISSN: 0008-8846 @conference{ANTC2018I, title = {Etude du comportement hygrothermique d’anas de lin utilisés comme isolant en vrac de combles perdus}, author = {Emmanuel Antczak and Mounir Asli and Franck Brachelet and Flore Brue and Didier Defer}, url = {http://www.sciencedirect.com/science/article/pii/S0008884617304428}, doi = {https://doi.org/10.1016/j.cemconres.2017.04.017}, issn = {0008-8846}, year = {2017}, date = {2017-01-01}, booktitle = {Conférence Francophone de l'International Building Performance Simulation Association}, journal = {Cement and Concrete Research}, volume = {99}, pages = {70 - 85}, abstract = {This experimental study imposes limited relative humidity (RH) gradients to small mature concrete samples, at a constant temperature T = 20, 50 or 80°C. Mass loss and shrinkage are recorded until stabilization at each RH and T, for up to 1991days. Firstly, our mass loss data are consistent with those presented in former research (on different samples of the same batch). After presenting and analyzing shrinkage kinetics, experimental data are fitted with usual models for shrinkage prediction, at each temperature of 20, 50 and 80°C. An adequate match is obtained by combining capillarity (i.e. Vlahinic's model coupling poro-elastic constants and water saturation level) and desorption (Bangham's equation). Subsequently, relative mass variation (RMV) is plotted against shrinkage εshdry data. Three distinct phases are obtained at 20 or 50°C and down to 30%RH; up to four distinct phases are observed at T = 80°C and down to 12%RH. The latter are confirmed by experiments on (60°C; 7%RH) dried concrete. The four phases in the (RMV,εshdry) diagram are interpreted against shrinkage data on mature cement paste dried at 60°C; 7%RH and against the literature.}, note = {AFF}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } This experimental study imposes limited relative humidity (RH) gradients to small mature concrete samples, at a constant temperature T = 20, 50 or 80°C. Mass loss and shrinkage are recorded until stabilization at each RH and T, for up to 1991days. Firstly, our mass loss data are consistent with those presented in former research (on different samples of the same batch). After presenting and analyzing shrinkage kinetics, experimental data are fitted with usual models for shrinkage prediction, at each temperature of 20, 50 and 80°C. An adequate match is obtained by combining capillarity (i.e. Vlahinic's model coupling poro-elastic constants and water saturation level) and desorption (Bangham's equation). Subsequently, relative mass variation (RMV) is plotted against shrinkage εshdry data. Three distinct phases are obtained at 20 or 50°C and down to 30%RH; up to four distinct phases are observed at T = 80°C and down to 12%RH. The latter are confirmed by experiments on (60°C; 7%RH) dried concrete. The four phases in the (RMV,εshdry) diagram are interpreted against shrinkage data on mature cement paste dried at 60°C; 7%RH and against the literature. |
Auteurs : Belkacem Nafissa; Loukarfi Larbi; Missoum Mohamed; Naji Hassane; Khelil Ali; Braikia Mohammed Assessment of energy and environmental performances of a bioclimatic dwelling in Algeria's North Building Services Engineering Research & Technology, 38(1), pp. 64-681 @article{Belkacem2017, title = {Assessment of energy and environmental performances of a bioclimatic dwelling in Algeria's North}, author = {Nafissa Belkacem and Larbi Loukarfi and Mohamed Missoum and Hassane Naji and Ali Khelil and Mohammed Braikia}, doi = {https://doi.org/10.1177/0143624416669554}, year = {2017}, date = {2017-01-01}, journal = {Building Services Engineering Research & Technology}, volume = {38}, number = {1}, pages = {64-68}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Bouaricha Leyla; Henni Djeferanni; Lancelot Laurent Studia Geotechnica et Mechanica, 39(4), pp. 3-151 @article{Bouaricha20173, title = {A Laboratory Investigation on Shear Strength Behavior of Sandy Soil: Effect of Glass Fiber and Clinker Residue Content}, author = {Leyla Bouaricha and Djeferanni Henni and Laurent Lancelot}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85042697650&doi=10.1515%2fsgem-2017-0032&partnerID=40&md5=d1279484386c0898ee8da8e7be0807fd}, doi = {10.1515/sgem-2017-0032}, year = {2017}, date = {2017-01-01}, journal = {Studia Geotechnica et Mechanica}, volume = {39}, number = {4}, pages = {3-15}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Mengue Emmanuel; Mroueh Hussein; Lancelot Laurent; Eko Robert Medjo Journal of Materials in Civil Engineering, 29(11), @article{Mengue2017, title = {Mechanical improvement of a fine-grained lateritic soil treated with cement for use in road construction}, author = {Emmanuel Mengue and Hussein Mroueh and Laurent Lancelot and Robert Medjo Eko}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026471296&doi=10.1061%2f%28ASCE%29MT.1943-5533.0002059&partnerID=40&md5=d6ca6e05161da764be05558c0a766551}, doi = {10.1061/(ASCE)MT.1943-5533.0002059}, year = {2017}, date = {2017-01-01}, journal = {Journal of Materials in Civil Engineering}, volume = {29}, number = {11}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Muchembled Jérôme; Deweer Caroline; Gelin D; Brehault L; Sahmer Karin; Halama Patrice Comparaison in vitro de l’efficacité d’huiles essentielles sur Venturia inaequalis et Phytophthora infestans 6ème conférence internationale sur les méthodes alternatives de protection des plantes, 21-23 mars 2017, Lille @conference{Muchembled2017, title = {Comparaison in vitro de l’efficacité d’huiles essentielles sur Venturia inaequalis et Phytophthora infestans}, author = {Jérôme Muchembled and Caroline Deweer and D Gelin and L Brehault and Karin Sahmer and Patrice Halama}, year = {2017}, date = {2017-01-01}, booktitle = {6ème conférence internationale sur les méthodes alternatives de protection des plantes, 21-23 mars 2017, Lille}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Mengue Emmanuel; Mroueh Hussein; Lancelot Laurent; Eko Robert Medjo Physicochemical and consolidation properties of compacted lateritic soil treated with cement Soils and Foundations, 57(1), pp. 60-791 @article{Mengue201760, title = {Physicochemical and consolidation properties of compacted lateritic soil treated with cement}, author = {Emmanuel Mengue and Hussein Mroueh and Laurent Lancelot and Robert Medjo Eko}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85012917387&doi=10.1016%2fj.sandf.2017.01.005&partnerID=40&md5=656d6a8cf21492521371dfdcbcc70292}, doi = {10.1016/j.sandf.2017.01.005}, year = {2017}, date = {2017-01-01}, journal = {Soils and Foundations}, volume = {57}, number = {1}, pages = {60-79}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Muchembled Jérôme; Deweer Caroline; Gelin D; Brehault L; Sahmer Karin; Halama Patrice Réponses spécifiques d’huiles essentielles sur 2 souches de Venturia inaequalis 6ème conférence internationale sur les méthodes alternatives de protection des plantes, 21-23 mars 2017, Lille @conference{Muchembled2017a, title = {Réponses spécifiques d’huiles essentielles sur 2 souches de Venturia inaequalis}, author = {Jérôme Muchembled and Caroline Deweer and D Gelin and L Brehault and Karin Sahmer and Patrice Halama}, year = {2017}, date = {2017-01-01}, booktitle = {6ème conférence internationale sur les méthodes alternatives de protection des plantes, 21-23 mars 2017, Lille}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Waterlot Christophe Green revolution in chemistry: existing and future challenges 4th French-Romanian Colloquium on Medicinal Chemistry, 5-7 October 2017, Iasi (Roumanie) @conference{Waterlot2017b, title = {Green revolution in chemistry: existing and future challenges}, author = {Christophe Waterlot}, year = {2017}, date = {2017-01-01}, booktitle = {4th French-Romanian Colloquium on Medicinal Chemistry, 5-7 October 2017, Iasi (Roumanie)}, note = {INV}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Cherif Yassine; Koufi Loune; Younsi Zohir; Naji Hassane Simulation numérique de la convection thermosoultale du transport d'un aéro-contaminant dans une chambre fermée 13ème Colloque Int. Franco-Québécois (CIFQ 2017), 22 - 24, 2017, Saint-Lô, France @conference{Cherif2017, title = {Simulation numérique de la convection thermosoultale du transport d'un aéro-contaminant dans une chambre fermée}, author = {Yassine Cherif and Loune Koufi and Zohir Younsi and Hassane Naji}, year = {2017}, date = {2017-01-01}, booktitle = {13ème Colloque Int. Franco-Québécois (CIFQ 2017), 22 - 24, 2017, Saint-Lô, France}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Messellek A C; Ouali Ould M; Benabid Y; Amrouche Abdelwaheb; Beloulla A Computer Methods in Biomechanics and Biomedical Engineering, 20, pp. 133-1341 @article{Messellek2017133, title = {Material selection process for femoral component of hip prosthesis using finite element analysis and ranking method}, author = {A C Messellek and M Ould Ouali and Y Benabid and Abdelwaheb Amrouche and A Beloulla}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85032685739&doi=10.1080%2f10255842.2017.1382897&partnerID=40&md5=550dc127b32fb0921a941b07084d3c54}, doi = {10.1080/10255842.2017.1382897}, year = {2017}, date = {2017-01-01}, journal = {Computer Methods in Biomechanics and Biomedical Engineering}, volume = {20}, pages = {133-134}, note = {cited By 0}, keywords = {Axe 1, ER3}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Alatorre N; Ambriz R R; Amrouche Abdelwaheb; García C; Jaramillo D Journal of Materials Processing Technology, 248, pp. 207-2171 @article{Alatorre2017207, title = {Fatigue crack growth in Al-Zn-Mg (7075-T651) welds obtained by modified indirect and gas metal arc welding techniques}, author = {N Alatorre and R R Ambriz and Abdelwaheb Amrouche and C García and D Jaramillo}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85020005705&doi=10.1016%2fj.jmatprotec.2017.05.025&partnerID=40&md5=d449e1b47b6ea6fbc6ac571cdc26d153}, doi = {10.1016/j.jmatprotec.2017.05.025}, year = {2017}, date = {2017-01-01}, journal = {Journal of Materials Processing Technology}, volume = {248}, pages = {207-217}, note = {cited By 1}, keywords = {Axe 1, ER3}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Murtaś Aneta; Hiller Joanna; Rorat Agnieszka; Grobelak Anna Bioaugmentation of degraded soils with Bacillus subtilis immobilized on biocarbon and perlite modified carriers The XXVI International Symposium “Molecular and Physiological Aspects of Regulatory Processes of the Organism, 16 September 2017, Kraków (Poland) @conference{Murtas2017, title = {Bioaugmentation of degraded soils with Bacillus subtilis immobilized on biocarbon and perlite modified carriers}, author = {Aneta Murtaś and Joanna Hiller and Agnieszka Rorat and Anna Grobelak}, year = {2017}, date = {2017-01-01}, booktitle = {The XXVI International Symposium “Molecular and Physiological Aspects of Regulatory Processes of the Organism, 16 September 2017, Kraków (Poland)}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Messellek A C; Ouali M O; Benabid Y; Amrouche Abdelwaheb; Beloulla A Computer Methods in Biomechanics and Biomedical Engineering, 20, pp. 131-1321 @article{Messellek2017131, title = {Design optimization and material selection of acetabular component of hip prosthesis using computational concepts}, author = {A C Messellek and M O Ouali and Y Benabid and Abdelwaheb Amrouche and A Beloulla}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85032656904&doi=10.1080%2f10255842.2017.1382896&partnerID=40&md5=3c7b152414e55e7b4e99d32aab30b296}, doi = {10.1080/10255842.2017.1382896}, year = {2017}, date = {2017-01-01}, journal = {Computer Methods in Biomechanics and Biomedical Engineering}, volume = {20}, pages = {131-132}, note = {cited By 0}, keywords = {Axe 1, ER3}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Murtaś Aneta; Jaskulak Marta; Rorat Agnieszka; Grobelak Anna; Chaâbene Zayneb; Kacprzak Małgorzata; Vandenbulcke Franck Expression of metallothionein coding gene in Festuca pratensis H. grown on artificially contaminated soils with silver nanoparticles or ionic silver SETAC North America 38th Annual Meeting, 12-16 November 2017, Minneapolis @conference{Murtas2017a, title = {Expression of metallothionein coding gene in Festuca pratensis H. grown on artificially contaminated soils with silver nanoparticles or ionic silver}, author = {Aneta Murtaś and Marta Jaskulak and Agnieszka Rorat and Anna Grobelak and Zayneb Chaâbene and Małgorzata Kacprzak and Franck Vandenbulcke}, year = {2017}, date = {2017-01-01}, booktitle = {SETAC North America 38th Annual Meeting, 12-16 November 2017, Minneapolis}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Waterlot Christophe; Douay Francis; Pelfrêne Aurélie Chemical availability of Cd, Pb and Zn in anthropogenically polluted soil: Assessing the geochemical reactivity and oral bioaccessibility Pedosphere, 27(3), pp. 616-6291 @article{Waterlot2017b, title = {Chemical availability of Cd, Pb and Zn in anthropogenically polluted soil: Assessing the geochemical reactivity and oral bioaccessibility}, author = {Christophe Waterlot and Francis Douay and Aurélie Pelfrêne}, year = {2017}, date = {2017-01-01}, journal = {Pedosphere}, volume = {27}, number = {3}, pages = {616-629}, abstract = {The most recent in vitro tests used to determine metal bioaccessiblility are generally time-consuming and expensive. this study aimed at determining potential relationships between the concentrations of metals extracted using single-extraction methods and the concentrations of bioaccessible metals assessed by a harmonised in vitro test, the unified barge method (ubm). a total number of 27 soil samples were collected from kitchen gardens and lawns with various physicochemical parameters and contamination levels. significant relationships were obtained between cd, pb and zn extracted in gastric and gastrointestinal phases and using single extractions. the best relationhips were established using acetic and citric acids for cd, whereas for pb, citric acid and ethylenediaminetetraacetic acid (edta) were identified as the best extractants. these relationships were improved by means of a linear multiple regression with a downward stepwise procedure involving agronomic parameters (soil cation exchange capacity and assimilated p). this method highlighted the fact that the cation exchange capacity and p contents in soils were the two main parameters that controlled the human bioaccessibility of cd, pb and zn in the gastric phase. besides, the metal concentrations extracted with the acetic and citric acids correlated well with the metal concentrations in the gastric and gastrointestinal phases, suggesting that the bioaccessible metals were mainly in a soluble form, weakly bound to the organic matter and associated with the carbonates and the fe and mn oxides/hydroxides in soils.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The most recent in vitro tests used to determine metal bioaccessiblility are generally time-consuming and expensive. this study aimed at determining potential relationships between the concentrations of metals extracted using single-extraction methods and the concentrations of bioaccessible metals assessed by a harmonised in vitro test, the unified barge method (ubm). a total number of 27 soil samples were collected from kitchen gardens and lawns with various physicochemical parameters and contamination levels. significant relationships were obtained between cd, pb and zn extracted in gastric and gastrointestinal phases and using single extractions. the best relationhips were established using acetic and citric acids for cd, whereas for pb, citric acid and ethylenediaminetetraacetic acid (edta) were identified as the best extractants. these relationships were improved by means of a linear multiple regression with a downward stepwise procedure involving agronomic parameters (soil cation exchange capacity and assimilated p). this method highlighted the fact that the cation exchange capacity and p contents in soils were the two main parameters that controlled the human bioaccessibility of cd, pb and zn in the gastric phase. besides, the metal concentrations extracted with the acetic and citric acids correlated well with the metal concentrations in the gastric and gastrointestinal phases, suggesting that the bioaccessible metals were mainly in a soluble form, weakly bound to the organic matter and associated with the carbonates and the fe and mn oxides/hydroxides in soils. |
Auteurs : Détriché Sébastien; Douay Francis Distribution spatiale et enrichissements en ETM dans les sols agricoles du Nord-Pas-de-Calais @book{Detriche2017, title = {Distribution spatiale et enrichissements en ETM dans les sols agricoles du Nord-Pas-de-Calais}, author = {Sébastien Détriché and Francis Douay}, year = {2017}, date = {2017-01-01}, booktitle = {Les cartes et les données pédologiques, des outils au service des territoires}, volume = {pp70-73, Educagri Editions}, note = {OV}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {book} } |
Auteurs : Nasraoui Mohamed; Dubois Michel; Zinbi Y; Rottier B; Misdariis N Relationship between magma and Cu-mineralization in Eastern Jbilet (Morocco) XXIVth European Current Research On Fluid Inclusions (ECROFI), 25-29 juin, Nancy @conference{Nasraoui2017, title = {Relationship between magma and Cu-mineralization in Eastern Jbilet (Morocco)}, author = {Mohamed Nasraoui and Michel Dubois and Y Zinbi and B Rottier and N Misdariis}, year = {2017}, date = {2017-01-01}, booktitle = {XXIVth European Current Research On Fluid Inclusions (ECROFI), 25-29 juin, Nancy}, abstract = {Copper hydrothermal vein deposits are orebodies formed by precipitation of metal sulphides from hydrothermal fluids released from cooling magmatic sources, eventually mixed with fluids of other sources. several processes are controlling the precipitation of cu-hosting minerals including fluid mixing, temperature, eh and ph changes. identifying new cu deposits in morocco is extremely essential for the country economy. however, the discovery of new deposits is limited by the lack of understanding of metallogenic processes involved in some districts like the one of eastern jbilet, the target of the present work. the eastern jbilet area, belonging to the moroccan hercynian belt, hosts numerous cu-mineralized veins. these veins are distributed over more than 20 km around the city of kelaa sraghna. up to now no genetic model of these cu-veins has been proposed for such deposits. veins hosting sulfide mineralization show multiphase precipitation process mainly of pyrite, chalcopyrite, with minor bornite, covellite, and chalcocite. gangue minerals are represented by quartz and carbonates including calcite, dolomite, ankerite and siderite. our recent field investigations show discreet occurrence of both volcanic and plutonic rocks. the present work focusses on the genetic relationship between cu-veins versus the local magmatism occurrences, and will discuss implications for spatial distribution of the mineralization. field work combining mapping/geophysical exploration and drilling campaign shows that the mineralization process could be linked to small appendices of plutonic rocks probably belonging to a large volcanic system (pillow-lava and basic dykes). a comparison of fluid inclusion results, performed on hydrothermal quartz coming from outcrops and shallow galleries (down to –77 m), provides evidence of ptx fluid signatures with temperature less than 200 °c, depth less than 4 km and high nacl (>20 %) content. no boiling process have been detected. from a genetic point of view copper could be transported as cl-complexes and the precipitation of sulfide-bearing minerals seems to be temperature and ph-dependent. these data suggest that the lateral and in-depth distribution of the mineralization could be linked to a large magmatic system and give key perspective for further exploration work in eastern jbilet.}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Copper hydrothermal vein deposits are orebodies formed by precipitation of metal sulphides from hydrothermal fluids released from cooling magmatic sources, eventually mixed with fluids of other sources. several processes are controlling the precipitation of cu-hosting minerals including fluid mixing, temperature, eh and ph changes. identifying new cu deposits in morocco is extremely essential for the country economy. however, the discovery of new deposits is limited by the lack of understanding of metallogenic processes involved in some districts like the one of eastern jbilet, the target of the present work. the eastern jbilet area, belonging to the moroccan hercynian belt, hosts numerous cu-mineralized veins. these veins are distributed over more than 20 km around the city of kelaa sraghna. up to now no genetic model of these cu-veins has been proposed for such deposits. veins hosting sulfide mineralization show multiphase precipitation process mainly of pyrite, chalcopyrite, with minor bornite, covellite, and chalcocite. gangue minerals are represented by quartz and carbonates including calcite, dolomite, ankerite and siderite. our recent field investigations show discreet occurrence of both volcanic and plutonic rocks. the present work focusses on the genetic relationship between cu-veins versus the local magmatism occurrences, and will discuss implications for spatial distribution of the mineralization. field work combining mapping/geophysical exploration and drilling campaign shows that the mineralization process could be linked to small appendices of plutonic rocks probably belonging to a large volcanic system (pillow-lava and basic dykes). a comparison of fluid inclusion results, performed on hydrothermal quartz coming from outcrops and shallow galleries (down to –77 m), provides evidence of ptx fluid signatures with temperature less than 200 °c, depth less than 4 km and high nacl (>20 %) content. no boiling process have been detected. from a genetic point of view copper could be transported as cl-complexes and the precipitation of sulfide-bearing minerals seems to be temperature and ph-dependent. these data suggest that the lateral and in-depth distribution of the mineralization could be linked to a large magmatic system and give key perspective for further exploration work in eastern jbilet. |
Auteurs : Koufi Lounes; Younsi Zohir; Cherif Yassine; Naji Hassane International Journal of Thermal Sciences, 116, pp. 103 - 1171ISSN: 1290-0729 @article{Koufi2017c, title = {Numerical investigation of turbulent mixed convection in an open cavity: Effect of inlet and outlet openings}, author = {Lounes Koufi and Zohir Younsi and Yassine Cherif and Hassane Naji}, url = {http://www.sciencedirect.com/science/article/pii/S1290072916312467}, doi = {https://doi.org/10.1016/j.ijthermalsci.2017.02.007}, issn = {1290-0729}, year = {2017}, date = {2017-01-01}, journal = {International Journal of Thermal Sciences}, volume = {116}, pages = {103 - 117}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Détriché Sébastien; Douay Francis Evaluation et conséquences de la contamination des sols en ETM autour d’une ancienne fonderie de plomb et de zinc Educagri Editions, 74-77, @book{Detriche2017a, title = {Evaluation et conséquences de la contamination des sols en ETM autour d’une ancienne fonderie de plomb et de zinc}, author = {Sébastien Détriché and Francis Douay}, year = {2017}, date = {2017-01-01}, booktitle = {Les cartes et les données pédologiques, des outils au service des territoires}, publisher = {Educagri Editions, 74-77}, note = {OV}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {book} } |
Auteurs : Koufi Lounes; Younsi Zohir; Chérif Yassine; abd Naji Hassane Mohamed EL Ganaoui Mechanics & Industry, 18(2), pp. 221- (pages' number: 9)1 @article{Koufi2017cb, title = {A numerical study of indoor air quality in a ventilated room using different strategies of ventilation}, author = {Lounes Koufi and Zohir Younsi and Yassine Chérif and Hassane Mohamed EL Ganaoui abd Naji}, doi = {https://doi.org/10.1051/meca/2016043}, year = {2017}, date = {2017-01-01}, journal = {Mechanics & Industry}, volume = {18}, number = {2}, pages = {221- (pages' number: 9)}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Détriché Sébastien; Douay Francis Interpréter la présence d’élémnets traces métalliques @book{Detriche2017b, title = {Interpréter la présence d’élémnets traces métalliques}, author = {Sébastien Détriché and Francis Douay}, year = {2017}, date = {2017-01-01}, booktitle = {Les cartes et les données pédologiques, des outils au service des territoires}, volume = {pp64-65, Educagri Editions}, note = {OV}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {book} } |
Auteurs : Sekkal W; Zaoui Ali Enhancing the interfacial bond strength of cement nanocomposite with carbonate nanostructure Composites Part B-Engineering, 124, pp. 111–1191 @article{sekkal2017enhancing, title = {Enhancing the interfacial bond strength of cement nanocomposite with carbonate nanostructure}, author = {W Sekkal and Ali Zaoui}, year = {2017}, date = {2017-01-01}, journal = {Composites Part B-Engineering}, volume = {124}, pages = {111--119}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Masson François-Xavier; Lefer Henri-Bertrand; Boulemia Cherif; Naji Hassane JOURNAL OF WATER MANAGEMENT MODELING, 25:C429, ISSN: CHI ref #: C429 @article{Masson2017, title = {Hydraulic Characterization of Porous Materials Using a Rainfall Simulator to Model Flows in Natural and Artificial Non-Saturated Materials}, author = {François-Xavier Masson and Henri-Bertrand Lefer and Cherif Boulemia and Hassane Naji}, doi = {https://doi.org/10.14796/JWMM.C429}, issn = {CHI ref #: C429}, year = {2017}, date = {2017-01-01}, journal = {JOURNAL OF WATER MANAGEMENT MODELING}, volume = {25:C429}, abstract = {Cumulative runoff curves are created by applying constant rainfall of known intensity using a rain simulator. These curves allow us to determine, with good accuracy, the initial loss, the initial time of runoff, and the constant loss. The approach is to model infiltration in an unsaturated medium using a draining reservoir paradigm. Simulated rainfall is applied to a typical soil considered to be composed of two superimposed layers of different permeabilities. This approach enables us to represent the drainage porosity as a function of the constant loss and the initial runoff time, which are measured during the rain simulation. Thus it is possible to calculate the infiltrated volumes, the initial runoff times, and the runoff volumes which are induced by rains of different intensities. Four case studies are used to illustrate the application of our approach.}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } Cumulative runoff curves are created by applying constant rainfall of known intensity using a rain simulator. These curves allow us to determine, with good accuracy, the initial loss, the initial time of runoff, and the constant loss. The approach is to model infiltration in an unsaturated medium using a draining reservoir paradigm. Simulated rainfall is applied to a typical soil considered to be composed of two superimposed layers of different permeabilities. This approach enables us to represent the drainage porosity as a function of the constant loss and the initial runoff time, which are measured during the rain simulation. Thus it is possible to calculate the infiltrated volumes, the initial runoff times, and the runoff volumes which are induced by rains of different intensities. Four case studies are used to illustrate the application of our approach. |
Auteurs : Deweer Caroline; Muchembled Jérôme; Brehault L; Gelin D; Sahmer Karin; Halama Patrice Spécificité de réponses des huiles essentielles et de leurs composés majoritaires enregistrées au laboratoire sur Phytophthora infestans 6ème conférence internationale sur les méthodes alternatives de protection des plantes, 21-23 mars 2017, Lille @conference{Deweer2017, title = {Spécificité de réponses des huiles essentielles et de leurs composés majoritaires enregistrées au laboratoire sur Phytophthora infestans}, author = {Caroline Deweer and Jérôme Muchembled and L Brehault and D Gelin and Karin Sahmer and Patrice Halama}, year = {2017}, date = {2017-01-01}, booktitle = {6ème conférence internationale sur les méthodes alternatives de protection des plantes, 21-23 mars 2017, Lille}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Masson François-Xavier; Lefer Henri-Bertrand; Boulemia Cherif; Naji Hassane Sediment Transfer Variation Approach at Large Rural Watersheds Scale of Northern France Journal of Geography, Environment and Earth Science International, 9(3), pp. 1-101ISSN: ISSN: 2454-7352 @article{Masson2017a, title = {Sediment Transfer Variation Approach at Large Rural Watersheds Scale of Northern France}, author = {François-Xavier Masson and Henri-Bertrand Lefer and Cherif Boulemia and Hassane Naji}, doi = {https://doi.org/10.9734/JGEESI/2017/31781}, issn = {ISSN: 2454-7352}, year = {2017}, date = {2017-01-01}, journal = {Journal of Geography, Environment and Earth Science International}, volume = {9}, number = {3}, pages = {1-10}, abstract = {In the French “Nord-Pas-de-Calais” region, sediments suspended in runoff waters coming from rural watersheds play a major part in the turbidity of surface waters, silting up of streams, and silting of permanent structures such as canals and ports. One of the main factors in processes limiting sediment transfers is the vegetation cover. Quantitative assessment and comparative analysis of the impacts of vegetation cover performed in various scales (fields, smaller watersheds, and larger watersheds) allow showing effects' analogy in these cases. As a result, it is possible to estimate and quantify, at little cost, the risks induced by erosion and runoff in the larger rural watersheds, and the need to change land use. Thereby, watersheds where the situation is more favorable can serve as a model.}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } In the French “Nord-Pas-de-Calais” region, sediments suspended in runoff waters coming from rural watersheds play a major part in the turbidity of surface waters, silting up of streams, and silting of permanent structures such as canals and ports. One of the main factors in processes limiting sediment transfers is the vegetation cover. Quantitative assessment and comparative analysis of the impacts of vegetation cover performed in various scales (fields, smaller watersheds, and larger watersheds) allow showing effects' analogy in these cases. As a result, it is possible to estimate and quantify, at little cost, the risks induced by erosion and runoff in the larger rural watersheds, and the need to change land use. Thereby, watersheds where the situation is more favorable can serve as a model. |
Auteurs : Waterlot Christophe; Pruvot Christelle; Marot Franck; Douay Francis Impact of a phosphate amendment on the environmental availability and phytoavailability of Cd and Pb in moderately and highly carbonated kitchen garden soils Pedosphere, 27(3), pp. 588-6051 @article{Waterlot2017a, title = {Impact of a phosphate amendment on the environmental availability and phytoavailability of Cd and Pb in moderately and highly carbonated kitchen garden soils}, author = {Christophe Waterlot and Christelle Pruvot and Franck Marot and Francis Douay}, year = {2017}, date = {2017-01-01}, journal = {Pedosphere}, volume = {27}, number = {3}, pages = {588-605}, abstract = {The behaviour of metals mainly depends on soil ph, carbonate contents and contamination level, which should be considered for the management of contaminated soils. in this study, kitchen garden topsoils (0–25 cm) were sampled from the area around three smelters in france, with different cd and pb contamination levels. effect of a phosphate amendment (a mixture of diammonium phosphate and hydroxyapatite) on the environmental availability and phytoavailability of cd and pb was evaluated by different chemical extractions and cultivating lettuce (lactuca sativa l.), respectively. changes in the distribution of cd and pb were found in most contaminated soils after phosphate amendment. an increase of cd and pb in the residual phase was highlighted in almost all carbonated contaminated soils, whereas a decrease of pb in the exchangeable, water and acid- soluble phase was observed in most contaminated soils with the lowest carbonate contents. the concentrations of extractable cd and pb using calcium chloride and acetic and citric acids generally decreased after the soil amendment. lettuces grown on amended soils were acceptable for human consumption as regard to pb concentration. in contrast, some lettuces were unacceptable for human consumption, since the concentrations of cd in the leaves were higher than the european legislation limit. surprisingly, in carbonated soils with very low concentration of cd, the cd concentrations in lettuce reached up to the european legislation limit, making the lettuce unacceptable for human consumption. our study highlighted the fact that the total metal concentration in soils does not always allow to predict the metal accumulation in the edible parts of vegetables in order to make a judgement about their acceptability or unacceptability for human consumption. key words: chemical amendment, contamination, immobilisation, lettuce, metal, urban soil}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The behaviour of metals mainly depends on soil ph, carbonate contents and contamination level, which should be considered for the management of contaminated soils. in this study, kitchen garden topsoils (0–25 cm) were sampled from the area around three smelters in france, with different cd and pb contamination levels. effect of a phosphate amendment (a mixture of diammonium phosphate and hydroxyapatite) on the environmental availability and phytoavailability of cd and pb was evaluated by different chemical extractions and cultivating lettuce (lactuca sativa l.), respectively. changes in the distribution of cd and pb were found in most contaminated soils after phosphate amendment. an increase of cd and pb in the residual phase was highlighted in almost all carbonated contaminated soils, whereas a decrease of pb in the exchangeable, water and acid- soluble phase was observed in most contaminated soils with the lowest carbonate contents. the concentrations of extractable cd and pb using calcium chloride and acetic and citric acids generally decreased after the soil amendment. lettuces grown on amended soils were acceptable for human consumption as regard to pb concentration. in contrast, some lettuces were unacceptable for human consumption, since the concentrations of cd in the leaves were higher than the european legislation limit. surprisingly, in carbonated soils with very low concentration of cd, the cd concentrations in lettuce reached up to the european legislation limit, making the lettuce unacceptable for human consumption. our study highlighted the fact that the total metal concentration in soils does not always allow to predict the metal accumulation in the edible parts of vegetables in order to make a judgement about their acceptability or unacceptability for human consumption. key words: chemical amendment, contamination, immobilisation, lettuce, metal, urban soil |
Auteurs : Douay Francis; Lefebvre Gaëtan; Branchu Philippe; Pelfrêne Aurélie; Lebeau Thierry; Rémy Elisabeth Jardins collectifs urbains et contaminations des sols : retours d’expérience sur l’évaluation des risques sanitaires International congress - Sustainable Urban Agricultures: Vector for the Ecological Transition, 6-9 juin 2017, Toulouse @conference{Douay2017, title = {Jardins collectifs urbains et contaminations des sols : retours d’expérience sur l’évaluation des risques sanitaires}, author = {Francis Douay and Gaëtan Lefebvre and Philippe Branchu and Aurélie Pelfrêne and Thierry Lebeau and Elisabeth Rémy}, year = {2017}, date = {2017-01-01}, booktitle = {International congress - Sustainable Urban Agricultures: Vector for the Ecological Transition, 6-9 juin 2017, Toulouse}, abstract = {Avec la montée en puissance de préoccupations en lien avec l’environnement et le « manger sain », on constate une demande croissante pour les jardins collectifs urbains (jardins familiaux, partagés, pédagogiques ou encore d’insertion) (canavese, 2014). cependant, résultant de processus géologiques et pédologiques hétérogènes (pouvant dans certains cas être à l’origine d’anomalies avec fortes concentrations en certains éléments métalliques, cf. jean-soro et al. 2014; bouquet et al., 2016), leurs sols sont des milieux très complexes et réactifs aux activités humaines et industrielles (douay, 2008). les jardins collectifs présentent la particularité d’être très souvent en milieu urbain ou périurbain et leurs sols ont été fréquemment remaniés, d’où la difficulté de retracer l’historique et, parfois, l’origine des contaminants. de fait, les jardins sont souvent aménagés sur des espaces qui ont été exposés par le passé à une, voire plusieurs sources de contamination. à ce jour, demeurent de nombreuses sources de contaminations (potentielles ou avérées) telles que la proximité d’industries, d’axes routiers ou ferroviaires susceptibles d’impacter la qualité de ces milieux comme supports de cultures, l'utilisation fréquente de produits phytosanitaires (même lorsque la charte du jardin ou de la ville l’interdit) qui peuvent conduire à modifier le fonctionnement du sol, ou encore l’utilisation pour l’irrigation d’eau contaminée. à cela s’ajoutent les sources de contaminations urbaines issues de la circulation automobile, du chauffage et de l’altération des constructions et des matériaux. dans ce contexte, les jardins peuvent présenter un risque du fait d’une contamination de leurs sols et plus globalement du milieu où ils sont localisés, surtout lorsqu’ils concernent une population dite « sensible » (enfants, femmes enceintes, personnes âgées). l’exposition aux polluants peut être liée à la consommation de légumes et/ou à l’inhalation ou à l’ingestion de particules de terre contaminées. une autre voie d’exposition est celle de la pollution atmosphérique dont les effets sont accentués par l’activité physique associée au jardinage. d’un point de vue réglementaire et contrairement à l’air ou à l’eau, le sol a un statut très particulier puisqu’il n’est pas protégé en tant que tel. l’absence de valeurs seuils réglementant les usages des sols pèse sur la gestion des jardins urbains, espaces récréatifs et de productions alimentaires. en cas de contamination environnementale avérée, la démarche nationale repose sur les procédures réglementaires d’évaluation de risques sanitaires des sites et sols pollués. dans le cadre d’une démarche pluridisciplinaire, il a été décidé de centrer notre attention sur l’outil « evaluation quantitative des risques sanitaires –eqrs » préconisé dans le cadre de la méthodologie nationale et appliqué à la problématique des jardins associatifs. après un rappel des étapes relatives à cet outil, seront exposés les contextes et les démarches de cinq études réalisées sur des jardins familiaux français situés dans différents contextes environnementaux. le retour d’expérience sur l’analyse des eqrs étudiées a mis en évidence six points majeurs, lesquels seront présentés et discutés : - les compétences du maître d’ouvrage / maître d’oeuvre pour définir ce qui est à faire ou à ne pas faire dans le cadre d’une eqrs ; - les données nécessaires pour la réalisation d’une eqrs en soulignant l’importance du diagnostic historique ; - les incertitudes liées à la mesure des concentrations en polluants dans les matrices échantillonnées ; - les difficultés qui résultent de l’absence de valeurs réglementaires pour déclarer qu’un sol est contaminé et du recours à des référentiels plus ou moins adaptés au contexte et aux objectifs de la démarche ; - les incertitudes sur les paramètres à considérer dans l’eqrs (quantités de particules de terre et de légumes ingérés, part des légumes autoproduits…) ; - la perception du sol par les jardiniers et la nécessité de définir un langage commun pour ne pas générer de problèmes d’interprétation et répondre aux questions que se posent ces acteurs. l’analyse des cinq exemples d’eqrs atteste l’importance des paramètres à considérer pour une telle démarche. le présent travail représente un apport méthodologique en vue d’essayer de guider les pratiques et aussi, de répondre aux collectivités, lesquelles sont de plus en plus confrontées à des problèmes de contamination des sols de jardin et veulent s’engager dans la réalisation d’une eqrs. au vu de certains résultats, des jardiniers vont se documenter, chercher des réponses auprès des mairies, des bureaux d’études, de l’ars, de scientifiques… l’expérience souligne aussi l’absence de référent qui pourrait renseigner sur la qualité des sols et de leur gestion en milieu contaminé. la restitution des résultats auprès des gestionnaires de jardins et des populations concernées nécessite une réflexion approfondie associant les parties concernées et des spécialistes de la santé.}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Avec la montée en puissance de préoccupations en lien avec l’environnement et le « manger sain », on constate une demande croissante pour les jardins collectifs urbains (jardins familiaux, partagés, pédagogiques ou encore d’insertion) (canavese, 2014). cependant, résultant de processus géologiques et pédologiques hétérogènes (pouvant dans certains cas être à l’origine d’anomalies avec fortes concentrations en certains éléments métalliques, cf. jean-soro et al. 2014; bouquet et al., 2016), leurs sols sont des milieux très complexes et réactifs aux activités humaines et industrielles (douay, 2008). les jardins collectifs présentent la particularité d’être très souvent en milieu urbain ou périurbain et leurs sols ont été fréquemment remaniés, d’où la difficulté de retracer l’historique et, parfois, l’origine des contaminants. de fait, les jardins sont souvent aménagés sur des espaces qui ont été exposés par le passé à une, voire plusieurs sources de contamination. à ce jour, demeurent de nombreuses sources de contaminations (potentielles ou avérées) telles que la proximité d’industries, d’axes routiers ou ferroviaires susceptibles d’impacter la qualité de ces milieux comme supports de cultures, l'utilisation fréquente de produits phytosanitaires (même lorsque la charte du jardin ou de la ville l’interdit) qui peuvent conduire à modifier le fonctionnement du sol, ou encore l’utilisation pour l’irrigation d’eau contaminée. à cela s’ajoutent les sources de contaminations urbaines issues de la circulation automobile, du chauffage et de l’altération des constructions et des matériaux. dans ce contexte, les jardins peuvent présenter un risque du fait d’une contamination de leurs sols et plus globalement du milieu où ils sont localisés, surtout lorsqu’ils concernent une population dite « sensible » (enfants, femmes enceintes, personnes âgées). l’exposition aux polluants peut être liée à la consommation de légumes et/ou à l’inhalation ou à l’ingestion de particules de terre contaminées. une autre voie d’exposition est celle de la pollution atmosphérique dont les effets sont accentués par l’activité physique associée au jardinage. d’un point de vue réglementaire et contrairement à l’air ou à l’eau, le sol a un statut très particulier puisqu’il n’est pas protégé en tant que tel. l’absence de valeurs seuils réglementant les usages des sols pèse sur la gestion des jardins urbains, espaces récréatifs et de productions alimentaires. en cas de contamination environnementale avérée, la démarche nationale repose sur les procédures réglementaires d’évaluation de risques sanitaires des sites et sols pollués. dans le cadre d’une démarche pluridisciplinaire, il a été décidé de centrer notre attention sur l’outil « evaluation quantitative des risques sanitaires –eqrs » préconisé dans le cadre de la méthodologie nationale et appliqué à la problématique des jardins associatifs. après un rappel des étapes relatives à cet outil, seront exposés les contextes et les démarches de cinq études réalisées sur des jardins familiaux français situés dans différents contextes environnementaux. le retour d’expérience sur l’analyse des eqrs étudiées a mis en évidence six points majeurs, lesquels seront présentés et discutés : - les compétences du maître d’ouvrage / maître d’oeuvre pour définir ce qui est à faire ou à ne pas faire dans le cadre d’une eqrs ; - les données nécessaires pour la réalisation d’une eqrs en soulignant l’importance du diagnostic historique ; - les incertitudes liées à la mesure des concentrations en polluants dans les matrices échantillonnées ; - les difficultés qui résultent de l’absence de valeurs réglementaires pour déclarer qu’un sol est contaminé et du recours à des référentiels plus ou moins adaptés au contexte et aux objectifs de la démarche ; - les incertitudes sur les paramètres à considérer dans l’eqrs (quantités de particules de terre et de légumes ingérés, part des légumes autoproduits…) ; - la perception du sol par les jardiniers et la nécessité de définir un langage commun pour ne pas générer de problèmes d’interprétation et répondre aux questions que se posent ces acteurs. l’analyse des cinq exemples d’eqrs atteste l’importance des paramètres à considérer pour une telle démarche. le présent travail représente un apport méthodologique en vue d’essayer de guider les pratiques et aussi, de répondre aux collectivités, lesquelles sont de plus en plus confrontées à des problèmes de contamination des sols de jardin et veulent s’engager dans la réalisation d’une eqrs. au vu de certains résultats, des jardiniers vont se documenter, chercher des réponses auprès des mairies, des bureaux d’études, de l’ars, de scientifiques… l’expérience souligne aussi l’absence de référent qui pourrait renseigner sur la qualité des sols et de leur gestion en milieu contaminé. la restitution des résultats auprès des gestionnaires de jardins et des populations concernées nécessite une réflexion approfondie associant les parties concernées et des spécialistes de la santé. |
Auteurs : Vanmarcke Audrey; Leroy Lise; Stoclet Gregory; Duchatel-Crépy Lucie; Lefebvre Jean-Marc; Joly Nicolas; Gaucher Valérie Carbohydrate Polymers, 164, pp. 249 - 2571ISSN: 0144-8617 @article{VANMARCKE2017249, title = {Influence of fatty chain length and starch composition on structure and properties of fully substituted fatty acid starch esters}, author = {Audrey Vanmarcke and Lise Leroy and Gregory Stoclet and Lucie Duchatel-Crépy and Jean-Marc Lefebvre and Nicolas Joly and Valérie Gaucher}, url = {http://www.sciencedirect.com/science/article/pii/S0144861717301339}, doi = {https://doi.org/10.1016/j.carbpol.2017.02.013}, issn = {0144-8617}, year = {2017}, date = {2017-01-01}, journal = {Carbohydrate Polymers}, volume = {164}, pages = {249 - 257}, abstract = {A series of almost fully substituted Fatty Acid Starch Esters (FASEs) has been obtained in a homogeneous LiCl/DMAc medium by grafting octanoyl (C8), lauroyl (C12) and palmitoyl (C16) chlorides onto 3 starch species: Amylo-Maize, Potato and Waxy Maize. Structure-property relationships of FASEs are investigated as a function of both fatty acid chain length and amylose/amylopectin ratio of the starch. The structural study has revealed a layered type organization in which starch chain planes are separated by fatty chains. The latter are interpenetrated and/or tilted for FASE-C16 whatever the origin of the starch is, and fatty chains partially crystallizes into a structure with hexagonal symmetry. FASEs with C8 and C12 side chains are totally amorphous. The mechanical behavior of FASEs is shown to depend on both side chain length and amylose/amylopectin ratio, and an increase in material ductility is observed at increasing amylose content for C8 and C12 side chains.}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } A series of almost fully substituted Fatty Acid Starch Esters (FASEs) has been obtained in a homogeneous LiCl/DMAc medium by grafting octanoyl (C8), lauroyl (C12) and palmitoyl (C16) chlorides onto 3 starch species: Amylo-Maize, Potato and Waxy Maize. Structure-property relationships of FASEs are investigated as a function of both fatty acid chain length and amylose/amylopectin ratio of the starch. The structural study has revealed a layered type organization in which starch chain planes are separated by fatty chains. The latter are interpenetrated and/or tilted for FASE-C16 whatever the origin of the starch is, and fatty chains partially crystallizes into a structure with hexagonal symmetry. FASEs with C8 and C12 side chains are totally amorphous. The mechanical behavior of FASEs is shown to depend on both side chain length and amylose/amylopectin ratio, and an increase in material ductility is observed at increasing amylose content for C8 and C12 side chains. |
Auteurs : Pana Ana-Maria; Popa Marcel; Silion Mihaela; Sfirloaga Paula; Bandur Geza; Duchatel-Crépy Lucie Iranian Polymer Journal, 26(10), pp. 1 - 91 @article{PANA20171, title = {Novel semi-interpenetrating network hydrogels based on monosaccharide oligomers with itaconic moiety: synthesis and properties}, author = {Ana-Maria Pana and Marcel Popa and Mihaela Silion and Paula Sfirloaga and Geza Bandur and Lucie Duchatel-Crépy}, doi = {DOI: 10.1007/s13726-017-0559-4}, year = {2017}, date = {2017-01-01}, journal = {Iranian Polymer Journal}, volume = {26}, number = {10}, pages = {1 - 9}, abstract = {Hydrogel-based drug delivery systems encounter great scientific attention nowadays. Semi-interpenetrating network systems with hydrogel features have been studied as potential drug carriers due to their water intake capacity, biocompatibility and biodegradability. One of the most important features of drug delivery systems is biocompatibility and as such materials derived from natural resources seem to be more appropriate to act as excipients. In this respect, two new semi-interpenetrating networks (semi-IPNs) with hydrogel features based on chitosan, two novel oligomers derived from monosaccharides and 2-hydroxyethylmethacrylate (HEMA) have been synthesized and characterized using FTIR, thermogravimetry, SEM/EDX and swelling behavior. The new sugar-derived oligomers (GI and MI) with double bonds available for further polymerization were obtained by polycondensation of 1,3-propanediol with dicarboxylic acids derived from glucose/mannose skeleton with itaconic anhydride moieties. GI and MI oligomers were characterized by FTIR, NMR spectroscopy and ESI–MS spectrometry, which showed molecular weights of about 7000 Da and linear polymerization chain structure. The new semi-IPNs show good thermal behavior and these hydrogels display a swelling tendency by loading significantly more water in an acid environment than in a neutral solution. Moreover, these superabsorbent hydrogels are able to load significant amount of hydrosoluble active principle (herein the antibiotic levofloxacin) and their releasing profile is marked by an important “burst effect”.}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } Hydrogel-based drug delivery systems encounter great scientific attention nowadays. Semi-interpenetrating network systems with hydrogel features have been studied as potential drug carriers due to their water intake capacity, biocompatibility and biodegradability. One of the most important features of drug delivery systems is biocompatibility and as such materials derived from natural resources seem to be more appropriate to act as excipients. In this respect, two new semi-interpenetrating networks (semi-IPNs) with hydrogel features based on chitosan, two novel oligomers derived from monosaccharides and 2-hydroxyethylmethacrylate (HEMA) have been synthesized and characterized using FTIR, thermogravimetry, SEM/EDX and swelling behavior. The new sugar-derived oligomers (GI and MI) with double bonds available for further polymerization were obtained by polycondensation of 1,3-propanediol with dicarboxylic acids derived from glucose/mannose skeleton with itaconic anhydride moieties. GI and MI oligomers were characterized by FTIR, NMR spectroscopy and ESI–MS spectrometry, which showed molecular weights of about 7000 Da and linear polymerization chain structure. The new semi-IPNs show good thermal behavior and these hydrogels display a swelling tendency by loading significantly more water in an acid environment than in a neutral solution. Moreover, these superabsorbent hydrogels are able to load significant amount of hydrosoluble active principle (herein the antibiotic levofloxacin) and their releasing profile is marked by an important “burst effect”. |
Auteurs : Patault Edouard; Alary Claire; Franke Christine; Gauthier Arnaud; Abriak Nor-Edine Assessing the variability of ephemeral gully erosion using high-frequency monitoring and GIS modeling: Case study in a fully cultivated catchment (Pommeroye, Northern France) AGU, 11-15 December 2017, New Orleans, Louisiana (USA) @conference{Patault2017, title = {Assessing the variability of ephemeral gully erosion using high-frequency monitoring and GIS modeling: Case study in a fully cultivated catchment (Pommeroye, Northern France)}, author = {Edouard Patault and Claire Alary and Christine Franke and Arnaud Gauthier and Nor-Edine Abriak}, year = {2017}, date = {2017-01-01}, booktitle = {AGU, 11-15 December 2017, New Orleans, Louisiana (USA)}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Patault Edouard; Alary Claire; Franke Christine; Gauthier Arnaud; Abriak Nor-Edine Suivi haute-fréquence et modélisation de l’érosion en territoire agricole : le bassin expérimental de la Pommeroye (Hauts-de-France) Assises régionales de lutte contre l’érosion, décembre 2017, Amiens @conference{Patault2017a, title = {Suivi haute-fréquence et modélisation de l’érosion en territoire agricole : le bassin expérimental de la Pommeroye (Hauts-de-France)}, author = {Edouard Patault and Claire Alary and Christine Franke and Arnaud Gauthier and Nor-Edine Abriak}, year = {2017}, date = {2017-01-01}, booktitle = {Assises régionales de lutte contre l’érosion, décembre 2017, Amiens}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Dubus Julien; Homsy Charles; Soussaline Michel; Soussaline Françoise; Pourrut Bertrand Medium throughput plant Comet Assay optimisation and development of an automated scoring system 12th International Comet Assay Workshop (ICAW), 29-31 August 2017, Pampelune (Espagne) @conference{Dubus2017, title = {Medium throughput plant Comet Assay optimisation and development of an automated scoring system}, author = {Julien Dubus and Charles Homsy and Michel Soussaline and Françoise Soussaline and Bertrand Pourrut}, year = {2017}, date = {2017-01-01}, booktitle = {12th International Comet Assay Workshop (ICAW), 29-31 August 2017, Pampelune (Espagne)}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Dufrénoy Pierrick; Rigo Benoit; Daïch Adam; Hechelski Marie; Waterlot Christophe; Ghinet Alina Valorization of montmorillonite K10-supported Lewis acids as new catalysts for the synthesis of new antitumor compounds 4th French-Romanian Colloquium on Medicinal Chemistry, 5-7 October 2017, Iasi (Roumania) @conference{Dufrenoy2017, title = {Valorization of montmorillonite K10-supported Lewis acids as new catalysts for the synthesis of new antitumor compounds}, author = {Pierrick Dufrénoy and Benoit Rigo and Adam Daïch and Marie Hechelski and Christophe Waterlot and Alina Ghinet}, year = {2017}, date = {2017-01-01}, booktitle = {4th French-Romanian Colloquium on Medicinal Chemistry, 5-7 October 2017, Iasi (Roumania)}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Pelfrêne Aurélie Projet ODESSA: Amélioration de l’évaluation des risques encourus par les populations exposées aux sols pollués en proposant une méthode alternative au test UBM, rapide, moins coûteuse, fiable, représentative de la bioaccessibilité gastro-intestinale des ETM et applicable dans différents contextes environnementaux Colloque ADEME Sites et Sols pollués, 10-11 mai 2017, Paris @conference{Pelfrene2017a, title = {Projet ODESSA: Amélioration de l’évaluation des risques encourus par les populations exposées aux sols pollués en proposant une méthode alternative au test UBM, rapide, moins coûteuse, fiable, représentative de la bioaccessibilité gastro-intestinale des ETM et applicable dans différents contextes environnementaux}, author = {Aurélie Pelfrêne}, year = {2017}, date = {2017-01-01}, booktitle = {Colloque ADEME Sites et Sols pollués, 10-11 mai 2017, Paris}, note = {ACTN}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Dufrénoy Pierrick; Rigo Benoit; Daïch Adam; Waterlot Christophe; Hechelski Marie; Ghinet Alina Valorization of new eco-catalysts in the synthesis of new antitumor compounds Journées Nord-Ouest Européennes des Jeunes Chercheurs et du Groupe Français des Polymères Grand Ouest-JNOEJC/GFP. 08-09 juin 2017, Caen @conference{Dufrenoy2017a, title = {Valorization of new eco-catalysts in the synthesis of new antitumor compounds}, author = {Pierrick Dufrénoy and Benoit Rigo and Adam Daïch and Christophe Waterlot and Marie Hechelski and Alina Ghinet}, year = {2017}, date = {2017-01-01}, booktitle = {Journées Nord-Ouest Européennes des Jeunes Chercheurs et du Groupe Français des Polymères Grand Ouest-JNOEJC/GFP. 08-09 juin 2017, Caen}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Dufrénoy Pierrick; Rigo Benoit; Daïch Adam; Waterlot Christophe; Hechelski Marie; Ghinet Alina Valorization of supported catalysts in the synthesis of new farnesyltransferase inhibitors Journées du Drug Discovery, Faculté de pharmacie, Lille 2, 8 décembre 2017, Lille @conference{Dufrenoy2017b, title = {Valorization of supported catalysts in the synthesis of new farnesyltransferase inhibitors}, author = {Pierrick Dufrénoy and Benoit Rigo and Adam Daïch and Christophe Waterlot and Marie Hechelski and Alina Ghinet}, year = {2017}, date = {2017-01-01}, booktitle = {Journées du Drug Discovery, Faculté de pharmacie, Lille 2, 8 décembre 2017, Lille}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Dufrénoy Pierrick; Rigo Benoit; Waterlot Christophe; Hechelski Marie; Daïch Adam; Ghinet Alina Valorization of new eco-catalysts in the synthesis of anti-inflammatory compounds Journées des Jeunes Chercheurs de la Société de Chimie Thérapeutique, 08-10 février 2017, Faculté de pharmacie Châtenay-Malabry @conference{Dufrenoy2017c, title = {Valorization of new eco-catalysts in the synthesis of anti-inflammatory compounds}, author = {Pierrick Dufrénoy and Benoit Rigo and Christophe Waterlot and Marie Hechelski and Adam Daïch and Alina Ghinet}, year = {2017}, date = {2017-01-01}, booktitle = {Journées des Jeunes Chercheurs de la Société de Chimie Thérapeutique, 08-10 février 2017, Faculté de pharmacie Châtenay-Malabry}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Pelfrêne Aurélie; Cave Mark-R.; Wragg Joanna; Douay Francis In vitro investigations of human bioaccessibility from reference materials using simulated lung fluids International Journal of Environmental Research and Public Health, 14(2), pp. 1121 @article{Pelfrene2017b, title = {In vitro investigations of human bioaccessibility from reference materials using simulated lung fluids}, author = {Aurélie Pelfrêne and Mark-R. Cave and Joanna Wragg and Francis Douay}, year = {2017}, date = {2017-01-01}, journal = {International Journal of Environmental Research and Public Health}, volume = {14}, number = {2}, pages = {112}, abstract = {An investigation for assessing pulmonary bioaccessibility of metals from reference materials is presented using simulated lung fluids. the objective of this paper was to contribute to an enhanced understanding of airborne particulate matter and its toxic potential following inhalation. a large set of metallic elements (ba, cd, co, cr, cu, mn, ni, pb, sr, and zn) was investigated using three lung fluids (phosphate-buffered saline, gamble’s solution and artificial lysosomal fluid) on three standard reference materials representing different types of particle sources. composition of the leaching solution and four solid-to-liquid (s/l) ratios were tested. the results showed that bioaccessibility was speciation- (i.e., distribution) and element-dependent, with percentages varying from 0.04% for pb to 86.0% for cd. the higher extraction of metallic elements was obtained with the artificial lysosomal fluid, in which a relative stability of bioaccessibility was observed in a large range of s/l ratios from 1/1000 to 1/10,000. for further investigations, it is suggested that this method be used to assess lung bioaccessibility of metals from smelter-impacted dusts.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } An investigation for assessing pulmonary bioaccessibility of metals from reference materials is presented using simulated lung fluids. the objective of this paper was to contribute to an enhanced understanding of airborne particulate matter and its toxic potential following inhalation. a large set of metallic elements (ba, cd, co, cr, cu, mn, ni, pb, sr, and zn) was investigated using three lung fluids (phosphate-buffered saline, gamble’s solution and artificial lysosomal fluid) on three standard reference materials representing different types of particle sources. composition of the leaching solution and four solid-to-liquid (s/l) ratios were tested. the results showed that bioaccessibility was speciation- (i.e., distribution) and element-dependent, with percentages varying from 0.04% for pb to 86.0% for cd. the higher extraction of metallic elements was obtained with the artificial lysosomal fluid, in which a relative stability of bioaccessibility was observed in a large range of s/l ratios from 1/1000 to 1/10,000. for further investigations, it is suggested that this method be used to assess lung bioaccessibility of metals from smelter-impacted dusts. |
Auteurs : Dumat Camille; Pelfrêne Aurélie; Lévêque Thibaut; Mombo Stéphane; Austruy Annabelle; Shins R; Foucault Yann Measurement of human bioaccessibility for metals: Relevant indicator of the link environment-health! International congress - Sustainable Urban Agricultures: Vector for the Ecological Transition, 6-9 juin 2017, Toulouse @conference{Dumat2017, title = {Measurement of human bioaccessibility for metals: Relevant indicator of the link environment-health!}, author = {Camille Dumat and Aurélie Pelfrêne and Thibaut Lévêque and Stéphane Mombo and Annabelle Austruy and R Shins and Yann Foucault}, year = {2017}, date = {2017-01-01}, booktitle = {International congress - Sustainable Urban Agricultures: Vector for the Ecological Transition, 6-9 juin 2017, Toulouse}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Yehya Alissar; Naji Hassane Towards the simulation of supercooling and convection in phase change materials using a thermal lattice Boltzmann method Progress in Computational Fluid Dynamics: an International Journal, @article{Yehya2017, title = {Towards the simulation of supercooling and convection in phase change materials using a thermal lattice Boltzmann method}, author = {Alissar Yehya and Hassane Naji}, year = {2017}, date = {2017-01-01}, journal = {Progress in Computational Fluid Dynamics: an International Journal}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Younsi Zohir; Naji Hassane International Communications in Heat and Mass Transfer, 86, pp. 12 - 241ISSN: 0735-1933 @article{Younsi2017a, title = {A numerical investigation of melting phase change process via the enthalpy-porosity approach: Application to hydrated salts}, author = {Zohir Younsi and Hassane Naji}, url = {http://www.sciencedirect.com/science/article/pii/S0735193317301045}, doi = {https://doi.org/10.1016/j.icheatmasstransfer.2017.05.012}, issn = {0735-1933}, year = {2017}, date = {2017-01-01}, journal = {International Communications in Heat and Mass Transfer}, volume = {86}, pages = {12 - 24}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Dusséaux Camille; Gebelin Aude; Boulvais Philippe; Dubois Michel; Gardien Véronique; Mulch Andreas Deep penetration of meteoric water in Variscan ductile shear zones (Western Europe) Goldschmidt Conference, 14-18 août 2017, Paris @conference{Dusseaux2017, title = {Deep penetration of meteoric water in Variscan ductile shear zones (Western Europe)}, author = {Camille Dusséaux and Aude Gebelin and Philippe Boulvais and Michel Dubois and Véronique Gardien and Andreas Mulch}, year = {2017}, date = {2017-01-01}, booktitle = {Goldschmidt Conference, 14-18 août 2017, Paris}, abstract = {The variscan belt of western europe is well exposed in the armorican massif (am) and the french massif central (fmc). they are both characterized by strike-slip shear zones and detachment zones that developed as a consequence of late carboniferous post-orogenic extension. syntectonic peraluminous granites are spatially associated with strike-slip shear zones and form the footwall of the detachment zones. therefore, the structural, geochemical and geochronological study of synextensional granitic plutons greatly helps in understanding extension phenomena. combining microstructural, hydrogen isotope (gd) and fluid inclusion analysis of granitic mylonite samples, we aim at understanding the spatial and temporal relationships among microstructure development, localization of strain and fluidrock interaction}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } The variscan belt of western europe is well exposed in the armorican massif (am) and the french massif central (fmc). they are both characterized by strike-slip shear zones and detachment zones that developed as a consequence of late carboniferous post-orogenic extension. syntectonic peraluminous granites are spatially associated with strike-slip shear zones and form the footwall of the detachment zones. therefore, the structural, geochemical and geochronological study of synextensional granitic plutons greatly helps in understanding extension phenomena. combining microstructural, hydrogen isotope (gd) and fluid inclusion analysis of granitic mylonite samples, we aim at understanding the spatial and temporal relationships among microstructure development, localization of strain and fluidrock interaction |
Auteurs : Elmaleh Agnes; Caste Florent; Menguy Nicolas; Bourdelle Franck; Gloter Alexandre; Lloret Emily; Belkhou Rachid; Brest Jessica An experimental approach of asteroidal water-rock interactions: mineral formation in a Fe,Si-rich system under anoxygenic conditions Goldschmidt Conference, 14-18 août 2017, Paris @conference{Elmaleh2017, title = {An experimental approach of asteroidal water-rock interactions: mineral formation in a Fe,Si-rich system under anoxygenic conditions}, author = {Agnes Elmaleh and Florent Caste and Nicolas Menguy and Franck Bourdelle and Alexandre Gloter and Emily Lloret and Rachid Belkhou and Jessica Brest}, year = {2017}, date = {2017-01-01}, booktitle = {Goldschmidt Conference, 14-18 août 2017, Paris}, abstract = {Water-rock interactions observed in carbonaceous chondrites bear similarities to terrestrial serpentinization1, with, however, specificities that need to be addressed experimentally for the environmental conditions that prevailed on their asteroidal parent bodies to be understood. mixed valent fe-rich serpentines are common, but their mechanisms of formation and the fe oxidation processes under the presumably low t and anoxygenic conditions of asteroids are still poorly understood. we performed syntheses of serpentines with different starting compositions as well as alteration experiments of reduced minerals (olivine and metal). anoxygenic conditions were maintained throughout, and the influence of the addition of mgal2o4 -a minor yet ubiquitous component of chondrites- on fe oxidation was tested. the experimental products and their fe valence state were studied down to the nanometer scale using tem, eels and stxm-xanes at the fe l2,3 edges. a complex partitioning of fe among hydroxide and silicate phases is observed, and two main conclusions can be drawn. first, results from both hydrothermal alteration and synthesis suggest the efficiency of spinel in catalysing the oxidation of aqueous fe2+ by water at low t (60°c), similarly to previous experiments in fe-poor systems2. such processes produce hydrogen that may then have played an important role in the evolution of the parent bodies of chondrites (redox state, abiotic organosynthesis3,4). second, at high fe/si and fe3+ /fetot ratios we observed the crystallization of fe-rich serpentine close to the cronstedtite end-member at room temperature. such a rapid formation of cronstedtite is in good agreement with the association of this mineral to the early stages of aqueous alteration in cm chondrites6,1. implications on terrestrial processes will also be discussed.}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Water-rock interactions observed in carbonaceous chondrites bear similarities to terrestrial serpentinization1, with, however, specificities that need to be addressed experimentally for the environmental conditions that prevailed on their asteroidal parent bodies to be understood. mixed valent fe-rich serpentines are common, but their mechanisms of formation and the fe oxidation processes under the presumably low t and anoxygenic conditions of asteroids are still poorly understood. we performed syntheses of serpentines with different starting compositions as well as alteration experiments of reduced minerals (olivine and metal). anoxygenic conditions were maintained throughout, and the influence of the addition of mgal2o4 -a minor yet ubiquitous component of chondrites- on fe oxidation was tested. the experimental products and their fe valence state were studied down to the nanometer scale using tem, eels and stxm-xanes at the fe l2,3 edges. a complex partitioning of fe among hydroxide and silicate phases is observed, and two main conclusions can be drawn. first, results from both hydrothermal alteration and synthesis suggest the efficiency of spinel in catalysing the oxidation of aqueous fe2+ by water at low t (60°c), similarly to previous experiments in fe-poor systems2. such processes produce hydrogen that may then have played an important role in the evolution of the parent bodies of chondrites (redox state, abiotic organosynthesis3,4). second, at high fe/si and fe3+ /fetot ratios we observed the crystallization of fe-rich serpentine close to the cronstedtite end-member at room temperature. such a rapid formation of cronstedtite is in good agreement with the association of this mineral to the early stages of aqueous alteration in cm chondrites6,1. implications on terrestrial processes will also be discussed. |
Auteurs : Pelfrêne Aurélie; Sahmer Karin; Grard Olivier; Heyman Christophe; Douay Francis De l’acquisition de données environnementales et sociales à l’évaluation de l’exposition des jardiniers: Un retour d’expérience dans un contexte urbain fortement contaminé par les métaux International congress - Sustainable Urban Agricultures: Vector for the Ecological Transition, 6-9 juin 2017, Toulouse @conference{Pelfrene2017bb, title = {De l’acquisition de données environnementales et sociales à l’évaluation de l’exposition des jardiniers: Un retour d’expérience dans un contexte urbain fortement contaminé par les métaux}, author = {Aurélie Pelfrêne and Karin Sahmer and Olivier Grard and Christophe Heyman and Francis Douay}, year = {2017}, date = {2017-01-01}, booktitle = {International congress - Sustainable Urban Agricultures: Vector for the Ecological Transition, 6-9 juin 2017, Toulouse}, abstract = {Jusqu’à récemment, le jardinage avait souvent pour vocation principale de subvenir aux besoins alimentaires. de nos jours, les motivations des jardiniers sont beaucoup plus variées et il est admis que le jardin joue aussi un rôle social et de support de biodiversité. si le jardinage est effectué le plus souvent en milieu rural (près de 51% selon l’insee, 1993), il se pratique aussi de plus en plus souvent en milieu périurbain ou urbain. se pose alors la question de la qualité des sols et des productions cultivées au regard de pollutions potentielles résultant des activités humaines (chauffage urbain, circulation automobile, activités industrielles…). cette problématique, qui reste rarement étudiée, est d’autant plus importante dans les régions avec un lourd passé industriel comme dans l’ancien bassin minier du nord – pas de calais. depuis plus de 20 ans, des travaux y sont réalisés et ceci, plus spécifiquement dans un secteur compris entre lens et douai où deux fonderies de plomb et de zinc ont rejeté par le passé des quantités considérables de poussières métalliques. leurs retombées ont conduit à une contamination massive des sols notamment en plomb, cadmium et zinc. en partenariat avec les services sanitaires et pour évaluer les dangers, des investigations sont menées dans les jardins aux alentours de l’ancienne fonderie de plomb metaleurop nord (noyelles-godault) où plus de 900 potagers ont été repérés au moyen de photographies aériennes. sur les 530 jardiniers qui ont été sollicités pour participer à une étude visant à mieux connaître ces milieux et les dangers associés à leur contamination, 115 ont accepté. l’échantillonnage des sols et des productions a été réalisé durant l’année culturale 2013. les pratiques culturales et les habitudes alimentaires ont aussi été caractérisées au moyen d’enquêtes. les résultats ont confirmé le très fort degré de contamination de la plupart des sols des jardins étudiés, lequel ne peut être expliqué par les seules retombées de poussières. des apports de matériaux contaminés et diverses pratiques ont souvent conduit à accroître notablement les concentrations en polluants des sols. il a été dressé un bilan des productions selon leur aptitude à accumuler les métaux dans les organes consommés et préparés comme le ferait un consommateur soigneux (lavage, épluchage). sur les 1566 échantillons de légumes, aromates et fruits analysés, 51% présentent des concentrations en cadmium et plomb qui excèdent les valeurs réglementant la consommation des denrées alimentaires. au regard de ces résultats, s’est posée la question de l’exposition des jardiniers en lien avec la consommation de leurs productions potagères mais aussi avec l’ingestion de particules de sols. pour mieux évaluer cette exposition, la bioaccessibilité orale des métaux a été prise en compte au lieu des concentrations totales classiquement mesurées dans les légumes et les sols. les résultats obtenus ont été présentés aux jardiniers lors d’entretiens individuels. la restitution a été complétée par des préconisations culturales et/ou alimentaires personnalisées visant à réduire l’imprégnation des populations au plomb et au cadmium. l’évaluation des effets de ces restitutions sur les pratiques a été réalisée un an après la fin de la restitution sur la base d’un nouvel entretien avec les jardiniers concernés. sera présenté un retour d’expérience sur cette démarche, de l’échantillonnage des sols et des productions jusqu’à la restitution auprès des jardiniers des données acquises.}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Jusqu’à récemment, le jardinage avait souvent pour vocation principale de subvenir aux besoins alimentaires. de nos jours, les motivations des jardiniers sont beaucoup plus variées et il est admis que le jardin joue aussi un rôle social et de support de biodiversité. si le jardinage est effectué le plus souvent en milieu rural (près de 51% selon l’insee, 1993), il se pratique aussi de plus en plus souvent en milieu périurbain ou urbain. se pose alors la question de la qualité des sols et des productions cultivées au regard de pollutions potentielles résultant des activités humaines (chauffage urbain, circulation automobile, activités industrielles…). cette problématique, qui reste rarement étudiée, est d’autant plus importante dans les régions avec un lourd passé industriel comme dans l’ancien bassin minier du nord – pas de calais. depuis plus de 20 ans, des travaux y sont réalisés et ceci, plus spécifiquement dans un secteur compris entre lens et douai où deux fonderies de plomb et de zinc ont rejeté par le passé des quantités considérables de poussières métalliques. leurs retombées ont conduit à une contamination massive des sols notamment en plomb, cadmium et zinc. en partenariat avec les services sanitaires et pour évaluer les dangers, des investigations sont menées dans les jardins aux alentours de l’ancienne fonderie de plomb metaleurop nord (noyelles-godault) où plus de 900 potagers ont été repérés au moyen de photographies aériennes. sur les 530 jardiniers qui ont été sollicités pour participer à une étude visant à mieux connaître ces milieux et les dangers associés à leur contamination, 115 ont accepté. l’échantillonnage des sols et des productions a été réalisé durant l’année culturale 2013. les pratiques culturales et les habitudes alimentaires ont aussi été caractérisées au moyen d’enquêtes. les résultats ont confirmé le très fort degré de contamination de la plupart des sols des jardins étudiés, lequel ne peut être expliqué par les seules retombées de poussières. des apports de matériaux contaminés et diverses pratiques ont souvent conduit à accroître notablement les concentrations en polluants des sols. il a été dressé un bilan des productions selon leur aptitude à accumuler les métaux dans les organes consommés et préparés comme le ferait un consommateur soigneux (lavage, épluchage). sur les 1566 échantillons de légumes, aromates et fruits analysés, 51% présentent des concentrations en cadmium et plomb qui excèdent les valeurs réglementant la consommation des denrées alimentaires. au regard de ces résultats, s’est posée la question de l’exposition des jardiniers en lien avec la consommation de leurs productions potagères mais aussi avec l’ingestion de particules de sols. pour mieux évaluer cette exposition, la bioaccessibilité orale des métaux a été prise en compte au lieu des concentrations totales classiquement mesurées dans les légumes et les sols. les résultats obtenus ont été présentés aux jardiniers lors d’entretiens individuels. la restitution a été complétée par des préconisations culturales et/ou alimentaires personnalisées visant à réduire l’imprégnation des populations au plomb et au cadmium. l’évaluation des effets de ces restitutions sur les pratiques a été réalisée un an après la fin de la restitution sur la base d’un nouvel entretien avec les jardiniers concernés. sera présenté un retour d’expérience sur cette démarche, de l’échantillonnage des sols et des productions jusqu’à la restitution auprès des jardiniers des données acquises. |
Auteurs : Derbal Radhouan; Defer Didier; Antczak Emmanuel; Brachelet Franck Moisture content estimation based on thermal analysis method applied to sand JP Journal of Heat and Mass Transfer, 14 issue 2, pp. 247-2751 @article{Derbal2017, title = {Moisture content estimation based on thermal analysis method applied to sand}, author = {Radhouan Derbal and Didier Defer and Emmanuel Antczak and Franck Brachelet}, year = {2017}, date = {2017-01-01}, journal = {JP Journal of Heat and Mass Transfer}, volume = {14 issue 2}, pages = {247-275}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Antczak Emmanuel; Asli Mounir; Brachelet Franck; Brue Flore; Defer Didier; Lucas Alain Monitoring and thermal characterization of flax shives for building thermal insulation 2nd International Conference on Bio-based Building Materials 2017Clermont - Ferrand @conference{Antczak2017, title = {Monitoring and thermal characterization of flax shives for building thermal insulation}, author = {Emmanuel Antczak and Mounir Asli and Franck Brachelet and Flore Brue and Didier Defer and Alain Lucas}, year = {2017}, date = {2017-01-01}, booktitle = {2nd International Conference on Bio-based Building Materials 2017}, organization = {Clermont - Ferrand}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Brachelet Franck; Asli Mounir; Antczak Emmanuel; Brue Flore; Defer Didier; Lucas Alain Hygrothermal behavior of flax shives used as insulation material in an attic of a traditional house International COnference on Materials ans Energy (ICOME 2017)Tianjin China @conference{Brachelet2017, title = {Hygrothermal behavior of flax shives used as insulation material in an attic of a traditional house}, author = {Franck Brachelet and Mounir Asli and Emmanuel Antczak and Flore Brue and Didier Defer and Alain Lucas}, year = {2017}, date = {2017-01-01}, booktitle = {International COnference on Materials ans Energy (ICOME 2017)}, organization = {Tianjin China}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Sassine Emilio; Younsi Zohir; Cherif Yassine; Antczak Emmanuel Case Studies in Construction Materials, 7(Supplement C), pp. 56 - 651ISSN: 2214-5095 @article{SASSINE201756, title = {Thermal performance evaluation of a massive brick wall under real weather conditions via the Conduction Transfer function method}, author = {Emilio Sassine and Zohir Younsi and Yassine Cherif and Emmanuel Antczak}, url = {http://www.sciencedirect.com/science/article/pii/S2214509516301218}, doi = {https://doi.org/10.1016/j.cscm.2017.04.003}, issn = {2214-5095}, year = {2017}, date = {2017-01-01}, journal = {Case Studies in Construction Materials}, volume = {7}, number = {Supplement C}, pages = {56 - 65}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Pelfrêne Aurélie; Waterlot Christophe; Le-Bot Barbara; Glorennec Philippe; Douay Francis A decision-making tool for managing franch polluted sites: Toward an alternative approach to the Unified Barge Method 6-9 November 2017, Varsovie (Pologne) @conference{Pelfrene2017c, title = {A decision-making tool for managing franch polluted sites: Toward an alternative approach to the Unified Barge Method}, author = {Aurélie Pelfrêne and Christophe Waterlot and Barbara Le-Bot and Philippe Glorennec and Francis Douay}, year = {2017}, date = {2017-01-01}, booktitle = {6-9 November 2017, Varsovie (Pologne)}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Kenai Mohamed-Amine; Libessart Laurent; Lassue Stéphane; Defer Didier Impact of plants occultation on energy balance: Experimental study Energy and Buildings, @article{mohamed2017impact, title = {Impact of plants occultation on energy balance: Experimental study}, author = {Mohamed-Amine Kenai and Laurent Libessart and Stéphane Lassue and Didier Defer}, year = {2017}, date = {2017-01-01}, journal = {Energy and Buildings}, publisher = {Elsevier}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Franchomme Magalie; Audouit Christelle; Benchendikh François; Castex Elodie; Delmer Sylvie; Demuynck Sylvain; Grumiaux Fabien; Hinnewinkel Christelle; Laboureur Marie; Litot Jean-Baptiste; Pernin Céline; Schmitt Guillaume; Thierry Clémentine Mise en synergie des réseaux : évaluer la contribution des emprises des infrastrucutres linéaires de RTE et de SNCF réseau aux continuités écologiques Séminaire ITTECOP, 19-20 octobre 2017, Paris @conference{Franchomme2017, title = {Mise en synergie des réseaux : évaluer la contribution des emprises des infrastrucutres linéaires de RTE et de SNCF réseau aux continuités écologiques}, author = {Magalie Franchomme and Christelle Audouit and François Benchendikh and Elodie Castex and Sylvie Delmer and Sylvain Demuynck and Fabien Grumiaux and Christelle Hinnewinkel and Marie Laboureur and Jean-Baptiste Litot and Céline Pernin and Guillaume Schmitt and Clémentine Thierry}, year = {2017}, date = {2017-01-01}, booktitle = {Séminaire ITTECOP, 19-20 octobre 2017, Paris}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Abouaissa Hassane; Alhaj-Hasan Ola; Join Cedric; Fliess Michel; Defer Didier 2017 21st International Conference on System Theory, Control and Computing (ICSTCC)IEEE, @inproceedings{Abouaissa2017, title = {Energy saving for building heating via a simple and efficient model-free control design: First steps with computer simulations}, author = {Hassane Abouaissa and Ola Alhaj-Hasan and Cedric Join and Michel Fliess and Didier Defer}, doi = {10.1109/icstcc.2017.8107126}, year = {2017}, date = {2017-10-01}, booktitle = {2017 21st International Conference on System Theory, Control and Computing (ICSTCC)}, publisher = {IEEE}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {inproceedings} } |
Auteurs : Franke Christine; Patault Edouard; Alary Claire; Lagroix France; Gauthier Arnaud; Abriak Nor-Edine “Magnetic fingerprinting” of fluvial suspended particles in the context of fertile soil erosion: example of the Canche River watershed (Nord-Pas-de-Calais, France Colloque ICRM 2017 (International Conference on Rock Magnetism), 10-14 juillet 2017, Utrecht (Belgique) @conference{Franke2017, title = {“Magnetic fingerprinting” of fluvial suspended particles in the context of fertile soil erosion: example of the Canche River watershed (Nord-Pas-de-Calais, France}, author = {Christine Franke and Edouard Patault and Claire Alary and France Lagroix and Arnaud Gauthier and Nor-Edine Abriak}, year = {2017}, date = {2017-01-01}, booktitle = {Colloque ICRM 2017 (International Conference on Rock Magnetism), 10-14 juillet 2017, Utrecht (Belgique)}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Franke Christine; Patault Edouard; Alary Claire; Lagroix France; Gauthier Arnaud; Abriak Nor-Edine Tracing sources of suspended sediments in fluvial systems by magnetic and geochemical particle characterization PMAG2017 : Magnetisme de la Biosphère aux Planètes telluriques, 17-19 octobre 2017, Toulouse @conference{Franke2017a, title = {Tracing sources of suspended sediments in fluvial systems by magnetic and geochemical particle characterization}, author = {Christine Franke and Edouard Patault and Claire Alary and France Lagroix and Arnaud Gauthier and Nor-Edine Abriak}, year = {2017}, date = {2017-01-01}, booktitle = {PMAG2017 : Magnetisme de la Biosphère aux Planètes telluriques, 17-19 octobre 2017, Toulouse}, note = {ACTN}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Abbas Oras; Abou-Rjeily Yves; Sadek Marwan; Shahrour Isam A large-scale experimentation of the smart sewage system Water and Environment Journal, 31(4), pp. 515-5211ISSN: 1747-6585 @article{RN323, title = {A large-scale experimentation of the smart sewage system}, author = {Oras Abbas and Yves Abou-Rjeily and Marwan Sadek and Isam Shahrour}, doi = {10.1111/wej.12273}, issn = {1747-6585}, year = {2017}, date = {2017-01-01}, journal = {Water and Environment Journal}, volume = {31}, number = {4}, pages = {515-521}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Abou-Rjeily Yves; Abbas Oras; Sadek Marwan; Shahrour Isam; Hage-Chehade Fadi Flood forecasting within urban drainage systems using NARX neural network Water Science and Technology, 76(9), pp. 2401-24121ISSN: 0273-1223 @article{RN324, title = {Flood forecasting within urban drainage systems using NARX neural network}, author = {Yves Abou-Rjeily and Oras Abbas and Marwan Sadek and Isam Shahrour and Fadi Hage-Chehade}, doi = {10.2166/wst.2017.409}, issn = {0273-1223}, year = {2017}, date = {2017-01-01}, journal = {Water Science and Technology}, volume = {76}, number = {9}, pages = {2401-2412}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Farah E; Shahrour Isam Water Resources Management, 31(15), pp. 4821-48331ISSN: 0920-4741 @article{RN322, title = {Leakage Detection Using Smart Water System: Combination of Water Balance and Automated Minimum Night Flow}, author = {E Farah and Isam Shahrour}, url = {<Go to ISI>://WOS:000414039900007}, doi = {10.1007/s11269-017-1780-9}, issn = {0920-4741}, year = {2017}, date = {2017-01-01}, journal = {Water Resources Management}, volume = {31}, number = {15}, pages = {4821-4833}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Leang Enghok; Tittelein Pierre; Zalewski Laurent; Lassue Stéphane Numerical study of a composite Trombe solar wall integrating microencapsulated PCM Energy Procedia, 122(Supplement C), pp. 1009–10141ISSN: 1876-6102 @article{leang_numerical_2017, title = {Numerical study of a composite Trombe solar wall integrating microencapsulated PCM}, author = {Enghok Leang and Pierre Tittelein and Laurent Zalewski and Stéphane Lassue}, url = {http://www.sciencedirect.com/science/article/pii/S1876610217334276}, doi = {10.1016/j.egypro.2017.07.467}, issn = {1876-6102}, year = {2017}, date = {2017-01-01}, urldate = {2017-11-13}, journal = {Energy Procedia}, volume = {122}, number = {Supplement C}, pages = {1009--1014}, series = {CISBAT 2017 International ConferenceFuture Buildings & Districts – Energy Efficiency from Nano to Urban Scale}, abstract = {First, this article introduces a comparison between experimental results and the results issued from a numerical model of a composite Trombe solar wall incorporating a concrete storage wall with the help of the Dymola/Modelica software. The validation of the model is realized from the comparison between simulated and measured heat flux, external and internal surface temperatures and fluid temperatures in a ventilated air layer. Then, the numerical model is used to simulate a composite solar wall where the concrete storage wall is replaced by a mortar mixed with microencapsulated phase change material (PCM). This allows to study and compare the thermal behavior and the energy performances of the two composite solar walls.}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } First, this article introduces a comparison between experimental results and the results issued from a numerical model of a composite Trombe solar wall incorporating a concrete storage wall with the help of the Dymola/Modelica software. The validation of the model is realized from the comparison between simulated and measured heat flux, external and internal surface temperatures and fluid temperatures in a ventilated air layer. Then, the numerical model is used to simulate a composite solar wall where the concrete storage wall is replaced by a mortar mixed with microencapsulated phase change material (PCM). This allows to study and compare the thermal behavior and the energy performances of the two composite solar walls. |
Auteurs : Stutz Benoît; Pierres Nolwenn Le; Kuznik Frédéric; Johannes Kevyn; Barrio Elena Palomo Del; Bédécarrats Jean-Pierre; Gibout Stéphane; Marty Philippe; Zalewski Laurent; Soto Jerome; Mazet Nathalie; Olives Régis; Bezian Jean-Jacques; Minh Doan Pham Storage of thermal solar energy Comptes Rendus Physique, 18(7–8), pp. 401–4141ISSN: 1631-0705 @article{stutz_storage_2017, title = {Storage of thermal solar energy}, author = {Benoît Stutz and Nolwenn Le Pierres and Frédéric Kuznik and Kevyn Johannes and Elena Palomo Del Barrio and Jean-Pierre Bédécarrats and Stéphane Gibout and Philippe Marty and Laurent Zalewski and Jerome Soto and Nathalie Mazet and Régis Olives and Jean-Jacques Bezian and Doan Pham Minh}, url = {https://www.sciencedirect.com/science/article/pii/S1631070517300646}, doi = {10.1016/j.crhy.2017.09.008}, issn = {1631-0705}, year = {2017}, date = {2017-09-01}, urldate = {2017-12-01}, journal = {Comptes Rendus Physique}, volume = {18}, number = {7–8}, pages = {401--414}, series = {Demain l’énergie}, abstract = {Solar thermal energy storage is used in many applications, from building to concentrating solar power plants and industry. The temperature levels encountered range from ambient temperature to more than 1000 °C, and operating times range from a few hours to several months. This paper reviews different types of solar thermal energy storage (sensible heat, latent heat, and thermochemical storage) for low- (40–120 °C) and medium-to-high-temperature (120–1000 °C) applications.}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } Solar thermal energy storage is used in many applications, from building to concentrating solar power plants and industry. The temperature levels encountered range from ambient temperature to more than 1000 °C, and operating times range from a few hours to several months. This paper reviews different types of solar thermal energy storage (sensible heat, latent heat, and thermochemical storage) for low- (40–120 °C) and medium-to-high-temperature (120–1000 °C) applications. |
Auteurs : Ghemari Chedliya; Waterlot Christophe; Ayari Anas; Leclercq Julie; Douay Francis; Nasri-Ammar Karima Assessment of heavy metals in soil and terrestrial isopod Porcellio laevis in Tunisian industrialized areas Environmental Earth Sciences, 76, pp. 623-6361 @article{Ghemari2017, title = {Assessment of heavy metals in soil and terrestrial isopod Porcellio laevis in Tunisian industrialized areas}, author = {Chedliya Ghemari and Christophe Waterlot and Anas Ayari and Julie Leclercq and Francis Douay and Karima Nasri-Ammar}, year = {2017}, date = {2017-01-01}, journal = {Environmental Earth Sciences}, volume = {76}, pages = {623-636}, abstract = {In this study, data on several metals (cd, pb, zn and cu) in soil and isopod porcellio laevis taken at 21 sites from the most important industrial areas in tunisia (bizerte, nabeul, zaghouan, sfax and gabes) were presented. heavy metal concentrations in both soil samples and isopods were determined using atomic absorption spectrometry. soil contamination was estimated using the contamination factor (cf). on the other hand, the bioaccumulation factor (baf) was determined to estimate metal accumulation in isopods. the cf values show that the level of contamination varies between sampled soils, which may be due to the source of pollution at each site. the baf values allow defining the order of accumulation in p. laevis which was classified for the majority of the sampled sites as a macro-concentrator of cu and zn and a deconcentrator of cd with some exceptions. a principal component analysis (pca) was conducted between soil properties (ph, om and caco3) and metal concentrations in soils. through pca, we obtained four groups in which soils were distinguished by their physicochemical properties and their metal concentrations. moreover, linear multiple regressions with a downward stepwise procedure were conducted to test the relationships between the physicochemical parameters and metal concentrations in both soils and isopods. thus, positive correlations (0.78 < r 2 < 0.99) were obtained for pb considering dataset from the groups 1, 2 and for zn with data of groups 2 and 3. finally, results showed that p. laevis could be used as a bio-indicator for monitoring and reducing the impact of pollution in terrestrial ecosystems}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } In this study, data on several metals (cd, pb, zn and cu) in soil and isopod porcellio laevis taken at 21 sites from the most important industrial areas in tunisia (bizerte, nabeul, zaghouan, sfax and gabes) were presented. heavy metal concentrations in both soil samples and isopods were determined using atomic absorption spectrometry. soil contamination was estimated using the contamination factor (cf). on the other hand, the bioaccumulation factor (baf) was determined to estimate metal accumulation in isopods. the cf values show that the level of contamination varies between sampled soils, which may be due to the source of pollution at each site. the baf values allow defining the order of accumulation in p. laevis which was classified for the majority of the sampled sites as a macro-concentrator of cu and zn and a deconcentrator of cd with some exceptions. a principal component analysis (pca) was conducted between soil properties (ph, om and caco3) and metal concentrations in soils. through pca, we obtained four groups in which soils were distinguished by their physicochemical properties and their metal concentrations. moreover, linear multiple regressions with a downward stepwise procedure were conducted to test the relationships between the physicochemical parameters and metal concentrations in both soils and isopods. thus, positive correlations (0.78 < r 2 < 0.99) were obtained for pb considering dataset from the groups 1, 2 and for zn with data of groups 2 and 3. finally, results showed that p. laevis could be used as a bio-indicator for monitoring and reducing the impact of pollution in terrestrial ecosystems |
Auteurs : Pignatelli Isabella; Marrocchi Yves; Mugnaioli Enrico; Bourdelle Franck; Gounelle Matthieu Mineralogical, crystallographic and redox features of the earliest stages of fluid alteration in CM chondrites Geochimica et Cosmochimica Acta, pp. 106-1221 @article{Pignatelli2017, title = {Mineralogical, crystallographic and redox features of the earliest stages of fluid alteration in CM chondrites}, author = {Isabella Pignatelli and Yves Marrocchi and Enrico Mugnaioli and Franck Bourdelle and Matthieu Gounelle}, year = {2017}, date = {2017-01-01}, journal = {Geochimica et Cosmochimica Acta}, pages = {106-122}, abstract = {The cm chondrites represent the largest group of hydrated meteorites and span a wide range of conditions, from less altered (i.e., cm2) down to heavily altered (i.e., cm1). the paris chondrite is considered the least altered cm and thus enables the earliest stages of aqueous alteration processes to be deciphered. here, we report results from a nanoscale study of tochilinite/cronstedtite intergrowths (tcis) in paris—tcis being the emblematic secondary mineral assemblages of cm chondrites, formed from the alteration of fe-ni metal beads (type-i tcis) and anhydrous silicates (type-ii tcis). we combined high-resolution transmission electron microscopy, scanning transmission x-ray microscopy and electron diffraction tomography to characterize the crystal structure, crystal chemistry and redox state of tcis. the data obtained are useful to reconstruct the alteration conditions of paris and to compare them with those of other meteorites. our results show that tochilinite in paris is characterized by a high hydroxide layer content (n = 2.1–2.2) regardless of the silicate precursors. when examined alongside other cms, it appears that the hydroxide layer and iron contents of tochilinites correlate with the degree of alteration experienced by the chondrites. the fe3+/σfe ratios of tcis are high: 8–15% in tochilinite, 33–60% in cronstedtite and 70–80% in hydroxides. these observations suggest that alteration of cm chondrites took place under oxidizing conditions that could have been induced by significant h2 release during serpentinization. similar results were recently reported in cr chondrites (le guillou et al., 2015), suggesting that the process(es) controlling the redox state of the secondary mineral assemblages were quite similar in the cm and cr parent bodies despite the different alteration conditions. according to our mineralogical and crystallographic survey, the formation of tcis in paris occurred at temperatures lower than 100 °c, under neutral, slightly alkaline conditions that favored the formation of both tochilinite and cronstedtite. during the course of alteration, the reduction in sulfur activity and/or the decrease of temperature prevented tochilinite crystallization and favoured the formation of cronstedtite and iron hydroxides. we suggest that iron hydroxides probably formed as ferrihydrite and then progressively converted to goethite between 50° and 80 °c, a temperature range that is also favorable for cronstedtite formation. the presence of cronstedtite plays a key role in the reconstruction of the alteration history, demonstrating that the alteration of paris took place by way of serpentinization processes similar to those described on the earth.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The cm chondrites represent the largest group of hydrated meteorites and span a wide range of conditions, from less altered (i.e., cm2) down to heavily altered (i.e., cm1). the paris chondrite is considered the least altered cm and thus enables the earliest stages of aqueous alteration processes to be deciphered. here, we report results from a nanoscale study of tochilinite/cronstedtite intergrowths (tcis) in paris—tcis being the emblematic secondary mineral assemblages of cm chondrites, formed from the alteration of fe-ni metal beads (type-i tcis) and anhydrous silicates (type-ii tcis). we combined high-resolution transmission electron microscopy, scanning transmission x-ray microscopy and electron diffraction tomography to characterize the crystal structure, crystal chemistry and redox state of tcis. the data obtained are useful to reconstruct the alteration conditions of paris and to compare them with those of other meteorites. our results show that tochilinite in paris is characterized by a high hydroxide layer content (n = 2.1–2.2) regardless of the silicate precursors. when examined alongside other cms, it appears that the hydroxide layer and iron contents of tochilinites correlate with the degree of alteration experienced by the chondrites. the fe3+/σfe ratios of tcis are high: 8–15% in tochilinite, 33–60% in cronstedtite and 70–80% in hydroxides. these observations suggest that alteration of cm chondrites took place under oxidizing conditions that could have been induced by significant h2 release during serpentinization. similar results were recently reported in cr chondrites (le guillou et al., 2015), suggesting that the process(es) controlling the redox state of the secondary mineral assemblages were quite similar in the cm and cr parent bodies despite the different alteration conditions. according to our mineralogical and crystallographic survey, the formation of tcis in paris occurred at temperatures lower than 100 °c, under neutral, slightly alkaline conditions that favored the formation of both tochilinite and cronstedtite. during the course of alteration, the reduction in sulfur activity and/or the decrease of temperature prevented tochilinite crystallization and favoured the formation of cronstedtite and iron hydroxides. we suggest that iron hydroxides probably formed as ferrihydrite and then progressively converted to goethite between 50° and 80 °c, a temperature range that is also favorable for cronstedtite formation. the presence of cronstedtite plays a key role in the reconstruction of the alteration history, demonstrating that the alteration of paris took place by way of serpentinization processes similar to those described on the earth. |
Auteurs : Pourrut Bertrand; Al-Souki Karim; Nsanganwimana Florien; Liné Clarisse; Bastia G; Douay Francis Use of Miscanthus x giganteus to phytomanage large contaminated areas: lessons from Northern France IV International conference “Plant Ontogenesis in Natural and Transformed Environment, 4-6 October 2017, Lviv (Ukraine) @conference{Pourrut2017, title = {Use of Miscanthus x giganteus to phytomanage large contaminated areas: lessons from Northern France}, author = {Bertrand Pourrut and Karim Al-Souki and Florien Nsanganwimana and Clarisse Liné and G Bastia and Francis Douay}, year = {2017}, date = {2017-01-01}, booktitle = {IV International conference “Plant Ontogenesis in Natural and Transformed Environment, 4-6 October 2017, Lviv (Ukraine)}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Pourrut Bertrand; Boccia Priscilla; Sturchio Elena Use of comet assay as an efficient biomarker for plant biomonitoring and phytomanagement of contaminated sites 3rd World Congress on New Technologies (NewTech'17). 6-8 June 2017, Rome (Italie) @conference{Pourrut2017a, title = {Use of comet assay as an efficient biomarker for plant biomonitoring and phytomanagement of contaminated sites}, author = {Bertrand Pourrut and Priscilla Boccia and Elena Sturchio}, year = {2017}, date = {2017-01-01}, booktitle = {3rd World Congress on New Technologies (NewTech'17). 6-8 June 2017, Rome (Italie)}, abstract = {During the last decade plants have been increasingly used in ecotoxicological studies and environmental biomonitoring. in order to evaluate the impact of stress (biotic or abiotic) on plants, it is important to evaluate their health. this can be realized at the macroscopic scale (growth, dry or fresh weight…) or at the molecular scale, using biomarkers. during the same period, the application of the comet assay has been established as one of the most interesting techniques in eco-genotoxicology. it is a rapid, versatile, sensitive and relatively inexpensive method for measuring dna damages and repairs in individual cells. the aim of this work was to evaluate the interest of the comet assay to monitor pollutant impacts on higher plants growing on contaminated sites and to select plant species to remediate contaminated areas. in a first study, we investigated the potential impacts of contaminants from a hazardous waste site, in a controlled environment, on vicia faba, as a bioindicator plant. soil samples were collected from a former industrial area in italy and their phytotoxicity and genotoxicity were investigated. in the case of the controlled environment we evaluated the environmental damage after a simulated accidental release of toxic substances in soil. in this case we evaluated the contamination effects on soil-plant system and detected dna damages by short-term genotoxicity tests (comet assay and micronuclei tests) performed on polluted soils and on gravitational water. our studies demonstrated that the comet assay is a sensitive, rapid and cost-effective technique for the detection of dna damage, which is ideally suited as a biomarker of genotoxicity for biomonitoring. in a second study, we investigated sub-lethal effects of contaminated soil exposure on three plant species which have been described as good candidates for phytomanagement of contaminated areas: ryegrass (lolium perenne), clover (trifolium repens) and miscanthus (miscanthus x giganteus). plants were grown on soils contaminated with heavy metals by a former lead smelter in northern france. we analyzed several biomarkers (oxidative stress, lipid peroxidation, photosynthetic pigments) to evaluate plant health and we compared them with dna degradation measured by comet assay. our results clearly demonstrated different metal tolerances among these plants. despite its potential to stabilize pollutants in soils, ryegrass plants exhibited high level of oxidative stress, lipid degradation and dna stand breaks. these results challenge the suitability of this plant for a long-term management of contaminated soils. in the other hands, miscanthus plants showed little effects of metals, event at extremely high concentrations. this confirm this plant as good candidate for phytomanagement. for each plants, strong correlations were founded between comet assay results and other biomarkers after short term exposure and between comet assay and macroscopic markers (growth and weight) after long term exposure. these results confirm the interest of the use of comet assay to select potential candidate plants for phytoremediation.}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } During the last decade plants have been increasingly used in ecotoxicological studies and environmental biomonitoring. in order to evaluate the impact of stress (biotic or abiotic) on plants, it is important to evaluate their health. this can be realized at the macroscopic scale (growth, dry or fresh weight…) or at the molecular scale, using biomarkers. during the same period, the application of the comet assay has been established as one of the most interesting techniques in eco-genotoxicology. it is a rapid, versatile, sensitive and relatively inexpensive method for measuring dna damages and repairs in individual cells. the aim of this work was to evaluate the interest of the comet assay to monitor pollutant impacts on higher plants growing on contaminated sites and to select plant species to remediate contaminated areas. in a first study, we investigated the potential impacts of contaminants from a hazardous waste site, in a controlled environment, on vicia faba, as a bioindicator plant. soil samples were collected from a former industrial area in italy and their phytotoxicity and genotoxicity were investigated. in the case of the controlled environment we evaluated the environmental damage after a simulated accidental release of toxic substances in soil. in this case we evaluated the contamination effects on soil-plant system and detected dna damages by short-term genotoxicity tests (comet assay and micronuclei tests) performed on polluted soils and on gravitational water. our studies demonstrated that the comet assay is a sensitive, rapid and cost-effective technique for the detection of dna damage, which is ideally suited as a biomarker of genotoxicity for biomonitoring. in a second study, we investigated sub-lethal effects of contaminated soil exposure on three plant species which have been described as good candidates for phytomanagement of contaminated areas: ryegrass (lolium perenne), clover (trifolium repens) and miscanthus (miscanthus x giganteus). plants were grown on soils contaminated with heavy metals by a former lead smelter in northern france. we analyzed several biomarkers (oxidative stress, lipid peroxidation, photosynthetic pigments) to evaluate plant health and we compared them with dna degradation measured by comet assay. our results clearly demonstrated different metal tolerances among these plants. despite its potential to stabilize pollutants in soils, ryegrass plants exhibited high level of oxidative stress, lipid degradation and dna stand breaks. these results challenge the suitability of this plant for a long-term management of contaminated soils. in the other hands, miscanthus plants showed little effects of metals, event at extremely high concentrations. this confirm this plant as good candidate for phytomanagement. for each plants, strong correlations were founded between comet assay results and other biomarkers after short term exposure and between comet assay and macroscopic markers (growth and weight) after long term exposure. these results confirm the interest of the use of comet assay to select potential candidate plants for phytoremediation. |
Auteurs : Pourrut Bertrand; Liné Clarisse; Al-Souki Karim; Dorais Martine; Gruyer Nicolas Development of a high-throughput multi-parameter biomarker set to evaluate plant species to manage contaminated areas 14th International Phytotechnologies Conference, 25-29 Septembre 2017, Montreal (Canada) @conference{Pourrut2017b, title = {Development of a high-throughput multi-parameter biomarker set to evaluate plant species to manage contaminated areas}, author = {Bertrand Pourrut and Clarisse Liné and Karim Al-Souki and Martine Dorais and Nicolas Gruyer}, year = {2017}, date = {2017-01-01}, booktitle = {14th International Phytotechnologies Conference, 25-29 Septembre 2017, Montreal (Canada)}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Hechelski Marie; Dufrénoy Pierrick; Louvel Brice; Ghinet Alina; Waterlot Christophe Toward a new approach in drug design: from polluted soil an non hyper-accumulating plants to anti-inflammatory agent 4th French-Romanian Colloquium on Medicinal Chemistry, 5-7 October 2017, Iasi (Roumanie) @conference{Hechelski2017, title = {Toward a new approach in drug design: from polluted soil an non hyper-accumulating plants to anti-inflammatory agent}, author = {Marie Hechelski and Pierrick Dufrénoy and Brice Louvel and Alina Ghinet and Christophe Waterlot}, year = {2017}, date = {2017-01-01}, booktitle = {4th French-Romanian Colloquium on Medicinal Chemistry, 5-7 October 2017, Iasi (Roumanie)}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Pruvot Christelle; Douay Francis Usages et qualité des sols: Gestion des sols contaminés par les activités humaines Sols convoités, sols en danger: comment les protéger? Terre de liens - ISA Lille, 8 Juin 2017, Lille @conference{Pruvot2017, title = {Usages et qualité des sols: Gestion des sols contaminés par les activités humaines}, author = {Christelle Pruvot and Francis Douay}, year = {2017}, date = {2017-01-01}, booktitle = {Sols convoités, sols en danger: comment les protéger? Terre de liens - ISA Lille, 8 Juin 2017, Lille}, abstract = {Usages et qualité des sols: gestion des sols contaminés par les activités humaines}, note = {OV}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Usages et qualité des sols: gestion des sols contaminés par les activités humaines |
Auteurs : Janus Adeline Intérêt d’un amendement organo-minéral pour remédier des sols de friches industrielles multicontaminés en milieu urbain Thèse de l’Université de Lille 1, 321pp, @phdthesis{Janus2017c, title = {Intérêt d’un amendement organo-minéral pour remédier des sols de friches industrielles multicontaminés en milieu urbain}, author = {Adeline Janus}, year = {2017}, date = {2017-01-01}, school = {Thèse de l’Université de Lille 1, 321pp}, abstract = {De nos jours, la contamination des sols par les polluants organiques et inorganiques est une problématique majeure. des techniques douces de remédiation, reposant sur l’utilisation de plantes et de microorganismes, associés à des amendements ou non, sont étudiées pour gérer ces sols. parmi les différents amendements, le biochar est présenté dans la littérature comme pouvant répondre à ces attentes. ce travail se propose d’évaluer l’impact des paramètres de pyrolyse sur les caractéristiques de huit biochars élaborés à partir de miscanthus x giganteus, cultivé sur un sol contaminé en métaux, et de sélectionner le(s) biochar(s) susceptible(s) d’être le(s) plus performant(s) en termes de remédiation de sols contaminés en métaux (cd, pb, zn) et/ou hap. il a été mis en évidence une forte influence de la température de pyrolyse sur les caractéristiques des biochars. de plus, les biochars ont présenté de fortes capacités de sorption des trois métaux et des hap en solution, notamment pour les biochars produits à 600°c. des expérimentations réalisées avec un sol artificiel et une terre agricole contaminés artificiellement ont mis en évidence la capacité de certains biochars à diminuer la disponibilité environnementale, la biodisponibilité et la bioaccessibilité orale des métaux et des hap. sur la base des résultats obtenus, un biochar a été sélectionné comme répondant le mieux aux attentes en termes de gestion de sols multicontaminés. compte tenu des modifications structurelles du biochar dans les sols, il conviendrait de valider ces résultats sur le long terme, en condition in situ, tout en s’assurant de l’innocuité du biochar étudié et en intégrant les aspects socioéconomiques.}, note = {TH}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {phdthesis} } De nos jours, la contamination des sols par les polluants organiques et inorganiques est une problématique majeure. des techniques douces de remédiation, reposant sur l’utilisation de plantes et de microorganismes, associés à des amendements ou non, sont étudiées pour gérer ces sols. parmi les différents amendements, le biochar est présenté dans la littérature comme pouvant répondre à ces attentes. ce travail se propose d’évaluer l’impact des paramètres de pyrolyse sur les caractéristiques de huit biochars élaborés à partir de miscanthus x giganteus, cultivé sur un sol contaminé en métaux, et de sélectionner le(s) biochar(s) susceptible(s) d’être le(s) plus performant(s) en termes de remédiation de sols contaminés en métaux (cd, pb, zn) et/ou hap. il a été mis en évidence une forte influence de la température de pyrolyse sur les caractéristiques des biochars. de plus, les biochars ont présenté de fortes capacités de sorption des trois métaux et des hap en solution, notamment pour les biochars produits à 600°c. des expérimentations réalisées avec un sol artificiel et une terre agricole contaminés artificiellement ont mis en évidence la capacité de certains biochars à diminuer la disponibilité environnementale, la biodisponibilité et la bioaccessibilité orale des métaux et des hap. sur la base des résultats obtenus, un biochar a été sélectionné comme répondant le mieux aux attentes en termes de gestion de sols multicontaminés. compte tenu des modifications structurelles du biochar dans les sols, il conviendrait de valider ces résultats sur le long terme, en condition in situ, tout en s’assurant de l’innocuité du biochar étudié et en intégrant les aspects socioéconomiques. |
Auteurs : Rorat Agnieszka; Courtois Pauline; Lemière Sébastien; Attard E; Guyoneaud Rémy; Levard C; Vandenbulcke Franck ETNA2 project: Silver ecotoxicology in terrestrial environments International Conference of Environmental Biotechnology, 12th December 2017, Czestochowa (Poland) @conference{Rorat2017b, title = {ETNA2 project: Silver ecotoxicology in terrestrial environments}, author = {Agnieszka Rorat and Pauline Courtois and Sébastien Lemière and E Attard and Rémy Guyoneaud and C Levard and Franck Vandenbulcke}, year = {2017}, date = {2017-01-01}, booktitle = {International Conference of Environmental Biotechnology, 12th December 2017, Czestochowa (Poland)}, abstract = {Due to the increasing incorporation of silver nanoparticles (agnp) in consumer products, silver contamination of sewage sludge may increase and have environmental impacts. indeed sewage sludge are sometimes used in agriculture as fertilizers. in such a context, our project etna2 propose to monitor the silver concentrations in selected sewage sludge coming from southern poland during 2 years and examine their evolution in term of concentrations. in parallel, the assessment of the terrestrial ecotoxicity of silver ions, silver nanoparticles (agnp) and their transformation products (sulphides of silver) will be conducted. therefore, such ecotoxicological assessment will be done using key organisms of soil functioning which are affected by chemical contamination: microorganisms and earthworms. exposures of the ecotoxicologically important test species eisenia fetida were conducted in mesocosms containing agricultural reference soil contaminated by sewage sludge, ag ions, agnp or silver transformation products. these compounds were added to the soil or through the sludge after fermentation. our aim is to address the lack of informations concerning the question of silver in soil ecotoxicology. the impact of ag on soil microflora communities was explored as preliminary experiments evidenced the bactericidal properties of ag in this environmental context. a better understanding of the effects of ag, depending on its form (sulphides from wwtp sludge, ag ions and agnps) will be achieved mainly through genomic and trancriptomic approaches combined with full physico-chemical characterization. analysis will be conducted to make a link between silver evolution/ behavior in sludge and soils and their terrestrial ecotoxicity}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Due to the increasing incorporation of silver nanoparticles (agnp) in consumer products, silver contamination of sewage sludge may increase and have environmental impacts. indeed sewage sludge are sometimes used in agriculture as fertilizers. in such a context, our project etna2 propose to monitor the silver concentrations in selected sewage sludge coming from southern poland during 2 years and examine their evolution in term of concentrations. in parallel, the assessment of the terrestrial ecotoxicity of silver ions, silver nanoparticles (agnp) and their transformation products (sulphides of silver) will be conducted. therefore, such ecotoxicological assessment will be done using key organisms of soil functioning which are affected by chemical contamination: microorganisms and earthworms. exposures of the ecotoxicologically important test species eisenia fetida were conducted in mesocosms containing agricultural reference soil contaminated by sewage sludge, ag ions, agnp or silver transformation products. these compounds were added to the soil or through the sludge after fermentation. our aim is to address the lack of informations concerning the question of silver in soil ecotoxicology. the impact of ag on soil microflora communities was explored as preliminary experiments evidenced the bactericidal properties of ag in this environmental context. a better understanding of the effects of ag, depending on its form (sulphides from wwtp sludge, ag ions and agnps) will be achieved mainly through genomic and trancriptomic approaches combined with full physico-chemical characterization. analysis will be conducted to make a link between silver evolution/ behavior in sludge and soils and their terrestrial ecotoxicity |
Auteurs : Janus Adeline; Goulas Anaïs; Pelfrêne Aurélie; Douay Francis; Waterlot Christophe Determination of PAHs by ultra fast liquid chromatography using a coreshell technology – Application to their determination after using biochar as adsorbent Measurement, 106, pp. 137-1421 @article{Janus2017a, title = {Determination of PAHs by ultra fast liquid chromatography using a coreshell technology – Application to their determination after using biochar as adsorbent}, author = {Adeline Janus and Anaïs Goulas and Aurélie Pelfrêne and Francis Douay and Christophe Waterlot}, year = {2017}, date = {2017-01-01}, journal = {Measurement}, volume = {106}, pages = {137-142}, abstract = {The c18 column (250 mm 4.6 mm) packed with 5 lm core-shell particles was used in an effort to optimize the separation of 8 polycyclic aromatic hydrocarbons under very low pressure values (44–52 bars), low temperature (16 c) and in 13 min. chromatogram and peaks of each polycyclic aromatic hydrocarbon studied, obtained using an ultra fast liquid chromatography fitted with this column and equipped with a diode array detector, were compared with those obtained using two other traditional c18 columns, packed with fully porous 5 lm particles, usually used in our laboratory and specifically designed for the separation of polycyclic aromatic hydrocarbons. thinnest peaks, highest sensitivity and efficiency are the main results related to the core-shell technology of the recent kinetex column compared to more common c18 columns due to the bed uniformity and packing quality of the recent core-shell column. on the other hand, reduced retention time was highlighted for each polycyclic aromatic hydrocarbon using the column packed with core-shell particles resulting from the lower surface area of these particles compared to the totally porous particles of the both other columns used. limits of detection and quantification, linearity range and repeatability were determined for the method developed with the core-shell column. a practical application was realized by evaluating the sorption capacity of the 8 polycyclic aromatic hydrocarbons studied in mixture using a biochar made from woody plants. to this end, the biochar was mixed with aqueous solution spiked with the mixture of polycyclic aromatic hydrocarbons and a kinetic study of their sorption was conducted. sorption percentage was higher than 89% for each polycyclic aromatic hydrocarbon studied showing that the studied biochar could be good and low cost alternative products for the sorption of this type of pollutants.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The c18 column (250 mm 4.6 mm) packed with 5 lm core-shell particles was used in an effort to optimize the separation of 8 polycyclic aromatic hydrocarbons under very low pressure values (44–52 bars), low temperature (16 c) and in 13 min. chromatogram and peaks of each polycyclic aromatic hydrocarbon studied, obtained using an ultra fast liquid chromatography fitted with this column and equipped with a diode array detector, were compared with those obtained using two other traditional c18 columns, packed with fully porous 5 lm particles, usually used in our laboratory and specifically designed for the separation of polycyclic aromatic hydrocarbons. thinnest peaks, highest sensitivity and efficiency are the main results related to the core-shell technology of the recent kinetex column compared to more common c18 columns due to the bed uniformity and packing quality of the recent core-shell column. on the other hand, reduced retention time was highlighted for each polycyclic aromatic hydrocarbon using the column packed with core-shell particles resulting from the lower surface area of these particles compared to the totally porous particles of the both other columns used. limits of detection and quantification, linearity range and repeatability were determined for the method developed with the core-shell column. a practical application was realized by evaluating the sorption capacity of the 8 polycyclic aromatic hydrocarbons studied in mixture using a biochar made from woody plants. to this end, the biochar was mixed with aqueous solution spiked with the mixture of polycyclic aromatic hydrocarbons and a kinetic study of their sorption was conducted. sorption percentage was higher than 89% for each polycyclic aromatic hydrocarbon studied showing that the studied biochar could be good and low cost alternative products for the sorption of this type of pollutants. |
Auteurs : Rorat Agnieszka; Courtois Pauline; Lemière Sébastien; Vandenbulcke Franck Silver and silver nanoparticles as a threat for terrestrial ecosystems The XXVI International Symposium “Molecular and Physiological Aspects of Regulatory Processes of the Organism, 16 September 2017, Kraków (Poland) @conference{Rorat2017c, title = {Silver and silver nanoparticles as a threat for terrestrial ecosystems}, author = {Agnieszka Rorat and Pauline Courtois and Sébastien Lemière and Franck Vandenbulcke}, year = {2017}, date = {2017-01-01}, booktitle = {The XXVI International Symposium “Molecular and Physiological Aspects of Regulatory Processes of the Organism, 16 September 2017, Kraków (Poland)}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Janus Adeline; Pelfrêne Aurélie; Sahmer Karin; Heymans Sophie; Deboffe Christophe; Douay Francis; Waterlot Christophe Value of biochars from Miscanthus x giganteus cultivated on contaminated soils to decrease the availability of metals in multicontaminated aqueous solutions Environmental Science and Pollution Research, 24(22), pp. 18204-182171 @article{Janus2017b, title = {Value of biochars from Miscanthus x giganteus cultivated on contaminated soils to decrease the availability of metals in multicontaminated aqueous solutions}, author = {Adeline Janus and Aurélie Pelfrêne and Karin Sahmer and Sophie Heymans and Christophe Deboffe and Francis Douay and Christophe Waterlot}, year = {2017}, date = {2017-01-01}, journal = {Environmental Science and Pollution Research}, volume = {24}, number = {22}, pages = {18204-18217}, abstract = {The objective of this study was to evaluate the sorption efficiency of eight biochars, made from miscanthus x giganteus cultivated on contaminated agricultural soil, in aqueous solutions contaminated with metals alone or mixed with polycyclic aromatic hydrocarbons. these biochars were produced in different pyrolysis conditions (temperature, 400/600 °c; heating rate, 5/10 °c min−1; duration, 45/90 min) and compared with an uncontaminated commercialized biochar made of wood. the physicochemical characterization of the miscanthus biochars confirmed the impact of the pyrolysis on the biochar parameters with substantial differences between the biochars in terms of ph, cation exchange capacity, and specific surface area. the sorption experiment showed higher sorption efficiency of cd, pb, and zn for the miscanthus biochars produced at 600 °c compared with the biochars produced at 400 °c when the aqueous solutions were mono- or multicontaminated. furthermore, the desorption study showed that the sorption process was largely irreversible. therefore, the high sorption capacity of miscanthus biochars and the low sorption reversibility confirmed that these biochars are a suitable sorbent for metals.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The objective of this study was to evaluate the sorption efficiency of eight biochars, made from miscanthus x giganteus cultivated on contaminated agricultural soil, in aqueous solutions contaminated with metals alone or mixed with polycyclic aromatic hydrocarbons. these biochars were produced in different pyrolysis conditions (temperature, 400/600 °c; heating rate, 5/10 °c min−1; duration, 45/90 min) and compared with an uncontaminated commercialized biochar made of wood. the physicochemical characterization of the miscanthus biochars confirmed the impact of the pyrolysis on the biochar parameters with substantial differences between the biochars in terms of ph, cation exchange capacity, and specific surface area. the sorption experiment showed higher sorption efficiency of cd, pb, and zn for the miscanthus biochars produced at 600 °c compared with the biochars produced at 400 °c when the aqueous solutions were mono- or multicontaminated. furthermore, the desorption study showed that the sorption process was largely irreversible. therefore, the high sorption capacity of miscanthus biochars and the low sorption reversibility confirmed that these biochars are a suitable sorbent for metals. |
Auteurs : ADEME ; Bert Valérie; Douay Francis; Faure Olivier; Cadière Frédérique Les phytotechnologies appliquées aux sites et sols pollués (nouveaux résultats de recherche et démonstration) ADEME @techreport{ADEME2017, title = {Les phytotechnologies appliquées aux sites et sols pollués (nouveaux résultats de recherche et démonstration)}, author = {ADEME and Valérie Bert and Francis Douay and Olivier Faure and Frédérique Cadière}, year = {2017}, date = {2017-01-01}, institution = {ADEME}, abstract = {Les phytotechnologies appliquées à la gestion des sites pollués regroupent un ensemble de techniques qui utilisent in situ des espèces végétales pour contenir, extraire ou dégrader des polluants inorganiques ou organiques du sol. Ces techniques, bien que connues et relativement bien perçues par les gestionnaires et opérateurs des sites pollués, restent encore émergentes sur les marchés des techniques de gestion des sites et sols pollués, notamment par manque de recul opérationnel et d’informations sur les possibilités de valorisation de la biomasse produite et les coûts et bénéfices associés. Cet ouvrage présente de nouveaux résultats de recherche et de démonstration issues de projets encouragés ou soutenus par l’ADEME et finalisés depuis 2012. A ce titre, il complète et enrichit le contenu du guide « Les phytotechnologies appliquées aux sites et sols pollués : Etat de l’art et guide de mise en oeuvre » réalisé par l’ADEME et l’INERIS. L’approche globale de gestion des sites et sols pollués (phytomanagement) est envisagée au travers de 5 chapitres dédiés à la présentation d’outils d’aide à la décision (Chapitre 1), de retours d’expériences et d’exemples d’application de phytostabilisation (Chapitre 2), d’outils d’estimation des transferts et des expositions des écosystèmes en lien avec l’évaluation de la biodisponibilité des polluants (Chapitre 3), de filières de conversion de la biomasse en énergie et de leurs enjeux sociaux, règlementaires (Chapitre 4) et économiques (Chapitre 5). La synthèse des outils disponibles d’aide à la décision et les informations à caractères techniques, économiques, règlementaires et sociaux présentés dans cet ouvrage doivent permettre à tout utilisateur ou prescripteur potentiel des phytotechnologies de valider la pertinence de l’utilisation des phytotechnologies au regard des objectifs de gestion du site.}, note = {OV}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {techreport} } Les phytotechnologies appliquées à la gestion des sites pollués regroupent un ensemble de techniques qui utilisent in situ des espèces végétales pour contenir, extraire ou dégrader des polluants inorganiques ou organiques du sol. Ces techniques, bien que connues et relativement bien perçues par les gestionnaires et opérateurs des sites pollués, restent encore émergentes sur les marchés des techniques de gestion des sites et sols pollués, notamment par manque de recul opérationnel et d’informations sur les possibilités de valorisation de la biomasse produite et les coûts et bénéfices associés. Cet ouvrage présente de nouveaux résultats de recherche et de démonstration issues de projets encouragés ou soutenus par l’ADEME et finalisés depuis 2012. A ce titre, il complète et enrichit le contenu du guide « Les phytotechnologies appliquées aux sites et sols pollués : Etat de l’art et guide de mise en oeuvre » réalisé par l’ADEME et l’INERIS. L’approche globale de gestion des sites et sols pollués (phytomanagement) est envisagée au travers de 5 chapitres dédiés à la présentation d’outils d’aide à la décision (Chapitre 1), de retours d’expériences et d’exemples d’application de phytostabilisation (Chapitre 2), d’outils d’estimation des transferts et des expositions des écosystèmes en lien avec l’évaluation de la biodisponibilité des polluants (Chapitre 3), de filières de conversion de la biomasse en énergie et de leurs enjeux sociaux, règlementaires (Chapitre 4) et économiques (Chapitre 5). La synthèse des outils disponibles d’aide à la décision et les informations à caractères techniques, économiques, règlementaires et sociaux présentés dans cet ouvrage doivent permettre à tout utilisateur ou prescripteur potentiel des phytotechnologies de valider la pertinence de l’utilisation des phytotechnologies au regard des objectifs de gestion du site. |
Auteurs : Jaskulak Marta; Grobelak Anna; Rorat Agnieszka; Kacprzak Małgorzata Expression of rbcL gene in plants as a potential stress marker in phytoremediation of heavy metal contaminated soils The XXVI International Symposium “Molecular and Physiological Aspects of Regulatory Processes of the Organism, 16 September 2017, Kraków (Poland) @conference{Jaskulak2017, title = {Expression of rbcL gene in plants as a potential stress marker in phytoremediation of heavy metal contaminated soils}, author = {Marta Jaskulak and Anna Grobelak and Agnieszka Rorat and Małgorzata Kacprzak}, year = {2017}, date = {2017-01-01}, booktitle = {The XXVI International Symposium “Molecular and Physiological Aspects of Regulatory Processes of the Organism, 16 September 2017, Kraków (Poland)}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Adusei-Gyamfi Junias; Berquand Alexandre; Molinari Michael; Cohen Jacques; Waterlot Christophe; Acha Victor Elimination of metallic pollutants from contaminated aqueous solution using different iron particles Journées Condorcet 2017, Institut Universitaire de Technologie A, Université de Lille, 8-9 juin 2017, Lille @conference{Adusei-Gyamfi2017, title = {Elimination of metallic pollutants from contaminated aqueous solution using different iron particles}, author = {Junias Adusei-Gyamfi and Alexandre Berquand and Michael Molinari and Jacques Cohen and Christophe Waterlot and Victor Acha}, year = {2017}, date = {2017-01-01}, booktitle = {Journées Condorcet 2017, Institut Universitaire de Technologie A, Université de Lille, 8-9 juin 2017, Lille}, abstract = {Three iron based reactants; nano zero valent iron, magnetite and micro iron particles were studied to access their efficiencies in remediating metallic polluted aqueous media. Iron particles of such size (nanoscale) were chosen because they can be 10 to 1,000 times highly reactive than the granular particles and their sorption capacity is also much higher. TEM analysis of the synthesized magnetite showed an average particle size of 5 nm and with a generally pretty rounded shape. The pollutants studied were Cd, Pb, Ni and Cu. Two approaches were used; univariate analysis and multivariate analysis using CORICO design. Comparing the three different iron particles studied under four univariate conditions, the removal efficiency of the three iron products can be ranked in the order; magnetite > nano powder > micro particles. For the multivariate analysis, it was observed that the most important condition for remediating metals when using magnetite is the concentration of the magnetite followed by contact time, pH and pollutant concentration, respectively.}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Three iron based reactants; nano zero valent iron, magnetite and micro iron particles were studied to access their efficiencies in remediating metallic polluted aqueous media. Iron particles of such size (nanoscale) were chosen because they can be 10 to 1,000 times highly reactive than the granular particles and their sorption capacity is also much higher. TEM analysis of the synthesized magnetite showed an average particle size of 5 nm and with a generally pretty rounded shape. The pollutants studied were Cd, Pb, Ni and Cu. Two approaches were used; univariate analysis and multivariate analysis using CORICO design. Comparing the three different iron particles studied under four univariate conditions, the removal efficiency of the three iron products can be ranked in the order; magnetite > nano powder > micro particles. For the multivariate analysis, it was observed that the most important condition for remediating metals when using magnetite is the concentration of the magnetite followed by contact time, pH and pollutant concentration, respectively. |
Auteurs : Jaskulak Marta; Murtaś Aneta; Rorat Agnieszka; Grobelak Anna; Chaâbene Zayneb; Kacprzak Małgorzata; Vandenbulcke Franck Expression of metallothioneins and phytochelatins in Lupinus luteus L. exposed to heavy metals and nanoparticles SETAC North America 38th Annual Meeting, 12-16 November 2017, Minneapolis @conference{Jaskulak2017a, title = {Expression of metallothioneins and phytochelatins in Lupinus luteus L. exposed to heavy metals and nanoparticles}, author = {Marta Jaskulak and Aneta Murtaś and Agnieszka Rorat and Anna Grobelak and Zayneb Chaâbene and Małgorzata Kacprzak and Franck Vandenbulcke}, year = {2017}, date = {2017-01-01}, booktitle = {SETAC North America 38th Annual Meeting, 12-16 November 2017, Minneapolis}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Rorat Agnieszka; Vandenbulcke Franck Evaluation du vermicompostage appliqué aux boues d'épuration par la surveillance de la qualité du compost et des réponses immunitaires de trois espèces de vers de terre: Eisenia fetida, Eisenia andrei et Dendrobaena veneta Colloque 2017 de la Société Française d'Ecotoxicologie Fondamentale et Appliquée, 29-30 juin 2017, Lille. @conference{Rorat2017d, title = {Evaluation du vermicompostage appliqué aux boues d'épuration par la surveillance de la qualité du compost et des réponses immunitaires de trois espèces de vers de terre: Eisenia fetida, Eisenia andrei et Dendrobaena veneta}, author = {Agnieszka Rorat and Franck Vandenbulcke}, year = {2017}, date = {2017-01-01}, booktitle = {Colloque 2017 de la Société Française d'Ecotoxicologie Fondamentale et Appliquée, 29-30 juin 2017, Lille.}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Alary Claire Processus de transfert des polluants dans les différents compartiments d’un bassin versant Journées des Doctorants. École Doctorale Géosciences, Ressources Naturelles et Environnement. MINES ParisTech, 19-20 avril 2017, Paris @conference{Alary2017, title = {Processus de transfert des polluants dans les différents compartiments d’un bassin versant}, author = {Claire Alary}, year = {2017}, date = {2017-01-01}, booktitle = {Journées des Doctorants. École Doctorale Géosciences, Ressources Naturelles et Environnement. MINES ParisTech, 19-20 avril 2017, Paris}, note = {INV}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Jeanneret Pauline; Goncalves Philippe; Durand Cyril; Poujol Marc; Trap Pierre; Marquer Didier; Quirt David; Ledru Patrick Geochronological constraints on the trans-Hudsonian tectono-metamorphic evolution of the pre-Athabasca basement within the Wollaston-Mudjatik Transition Zone, Saskatchewan Precambrian Research, 301, pp. 152-1781 @article{Jeanneret2017, title = {Geochronological constraints on the trans-Hudsonian tectono-metamorphic evolution of the pre-Athabasca basement within the Wollaston-Mudjatik Transition Zone, Saskatchewan}, author = {Pauline Jeanneret and Philippe Goncalves and Cyril Durand and Marc Poujol and Pierre Trap and Didier Marquer and David Quirt and Patrick Ledru}, year = {2017}, date = {2017-01-01}, journal = {Precambrian Research}, volume = {301}, pages = {152-178}, abstract = {The hudsonian pressure-temperature-deformation-time-(p-t-d-t) evolution of the pre-athabasca crystalline basement (>∼1700 ma) of the wollaston-mudjatik transition zone (wmtz) highlights two major tectono-metamorphic events m1-d1 and m2-d2. the ages of these two event have been obtained by in-situ la-icpms u-th-pb dating of monazite from grt-crd bearing pelitic gneiss and u-pb analyses performed on zircons from pegmatites, using both exposed basement and drill cores from the wolly–mcclean exploration drilling project. the m1-d1 event, interpreted as the burial of the thinned hearne margin via southward thrusting to pressures varying from 10 to 6 kbar, occurred between ca.1840 and 1813 ma. the m2-d2 event, producing the northeast structural trend of the wmtz, was formed in a sinistral transpressional tectonic regime during the late stage of the hudsonian oblique collision between ca. 1813 and 1770 ma. thermobarometric estimates on the m2–d2 assemblages show that the entire studied area was reequilibrated at about 5 kbar and 750–825 °c. trans-hudsonian pegmatites are viewed as the main proto-ore of the uranium-rich athabasca unconformity-type deposits. formation, transfer and differentiation of these trans-hudsonian pegmatites are replaced in this p-t-d-t evolution. during the 1840–1813 ma m1-d1 partial melting event, the first batches of melt produced in the deep crust are the most likely enriched in uranium. then, these melts were transferred upwards to the upper crustal levels owing to the development of crustal scale steeply-dipping d2 shear zones, and finally were differentiated to form uranium-enriched pegmatites between 1813 and 1770 ma. some monazite and zircon grains within retrogressed migmatites recorded a later event at ca. 1720 ma, interpreted as the terminal cooling event down to 300–400 °c responsible for partial retrogression of metamorphic assemblages. this age provides new insights into the timing of the onset of the athabasca sedimentation that should therefore be at least 1710 ma old or younger.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The hudsonian pressure-temperature-deformation-time-(p-t-d-t) evolution of the pre-athabasca crystalline basement (>∼1700 ma) of the wollaston-mudjatik transition zone (wmtz) highlights two major tectono-metamorphic events m1-d1 and m2-d2. the ages of these two event have been obtained by in-situ la-icpms u-th-pb dating of monazite from grt-crd bearing pelitic gneiss and u-pb analyses performed on zircons from pegmatites, using both exposed basement and drill cores from the wolly–mcclean exploration drilling project. the m1-d1 event, interpreted as the burial of the thinned hearne margin via southward thrusting to pressures varying from 10 to 6 kbar, occurred between ca.1840 and 1813 ma. the m2-d2 event, producing the northeast structural trend of the wmtz, was formed in a sinistral transpressional tectonic regime during the late stage of the hudsonian oblique collision between ca. 1813 and 1770 ma. thermobarometric estimates on the m2–d2 assemblages show that the entire studied area was reequilibrated at about 5 kbar and 750–825 °c. trans-hudsonian pegmatites are viewed as the main proto-ore of the uranium-rich athabasca unconformity-type deposits. formation, transfer and differentiation of these trans-hudsonian pegmatites are replaced in this p-t-d-t evolution. during the 1840–1813 ma m1-d1 partial melting event, the first batches of melt produced in the deep crust are the most likely enriched in uranium. then, these melts were transferred upwards to the upper crustal levels owing to the development of crustal scale steeply-dipping d2 shear zones, and finally were differentiated to form uranium-enriched pegmatites between 1813 and 1770 ma. some monazite and zircon grains within retrogressed migmatites recorded a later event at ca. 1720 ma, interpreted as the terminal cooling event down to 300–400 °c responsible for partial retrogression of metamorphic assemblages. this age provides new insights into the timing of the onset of the athabasca sedimentation that should therefore be at least 1710 ma old or younger. |
Auteurs : Rorat Agnieszka; Vandenbulcke Franck; Gałuszka Adrianna; Klimek Beata; Plytycz Barbara Protective role of metallothionein during regeneration in Eisenia andrei exposed to cadmium Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology, 203, pp. 39-501 @article{Rorat2017d, title = {Protective role of metallothionein during regeneration in Eisenia andrei exposed to cadmium}, author = {Agnieszka Rorat and Franck Vandenbulcke and Adrianna Gałuszka and Beata Klimek and Barbara Plytycz}, year = {2017}, date = {2017-01-01}, journal = {Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology}, volume = {203}, pages = {39-50}, abstract = {Lumbricid earthworms are often exposed to simultaneous action of various environmental stressors like soil contamination, temperature fluctuation or predators' attacks, which may induce extrusion of coelomocytecontaining coelomic fluid or loss of tail segments. if the injuries are not lethal, renewal of the immune-competent cells and soluble components of coelomic fluid and/or the regeneration of tail segments occurs. the aim of our investigations was to test the hypothesis that exposure of adult earthworms eisenia andrei to cadmium-polluted soil at room temperature (rt) and/or low temperature (6 °c) have adverse effects on restoration of experimentally depleted coelomocytes or on regeneration of amputated posterior segments. intact control earthworms and their experimental counterparts subjected to electrostimulation-induced coelomocyte depletion or surgical amputation of posterior segments were maintained either in control soil or in soil spiked with cadmium chloride (500 mg/kg air-dried soil) at rt or 6 °c. four weeks after the beginning of experiments, cadmium accumulation in earthworm bodies was significantly lower at 6 °c than at room temperature. the numbers of restored cells and fluorophore contents were hardly affected by temperature or cadmium. however, cocoon production was reduced by cadmium and completely abolished at 6 °c and regeneration of amputated posterior segments was inhibited in cold but was enhanced by cadmium exposure at rt. independently on the temperature, the 4-week cadmium exposure of adult earthworms was connected with significantly upregulated expression of cd-metallothionein (but not of catalase, lysenin and phytochelatin) in coelomocytes}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Lumbricid earthworms are often exposed to simultaneous action of various environmental stressors like soil contamination, temperature fluctuation or predators' attacks, which may induce extrusion of coelomocytecontaining coelomic fluid or loss of tail segments. if the injuries are not lethal, renewal of the immune-competent cells and soluble components of coelomic fluid and/or the regeneration of tail segments occurs. the aim of our investigations was to test the hypothesis that exposure of adult earthworms eisenia andrei to cadmium-polluted soil at room temperature (rt) and/or low temperature (6 °c) have adverse effects on restoration of experimentally depleted coelomocytes or on regeneration of amputated posterior segments. intact control earthworms and their experimental counterparts subjected to electrostimulation-induced coelomocyte depletion or surgical amputation of posterior segments were maintained either in control soil or in soil spiked with cadmium chloride (500 mg/kg air-dried soil) at rt or 6 °c. four weeks after the beginning of experiments, cadmium accumulation in earthworm bodies was significantly lower at 6 °c than at room temperature. the numbers of restored cells and fluorophore contents were hardly affected by temperature or cadmium. however, cocoon production was reduced by cadmium and completely abolished at 6 °c and regeneration of amputated posterior segments was inhibited in cold but was enhanced by cadmium exposure at rt. independently on the temperature, the 4-week cadmium exposure of adult earthworms was connected with significantly upregulated expression of cd-metallothionein (but not of catalase, lysenin and phytochelatin) in coelomocytes |
Auteurs : Rorat Agnieszka; Wloka Dariusz; Grobelak Anna; Grosser Anna; Sosnecka Aleksandra; Milczarek Marcin; Jelonek Paulina; Vandenbulcke Franck; Kacprzak Malgorzata Vermiremediation of polycyclic aromatic hydrocarbons and heavy metals in sewage sludge composting process Journal of Environmental Management, 187, pp. 347-3531 @article{Rorat2017a, title = {Vermiremediation of polycyclic aromatic hydrocarbons and heavy metals in sewage sludge composting process}, author = {Agnieszka Rorat and Dariusz Wloka and Anna Grobelak and Anna Grosser and Aleksandra Sosnecka and Marcin Milczarek and Paulina Jelonek and Franck Vandenbulcke and Malgorzata Kacprzak}, year = {2017}, date = {2017-01-01}, journal = {Journal of Environmental Management}, volume = {187}, pages = {347-353}, abstract = {The main objective of this work was to study the dynamics of the degradation of polycyclic aromatic hydrocarbons (pahs) during sewage sludge vermicomposting. this eco-biotechnology employing earthworms as natural bioreactors for decomposing of organic matter may be used for vermiremediation of particular pollutants present in various organic matter sources. in this experiment, sewage sludge was mixed with bulking agents and precomposted. afterward, adult eisenia andrei specimens were introduced into the process. total heavy metal and pahs concentration were measured in composts and earthworms before and after the process. while heavy metal concentrations fluctuated mildly in the substratum, several metals clearly accumulated in the earthworms' bodies. body accumulation factors could be ranked as follows (cd > cu > zn > ni > cr > pb). interestingly, addition of earthworms into the process has led to the high percentage of pahs removal and some of the 16 priority pahs analyzed in this study have been accumulated in earthworms' bodies. applied conditions did not affect worms' viability but they almost completely inhibited their reproduction.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The main objective of this work was to study the dynamics of the degradation of polycyclic aromatic hydrocarbons (pahs) during sewage sludge vermicomposting. this eco-biotechnology employing earthworms as natural bioreactors for decomposing of organic matter may be used for vermiremediation of particular pollutants present in various organic matter sources. in this experiment, sewage sludge was mixed with bulking agents and precomposted. afterward, adult eisenia andrei specimens were introduced into the process. total heavy metal and pahs concentration were measured in composts and earthworms before and after the process. while heavy metal concentrations fluctuated mildly in the substratum, several metals clearly accumulated in the earthworms' bodies. body accumulation factors could be ranked as follows (cd > cu > zn > ni > cr > pb). interestingly, addition of earthworms into the process has led to the high percentage of pahs removal and some of the 16 priority pahs analyzed in this study have been accumulated in earthworms' bodies. applied conditions did not affect worms' viability but they almost completely inhibited their reproduction. |
Auteurs : Kieffer M; Nasraoui M; Dubois Michel; Lavina P Mineralogy and fluid inclusions of amethyst veins, Auvergne, Central Massif France: Implication for hydrothermal évolution and genesis XXIVth European Current Research On Fluid Inclusions (ECROFI), 25-29 juin, Nancy @conference{Kieffer2017, title = {Mineralogy and fluid inclusions of amethyst veins, Auvergne, Central Massif France: Implication for hydrothermal évolution and genesis}, author = {M Kieffer and M Nasraoui and Michel Dubois and P Lavina}, year = {2017}, date = {2017-01-01}, booktitle = {XXIVth European Current Research On Fluid Inclusions (ECROFI), 25-29 juin, Nancy}, abstract = {Most amethyst deposits are closely related to granitoids. the vernet-la-varenne amethyst (auvergne district, french massif central) is hosted by several granite and grano-diorite sub-types with few aplite/pegmatite occurrences. amethyst veins have been mined between the 17th and the 20th centuries, but the ore genesis and the hydrothermal evolution remain poorly understood because of the lack of systematic studies of field geology, mineralogy and geochemistry. in the studied area, amethyst veins are mainly oriented n110-n130 and are intimately related to silicified zones with progressive change of quartz colour ranging from milk to purple. two main paragenetic stages of amethyst formation have been recognized based on petrographic observations. the first paragenesis si-s-cu-as-sb-rich is composed of milky-quartz, pyrite and cu-fe sulphides solid solutions with an as end-member (tennantite) and a sb end-member (tetrahedrite), whereas the second paragenesis is as-sb-free and mainly composed of milky-quartz and chalcopyrite. the fluid inclusion study reveals that the amethyst veins were formed from low temperature (100 to 300 °c) and low (<3.5 % equiv. wt.% nacl), to high-salinity fluids (18 to 22 eq wt.% nacl). a subordinate aqueous fluid of moderate salinity has been also recorded (14 eq wt.% nacl). temperature and salinity variations suggest the occurrence of mixing and dilution of early magmatic fluids with external fluids (meteoric and/or evaporate leaching). further oxygen and hydrogen isotopic data are needed to precise the proposed hypothesis.}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Most amethyst deposits are closely related to granitoids. the vernet-la-varenne amethyst (auvergne district, french massif central) is hosted by several granite and grano-diorite sub-types with few aplite/pegmatite occurrences. amethyst veins have been mined between the 17th and the 20th centuries, but the ore genesis and the hydrothermal evolution remain poorly understood because of the lack of systematic studies of field geology, mineralogy and geochemistry. in the studied area, amethyst veins are mainly oriented n110-n130 and are intimately related to silicified zones with progressive change of quartz colour ranging from milk to purple. two main paragenetic stages of amethyst formation have been recognized based on petrographic observations. the first paragenesis si-s-cu-as-sb-rich is composed of milky-quartz, pyrite and cu-fe sulphides solid solutions with an as end-member (tennantite) and a sb end-member (tetrahedrite), whereas the second paragenesis is as-sb-free and mainly composed of milky-quartz and chalcopyrite. the fluid inclusion study reveals that the amethyst veins were formed from low temperature (100 to 300 °c) and low (<3.5 % equiv. wt.% nacl), to high-salinity fluids (18 to 22 eq wt.% nacl). a subordinate aqueous fluid of moderate salinity has been also recorded (14 eq wt.% nacl). temperature and salinity variations suggest the occurrence of mixing and dilution of early magmatic fluids with external fluids (meteoric and/or evaporate leaching). further oxygen and hydrogen isotopic data are needed to precise the proposed hypothesis. |
Auteurs : Alary Claire; Haouche Laurence; Lemière Bruno; Bréquel Hervé; Bert Valérie GeDSeT, understanding sediment contamination and behaviour to facilitate its reuse and contribution to the circular economy of minerals 10th International SedNet conference. 14-17 June 2017, Genoa (Italie) @conference{Alary2017a, title = {GeDSeT, understanding sediment contamination and behaviour to facilitate its reuse and contribution to the circular economy of minerals}, author = {Claire Alary and Laurence Haouche and Bruno Lemière and Hervé Bréquel and Valérie Bert}, year = {2017}, date = {2017-01-01}, booktitle = {10th International SedNet conference. 14-17 June 2017, Genoa (Italie)}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Alary Claire; Patault Edouard Suivi des événements érosifs dans un bassin versant agricole. Site expérimental de la Pommeroye (Hauts de France) Journée connaissance au service de l'action - la qualité des milieux aquatiques. Lilliad Learning Center Innovation, Université de Lille 1, 3 octobre 2017, Villeneuve d’Ascq @conference{Alary2017b, title = {Suivi des événements érosifs dans un bassin versant agricole. Site expérimental de la Pommeroye (Hauts de France)}, author = {Claire Alary and Edouard Patault}, year = {2017}, date = {2017-01-01}, booktitle = {Journée connaissance au service de l'action - la qualité des milieux aquatiques. Lilliad Learning Center Innovation, Université de Lille 1, 3 octobre 2017, Villeneuve d’Ascq}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Kondratskyi Artem; Kondratska Kateryna; Vanden-Abeele Fabien; Gordienko Dmitri; Dubois Charlotte; Toillon Robert-Allain; Slomianny Christian; Lemière Sébastien; Delcourt Philippe; Dewailly Etienne; Skryma Roman; Biot Christophe; Prevarskaya Natalia Ferroquine, the next generation antimalarial drug, has antitumor activity Scientific Reports, 7, pp. online1 @article{Kondratskyi2017, title = {Ferroquine, the next generation antimalarial drug, has antitumor activity}, author = {Artem Kondratskyi and Kateryna Kondratska and Fabien Vanden-Abeele and Dmitri Gordienko and Charlotte Dubois and Robert-Allain Toillon and Christian Slomianny and Sébastien Lemière and Philippe Delcourt and Etienne Dewailly and Roman Skryma and Christophe Biot and Natalia Prevarskaya}, year = {2017}, date = {2017-01-01}, journal = {Scientific Reports}, volume = {7}, pages = {online}, abstract = {Despite the tremendous progress in medicine, cancer remains one of the most serious global health problems awaiting new effective therapies. here we present ferroquine (fq), the next generation antimalarial drug, as a promising candidate for repositioning as cancer therapeutics. we report that fq potently inhibits autophagy, perturbs lysosomal function and impairs prostate tumor growth in vivo. we demonstrate that fq negatively regulates akt kinase and hypoxia-inducible factor-1α (hif-1α) and is particularly effective in starved and hypoxic conditions frequently observed in advanced solid cancers. fq enhances the anticancer activity of several chemotherapeutics suggesting its potential application as an adjuvant to existing anticancer therapy. alike its parent compound chloroquine (cq), fq accumulates within and deacidifies lysosomes. further, fq induces lysosomal membrane permeabilization, mitochondrial depolarization and caspase-independent cancer cell death. overall, our work identifies ferroquine as a promising new drug with a potent anticancer activity.}, note = {ACLO}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Despite the tremendous progress in medicine, cancer remains one of the most serious global health problems awaiting new effective therapies. here we present ferroquine (fq), the next generation antimalarial drug, as a promising candidate for repositioning as cancer therapeutics. we report that fq potently inhibits autophagy, perturbs lysosomal function and impairs prostate tumor growth in vivo. we demonstrate that fq negatively regulates akt kinase and hypoxia-inducible factor-1α (hif-1α) and is particularly effective in starved and hypoxic conditions frequently observed in advanced solid cancers. fq enhances the anticancer activity of several chemotherapeutics suggesting its potential application as an adjuvant to existing anticancer therapy. alike its parent compound chloroquine (cq), fq accumulates within and deacidifies lysosomes. further, fq induces lysosomal membrane permeabilization, mitochondrial depolarization and caspase-independent cancer cell death. overall, our work identifies ferroquine as a promising new drug with a potent anticancer activity. |
Auteurs : Sahaab Abdalratha Paleoenvironmental conditions and diagenetic evolution of the mishrif formation (Nasiriyah oil field, Iraq) Thèse de l’Université de Lille 1, 242pp, @phdthesis{Sahaab2017, title = {Paleoenvironmental conditions and diagenetic evolution of the mishrif formation (Nasiriyah oil field, Iraq)}, author = {Abdalratha Sahaab}, year = {2017}, date = {2017-01-01}, school = {Thèse de l’Université de Lille 1, 242pp}, abstract = {The aim of the present study is related to understand the paleofluid-rock interactions in carbonate rocks and its relation with oil potential during upper cretaceous. paleogeography studies, geological descriptions and geochemistry analyses of the reservoir rocks were conducted on the mishrif formation of the nasiriah oil field (southeast of iraq). the data of drill cores from 5 drillholes (ns-1 to ns-5), exploration reports and production data of the nasiriyah oil field have been used. the microfacies analyses show that mishrif includes foraminifera, coral, ruddiest, algae, microbialite, favreina microcoprolite, pellets, peloids, aggregate grains and rounded clastic grains. therefore, shallow-water environments represent mishrif paleoenvironments, included evaporitic zone to the back-reef zone of the interior carbonate platform shelf. transport system in the mishrif contains stylolite networks, fractures and porosity systems. the scanning electron microscope (sem) shows the balanced distribution of the transport systems regardless of the microfacies type. the aqueous fluid inclusions are mainly composed of h2o-mgcl2 system. homogeneous temperatures of the aqueous fluid inclusions range from 150 to 175°c. homogeneous temperatures of the petroleum fluid inclusions in the latter fractures represent high degrees from 225 up to 250°c. cementation process exhibits four phases of the cementation events. the first phase took place before the hydrocarbon migration. the second occurred during the hydrocarbon migration. third phase happened after process of the hydrocarbon migration and the last phase represented the thermochemical sulfate reduction by the distribution of bitumen.}, note = {TH}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {phdthesis} } The aim of the present study is related to understand the paleofluid-rock interactions in carbonate rocks and its relation with oil potential during upper cretaceous. paleogeography studies, geological descriptions and geochemistry analyses of the reservoir rocks were conducted on the mishrif formation of the nasiriah oil field (southeast of iraq). the data of drill cores from 5 drillholes (ns-1 to ns-5), exploration reports and production data of the nasiriyah oil field have been used. the microfacies analyses show that mishrif includes foraminifera, coral, ruddiest, algae, microbialite, favreina microcoprolite, pellets, peloids, aggregate grains and rounded clastic grains. therefore, shallow-water environments represent mishrif paleoenvironments, included evaporitic zone to the back-reef zone of the interior carbonate platform shelf. transport system in the mishrif contains stylolite networks, fractures and porosity systems. the scanning electron microscope (sem) shows the balanced distribution of the transport systems regardless of the microfacies type. the aqueous fluid inclusions are mainly composed of h2o-mgcl2 system. homogeneous temperatures of the aqueous fluid inclusions range from 150 to 175°c. homogeneous temperatures of the petroleum fluid inclusions in the latter fractures represent high degrees from 225 up to 250°c. cementation process exhibits four phases of the cementation events. the first phase took place before the hydrocarbon migration. the second occurred during the hydrocarbon migration. third phase happened after process of the hydrocarbon migration and the last phase represented the thermochemical sulfate reduction by the distribution of bitumen. |
Auteurs : Koppen Gudrun; Azqueta Amaya; Pourrut Bertrand; Brunborg Gunnar; Collins Andrew-R.; Langie Sabine-A.-S. The next three decades of the comet assay: a report of the 11th International Comet Assay Workshop Mutagenesis, 32(3), pp. 397-4081 @article{Koppen2017, title = {The next three decades of the comet assay: a report of the 11th International Comet Assay Workshop}, author = {Gudrun Koppen and Amaya Azqueta and Bertrand Pourrut and Gunnar Brunborg and Andrew-R. Collins and Sabine-A.-S. Langie}, year = {2017}, date = {2017-01-01}, journal = {Mutagenesis}, volume = {32}, number = {3}, pages = {397-408}, abstract = {The international comet assay workshops are a series of scientific conferences dealing with practical and theoretical aspects of the comet assay (single-cell gel electrophoresis)—a simple method for detecting dna strand breaks. the first paper describing such an assay was published over 30 years ago in 1984 by swedish researchers o. ostling and k. j. johanson. appropriately, the theme for the 2015 meeting was looking to the future: ‘the next 3 decades of the comet assay’. the programme included 25 oral and 43 poster presentations depicting the latest advances in technical developments as well as applications of the comet assay in genotoxicity testing (in vitro and in vivo) and biomonitoring of both humans and the environment. open discussion sessions based on questions from the participants allowed exchange of practical details on current comet assay protocols. this report summarises technical issues of high importance which were discussed during the sessions. we provide information on ways to improve the assay performance, by testing for cytotoxicity, by using reference samples to reduce or allow for inter-experimental variation, and by standardising quantification of the damage, including replicates and scoring enough comets to ensure statistical validity. after 30 years of experimentation with the comet assay, we are in a position to control the important experimental parameters and make the comet assay a truly reliable method with a wealth of possible applications.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The international comet assay workshops are a series of scientific conferences dealing with practical and theoretical aspects of the comet assay (single-cell gel electrophoresis)—a simple method for detecting dna strand breaks. the first paper describing such an assay was published over 30 years ago in 1984 by swedish researchers o. ostling and k. j. johanson. appropriately, the theme for the 2015 meeting was looking to the future: ‘the next 3 decades of the comet assay’. the programme included 25 oral and 43 poster presentations depicting the latest advances in technical developments as well as applications of the comet assay in genotoxicity testing (in vitro and in vivo) and biomonitoring of both humans and the environment. open discussion sessions based on questions from the participants allowed exchange of practical details on current comet assay protocols. this report summarises technical issues of high importance which were discussed during the sessions. we provide information on ways to improve the assay performance, by testing for cytotoxicity, by using reference samples to reduce or allow for inter-experimental variation, and by standardising quantification of the damage, including replicates and scoring enough comets to ensure statistical validity. after 30 years of experimentation with the comet assay, we are in a position to control the important experimental parameters and make the comet assay a truly reliable method with a wealth of possible applications. |
Auteurs : Labidi Sonia; Firmin Stéphane; Verdin Anthony; Bidar Géraldine; Laruelle Frédéric; Douay Francis; Shirali Pirouz; Fontaine Joël; Lounès-Hadj-Sahraoui Anissa Nature of fly ash amendments differently influences oxidative stress alleviation in four forest tree species and metal trace element phytostabilization in aged contaminated soil: A long-term field experiment Ecotoxicology and Environmental Safety, 138, pp. 190-1981 @article{Labidi2017, title = {Nature of fly ash amendments differently influences oxidative stress alleviation in four forest tree species and metal trace element phytostabilization in aged contaminated soil: A long-term field experiment}, author = {Sonia Labidi and Stéphane Firmin and Anthony Verdin and Géraldine Bidar and Frédéric Laruelle and Francis Douay and Pirouz Shirali and Joël Fontaine and Anissa Lounès-Hadj-Sahraoui}, year = {2017}, date = {2017-01-01}, journal = {Ecotoxicology and Environmental Safety}, volume = {138}, pages = {190-198}, abstract = {Aided phytostabilization using coal fly ashes (cfas) is an interesting technique to clean-up polluted soils and valorizing industrial wastes. in this context, our work aims to study the effect of two cfas: silico-aluminous (cfa1) and sulfo-calcic (cfa2) ones, 10 years after their addition, on the phytostabilization of a highly cd (cadmium), pb (lead) and zn (zinc) contaminated agricultural soil, with four forest tree species: robinia pseudoacacia, alms glutinosa, acer pseudoplatanus and salix alba. to assess the effect of cfas on trees, leaf fatty acid composition, malondialdehyde (mda), oxidized and reduced glutathione contents ratio (gssg: gsh), 8hydroxy-2'-deoxyguanosine (8-ohdg), peroxidase (po) and superoxide dismutase (sod) activities were examined. our results showed that cfa amendments decreased the cac1(2-)extractable fraction of cd and zn from the soil. however, no significant effect was observed on metal trace element (mte) concentrations in leaves. fatty acid percentages were only affected by the addition of sulfo-calcic cfa. the most affected species were a. glutinosa and r. pseudoacacia in which c16:0, c18:0 and c18:2 percentages increased significantly whereas the c18:3 decreased. the addition of sulfo-calcic cfa induced the antioxidant systems response in tree leaves. an increase of sod and pod activities in leaves of trees planted on the cfa2-amended plot was recorded. conversely, silico-aluminous cfa generated a reduction of lipid and dna oxidation associated with the absence or low induction of anti-oxidative processes. our study evidenced oxidative stress alleviation in tree leaves due to cfa amendments. mte mobility in contaminated soil and their accumulation in leaves differed with the nature of cfa amendments and the selected tree species.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Aided phytostabilization using coal fly ashes (cfas) is an interesting technique to clean-up polluted soils and valorizing industrial wastes. in this context, our work aims to study the effect of two cfas: silico-aluminous (cfa1) and sulfo-calcic (cfa2) ones, 10 years after their addition, on the phytostabilization of a highly cd (cadmium), pb (lead) and zn (zinc) contaminated agricultural soil, with four forest tree species: robinia pseudoacacia, alms glutinosa, acer pseudoplatanus and salix alba. to assess the effect of cfas on trees, leaf fatty acid composition, malondialdehyde (mda), oxidized and reduced glutathione contents ratio (gssg: gsh), 8hydroxy-2'-deoxyguanosine (8-ohdg), peroxidase (po) and superoxide dismutase (sod) activities were examined. our results showed that cfa amendments decreased the cac1(2-)extractable fraction of cd and zn from the soil. however, no significant effect was observed on metal trace element (mte) concentrations in leaves. fatty acid percentages were only affected by the addition of sulfo-calcic cfa. the most affected species were a. glutinosa and r. pseudoacacia in which c16:0, c18:0 and c18:2 percentages increased significantly whereas the c18:3 decreased. the addition of sulfo-calcic cfa induced the antioxidant systems response in tree leaves. an increase of sod and pod activities in leaves of trees planted on the cfa2-amended plot was recorded. conversely, silico-aluminous cfa generated a reduction of lipid and dna oxidation associated with the absence or low induction of anti-oxidative processes. our study evidenced oxidative stress alleviation in tree leaves due to cfa amendments. mte mobility in contaminated soil and their accumulation in leaves differed with the nature of cfa amendments and the selected tree species. |
Auteurs : Al-Souki Karim Interactions Sol-Plante dans un contexte de phytomanagement de sols pollués par des métaux: Application à Miscanthus x giganteus Thèse de l’Université de Lille 1, 200pp, @phdthesis{Al-Souki2017b, title = {Interactions Sol-Plante dans un contexte de phytomanagement de sols pollués par des métaux: Application à Miscanthus x giganteus}, author = {Karim Al-Souki}, year = {2017}, date = {2017-01-01}, school = {Thèse de l’Université de Lille 1, 200pp}, abstract = {La culture de Miscanthus x giganteus est adaptée à la gestion de vastes zones contaminées par des métaux. C’est le cas aux alentours de l’ancienne fonderie de plomb Metaleurop Nord (Nord de la France) où il a été montré que la plante accumule peu le plomb et le cadmium dans ses organes aériens. Des expériences en pots ont été réalisées afin 1) d’évaluer la capacité de la plante à restaurer la fonctionnalité de sols agricoles présentant un degré de contamination en métaux, 2) d’étudier les impacts à long terme d’un apport massif de débris foliaires sur le système sol-plante et 3) de déterminer les effets des contaminants sur la santé du miscanthus au cours de la première et de la deuxième année de culture. Cinq terres ont été prélevées dans l’horizon labouré de parcelles agricoles situées à différentes distances de l’ancienne fonderie. La plus éloignée est située à 75 km et a servi de témoin. Trois cultivars de miscanthus ont été utilisés. Les résultats ont confirmé la tolérance de Miscanthus x giganteus vis-à-vis des polluants métalliques. Ils ont montré des effets positifs de la culture sur les activités biologiques des sols étudiés, telles que la biomasse microbienne, la respirométrie et les activités enzymatiques. Une évolution favorable a aussi été constatée sur la teneur en carbone organique et la capacité d’échange cationique. L’incorporation au sol de débris foliaires a engendré une évolution favorable de certains paramètres physico-chimiques (pH et carbone organique) et biologiques (respirométrie, biomasse microbienne). Sur une période de trois à six mois après l’ajout de ces débris, aucun effet n’a été constaté sur l’extractabilité, la phyto-disponibilité de Cd et Pb, et la santé d’une culture modèle, le raygrass. Par ailleurs, les résultats obtenus lors de la première récolte (pigments photosynthétiques, métabolites secondaires et activités enzymatiques) attestent l’existence d’un stress oxydatif chez le miscanthus cultivé sur des terres à plus de 500 mg de Pb kg-1 . En fin de deuxième année, le stress oxydatif est nettement plus marqué et apparaît sur les plantes obtenues sur les terres à plus de 200 mg Pb kg-1 . Ce constat est expliqué par des contraintes résultant des conditions expérimentales (cultures en containers accentuant les interactions entre les éléments métalliques et le système racinaire). Enfin, aucune différence significative n’a été observée selon les cultivars étudiés. Ces résultats obtenus en milieu semi-contrôlé nécessitent d’être validés dans des conditions in situ pour mieux intégrer les interactions dans le système sol-métaux-miscanthus. Les travaux à venir pourraient porter sur la composition des exsudats racinaires de miscanthus, la caractérisation de la diversité microbienne dans la rhizosphère, l’utilisation d’autres indicateurs du stress oxydatif ou encore la sélection de cultivars adaptés à des conditions environnementales encore plus dégradées (sols acides, sableux, Technosols, contaminations multiples...).}, note = {TH}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {phdthesis} } La culture de Miscanthus x giganteus est adaptée à la gestion de vastes zones contaminées par des métaux. C’est le cas aux alentours de l’ancienne fonderie de plomb Metaleurop Nord (Nord de la France) où il a été montré que la plante accumule peu le plomb et le cadmium dans ses organes aériens. Des expériences en pots ont été réalisées afin 1) d’évaluer la capacité de la plante à restaurer la fonctionnalité de sols agricoles présentant un degré de contamination en métaux, 2) d’étudier les impacts à long terme d’un apport massif de débris foliaires sur le système sol-plante et 3) de déterminer les effets des contaminants sur la santé du miscanthus au cours de la première et de la deuxième année de culture. Cinq terres ont été prélevées dans l’horizon labouré de parcelles agricoles situées à différentes distances de l’ancienne fonderie. La plus éloignée est située à 75 km et a servi de témoin. Trois cultivars de miscanthus ont été utilisés. Les résultats ont confirmé la tolérance de Miscanthus x giganteus vis-à-vis des polluants métalliques. Ils ont montré des effets positifs de la culture sur les activités biologiques des sols étudiés, telles que la biomasse microbienne, la respirométrie et les activités enzymatiques. Une évolution favorable a aussi été constatée sur la teneur en carbone organique et la capacité d’échange cationique. L’incorporation au sol de débris foliaires a engendré une évolution favorable de certains paramètres physico-chimiques (pH et carbone organique) et biologiques (respirométrie, biomasse microbienne). Sur une période de trois à six mois après l’ajout de ces débris, aucun effet n’a été constaté sur l’extractabilité, la phyto-disponibilité de Cd et Pb, et la santé d’une culture modèle, le raygrass. Par ailleurs, les résultats obtenus lors de la première récolte (pigments photosynthétiques, métabolites secondaires et activités enzymatiques) attestent l’existence d’un stress oxydatif chez le miscanthus cultivé sur des terres à plus de 500 mg de Pb kg-1 . En fin de deuxième année, le stress oxydatif est nettement plus marqué et apparaît sur les plantes obtenues sur les terres à plus de 200 mg Pb kg-1 . Ce constat est expliqué par des contraintes résultant des conditions expérimentales (cultures en containers accentuant les interactions entre les éléments métalliques et le système racinaire). Enfin, aucune différence significative n’a été observée selon les cultivars étudiés. Ces résultats obtenus en milieu semi-contrôlé nécessitent d’être validés dans des conditions in situ pour mieux intégrer les interactions dans le système sol-métaux-miscanthus. Les travaux à venir pourraient porter sur la composition des exsudats racinaires de miscanthus, la caractérisation de la diversité microbienne dans la rhizosphère, l’utilisation d’autres indicateurs du stress oxydatif ou encore la sélection de cultivars adaptés à des conditions environnementales encore plus dégradées (sols acides, sableux, Technosols, contaminations multiples...). |
Auteurs : Al-Souki Karim; Louvel Brice; Douay Francis; Pourrut Bertrand Interest of Miscanthus x Giganteus in phytomanaging heavy metal contaminated soils 2nd World Congress on Civil, Structural, and Environmental Engineering (CSEE’17), 2-4 April 2017, Barcelona (Espagne) @conference{Al-Souki2017a, title = {Interest of Miscanthus x Giganteus in phytomanaging heavy metal contaminated soils}, author = {Karim Al-Souki and Brice Louvel and Francis Douay and Bertrand Pourrut}, year = {2017}, date = {2017-01-01}, booktitle = {2nd World Congress on Civil, Structural, and Environmental Engineering (CSEE’17), 2-4 April 2017, Barcelona (Espagne)}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Al-Souki Karim-Suhail; Louvel Brice; Douay Francis; Pourrut Bertrand Assessment of Miscanthus x giganteus capacity to restore the functionality of metal-contaminated soils: Ex situ experiment Applied Soil Ecology, 115, pp. 44-521 @article{Al-Souki2017c, title = {Assessment of Miscanthus x giganteus capacity to restore the functionality of metal-contaminated soils: Ex situ experiment}, author = {Karim-Suhail Al-Souki and Brice Louvel and Francis Douay and Bertrand Pourrut}, year = {2017}, date = {2017-01-01}, journal = {Applied Soil Ecology}, volume = {115}, pages = {44-52}, abstract = {Phytostabilization can be an appropriate choice for managing soils contaminated by diverse metals. Miscanthus x giganteus was selected to phytostabilize polluted soils surrounding the former lead smelter Metaleurop Nord, in Northern France. The aim of the current study was to determine the impact of miscanthus plants on restoring the corresponding soil functionality. Ex situ experiments revealed that soil biological activities (basal respiration, fluorescein diacetate hydrolytic activity, acid phosphatases, laccases and ureases) as well as microbial biomass carbon increased in contaminated soils cultivated with miscanthus, compared to unplanted soils. These results verify the capacity of miscanthus to restore polluted soil functionalities, indicating the positive effect of phytostabilization on soil biological activities. In conclusion, revegetating polluted soils with miscanthus plants can restore their capacity to perform biochemically and biologically.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Phytostabilization can be an appropriate choice for managing soils contaminated by diverse metals. Miscanthus x giganteus was selected to phytostabilize polluted soils surrounding the former lead smelter Metaleurop Nord, in Northern France. The aim of the current study was to determine the impact of miscanthus plants on restoring the corresponding soil functionality. Ex situ experiments revealed that soil biological activities (basal respiration, fluorescein diacetate hydrolytic activity, acid phosphatases, laccases and ureases) as well as microbial biomass carbon increased in contaminated soils cultivated with miscanthus, compared to unplanted soils. These results verify the capacity of miscanthus to restore polluted soil functionalities, indicating the positive effect of phytostabilization on soil biological activities. In conclusion, revegetating polluted soils with miscanthus plants can restore their capacity to perform biochemically and biologically. |
Auteurs : Althoff F; Dubois Michel; Castro N Fluid inclusions constraints on the origin of Ribeirão da Prata lead and zinc ore deposits (southern Brazil) XXIVth European Current Research On Fluid Inclusions (ECROFI), 25-29 Juin, Nancy @conference{Althoff2017, title = {Fluid inclusions constraints on the origin of Ribeirão da Prata lead and zinc ore deposits (southern Brazil)}, author = {F Althoff and Michel Dubois and N Castro}, year = {2017}, date = {2017-01-01}, booktitle = {XXIVth European Current Research On Fluid Inclusions (ECROFI), 25-29 Juin, Nancy}, abstract = {The Itajaí-Perimbó shear zone (IPSZ), in southern Brazil, is the northern boundary of the Brasiliano/ Pan-African Dom Feliciano Belt, whose evolution is related to the West Gondwana collage. This NE-SW shear zone is the limit between the Itajaí basin, at NW, and the Brusque group (part of Dom Feliciano Belt), at SE. The Itajaí basin is a Neoproterozoic foreland basin, with sedimentation occurring between 600 to 560 Ma. Brusque group is composed of schists and marbles with granitoids, that evolved from 900 to 540 Ma (Basei et al., 2011ab). The IPSZ hosts a lead and zinc (copper and silver) ore deposit at the Ribeirão da Prata mine. Galena, sphalerite, chalcopyrite and pyrite are the primary ore minerals. Covellite, goethite, malachite azurite (cerussite and pyromorphite) represent the secondary ore paragenesis (Biondi et al., 1992). The formation of this deposit is related to reactivation of the shear zone during the main deformation of the Itajaí basin (530 Ma). The IPSZ evolved from thrust to right lateral fault (Rostirolla et al., 1999) and built up a well marked structural control in the deposit, that is associated to fractured gneiss and granitic rocks with remarkable silicification. We have examined fluid inclusions within quartz from pre-, syn- and post-mineralization veins to provide constraints on the role of fluid activity and genesis of the deposit. Thirteen fluid inclusions associations from 5 veins, encompassing 630 fluid inclusions were analyzed by Raman spectroscopy and microthermometry. Fluid inclusions have trapped a saline aqueous fluid with salinity ranging from 1 to 10 wt.% eq. NaCl. No gas has been detected in inclusions. Large variations of salinity are observed inside fluid inclusion assemblages (FIA) probably indicating a mixing process between deep and surface waters. Homogenization temperatures are well distributed in the range 100- 180 °C.}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } The Itajaí-Perimbó shear zone (IPSZ), in southern Brazil, is the northern boundary of the Brasiliano/ Pan-African Dom Feliciano Belt, whose evolution is related to the West Gondwana collage. This NE-SW shear zone is the limit between the Itajaí basin, at NW, and the Brusque group (part of Dom Feliciano Belt), at SE. The Itajaí basin is a Neoproterozoic foreland basin, with sedimentation occurring between 600 to 560 Ma. Brusque group is composed of schists and marbles with granitoids, that evolved from 900 to 540 Ma (Basei et al., 2011ab). The IPSZ hosts a lead and zinc (copper and silver) ore deposit at the Ribeirão da Prata mine. Galena, sphalerite, chalcopyrite and pyrite are the primary ore minerals. Covellite, goethite, malachite azurite (cerussite and pyromorphite) represent the secondary ore paragenesis (Biondi et al., 1992). The formation of this deposit is related to reactivation of the shear zone during the main deformation of the Itajaí basin (530 Ma). The IPSZ evolved from thrust to right lateral fault (Rostirolla et al., 1999) and built up a well marked structural control in the deposit, that is associated to fractured gneiss and granitic rocks with remarkable silicification. We have examined fluid inclusions within quartz from pre-, syn- and post-mineralization veins to provide constraints on the role of fluid activity and genesis of the deposit. Thirteen fluid inclusions associations from 5 veins, encompassing 630 fluid inclusions were analyzed by Raman spectroscopy and microthermometry. Fluid inclusions have trapped a saline aqueous fluid with salinity ranging from 1 to 10 wt.% eq. NaCl. No gas has been detected in inclusions. Large variations of salinity are observed inside fluid inclusion assemblages (FIA) probably indicating a mixing process between deep and surface waters. Homogenization temperatures are well distributed in the range 100- 180 °C. |
Auteurs : Althoff F; Dubois Michel; Haldich I W; Ronchi L H; Ronchi F C Constraints on the evolution of the Itajaí-Perimbó shear zone, southern Brazil, provided by fluid inclusions XXIVth European Current Research On Fluid Inclusions (ECROFI), 25-29 juin, Nancy @conference{Althoff2017a, title = {Constraints on the evolution of the Itajaí-Perimbó shear zone, southern Brazil, provided by fluid inclusions}, author = {F Althoff and Michel Dubois and I W Haldich and L H Ronchi and F C Ronchi}, year = {2017}, date = {2017-01-01}, booktitle = {XXIVth European Current Research On Fluid Inclusions (ECROFI), 25-29 juin, Nancy}, abstract = {The Itajaí-Perimbó shear zone (IPSZ) is exposed in the Catarinense Shield, southern Brazil. It defines the contact between the Dom Feliciano Belt (Cryogenian) and the Itajaí Foreland Basin (Ediacaran). The IPSZ evolved from oblique-thrust to strike-slip fault during the Brasiliano / Pan-African orogenic cycle, and was reactivated affecting Late Permian rocks in the Paraná basin (Rostirolla et al., 2003). The oldest rock known in the Dom Feliciano belt is the A-type Parapente granite (843 +/- 12 Ma; Basei et al., 2008), that outcrops inside the IPSZ. The Parapente granite is older than the IPSZ and suffered only brittle- (feldspars) plastic (quartz) deformation, with development of low grade mylonites and phyllonites. The pressure-temperature (P-T) conditions throughout the evolution of the IPSZ were evaluated using fluid inclusions from the Parapente granite. Different quartz generations were identified according to their microstructural features. Homogenization temperatures range from 193 °C in quartz from the less deformed granite (FIP 25), 224 to 180 ºC in quartz from a deformed vein in accordance with the granite foliation (FN6), 180 to 169 ºC in quartz from a deformed vein that cuts the granite foliation (FIP 29), and 165 to 138°C in quartz porphyroblasts from the phyllonite (FIP 6 and FIP 22). All fluid populations are mainly saline waters of low to medium salinity (1-10 wt% eq. NaCl), with exceptionally a low gas content (CO2 and N2) in one sample (FN6). Depths estimated from fluid inclusion isochores indicate at least three crustal levels where the shear zone may have been active (from ~20 km to ~10 km). P-T conditions of formation of phyllonites are estimated at 350 °C and 4 kbar and probably determine the end of the evolution of the IPSZ. The variation in depth of almost 10 km implies that the shear zone operated as a thrust fault}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } The Itajaí-Perimbó shear zone (IPSZ) is exposed in the Catarinense Shield, southern Brazil. It defines the contact between the Dom Feliciano Belt (Cryogenian) and the Itajaí Foreland Basin (Ediacaran). The IPSZ evolved from oblique-thrust to strike-slip fault during the Brasiliano / Pan-African orogenic cycle, and was reactivated affecting Late Permian rocks in the Paraná basin (Rostirolla et al., 2003). The oldest rock known in the Dom Feliciano belt is the A-type Parapente granite (843 +/- 12 Ma; Basei et al., 2008), that outcrops inside the IPSZ. The Parapente granite is older than the IPSZ and suffered only brittle- (feldspars) plastic (quartz) deformation, with development of low grade mylonites and phyllonites. The pressure-temperature (P-T) conditions throughout the evolution of the IPSZ were evaluated using fluid inclusions from the Parapente granite. Different quartz generations were identified according to their microstructural features. Homogenization temperatures range from 193 °C in quartz from the less deformed granite (FIP 25), 224 to 180 ºC in quartz from a deformed vein in accordance with the granite foliation (FN6), 180 to 169 ºC in quartz from a deformed vein that cuts the granite foliation (FIP 29), and 165 to 138°C in quartz porphyroblasts from the phyllonite (FIP 6 and FIP 22). All fluid populations are mainly saline waters of low to medium salinity (1-10 wt% eq. NaCl), with exceptionally a low gas content (CO2 and N2) in one sample (FN6). Depths estimated from fluid inclusion isochores indicate at least three crustal levels where the shear zone may have been active (from ~20 km to ~10 km). P-T conditions of formation of phyllonites are estimated at 350 °C and 4 kbar and probably determine the end of the evolution of the IPSZ. The variation in depth of almost 10 km implies that the shear zone operated as a thrust fault |
Auteurs : Aminot Yann; Belles Angel; Alary Claire; Readman James-W. Near-surface distribution of pollutants in coastal waters as assessed by novel polyethylene passive samplers Marine Pollution Bulletin, 119(1), pp. 92-1011 @article{Aminot2017, title = {Near-surface distribution of pollutants in coastal waters as assessed by novel polyethylene passive samplers}, author = {Yann Aminot and Angel Belles and Claire Alary and James-W. Readman}, year = {2017}, date = {2017-01-01}, journal = {Marine Pollution Bulletin}, volume = {119}, number = {1}, pages = {92-101}, abstract = {We report a novel and inexpensive method to provide high resolution vertical measurements of temporally integrated organic contaminants in surface and sub-surface waters in polluted coastal environments. It employs a strip of polyethylene deployed as a passive sampler. Verifications are confirmed via conventional spot sample analyses and against Performance Reference Compound (PRC) calibration methods. Analytes targeted include 16 Polycyclic Aromatic Hydrocarbons, 15 personal care products, 8 organophosphorus flame retardants, 4 antifouling ‘booster’ biocides and 15 n-alkanes. Whilst all contaminants typically revealed homogeneous concentrations from 10 cm to 3 m depth in the selected harbour (< 30% variations), many increased sharply at the air-sea interface. The passive sampler was shown to afford better resolution than could be achieved using conventional analytical techniques at the surface microlayer (SML). Whilst hydrophobicity appeared to be a key factor for the enrichment of many determinants, less correlation was found for the emerging contaminants.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } We report a novel and inexpensive method to provide high resolution vertical measurements of temporally integrated organic contaminants in surface and sub-surface waters in polluted coastal environments. It employs a strip of polyethylene deployed as a passive sampler. Verifications are confirmed via conventional spot sample analyses and against Performance Reference Compound (PRC) calibration methods. Analytes targeted include 16 Polycyclic Aromatic Hydrocarbons, 15 personal care products, 8 organophosphorus flame retardants, 4 antifouling ‘booster’ biocides and 15 n-alkanes. Whilst all contaminants typically revealed homogeneous concentrations from 10 cm to 3 m depth in the selected harbour (< 30% variations), many increased sharply at the air-sea interface. The passive sampler was shown to afford better resolution than could be achieved using conventional analytical techniques at the surface microlayer (SML). Whilst hydrophobicity appeared to be a key factor for the enrichment of many determinants, less correlation was found for the emerging contaminants. |
Auteurs : Arguelles A; Krier François; Coutte François; Leclère Valérie; Lemière Sébastien; Höfte Monica; Ongena Marc; Barka Essaid-Ait; Dorey Stephan; Jacquard Cédric; Khong N G; Tisserant Benoit; Randoux Béatrice; Reignault Philippe; Delanote Lieven; Cap Nathalie; Jacques Philippe Studies on the potential of new biomolecules for the protection of plants in organic agriculture: PHYTOBIO and SMARTBIOCONTROL projects. - Etudes des potentialites de nouvelles biomolecules pour la protection des plantes en agriculture biologique les projets PHYTOBIO et SMARTBIOCONTROL 6ème conférence internationale sur les méthodes alternatives de protection des plantes, 21-23 mars 2017, Lille @conference{Arguelles2017, title = {Studies on the potential of new biomolecules for the protection of plants in organic agriculture: PHYTOBIO and SMARTBIOCONTROL projects. - Etudes des potentialites de nouvelles biomolecules pour la protection des plantes en agriculture biologique les projets PHYTOBIO et SMARTBIOCONTROL}, author = {A Arguelles and François Krier and François Coutte and Valérie Leclère and Sébastien Lemière and Monica Höfte and Marc Ongena and Essaid-Ait Barka and Stephan Dorey and Cédric Jacquard and N G Khong and Benoit Tisserant and Béatrice Randoux and Philippe Reignault and Lieven Delanote and Nathalie Cap and Philippe Jacques}, year = {2017}, date = {2017-01-01}, booktitle = {6ème conférence internationale sur les méthodes alternatives de protection des plantes, 21-23 mars 2017, Lille}, note = {ACTN}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Wang D; Abriak Nor-Edine; Zentar Rachid Dredged marine sediments used as novel supply of filling materials for road construction Marine Georesources & …, 35(4), pp. 472-4801 @article{Wang2017, title = {Dredged marine sediments used as novel supply of filling materials for road construction}, author = {D Wang and Nor-Edine Abriak and Rachid Zentar}, url = {https://www.tandfonline.com/doi/abs/10.1080/1064119X.2016.1198945}, doi = {https://doi.org/10.1080/1064119X.2016.1198945}, year = {2017}, date = {2017-01-01}, journal = {Marine Georesources & …}, volume = {35}, number = {4}, pages = {472-480}, publisher = {Taylor & Francis}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Djafari D; Semcha A; Zentar Rachid; ... Journal of Materials …, 8(4), pp. 1350-13581 @article{Djafari2017, title = {Characterization and valorization of sludge of wastewater treatment plant (wwtps) into cement industry}, author = {D Djafari and A Semcha and Rachid Zentar and ...}, url = {http://www.jmaterenvironsci.com/Document/vol8/vol8_N4/143-JMES-3161-Djafari.pdf}, year = {2017}, date = {2017-01-01}, journal = {Journal of Materials …}, volume = {8}, number = {4}, pages = {1350-1358}, publisher = {jmaterenvironsci.com}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Beaumelle Léa; Hedde Mickaël; Vandenbulcke Franck; Lamy Isabelle Relationships between metal compartmentalization and biomarkers in earthworms exposed to field-contaminated soils Environmental Pollution, 224, pp. 185-1941 @article{Beaumelle2017, title = {Relationships between metal compartmentalization and biomarkers in earthworms exposed to field-contaminated soils}, author = {Léa Beaumelle and Mickaël Hedde and Franck Vandenbulcke and Isabelle Lamy}, year = {2017}, date = {2017-01-01}, journal = {Environmental Pollution}, volume = {224}, pages = {185-194}, abstract = {Partitioning tissue metal concentration into subcellular compartments reflecting toxicologically available pools may provide good descriptors of the toxicological effects of metals on organisms. Here we investigated the relationships between internal compartmentalization of Cd, Pb and Zn and biomarker responses in a model soil organism: the earthworm. The aim of this study was to identify metal fractions reflecting the toxic pressure in an endogeic, naturally occurring earthworm species (Aporrectodea caliginosa) exposed to realistic field-contaminated soils. After a 21 days exposure experiment to 31 field-contaminated soils, Cd, Pb and Zn concentrations in earthworms and in three subcellular ractions (cytosol, debris and granules) were quantified. Different biomarkers were measured: the expression of a metallothionein gene (mt), the activity of catalase (CAT) and of glutathione-s-transferase (GST), and the protein, lipid and glycogen reserves. Biomarkers were further combined into an integrated biomarker index (IBR). The subcellular fractionation provided better predictors of biomarkers than the total internal contents hence supporting its use when assessing toxicological bioavailability of metals to earthworms. The most soluble internal pools of metals were not always the best predictors of biomarker responses. metallothionein expression responded to increasing concentrations of Cd in the insoluble fraction (debris granules). Protein and glycogen contents were also mainly related to Cd and Pb in the insoluble fraction. On the other hand, GST activity was better explained by Pb in the cytosolic fraction. CAT activity and lipid contents variations were not related to metal subcellular distribution. The IBR was best explained by both soluble and insoluble fractions of Pb and Cd. This study further extends the scope of mt expression as a robust and specific biomarker in an ecologically representative earthworm species exposed to field-contaminated soils. The genetic lineage of the individuals, assessed by DNA barcoding with cytochrome c oxidase subunit I, did not influence mt expression. (C) 2017 Elsevier Ltd. All rights reserved.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Partitioning tissue metal concentration into subcellular compartments reflecting toxicologically available pools may provide good descriptors of the toxicological effects of metals on organisms. Here we investigated the relationships between internal compartmentalization of Cd, Pb and Zn and biomarker responses in a model soil organism: the earthworm. The aim of this study was to identify metal fractions reflecting the toxic pressure in an endogeic, naturally occurring earthworm species (Aporrectodea caliginosa) exposed to realistic field-contaminated soils. After a 21 days exposure experiment to 31 field-contaminated soils, Cd, Pb and Zn concentrations in earthworms and in three subcellular ractions (cytosol, debris and granules) were quantified. Different biomarkers were measured: the expression of a metallothionein gene (mt), the activity of catalase (CAT) and of glutathione-s-transferase (GST), and the protein, lipid and glycogen reserves. Biomarkers were further combined into an integrated biomarker index (IBR). The subcellular fractionation provided better predictors of biomarkers than the total internal contents hence supporting its use when assessing toxicological bioavailability of metals to earthworms. The most soluble internal pools of metals were not always the best predictors of biomarker responses. metallothionein expression responded to increasing concentrations of Cd in the insoluble fraction (debris granules). Protein and glycogen contents were also mainly related to Cd and Pb in the insoluble fraction. On the other hand, GST activity was better explained by Pb in the cytosolic fraction. CAT activity and lipid contents variations were not related to metal subcellular distribution. The IBR was best explained by both soluble and insoluble fractions of Pb and Cd. This study further extends the scope of mt expression as a robust and specific biomarker in an ecologically representative earthworm species exposed to field-contaminated soils. The genetic lineage of the individuals, assessed by DNA barcoding with cytochrome c oxidase subunit I, did not influence mt expression. (C) 2017 Elsevier Ltd. All rights reserved. |
Auteurs : Leclercq-Dransart Julie-Dransart; Demuynck Sylvain; Grumiaux Fabien; Lemière Sébastien; Pernin Céline; Leprêtre Alain Agir sur la « Trame brune » pour favoriser la mobilité de la faune du sol Journée de lancement du programme CPER Climibio, 6 septembre 2017, Lille @conference{Leclercq-Dransart2017, title = {Agir sur la « Trame brune » pour favoriser la mobilité de la faune du sol}, author = {Julie-Dransart Leclercq-Dransart and Sylvain Demuynck and Fabien Grumiaux and Sébastien Lemière and Céline Pernin and Alain Leprêtre}, year = {2017}, date = {2017-01-01}, booktitle = {Journée de lancement du programme CPER Climibio, 6 septembre 2017, Lille}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Leclercq-Dransart Julie; Demuynck Sylvain; Grumiaux Fabien; Lemière Sébastien; Pernin Céline; Leprêtre Alain Les isopodes terrestres face au dérèglement climatique 6ème journée du groupe de travail « TEBIS » (Traits Ecologiques et Biologiques des organismes des Sols), 2-4 octobre 2017, Metz @conference{Leclercq-Dransart2017a, title = {Les isopodes terrestres face au dérèglement climatique}, author = {Julie Leclercq-Dransart and Sylvain Demuynck and Fabien Grumiaux and Sébastien Lemière and Céline Pernin and Alain Leprêtre}, year = {2017}, date = {2017-01-01}, booktitle = {6ème journée du groupe de travail « TEBIS » (Traits Ecologiques et Biologiques des organismes des Sols), 2-4 octobre 2017, Metz}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Belles Angel; Alary Claire; Aminot Yann; Readman James-W.; Franke Christine Calibration and response of an agarose gel based passive sampler to record short pulses of aquatic organic pollutants Talanta, 165, pp. 1-81 @article{Belles2017, title = {Calibration and response of an agarose gel based passive sampler to record short pulses of aquatic organic pollutants}, author = {Angel Belles and Claire Alary and Yann Aminot and James-W. Readman and Christine Franke}, year = {2017}, date = {2017-01-01}, journal = {Talanta}, volume = {165}, pages = {1-8}, abstract = {A passive sampler inspired from previous devices was developed for the integrative sampling of a broad range of contaminants in the water column. Our primary objective was to improve the performance of the device to provide accurate and averaged pollutant water concentrations. For this purpose, an agarose diffusive gel was used as the boundary layer that drives the analyte uptake rate. Contrary to conventional passive samplers, the developed device does not require the sampling rates to be corrected for exposure conditions (e.g. hydrodynamic flow) because the diffusive gel boundary layer selected was sufficiently large to control the pollutant diffusion rate from the aqueous phase. The compounds diffusion coefficients in agarose gel and the gel thickness are the only required data to accurately calculate the time weighted averaged water concentration of pollutants. The performance of the developed sampler was evaluated in the laboratory under two contamination scenarios and in the field in 8 contrasting exposure sites for a selection of 16 emerging pollutants and pesticides. The results show that detection limits of this method are environmentally relevant and allow the determination of the averaged pollutant concentrations. Additionally, the ability of the device to sense very short contamination pulses (5–320 min) was evaluated through a theoretical approach and laboratory tests. Results show that the device is suitable for sampling contamination pulses as short as 5 min without deviation from the actual average concentrations of pollutants.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } A passive sampler inspired from previous devices was developed for the integrative sampling of a broad range of contaminants in the water column. Our primary objective was to improve the performance of the device to provide accurate and averaged pollutant water concentrations. For this purpose, an agarose diffusive gel was used as the boundary layer that drives the analyte uptake rate. Contrary to conventional passive samplers, the developed device does not require the sampling rates to be corrected for exposure conditions (e.g. hydrodynamic flow) because the diffusive gel boundary layer selected was sufficiently large to control the pollutant diffusion rate from the aqueous phase. The compounds diffusion coefficients in agarose gel and the gel thickness are the only required data to accurately calculate the time weighted averaged water concentration of pollutants. The performance of the developed sampler was evaluated in the laboratory under two contamination scenarios and in the field in 8 contrasting exposure sites for a selection of 16 emerging pollutants and pesticides. The results show that detection limits of this method are environmentally relevant and allow the determination of the averaged pollutant concentrations. Additionally, the ability of the device to sense very short contamination pulses (5–320 min) was evaluated through a theoretical approach and laboratory tests. Results show that the device is suitable for sampling contamination pulses as short as 5 min without deviation from the actual average concentrations of pollutants. |
Auteurs : Leclercq-Dransart Julie; Demuynck Sylvain; Grumiaux Fabien; Lemière Sébastien; Pernin Céline; Leprêtre Alain Les isopodes terrestres face aux changements climatiques Journée de lancement du programme CPER Climibio, 6 septembre 2017, Lille @conference{Leclercq-Dransart2017b, title = {Les isopodes terrestres face aux changements climatiques}, author = {Julie Leclercq-Dransart and Sylvain Demuynck and Fabien Grumiaux and Sébastien Lemière and Céline Pernin and Alain Leprêtre}, year = {2017}, date = {2017-01-01}, booktitle = {Journée de lancement du programme CPER Climibio, 6 septembre 2017, Lille}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Belles Angel; Alary Claire; Criquet Justine; Ivanovsky Anastasia; Billon Gabriel Assessing the transport of PAH in the surficial sediment layer by passive sampler approach Science of the Total Environment, 179, pp. 72-811 @article{Belles2017a, title = {Assessing the transport of PAH in the surficial sediment layer by passive sampler approach}, author = {Angel Belles and Claire Alary and Justine Criquet and Anastasia Ivanovsky and Gabriel Billon}, year = {2017}, date = {2017-01-01}, journal = {Science of the Total Environment}, volume = {179}, pages = {72-81}, abstract = {A new method based on passive samplers has been developed to assess the diffusive flux of fluorene, fluoranthene and pyrene in the sediment bed and across the sediment-water interface. The dissolved compound concentration gradient in the sediment in the vertical direction was measured at the outlet of a storm water pond by using polyethylene strips as passive samplers. Simultaneously, the dissipation of a set of tracer compounds preloaded in the passive samplers was measured to estimate the effective diffusion coefficients of the pollutants in the sediment. Both measurements were used to evaluate the diffusive flux of the compounds according to Fick's first law. The diffusive fluxes of the 3 studied compounds have been estimated with a centimetre-scale resolution in the upper 44 cm of the sediment. According to the higher compound diffusion coefficient and the steeper concentration gradient in the surficial sediment layer, the results show that the net flux of compounds near the sediment interface (1 cm depth) is on average 500 times higher than in the deep sediment, with average fluxes at 1 cm depth on the order of 5, 0.1 and 0.1 ng/m2/y for fluorene, fluoranthene and pyrene, respectively.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } A new method based on passive samplers has been developed to assess the diffusive flux of fluorene, fluoranthene and pyrene in the sediment bed and across the sediment-water interface. The dissolved compound concentration gradient in the sediment in the vertical direction was measured at the outlet of a storm water pond by using polyethylene strips as passive samplers. Simultaneously, the dissipation of a set of tracer compounds preloaded in the passive samplers was measured to estimate the effective diffusion coefficients of the pollutants in the sediment. Both measurements were used to evaluate the diffusive flux of the compounds according to Fick's first law. The diffusive fluxes of the 3 studied compounds have been estimated with a centimetre-scale resolution in the upper 44 cm of the sediment. According to the higher compound diffusion coefficient and the steeper concentration gradient in the surficial sediment layer, the results show that the net flux of compounds near the sediment interface (1 cm depth) is on average 500 times higher than in the deep sediment, with average fluxes at 1 cm depth on the order of 5, 0.1 and 0.1 ng/m2/y for fluorene, fluoranthene and pyrene, respectively. |
Auteurs : Leclercq-Dransart Julie; Santorufo Lucia; Pernin Céline; Louvel Brice; Demuynck Sylvain; Grumiaux Fabien; Douay Francis; Leprêtre Alain Efficacité de méthodes de phytomanagement sur la fonctionnalité de sols fortement contaminés par les métaux Société Française d'Ecotoxicologie Fondamentale et Appliquée, 29-30 juin 2017, Lille @conference{Leclercq-Dransart2017c, title = {Efficacité de méthodes de phytomanagement sur la fonctionnalité de sols fortement contaminés par les métaux}, author = {Julie Leclercq-Dransart and Lucia Santorufo and Céline Pernin and Brice Louvel and Sylvain Demuynck and Fabien Grumiaux and Francis Douay and Alain Leprêtre}, year = {2017}, date = {2017-01-01}, booktitle = {Société Française d'Ecotoxicologie Fondamentale et Appliquée, 29-30 juin 2017, Lille}, abstract = {Le site atelier metaleurop situé dans l'ancien bassin minier du nord - pas de calais, présente des paysages fortement dégradés par les activités humaines (urbanisation, activités industrielles, agriculture intensive). la forte contamination des sols en métaux aux alentours de l’ancienne fonderie metaleurop nord est bien connue et plusieurs études ont été menées sur le secteur (e.g: comportement des métaux dans le sol et phytomanagement [1,2], risques sanitaires [3] et communautés biologiques [4,5]). une expérimentation a été mise en place sur le terrain pendant 10 mois avec pour objectif d'évaluer l'efficacité de méthodes de remédiation mises en place depuis 17 ans sur des sols contaminés en métaux et fortement dégradés. il s'agit de plantations mixtes ou mono-spécifiques couplées ou non à l'utilisation de cendres volantes comme amendement pour limiter la mobilité des métaux dans le sol. l'approche mise en oeuvre est basée sur le suivi de la dégradation d'une litière de peuplier selon les différents modes de gestion et sa colonisation par les organismes de la mésofaune, connus pour intervenir lors de la dégradation de la matière organique et fournir de nombreux services écosystémiques [6]. la technique des sacs de litière a été utilisée. les principaux résultats montrent que la dégradation de la litière est significativement plus rapide sur la plantation mixte que la monospécifique en été ce qui pourrait s'expliquer par une plus forte abondance de la mésofaune et/ou des conditions abiotiques (humidité, ombrage…) plus favorables à l'activité de celle-ci. en revanche, aucune différence significative n'a été observée entre les parcelles amendées (dégradation de la litière apportée et communautés mésofauniques) et celle soumise au seul phytomanagement. on note que les communautés sont perturbées et que l'abondance des organismes détritivores est faible ce qui pourrait expliquer une dégradation des litières plus lente qu'attendue. ainsi, parmi les méthodes de phytomanagement testées sur le site expérimental, les plantations mixtes pourraient apporter un bénéfice pour la restauration des sols dégradés. l'emploi de cendres volantes n'a pas d'incidence notable sur la fonctionnalité des sols.}, note = {ACTN}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Le site atelier metaleurop situé dans l'ancien bassin minier du nord - pas de calais, présente des paysages fortement dégradés par les activités humaines (urbanisation, activités industrielles, agriculture intensive). la forte contamination des sols en métaux aux alentours de l’ancienne fonderie metaleurop nord est bien connue et plusieurs études ont été menées sur le secteur (e.g: comportement des métaux dans le sol et phytomanagement [1,2], risques sanitaires [3] et communautés biologiques [4,5]). une expérimentation a été mise en place sur le terrain pendant 10 mois avec pour objectif d'évaluer l'efficacité de méthodes de remédiation mises en place depuis 17 ans sur des sols contaminés en métaux et fortement dégradés. il s'agit de plantations mixtes ou mono-spécifiques couplées ou non à l'utilisation de cendres volantes comme amendement pour limiter la mobilité des métaux dans le sol. l'approche mise en oeuvre est basée sur le suivi de la dégradation d'une litière de peuplier selon les différents modes de gestion et sa colonisation par les organismes de la mésofaune, connus pour intervenir lors de la dégradation de la matière organique et fournir de nombreux services écosystémiques [6]. la technique des sacs de litière a été utilisée. les principaux résultats montrent que la dégradation de la litière est significativement plus rapide sur la plantation mixte que la monospécifique en été ce qui pourrait s'expliquer par une plus forte abondance de la mésofaune et/ou des conditions abiotiques (humidité, ombrage…) plus favorables à l'activité de celle-ci. en revanche, aucune différence significative n'a été observée entre les parcelles amendées (dégradation de la litière apportée et communautés mésofauniques) et celle soumise au seul phytomanagement. on note que les communautés sont perturbées et que l'abondance des organismes détritivores est faible ce qui pourrait expliquer une dégradation des litières plus lente qu'attendue. ainsi, parmi les méthodes de phytomanagement testées sur le site expérimental, les plantations mixtes pourraient apporter un bénéfice pour la restauration des sols dégradés. l'emploi de cendres volantes n'a pas d'incidence notable sur la fonctionnalité des sols. |
Auteurs : Slaby Sylvain; Hanotel Julie; Marchand Guillaume; Lescuyer Arlette; Bodart Jean-François; Leprêtre Alain; Lemière Sébastien; Marin Matthieu Maturation of Xenopus laevis oocytes under cadmium and lead exposures: cell biology investigations Aquatic Toxicology, 193, pp. 105-1101 @article{Slaby2017, title = {Maturation of Xenopus laevis oocytes under cadmium and lead exposures: cell biology investigations}, author = {Sylvain Slaby and Julie Hanotel and Guillaume Marchand and Arlette Lescuyer and Jean-François Bodart and Alain Leprêtre and Sébastien Lemière and Matthieu Marin}, year = {2017}, date = {2017-01-01}, journal = {Aquatic Toxicology}, volume = {193}, pages = {105-110}, abstract = {Since amphibians are recognised as good models to assess the quality of environments, only few studies have dealt with the impacts of chemical contaminants on their gametes, while toxic effects at this stage will alter all the next steps of their life cycle. therefore, we propose to investigate the oocyte maturation of xenopus laevis in cadmium- and lead-contaminated conditions. the impacts of cadmium and lead ions were explored on events involved in the hormone‐dependent process of maturation. in time-course experiments, cadmium, at the highest concentration, delayed and prevented the germinal vesicle breakdown. even in the absence of progesterone this ion could also induce it. no such spontaneous maturation was observed after lead exposures. an acceleration of the process at the highest tested concentration of lead (90 μm), in presence of progesterone, was recorded. cytological observations highlighted that cadmium exposures drove severe disturbances of meiotic spindle morphogenesis. at last, cadmium exposures altered the mapk pathway, regarding the activation of erk2 and rsk, but also the activation and the activity of the mpf, by disturbing the state of phosphorylation of cdc2 and histone h3. xenopus laevis oocytes were affected by these metal ion exposures, notably by cd2+. signatures of these metal exposures on the oocyte maturation were detected. this germ cell appeared to be a relevant model to assess the effects of environmental contaminants such as metals.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Since amphibians are recognised as good models to assess the quality of environments, only few studies have dealt with the impacts of chemical contaminants on their gametes, while toxic effects at this stage will alter all the next steps of their life cycle. therefore, we propose to investigate the oocyte maturation of xenopus laevis in cadmium- and lead-contaminated conditions. the impacts of cadmium and lead ions were explored on events involved in the hormone‐dependent process of maturation. in time-course experiments, cadmium, at the highest concentration, delayed and prevented the germinal vesicle breakdown. even in the absence of progesterone this ion could also induce it. no such spontaneous maturation was observed after lead exposures. an acceleration of the process at the highest tested concentration of lead (90 μm), in presence of progesterone, was recorded. cytological observations highlighted that cadmium exposures drove severe disturbances of meiotic spindle morphogenesis. at last, cadmium exposures altered the mapk pathway, regarding the activation of erk2 and rsk, but also the activation and the activity of the mpf, by disturbing the state of phosphorylation of cdc2 and histone h3. xenopus laevis oocytes were affected by these metal ion exposures, notably by cd2+. signatures of these metal exposures on the oocyte maturation were detected. this germ cell appeared to be a relevant model to assess the effects of environmental contaminants such as metals. |
Auteurs : Slaby Sylvain; Hanotel Julie; Marchand Guillaume; Lescuyer Arlette; Bodart Jean-François; Leprêtre Alain; Lemière Sébastien; Marin Matthieu Xenopus oocyte responses after cadmium and lead exposures: a cell biology investigation SETAC, 7-11 May 2017, Brussels (Belgique) @conference{Slaby2017a, title = {Xenopus oocyte responses after cadmium and lead exposures: a cell biology investigation}, author = {Sylvain Slaby and Julie Hanotel and Guillaume Marchand and Arlette Lescuyer and Jean-François Bodart and Alain Leprêtre and Sébastien Lemière and Matthieu Marin}, year = {2017}, date = {2017-01-01}, booktitle = {SETAC, 7-11 May 2017, Brussels (Belgique)}, abstract = {Cadmium and lead are recognized as priority contaminants to be monitored in the environment. they are toxic (behavioural, morphological, cellular and biochemical disturbances) for numerous organisms. amphibians are especially threatened by contaminant exposures, whatever the stage of their life cycle. our previous studies demonstrated that cd, but not pb, seriously impacted different aspects of the xenopus laevis’ oocyte maturation. from these observations, we aim to highlight specific targets of metal contaminant exposures in the xenopus oocyte. thus, (1) meiosis resumption kinetic studies, (2) analysis of meiotic spindle formation and (3) immuno-detection of some major biochemical actors of the maturation process (mitogen activated protein kinase pathway, mapk, and m-phase promoting factor, mpf) were conducted. the same concentrations tested in previous studies (0 to 25 mg.l-1 of metal chlorides) were used. for cd, (1) we observed only for 25 mg.l-1, that the germinal vesical breakdown (gvbd) was slowed down and also non hormono-induced maturations. (2) ectopic and/or abnormal spindles as well as disorganised chromosomes were present for all exposure concentrations (0.25 to 25 mg.l-1). (3) no deregulation in the mapk pathway was engendered, but disturbances in the mpf pathway were reported. this last result could be related to the cytological observations. concerning pb, (1) gvbd kinetics showed contrasted profiles. it seemed that a delay occurred at the end (since 720 min) for 0.25 mg.l-1. in contrast, for 25 mg.l 1, a transitory acceleration was recorded during the maturation. no other effect in term of cytological and biochemical analysis (2 and 3) were observed for pb exposures. from all these results, we can conclude that cd and pb did not affect the same cellular targets and could have specific exposure signatures. this study, in addition to our previous ones, contributed to better understand the effects of these metal contaminants in the first stages of the amphibian life cycle: oocyte and embryo. with similar approaches, works with other contaminants are in progress.}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Cadmium and lead are recognized as priority contaminants to be monitored in the environment. they are toxic (behavioural, morphological, cellular and biochemical disturbances) for numerous organisms. amphibians are especially threatened by contaminant exposures, whatever the stage of their life cycle. our previous studies demonstrated that cd, but not pb, seriously impacted different aspects of the xenopus laevis’ oocyte maturation. from these observations, we aim to highlight specific targets of metal contaminant exposures in the xenopus oocyte. thus, (1) meiosis resumption kinetic studies, (2) analysis of meiotic spindle formation and (3) immuno-detection of some major biochemical actors of the maturation process (mitogen activated protein kinase pathway, mapk, and m-phase promoting factor, mpf) were conducted. the same concentrations tested in previous studies (0 to 25 mg.l-1 of metal chlorides) were used. for cd, (1) we observed only for 25 mg.l-1, that the germinal vesical breakdown (gvbd) was slowed down and also non hormono-induced maturations. (2) ectopic and/or abnormal spindles as well as disorganised chromosomes were present for all exposure concentrations (0.25 to 25 mg.l-1). (3) no deregulation in the mapk pathway was engendered, but disturbances in the mpf pathway were reported. this last result could be related to the cytological observations. concerning pb, (1) gvbd kinetics showed contrasted profiles. it seemed that a delay occurred at the end (since 720 min) for 0.25 mg.l-1. in contrast, for 25 mg.l 1, a transitory acceleration was recorded during the maturation. no other effect in term of cytological and biochemical analysis (2 and 3) were observed for pb exposures. from all these results, we can conclude that cd and pb did not affect the same cellular targets and could have specific exposure signatures. this study, in addition to our previous ones, contributed to better understand the effects of these metal contaminants in the first stages of the amphibian life cycle: oocyte and embryo. with similar approaches, works with other contaminants are in progress. |
Auteurs : Lemercier Blandine; Laroche Bertrand; Armand Romain; Chafchafi Ahmed; Détriché Sébastien; Ducommun Christophe; Jalabert Stéphanie; Lehmann Sébastien Guide d’utilisation des bases de données sol pour la production de cartes thématiques Réseau Mixte Technologique Sols & Territoires, 110 p, @book{Lemercier2017, title = {Guide d’utilisation des bases de données sol pour la production de cartes thématiques}, author = {Blandine Lemercier and Bertrand Laroche and Romain Armand and Ahmed Chafchafi and Sébastien Détriché and Christophe Ducommun and Stéphanie Jalabert and Sébastien Lehmann}, year = {2017}, date = {2017-01-01}, publisher = {Réseau Mixte Technologique Sols & Territoires, 110 p}, note = {OV}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {book} } |
Auteurs : Lemière Sébastien Soil environmental genotoxicity: past and actual tools, future needs International Conference of Environmental Biotechnology, 12 December 2017, Czestochowa (Poland) @conference{Lemiere2017, title = {Soil environmental genotoxicity: past and actual tools, future needs}, author = {Sébastien Lemière}, year = {2017}, date = {2017-01-01}, booktitle = {International Conference of Environmental Biotechnology, 12 December 2017, Czestochowa (Poland)}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Slaby Sylvain; Lescuyer Arlette; Marchand Guillaume; Leprêtre Alain; Bodart Jean-François; Marin Matthieu; Lemière Sébastien Intérêt de l'ovocyte de xénope en écotoxicologie Société Française d'Ecotoxicologie Fondamentale et Appliquée, 29-30 juin 2017, Lille @conference{Slaby2017b, title = {Intérêt de l'ovocyte de xénope en écotoxicologie}, author = {Sylvain Slaby and Arlette Lescuyer and Guillaume Marchand and Alain Leprêtre and Jean-François Bodart and Matthieu Marin and Sébastien Lemière}, year = {2017}, date = {2017-01-01}, booktitle = {Société Française d'Ecotoxicologie Fondamentale et Appliquée, 29-30 juin 2017, Lille}, note = {ACTN}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Slaby Sylvain; Lescuyer Arlette; Marchand Guillaume; Leprêtre Alain; Bodart Jean-François; Marin Matthieu; Lemière Sébastien Xenopus oocytes in environmental toxicology: a promising tool ? 18th International Symposium on Toxicity Assesment, 16- 21 July 2017, Limeira (Brazil) @conference{Slaby2017c, title = {Xenopus oocytes in environmental toxicology: a promising tool ?}, author = {Sylvain Slaby and Arlette Lescuyer and Guillaume Marchand and Alain Leprêtre and Jean-François Bodart and Matthieu Marin and Sébastien Lemière}, year = {2017}, date = {2017-01-01}, booktitle = {18th International Symposium on Toxicity Assesment, 16- 21 July 2017, Limeira (Brazil)}, abstract = {Amphibians stand for organisms of choice to assess toxicity. for example, the fetax test (frog embryo teratogenesis assay – xenopus) allows quick testing of chemicals with endpoints such as survival, growth and malformations of tadpoles. we develop complementary methods in amphibian toxicology, using xenopus laevis oocytes and young tadpoles as biological models. indeed the xenopus oocytes present many advantages: they are easy to handle and could be obtained in large numbers. their life cycle is well known and all the cells were synchronous. so different types of toxicity endpoints can be assessed with these gametes, regarding key moments of their cycle when conducted in contaminated environments. in a same way, contaminant exposures on fertilization and the precocious embryonic development can be performed. we will present the different kinds of data that can be obtained from maturation and survival ratios, analysis of meiotic spindle formation, to physiological data or automatic biometric measurements on tadpoles. several exposures have been conducted using environmental contaminants as metals (lead, cadmium) and pesticides (glyphosate, deltamethrin) and obtained results will be presented. analyzing early stages procured complementary information to preexisting methods. moreover oocytes seem to be particularly impacted in case of some exposures and suggest that they could be considered as a pertinent model to assess environmental contaminants effects.}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Amphibians stand for organisms of choice to assess toxicity. for example, the fetax test (frog embryo teratogenesis assay – xenopus) allows quick testing of chemicals with endpoints such as survival, growth and malformations of tadpoles. we develop complementary methods in amphibian toxicology, using xenopus laevis oocytes and young tadpoles as biological models. indeed the xenopus oocytes present many advantages: they are easy to handle and could be obtained in large numbers. their life cycle is well known and all the cells were synchronous. so different types of toxicity endpoints can be assessed with these gametes, regarding key moments of their cycle when conducted in contaminated environments. in a same way, contaminant exposures on fertilization and the precocious embryonic development can be performed. we will present the different kinds of data that can be obtained from maturation and survival ratios, analysis of meiotic spindle formation, to physiological data or automatic biometric measurements on tadpoles. several exposures have been conducted using environmental contaminants as metals (lead, cadmium) and pesticides (glyphosate, deltamethrin) and obtained results will be presented. analyzing early stages procured complementary information to preexisting methods. moreover oocytes seem to be particularly impacted in case of some exposures and suggest that they could be considered as a pertinent model to assess environmental contaminants effects. |
Auteurs : Alhaik Ghaith; Ferreira Michel; Dubois Vincent; Wirquin Eric; Tilloy Sébastien; Monflier Eric; Aouad Georges Enhance the rheological and mechanical properties of clayey materials by adding starches Construction and Building Materials, 139, pp. 602 - 6101ISSN: 0950-0618 @article{ALHAIK2017602, title = {Enhance the rheological and mechanical properties of clayey materials by adding starches}, author = {Ghaith Alhaik and Michel Ferreira and Vincent Dubois and Eric Wirquin and Sébastien Tilloy and Eric Monflier and Georges Aouad}, url = {http://www.sciencedirect.com/science/article/pii/S0950061816318992}, doi = {https://doi.org/10.1016/j.conbuildmat.2016.11.130}, issn = {0950-0618}, year = {2017}, date = {2017-01-01}, journal = {Construction and Building Materials}, volume = {139}, pages = {602 - 610}, abstract = {This research work highlights the rheological and mechanical behavior of clayey/starch mixes. Several native and derivate starches have been studied in association with two types of clayey materials : quarry fines and kaolinite. The mixes were manufactured with a constant starch/clayey material ratio of 1%. The optimal water content has been determinate by the flow test. The rheological and mechanical tests have shown a significant effect of starch on the properties of mixes. In the rheological part, most starches have induced an increase up to four times the thixotropic index for quarry fines, while a decrease of this parameter has been observed with the kaolinite. From a mechanical point of view, all starches increase mechanical strengths whatever the clayey material.}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } This research work highlights the rheological and mechanical behavior of clayey/starch mixes. Several native and derivate starches have been studied in association with two types of clayey materials : quarry fines and kaolinite. The mixes were manufactured with a constant starch/clayey material ratio of 1%. The optimal water content has been determinate by the flow test. The rheological and mechanical tests have shown a significant effect of starch on the properties of mixes. In the rheological part, most starches have induced an increase up to four times the thixotropic index for quarry fines, while a decrease of this parameter has been observed with the kaolinite. From a mechanical point of view, all starches increase mechanical strengths whatever the clayey material. |
Auteurs : Souleman Dima Genetic consequences of colonization of a metal-polluted environment, population genetics and quantitative genetics approaches Thèse de l’Université de Lille 1, 198pp, @phdthesis{Souleman2017, title = {Genetic consequences of colonization of a metal-polluted environment, population genetics and quantitative genetics approaches}, author = {Dima Souleman}, year = {2017}, date = {2017-01-01}, school = {Thèse de l’Université de Lille 1, 198pp}, abstract = {Les habitats naturels sont de plus en plus détruits et fragmentés par l'expansion urbaine et les activités humaines. la fragmentation des espaces naturels et agricoles par les bâtiments et les nouvelles infrastructures affecte la taille, la connectivité et la qualité des habitats. les populations d’organismes vivants sur ces territoires anthropisés sont alors plus isolées. or, la différenciation entre populations d’un même organisme dépend de processus démographiques et génétiques tels que la dérive génétique, le flux génétique, la mutation et la sélection naturelle. la persistance et le développement des populations dans des conditions environnementales modifiées dépendent de mécanismes de tolérance. dans ce contexte, l'introduction de contaminants tels que des métaux dans l'environnement peut influencer l'évolution des plantes et des animaux en modifiant les forces évolutives et en créant des différences entre populations. dans ce travail, l’attention a été portée sur les conséquences génétiques de la pollution métallique sur deux espèces, le ver de terre lumbricus terrestris et une plante modèle arabidopsis halleri. deux approches différentes ont été utilisées pour étudier la réponse génétique à la contamination métallique : une approche de génétique des populations chez l. terrestris et une approche de génétique quantitative chez a. halleri. tout d’abord, il s’est agi d’identifier et de valider de nouveaux marqueurs microsatellites chez l. terrestris. ensuite, ces marqueurs ont été utilisés afin de caractériser la diversité génétique neutre chez des vers collectés sur des sites agricoles et urbanisés. parallèlement, l'architecture génétique de la tolérance et de l'hyperaccumulation de zn chez a. halleri a été explorée à l’aide d’un croisement intraspécifique entre une population métallicole et une population non métallicole. une densité élevée de marqueurs snp a été utilisée pour procéder à l'étape de cartographie qtl.}, note = {TH}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {phdthesis} } Les habitats naturels sont de plus en plus détruits et fragmentés par l'expansion urbaine et les activités humaines. la fragmentation des espaces naturels et agricoles par les bâtiments et les nouvelles infrastructures affecte la taille, la connectivité et la qualité des habitats. les populations d’organismes vivants sur ces territoires anthropisés sont alors plus isolées. or, la différenciation entre populations d’un même organisme dépend de processus démographiques et génétiques tels que la dérive génétique, le flux génétique, la mutation et la sélection naturelle. la persistance et le développement des populations dans des conditions environnementales modifiées dépendent de mécanismes de tolérance. dans ce contexte, l'introduction de contaminants tels que des métaux dans l'environnement peut influencer l'évolution des plantes et des animaux en modifiant les forces évolutives et en créant des différences entre populations. dans ce travail, l’attention a été portée sur les conséquences génétiques de la pollution métallique sur deux espèces, le ver de terre lumbricus terrestris et une plante modèle arabidopsis halleri. deux approches différentes ont été utilisées pour étudier la réponse génétique à la contamination métallique : une approche de génétique des populations chez l. terrestris et une approche de génétique quantitative chez a. halleri. tout d’abord, il s’est agi d’identifier et de valider de nouveaux marqueurs microsatellites chez l. terrestris. ensuite, ces marqueurs ont été utilisés afin de caractériser la diversité génétique neutre chez des vers collectés sur des sites agricoles et urbanisés. parallèlement, l'architecture génétique de la tolérance et de l'hyperaccumulation de zn chez a. halleri a été explorée à l’aide d’un croisement intraspécifique entre une population métallicole et une population non métallicole. une densité élevée de marqueurs snp a été utilisée pour procéder à l'étape de cartographie qtl. |
Auteurs : Vogt-Wu Tingting; Antczak Emmanuel; Brachelet Franck; Defer Didier A simple inverse method for monitoring the thermal characteristics of the limestone in an individual house International COnference on Materials ans Energy (ICOME 2017)Tianjin China @conference{Wu2017, title = {A simple inverse method for monitoring the thermal characteristics of the limestone in an individual house}, author = {Tingting Vogt-Wu and Emmanuel Antczak and Franck Brachelet and Didier Defer}, year = {2017}, date = {2017-01-01}, booktitle = {International COnference on Materials ans Energy (ICOME 2017)}, organization = {Tianjin China}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Koufi Lounes; Younsi Zohir; Cherif Yassine; Naji Hassane Int. J. Therm. Sci., 116, pp. 103 - 1171ISSN: 1290-0729 @article{KOUFI2017103, title = {Numerical investigation of turbulent mixed convection in an open cavity: Effect of inlet and outlet openings}, author = {Lounes Koufi and Zohir Younsi and Yassine Cherif and Hassane Naji}, url = {http://www.sciencedirect.com/science/article/pii/S1290072916312467}, doi = {https://doi.org/10.1016/j.ijthermalsci.2017.02.007}, issn = {1290-0729}, year = {2017}, date = {2017-01-01}, journal = {Int. J. Therm. Sci.}, volume = {116}, pages = {103 - 117}, abstract = {This paper deals with the numerical investigation of heat transfer by mixed convection inside ventilated cavities with supply and exhaust slots, and filled with air under a steady and turbulent flow regime. Four configurations, rated A, B, C and D are considered here, according to the position of the inlet and outlet air ports: A, the inlet is on the top of the left vertical wall, while the outlet is on the bottom of the right vertical wall; B, the inlet is on the bottom of the left vertical wall and the outlet at the top of the opposite wall; C, the two slots are on the same side, i.e. the inlet is at the bottom and the outlet at the top of the left vertical wall, and D, the inlet is at the top and the outlet at the bottom of the left vertical wall. The bottom of the cavity is kept at a temperature TH and other walls are fixed at a temperature TC, with TH>TC. The cavity is provided with two slots: an inlet slot for introducing fresh air, and an outlet slot to extract hot air. The main aim sought here is to analyze the ventilation efficiency for temperature distribution, and fix the best configuration providing the thermal comfort targeted. We also address the influence of heating on the behavior of flow and thermal comfort, while considering different Rayleigh numbers ranging from 6.4×108 to 3.2×109. Numerical studies have been yet devoted to these configurations, using RANS simulations. The RNG k-ε turbulence model has been adopted for the turbulence closure, and the set of governing equations was then numerically solved via the finite volume method. The SIMPLEC algorithm was associated to ensure the pressure-velocity coupling. In terms of results achieved, the configuration D provides a better ventilation effectiveness for temperature distribution εT and ensures an even temperature in the occupied zone. As for configurations A and C, they maintain an acceptable level of heat and can be used in winter period to ensure good indoor air quality, while configuration B provides an efficiency close to unity and can be used to insure indoor air quality in temperate climate zones.}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } This paper deals with the numerical investigation of heat transfer by mixed convection inside ventilated cavities with supply and exhaust slots, and filled with air under a steady and turbulent flow regime. Four configurations, rated A, B, C and D are considered here, according to the position of the inlet and outlet air ports: A, the inlet is on the top of the left vertical wall, while the outlet is on the bottom of the right vertical wall; B, the inlet is on the bottom of the left vertical wall and the outlet at the top of the opposite wall; C, the two slots are on the same side, i.e. the inlet is at the bottom and the outlet at the top of the left vertical wall, and D, the inlet is at the top and the outlet at the bottom of the left vertical wall. The bottom of the cavity is kept at a temperature TH and other walls are fixed at a temperature TC, with TH>TC. The cavity is provided with two slots: an inlet slot for introducing fresh air, and an outlet slot to extract hot air. The main aim sought here is to analyze the ventilation efficiency for temperature distribution, and fix the best configuration providing the thermal comfort targeted. We also address the influence of heating on the behavior of flow and thermal comfort, while considering different Rayleigh numbers ranging from 6.4×108 to 3.2×109. Numerical studies have been yet devoted to these configurations, using RANS simulations. The RNG k-ε turbulence model has been adopted for the turbulence closure, and the set of governing equations was then numerically solved via the finite volume method. The SIMPLEC algorithm was associated to ensure the pressure-velocity coupling. In terms of results achieved, the configuration D provides a better ventilation effectiveness for temperature distribution εT and ensures an even temperature in the occupied zone. As for configurations A and C, they maintain an acceptable level of heat and can be used in winter period to ensure good indoor air quality, while configuration B provides an efficiency close to unity and can be used to insure indoor air quality in temperate climate zones. |
Auteurs : Suleiman Hanine; Rorat Agnieszka; Grobelak Anna; Grosser Anna; Milczarek Marcin; Płytycz Barbara; Kacprzak Małgorzata; Vandenbulcke Franck Determination of the performance of vermicomposting process applied to sewage sludge by monitoring of the compost quality and immune responses in three earthworm species: Eisenia fetida, Eisenia andrei and Dendrobaena veneta Bioresource Technology, 241, pp. 103-1121 @article{Suleiman2017, title = {Determination of the performance of vermicomposting process applied to sewage sludge by monitoring of the compost quality and immune responses in three earthworm species: Eisenia fetida, Eisenia andrei and Dendrobaena veneta}, author = {Hanine Suleiman and Agnieszka Rorat and Anna Grobelak and Anna Grosser and Marcin Milczarek and Barbara Płytycz and Małgorzata Kacprzak and Franck Vandenbulcke}, year = {2017}, date = {2017-01-01}, journal = {Bioresource Technology}, volume = {241}, pages = {103-112}, abstract = {The aim of this study was to assess the effectiveness of vermicomposting process applied on three different sewage sludge (precomposted with grass clippings, sawdust and municipal solid wastes) using three different earthworm species. selected immune parameters, namely biomarkers of stress and metal body burdens, have been used to biomonitor the vermicomposting process and to assess the impact of contaminants on earthworm’s physiology. biotic and abiotic parameters were also used in order to monitor the process and the quality of the final product. dendrobaena veneta exhibited much lower resistance in all experimental conditions, as the bodyweight and the total number of circulating immune cells decreased in the most contaminated conditions. all earthworm species accumulated heavy metals as follows cd > co > cu > zn > ni > pb > cr: eisenia sp. worms exhibited the highest ability to accumulate several heavy metals. vermicompost obtained after 45 days was acceptable according to agronomic parameters and to compost quality norms in france and poland}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The aim of this study was to assess the effectiveness of vermicomposting process applied on three different sewage sludge (precomposted with grass clippings, sawdust and municipal solid wastes) using three different earthworm species. selected immune parameters, namely biomarkers of stress and metal body burdens, have been used to biomonitor the vermicomposting process and to assess the impact of contaminants on earthworm’s physiology. biotic and abiotic parameters were also used in order to monitor the process and the quality of the final product. dendrobaena veneta exhibited much lower resistance in all experimental conditions, as the bodyweight and the total number of circulating immune cells decreased in the most contaminated conditions. all earthworm species accumulated heavy metals as follows cd > co > cu > zn > ni > pb > cr: eisenia sp. worms exhibited the highest ability to accumulate several heavy metals. vermicompost obtained after 45 days was acceptable according to agronomic parameters and to compost quality norms in france and poland |
Auteurs : Bourdelle Franck; Mosser-Ruck Régine; Truche Laurent; Lorgeoux Catherine; Pignatelli Isabella; Michau Nicolas A new view on iron-claystone interactions under hydrothermal conditions (90 °C) by monitoring in situ pH evolution and H2 generation Chemical Geology, 466, pp. 600-6071 @article{Bourdelle2017, title = {A new view on iron-claystone interactions under hydrothermal conditions (90 °C) by monitoring in situ pH evolution and H2 generation}, author = {Franck Bourdelle and Régine Mosser-Ruck and Laurent Truche and Catherine Lorgeoux and Isabella Pignatelli and Nicolas Michau}, year = {2017}, date = {2017-01-01}, journal = {Chemical Geology}, volume = {466}, pages = {600-607}, abstract = {Many countries are considering the geological disposal of high-level radioactive waste combining natural clayey and engineered barriers (e.g. steel canister, bentonite, clay host rock, concrete). This configuration can lead to metallic iron-claystone interactions. Although a lot of experimental data on iron/clay interactions already exists, none of it allows the understanding and quantifying of the close interactions between the mineralogical transformations and the iron corrosion process. To fill this gap, a parametric kinetic investigation of iron/claystone interactions at 90 °C in a water saturated-anoxic medium was carried out. A new approach is adopted to monitor a series of original experiments with various Fe0/claystone mass ratios. The continuous in situ monitoring of H2 production and of pH time-evolution allows to precisely follow the reaction rate and the chemical changes induced by the mineralogical transformations. In addition, gas composition and solid run products were characterized. We highlight that the Callovo-Oxfordian claystone of the Paris Basin (France) investigated here, in contact with metallic iron, drives the iron corrosion process, by controlling some medium parameters (like pH) and by acting as a Fe-consumer incorporating the released iron into neoformed Fe-rich clays minerals.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Many countries are considering the geological disposal of high-level radioactive waste combining natural clayey and engineered barriers (e.g. steel canister, bentonite, clay host rock, concrete). This configuration can lead to metallic iron-claystone interactions. Although a lot of experimental data on iron/clay interactions already exists, none of it allows the understanding and quantifying of the close interactions between the mineralogical transformations and the iron corrosion process. To fill this gap, a parametric kinetic investigation of iron/claystone interactions at 90 °C in a water saturated-anoxic medium was carried out. A new approach is adopted to monitor a series of original experiments with various Fe0/claystone mass ratios. The continuous in situ monitoring of H2 production and of pH time-evolution allows to precisely follow the reaction rate and the chemical changes induced by the mineralogical transformations. In addition, gas composition and solid run products were characterized. We highlight that the Callovo-Oxfordian claystone of the Paris Basin (France) investigated here, in contact with metallic iron, drives the iron corrosion process, by controlling some medium parameters (like pH) and by acting as a Fe-consumer incorporating the released iron into neoformed Fe-rich clays minerals. |
Auteurs : Lemière Sébastien; Vasseur Paule Soil environmental genotoxicity: past and actual tools, future needs 18th International Symposium on Toxicity Assesment, 16- 21 July 2017, Limeira (Brazil) @conference{Lemiere2017a, title = {Soil environmental genotoxicity: past and actual tools, future needs}, author = {Sébastien Lemière and Paule Vasseur}, year = {2017}, date = {2017-01-01}, booktitle = {18th International Symposium on Toxicity Assesment, 16- 21 July 2017, Limeira (Brazil)}, abstract = {It is now established that risk assessment and management strategies for contaminated environments should consider biological responses, including environmental genotoxicity. the characterization of terrestrial ecosystem contamination by genotoxicants requires to assess their environmental and toxicological bioavailabilities and to identify adverse effects at the individual and population levels. genotoxicity in field species is assessed by means of markers focusing on genomic alterations and dna damage, like dna adducts (less used lately), micronuclei and nuclear abnormalities and dna breaks. epigenetic changes are not investigated so far. the comet assay (with the use or not of endonucleases) has nowadays largely supplanted pre-existing techniques for dna damage assessment. all these tools/techniques have first been used, optimized and validated with aquatic species. their application to soil species has emerged in a second step and is now widespread. we will present briefly some results illustrating interests of the comet assay to approach the “genotoxic bioavailability” of terrestrial contaminants and their effects on earthworms. in both aquatic and terrestrial environments, genotoxicity is generally measured in somatic cells. in some cases, it could be related to mutations, embryo mortality or reproduction impairment. however, there is a need for works linking (1) genotoxicity in individuals and (2) population dynamics and genetics. studies with gametes, early life stages and juveniles, and in environmentally relevant conditions should be conducted to reach such objectives.}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } It is now established that risk assessment and management strategies for contaminated environments should consider biological responses, including environmental genotoxicity. the characterization of terrestrial ecosystem contamination by genotoxicants requires to assess their environmental and toxicological bioavailabilities and to identify adverse effects at the individual and population levels. genotoxicity in field species is assessed by means of markers focusing on genomic alterations and dna damage, like dna adducts (less used lately), micronuclei and nuclear abnormalities and dna breaks. epigenetic changes are not investigated so far. the comet assay (with the use or not of endonucleases) has nowadays largely supplanted pre-existing techniques for dna damage assessment. all these tools/techniques have first been used, optimized and validated with aquatic species. their application to soil species has emerged in a second step and is now widespread. we will present briefly some results illustrating interests of the comet assay to approach the “genotoxic bioavailability” of terrestrial contaminants and their effects on earthworms. in both aquatic and terrestrial environments, genotoxicity is generally measured in somatic cells. in some cases, it could be related to mutations, embryo mortality or reproduction impairment. however, there is a need for works linking (1) genotoxicity in individuals and (2) population dynamics and genetics. studies with gametes, early life stages and juveniles, and in environmentally relevant conditions should be conducted to reach such objectives. |
Auteurs : Leang Enghok; Tittelein Pierre; Zalewski Laurent; Lassue Stéphane Performance énergétique de parois solaires et stockage de l'énergie par chaleur latente Actes du CIFQ 2017Saint Lô, @inproceedings{leang_performance_2017, title = {Performance énergétique de parois solaires et stockage de l'énergie par chaleur latente}, author = {Enghok Leang and Pierre Tittelein and Laurent Zalewski and Stéphane Lassue}, year = {2017}, date = {2017-01-01}, booktitle = {Actes du CIFQ 2017}, address = {Saint Lô}, abstract = {Cet article présente tout d’abord la comparaison entre les résultats de simulations numériques issues d’un modèle de mur Trombe composite intégrant une paroi stockeuse en béton et les résultats de mesures. Y sont confrontées les valeurs de flux de chaleur, de température de surface extérieure et intérieure de paroi, et les températures liées à la lame d’air ventilée. Ensuite, en utilisant pour base le modèle présenté en première partie, les performances d’un mur Trombe composite avec une paroi stockeuse en béton classique sont comparées à celles d’un mur intégrant un matériau à changement de phase (MCP), en utilisant le logiciel Dymola/Modelica. Les différences entre l’énergie stockée par le béton par chaleur sensible et celle du MCP par chaleur latente durant le changement d’état (solide-liquide, liquide-solide), les transferts thermiques par conduction, convection et rayonnement sont étudiés dans cet article.}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {inproceedings} } Cet article présente tout d’abord la comparaison entre les résultats de simulations numériques issues d’un modèle de mur Trombe composite intégrant une paroi stockeuse en béton et les résultats de mesures. Y sont confrontées les valeurs de flux de chaleur, de température de surface extérieure et intérieure de paroi, et les températures liées à la lame d’air ventilée. Ensuite, en utilisant pour base le modèle présenté en première partie, les performances d’un mur Trombe composite avec une paroi stockeuse en béton classique sont comparées à celles d’un mur intégrant un matériau à changement de phase (MCP), en utilisant le logiciel Dymola/Modelica. Les différences entre l’énergie stockée par le béton par chaleur sensible et celle du MCP par chaleur latente durant le changement d’état (solide-liquide, liquide-solide), les transferts thermiques par conduction, convection et rayonnement sont étudiés dans cet article. |
Auteurs : Levrault Cécile; Bignon Laure; Mindus Claire; Collin Antoine; Leruste Hélène; Sahmer Karin; Bouvarel Isabelle; Guesdon Vanessa EBENE : a new welfare assessment method co-built with stakeholders tested in free range laying hen 7th International Conference on the Assessment of Animal Welfare at Farm and Group level, 5-8 September 2017, Ede (Pays-Bas) @conference{Levrault2017, title = {EBENE : a new welfare assessment method co-built with stakeholders tested in free range laying hen}, author = {Cécile Levrault and Laure Bignon and Claire Mindus and Antoine Collin and Hélène Leruste and Karin Sahmer and Isabelle Bouvarel and Vanessa Guesdon}, year = {2017}, date = {2017-01-01}, booktitle = {7th International Conference on the Assessment of Animal Welfare at Farm and Group level, 5-8 September 2017, Ede (Pays-Bas)}, abstract = {As requested from the poultry industry a shared and practical method of commercial poultry and rabbit welfare assessment was developed: ebene method. it should easily be implemented by the farmer and so its application has to be simple and fast (one hour). here, the work for free-range laying hens is presented. the assessment indicators were defined using both welfare quality® and several meetings with different stakeholders (scientists, customers, ngo, farmers). indicators were collected indirectly through a questionnaire submitted to farmers and directly without handling the hens using behavioural observations/tests and a sanitary condition assessment. two sampling methods were tested to collect indicators from behavioural observations/tests: 9 small areas (= met1, 2×1.5 m) vs 3 large areas (= met2, 2×3 m). seventeen farms were included in this study. the feasibility (duration+ practicability of the assessment) and indicator repeatability (intra and inter-observer) were tested. for intra observer repeatability, 9/10 behavioural indicators (gentle pecking = gp, severe pecking = sp}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } As requested from the poultry industry a shared and practical method of commercial poultry and rabbit welfare assessment was developed: ebene method. it should easily be implemented by the farmer and so its application has to be simple and fast (one hour). here, the work for free-range laying hens is presented. the assessment indicators were defined using both welfare quality® and several meetings with different stakeholders (scientists, customers, ngo, farmers). indicators were collected indirectly through a questionnaire submitted to farmers and directly without handling the hens using behavioural observations/tests and a sanitary condition assessment. two sampling methods were tested to collect indicators from behavioural observations/tests: 9 small areas (= met1, 2×1.5 m) vs 3 large areas (= met2, 2×3 m). seventeen farms were included in this study. the feasibility (duration+ practicability of the assessment) and indicator repeatability (intra and inter-observer) were tested. for intra observer repeatability, 9/10 behavioural indicators (gentle pecking = gp, severe pecking = sp |
Auteurs : Levrault Cécile; Bignon Laure; Mindus Claire; Collin Antoine; Leruste Hélène; Sahmer Karin; Bouvarel Isabelle; Guesdon Vanessa EBENE : une nouvelle méthode d’évaluation du bien-être co-construite avec les différentes parties prenantes testée en élevage poules pondeuse plein air Colloque bien-être animal : de la théorie à la pratique, 12-14 décembre 2017, Rennes @conference{Levrault2017a, title = {EBENE : une nouvelle méthode d’évaluation du bien-être co-construite avec les différentes parties prenantes testée en élevage poules pondeuse plein air}, author = {Cécile Levrault and Laure Bignon and Claire Mindus and Antoine Collin and Hélène Leruste and Karin Sahmer and Isabelle Bouvarel and Vanessa Guesdon}, year = {2017}, date = {2017-01-01}, booktitle = {Colloque bien-être animal : de la théorie à la pratique, 12-14 décembre 2017, Rennes}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Koufi Lounes; Younsi Zohir; Cherif Yassine; Naji Hassane Energy Procedia (ICOME 15 & ICOME 16), 139, pp. 710 - 7171ISSN: 1876-6102 @article{KOUFI2017710, title = {Numerical investigation and analysis of indoor air quality in a room based on impinging jet ventilation}, author = {Lounes Koufi and Zohir Younsi and Yassine Cherif and Hassane Naji}, url = {http://www.sciencedirect.com/science/article/pii/S1876610217356874}, doi = {https://doi.org/10.1016/j.egypro.2017.11.276}, issn = {1876-6102}, year = {2017}, date = {2017-01-01}, journal = {Energy Procedia (ICOME 15 & ICOME 16)}, volume = {139}, pages = {710 - 717}, abstract = {This study presents numerical investigation and analysis of carbon dioxide transport (CO2) within an isothermal three-dimensional room using impinging jet ventilation (IJV). The IJV is an effective strategy for use in buildings. The study is carried out under turbulent and transient flow regime. The URANS equations supplemented with energy and concentration equations are solved using the scStream code. We are targeting primarily the efficiency of the ventilation ɛC and the index of indoor air quality (IIAQ). The ventilation flow rate is 50 m3.h-1. Here, our ultimate aim is to analyse the behaviour of the flow and repartition of CO2 inside the room. The RNG k−ε model was adopted to handle the turbulence. CFD simulations were systematically checked through available experimental and/or numerical results. The obtained results indicated that the IJV ensures a homogeneous concentration distribution and a velocity of the ambient air less than 0.25 m.s-1. This is in agreement with the recommendations of ASHRAE Standard 55. The comparative results demonstrate that the IJV evacuates sufficiently the CO2 and ensures good air quality in an acceptable time.}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } This study presents numerical investigation and analysis of carbon dioxide transport (CO2) within an isothermal three-dimensional room using impinging jet ventilation (IJV). The IJV is an effective strategy for use in buildings. The study is carried out under turbulent and transient flow regime. The URANS equations supplemented with energy and concentration equations are solved using the scStream code. We are targeting primarily the efficiency of the ventilation ɛC and the index of indoor air quality (IIAQ). The ventilation flow rate is 50 m3.h-1. Here, our ultimate aim is to analyse the behaviour of the flow and repartition of CO2 inside the room. The RNG k−ε model was adopted to handle the turbulence. CFD simulations were systematically checked through available experimental and/or numerical results. The obtained results indicated that the IJV ensures a homogeneous concentration distribution and a velocity of the ambient air less than 0.25 m.s-1. This is in agreement with the recommendations of ASHRAE Standard 55. The comparative results demonstrate that the IJV evacuates sufficiently the CO2 and ensures good air quality in an acceptable time. |
Auteurs : Liné Clarisse; Pourrut Bertrand; Flahaut Emmanuel; Larue Camille High throughput biomarker set to evaluate carbon nanotube impact on plants International Conference on the Biogeochemistry of Trace Elements (ICOBTE), 16-20 July 2017, Zurich (Suisse) @conference{Line2017, title = {High throughput biomarker set to evaluate carbon nanotube impact on plants}, author = {Clarisse Liné and Bertrand Pourrut and Emmanuel Flahaut and Camille Larue}, year = {2017}, date = {2017-01-01}, booktitle = {International Conference on the Biogeochemistry of Trace Elements (ICOBTE), 16-20 July 2017, Zurich (Suisse)}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Lloret Emily; Bourdelle Franck; Verbeke Alexis; Mosser-Ruck Régine; Elmaleh Agnes Soil formation from mining residues: example of weathering of spoil tips, Hauts-de-France region Goldschmidt Conference, 14-18 août 2017, Paris @conference{Lloret2017, title = {Soil formation from mining residues: example of weathering of spoil tips, Hauts-de-France region}, author = {Emily Lloret and Franck Bourdelle and Alexis Verbeke and Régine Mosser-Ruck and Agnes Elmaleh}, year = {2017}, date = {2017-01-01}, booktitle = {Goldschmidt Conference, 14-18 août 2017, Paris}, abstract = {Spoil tips from coalfield symbolize the past mining and industrial activities of the north of france, becoming a scar in the landscape, classified to world heritage (unesco). they are mining residue storage coming from coal extraction, and are constituted by schists (carbonaceous material, quartz, illite, chlorite, pyrite) and scoria with coal residues. although these materials are considered as sterile, some of them present natural revegetation, the formation of a new soil and a novel ecosystem with pioneer species. moreover, spoil tips could be a source of pollution (e.g. metals, sulphur). all these aspects are either the cause or the consequence of a main process: the weathering of spoil tip bedrock materials. therefore, it is important to study this weathering to better understand relationships between mining residues and ecosystems. we selected two spoil tips with different characteristics: the haillicourt spoil tip (h-st) composed of black schists and presenting a short revegetation by pioneer plants, and the ostricourt spoil tip (o-st) with a similar bedrock material but presenting a strong colonization by a forest. a neoformed soil is clearly observable on o-st (with several horizons), but not really identifiable on h-st. neoformed soils were characterised via fine biogeochemical (ph, c/n ratio) and mineralogical (xrd, stxm-xanes, tem) analysis. products of spoil tip weathering mostly consist in interstratified clays and typical sulphur-bearing minerals (jarosite). these phases are more abundant where the vegetation is very developed. some ferich detrital phyllosilicates (as chlorite) are also identified and have a nanoscale intracrystalline zonation (stxm-xanes) of iron redox, resulting of a lower kinetic of weathering. these mineralogical investigations, coupling to c/n ratios and ph measurements (showing that o-st soils are more acidic than h-st soils), allow to constrain the interaction between revegetation of mining residues and the soil formation, giving important keys for the rational management of spoil tips.}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Spoil tips from coalfield symbolize the past mining and industrial activities of the north of france, becoming a scar in the landscape, classified to world heritage (unesco). they are mining residue storage coming from coal extraction, and are constituted by schists (carbonaceous material, quartz, illite, chlorite, pyrite) and scoria with coal residues. although these materials are considered as sterile, some of them present natural revegetation, the formation of a new soil and a novel ecosystem with pioneer species. moreover, spoil tips could be a source of pollution (e.g. metals, sulphur). all these aspects are either the cause or the consequence of a main process: the weathering of spoil tip bedrock materials. therefore, it is important to study this weathering to better understand relationships between mining residues and ecosystems. we selected two spoil tips with different characteristics: the haillicourt spoil tip (h-st) composed of black schists and presenting a short revegetation by pioneer plants, and the ostricourt spoil tip (o-st) with a similar bedrock material but presenting a strong colonization by a forest. a neoformed soil is clearly observable on o-st (with several horizons), but not really identifiable on h-st. neoformed soils were characterised via fine biogeochemical (ph, c/n ratio) and mineralogical (xrd, stxm-xanes, tem) analysis. products of spoil tip weathering mostly consist in interstratified clays and typical sulphur-bearing minerals (jarosite). these phases are more abundant where the vegetation is very developed. some ferich detrital phyllosilicates (as chlorite) are also identified and have a nanoscale intracrystalline zonation (stxm-xanes) of iron redox, resulting of a lower kinetic of weathering. these mineralogical investigations, coupling to c/n ratios and ph measurements (showing that o-st soils are more acidic than h-st soils), allow to constrain the interaction between revegetation of mining residues and the soil formation, giving important keys for the rational management of spoil tips. |
Auteurs : Chabannes Morgan; Becquart Frédéric; Garcia-Diaz Eric; Abriak Nor-Edine; Laurent Clerc Construction and Building Materials, 143, pp. 621 - 6321ISSN: 0950-0618 @article{CHABANNES2017621, title = {Experimental investigation of the shear behaviour of hemp and rice husk-based concretes using triaxial compression}, author = {Morgan Chabannes and Frédéric Becquart and Eric Garcia-Diaz and Nor-Edine Abriak and Clerc Laurent}, url = {http://www.sciencedirect.com/science/article/pii/S0950061817305378}, doi = {https://doi.org/10.1016/j.conbuildmat.2017.03.148}, issn = {0950-0618}, year = {2017}, date = {2017-01-01}, journal = {Construction and Building Materials}, volume = {143}, pages = {621 - 632}, abstract = {Lime and hemp concretes are used as infill materials manually tamped in timber stud walls or more recently in the form of precast blocks. In either case, the structural design practice of wood frame construction associated with hemp concrete does not assume any contribution of the plant-based concrete whereas it may contribute towards the racking strength of the wall. This work is intended to evaluate the shear behaviour of two different bio-based concretes by means of triaxial compression. Hemp shives and whole rice husks were mixed with a lime-based binder according to the same mix proportioning and mixes were vibro-compacted in cylindrical forms. Then, samples were cured at 23°C – 65%RH before being tested under unconfined and triaxial compression. The triaxial shear test was performed after 60days of curing on unsaturated specimens under drained conditions at air pressure and for increasing effective confining pressure (from 25 to 150kPa). It was possible to estimate the shear strength parameters (peak friction angle and cohesion) of the two plant-based concretes. Comparing results, it appears a consistent value of cohesion but a different friction angle related to the binder and the aggregate contributions respectively. This leads to a first analysis of the relationship between the composition of the concrete (plant aggregates cemented with a binder) and its shear strength. Furthermore, the ductility of plant-based concretes is markedly enhanced as the mean effective pressure increases. Finally, the shear strength of plant-based concretes should be considered as part of the design practice of building envelopes.}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } Lime and hemp concretes are used as infill materials manually tamped in timber stud walls or more recently in the form of precast blocks. In either case, the structural design practice of wood frame construction associated with hemp concrete does not assume any contribution of the plant-based concrete whereas it may contribute towards the racking strength of the wall. This work is intended to evaluate the shear behaviour of two different bio-based concretes by means of triaxial compression. Hemp shives and whole rice husks were mixed with a lime-based binder according to the same mix proportioning and mixes were vibro-compacted in cylindrical forms. Then, samples were cured at 23°C – 65%RH before being tested under unconfined and triaxial compression. The triaxial shear test was performed after 60days of curing on unsaturated specimens under drained conditions at air pressure and for increasing effective confining pressure (from 25 to 150kPa). It was possible to estimate the shear strength parameters (peak friction angle and cohesion) of the two plant-based concretes. Comparing results, it appears a consistent value of cohesion but a different friction angle related to the binder and the aggregate contributions respectively. This leads to a first analysis of the relationship between the composition of the concrete (plant aggregates cemented with a binder) and its shear strength. Furthermore, the ductility of plant-based concretes is markedly enhanced as the mean effective pressure increases. Finally, the shear strength of plant-based concretes should be considered as part of the design practice of building envelopes. |
Auteurs : Vandenbulcke Franck Silver nanoparticles in sewage sludge- a new threat? International Conference of Environmental Biotechnology. Ecole Polytechnique de Czestochowa, 12-13 Décember 2017 (Poland) @conference{Vandenbulcke2017, title = {Silver nanoparticles in sewage sludge- a new threat?}, author = {Franck Vandenbulcke}, year = {2017}, date = {2017-01-01}, booktitle = {International Conference of Environmental Biotechnology. Ecole Polytechnique de Czestochowa, 12-13 Décember 2017 (Poland)}, note = {INV}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Asli Mounir; Antczak Emmanuel; Brachelet Franck; Defer Didier; Chauchois Alexis Hygrothermal behaviour of a hemp concrete block, experimental and numerical results 2nd International Conference on Bio-based Building MaterialsClermont-Ferrand 2017 @conference{Asli2017b, title = {Hygrothermal behaviour of a hemp concrete block, experimental and numerical results}, author = {Mounir Asli and Emmanuel Antczak and Franck Brachelet and Didier Defer and Alexis Chauchois}, year = {2017}, date = {2017-01-01}, booktitle = {2nd International Conference on Bio-based Building Materials}, organization = {Clermont-Ferrand 2017}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Leblanc Alexandre; Lavie Antoine Three-dimensional-printed membrane-type acoustic metamaterial for low frequency sound attenuation J. Acoust. Soc. Am., 141(EL538), @article{Leblanc2017, title = {Three-dimensional-printed membrane-type acoustic metamaterial for low frequency sound attenuation}, author = {Alexandre Leblanc and Antoine Lavie}, doi = {http://dx.doi.org/10.1121/1.4984623}, year = {2017}, date = {2017-01-01}, journal = {J. Acoust. Soc. Am.}, volume = {141}, number = {EL538}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Sassine Emilio; Younsi Zohir; Cherif Yassine; Chauchois Alexis; Antczak Emmanuel Journal of Building Engineering, 14(Supplement C), pp. 15 - 231ISSN: 2352-7102 @article{SASSINE201715b, title = {Experimental determination of thermal properties of brick wall for existing construction in the north of France}, author = {Emilio Sassine and Zohir Younsi and Yassine Cherif and Alexis Chauchois and Emmanuel Antczak}, url = {http://www.sciencedirect.com/science/article/pii/S2352710216301292}, doi = {https://doi.org/10.1016/j.jobe.2017.09.007}, issn = {2352-7102}, year = {2017}, date = {2017-01-01}, journal = {Journal of Building Engineering}, volume = {14}, number = {Supplement C}, pages = {15 - 23}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Lors Christine; Ponge Jean-François; Damidot Denis The contribution of microscopy to chemical and ecotoxicological approaches in the environmental risk assessment of coal tar polluted soils CEMEPE & SECOTOX Conference, 25-30 June 2017, Thessaloniki (Greece) @conference{Lors2017, title = {The contribution of microscopy to chemical and ecotoxicological approaches in the environmental risk assessment of coal tar polluted soils}, author = {Christine Lors and Jean-François Ponge and Denis Damidot}, year = {2017}, date = {2017-01-01}, booktitle = {CEMEPE & SECOTOX Conference, 25-30 June 2017, Thessaloniki (Greece)}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Chikh Salah; yahia Lakhdari Abdelhamid; Younsi Zohir Non-Isothermal Phase Change Material in a Building Wall Under South Mediterranean Climate 10th International Conference on Computational Heat, Mass and Momentum Transfer (ICCHM2T 2017), Seoul, Korea May 28 - June 1, 2017. @conference{Chikh2017, title = {Non-Isothermal Phase Change Material in a Building Wall Under South Mediterranean Climate}, author = {Salah Chikh and Abdelhamid yahia Lakhdari and Zohir Younsi}, year = {2017}, date = {2017-01-01}, booktitle = {10th International Conference on Computational Heat, Mass and Momentum Transfer (ICCHM2T 2017), Seoul, Korea May 28 - June 1, 2017.}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Zaoui Ali; Ferhat Mohamed Exploring novel phases of Cd-O system at ambient pressure Physics Letters A, (396), pp. 717�7221 @article{Zaoui2017, title = {Exploring novel phases of Cd-O system at ambient pressure}, author = {Ali Zaoui and Mohamed Ferhat}, year = {2017}, date = {2017-01-01}, journal = {Physics Letters A}, number = {396}, pages = {717�722}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Zheng Yuanyuan; Zaoui Ali Wetting and nanodroplet contact angle of the clay 2:1 surface: The case of Na-montmorillonite (001) Applied Surface Science, (396), pp. 717�7221 @article{Zheng2017, title = {Wetting and nanodroplet contact angle of the clay 2:1 surface: The case of Na-montmorillonite (001)}, author = {Yuanyuan Zheng and Ali Zaoui}, year = {2017}, date = {2017-01-01}, journal = {Applied Surface Science}, number = {396}, pages = {717�722}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Maherzi Walid; Benzerzour Mahfoud; Mamindy-Pajany Yannick; van-Veen Eleanor; Boutouil Mohamed; Abriak Nor-Edine Beneficial reuse of Brest-Harbor (France)-dredged sediment as alternative material in road building: laboratory investigations Environmental Technology, 39(5), pp. 566-5801 @article{Maherzi2017, title = {Beneficial reuse of Brest-Harbor (France)-dredged sediment as alternative material in road building: laboratory investigations}, author = {Walid Maherzi and Mahfoud Benzerzour and Yannick Mamindy-Pajany and Eleanor van-Veen and Mohamed Boutouil and Nor-Edine Abriak}, year = {2017}, date = {2017-01-01}, journal = {Environmental Technology}, volume = {39}, number = {5}, pages = {566-580}, abstract = {The scarcity of natural aggregates promotes waste reuse as secondary raw material in the field of civil engineering. this article focuses on the beneficial reuse of marine-dredged sediments in road building. thus, mixtures of raw sediments and dredged sand collected from brest harbur (bretagne, france) were treated with road hydraulic binders. formulation were prepared and characterized as recommended by the french technical guidelines for soil treatment with lime and/or hydraulic binders. mechanical resistance results are quite similar for both the hydraulic binders, suggesting a similar reactivity with the studied sediment sample. however, some discrepancies can be noted on sustainability parameters. indeed, water resistance after immersion at 40°c is significantly better for the mixtures treated with cement containing more glass-forming oxides (sio2 + al2o3) and fluxing (fe2o3+cao + mgo + k2o + na2o). moreover, the both hydraulic binders can lead to swelling in the road materials as observed in scanning electron microscopy analyses. indeed, microscopic observations indicated volumetric swelling of treated samples, which is greatly influenced on the one side by ettringite quantity and on the other hand by the presence of water in pores material.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The scarcity of natural aggregates promotes waste reuse as secondary raw material in the field of civil engineering. this article focuses on the beneficial reuse of marine-dredged sediments in road building. thus, mixtures of raw sediments and dredged sand collected from brest harbur (bretagne, france) were treated with road hydraulic binders. formulation were prepared and characterized as recommended by the french technical guidelines for soil treatment with lime and/or hydraulic binders. mechanical resistance results are quite similar for both the hydraulic binders, suggesting a similar reactivity with the studied sediment sample. however, some discrepancies can be noted on sustainability parameters. indeed, water resistance after immersion at 40°c is significantly better for the mixtures treated with cement containing more glass-forming oxides (sio2 + al2o3) and fluxing (fe2o3+cao + mgo + k2o + na2o). moreover, the both hydraulic binders can lead to swelling in the road materials as observed in scanning electron microscopy analyses. indeed, microscopic observations indicated volumetric swelling of treated samples, which is greatly influenced on the one side by ettringite quantity and on the other hand by the presence of water in pores material. |
Auteurs : Lushnikova Anna; Zaoui Ali Improving mechanical properties of C-S-H from inserted carbon nanotubes, Journal of Physics and Chemistry of Solids, 105, pp. 72-801 @article{Lushnikova2017, title = {Improving mechanical properties of C-S-H from inserted carbon nanotubes,}, author = {Anna Lushnikova and Ali Zaoui}, year = {2017}, date = {2017-01-01}, journal = {Journal of Physics and Chemistry of Solids}, volume = {105}, pages = {72-80}, note = {ACL}, keywords = {Axe 1, ER1}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Maisto Giulia; Milano Vittoria; Santorufo Lucia Relationships among site characteristics, taxonomical structure and functional trait distribution of arthropods in forest, urban and agricultural soils of Southern Italy Ecological Research, 32(4), pp. 511-5211 @article{Maisto2017, title = {Relationships among site characteristics, taxonomical structure and functional trait distribution of arthropods in forest, urban and agricultural soils of Southern Italy}, author = {Giulia Maisto and Vittoria Milano and Lucia Santorufo}, year = {2017}, date = {2017-01-01}, journal = {Ecological Research}, volume = {32}, number = {4}, pages = {511-521}, abstract = {Urbanization and agriculture cause alterations in soil biodiversity. as arthropods quickly respond to soil changes, they have been recognized as good indicators of soil quality. this study aimed to evaluate if (1) soil physico-chemical properties act as environmental filters of the functional trait distribution of soil arthropod community; (2) the abundance of certain functional traits is linked to different land uses; (3) the taxonomical and functional approaches provide complementary information about the evaluation of biological soil quality. the study was performed at forest, agricultural and urban sites in downtown and surroundings of naples. the soils were characterized for texture, ph, organic matter content, water content, total cd, cr, cu, ni, pb and zn concentrations. the forest soils showed the highest organic matter and water contents, and the lowest metal concentrations; the agricultural soils showed the lowest organic matter and water contents and high cd and cu concentrations, whereas the urban soils showed high pb and zn concentrations. the forest soils showed the highest arthropod density, taxa richness and diversity. the distribution of the functional traits in the arthropod communities of the different land uses highlighted similarity only for the preference to occupy soil and for the percentage contribution of detritivores. the abundance of arthropods living above litter and omnivores were positively correlated to pb and zn concentrations, whereas predators were positively correlated to cu concentrations. the findings suggest that the arthropod identification at order level could be enough to detect differences in functional traits among forest, urban, and agricultural soils.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Urbanization and agriculture cause alterations in soil biodiversity. as arthropods quickly respond to soil changes, they have been recognized as good indicators of soil quality. this study aimed to evaluate if (1) soil physico-chemical properties act as environmental filters of the functional trait distribution of soil arthropod community; (2) the abundance of certain functional traits is linked to different land uses; (3) the taxonomical and functional approaches provide complementary information about the evaluation of biological soil quality. the study was performed at forest, agricultural and urban sites in downtown and surroundings of naples. the soils were characterized for texture, ph, organic matter content, water content, total cd, cr, cu, ni, pb and zn concentrations. the forest soils showed the highest organic matter and water contents, and the lowest metal concentrations; the agricultural soils showed the lowest organic matter and water contents and high cd and cu concentrations, whereas the urban soils showed high pb and zn concentrations. the forest soils showed the highest arthropod density, taxa richness and diversity. the distribution of the functional traits in the arthropod communities of the different land uses highlighted similarity only for the preference to occupy soil and for the percentage contribution of detritivores. the abundance of arthropods living above litter and omnivores were positively correlated to pb and zn concentrations, whereas predators were positively correlated to cu concentrations. the findings suggest that the arthropod identification at order level could be enough to detect differences in functional traits among forest, urban, and agricultural soils. |
Auteurs : Koufi Lounes; Cherif Yassine; Younsi Zohir; Naji Hassane Simulation numérique du transport d'un aéro-contaminant en convection naturelle @conference{Koufi2017a, title = {Simulation numérique du transport d'un aéro-contaminant en convection naturelle}, author = {Lounes Koufi and Yassine Cherif and Zohir Younsi and Hassane Naji}, year = {2017}, date = {2017-01-01}, journal = {XIIIème Colloque Interuniversitaire Franco-Québécois sur la Thermique des Systèmes, 22-24 mai 2017, LUSAC, Saint-Lô, France}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Koufi Lounes; Younsi Zohir; Naji Hassane Numerical investigation of turbulent double-diffusive mixed convection in a slot ventilated enclosure with supply air flow ports 23ème Congrès Français de Mécanique 2017, Lille, France, 28 Août-01 septembre 2017. @conference{Koufi2017b, title = {Numerical investigation of turbulent double-diffusive mixed convection in a slot ventilated enclosure with supply air flow ports}, author = {Lounes Koufi and Zohir Younsi and Hassane Naji}, year = {2017}, date = {2017-01-01}, booktitle = {23ème Congrès Français de Mécanique 2017, Lille, France, 28 Août-01 septembre 2017.}, note = {ACTN}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Chaâbene Zayneb Identification et mesures de biomarqueurs infra-individuels chez le palmier dattier (Phoenix dactylifera) lors d’une contamination métallique : prédiction des voies métaboliques et description des mécanismes de détoxication des métaux impliqués Thèse en co-tutelle Université de Sfax, Tunisie / Université de Lille 1, France, 368 pp, @phdthesis{Chaabene2017a, title = {Identification et mesures de biomarqueurs infra-individuels chez le palmier dattier (Phoenix dactylifera) lors d’une contamination métallique : prédiction des voies métaboliques et description des mécanismes de détoxication des métaux impliqués}, author = {Zayneb Chaâbene}, year = {2017}, date = {2017-01-01}, school = {Thèse en co-tutelle Université de Sfax, Tunisie / Université de Lille 1, France, 368 pp}, note = {TH}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {phdthesis} } |
Auteurs : Lachheb Mohamed; Younsi Zohir; Naji Hassane; Karkri Mustapha; Nasrallah Sassi Ben Thermal behavior of a hybrid PCM/plaster: A numerical and experimental investigation Applied Thermal Engineering, 111, pp. 49 - 591ISSN: 1359-4311 @article{Lachheb201749, title = {Thermal behavior of a hybrid PCM/plaster: A numerical and experimental investigation}, author = {Mohamed Lachheb and Zohir Younsi and Hassane Naji and Mustapha Karkri and Sassi Ben Nasrallah}, url = {https://www-sciencedirect-com.bibliopam.univ-catholille.fr/science/article/pii/S135943111631691X}, doi = {https://doi.org/10.1016/j.applthermaleng.2016.09.083}, issn = {1359-4311}, year = {2017}, date = {2017-01-01}, journal = {Applied Thermal Engineering}, volume = {111}, pages = {49 - 59}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Chaâbene Zayneb; Rekik Hakim-Imen; Kriaa Walid; Grubb C.-Douglas; Khemakhem Bassem; Vandenbulcke Franck; Mejdoub Hafedh; Elleuch Amine The phytochelatin synthase gene in date palm (Phoenix dactylifera L.): Phylogeny, evolution and expression Ecotoxicology and Environmental Safety, 140, pp. 7-171 @article{Chaabene2017b, title = {The phytochelatin synthase gene in date palm (Phoenix dactylifera L.): Phylogeny, evolution and expression}, author = {Zayneb Chaâbene and Hakim-Imen Rekik and Walid Kriaa and C.-Douglas Grubb and Bassem Khemakhem and Franck Vandenbulcke and Hafedh Mejdoub and Amine Elleuch}, year = {2017}, date = {2017-01-01}, journal = {Ecotoxicology and Environmental Safety}, volume = {140}, pages = {7-17}, abstract = {We studied date palm phytochelatin synthase type i (pdpcs1), which catalyzes the cytosolic synthesis of phytochelatins (pcs), a heavy metal binding protein, in plant cells. the gene encoding pdpcs1 (pdpcs) consists of 8 exons and 7 introns and encodes a protein of 528 amino acids. pcs gene history was studied using notung phylogeny. during evolution, gene loss from several lineages was predicted including proteobacteria, bilateria and brassicaceae. in addition, eleven gene duplication events appeared toward interior nodes of the reconciled tree and four gene duplication events appeared toward the external nodes. these latter sequences belong to species with a second copy of pcs suggesting that this gene evolved through subfunctionalization. pdpcs1 gene expression was measured in seedling hypocotyls exposed to cd, cu and cr using quantitative real-time polymerase chain reaction (qpcr). a pdpcs1 overexpression was evidenced in p. dactylifera seedlings exposed to metals suggesting that 1-the pdpcs1 gene is functional, 2-there is an implication of the enzyme in metal detoxification mechanisms. additionally, the structure of pdpcs1 was predicted using its homologue from nostoc (cyanobacterium, nspcs) as a template in discovery studio and pymol software. these analyses allowed us to identify the phytochelatin synthase type i enzyme in date palm (pdpcs1) via recognition of key consensus amino acids involved in the catalytic mechanism, and to propose a hypothetical binding and catalytic site for an additional substrate binding cavity.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } We studied date palm phytochelatin synthase type i (pdpcs1), which catalyzes the cytosolic synthesis of phytochelatins (pcs), a heavy metal binding protein, in plant cells. the gene encoding pdpcs1 (pdpcs) consists of 8 exons and 7 introns and encodes a protein of 528 amino acids. pcs gene history was studied using notung phylogeny. during evolution, gene loss from several lineages was predicted including proteobacteria, bilateria and brassicaceae. in addition, eleven gene duplication events appeared toward interior nodes of the reconciled tree and four gene duplication events appeared toward the external nodes. these latter sequences belong to species with a second copy of pcs suggesting that this gene evolved through subfunctionalization. pdpcs1 gene expression was measured in seedling hypocotyls exposed to cd, cu and cr using quantitative real-time polymerase chain reaction (qpcr). a pdpcs1 overexpression was evidenced in p. dactylifera seedlings exposed to metals suggesting that 1-the pdpcs1 gene is functional, 2-there is an implication of the enzyme in metal detoxification mechanisms. additionally, the structure of pdpcs1 was predicted using its homologue from nostoc (cyanobacterium, nspcs) as a template in discovery studio and pymol software. these analyses allowed us to identify the phytochelatin synthase type i enzyme in date palm (pdpcs1) via recognition of key consensus amino acids involved in the catalytic mechanism, and to propose a hypothetical binding and catalytic site for an additional substrate binding cavity. |
Auteurs : Bekkouche Mohammed Samai Rachid Djeffal Mohamed; Younsi Zohir; Benamrane Nacer; Cherier Mohamed Amélioration du confort par l’intégration des matériaux intelligents (MCP) 1st Int. Seminar on the Apport of the Simulation in Technological Innovation, Ghardaïa, Algeria, March, 07-08-2017. @conference{RachidDjeffal2017, title = {Amélioration du confort par l’intégration des matériaux intelligents (MCP)}, author = {Mohammed Samai Rachid Djeffal Mohamed Bekkouche and Zohir Younsi and Nacer Benamrane and Mohamed Cherier}, year = {2017}, date = {2017-01-01}, booktitle = {1st Int. Seminar on the Apport of the Simulation in Technological Innovation, Ghardaïa, Algeria, March, 07-08-2017.}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Belles Angel; Mamindy-Pajany Yannick; Alary Claire Simulation of aromatic polycyclic hydrocarbons remobilization from a river sediment using laboratory experiments supported by passive sampling techniques Environmental Science and Pollution Research, 23(3), pp. 2426-24361 @article{Bell2015a, title = {Simulation of aromatic polycyclic hydrocarbons remobilization from a river sediment using laboratory experiments supported by passive sampling techniques}, author = {Angel Belles and Yannick Mamindy-Pajany and Claire Alary}, year = {2016}, date = {2016-01-01}, journal = {Environmental Science and Pollution Research}, volume = {23}, number = {3}, pages = {2426-2436}, abstract = {Resuspension of bedded sediments was simulated under laboratory-controlled conditions in order to assess the amount of polycyclic aromatic hydrocarbons (PAH) remobilized in the dissolved fraction during one short and vigorous mixing. The desorbed amount of PAH was compared to the exchangeable fraction, the total amount of PAH sorbed on the sediment particles, and the dissolved PAH amount contained in the interstitial pore waters in order to evaluate the contribution of each fraction to the total amount of PAH released. To monitor the desorption of PAH and measure low trace level concentrations, passive samplers were used in an experimental open flow through exposure simulator. Results show that for the selected sediment, a substantial fraction of sorbed PAH (69 % of the total amount) is not available for remobilization in a depleted medium. Obtained data pinpoint that over 9 days, only 0.007 % of PAH are desorbed by passive diffusion through a water-sediment interface area of 415 cm2 and that an intense resuspension event of 15 min induces desorption of 0.015 % of PAH during the following 9 days. Results also highlight that during resuspension simulation, modifications of the sediment and the water body occurred since partitioning constants of some pollutants between sediment and water have significantly decreased.}, note = {ACL}, keywords = {Axe 1, ER2}, pubstate = {published}, tppubtype = {article} } Resuspension of bedded sediments was simulated under laboratory-controlled conditions in order to assess the amount of polycyclic aromatic hydrocarbons (PAH) remobilized in the dissolved fraction during one short and vigorous mixing. The desorbed amount of PAH was compared to the exchangeable fraction, the total amount of PAH sorbed on the sediment particles, and the dissolved PAH amount contained in the interstitial pore waters in order to evaluate the contribution of each fraction to the total amount of PAH released. To monitor the desorption of PAH and measure low trace level concentrations, passive samplers were used in an experimental open flow through exposure simulator. Results show that for the selected sediment, a substantial fraction of sorbed PAH (69 % of the total amount) is not available for remobilization in a depleted medium. Obtained data pinpoint that over 9 days, only 0.007 % of PAH are desorbed by passive diffusion through a water-sediment interface area of 415 cm2 and that an intense resuspension event of 15 min induces desorption of 0.015 % of PAH during the following 9 days. Results also highlight that during resuspension simulation, modifications of the sediment and the water body occurred since partitioning constants of some pollutants between sediment and water have significantly decreased. |
Auteurs : Mench Michel; Benot Marie-Lise; Castagneyrol Bastien; Marchand Lilian; Oustrière Nadège; Sæbø A; Persson T; Schröder Peter; Szulc Wieslaw; Vangronsveld Jaco; Witters Nele; Rineau François; Weyens Nele; Daniels S; Millán Rocio; Schmid Thomas; Poschenrieder Charlotte; Marmiroli Nelson; Maestri Elena; Douay Francis Intensify production, transform biomass to energy and novel goods and protect soils in Europe (INTENSE) The 5th International Conference on Soil Pollution and Remediation, 24-26 September 2016, HangZhou (China) @conference{Mench2016, title = {Intensify production, transform biomass to energy and novel goods and protect soils in Europe (INTENSE)}, author = {Michel Mench and Marie-Lise Benot and Bastien Castagneyrol and Lilian Marchand and Nadège Oustrière and A Sæbø and T Persson and Peter Schröder and Wieslaw Szulc and Jaco Vangronsveld and Nele Witters and François Rineau and Nele Weyens and S Daniels and Rocio Millán and Thomas Schmid and Charlotte Poschenrieder and Nelson Marmiroli and Elena Maestri and Francis Douay}, year = {2016}, date = {2016-01-01}, booktitle = {The 5th International Conference on Soil Pollution and Remediation, 24-26 September 2016, HangZhou (China)}, abstract = {Introduction facce surplus (sustainable and resilient agriculture for food and non-food systems) is an era-net cofund, formed in collaboration between the european commission and a partnership of 15 countries in the frame of the joint programming initiative on agriculture, food security and climate change (facce-jpi, https://www.faccejpi.com/themes/sustainable-intensification-of-agriculture/era-net-cofund-facce-surplus). facce surplus is committed to improve collaboration across the european research area in the range of diverse, but integrated, food and non-food biomass production and transformation systems, including biorefining. the intense project is one of the 14 projects selected for funding (http://faccesurplus.org/research-projects/intense/). it is responding to several of the “great challenges” for the 21st century, which are global food security, use of renewable raw materials and production of energy from biomass, for which the agricultural sector is important. intense will contribute to sustainable increase in food production, novel products for agriculture and new perspectives for european rural landscapes. future land use must embrace efficient production and utilization of biomass for improved economic, environmental and social outcomes (thewys et al 2010).}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Introduction facce surplus (sustainable and resilient agriculture for food and non-food systems) is an era-net cofund, formed in collaboration between the european commission and a partnership of 15 countries in the frame of the joint programming initiative on agriculture, food security and climate change (facce-jpi, https://www.faccejpi.com/themes/sustainable-intensification-of-agriculture/era-net-cofund-facce-surplus). facce surplus is committed to improve collaboration across the european research area in the range of diverse, but integrated, food and non-food biomass production and transformation systems, including biorefining. the intense project is one of the 14 projects selected for funding (http://faccesurplus.org/research-projects/intense/). it is responding to several of the “great challenges” for the 21st century, which are global food security, use of renewable raw materials and production of energy from biomass, for which the agricultural sector is important. intense will contribute to sustainable increase in food production, novel products for agriculture and new perspectives for european rural landscapes. future land use must embrace efficient production and utilization of biomass for improved economic, environmental and social outcomes (thewys et al 2010). |
Auteurs : Younsi Zohir; Naji Hassane; Lachheb Mohamed International Communications in Heat and Mass Transfer, 78, pp. 200 - 2061ISSN: 0735-1933 @article{Younsi2016200, title = {Numerical investigation of transient thermal behavior of a wall incorporating a phase change material via a hybrid scheme}, author = {Zohir Younsi and Hassane Naji and Mohamed Lachheb}, url = {https://www-sciencedirect-com.bibliopam.univ-catholille.fr/science/article/pii/S0735193316302603}, doi = {https://doi.org/10.1016/j.icheatmasstransfer.2016.09.007}, issn = {0735-1933}, year = {2016}, date = {2016-01-01}, journal = {International Communications in Heat and Mass Transfer}, volume = {78}, pages = {200 - 206}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Mosser-Ruck Régine; Pignatelli Isabella; Bourdelle Franck; Abdelmoula Mustapha; Barres Odile; Guillaume Damien; Charpentier Delphine; Rousset Davy; Cathelineau Michel; Michau Nicolas Contribution of long-term hydrothermal experiments for understanding the smectite-to-chlorite conversion in geological environments Contributions to Mineralogy and Petrology, 171(97), @article{Mosser-Ruck2016, title = {Contribution of long-term hydrothermal experiments for understanding the smectite-to-chlorite conversion in geological environments}, author = {Régine Mosser-Ruck and Isabella Pignatelli and Franck Bourdelle and Mustapha Abdelmoula and Odile Barres and Damien Guillaume and Delphine Charpentier and Davy Rousset and Michel Cathelineau and Nicolas Michau}, year = {2016}, date = {2016-01-01}, journal = {Contributions to Mineralogy and Petrology}, volume = {171}, number = {97}, abstract = {The smectite-to-chlorite conversion is investigated through long-duration experiments (up to 9 years) conducted at 300 °c. the starting products were the wyoming bentonite mx80 (79 % smectite), metallic iron and magnetite in contact with a na–ca chloride solution. the predominant minerals in the run products were an iron-rich chlorite (chamosite like) and interstratified clays interpreted to be chlorite/smectite and/or corrensite/smectite, accompanied by euhedral crystals of quartz, albite and zeolite. the formation of pure corrensite was not observed in the long-duration experiments. the conversion of smectite into chlorite over time appears to take place in several steps and through several successive mechanisms: a solid-state transformation, significant dissolution of the smectite and direct precipitation from the solution, which is over-saturated with respect to chlorite, allowing the formation of a chamosite-like mineral. the reaction mechanisms are confirmed by x-ray patterns and data obtained on the experimental solutions (ph, contents of si, mg, na and ca). because of the availability of some nutrients in the solution, total dissolution of the starting smectite does not lead to 100 % crystallization of chlorite but to a mixture of two dominant clays: chamosite and interstratified chlorite/smectite and/or corrensite/smectite poor in smectite. the role of fe/(fe + mg) in the experimental medium is highlighted by chemical data obtained on newly formed clay particles alongside previously published data. the newly formed iron-rich chlorite has the same composition as that predicted by the geothermometer for diagenetic to low-grade metamorphic conditions, and the quartz + fe-chlorite + albite experimental assemblage in the 9-year experiment is close to that fixed by water–rock equilibrium.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The smectite-to-chlorite conversion is investigated through long-duration experiments (up to 9 years) conducted at 300 °c. the starting products were the wyoming bentonite mx80 (79 % smectite), metallic iron and magnetite in contact with a na–ca chloride solution. the predominant minerals in the run products were an iron-rich chlorite (chamosite like) and interstratified clays interpreted to be chlorite/smectite and/or corrensite/smectite, accompanied by euhedral crystals of quartz, albite and zeolite. the formation of pure corrensite was not observed in the long-duration experiments. the conversion of smectite into chlorite over time appears to take place in several steps and through several successive mechanisms: a solid-state transformation, significant dissolution of the smectite and direct precipitation from the solution, which is over-saturated with respect to chlorite, allowing the formation of a chamosite-like mineral. the reaction mechanisms are confirmed by x-ray patterns and data obtained on the experimental solutions (ph, contents of si, mg, na and ca). because of the availability of some nutrients in the solution, total dissolution of the starting smectite does not lead to 100 % crystallization of chlorite but to a mixture of two dominant clays: chamosite and interstratified chlorite/smectite and/or corrensite/smectite poor in smectite. the role of fe/(fe + mg) in the experimental medium is highlighted by chemical data obtained on newly formed clay particles alongside previously published data. the newly formed iron-rich chlorite has the same composition as that predicted by the geothermometer for diagenetic to low-grade metamorphic conditions, and the quartz + fe-chlorite + albite experimental assemblage in the 9-year experiment is close to that fixed by water–rock equilibrium. |
Auteurs : Vidal Olivier; Lanari Pierre; Munoz Munoz; Bourdelle Franck; de-Andrade Vincent Deciphering temperature, pressure and oxygen-activity conditions of chlorite formation Clay Minerals, 51, pp. 615-6331 @article{Vidal2016, title = {Deciphering temperature, pressure and oxygen-activity conditions of chlorite formation}, author = {Olivier Vidal and Pierre Lanari and Munoz Munoz and Franck Bourdelle and Vincent de-Andrade}, year = {2016}, date = {2016-01-01}, journal = {Clay Minerals}, volume = {51}, pages = {615-633}, abstract = {The advantages and limits of empirical, semi-empirical and thermodynamic methods devoted to the estimation of chlorite-formation temperature are discussed briefly. the results of semiempirical and thermodynamic approaches with different assumptions regarding the redox state of iron in chlorite are compared for a large set of natural data covering a range of pressure conditions from a few hundred bars to 18 kbar and temperature from 100 to 500°c. the t-xfe3+ evolution estimated using the thermodynamic approach of vidal et al. (2005) shows a systematic increase in xfe3+ with decreasing temperature, which is compatible with the decrease in ao2 buffered by magnetite- or hematite-chlorite equilibrium. this trend as well as the observed increase in vacancies in chlorite with decreasing temperature is interpreted as the incorporation of fe3+-sudoite. the standard-state properties of this endmember have been derived to reproduce the observed t-ao2-xfe3+evolutions. it can be used to estimate t-ao2-xfe3 values with a chl-qtz-h2o multi-equilibrium approach. when combining our results with those of other studies published recently, it appears that thermodynamic approaches and mapping techniques developed for metamorphic rocks can be used to discuss the conditions of formation of very low-grade rocks where kinetics is much more sluggish than in metamorphic rocks. this requires use of appropriate analytical tools and techniques with a spatial resolution of a few hundred nanometres}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The advantages and limits of empirical, semi-empirical and thermodynamic methods devoted to the estimation of chlorite-formation temperature are discussed briefly. the results of semiempirical and thermodynamic approaches with different assumptions regarding the redox state of iron in chlorite are compared for a large set of natural data covering a range of pressure conditions from a few hundred bars to 18 kbar and temperature from 100 to 500°c. the t-xfe3+ evolution estimated using the thermodynamic approach of vidal et al. (2005) shows a systematic increase in xfe3+ with decreasing temperature, which is compatible with the decrease in ao2 buffered by magnetite- or hematite-chlorite equilibrium. this trend as well as the observed increase in vacancies in chlorite with decreasing temperature is interpreted as the incorporation of fe3+-sudoite. the standard-state properties of this endmember have been derived to reproduce the observed t-ao2-xfe3+evolutions. it can be used to estimate t-ao2-xfe3 values with a chl-qtz-h2o multi-equilibrium approach. when combining our results with those of other studies published recently, it appears that thermodynamic approaches and mapping techniques developed for metamorphic rocks can be used to discuss the conditions of formation of very low-grade rocks where kinetics is much more sluggish than in metamorphic rocks. this requires use of appropriate analytical tools and techniques with a spatial resolution of a few hundred nanometres |
Auteurs : Demuynck Sylvain; Lebel Aurélie; Grumiaux Fabien; Pernin Céline; Leprêtre Alain; Lemière Sébastien Comparative avoidance behaviour of the earthworm Eisenia fetida towards chloride, nitrate and sulphate salts of Cd, Cu and Zn using filter paper and extruded water agar gels as exposure media Ecotoxicology and Environmental Safety, 129, pp. 66-741 @article{Demuynck2016, title = {Comparative avoidance behaviour of the earthworm Eisenia fetida towards chloride, nitrate and sulphate salts of Cd, Cu and Zn using filter paper and extruded water agar gels as exposure media}, author = {Sylvain Demuynck and Aurélie Lebel and Fabien Grumiaux and Céline Pernin and Alain Leprêtre and Sébastien Lemière}, year = {2016}, date = {2016-01-01}, journal = {Ecotoxicology and Environmental Safety}, volume = {129}, pages = {66-74}, abstract = {We studied the avoidance behaviour of the earthworm eisenia fetida towards cd, cu, and zn, trace elements (tes) tested as chloride, nitrate and sulphate salts. sub adults were exposed individually using dual-cell chambers at 20+2 degrees c in the dark. recordings were realised at different dates from 2 h to 32 h. we used filter paper and extruded water agar gel as exposure media to evaluate the contribution of the dermal and the digestive exposure routes on the avoidance reactions. exposures to cu or cd (10 mg metal ion l-1) resulted in highly significant avoidance reactions through the exposure duration. worms avoided zn poorly and reactions towards zn salts varied along the exposure. worm sensitivity towards tes differed between salts and this could result from differential toxicity or accessibility of these te salts to earthworms. the anion in itself was not the determinant of the avoidance reactions since exposures to similar concentrations of these anions using calcium salts did not result in significant avoidance worm behaviour. avoidance responses towards tes were higher in the case of water agar exposures than in filter paper exposures. thus, dermal contacts with te solutions would elicit worm avoidance but signals from receptors located inside the digestive tract could reinforce this behaviour. the use of extruded water agar gels as the substrate allows checking the real sensitivity of earthworm species towards tes since the te concentrations leading to significant avoidance reactions were below those reported in the literature when using te-spiked soils. (c) 2016 elsevier inc all rights reserved.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } We studied the avoidance behaviour of the earthworm eisenia fetida towards cd, cu, and zn, trace elements (tes) tested as chloride, nitrate and sulphate salts. sub adults were exposed individually using dual-cell chambers at 20+2 degrees c in the dark. recordings were realised at different dates from 2 h to 32 h. we used filter paper and extruded water agar gel as exposure media to evaluate the contribution of the dermal and the digestive exposure routes on the avoidance reactions. exposures to cu or cd (10 mg metal ion l-1) resulted in highly significant avoidance reactions through the exposure duration. worms avoided zn poorly and reactions towards zn salts varied along the exposure. worm sensitivity towards tes differed between salts and this could result from differential toxicity or accessibility of these te salts to earthworms. the anion in itself was not the determinant of the avoidance reactions since exposures to similar concentrations of these anions using calcium salts did not result in significant avoidance worm behaviour. avoidance responses towards tes were higher in the case of water agar exposures than in filter paper exposures. thus, dermal contacts with te solutions would elicit worm avoidance but signals from receptors located inside the digestive tract could reinforce this behaviour. the use of extruded water agar gels as the substrate allows checking the real sensitivity of earthworm species towards tes since the te concentrations leading to significant avoidance reactions were below those reported in the literature when using te-spiked soils. (c) 2016 elsevier inc all rights reserved. |
Auteurs : Muchembled Jérôme; Deweer Caroline; Gelin D; Brehault L; Sahmer Karin; Halama Patrice Effets biofongicides de composés majoritaires d’huiles essentielles : applications in vitro sur deux souches s et r mefenoxam de Phytophthora infestans Natural Products & Biocontrol 2016, 21-23 septembre 2016, Perpignan @conference{Muchembled2016, title = {Effets biofongicides de composés majoritaires d’huiles essentielles : applications in vitro sur deux souches s et r mefenoxam de Phytophthora infestans}, author = {Jérôme Muchembled and Caroline Deweer and D Gelin and L Brehault and Karin Sahmer and Patrice Halama}, year = {2016}, date = {2016-01-01}, booktitle = {Natural Products & Biocontrol 2016, 21-23 septembre 2016, Perpignan}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Deparis Coralie Modalités de transferts de l’arsenic et du chrome au sein d’un substrat naturel argileux : influence des conditions physico-chimiques et de la présence de ligands Thèse de l’Université de Lille 1, 198pp, @phdthesis{Deparis2016, title = {Modalités de transferts de l’arsenic et du chrome au sein d’un substrat naturel argileux : influence des conditions physico-chimiques et de la présence de ligands}, author = {Coralie Deparis}, year = {2016}, date = {2016-01-01}, school = {Thèse de l’Université de Lille 1, 198pp}, abstract = {La compréhension du transfert des polluants et leurs mobilités dans les sols permet une meilleure approche des risques environnementaux. elle nécessite une bonne caractérisation du substrat recevant le polluant, la connaissance de l’état de spéciation du polluant et des mécanismes de rétention mis en place : sorption, précipitation, complexation. les mécanismes de transfert de l’arsenic (as) et du chrome (cr) sur un substrat naturel sont étudiés dans le cadre de cette thèse. le substrat, issu de la formation géologique de gault, est composé majoritairement de quartz, mica et d’argile (illite, smectite, kaolinite) avec la présence d’oxyde de fer sous forme de goethite. la méthodologie expérimentale repose sur une gamme de tests variée de type batch de sorption/désorption, dgt (diffusif gradient in thin film), extractions séquentielles, colonnes. un modèle géochimique de complexation de surface (mcs) est également mis en place pour approfondir la compréhension de la sorption d’as et du cr. les résultats montrent une rétention importante d’as (v) via des mécanismes de sorptions spécifiques sur les argiles et les oxydes de fer du substrat ainsi qu’une forte sensibilité de la sorption à la présence de phosphates dans le milieu. la sorption de cr (vi) sur le substrat est faible. la rétention de cr est donc soumise au processus de réduction de cr (vi) en cr (iii), cr (iii) étant thermodynamiquement stable sous forme précipité dans une large gamme de ph-eh. l’utilisation du mcs comme outil prédictif nécessite la levée de certains freins, liés aux systèmes complexes, mais permet de confirmer les hypothèses émissent à partir des résultats expérimentaux.}, note = {TH}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {phdthesis} } La compréhension du transfert des polluants et leurs mobilités dans les sols permet une meilleure approche des risques environnementaux. elle nécessite une bonne caractérisation du substrat recevant le polluant, la connaissance de l’état de spéciation du polluant et des mécanismes de rétention mis en place : sorption, précipitation, complexation. les mécanismes de transfert de l’arsenic (as) et du chrome (cr) sur un substrat naturel sont étudiés dans le cadre de cette thèse. le substrat, issu de la formation géologique de gault, est composé majoritairement de quartz, mica et d’argile (illite, smectite, kaolinite) avec la présence d’oxyde de fer sous forme de goethite. la méthodologie expérimentale repose sur une gamme de tests variée de type batch de sorption/désorption, dgt (diffusif gradient in thin film), extractions séquentielles, colonnes. un modèle géochimique de complexation de surface (mcs) est également mis en place pour approfondir la compréhension de la sorption d’as et du cr. les résultats montrent une rétention importante d’as (v) via des mécanismes de sorptions spécifiques sur les argiles et les oxydes de fer du substrat ainsi qu’une forte sensibilité de la sorption à la présence de phosphates dans le milieu. la sorption de cr (vi) sur le substrat est faible. la rétention de cr est donc soumise au processus de réduction de cr (vi) en cr (iii), cr (iii) étant thermodynamiquement stable sous forme précipité dans une large gamme de ph-eh. l’utilisation du mcs comme outil prédictif nécessite la levée de certains freins, liés aux systèmes complexes, mais permet de confirmer les hypothèses émissent à partir des résultats expérimentaux. |
Auteurs : Ghernoug Chahinez; Djezzar Mahfoud; Naji Hassane; Bouras Abdelkrim Int. J. of Numerical Methods for Heat & Fluid Flow, 26(5), pp. 1346 - 13641 @article{Ghernoug2016, title = {Towards numerical computation of double-diffusive natural convection within an eccentric horizontal cylindrical annulus}, author = {Chahinez Ghernoug and Mahfoud Djezzar and Hassane Naji and Abdelkrim Bouras}, doi = {https://doi.org/10.1108/HFF-10-2014-0330}, year = {2016}, date = {2016-01-01}, journal = {Int. J. of Numerical Methods for Heat & Fluid Flow}, volume = {26}, number = {5}, pages = {1346 - 1364}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Djebli A; Benhamena A; Aminallah L; Aid A; Benguediab M; Amrouche Abdelwaheb Mechanika, 22(5), pp. 371-3751 @article{Djebli2016371, title = {Three-dimensional finite element analysis of fracture behaviour of adhesively bonded single lap-joints}, author = {A Djebli and A Benhamena and L Aminallah and A Aid and M Benguediab and Abdelwaheb Amrouche}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84995743756&doi=10.5755%2fj01.mech.22.5.12879&partnerID=40&md5=6ce3f935bb693150f024ccc18a2b7246}, doi = {10.5755/j01.mech.22.5.12879}, year = {2016}, date = {2016-01-01}, journal = {Mechanika}, volume = {22}, number = {5}, pages = {371-375}, note = {cited By 0}, keywords = {Axe 1, ER3}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Khelil Ali; Naji Hassane; Loukarfi Larbi; Meliani Mohamed Hadj; Braikia Mohamed Applied Mathematical Modelling, 40(5–6), pp. 3749 - 37631ISSN: 0307-904X @article{Khelil2016, title = {Numerical simulation of the interactions among multiple turbulent swirling jets mounted in unbalanced positions}, author = {Ali Khelil and Hassane Naji and Larbi Loukarfi and Mohamed Hadj Meliani and Mohamed Braikia}, url = {http://www.sciencedirect.com/science/article/pii/S0307904X15007118}, doi = {https://doi.org/10.1016/j.apm.2015.10.047}, issn = {0307-904X}, year = {2016}, date = {2016-01-01}, journal = {Applied Mathematical Modelling}, volume = {40}, number = {5–6}, pages = {3749 - 3763}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : N'diaye Ismaïla; Essaifi Abderrahim; Dubois Michel; Lacroix Brice; Goodenough Kathryn-M.; Maacha Lhou Fluid flow and polymetallic sulfide mineralization in the Kettara shear zone (Jebilet Massif, Variscan Belt, Morocco) Journal of African Earth Sciences, 119, pp. 17-371 @article{Ndiaye2016, title = {Fluid flow and polymetallic sulfide mineralization in the Kettara shear zone (Jebilet Massif, Variscan Belt, Morocco)}, author = {Ismaïla N'diaye and Abderrahim Essaifi and Michel Dubois and Brice Lacroix and Kathryn-M. Goodenough and Lhou Maacha}, year = {2016}, date = {2016-01-01}, journal = {Journal of African Earth Sciences}, volume = {119}, pages = {17-37}, abstract = {The kettara shear zone is a regional wrench shear zone within the jebilet massif of western morocco, part of the variscan orogenic belt. this massif is characterized by bimodal magmatism, largely intrusive, and by a number of polymetallic massive sulfide deposits. a syntectonic mafic-ultramafic intrusion and an adjacent, deformed pyrrhotite-rich massive sulfide deposit are located within a ‘compressional jog’ of the shear zone. hydrothermal alteration in both the intrusion and the wall rocks adjacent to the deposit is characterized by syntectonic replacement processes leading to formation of chlorite-schists and quartz ± calcite veins. fluid inclusions in mineralized (pyrrhotite-bearing) quartz veins from the wall rocks adjacent to the deposit and in veins associated with chlorite-schists within the intrusion indicate a prevalence of h2o-co2-ch4-n2 and h2o-salt fluid systems. in the mineralized veins the fluid shows reducing conditions, with gas dominated by ch4 and n2 and salinities around 7.5 wt% nacl, whereas in the chlorite shear zones fluid is co2 dominated and salinities are higher than 23 wt% nacl. hydrogen and oxygen isotopic compositions of chlorite and quartz are similar and demonstrate involvement of metamorphic water in both the deposit and the intrusion. the data are consistent with a regional metamorphic fluid flow through the kettara shear zone. the migrating metamorphic fluids were reduced in the organic matter-rich host rocks leading to deposition of sulfides in the mineralized veins. there are two possible hypotheses for the origin of these mineralized veins: either they were formed during deformation and remobilization of a syn-sedimentary massive sulfide deposit, or they were formed synchronously with the sulfide deposit during development of the kettara shear zone.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The kettara shear zone is a regional wrench shear zone within the jebilet massif of western morocco, part of the variscan orogenic belt. this massif is characterized by bimodal magmatism, largely intrusive, and by a number of polymetallic massive sulfide deposits. a syntectonic mafic-ultramafic intrusion and an adjacent, deformed pyrrhotite-rich massive sulfide deposit are located within a ‘compressional jog’ of the shear zone. hydrothermal alteration in both the intrusion and the wall rocks adjacent to the deposit is characterized by syntectonic replacement processes leading to formation of chlorite-schists and quartz ± calcite veins. fluid inclusions in mineralized (pyrrhotite-bearing) quartz veins from the wall rocks adjacent to the deposit and in veins associated with chlorite-schists within the intrusion indicate a prevalence of h2o-co2-ch4-n2 and h2o-salt fluid systems. in the mineralized veins the fluid shows reducing conditions, with gas dominated by ch4 and n2 and salinities around 7.5 wt% nacl, whereas in the chlorite shear zones fluid is co2 dominated and salinities are higher than 23 wt% nacl. hydrogen and oxygen isotopic compositions of chlorite and quartz are similar and demonstrate involvement of metamorphic water in both the deposit and the intrusion. the data are consistent with a regional metamorphic fluid flow through the kettara shear zone. the migrating metamorphic fluids were reduced in the organic matter-rich host rocks leading to deposition of sulfides in the mineralized veins. there are two possible hypotheses for the origin of these mineralized veins: either they were formed during deformation and remobilization of a syn-sedimentary massive sulfide deposit, or they were formed synchronously with the sulfide deposit during development of the kettara shear zone. |
Auteurs : Waterlot Christophe; Goulas Anaïs Temperature effects on retention and separation of PAHs in reversed-phase liquid chromatography using columns packed with fully porous and core-shell particles Journal of Chemistry, 2016, pp. 1-121 @article{Waterlot2016, title = {Temperature effects on retention and separation of PAHs in reversed-phase liquid chromatography using columns packed with fully porous and core-shell particles}, author = {Christophe Waterlot and Anaïs Goulas}, year = {2016}, date = {2016-01-01}, journal = {Journal of Chemistry}, volume = {2016}, pages = {1-12}, abstract = {Effects of temperature on the reversed-phase chromatographic behavior of pahs were investigated on three columns. the first was the recent c18 column (250 mm × 4.6 mm) packed with 5 µm core-shell particles while the others were more conventional c18 columns (250 mm × 4.6 mm) packed with fully porous particles. among the 16 pahs studied, special attention has been paid to two pairs of pahs, fluorene/acenaphthene and chrysene/benzo[a]anthracene, which often present coeluting problems. due to the low surface area of the core-shell particles, lowest retention time of each pah was highlighted and effects of the temperature on the separation of pahs were negligible in regard to those using columns packed with fully porous particles. for each pah studied, it was demonstrated that peaks were symmetrical and may be considered as gaussian peaks when the column packed with core-shell particle was employed. in the best condition, the separation of pahs was conducted at 16°c under very low pressure values (670–950 psi = 46–65 bars). depending on pahs, the limit of detection ranged from 0.88 to 9.16 μg l−1. analysis of spiked acetonitrile samples with pahs at 10 and 50 µg l−1 and tap water at 10 µg l−1 gave very good recoveries (94%–109.3%) and high precision (1.1%–3.5%).}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Effects of temperature on the reversed-phase chromatographic behavior of pahs were investigated on three columns. the first was the recent c18 column (250 mm × 4.6 mm) packed with 5 µm core-shell particles while the others were more conventional c18 columns (250 mm × 4.6 mm) packed with fully porous particles. among the 16 pahs studied, special attention has been paid to two pairs of pahs, fluorene/acenaphthene and chrysene/benzo[a]anthracene, which often present coeluting problems. due to the low surface area of the core-shell particles, lowest retention time of each pah was highlighted and effects of the temperature on the separation of pahs were negligible in regard to those using columns packed with fully porous particles. for each pah studied, it was demonstrated that peaks were symmetrical and may be considered as gaussian peaks when the column packed with core-shell particle was employed. in the best condition, the separation of pahs was conducted at 16°c under very low pressure values (670–950 psi = 46–65 bars). depending on pahs, the limit of detection ranged from 0.88 to 9.16 μg l−1. analysis of spiked acetonitrile samples with pahs at 10 and 50 µg l−1 and tap water at 10 µg l−1 gave very good recoveries (94%–109.3%) and high precision (1.1%–3.5%). |
Auteurs : Waterlot Christophe; Pelfrêne Aurélie; Douay Francis Determining the influence of the physicochemical parameters of urban soils on As availability using chemometric methods: A preliminary study Journal of Environmental Sciences, 47, pp. 183-1921 @article{Waterlot2016a, title = {Determining the influence of the physicochemical parameters of urban soils on As availability using chemometric methods: A preliminary study}, author = {Christophe Waterlot and Aurélie Pelfrêne and Francis Douay}, year = {2016}, date = {2016-01-01}, journal = {Journal of Environmental Sciences}, volume = {47}, pages = {183-192}, abstract = {An initial exploration was conducted using mathematical and statistical methods to obtain relevant information about the determination of the physicochemical parameters capable of controlling As uptake by ryegrass grown on contaminated topsoils. Concentrations of As in the soils were from 10 to 47 mg/kg, mainly in the As(V) form (57%–73%). Concentrations of As in water extracts were very low (61–700 μg/kg). It was suggested that As(III) was mainly in the uncharged species and As(V) in the charged species. Chemometric methods revealed that the values of the ratio As(III)/As(V) depended on the assimilated-phosphorus, the pseudo-total and water-extractable Fe contents and the soil pH. Arsenic concentrations measured in ryegrass shoots ranged from 119 to 1602 μg/kg. Positive linear correlations were obtained between As in ryegrass shoots and water extractable-As. The transfer coefficient of As correlated well with the ratio assimilated-phosphorus/Fe-oxides. As(III) uptake by the shoot of ryegrass was controlled by the organic matter and Fe-oxide contents.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } An initial exploration was conducted using mathematical and statistical methods to obtain relevant information about the determination of the physicochemical parameters capable of controlling As uptake by ryegrass grown on contaminated topsoils. Concentrations of As in the soils were from 10 to 47 mg/kg, mainly in the As(V) form (57%–73%). Concentrations of As in water extracts were very low (61–700 μg/kg). It was suggested that As(III) was mainly in the uncharged species and As(V) in the charged species. Chemometric methods revealed that the values of the ratio As(III)/As(V) depended on the assimilated-phosphorus, the pseudo-total and water-extractable Fe contents and the soil pH. Arsenic concentrations measured in ryegrass shoots ranged from 119 to 1602 μg/kg. Positive linear correlations were obtained between As in ryegrass shoots and water extractable-As. The transfer coefficient of As correlated well with the ratio assimilated-phosphorus/Fe-oxides. As(III) uptake by the shoot of ryegrass was controlled by the organic matter and Fe-oxide contents. |
Auteurs : Détriché Sébastien; Pelfrêne Aurélie; Pinte Emilie; Cheppe Gaëtan; Douay Francis Les sols urbains de la Métropole Européenne de Lille (France) : Premiers éléments de caractérisation et enjeux 13èmes Journées d’étude des sols, 4-8 juillet 2016, Louvain-la-Neuve (Belgique) @conference{Detriche2016, title = {Les sols urbains de la Métropole Européenne de Lille (France) : Premiers éléments de caractérisation et enjeux}, author = {Sébastien Détriché and Aurélie Pelfrêne and Emilie Pinte and Gaëtan Cheppe and Francis Douay}, year = {2016}, date = {2016-01-01}, booktitle = {13èmes Journées d’étude des sols, 4-8 juillet 2016, Louvain-la-Neuve (Belgique)}, abstract = {Les études se focalisant sur les environnements et les sols urbains se sont multipliées au cours des dernières décennies, notamment en raison d’une urbanisation croissante au détriment des terres agricoles. de forts enjeux environnementaux, économiques, sociaux et sanitaires sont clairement identifiés quant à la connaissance et à la maîtrise de ces espaces en termes de gestion et de planification urbaine. les sols urbains constituent un compartiment environnemental complexe, réactif et susceptible d’assurer des services écosystémiques majeurs bien que soumis à des pressions anthropiques passées et actuelles fortes. les besoins de connaissance sur la qualité de ces sols et leur distribution spatiale sont en plein développement malgré les difficultés rencontrées en raison de fortes variabilités spatiales du degré d’anthropisation des sols, de l’hétérogénéité des méthodes d’échantillonnage et d’analyse, et de l’absence fréquente de valeurs de référence nationales en milieu urbain pour la caractérisation des pollutions. la problématique de la qualité des sols urbains et plus particulièrement celle des productions légumières au sein des jardins ou de requalification de friches industrielles est particulièrement importante sur le territoire de la métropole lilloise du fait de son lourd passé industriel, de sa forte densité de population et de l’étendue des surfaces urbanisées. ce travail se propose de porter un regard croisé sur les paramètres pédologiques et physico-chimiques de sols urbains (paramètres agronomiques classiques, degré de contamination en métaux et polluants organiques, teneurs et nature des éléments grossiers...) caractérisés sur de la métropole lilloise lors de différents programmes de recherches. ces sols ont été caractérisés dans différents contextes environnementaux tels que des délaissés infrastructuraux, des friches industrielles, des jardins familiaux et partagés... ils présentent des caractéristiques en lien étroit avec les usages des espaces étudiés et ce, au regard des activités anthropiques passées et actuelles au droit des sites (activités industrielles, remaniements, apports et altération de matériaux, pratiques culturales...) et/ou de la proximité actuelle ou passée de potentielles sources de contamination (industries, infrastructures de transport, chauffage urbain...)}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } Les études se focalisant sur les environnements et les sols urbains se sont multipliées au cours des dernières décennies, notamment en raison d’une urbanisation croissante au détriment des terres agricoles. de forts enjeux environnementaux, économiques, sociaux et sanitaires sont clairement identifiés quant à la connaissance et à la maîtrise de ces espaces en termes de gestion et de planification urbaine. les sols urbains constituent un compartiment environnemental complexe, réactif et susceptible d’assurer des services écosystémiques majeurs bien que soumis à des pressions anthropiques passées et actuelles fortes. les besoins de connaissance sur la qualité de ces sols et leur distribution spatiale sont en plein développement malgré les difficultés rencontrées en raison de fortes variabilités spatiales du degré d’anthropisation des sols, de l’hétérogénéité des méthodes d’échantillonnage et d’analyse, et de l’absence fréquente de valeurs de référence nationales en milieu urbain pour la caractérisation des pollutions. la problématique de la qualité des sols urbains et plus particulièrement celle des productions légumières au sein des jardins ou de requalification de friches industrielles est particulièrement importante sur le territoire de la métropole lilloise du fait de son lourd passé industriel, de sa forte densité de population et de l’étendue des surfaces urbanisées. ce travail se propose de porter un regard croisé sur les paramètres pédologiques et physico-chimiques de sols urbains (paramètres agronomiques classiques, degré de contamination en métaux et polluants organiques, teneurs et nature des éléments grossiers...) caractérisés sur de la métropole lilloise lors de différents programmes de recherches. ces sols ont été caractérisés dans différents contextes environnementaux tels que des délaissés infrastructuraux, des friches industrielles, des jardins familiaux et partagés... ils présentent des caractéristiques en lien étroit avec les usages des espaces étudiés et ce, au regard des activités anthropiques passées et actuelles au droit des sites (activités industrielles, remaniements, apports et altération de matériaux, pratiques culturales...) et/ou de la proximité actuelle ou passée de potentielles sources de contamination (industries, infrastructures de transport, chauffage urbain...) |
Auteurs : Waterlot Christophe; Pruvot Christelle; Bidar Géraldine; Fritsch Clémentine; De-Vaufleury Annette; Scheifler Renaud; Douay Francis Prediction of extractable Cd, Pb and Zn in contaminated woody habitat soils using a change point detection method Pedosphere, 26(3), pp. 282-2981 @article{Waterlot2016b, title = {Prediction of extractable Cd, Pb and Zn in contaminated woody habitat soils using a change point detection method}, author = {Christophe Waterlot and Christelle Pruvot and Géraldine Bidar and Clémentine Fritsch and Annette De-Vaufleury and Renaud Scheifler and Francis Douay}, year = {2016}, date = {2016-01-01}, journal = {Pedosphere}, volume = {26}, number = {3}, pages = {282-298}, abstract = {Accumulation of heavy metals in soils poses a potential risk to plant production, which is related to availability of the metals in soil. The phytoavailability of metals is usually evaluated using extracting solutions such as salts, acids or chelates. The purpose of this study was to identify the most significant soil parameters that can be used to predict the concentrations of acetic and citric acid-extractable cadmium (Cd), lead (Pb) and zinc (Zn) in contaminated woody habitat topsoils. Multiple linear regression models were established using two analysis strategies and three sets of variables based on a dataset of 260 soil samples. The performance of these models was evaluated using statistical parameters. Cation exchange capacity, CaCO3, organic matter, assimilated P, free Al oxide, sand and the total metal concentrations appeared to be the main soil parameters governing the solubility of Cd, Pb and Zn in acetic and citric acid solutions. The results strongly suggest that the metal solubility in extracting solutions is extractable concentration-dependent since models were overall improved by incorporating a change point. This change point detection method was a powerful tool for predicting extractable Cd, Pb and Zn. Suitable predictions of extractable Cd, Pb and Zn concentrations were obtained, with correlation coefficient (adjusted r) ranging from 0.80 to 0.99, given the high complexity of the woody habitat soils studied. Therefore, the predictive models can constitute a decision-making support tool for managing phytoremediation of contaminated soils, making recommendations to control the potential bioavailability of metals. The relationships between acetic and/or citric acid-extractable concentrations and the concentrations of metals into the aboveground parts of plants need to be predicted, in order to make their temporal monitoring easier.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Accumulation of heavy metals in soils poses a potential risk to plant production, which is related to availability of the metals in soil. The phytoavailability of metals is usually evaluated using extracting solutions such as salts, acids or chelates. The purpose of this study was to identify the most significant soil parameters that can be used to predict the concentrations of acetic and citric acid-extractable cadmium (Cd), lead (Pb) and zinc (Zn) in contaminated woody habitat topsoils. Multiple linear regression models were established using two analysis strategies and three sets of variables based on a dataset of 260 soil samples. The performance of these models was evaluated using statistical parameters. Cation exchange capacity, CaCO3, organic matter, assimilated P, free Al oxide, sand and the total metal concentrations appeared to be the main soil parameters governing the solubility of Cd, Pb and Zn in acetic and citric acid solutions. The results strongly suggest that the metal solubility in extracting solutions is extractable concentration-dependent since models were overall improved by incorporating a change point. This change point detection method was a powerful tool for predicting extractable Cd, Pb and Zn. Suitable predictions of extractable Cd, Pb and Zn concentrations were obtained, with correlation coefficient (adjusted r) ranging from 0.80 to 0.99, given the high complexity of the woody habitat soils studied. Therefore, the predictive models can constitute a decision-making support tool for managing phytoremediation of contaminated soils, making recommendations to control the potential bioavailability of metals. The relationships between acetic and/or citric acid-extractable concentrations and the concentrations of metals into the aboveground parts of plants need to be predicted, in order to make their temporal monitoring easier. |
Auteurs : Masson François-Xavier; Lefer Henri-Bertrand; Boulemia Cherif; Naji Hassane 49th Int. Conference on Water Management Modeling (ICWMM), 24 - 25 February 2016, Toronto, Canada @conference{Masson2016, title = {Hydraulic characterization of porous materials using a rainfall simulator to model flows in natural and artificial non-saturated materials}, author = {François-Xavier Masson and Henri-Bertrand Lefer and Cherif Boulemia and Hassane Naji}, url = {http://www.icwmm.org/}, year = {2016}, date = {2016-01-01}, booktitle = {49th Int. Conference on Water Management Modeling (ICWMM), 24 - 25 February 2016, Toronto, Canada}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Nsanganwimana Florien; Waterlot Christophe; Louvel Brice; Pourrut Bertrand; Douay Francis Metal, nutrient and biomass accumulation during the growing cycle of Miscanthus established on metal-contaminated soils Journal of Plant Nutrition and Soil Science, 179(2), pp. 257-2691 @article{Nsanganwimana2016, title = {Metal, nutrient and biomass accumulation during the growing cycle of Miscanthus established on metal-contaminated soils}, author = {Florien Nsanganwimana and Christophe Waterlot and Brice Louvel and Bertrand Pourrut and Francis Douay}, year = {2016}, date = {2016-01-01}, journal = {Journal of Plant Nutrition and Soil Science}, volume = {179}, number = {2}, pages = {257-269}, abstract = {The energy crop miscanthus presents high potentials for phytomanagement. its shoot yield and nutrient accumulation has been extensively characterized in uncontaminated agricultural soils, while very little is known for metal-contaminated conditions. this study aimed at assessing potential differences in dry matter and metal and nutrient accumulation of the standing aerial biomass in miscanthus (m. x giganteus) growing in situ on agricultural plots presenting different soil cd, pb, and zn concentrations. plant samplings were conducted monthly along the growing period from may to december. cadmium, pb, zn, and the concentrations of the nutrients n, p, k, ca, mg, and na were determined in leaves and stems separately. during the growing phase, the maximum dry matter was reached in early in autumn. whatever the organ, cd and zn concentrations were higher on contaminated than on uncontaminated plots. during summer and autumn, zn and pb concentrations were higher in leaves than in stems whereas cd concentrations did not significantly differ between the organs. concentrations of n, p, k, and mg decreased across the study period whereas those of ca and na increased. overall, metal and nutrient concentrations depended on plant organ and its development stage. the dry matter and nutrient accumulation patterns were not different between contaminated and uncontaminated plots. the significance of these findings is discussed in light of best phytomanagement practices and potential uses of miscanthus biomass.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The energy crop miscanthus presents high potentials for phytomanagement. its shoot yield and nutrient accumulation has been extensively characterized in uncontaminated agricultural soils, while very little is known for metal-contaminated conditions. this study aimed at assessing potential differences in dry matter and metal and nutrient accumulation of the standing aerial biomass in miscanthus (m. x giganteus) growing in situ on agricultural plots presenting different soil cd, pb, and zn concentrations. plant samplings were conducted monthly along the growing period from may to december. cadmium, pb, zn, and the concentrations of the nutrients n, p, k, ca, mg, and na were determined in leaves and stems separately. during the growing phase, the maximum dry matter was reached in early in autumn. whatever the organ, cd and zn concentrations were higher on contaminated than on uncontaminated plots. during summer and autumn, zn and pb concentrations were higher in leaves than in stems whereas cd concentrations did not significantly differ between the organs. concentrations of n, p, k, and mg decreased across the study period whereas those of ca and na increased. overall, metal and nutrient concentrations depended on plant organ and its development stage. the dry matter and nutrient accumulation patterns were not different between contaminated and uncontaminated plots. the significance of these findings is discussed in light of best phytomanagement practices and potential uses of miscanthus biomass. |
Auteurs : Zebracki Mathilde; Alary Claire; Lefèvre Irène; Nan-Hammade Vasilica; Evrard Olivier; Bonté Philippe Quantifying the resuspension of sediment and associated metallic contaminants with fallout radionuclide measurements in a channelized river draining an industrial catchment Journal of Soils and Sediments, 16(1), pp. 294-3081 @article{Zebracki2016, title = {Quantifying the resuspension of sediment and associated metallic contaminants with fallout radionuclide measurements in a channelized river draining an industrial catchment}, author = {Mathilde Zebracki and Claire Alary and Irène Lefèvre and Vasilica Nan-Hammade and Olivier Evrard and Philippe Bonté}, year = {2016}, date = {2016-01-01}, journal = {Journal of Soils and Sediments}, volume = {16}, number = {1}, pages = {294-308}, abstract = {Purpose Contamination of river sediment reaches problematic levels in industrialised regions. This study investigates the relevance of using beryllium-7 (7Be), a short-lived environmental radionuclide (53 days half-life), for quantifying the deposition and resuspension of sediment and associated metallic contaminants in a heavily polluted channelized river of Northern France (The Lower Scarpe River). Materials and methods Activities in 7Be were measured in bed and suspended sediments collected each month over a hydrological year. Suspended sediments were analysed for metal contents (Pb, Zn, Cd, Cu). The determination of short-term sediment dynamics is based on the variation of total 7Be inventory between two successive samplings. Total inventory of 7Be consists of two components, i.e., the residual inventory and the new inventory. Results and discussion Inventories of 7Be in sediment varied from 1 to 135 mBq cm−2. Observed spatial and temporal variations reflected the dynamic behaviour of sediment in the studied channel section. The succession of sediment deposition and resuspension periods was demonstrated during the study, with maximum deposition and erosion rates of 0.3 ± 0.2 and −0.46 ± 0.05 g cm−2 month−1, respectively. A sediment resuspension rate of 0.06 g cm−2 month−1 supplied to the water column a flux of 12, 13, 23 and 145 μg cm−2 month−1 of Cd, Cu, Pb and Zn, respectively. During this 15-month study, 28 to 50 % of Pb that was deposited in the riverbed sediment was resuspended, thereby contributing to the (short term) degradation of water quality. Conclusions The present work provides a useful tool for examining the role of sediment as a sink or source of contamination for the water column. It produces knowledge of how sediment processes affect the fate and the transport of contaminants and the implications for future downstream fluxes}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } Purpose Contamination of river sediment reaches problematic levels in industrialised regions. This study investigates the relevance of using beryllium-7 (7Be), a short-lived environmental radionuclide (53 days half-life), for quantifying the deposition and resuspension of sediment and associated metallic contaminants in a heavily polluted channelized river of Northern France (The Lower Scarpe River). Materials and methods Activities in 7Be were measured in bed and suspended sediments collected each month over a hydrological year. Suspended sediments were analysed for metal contents (Pb, Zn, Cd, Cu). The determination of short-term sediment dynamics is based on the variation of total 7Be inventory between two successive samplings. Total inventory of 7Be consists of two components, i.e., the residual inventory and the new inventory. Results and discussion Inventories of 7Be in sediment varied from 1 to 135 mBq cm−2. Observed spatial and temporal variations reflected the dynamic behaviour of sediment in the studied channel section. The succession of sediment deposition and resuspension periods was demonstrated during the study, with maximum deposition and erosion rates of 0.3 ± 0.2 and −0.46 ± 0.05 g cm−2 month−1, respectively. A sediment resuspension rate of 0.06 g cm−2 month−1 supplied to the water column a flux of 12, 13, 23 and 145 μg cm−2 month−1 of Cd, Cu, Pb and Zn, respectively. During this 15-month study, 28 to 50 % of Pb that was deposited in the riverbed sediment was resuspended, thereby contributing to the (short term) degradation of water quality. Conclusions The present work provides a useful tool for examining the role of sediment as a sink or source of contamination for the water column. It produces knowledge of how sediment processes affect the fate and the transport of contaminants and the implications for future downstream fluxes |
Auteurs : Douay Francis; Pelfrêne Aurélie Etat des connaissances sur les sols, usages et productions potagères dans les jardins français Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux @conference{Douay2016, title = {Etat des connaissances sur les sols, usages et productions potagères dans les jardins français}, author = {Francis Douay and Aurélie Pelfrêne}, year = {2016}, date = {2016-01-01}, booktitle = {Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Douay Francis; Pelfrêne Aurélie Retour d’expérience sur la problématique des jardins affectés massivement par les activités passées de Metaleurop Nord: Projet REPJAR Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux @conference{Douay2016a, title = {Retour d’expérience sur la problématique des jardins affectés massivement par les activités passées de Metaleurop Nord: Projet REPJAR}, author = {Francis Douay and Aurélie Pelfrêne}, year = {2016}, date = {2016-01-01}, booktitle = {Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Patault Edouard; Alary Claire; Franke Christine; Gauthier Arnaud; Abriak Nor-Edine La maîtrise du ruissellement et de l’érosion dans le bassin versant de la Canche (Région Hauts de France) Colloque Aquacity. Session : L’eau, agent d’érosion et de transport dans un bassin versant : Quelles incidences sur la ges-tion du territoire ? Quelles connaissances à apporter ?, 15-16 Juin 2016, Lille @conference{Patault2016, title = {La maîtrise du ruissellement et de l’érosion dans le bassin versant de la Canche (Région Hauts de France)}, author = {Edouard Patault and Claire Alary and Christine Franke and Arnaud Gauthier and Nor-Edine Abriak}, year = {2016}, date = {2016-01-01}, booktitle = {Colloque Aquacity. Session : L’eau, agent d’érosion et de transport dans un bassin versant : Quelles incidences sur la ges-tion du territoire ? Quelles connaissances à apporter ?, 15-16 Juin 2016, Lille}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Patault Edouard; Alary Claire; Franke Christine; Gauthier Arnaud; Abriak Nor-Edine Source tracing of fluvial suspended sediments by magnetic and geochemical particle characterization: example of the Canche watershed (Nord-Pas-de-Calais, France) European Geosciences Union General Assembly 2016, 17-22 April 2016, Vienna (Autriche) @conference{Patault2016a, title = {Source tracing of fluvial suspended sediments by magnetic and geochemical particle characterization: example of the Canche watershed (Nord-Pas-de-Calais, France)}, author = {Edouard Patault and Claire Alary and Christine Franke and Arnaud Gauthier and Nor-Edine Abriak}, year = {2016}, date = {2016-01-01}, booktitle = {European Geosciences Union General Assembly 2016, 17-22 April 2016, Vienna (Autriche)}, abstract = {In france, erosion by water run-off is estimated to 1.5 t ha-1yr-1 and can exceed 10 t ha-1yr-1 in large growing areas, such as the north of france (nord-pas-de-calais). in this region, the canche watershed (1294 km2) sustains heavy loss of fertile soils. the land use is mainly dominated by arable lands (80%) and in 2013, 104 kt of suspended sediment transited to the estuary. as demonstrated in literature, agricultural soil erosion leads to the gradual disappearance and depletion of fertile soil, which constitute a non-renewable resource at human time scale. additionally, water erosion can significantly damage the aquatic habitat and can be responsible for the input of nutrients, bacteria, pesticides, heavy metals and radionuclides into surface waters. conscious of these effects, many programs have emerged in the nord-pas-de-calais to reduce erosion. this study presents a combination of environmental magnetic proxy parameters and geochemical analyses on sediments and suspended particulate matter. the aim is to develop effective tools to trace erosion by water run-off and quantify this process. in order to identify the respective sediment sources in the canche watershed, sediment trap samples of suspended particulate matter were recovered at key positions along the canche watershed. the preliminary results show that magnetic concentration (mrs) shows typical values for the agricultural soils in the region, but these variations in magnetic concentrations and total irons concentrations are not always correlated, which may be explained by the iron speciation. in calculating the so-called s-ratio for each sample we can distinguish changes in magneto-mineralogy (and thus iron speciation) from magnetite-dominated assemblages in the mainstream canche (naturel background signal) to high-coercivity-dominated assemblages in the tributaries, typical for soil erosion material rich in hematite/goethite. in combination with the element concentrations from icp analyses, this proxy parameter may give valuable insight into the tracing of the suspended sediment sources. in perspective, the seasonal variability and the discharge in the canche watershed have to be taken into account.}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } In france, erosion by water run-off is estimated to 1.5 t ha-1yr-1 and can exceed 10 t ha-1yr-1 in large growing areas, such as the north of france (nord-pas-de-calais). in this region, the canche watershed (1294 km2) sustains heavy loss of fertile soils. the land use is mainly dominated by arable lands (80%) and in 2013, 104 kt of suspended sediment transited to the estuary. as demonstrated in literature, agricultural soil erosion leads to the gradual disappearance and depletion of fertile soil, which constitute a non-renewable resource at human time scale. additionally, water erosion can significantly damage the aquatic habitat and can be responsible for the input of nutrients, bacteria, pesticides, heavy metals and radionuclides into surface waters. conscious of these effects, many programs have emerged in the nord-pas-de-calais to reduce erosion. this study presents a combination of environmental magnetic proxy parameters and geochemical analyses on sediments and suspended particulate matter. the aim is to develop effective tools to trace erosion by water run-off and quantify this process. in order to identify the respective sediment sources in the canche watershed, sediment trap samples of suspended particulate matter were recovered at key positions along the canche watershed. the preliminary results show that magnetic concentration (mrs) shows typical values for the agricultural soils in the region, but these variations in magnetic concentrations and total irons concentrations are not always correlated, which may be explained by the iron speciation. in calculating the so-called s-ratio for each sample we can distinguish changes in magneto-mineralogy (and thus iron speciation) from magnetite-dominated assemblages in the mainstream canche (naturel background signal) to high-coercivity-dominated assemblages in the tributaries, typical for soil erosion material rich in hematite/goethite. in combination with the element concentrations from icp analyses, this proxy parameter may give valuable insight into the tracing of the suspended sediment sources. in perspective, the seasonal variability and the discharge in the canche watershed have to be taken into account. |
Auteurs : Patault Edouard; Alary Claire; Franke Christine; Gauthier Arnaud; Abriak Nor-Edine Suspended sediment transport and sediment fingerprinting in the watershed of the Canche (Nord-Pas-de-Calais, France): a multi-parameter approach I2SM, 10-13 Juillet 2016, Montreal (Canada) @conference{Patault2016b, title = {Suspended sediment transport and sediment fingerprinting in the watershed of the Canche (Nord-Pas-de-Calais, France): a multi-parameter approach}, author = {Edouard Patault and Claire Alary and Christine Franke and Arnaud Gauthier and Nor-Edine Abriak}, year = {2016}, date = {2016-01-01}, booktitle = {I2SM, 10-13 Juillet 2016, Montreal (Canada)}, note = {ACTI}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Pelfrêne Aurélie Bioaccessibilité des polluants métalliques - Apport à l’évaluation de l’exposition des populations vivant sur des sites contaminés HDR Université Lille 1, 224pp, @phdthesis{Pelfrene2016c, title = {Bioaccessibilité des polluants métalliques - Apport à l’évaluation de l’exposition des populations vivant sur des sites contaminés}, author = {Aurélie Pelfrêne}, year = {2016}, date = {2016-01-01}, school = {HDR Université Lille 1, 224pp}, abstract = {Dans les régions industrialisées, les concentrations en polluants métalliques des différents compartiments environnementaux, et notamment des sols, se sont accrues depuis de nombreuses années, au point parfois d’affecter grandement leur qualité et leurs fonctions. cet enrichissement en métaux dans les sols est très variable dans le temps et dans l’espace et peut présenter des dangers environnementaux mais également, sanitaires pour les populations, notamment celles vivant dans des environnements industriels ou ayant été affectés par le passé par des émissions atmosphériques. parmi les enjeux de la gestion des sites et sols contaminés, l’évaluation de l’exposition des populations aux polluants métalliques est une question scientifique majeure. la présence de métaux dans les sols entraîne des expositions directes, en lien avec l’ingestion et l’inhalation de particules de terre et de poussières, ou indirectes, en lien avec la consommation de denrées autoproduites (légumes ou fruits dans les jardins potagers). la plupart des diagnostics de sites ont pour objectif de mesurer les concentrations totales de polluants dans le sol, les poussières ou les végétaux. il est alors implicitement considéré que la totalité du polluant est à même de pénétrer dans l’organisme et d’y exercer un effet toxique. or, des études ont montré que la concentration totale d’un élément présent dans une matrice donnée n’est pas un bon indicateur du potentiel d’exposition de la population. en effet, seule la fraction biodisponible du polluant, représentative de la fraction absorbée par un organisme, est réellement assimilée par l’organisme et est susceptible d’induire un effet toxique. or, la biodisponibilité d’un élément peut considérablement varier en fonction de la nature de la matrice (terre, poussières, eau, aliment…). dans une démarche d’évaluation plus pertinente du risque sanitaire, disposer d’information sur la biodisponibilité orale des polluants métalliques est un atout indéniable. ainsi, la biodisponibilité des polluants dans les différentes matrices est un paramètre clef pour l’estimation de l’exposition aux polluants. l’accès à des méthodes validées pour estimer cette biodisponibilité permettrait de proposer des préconisations plus réalistes, de réduire potentiellement le nombre de sites considérés comme dangereux, et donc, de réduire les coûts de remédiation de sites, tout en restant à un même niveau de protection sanitaire. la biodisponibilité des polluants, particulièrement en lien avec l’ingestion de particules de terre et de productions contaminées, est souvent estimée par la mesure de la bioaccessibilité orale (i.e. la fraction du contaminant extraite par les fluides digestifs) au moyen de tests in vitro. en dépit de nombreux travaux entrepris pour mesurer la bioaccessibilité, celle-ci n’est pas encore intégrée comme un outil d’évaluation des risques et de gestion des sites. au regard de ce constat, il apparaît indispensable de mieux intégrer la notion de biodisponibilité dans la gestion des sols contaminés. la question est toutefois de s’assurer qu’une telle intégration permettrait d’accroître la pertinence des calculs d’exposition aux polluants et ainsi, de gérer aux mieux la problématique des sols contaminés. dans cet objectif, les différents aspects de la problématique ont été examinés dans le présent mémoire en se basant sur des illustrations issues de mes recherches qui ont porté sur l’étude de l’exposition des populations aux polluants métalliques en prenant en compte les voies d’apport suivantes : l’ingestion de particules de terre et de poussières, la consommation de denrées et l’inhalation de poussières. les travaux que j’ai menés depuis 2008, essentiellement sur le site atelier metaleurop, ont contribué à évaluer la disponibilité environnementale puis toxicologique et ont permis d’alimenter une réflexion plus large autour de la pertinence actuelle des méthodes utilisées pour l’évaluation et la gestion des sols pollués. cette recherche pluridisciplinaire s’est faite dans le cadre de plusieurs partenariats à l’échelle nationale mais aussi internationale, notamment en tant que membre actif d’un groupe de recherche sur la bioaccessibilité (barge). mon projet de recherche a pour objectif de renforcer le positionnement du laboratoire sur la thématique liée à l’évaluation des risques et à la gestion sanitaire des sites contaminés, en s’intéressant notamment à d’autres polluants (en particulier organiques), à d’autres matrices telles que les sédiments et ce, en proposant de nouveaux outils chimiques et géochimiques.}, note = {TH HDR}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {phdthesis} } Dans les régions industrialisées, les concentrations en polluants métalliques des différents compartiments environnementaux, et notamment des sols, se sont accrues depuis de nombreuses années, au point parfois d’affecter grandement leur qualité et leurs fonctions. cet enrichissement en métaux dans les sols est très variable dans le temps et dans l’espace et peut présenter des dangers environnementaux mais également, sanitaires pour les populations, notamment celles vivant dans des environnements industriels ou ayant été affectés par le passé par des émissions atmosphériques. parmi les enjeux de la gestion des sites et sols contaminés, l’évaluation de l’exposition des populations aux polluants métalliques est une question scientifique majeure. la présence de métaux dans les sols entraîne des expositions directes, en lien avec l’ingestion et l’inhalation de particules de terre et de poussières, ou indirectes, en lien avec la consommation de denrées autoproduites (légumes ou fruits dans les jardins potagers). la plupart des diagnostics de sites ont pour objectif de mesurer les concentrations totales de polluants dans le sol, les poussières ou les végétaux. il est alors implicitement considéré que la totalité du polluant est à même de pénétrer dans l’organisme et d’y exercer un effet toxique. or, des études ont montré que la concentration totale d’un élément présent dans une matrice donnée n’est pas un bon indicateur du potentiel d’exposition de la population. en effet, seule la fraction biodisponible du polluant, représentative de la fraction absorbée par un organisme, est réellement assimilée par l’organisme et est susceptible d’induire un effet toxique. or, la biodisponibilité d’un élément peut considérablement varier en fonction de la nature de la matrice (terre, poussières, eau, aliment…). dans une démarche d’évaluation plus pertinente du risque sanitaire, disposer d’information sur la biodisponibilité orale des polluants métalliques est un atout indéniable. ainsi, la biodisponibilité des polluants dans les différentes matrices est un paramètre clef pour l’estimation de l’exposition aux polluants. l’accès à des méthodes validées pour estimer cette biodisponibilité permettrait de proposer des préconisations plus réalistes, de réduire potentiellement le nombre de sites considérés comme dangereux, et donc, de réduire les coûts de remédiation de sites, tout en restant à un même niveau de protection sanitaire. la biodisponibilité des polluants, particulièrement en lien avec l’ingestion de particules de terre et de productions contaminées, est souvent estimée par la mesure de la bioaccessibilité orale (i.e. la fraction du contaminant extraite par les fluides digestifs) au moyen de tests in vitro. en dépit de nombreux travaux entrepris pour mesurer la bioaccessibilité, celle-ci n’est pas encore intégrée comme un outil d’évaluation des risques et de gestion des sites. au regard de ce constat, il apparaît indispensable de mieux intégrer la notion de biodisponibilité dans la gestion des sols contaminés. la question est toutefois de s’assurer qu’une telle intégration permettrait d’accroître la pertinence des calculs d’exposition aux polluants et ainsi, de gérer aux mieux la problématique des sols contaminés. dans cet objectif, les différents aspects de la problématique ont été examinés dans le présent mémoire en se basant sur des illustrations issues de mes recherches qui ont porté sur l’étude de l’exposition des populations aux polluants métalliques en prenant en compte les voies d’apport suivantes : l’ingestion de particules de terre et de poussières, la consommation de denrées et l’inhalation de poussières. les travaux que j’ai menés depuis 2008, essentiellement sur le site atelier metaleurop, ont contribué à évaluer la disponibilité environnementale puis toxicologique et ont permis d’alimenter une réflexion plus large autour de la pertinence actuelle des méthodes utilisées pour l’évaluation et la gestion des sols pollués. cette recherche pluridisciplinaire s’est faite dans le cadre de plusieurs partenariats à l’échelle nationale mais aussi internationale, notamment en tant que membre actif d’un groupe de recherche sur la bioaccessibilité (barge). mon projet de recherche a pour objectif de renforcer le positionnement du laboratoire sur la thématique liée à l’évaluation des risques et à la gestion sanitaire des sites contaminés, en s’intéressant notamment à d’autres polluants (en particulier organiques), à d’autres matrices telles que les sédiments et ce, en proposant de nouveaux outils chimiques et géochimiques. |
Auteurs : Yehya Alissar; Naji Hassane Towards the numerical investigation of convective solid/liquid phase change in porous media via a new gray lattice Boltzmann model 12th Int. Conference on Heat Transfer, Fluid Mechanics and Thermodynamics (HEFAT 2016), 11 - 13 July 2016, Malaga, Spain(paper # 1570233925), @conference{Yehya2016, title = {Towards the numerical investigation of convective solid/liquid phase change in porous media via a new gray lattice Boltzmann model}, author = {Alissar Yehya and Hassane Naji}, year = {2016}, date = {2016-01-01}, booktitle = {12th Int. Conference on Heat Transfer, Fluid Mechanics and Thermodynamics (HEFAT 2016), 11 - 13 July 2016, Malaga, Spain}, number = {paper # 1570233925}, note = {ACTI}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Pelfrêne Aurélie; Douay Francis De l’acquisition de données environnementales et sociales à l’évaluation de l’exposition des jardiniers Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux @conference{Pelfrene2016b, title = {De l’acquisition de données environnementales et sociales à l’évaluation de l’exposition des jardiniers}, author = {Aurélie Pelfrêne and Francis Douay}, year = {2016}, date = {2016-01-01}, booktitle = {Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux}, note = {COM}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Vololonirina Oly; Perrin Bernard Inquiries into the measurement of vapour permeability of permeable materials Construction and Building Materials, 102, pp. 338 - 3481ISSN: 0950-0618 @article{Vololonirina2016, title = {Inquiries into the measurement of vapour permeability of permeable materials}, author = {Oly Vololonirina and Bernard Perrin}, url = {https://www-sciencedirect-com.bibliopam.univ-catholille.fr/science/article/pii/S0950061815305535}, doi = {https://dx-doi-org.bibliopam.univ-catholille.fr/10.1016/j.conbuildmat.2015.10.126}, issn = {0950-0618}, year = {2016}, date = {2016-01-01}, journal = {Construction and Building Materials}, volume = {102}, pages = {338 - 348}, note = {ACL}, keywords = {Axe 3, ER5}, pubstate = {published}, tppubtype = {article} } |
Auteurs : Pelfrêne Aurélie; Grard Olivier; Heyman Christophe; Douay Francis Assessment of oral and lung bioaccessibilities of metals from smelter-impacted dust The 3rd International Symposium on Environment and Health, 14-20 August 2016, Galway (Ireland) @conference{Pelfrene2016a, title = {Assessment of oral and lung bioaccessibilities of metals from smelter-impacted dust}, author = {Aurélie Pelfrêne and Olivier Grard and Christophe Heyman and Francis Douay}, year = {2016}, date = {2016-01-01}, booktitle = {The 3rd International Symposium on Environment and Health, 14-20 August 2016, Galway (Ireland)}, note = {AFF}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {conference} } |
Auteurs : Eglinger Aurélien; Vanderhaeghe Olivier; André-Mayer Anne-Sylvie; Goncalves Philippe; Zeh Armin; Durand Cyril; Deloule Etienne Tectono-metamorphic evolution of the internal zone of the Pan-African Lufilian orogenic belt (Zambia): Implications for crustal reworking and syn-orogenic uranium mineralizations Lithos, 240-243, pp. 167-1881 @article{Eglinger2016, title = {Tectono-metamorphic evolution of the internal zone of the Pan-African Lufilian orogenic belt (Zambia): Implications for crustal reworking and syn-orogenic uranium mineralizations}, author = {Aurélien Eglinger and Olivier Vanderhaeghe and Anne-Sylvie André-Mayer and Philippe Goncalves and Armin Zeh and Cyril Durand and Etienne Deloule}, year = {2016}, date = {2016-01-01}, journal = {Lithos}, volume = {240-243}, pages = {167-188}, abstract = {The internal zone of the pan-african lufilian orogenic belt (zambia) hosts a dozen uranium occurrences mostly located within kyanite micaschists in a shear zone marking the contact between metasedimentary rocks attributed to the katanga neoproterozoic sedimentary sequence and migmatites coring domes developed dominantly at the expense of the pre-neoproterozoic basement. the p–t–t–d paths reconstructed for these rocks combining field observations, microstructural analysis, metamorphic petrology and thermobarometry and geochronology indicate that they have recorded burial and exhumation during the pan-african orogeny. both units of the katanga metasedimentary sequence and pre-katanga migmatitic basement have underwent minimum peak p–t conditions of ~ 9–11 kbar and ~ 640–660 °c, dated at ca. 530 ma by garnet-whole rock lu–hf isochrons. this suggests that this entire continental segment has been buried up to a depth of 40–50 km with geothermal gradients of 15–20 °c.km− 1 during the pan-african orogeny and the formation of the west gondwana supercontinent. syn-orogenic exhumation of the partially molten root of the lufilian belt is attested by isothermal decompression under p–t conditions of ~ 6–8 kbar at ca. 530–500 ma, witnessing an increase of the geothermal gradients to 25–30 °c·km− 1. uranium mineralizations that consist of uraninite and brannerite took place at temperatures ranging from ~ 600 to 700 °c, and have been dated at ca. 540–530 ma by u–pb ages on uraninite. the main uranium deposition thus occurred at the transition from the syn-orogenic burial to the syn-orogenic exhumation stages and has been then partially transposed and locally remobilized during the post-orogenic exhumation accommodated by activation of low-angle extensional detachment.}, note = {ACL}, keywords = {Axe 2, ER4}, pubstate = {published}, tppubtype = {article} } The internal zone of the pan-african lufilian orogenic belt (zambia) hosts a dozen uranium occurrences mostly located within kyanite micaschists in a shear zone marking the contact between metasedimentary rocks attributed to the katanga neoproterozoic sedimentary sequence and migmatites coring domes developed dominantly at the expense of the pre-neoproterozoic basement. the p–t–t–d paths reconstructed for these rocks combining field observations, microstructural analysis, metamorphic petrology and thermobarometry and geochronology indicate that they have recorded burial and exhumation during the pan-african orogeny. both units of the katanga metasedimentary sequence and pre-katanga migmatitic basement have underwent minimum peak p–t conditions of ~ 9–11 kbar and ~ 640–660 °c, dated at ca. 530 ma by garnet-whole rock lu–hf isochrons. this suggests that this entire continental segment has been buried up to a depth of 40–50 km with geothermal gradients of 15–20 °c.km− 1 during the pan-african orogeny and the formation of the west gondwana supercontinent. syn-orogenic exhumation of the partially molten root of the lufilian belt is attested by isothermal decompression under p–t conditions of ~ 6–8 kbar at ca. 530–500 ma, witnessing an increase of the geothermal gradients to 25–30 °c·km− 1. uranium mineralizations that consist of uraninite and brannerite took place at temperatures ranging from ~ 600 to 700 °c, and have been dated at ca. 540–530 ma by u–pb ages on uraninite. the main uranium deposition thus occurred at the transition from the syn-orogenic burial to the syn-orogenic exhumation stages and has been then partially transposed and locally remobilized during the post-orogenic exhumation accommodated by activation of low-angle extensional detachment. |
Auteurs : Pelfrêne Aurélie; Grard Olivier; Heyman Christophe; Triquet Judith; Douay Francis Comment continuer à consommer ses fruits et légumes cultivés dans un contexte contaminé? Retour d’expérience. Rencontres Internationales de Liessies « Les sols nourriciers », 22 septembre 2016, Liessies @conference{Pelfrene2016bb, title = {Comment continuer à consommer ses fruits et légumes cultivés dans un contexte contaminé?}, author = {Aurélie Pelfrêne and Olivier Grard and Christophe Heyman and Judith Triquet and Francis Douay}, year = {2016}, date = {2016-01-01}, booktitle = {Retour d’expérience. Rencontres Internationales de Liessies « Les sols nourriciers », 22 septembre 2016, Liessies}, note = {ACTN}, keywords = {Axe 2, ER4}, |
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2017Journal Article Impact of plants occultation on energy balance: Experimental study Energy and Buildings, |
2017Conférence Mise en synergie des réseaux : évaluer la contribution des emprises des infrastrucutres linéaires de RTE et de SNCF réseau aux continuités écologiques Séminaire ITTECOP, 19-20 octobre 2017, Paris |
2017Inproceedings 2017 21st International Conference on System Theory, Control and Computing (ICSTCC)IEEE, |
2017Conférence “Magnetic fingerprinting” of fluvial suspended particles in the context of fertile soil erosion: example of the Canche River watershed (Nord-Pas-de-Calais, France Colloque ICRM 2017 (International Conference on Rock Magnetism), 10-14 juillet 2017, Utrecht (Belgique) |
2017Conférence Tracing sources of suspended sediments in fluvial systems by magnetic and geochemical particle characterization PMAG2017 : Magnetisme de la Biosphère aux Planètes telluriques, 17-19 octobre 2017, Toulouse |
2017Journal Article A large-scale experimentation of the smart sewage system Water and Environment Journal, 31(4), pp. 515-5211ISSN: 1747-6585 |
2017Journal Article Flood forecasting within urban drainage systems using NARX neural network Water Science and Technology, 76(9), pp. 2401-24121ISSN: 0273-1223 |
2017Journal Article Water Resources Management, 31(15), pp. 4821-48331ISSN: 0920-4741 |
2017Journal Article Numerical study of a composite Trombe solar wall integrating microencapsulated PCM Energy Procedia, 122(Supplement C), pp. 1009–10141ISSN: 1876-6102 |
2017Journal Article Storage of thermal solar energy Comptes Rendus Physique, 18(7–8), pp. 401–4141ISSN: 1631-0705 |
2017Journal Article Assessment of heavy metals in soil and terrestrial isopod Porcellio laevis in Tunisian industrialized areas Environmental Earth Sciences, 76, pp. 623-6361 |
2017Journal Article Mineralogical, crystallographic and redox features of the earliest stages of fluid alteration in CM chondrites Geochimica et Cosmochimica Acta, pp. 106-1221 |
2017Conférence Use of Miscanthus x giganteus to phytomanage large contaminated areas: lessons from Northern France IV International conference “Plant Ontogenesis in Natural and Transformed Environment, 4-6 October 2017, Lviv (Ukraine) |
2017Conférence Use of comet assay as an efficient biomarker for plant biomonitoring and phytomanagement of contaminated sites 3rd World Congress on New Technologies (NewTech'17). 6-8 June 2017, Rome (Italie) |
2017Conférence Development of a high-throughput multi-parameter biomarker set to evaluate plant species to manage contaminated areas 14th International Phytotechnologies Conference, 25-29 Septembre 2017, Montreal (Canada) |
2017Conférence Toward a new approach in drug design: from polluted soil an non hyper-accumulating plants to anti-inflammatory agent 4th French-Romanian Colloquium on Medicinal Chemistry, 5-7 October 2017, Iasi (Roumanie) |
2017Conférence Usages et qualité des sols: Gestion des sols contaminés par les activités humaines Sols convoités, sols en danger: comment les protéger? Terre de liens - ISA Lille, 8 Juin 2017, Lille |
2017PhD Thesis Intérêt d’un amendement organo-minéral pour remédier des sols de friches industrielles multicontaminés en milieu urbain Thèse de l’Université de Lille 1, 321pp, |
2017Conférence ETNA2 project: Silver ecotoxicology in terrestrial environments International Conference of Environmental Biotechnology, 12th December 2017, Czestochowa (Poland) |
2017Journal Article Determination of PAHs by ultra fast liquid chromatography using a coreshell technology – Application to their determination after using biochar as adsorbent Measurement, 106, pp. 137-1421 |
2017Conférence Silver and silver nanoparticles as a threat for terrestrial ecosystems The XXVI International Symposium “Molecular and Physiological Aspects of Regulatory Processes of the Organism, 16 September 2017, Kraków (Poland) |
2017Journal Article Value of biochars from Miscanthus x giganteus cultivated on contaminated soils to decrease the availability of metals in multicontaminated aqueous solutions Environmental Science and Pollution Research, 24(22), pp. 18204-182171 |
2017Technical Report Les phytotechnologies appliquées aux sites et sols pollués (nouveaux résultats de recherche et démonstration) ADEME |
2017Conférence Expression of rbcL gene in plants as a potential stress marker in phytoremediation of heavy metal contaminated soils The XXVI International Symposium “Molecular and Physiological Aspects of Regulatory Processes of the Organism, 16 September 2017, Kraków (Poland) |
2017Conférence Elimination of metallic pollutants from contaminated aqueous solution using different iron particles Journées Condorcet 2017, Institut Universitaire de Technologie A, Université de Lille, 8-9 juin 2017, Lille |
2017Conférence Expression of metallothioneins and phytochelatins in Lupinus luteus L. exposed to heavy metals and nanoparticles SETAC North America 38th Annual Meeting, 12-16 November 2017, Minneapolis |
2017Conférence Evaluation du vermicompostage appliqué aux boues d'épuration par la surveillance de la qualité du compost et des réponses immunitaires de trois espèces de vers de terre: Eisenia fetida, Eisenia andrei et Dendrobaena veneta Colloque 2017 de la Société Française d'Ecotoxicologie Fondamentale et Appliquée, 29-30 juin 2017, Lille. |
2017Conférence Processus de transfert des polluants dans les différents compartiments d’un bassin versant Journées des Doctorants. École Doctorale Géosciences, Ressources Naturelles et Environnement. MINES ParisTech, 19-20 avril 2017, Paris |
2017Journal Article Geochronological constraints on the trans-Hudsonian tectono-metamorphic evolution of the pre-Athabasca basement within the Wollaston-Mudjatik Transition Zone, Saskatchewan Precambrian Research, 301, pp. 152-1781 |
2017Journal Article Protective role of metallothionein during regeneration in Eisenia andrei exposed to cadmium Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology, 203, pp. 39-501 |
2017Journal Article Vermiremediation of polycyclic aromatic hydrocarbons and heavy metals in sewage sludge composting process Journal of Environmental Management, 187, pp. 347-3531 |
2017Conférence Mineralogy and fluid inclusions of amethyst veins, Auvergne, Central Massif France: Implication for hydrothermal évolution and genesis XXIVth European Current Research On Fluid Inclusions (ECROFI), 25-29 juin, Nancy |
2017Conférence GeDSeT, understanding sediment contamination and behaviour to facilitate its reuse and contribution to the circular economy of minerals 10th International SedNet conference. 14-17 June 2017, Genoa (Italie) |
2017Conférence Suivi des événements érosifs dans un bassin versant agricole. Site expérimental de la Pommeroye (Hauts de France) Journée connaissance au service de l'action - la qualité des milieux aquatiques. Lilliad Learning Center Innovation, Université de Lille 1, 3 octobre 2017, Villeneuve d’Ascq |
2017Journal Article Ferroquine, the next generation antimalarial drug, has antitumor activity Scientific Reports, 7, pp. online1 |
2017PhD Thesis Paleoenvironmental conditions and diagenetic evolution of the mishrif formation (Nasiriyah oil field, Iraq) Thèse de l’Université de Lille 1, 242pp, |
2017Journal Article The next three decades of the comet assay: a report of the 11th International Comet Assay Workshop Mutagenesis, 32(3), pp. 397-4081 |
2017Journal Article Nature of fly ash amendments differently influences oxidative stress alleviation in four forest tree species and metal trace element phytostabilization in aged contaminated soil: A long-term field experiment Ecotoxicology and Environmental Safety, 138, pp. 190-1981 |
2017PhD Thesis Interactions Sol-Plante dans un contexte de phytomanagement de sols pollués par des métaux: Application à Miscanthus x giganteus Thèse de l’Université de Lille 1, 200pp, |
2017Conférence Interest of Miscanthus x Giganteus in phytomanaging heavy metal contaminated soils 2nd World Congress on Civil, Structural, and Environmental Engineering (CSEE’17), 2-4 April 2017, Barcelona (Espagne) |
2017Journal Article Assessment of Miscanthus x giganteus capacity to restore the functionality of metal-contaminated soils: Ex situ experiment Applied Soil Ecology, 115, pp. 44-521 |
2017Conférence Fluid inclusions constraints on the origin of Ribeirão da Prata lead and zinc ore deposits (southern Brazil) XXIVth European Current Research On Fluid Inclusions (ECROFI), 25-29 Juin, Nancy |
2017Conférence Constraints on the evolution of the Itajaí-Perimbó shear zone, southern Brazil, provided by fluid inclusions XXIVth European Current Research On Fluid Inclusions (ECROFI), 25-29 juin, Nancy |
2017Journal Article Near-surface distribution of pollutants in coastal waters as assessed by novel polyethylene passive samplers Marine Pollution Bulletin, 119(1), pp. 92-1011 |
2017Conférence Studies on the potential of new biomolecules for the protection of plants in organic agriculture: PHYTOBIO and SMARTBIOCONTROL projects. - Etudes des potentialites de nouvelles biomolecules pour la protection des plantes en agriculture biologique les projets PHYTOBIO et SMARTBIOCONTROL 6ème conférence internationale sur les méthodes alternatives de protection des plantes, 21-23 mars 2017, Lille |
2017Journal Article Dredged marine sediments used as novel supply of filling materials for road construction Marine Georesources & …, 35(4), pp. 472-4801 |
2017Journal Article Journal of Materials …, 8(4), pp. 1350-13581 |
2017Journal Article Relationships between metal compartmentalization and biomarkers in earthworms exposed to field-contaminated soils Environmental Pollution, 224, pp. 185-1941 |
2017Conférence Agir sur la « Trame brune » pour favoriser la mobilité de la faune du sol Journée de lancement du programme CPER Climibio, 6 septembre 2017, Lille |
2017Conférence Les isopodes terrestres face au dérèglement climatique 6ème journée du groupe de travail « TEBIS » (Traits Ecologiques et Biologiques des organismes des Sols), 2-4 octobre 2017, Metz |
2017Journal Article Calibration and response of an agarose gel based passive sampler to record short pulses of aquatic organic pollutants Talanta, 165, pp. 1-81 |
2017Conférence Les isopodes terrestres face aux changements climatiques Journée de lancement du programme CPER Climibio, 6 septembre 2017, Lille |
2017Journal Article Assessing the transport of PAH in the surficial sediment layer by passive sampler approach Science of the Total Environment, 179, pp. 72-811 |
2017Conférence Efficacité de méthodes de phytomanagement sur la fonctionnalité de sols fortement contaminés par les métaux Société Française d'Ecotoxicologie Fondamentale et Appliquée, 29-30 juin 2017, Lille |
2017Journal Article Maturation of Xenopus laevis oocytes under cadmium and lead exposures: cell biology investigations Aquatic Toxicology, 193, pp. 105-1101 |
2017Conférence Xenopus oocyte responses after cadmium and lead exposures: a cell biology investigation SETAC, 7-11 May 2017, Brussels (Belgique) |
2017Book Guide d’utilisation des bases de données sol pour la production de cartes thématiques Réseau Mixte Technologique Sols & Territoires, 110 p, |
2017Conférence Soil environmental genotoxicity: past and actual tools, future needs International Conference of Environmental Biotechnology, 12 December 2017, Czestochowa (Poland) |
2017Conférence Intérêt de l'ovocyte de xénope en écotoxicologie Société Française d'Ecotoxicologie Fondamentale et Appliquée, 29-30 juin 2017, Lille |
2017Conférence Xenopus oocytes in environmental toxicology: a promising tool ? 18th International Symposium on Toxicity Assesment, 16- 21 July 2017, Limeira (Brazil) |
2017Journal Article Enhance the rheological and mechanical properties of clayey materials by adding starches Construction and Building Materials, 139, pp. 602 - 6101ISSN: 0950-0618 |
2017PhD Thesis Genetic consequences of colonization of a metal-polluted environment, population genetics and quantitative genetics approaches Thèse de l’Université de Lille 1, 198pp, |
2017Conférence A simple inverse method for monitoring the thermal characteristics of the limestone in an individual house International COnference on Materials ans Energy (ICOME 2017)Tianjin China |
2017Journal Article Int. J. Therm. Sci., 116, pp. 103 - 1171ISSN: 1290-0729 |
2017Journal Article Determination of the performance of vermicomposting process applied to sewage sludge by monitoring of the compost quality and immune responses in three earthworm species: Eisenia fetida, Eisenia andrei and Dendrobaena veneta Bioresource Technology, 241, pp. 103-1121 |
2017Journal Article A new view on iron-claystone interactions under hydrothermal conditions (90 °C) by monitoring in situ pH evolution and H2 generation Chemical Geology, 466, pp. 600-6071 |
2017Conférence Soil environmental genotoxicity: past and actual tools, future needs 18th International Symposium on Toxicity Assesment, 16- 21 July 2017, Limeira (Brazil) |
2017Inproceedings Performance énergétique de parois solaires et stockage de l'énergie par chaleur latente Actes du CIFQ 2017Saint Lô, |
2017Conférence EBENE : a new welfare assessment method co-built with stakeholders tested in free range laying hen 7th International Conference on the Assessment of Animal Welfare at Farm and Group level, 5-8 September 2017, Ede (Pays-Bas) |
2017Conférence EBENE : une nouvelle méthode d’évaluation du bien-être co-construite avec les différentes parties prenantes testée en élevage poules pondeuse plein air Colloque bien-être animal : de la théorie à la pratique, 12-14 décembre 2017, Rennes |
2017Journal Article Energy Procedia (ICOME 15 & ICOME 16), 139, pp. 710 - 7171ISSN: 1876-6102 |
2017Conférence High throughput biomarker set to evaluate carbon nanotube impact on plants International Conference on the Biogeochemistry of Trace Elements (ICOBTE), 16-20 July 2017, Zurich (Suisse) |
2017Conférence Soil formation from mining residues: example of weathering of spoil tips, Hauts-de-France region Goldschmidt Conference, 14-18 août 2017, Paris |
2017Journal Article Construction and Building Materials, 143, pp. 621 - 6321ISSN: 0950-0618 |
2017Conférence Silver nanoparticles in sewage sludge- a new threat? International Conference of Environmental Biotechnology. Ecole Polytechnique de Czestochowa, 12-13 Décember 2017 (Poland) |
2017Conférence Hygrothermal behaviour of a hemp concrete block, experimental and numerical results 2nd International Conference on Bio-based Building MaterialsClermont-Ferrand 2017 |
2017Journal Article Three-dimensional-printed membrane-type acoustic metamaterial for low frequency sound attenuation J. Acoust. Soc. Am., 141(EL538), |
2017Journal Article Journal of Building Engineering, 14(Supplement C), pp. 15 - 231ISSN: 2352-7102 |
2017Conférence The contribution of microscopy to chemical and ecotoxicological approaches in the environmental risk assessment of coal tar polluted soils CEMEPE & SECOTOX Conference, 25-30 June 2017, Thessaloniki (Greece) |
2017Conférence Non-Isothermal Phase Change Material in a Building Wall Under South Mediterranean Climate 10th International Conference on Computational Heat, Mass and Momentum Transfer (ICCHM2T 2017), Seoul, Korea May 28 - June 1, 2017. |
2017Journal Article Exploring novel phases of Cd-O system at ambient pressure Physics Letters A, (396), pp. 717�7221 |
2017Journal Article Wetting and nanodroplet contact angle of the clay 2:1 surface: The case of Na-montmorillonite (001) Applied Surface Science, (396), pp. 717�7221 |
2017Journal Article Beneficial reuse of Brest-Harbor (France)-dredged sediment as alternative material in road building: laboratory investigations Environmental Technology, 39(5), pp. 566-5801 |
2017Journal Article Improving mechanical properties of C-S-H from inserted carbon nanotubes, Journal of Physics and Chemistry of Solids, 105, pp. 72-801 |
2017Journal Article Relationships among site characteristics, taxonomical structure and functional trait distribution of arthropods in forest, urban and agricultural soils of Southern Italy Ecological Research, 32(4), pp. 511-5211 |
2017Conférence Simulation numérique du transport d'un aéro-contaminant en convection naturelle |
2017Conférence Numerical investigation of turbulent double-diffusive mixed convection in a slot ventilated enclosure with supply air flow ports 23ème Congrès Français de Mécanique 2017, Lille, France, 28 Août-01 septembre 2017. |
2017PhD Thesis Identification et mesures de biomarqueurs infra-individuels chez le palmier dattier (Phoenix dactylifera) lors d’une contamination métallique : prédiction des voies métaboliques et description des mécanismes de détoxication des métaux impliqués Thèse en co-tutelle Université de Sfax, Tunisie / Université de Lille 1, France, 368 pp, |
2017Journal Article Thermal behavior of a hybrid PCM/plaster: A numerical and experimental investigation Applied Thermal Engineering, 111, pp. 49 - 591ISSN: 1359-4311 |
2017Journal Article The phytochelatin synthase gene in date palm (Phoenix dactylifera L.): Phylogeny, evolution and expression Ecotoxicology and Environmental Safety, 140, pp. 7-171 |
2017Conférence Amélioration du confort par l’intégration des matériaux intelligents (MCP) 1st Int. Seminar on the Apport of the Simulation in Technological Innovation, Ghardaïa, Algeria, March, 07-08-2017. |
2016Journal Article Simulation of aromatic polycyclic hydrocarbons remobilization from a river sediment using laboratory experiments supported by passive sampling techniques Environmental Science and Pollution Research, 23(3), pp. 2426-24361 |
2016Conférence Intensify production, transform biomass to energy and novel goods and protect soils in Europe (INTENSE) The 5th International Conference on Soil Pollution and Remediation, 24-26 September 2016, HangZhou (China) |
2016Journal Article International Communications in Heat and Mass Transfer, 78, pp. 200 - 2061ISSN: 0735-1933 |
2016Journal Article Contribution of long-term hydrothermal experiments for understanding the smectite-to-chlorite conversion in geological environments Contributions to Mineralogy and Petrology, 171(97), |
2016Journal Article Deciphering temperature, pressure and oxygen-activity conditions of chlorite formation Clay Minerals, 51, pp. 615-6331 |
2016Journal Article Comparative avoidance behaviour of the earthworm Eisenia fetida towards chloride, nitrate and sulphate salts of Cd, Cu and Zn using filter paper and extruded water agar gels as exposure media Ecotoxicology and Environmental Safety, 129, pp. 66-741 |
2016Conférence Effets biofongicides de composés majoritaires d’huiles essentielles : applications in vitro sur deux souches s et r mefenoxam de Phytophthora infestans Natural Products & Biocontrol 2016, 21-23 septembre 2016, Perpignan |
2016PhD Thesis Modalités de transferts de l’arsenic et du chrome au sein d’un substrat naturel argileux : influence des conditions physico-chimiques et de la présence de ligands Thèse de l’Université de Lille 1, 198pp, |
2016Journal Article Int. J. of Numerical Methods for Heat & Fluid Flow, 26(5), pp. 1346 - 13641 |
2016Journal Article Mechanika, 22(5), pp. 371-3751 |
2016Journal Article Applied Mathematical Modelling, 40(5–6), pp. 3749 - 37631ISSN: 0307-904X |
2016Journal Article Fluid flow and polymetallic sulfide mineralization in the Kettara shear zone (Jebilet Massif, Variscan Belt, Morocco) Journal of African Earth Sciences, 119, pp. 17-371 |
2016Journal Article Temperature effects on retention and separation of PAHs in reversed-phase liquid chromatography using columns packed with fully porous and core-shell particles Journal of Chemistry, 2016, pp. 1-121 |
2016Journal Article Determining the influence of the physicochemical parameters of urban soils on As availability using chemometric methods: A preliminary study Journal of Environmental Sciences, 47, pp. 183-1921 |
2016Conférence Les sols urbains de la Métropole Européenne de Lille (France) : Premiers éléments de caractérisation et enjeux 13èmes Journées d’étude des sols, 4-8 juillet 2016, Louvain-la-Neuve (Belgique) |
2016Journal Article Prediction of extractable Cd, Pb and Zn in contaminated woody habitat soils using a change point detection method Pedosphere, 26(3), pp. 282-2981 |
2016Conférence 49th Int. Conference on Water Management Modeling (ICWMM), 24 - 25 February 2016, Toronto, Canada |
2016Journal Article Metal, nutrient and biomass accumulation during the growing cycle of Miscanthus established on metal-contaminated soils Journal of Plant Nutrition and Soil Science, 179(2), pp. 257-2691 |
2016Journal Article Quantifying the resuspension of sediment and associated metallic contaminants with fallout radionuclide measurements in a channelized river draining an industrial catchment Journal of Soils and Sediments, 16(1), pp. 294-3081 |
2016Conférence Etat des connaissances sur les sols, usages et productions potagères dans les jardins français Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux |
2016Conférence Retour d’expérience sur la problématique des jardins affectés massivement par les activités passées de Metaleurop Nord: Projet REPJAR Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux |
2016Conférence La maîtrise du ruissellement et de l’érosion dans le bassin versant de la Canche (Région Hauts de France) Colloque Aquacity. Session : L’eau, agent d’érosion et de transport dans un bassin versant : Quelles incidences sur la ges-tion du territoire ? Quelles connaissances à apporter ?, 15-16 Juin 2016, Lille |
2016Conférence Source tracing of fluvial suspended sediments by magnetic and geochemical particle characterization: example of the Canche watershed (Nord-Pas-de-Calais, France) European Geosciences Union General Assembly 2016, 17-22 April 2016, Vienna (Autriche) |
2016Conférence Suspended sediment transport and sediment fingerprinting in the watershed of the Canche (Nord-Pas-de-Calais, France): a multi-parameter approach I2SM, 10-13 Juillet 2016, Montreal (Canada) |
2016PhD Thesis Bioaccessibilité des polluants métalliques - Apport à l’évaluation de l’exposition des populations vivant sur des sites contaminés HDR Université Lille 1, 224pp, |
2016Conférence Towards the numerical investigation of convective solid/liquid phase change in porous media via a new gray lattice Boltzmann model 12th Int. Conference on Heat Transfer, Fluid Mechanics and Thermodynamics (HEFAT 2016), 11 - 13 July 2016, Malaga, Spain(paper # 1570233925), |
2016Conférence De l’acquisition de données environnementales et sociales à l’évaluation de l’exposition des jardiniers Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux |
2016Journal Article Inquiries into the measurement of vapour permeability of permeable materials Construction and Building Materials, 102, pp. 338 - 3481ISSN: 0950-0618 |
2016Conférence Assessment of oral and lung bioaccessibilities of metals from smelter-impacted dust The 3rd International Symposium on Environment and Health, 14-20 August 2016, Galway (Ireland) |
2016Journal Article Tectono-metamorphic evolution of the internal zone of the Pan-African Lufilian orogenic belt (Zambia): Implications for crustal reworking and syn-orogenic uranium mineralizations Lithos, 240-243, pp. 167-1881 |
2016Conférence Comment continuer à consommer ses fruits et légumes cultivés dans un contexte contaminé? Retour d’expérience. Rencontres Internationales de Liessies « Les sols nourriciers », 22 septembre 2016, Liessies |