Research Publications

Multiscale modeling of moisture diffusion in polymer/clay nanocomposites

Ali Makhloufi, Djelloul Gueribiz, Frédéric Jacquemin, and Sylvain Freour; Journal of Reinforced Plastics and Composites. 2023;42(21-22):1154-1166.

In this paper, a multiscale approach is proposed to study the moisture diffusion behavior of polymer/clay nanocomposites. For this purpose, a new method to determine the representative elementary volume is proposed for possible nanocomposites structures. For this study, two structures at nanoscale are considered based on micrographs of the actual microstructures of these materials at this scale. The results, obtained for the in-depth profiles of the moisture content as well as the overall moisture diffusion kinetics curves revealed a significant effect of the clay volume fraction on the moisture diffusion in nanocomposites. Furthermore, the predicted results show, that the moisture diffusion behavior at microscale strongly depends on the structure at nanoscale. From these results, it seems that the exfoliated structure is the most critical for the moisture diffusion in polymer/clay nanocomposites.

https://doi.org/10.1177/07316844221146231

Kadri, C.B., Guerroudj, A., Hamlat, A. et al. Statistical analysis of remote sensing eco-environmental techniques under land use and land cover constraints: a case study of Blida Province, Algeria. Acta Geophys. (2025). https://doi.org/10.1007/s11600-025-01673-8 https://link.springer.com/article/10.1007/s11600-025-01673-8

The Remote Sensing Ecological Index (RSEI) is widely used to assess environmental quality, yet the influence of weighting methods and land cover types on its outputs remains underexplored. Based on

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Hamlat, A., Tidjani, A. E.-B., Yebdri, D., Errih, M., & Guidoum, A. (2014). Water quality analysis of reservoirs within Western Algeria catchment areas using water quality index CCME WQI. Journal of Water Supply: Research and Technology—AQUA, 63(4), 311. doi:10.2166/aqua.2013.226

The present paper aims at determining the status and trends in water quality at Western Algeria reservoirs. The method consists of the computation of Water Quality Index (WQI) on the

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Hamlat, A., Kadri, C. B., Sekkoum, M., Guidoum, A., & Remada, A. (2022). Multi-criteria decision-making approach for selecting an alternative wastewater treatment plant site in urban areas of Laghouat (North-Central Algeria). Euro-Mediterranean Journal for Environmental Integration, 7(4), 511–530. https://doi.org/10.1007/s41207-022-00333-3

Environmental projects need decision-making that integrates environmental, socio-political, and economic factors. Finding a suitable location for a wastewater treatment plant (WWTP) can be a complex and challenging task for the

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