Laboratory of Engineering Science for Environment—LaSIE FRE-CNRS 3474, University of La Rochelle,
La Rochelle, France
Department of Physics, Faculty of Science, University Cadi Ayyad, Marrakesh, Morocco
Copyright © 2014 Abdelhamid Belghit, Mustapha Benyaich et al. This is
an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any
medium, provided the original work is properly cited.