Osama M. Haraz, Department of Electrical Engineering, Faculty of Engineering, Assiut University, Assiut, Egypt, Egypt; Rabeia Alwahishi, Tayeb A. Denidni, Institut National de la Recherche Scientifique, Montreal, Qu ´ ebec, Canada, Canada; Mohamed Ali, Faculty of Engineering, Assiut University, Assiut, Egypt, Canada