1. Technical Support Sector, Qena Water and Wastewater Company, Qena, Egypt
2. Electrical Engineering Department, Aswan University, Aswan, Egypt
3. Department of Computer Engineering and Mathematics, University Rovira i Virgili, Tarragona, Spain
4. Electronic Engineering Department, Faculty of Engineering, S. Valley University, Qena, Egypt
5. Elec. Power Dept. Faculty of Engineering, Cairo University, Giza, Egypt