1. Aswan University,Faculty of Energy Engineering,Department of Electrical Engineering,Aswan,Egypt,81528
2. College of Science and Arts in Ar-Rass, Qassim University,Department of Computer,Ar Rass,Saudi Arabia,52571
3. University of the Ryukyus,Faculty of Engineering,Dept. of Elect. and Electronics Engineering,Nishihara,Japan,903-0213