1. School of Electrical and Electronic Engineering; The University of Manchester; Ferranti Building Manchester M13 9PL UK
2. Department of Electrical Engineering; Lahijan Branch, Islamic Azad University; Lahijan Iran
3. Department of Engineering; Aliabad Katoul Branch, Islamic Azad University; Aliabad Katoul Iran
4. Electrical Engineering Department, Faculty of Electrical & Computer Engineering; University of Tabriz; Tabriz Iran