V Kumar received Ph D in 1980 and presently working as Head of Electronic Department, Indian School Mines, Dhanbad. He has authored over 65-research papers in Int. J. and 70 in Confs. He was a post-doc fellow at CNR, Frascati, Italy, and Visiting Fellow at Univ of Leeds, UK. He gave seminar talk in UK, Italy, Portugal, Singapore and USA.