Biographical note

Dr CH. V. V. Ramana works at Vignan's Institute of Information Technology (A), India. He has published 60 scientific articles in referred journals, seven books and five book chapters. His research work encompasses scientific instrumentation, PC/microcontroller-based instrumentation, embedded based systems, dielectric studies, digital design, device fabrication and sensors. He received his BSc in instrumentation from Andhra University, India and his MSc, MPhil and PhD in instrumentation from Sri Krishnadevaraya University, India.Dr Santhosh Kumar Alla completed his MSc in physics at Andhra University, India. He completed his MTech in metallurgical engineering at the Indian Institute of Technology, Banaras Hindu University, India, and received his PhD from the Department of Metallurgical Engineering, at the same institution. He is now Associate Professor of Physics at the Aditya Institute of Technology and Management, India. He has published 28 papers international journals and one book chapter.