Prabhansu, PhD, is an assistant professor in the Department of Mechanical Engineering at Sardar Vallabhbhai National Institute of Technology Surat, Gujarat, India. He is associated with the Renewable and Sustainable Energy Lab at the Institute and has been working in the field of solar energy extraction and gasification for the past 11 years.
Nayan Kumar, PhD, is an assistant professor in the Department of Electrical Engineering, Muzaffarpur Institute of Technology, Muzaffarpur, Bihar, India. He earned his PhD in electrical engineering from the National Institute of Technology Durgapur, India, and he is an editor on a number of books with Scrivener Publishing.