R. Rajasekar, PhD, Professor and Head of the Department of Mechanical Engineering, Kongu Engineering College (An Autonomous Institution under Anna University), Tamilnadu, India. He obtained his PhD from the Indian Institute of Technology, Kharagpur, and specializes in materials science and engineering, renewable energy, surface coating on solar cells, and tribological performance of carbide inserts. He has published more than 100 research articles in reputed international journals as well as more than 30 book chapters.

C. Moganapriya, PhD, is an associate professor in the Department of Mechanical Engineering, Kongu Engineering College (An Autonomous Institution under Anna University), Tamilnadu, India. She completed her PhD in 2019 and her current research area includes surface engineering of solar cells for performance enhancement of power conversion efficiency and tribological performance of cutting tool inserts by adopting several hard coating materials. She has published 13 research articles and 15 book chapters with international publishers.

P. Sathish Kumar, PhD, is an assistant professor in the Department of Manufacturing, Institute of Mechanical Engineering, Saveetha School of Engineering, SIMATS University, Chennai, Tamilnadu, India. He has published more than 60 research articles and 35 book chapters with international journals and publishers. His main research areas are in tribological studies of mining bits, thin film coating, natural fiber composites and renewable energy.

M. Harikrishna Kumar, PhD, is a lecturer at Sri Krishna Polytechnic College, Coimbatore, India. He has 12 years of teaching and 2 years of industry experience. He served as an assistant professor at Kongu Engineering College, Perundurai, India for 9 years.