Sanjay Yadav is a Senior Principal Scientist & Head of the Pressure, Vacuum and Ultrasonic Metrology Section and Prof. Academy of Scientific and Innovative Research (AcSIR), National Physical Laboratory, New Delhi, India. He received his Ph.D. in Physics from Meerut University in 1990. He has published more than 270 papers in international journals and conference proceedings and is the Editor-in-Chief of the journal “MAPAN/Journal of Metrology Society of India,” published by Springer.D.B. Singh is a Professor at Mechanical Engineering Department of Graphic Era Deemed to be University, Dehradun, India. Earlier he was working as Professor at Mechanical Engineering Department of Galgotias College of Engineering and Technology, Greater Noida, India. He has 17 years of teaching experience and received his Ph.D. in Solar Thermal Energy from the IIT Delhi in 2017. Dr. Singh has published more than 40 papers in international journals and conference proceedings. He has also published one book chapter in the “CRC Handbook of Thermal Engineering, Second Edition”, published by Taylor and Francis.Pawan Kumar Arora is a Professor at the Mechanical Engineering Department of Galgotias College of Engineering and Technology, Greater Noida, India. He received his Ph.D. in Mechanical Engineering from Jamia Millia Islamia, New Delhi, in 2014. With 16 years of academic experience, his main research areas are industrial engineering and optimization. Dr. Arora has published more than 30 papers in international journals and conference proceedings, as well as two book chapters.Harish Kumar is currently working as an Assistant Professor at the National Institute of Technology Delhi. With more than 15 years of research and academic experience, he is an active researcher in the area of mechanical measurement and metrology. He served as a scientist at the National Physical Laboratory, India, for more than a decade, and as a Guest Researcher at the National Institute of Standards and Technology, USA, in 2016. He has authored more than 50 publications in peer-reviewed journals and conference proceedings; is an active reviewer for many prominent journals on measurement, metrology and related areas; and is an editor of the upcoming book “Recent Advances in Mechanical Engineering” in the Springer book series Lecture Notes in Mechanical Engineering.
