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By Sanjay Kumar, Nikita Gupta, Sandeep Kumar, Subho Upadhyay. Sanjay Kumar, PhD, is an assistant professor at the University Institute of Technology, Himachal Pradesh University, Shimla, India. He has six patents to his credit, with several others pending.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.