NEW DELHI: Amid shortage of medical grade Oxygen for rising number of Covid-19 patients in the country, two institutions of the public sector R&D body - Council of Scientific & Industrial Research (CSIR) – have come out with indigenously developed solutions, including one from Dehradun-based Indian Institute of Petroleum for quickly set up on-site oxygen enrichment units in hospitals itself, to save precious time during the pandemic. The other one, developed by Durgapur-based Central Mechanical Engineering Research Institute (CMERI), can work quite effectively up to the altitude of 14,000 ...