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Illustration by Raj Verma Institutes of higher education in India have been looking beyond physical classrooms and paper-pen assessments for a long time. In spite of this, adoption of education technology, or EdTech, did not become a huge trend. The Covid-19 outbreak has changed this. As the pandemic forced education institutions to abandon face-to-face teaching, educators turned to technology for everything, right from conducting entrance exams and course delivery to assessments and managing their knowledge repositories. Digital whiteboards, hybrid classrooms, adaptive tracking camera systems, display equipment and audio-visual technologies are the new buzzwords at education institutes. Today, India finds itself doing well in the global EdTech Index with Bangalore and Delhi at 7th and 14th positions, respectively, globally. While the EdTech space had been growing at a steady pace over the years, the pandemic accelerated this growth, making way for a massive expansion in ....
Selection and comparison of thermic fluids in a fired heater Selection and comparison of thermic fluids in a fired heater Hot oil, also called thermic fluid, is a heat transfer fluid (HTF) used in oil refineries and chemical plants. Hot oil, also called thermic fluid, is a heat transfer fluid (HTF) used in oil refineries and chemical plants. HTF transfers heat to the process fluid using sensible heat. Many limitations exist to using steam as a heat source. The steam pressure must be high enough to get the high temperatures required for the process; a steam system also requires water treatment and condensate collection systems; and steam systems are also a common leak point within plants. Conversely, steam is non-toxic and non-flammable, so there is zero negative impact to the environment. ....