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PGi
Atlanta, GA, United States

Postgraduate Institute of Medical Education and Research is a medical and research institution located in Chandigarh, India. It has educational, medical research and training facilities for its students.The founders of the institute are Tulsi Das, Santokh Singh Anand, P N Chuttani, B N Aikat, Sant Ram Dhall and Bala Krishna. PGIMER was conceived and planned in 1960 to provide physical and intellectual milieu for young scientists working in multiple disciplines of medicine, to advance the frontiers of knowledge to render humane service to sick and suffering and to train medical and paramedical manpower, in Chandigarh. The Institute was established in 1962 under the erstwhile state of Punjab. It was declared as an Institute of National Importance by an Act of Parliament w.e.f. 1 April 1967. Wikipedia.


Persson B.N.J.,PGi
Tribology Letters | Year: 2014

The energy dissipation in the contact regions between solids in sliding contact can result in high local temperatures which may strongly affect the friction. This is the case for rubber sliding on road surfaces at speeds above 1 mm/s. I derive equations which describe the frictional heating for arbitrary (non-uniform) motion, taking into account that some of the frictional energy is produced inside the rubber due to the internal friction in rubber. Numerical results are presented for one limiting case for steady sliding. © 2014 Springer Science+Business Media. Source


Persson B.N.J.,PGi
Tribology Letters | Year: 2014

Most natural surfaces and surfaces of engineering interest, e.g., polished or sandblasted surfaces, are self-affine fractal over a wide range of length scales, with the fractal dimension Df = 2.15\pm 0.15± 0.15. We give several examples illustrating this and a simple argument, based on surface fragility, for why the fractal dimension usually is <2.3. A kinetic model of sandblasting is presented, which gives surface topographies and surface roughness power spectra in good agreement with experiments. © 2014 Springer Science+Business Media New York. Source


Patent
PGi | Date: 2012-11-05

A compressible sealing ring assembly seals an annulus between a radially outer member and a radially inner member. The sealing ring comprises one or more sealing ring members (


Patent
PGi | Date: 2012-07-31

A thermowell is provided for positioning on a pipeline or tank to measure the temperature. The thermowell comprises a head for receiving a probe, and the well has a closed end. An elongated hollow tubular connects the head and the well. The tubular includes one or more tubular parts, each of a selected axial length, joined by a friction welding to one of the more of the head, the well or another of the tubular parts.


Patent
PGi | Date: 2012-11-13

A ball valve is provided for threaded connection to a separable component

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