Ramachandran Venkatasubramanian

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Near-field thermophotovoltaic (TPV) systems with carefully tailored emitter-PV properties show large promise for a new temperature range (600 − 1200K) solid state energy conversion, where conventional thermoelectric (TE) devices cannot operate due to high temperatures and far-field TPV schemes suffer from low efficiency and power density. We present a(More)
Torsion of the gallbladder is an unusual cause of gangrenous cholecystitis. Even with the advent of recent radiological imaging modalities, the preoperative diagnosis of this entity remains elusive. Herein, we present a case of gallbladder torsion in a 76-year-old lady who successfully underwent laparoscopic derotation and cholecystectomy.
RC and single-inverter-based rail clamps are widely used in semiconductor products for electrostatic discharge (ESD) protection. We propose a technology-node-independent design methodology for these rail clamp circuits that takes process, voltage, and temperature variations into consideration. The methodology can be used as a cookbook by the designer or be(More)
In an effort to develop a Standard Reference Material (SRM™) for Seebeck coefficient, we have conducted a round-robin measurement survey of two candidate materials-undoped Bi2Te3 and Constantan (55 % Cu and 45 % Ni alloy). Measurements were performed in two rounds by twelve laboratories involved in active thermoelectric research using a number of different(More)
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