This is the first comprehensive resource of power device electrical characteristics in a cryogenic environment. Using theoretical and experimental knowledge from the literature, temperature dependence of fundamental silicon material parameters like intrinsic carrier concentration, carrier mobilities, lifetimes and bandgap narrowing was identified. The temperature dependent model of avalanche breakdown was developed using experimental data on numerous devices. A wide range of power devices, each with its own unique features, was chosen for theoretical and experimental analysis. Using these analyses, Schottky diodes, power MOSFETs, power BJTs, and power JFETs were optimized in the 300-77K temperature range. Cryogenic Operation of Silicon Power Devices presents the different characteristics of power devices operated below -55 C (220K). It provides data and physics based models for power devices operated at temperatures down to 77K for the first time within a single source. All commercially available devices have been included to provide comprehensive coverage.Also, a fundamental analysis of devices identifies the suitability of various devices to applications requiring cryogenic operations. A quantitative analysis of the relative strengths and weaknesses of these devices is also presented.

The advent of low temperature superconductors in the early 1960's converted what had been a laboratory curiosity with very limited possibilities to a prac tical means of fabricating electrical components and devices with lossless con ductors. Using liquid helium as a coolant, the successful construction and operation of high field strength magnet systems, alternators, motors and trans mission lines was announced. These developments ushered in the era of what may be termed cryogenic power engineering and a decade later successful oper ating systems could be found such as the 5 T saddle magnet designed and built in the United States by the Argonne National Laboratory and installed on an experimental power generating facility at the High Temperature Institute in Moscow, Russia. The field of digital computers provided an incentive of a quite different kind to operate at cryogenic temperatures. In this case, the objective was to ob tain higher switching speeds than are possible at ambient temperatures with the critical issue being the operating characteristics of semiconductor switches under cryogenic conditions. By 1980, cryogenic electronics was established as another branch of electric engineering."

This book presents proceedings from the XXIV DAE-BRNS High Energy Physics (HEP) Symposium 2020, held at the National Institute of Science Education and Research, Jatni, Odisha, India. The contributions cover a variety of topics in particle physics, astroparticle physics, cosmology and related areas from both experimental and theoretical perspectives, namely (1) Standard Model Physics, (2) Beyond Standard Model Physics, (3) Relativistic Heavy-Ion Physics & QCD, (4) Neutrino Physics, (5) Particle Astrophysics & Cosmology, (6) Detector Development Future Facilities and Experiments, (7) Formal Theory, (8) Societal Applications: Medical Physics, Imaging, etc.

Tobacco (Nicotiana tabacum L. and N. rustica L.) is an important crop for the economy of India. Gujarat is a leading tobacco producing state of India contributing 33 % of total tobacco production from 0.45 lakh ha. A large number of tobacco varieties have been developed during last six decades for quality and quantity improvement throughout the world using local selection, mutation breeding, hybridization and exotic introduction followed by pedigree selection. However, no systemic effort has been made to understand the existing diversity pattern in tobacco cultivars of Gujarat, which is crucial to define future breeding strategy in tobacco improvement.

In twelve startling and vividly imagined stories, Ranbir Singh Sidhu overturns the lives of ordinary Indians living in America to bring us a bold debut collection, "Good Indian Girls."
A woman attends a de-cluttering class in search of love. A low-level, drunkard diplomat finds himself mysteriously transferred to the Consulate in San Francisco, where everyone believes he is a great, lost poet. An anthropological expedition searching for early human fossils goes disastrously wrong and the leader turns to searching for the very first sounds made by humans. The wife of a retiring Consul pays tribute to her pet python by preparing to serve him to her dinner guests. A strange skull discovered outside an orphanage results in the creation of a cult around one of the charismatic young residents.
Unsettling, moving, insightful, humorous -- these beautifully written stories travel between despair and redemption as they illuminate the lives of often deeply flawed characters, and mark the emergence of a major new voice in American fiction.