Encyclopedia of Physical Science and Technology, Volume 19Robert A. Meyers The Encyclopedia of Physical Science and Technology contains in-depth presentations on all of today's critical technology areas, including: Materials synthesis and processing Electronic and photonic materials synthesis and processing Electronic and photonic materials Ceramics Composites High performance metals and alloys Flexible computer-integrated manufacturing Intelligent process equipment Micro- and nano-fabrication Software Microelectronics and opto-electronics High performance computing and networking High definition imaging and displays Sensors and signal processing Data storage and peripherals Computer simulation and modeling Aeronautics Surface transportation technologies Energy technologies Pollution remediation and waste management These technologies were specified as critical by a thirteen-member National Critical Technologies panel composed of government and private-sector members and chaired by chemist William D. Phillips. The Encyclopedia of Physical Science and Technology contains in-depth first-principle and applications descriptions of all the major emerging technologies in the physical sciences, inlcluding: Advanced materials Advanced semiconductor devices Artificial intelligence Digital imaging technology Flexible computer-integrated manufacturing High-density data storage High-performance computing Opto-electronics Sensor technology Superconductors The completely revised and updated Second Edition includes the following contributions: Thirty-one from the University of California that cover subjects ranging from nuclear energy, materials, mathematics, astronomy, and computers to anti-ballistic missile defense systems and laser applications Eighteen from the AT&T Bell Laboratories that cover communications disciplines, such as digital speech processing, telecommunications switching, and optical fibers Eleven from NASA that cover astronomy, atmospheric sciences, and space flight Nine from the University of Illinois that cover subjects ranging from manufacturing process technology and scientific information services to environmental data acquisition and very large scale integration (VLSI design) Eight from United States Navy Research Centers that cover x-ray lasers and telecommunications through non-linear optics and fluid dynamics Eight from the California Institute of Technology that cover astronomy, space sciences, and parallel computing Eight from the University of Colorado that cover subjects ranging from atomic physics ad geochemistry to telecommunications and the materials for microcircuitry Seven from the Electric Power Research Institute that cover power generation systems and air pollution Six from Cornell University that cover the solar system, bioprocess engineering, lasers, and dynamics Countries participating in the preparation of the Encyclopedia include: 76% United States institutions and 24% foreign institutions 12% with the European Economic Community (EEC)--7% of the contributors are from the United Kingdom, 3% are from Germany, and 1% are from Austria 1% Israel, France, and Japan 7% at institutions in Canada--the combination of the United States and Canada accounts for 83% of the contributions The author-institution community includes contributions from a total of eighteen countries--the United States, the United Kingdom, Canada, Germany, France, Israel, Japan, Austria, EEC institutions, Australia, Spain, the Netherlands, India, Korea, New Zealand, Sweden, Switzerland, and Italy The number of articles contributed by each country (excluding the United States) are: 49--the United Kingdom 46--Canada 22--Germany 9--France 7--Israel 7--Japan 5--Austria 2--EEC institutions 2--Australia 2--Spain 2--Netherlands 1--India 1--Korea 1--Norway 1--New Zealand 1--Sweden 1--Switzerland 1--Italy SUBJECT |
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Page 492
... THYRISTOR N ( SCR ) P + GATE ANODE ( b ) ASYMMETRICAL CATHODE CATHODE ANODE SILICON P CONTROLLED N RECTIFIER ( ASCR ) ... thyristor is shown in Fig . 3a . As the blocking voltage ca- pability of the thyristor increases , the width ( w ) ...
... THYRISTOR N ( SCR ) P + GATE ANODE ( b ) ASYMMETRICAL CATHODE CATHODE ANODE SILICON P CONTROLLED N RECTIFIER ( ASCR ) ... thyristor is shown in Fig . 3a . As the blocking voltage ca- pability of the thyristor increases , the width ( w ) ...
Page 493
... Thyristors The structure of the asymmetrical thyristor ( ASCR ) is shown in Fig . 3b . It differs from the previous devices by the modification of the n - base region to include a lighter doped ( n ̄ ) re- gion close to the p - base and ...
... Thyristors The structure of the asymmetrical thyristor ( ASCR ) is shown in Fig . 3b . It differs from the previous devices by the modification of the n - base region to include a lighter doped ( n ̄ ) re- gion close to the p - base and ...
Page 494
... thyristor structure , a bilateral power switching device can be created . The structure of this triac device is shown in Fig . 3d . It can be viewed as two thyristors connected in antiparal- lel . An important distinction is that a ...
... thyristor structure , a bilateral power switching device can be created . The structure of this triac device is shown in Fig . 3d . It can be viewed as two thyristors connected in antiparal- lel . An important distinction is that a ...
Contents
Seismology Engineering | 1 |
Seismology Observational 17 Stochastic Description | 325 |
Seismology Theoretical 47 Solar Chimneys | 335 |
Copyright | |
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a-Si acceleration accelerograms accelerograph amplitude analog analytic set applications bond graph boundary cell circuit coefficient collector components defined density developed devices diffusion domain earth earthquake electric field electrons energy engineering equation example extraction field lines filter flow Fourier transform frequency function galvanic cell grain ground motion heat input integral ionosphere ions layer linear magnetic field magnetosphere magnitude mass measure ment mesocyclone method occur operation optical orbit output parameters particles phase physical planet plasma pressure produced propellant quakes quantizer radiation record region result sample satellite seismic waves seismographs seismology severe thunderstorm shown in Fig signal processing simulation sintering Skylab soil Soil Physics solar chimney solar wind solid solvent space spaceflight storm strong-motion structure supercell surface techniques temperature thermal thyristor tion updraft values variable vector velocity voltage