Results 221 to 230 of about 889,780 (262)

On the Electron Temperature of the Chromosphere.

Publications of the Astronomical Society of Japan, 1950
Abstract. The hypothesis of the high electron temperature of the chromosphere has been criticized, comparing the flash observation with the theories of the metallic ionizations and the emission curve of growth for Call H and K. Our results do not favor the high electron temperature hypothesis: For the electron temperature as high as 35 ...
Shotaro Miyamoto, Ichiro Kawaguchi
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Temperatures of Nuclei, Electron Temperatures and Electron Concentrations

1970
The nuclei of planetary nebulae are very hot stars. This fact explains in the first place the large apparent brightness of the nebulae, which are many times brighter than their nuclei. Since the emission of the nebula is caused by short-wave radiation from the nucleus, it follows that the nucleus radiates very much more energy in this region of the ...
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Electron temperature probe

2013
The electron temperature probe (ETP) was invented in Japan in 1970’s. The probe measures the electron temperature accurately and the measurement is not influenced by the electrode contamination. The instrument has low weight, low data transmission bit rate and low power consumption.
K.-I. Oyama, C. Z. Cheng
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An electronic temperature controller

Journal of Scientific Instruments, 1953
An instrument is described in which a thermistor, immersed in the fluid system to be controlled, is connected in an a.c. Wheatstone bridge operated at 50 c/s. An error signal results when the thermistor is not at the required temperature, and is passed, after amplification, to a phasesensitive detector which operates a relay controlling the heating and/
B E Noltingk, M A Snelling
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Electron Temperature. Electron Concentration

1997
The electron temperature and electron concentration are like conductors of the physical processes in any plasma, including the strongly ionized medium of gaseous nebulae.
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Electron temperatures in the ionosphere

Planetary and Space Science, 1963
Calculation of the heating rate of ambient electrons in the ionosphere due to solar ultraviolet ...
A. Dalgarno, M.B. McElroy, R.J. Moffett
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Low-temperature electronics

IEEE Circuits and Devices Magazine, 1990
An overview of semiconductor-based and superconductor-based low-temperature electronics is presented. The general issues of reliability and thermal expansion mismatch are discussed. The discussion of semiconductor electronics starts with a description of a cryogenic supercomputer, the ETA, and then covers devices and materials, noise and applications ...
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Low temperature CESR and electron-electron interactions

Physica B+C, 1981
Abstract The electron-electron cross-relaxation rate has the right order of magnitude to explain the variation of linewidth and g factor against temperature of Conduction Electron Spin Resonance in Aluminium at low temperatures.
J. Witters, A. Stesmans
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Attaining low electron temperatures in electron coolers

AIP Conference Proceedings, 1996
Some properties of electron coolers relevant to studies of ion‐electron recombination are reviewed. We discuss the influence of the electron temperature on energy resolution and count rates in recombination experiments and how these have been increased by lowering the transverse electron temperature through adiabatic beam expansion.
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ELECTRONICS RESEARCH PROGRAM. LOW-TEMPERATURE ELECTRONICS

1963
Abstract : The initial experimental work on the high-field superconducting characteristics has started with an investigation of the effect of grain size on the critical field (H sub c)-critical current (I sub c) relationship. Measurements have been made which show an anomalous behavior of H sub c versus I sub c for a certain range of grain sizes ...
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