Results 171 to 180 of about 254,598 (203)
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Experimental Determination of the Thermal Conductivity of Atmospheric Argon Plasma
The Physics of Fluids, 1966The radial temperature distribution within a cylindrically symmetric argon plasma column was determined by spectroscopic analysis for arc currents of 30 to 60 A. Temperatures obtained from absolute line and absolute continuum radiation were found to be in excellent agreement.
C. F. Knopp, Ali Bulent Cambel
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Conductivity and concentration of small ions in the lower atmosphere
Journal of Geophysical Research, 1965The correlation between polar conductivity and the concentration of atmospheric small ions with mobilities higher than 10−4 m2 v−1 sec−1 has been investigated by means of a Gerdien conductivity meter. The apparatus has been operated in Socorro at an elevation of 4620 ft and at 10,640 ft on a nearby mountaintop at the Langmuir Laboratory.
Niels Jonassen, Marvin H. Wilkening
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The conductivity of lead bromide in a bromine atmosphere
Journal of Solid State Chemistry, 1970Abstract The conductivity of both pure and impurity doped single crystals of lead bromide was measured in bromine vapour. Results of excess conductivities due to electron holes measured in the temperature region 25–350°C are presented. The increase of the excess conductivity varies as the square root of the bromine pressure.
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Improved Apparatus for the Measurement of Atmospheric Electrical Conductivity
Review of Scientific Instruments, 1965A new design for the measurement of the electrical conductivity of the atmosphere under severe conditions is described. The main features include novel means for minimizing the difficulties of maintaining a high insulation resistance not only for the central system, but for the polarizing batteries.
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Predictions of the electrical conductivity and charging of the aerosols in Titan's atmosphere
Icarus, 1987Abstract The electrical conductivity and electrical charge on the aerosols in atmosphere of Titan are computed for altitudes between 0 and 400 km. Ionization of methane and nitrogen due to galactic cosmic rays (GCR) is important at night where these ions are converted to ion clusters such as CH + 5 CH 4 , C 7 H + 7 , C 4 H + 7 , and H 4 C 7 N ...
W.J. Borucki +7 more
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Oceanic Aerosol Levels Deduced from Measurements of the Electrical Conductivity of the Atmosphere
Journal of the Atmospheric Sciences, 1973Abstract The electrical conductivity of the atmosphere, monitored at sites remote from sources of anthropogenic aerosols, may be used to provide an index of the level of suspended particulates for the area representative of the sampling site. Conductivity measurements taken at Mauna Loa, Hawaii, and from ocean research vessels, indicate that most of ...
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The Steady Circulation of a Nonrotating, Viscous, Heat-Conducting Atmosphere
Journal of the Atmospheric Sciences, 1969Abstract The problem of small-amplitude, steady motions and temperature perturbations in a stratified, ideal gas atmosphere with viscosity and heat conduction is investigated. Horizontally varying sources of heat, mass and momentum force these motions. The model assumes two-dimensionality and no rotation.
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An improved conductivity cell for the continuous measurement of sulphur dioxide in the atmosphere
Journal of Physics E: Scientific Instruments, 1969A conductivity cell incorporating the impingement principle suggested by Nash has been designed to facilitate the continuous measurement of atmospheric sulphur dioxide. The instrument based on this cell is provided with several measuring ranges which can be selected to give full scale deflection from 0·2 to 5 p.p.m. sulphur dioxide.
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