Results 281 to 290 of about 1,320,406 (342)

The ionization balance of the atmosphere

Journal of Atmospheric and Terrestrial Physics, 1950
Abstract Two methods were developed for determining the residual ionization in brass chambers and the absolute ionization of the hard and the soft component of cosmic radiation in the atmosphere at sea level, without secondaries from the walls of the chambers.
Victor F. Hess, Roger P. Vancour
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Ultrahigh-Resolution Mass Spectrometry in Real Time: Atmospheric Pressure Chemical Ionization Orbitrap Mass Spectrometry of Atmospheric Organic Aerosol.

Analytical Chemistry, 2018
The accurate and precise mass spectrometric measurement of organic compounds in atmospheric aerosol particles is a challenging task that requires analytical developments and adaptations of existing techniques for the atmospheric application.
Christoph Zuth, A. Vogel, Sara Ockenfeld, R. Huesmann, T. Hoffmann   +4 more
semanticscholar   +1 more source

Cosmic-ray Ionization in the Lower Atmosphere

Health Physics, 1987
A high-pressure ion chamber filled with 2.5825 X 10(5) kg m-2 argon as used to measure the dose rates of several sites of interest in an attempt to evaluate the dose rates contributed by cosmic rays. Observation sites included two water reservoirs deeper than 110 m, Mount Ali which is higher than 2500 m, airliners flying at altitudes higher than 6700 m,
P S, Weng, C F, Chen
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Ionization in the Atmosphere of Mars

Proceedings of the IRE, 1929
Assuming that the atmosphere at the surface of Mars consists of ⅕ oxygen and ⅘ other gases, as nitrogen, etc., the composition of the atmosphere to great heights is calculated, just as was done for the earth, from the actions of gas diffusion and gravity. The electron density in the atmosphere of Mars due to the ultraviolet light of the sun is found to
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On the ionization of the upper atmosphere

Terrestrial Magnetism and Atmospheric Electricity, 1916
The subject of the ionization of the upper atmosphere is one of extreme importance to students both of Terrestrial Magnetism and of Atmospheric Electricity, and from various points of view there are indications that this region of the atmosphere is to be treated as one of relatively high electrical conductivity.
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Ionisation in the Upper Atmosphere

Nature, 1927
THE more important agencies which may conceivably cause the ionisation of the upper atmosphere of the earth are the ultra-violet light, α- and β-particles, all of solar origin, the penetrating radiation of cosmic origin, and the ionising radiations from terrestrial sources.
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An improved ionizer for atmospheric plasmas

IEEE Conference Record - Abstracts. 1997 IEEE International Conference on Plasma Science, 1997
Summary form only given, as follows. We have just received a United States Patent, 5592357, "Electrostatic charging apparatus and method", for creating dense atmospheric ion plasmas. The idea is to create positive and negative ions by means of DC or AC corona points, and to combine them into an atmospheric plasma.
I. Alexeff, M. Rader, L. Wadsworth, P. Tsai   +3 more
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On calculations of the ionization in the upper atmosphere

Eos, Transactions American Geophysical Union, 1932
Experiments with radio waves, such as the measurements of the skip‐distances, the time‐intervals for short radio pulses to travel up to the high atmosphere and return, the polarization and the absorption of the waves, have shown that the regions of the high atmosphere above 100 km are heavily ionized, the maximum ionization being at about 200 km above ...
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Atmospheric ionization and its variations

Proceedings of the Physical Society of London, 1924
The atmospheric electricity elements dealt with include the potential gradient, the numbers of positive and negative ions and the charges carried by them, the conductivity of the air and the vertical air-earth current. For instantaneous values it suffices to know the potential gradient and either the conductivity or the current. But in the case of mean
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Satellite potential in an ionized atmosphere

AIAA Journal, 1965
A self-consistent field theory involving the Vlasov equation and the Poisson equation is applied to the study of the potential field around a spherical satellite, the Coulomb drag, and its wake trails in an ionized atmosphere. It is considered that undisturbed particles have a Maxwellian distribution of speeds with large mean free paths in comparison ...
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