Results 241 to 250 of about 5,737,181 (292)

Predicting Ionospheric Electron Density Profiles

Radio Science, 1968
Typical measurements of the electron density in the various regions of the ionosphere are reviewed and the current availability of predictions based on these measurements is discussed. A method is suggested to combine regular ionospheric predictions such as f0F2 and f0E with estimates of electron density in the lower ionosphere and with empirical ...
George W. Haydon, Donald L. Lucas
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Electron Density Profile Measurements

1974
Abstract : Electron density profiles of a low density supersonic argon plasma were obtained using 35-GHz microwave attenuation data and spectral intensity measurements of the 4158- and 6032-A argon emission lines. The integrated profile data from the spectral intensity and microwave attenuation measurements were inverted to local values of the emission
J. D. Few, Joseph A. Sprouse
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Reliability of electron density profiles

Advances in Space Research, 1985
Abstract Deviations from horizontal stratification in the F-region can cause significant errors in electron density profile calculations from ionograms. Such situations exist every day during sunrise and sunset. Angle of arrival measurements and studies of the variation of other F-region parameters indicate that gravity waves are frequently strong ...
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Ionosphere and plasmasphere electron density profiles

2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), 2014
The ionosphere-plasmasphere region of Earth's environment extends from ∼60 km altitude above the surface to a geocentric distance of roughly 4 R E . Radio wave propagation in this region is predominantly controlled by the electron density distribution and the geomagnetic field.
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MGS electron density profiles: Analysis of the peak magnitudes

Icarus, 2009
Abstract We analyze here the behavior of the magnitudes of the F 1 and E peaks of the electron density profiles measured by the Radio Science Subsystem of the Mars Global Surveyor spacecraft, as a function of solar zenith angle χ and solar flux.
Fox, Jane L., Yeager, Katherine E.
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Direct Determination of the Electron Density Profile of Nerve Myelin

Nature New Biology, 1973
Electron density profile of nervemyel in at a resolution of 7 A has been determined using a direct method of structure analysis. The results provide a basis for interpreting the molecular distribution of the nerve myelin membrane.
C R, Worthington, T J, McIntosh
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IONOSPHERIC ELECTRON DENSITY PROFILE MODEL

1970
Abstract : The paper describes a project undertaken by 4th Weather Wing to produce a realistic electron density profile based upon parameters which can be forecast with reasonable accuracy. The ionospheric electron density profile model presented in this paper consists of the sum of three Chapman layers (E, F1, F2).
Franklin R. Hartranft, Thomas D. Damon
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The Spatial Profile of Density in Electron Beam Generated Plasmas

Annual Technical Conference Proceedings, 2013
Abstract In electron beam generated plasmas, plasma generation is confined to the beam volume and is largely independent of reactor geometry. When the beam is magnetically confined, these plasmas exhibit excellent uniformity along the axis of beam propagation but have highly non-uniform charged particle density profiles normal to the beam axis.
D.R. Boris, R.F. Fernsler, S.G. Walton
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New description of the electron density profile

Advances in Space Research, 1984
Abstract Methods are described by which the desired analytical representation of the whole profile might be reached while enforcing the most important observed physical features. An outline of future work in this connection is given.
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Electron-density profiles from laser scattering

Canadian Journal of Physics, 1968
The electron density as a function of position within a plasma jet has been determined by measurements of the coherent scattering of laser light. The electron-density profiles thus obtained are compared with those obtained from spectroscopic measurements. It is shown that the width of the satellites observed in earlier work may be accounted for by the
R. A. Nodwell, G. S. J. P. van der Kamp
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