Results 31 to 40 of about 4,690,653 (292)
Efficient numerical simulation of atmospheric pulsed discharges by introducing deep learning
Frontiers in Physics, 2023 Plasma simulation is an important but sometimes time-consuming approach to study the discharge behaviors of atmospheric pulsed discharges. In this work, an efficient simulation method is proposed by introducing deep learning to investigate the discharge ...
Yuan-Tao Zhang, Shu-Han Gao, Fei Ai
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Electron densities in planetary nebulae [PDF]
The Astrophysical Journal, 1989 A large sample of forbidden lines -[O II], [S II], [Ar IV], and [N I]- have been analyzed to obtain electron densities for 134 planetary nebulae.
Letizia Stanghellini, James B. Kaler
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In situ and ground-based intercalibration measurements of plasma density at l = 2.5 [PDF]
, 2003 [1] Two independent ground-based experiments and two satellite-borne experiments are used to interpret the changes in plasmaspheric composition at the same point in space during moderate geomagnetic activity on 22 January and 14 February 2001.
Bailey, G.J. +12 more
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Electron Wavefunctions and Densities for Atoms [PDF]
Annales Henri Poincaré, 2001 With a special `Ansatz' we analyse the regularity properties of atomic electron wavefunctions and electron densities. In particular we prove an a priori estimate, $\sup_{y\in B(x,R)}|\nablaψ(y)| \leq C(R) \sup_{y\in B(x,2R)}|ψ(y)|$ and obtain for the spherically averaged electron density, $\widetildeρ(r)$, that $\widetildeρ''(0)$ exists and is non ...
Hoffmann-Ostenhof, Maria +2 more
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Differential Resonance Probe (Electron Density Probe)
Antarctic Record, 1975 This paper deals with "differential resonance probe method", which is one of the RF plasma probe techniques. This probe method is compared with other electron density probe method.
Yoshio TAKEYA, Shigeyuki MINAMI
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Mid-point electron density profiles from oblique ionograms
Annals of Geophysics, 1996 A computationally efficient technique for the inversion of oblique ionograms into mid-point electron density profiles is described. The profile is given as the sum of quasi-parabolic functions suitable for ray tracing.
W. S. Kuklinski +2 more
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Tracing electron density changes in langbeinite under pressure
IUCrJ, 2022 Pressure is well known to dramatically alter physical properties and chemical behaviour of materials, much of which is due to the changes in chemical bonding that accompany compression.
Roman Gajda +4 more
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THE EFFECTS OF SOLAR ACTIVITY: ELECTRONS IN THE TERRESTRIAL LOWER IONOSPHERE [PDF]
Zbornik Radova: Geografski institut "Jovan Cvijić", 2017 Solar flare X-ray energy can cause strong enhancements of the electron density in the Earth’s atmosphere. This intense solar radiation and activity can cause sudden ionospheric disturbances (SIDs) and further create ground telecommunication interferences,
Vladimir A. Srećković +3 more
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Economical Models for Electron Densities
The Journal of Physical Chemistry A, 2023 We discuss a new theoretical framework for modeling molecular electron densities. Our approach decomposes the total density into contributions from basis function products and then approximates each product using constrained least-squares approximation in a tailored local basis of functions with adjustable non-linear parameters.
Ellena K. G. Black, Peter M. W. Gill
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The electron density in the plane of the Galaxy [PDF]
Symposium - International Astronomical Union, 1985 Pulsars provide probably the best probes of electron density in the plane of the Galaxy. The dispersion measure, the path integral of electron density along the line of sight from the pulsar to Earth, ∫ neds, is directly measurable from multi-frequency pulse-timing observations.
J. M. Weisberg +2 more
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