Results 21 to 30 of about 8,251,356 (397)

Pseudopotentials from electron density [PDF]

open access: yesPhysical Review A, 1996
A method is introduced that allows the construction of pseudopotentials in the density-functional theory. This method is based on a procedure worked out by one of the authors [J. Phys. B 26, 43 (1993); Philos. Mag. B 69, 779 (1994)] for determining Kohn-Sham potentials, one-electron orbitals, and energies from the electron density.
, Nagy, , Andrejkovics
openaire   +2 more sources

Measurement of electron temperature (Te) and electron density (ne) of ZnO RF plasma

open access: yesJournal of Kufa-Physics, 2022
In this study, the ratio method between the two spectral lines was used to calculate the electron temperature (Te) and the density (ne) of argon gas for a zinc oxide (ZnO) cathode using the spectroscopic method.
Mustafa Haydar   +1 more
doaj   +1 more source

Localizing electron density errors in density functional theory [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2019
The accuracy of different density functional approximations is assessed through the use of quantum chemical topology on molecular electron densities.
Rubén Laplaza   +2 more
openaire   +3 more sources

The Comparison of Electron Density between CSES In Situ and Ground-Based Observations in China

open access: yesRemote Sensing, 2022
As the observation accuracy of parameters in the ionosphere cannot be directly checked, the comparison with other observations is the main way to evaluate the data quality of satellite measurements.
Jing Liu   +3 more
doaj   +1 more source

Spectroscopic Characterization of a Pulsed Low-Current High-Voltage Discharge Operated at Atmospheric Pressure

open access: yesApplied Sciences, 2022
The advantages of pulsed low-current high-voltage discharges operated at atmospheric pressure and the ease with which such discharges can be implemented industrially contributed to their popularity. However, the high reactivity of a pulsed plasma implies
Michał Szulc   +3 more
doaj   +1 more source

A SYNTHESIS OF TEMPORAL VARIATIONS IN DOPPLER SPECTRA RECORDED AT A QUASI-VERTICAL INCIDENCE BY THE HF DOPPLER RADAR WITH SPACED RECEIVERS [PDF]

open access: yesRadio Physics and Radio Astronomy, 2021
Purpose: The ionospheric channel is widely used for the communication, radio navigation, radar, direction finding, radio astronomy, and remote radio probing systems.
V. F. Pushin, L. F. Chernogor
doaj   +1 more source

Electron density profile modeling

open access: yesAnnals of Geophysics, 1996
The Base Point Model (BPM) is used to model the electron density (N) profile in the ionosphere, This model assumes two Chapman profile expressions one for the bottomside and one for the topside, and requires a characteristic point called "F region base ...
T. Heredia   +2 more
doaj   +1 more source

First Observations of Mars Atmosphere and Ionosphere with Tianwen-1 Radio-Occultation Technique on 5 August 2021

open access: yesRemote Sensing, 2022
The radio-occultation technique can provide vertical profiles of planetary ionospheric and atmospheric parameters, which merit the planetary-climate and space-weather scientific research so far.
Xiong Hu   +23 more
doaj   +1 more source

Seismo-Ionospheric Effects Prior to Two Earthquakes in Taiwan Detected by the China Seismo-Electromagnetic Satellite

open access: yesAtmosphere, 2022
In this paper, we focused on the characteristics of the seismo-ionospheric effects related to two successive earthquakes, namely, the earthquakes in 2022 in Taitung Sea, Taiwan, China, with magnitudes (M) of 6.7 and 6.3, at 23.45° N, 121.55° E and 23.39°
Yufan Guo   +7 more
doaj   +1 more source

Theoretical ISM Pressure and Electron Density Diagnostics for Local and High-redshift Galaxies [PDF]

open access: yesAstrophysical Journal, 2019
We derive new self-consistent theoretical UV, optical, and IR diagnostics for the interstellar medium (ISM) pressure and electron density in the ionized nebulae of star-forming galaxies.
L. Kewley   +6 more
semanticscholar   +1 more source

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