Results 21 to 30 of about 4,690,653 (292)

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

Modeling the Plasma Frequency for F2-Region Using Modified Chapman Function and NeQuick2 Model over Different Geographical Locations and Months [PDF]

open access: yesEngineering and Technology Journal, 2019
This study aims to modeling the plasma frequency profile of the F2 region as a function of geographical location and month of the y ear. The most important model and function used are Chapman function and NeQuick 2 model which have been defined both by ...
Ali Nima
doaj   +1 more source

Modelling of the Electron Density and Total Electron Content in the Quiet and Solar X-ray Flare Perturbed Ionospheric D-Region Based on Remote Sensing by VLF/LF Signals

open access: yesRemote Sensing, 2021
Many analyses of the perturbed ionospheric D-region and its influence on the propagation of ground-based and satellite signals are based on data obtained in ionospheric remote sensing by very low/low frequency (VLF/LF) signals.
Aleksandra Nina
doaj   +1 more source

A coordinated ground-based and IMAGE satellite study of quiet-time plasmaspheric density profiles [PDF]

open access: yes, 2003
Cold plasma mass density profiles in the plasmasphere have been determined for the geomagnetically quiet day of 19th August 2000 using the cross-phase technique applied to ground-based magnetometer data from the SAMNET, IMAGE and BGS magnetometer arrays.
Ozeke, L.G.   +6 more
core   +5 more sources

The Correlation between Ionospheric Electron Density Variations Derived from Swarm Satellite Observations and Seismic Activity at the Australian–Pacific Tectonic Plate Boundary

open access: yesRemote Sensing, 2023
Swarm electron density (Ne) observations from the Langmuir probe (LP) can detect ionospheric disturbances at the altitude of a satellite. Along-track satellite observations provide a large number of very short observations of different places in the ...
Wojciech Jarmołowski   +9 more
doaj   +1 more source

Extending Libraries of Extremely Localized Molecular Orbitals to Metal Organic Frameworks: A Preliminary Investigation

open access: yesCrystals, 2021
Libraries of extremely localized molecular orbitals (ELMOs) have been recently assembled to reconstruct approximate wavefunctions of very large biological systems, such as polypeptides and proteins.
Erna K. Wieduwilt   +4 more
doaj   +1 more source

The Electron Density: A Fidelity Witness for Quantum Computation [PDF]

open access: yes, 2023
There is currently no combination of quantum hardware and algorithms that can provide an advantage over conventional calculations of molecules or materials.
Werner, Dobrautz   +8 more
core   +2 more sources

The estimation of D-region electron densities from riometer data [PDF]

open access: yes, 2003
International audienceAt high latitude the hard electron precipitation associated with auroral activity is a major source of ionization for the D-region, one consequence being the absorption of radio waves.
M. Friedrich   +3 more
core   +2 more sources

Electron energy-loss spectroscopy: DFT modelling and application to experiment [PDF]

open access: yes, 2010
The all-electron density functional theory (DFT) code Wien2k has an established track record of modelling energy-loss near-edge structure (ELNES). The pseudopotential DFT code CASTEP can reproduce results found using Wien2k.
Seabourne, Che Royce
core   +7 more sources

The electron density: a fidelity witness for quantum computation [Elektronisk resurs]

open access: yes, 2023
There is currently no combination of quantum hardware and algorithms that can provide an advantage over conventional calculations of molecules or materials.
Lolur, Phalgun,   +8 more
core   +1 more source

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