Results 1 to 10 of about 1,129,256 (278)

Approximation Solution for the Zener Impact Theory [PDF]

open access: yesMathematics, 2021
Collisions can be classified as completely elastic or inelastic. Collision mechanics theory has gradually developed from elastic to inelastic collision theories.
Ping-Kun Tsai   +4 more
doaj   +2 more sources

The Semiclassical Limit of the Gailitis Formula Applied to Electron Impact Broadening of Spectral Lines of Ionized Atoms

open access: yesAtoms, 2021
The present paper revisits the determination of the semi-classical limit of the Feshbach resonances which play a role in electron impact broadening (the so-called “Stark“ broadening) of isolated spectral lines of ionized atoms. The Gailitis approximation
Sylvie Sahal-Bréchot
doaj   +1 more source

Misinformation Correction Maximization Problem with Edge Addition in Social Networks [PDF]

open access: yesJisuanji kexue, 2022
The popularity of online social networks such as Wechat has aroused people’s more attention to information diffusion.The spread of misinformation in social networks may lead to serious consequences,such as economic losses and public panic.Therefore ...
SONG Xin-yue, SHUAI Tian-ping, CHEN Bin
doaj   +1 more source

The correction of Inelastic Neutron Scattering data of organic samples using the Average Functional Group Approximation [PDF]

open access: yesEPJ Web of Conferences, 2022
The use of the Average Functional Group Approximation for self-shielding corrections at inelastic neutron spectrometers is discussed. By taking triptindane as a case study, we use the above-mentioned approximation to simulate a synthetic dynamic ...
Preziosi Enrico   +3 more
doaj   +1 more source

Visual nesting impacts approximate number system estimation [PDF]

open access: yesAttention, Perception, & Psychophysics, 2012
The approximate number system (ANS) allows people to quickly but inaccurately enumerate large sets without counting. One popular account of the ANS is known as the accumulator model. This model posits that the ANS acts analogously to a graduated cylinder to which one "cup" is added for each item in the set, with set numerosity read from the "height" of
Dana L, Chesney, Rochel, Gelman
openaire   +2 more sources

Holographic neutrino transport in dense strongly-coupled matter

open access: yesJournal of High Energy Physics, 2023
A (toy) model for cold and luke-warm strongly-coupled nuclear matter at finite baryon density, is used to study neutrino transport. The complete charged current two-point correlators are computed in the strongly-coupled medium and their impact on ...
M. Järvinen   +3 more
doaj   +1 more source

Impact of Commutation Failure Preventions on HVDC System Based on a Multi-Index Value Set Approach

open access: yesIEEE Access, 2021
This paper proposes a systematic method, based on rational approximation and value set approach, to unravel the impact of commutation failure preventions (CFPREVs) on HVDC system dynamics.
Minquan Chen   +3 more
doaj   +1 more source

Approximating spectral impact of structural perturbations in large networks [PDF]

open access: yesPhysical Review E, 2010
Determining the effect of structural perturbations on the eigenvalue spectra of networks is an important problem because the spectra characterize not only their topological structures, but also their dynamical behavior, such as synchronization and cascading processes on networks.
Milanese, Attilio   +2 more
openaire   +3 more sources

Deep Minima in the Triply Differential Cross Section for Ionization of Atomic Hydrogen by Electron and Positron Impact

open access: yesAtoms, 2020
We investigate ionization of atomic hydrogen by electron- and positron-impact. We apply the Coulomb–Born (CB1) approximation, various modified CB1 approximations, the three body distorted wave (3DW) approximation, and the time-dependent close-coupling ...
C. M. DeMars   +4 more
doaj   +1 more source

Widths and Shifts of Isolated Lines of Neutral and Ionized Atoms Perturbed by Collisions With Electrons and Ions: An Outline of the Semiclassical Perturbation (SCP) Method and of the Approximations Used for the Calculations

open access: yesAtoms, 2014
“Stark broadening” theory and calculations have been extensively developed for about 50 years. The theory can now be considered as mature for many applications, especially for accurate spectroscopic diagnostics and modeling, in astrophysics, laboratory ...
Sylvie Sahal-Bréchot   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy