Results 11 to 20 of about 5,052,753 (344)

On the question of the radius of elementary particles [PDF]

open access: yesE3S Web of Conferences, 2023
This article belongs to the field of theoretical physics, specifically the study of elementary particles. We discuss the parameters of elementary particles, their interactions with gravitational potential and magnetic fields, stability with respect to ...
Safonova Nina
doaj   +1 more source

Total, direct and dissociative electron impact ionization cross sections of the acetylene molecule [PDF]

open access: yesJournal of the Serbian Chemical Society, 2000
The total electron impact ionization cross sections of the acetylene molecule have been measured in the incident electron energy range from threshold to 1000 eV.
Josifov Goran   +3 more
doaj   +3 more sources

Regenerative and Protective Effects on Dental Tissues of a Fluoride–Silicon-Rich Toothpaste Associated with a Calcium Booster: An In Vitro Study

open access: yesDentistry Journal, 2023
Calcium boosters have been used as a supplement for fluoride toothpastes to repair the dental tissues and reduce dentin permeability. This in vitro study aimed to characterize the regenerative and protective effects of the treatment of dental tissues ...
Fabiano Vieira Vilhena   +3 more
doaj   +1 more source

Mechanisms formation of electron-hole trap centers in LiKSO4 crystall

open access: yesEurasian Journal of Physics and Functional Materials, 2021
The mechanisms of creation of electron-hole trapping centers in LiKSO4 have been investigated by the methods of vacuum and thermal activation spectroscopy.
T.N. Nurakhmetov   +9 more
doaj   +1 more source

Energy transfer of intrinsic electronic excitation to impurities in the CaSO4 − Mn crystal

open access: yesEurasian Journal of Physics and Functional Materials, 2021
The nature of the impurity emission center and the energy transfer mechanisms from intrinsic electronic excitations to the Mn2+ impurity centers in the CaSO4 − Mn crystal have been investigated.
T.N. Nurakhmetov   +11 more
doaj   +1 more source

The transport parameters of an electron swarm and electron energy distribution in Xe, He and (Xe-He) mixtures using Boltzmann equation [PDF]

open access: yesKirkuk Journal of Science, 2012
The Boltzmann transport equation is used to calculate the electron energy distribution function (EEDF) and the transport parameters in pure Xe, He and their mixtures. The electron swarm parameters are evaluated in the range ( ) V.cm2.
Gulala Muhammad Faraj
doaj   +1 more source

Surface Plasmons Excited by X-rays in the Surface Layers of Solids

open access: yesSolids, 2022
The phenomenon of total external reflection of X-rays at a sliding angle of incidence of a beam of incident X-rays is investigated. For metals, a quantitative law of direct dependence of the refractive index decrement on the interplane distance is ...
Valery M. Stozharov
doaj   +1 more source

Photophysical Properties of Anthracene Derivatives

open access: yesPhotochem, 2023
In this tutorial review, we intend to provide the reader with a comprehensive introduction to the photophysical properties of organic compounds with a specific focus on anthracene and its derivatives.
Agonist Kastrati   +3 more
doaj   +1 more source

Baryon breakdown in black hole

open access: yesFrontiers in Physics, 2022
According to relativity theory, a black hole is a distinct region in spacetime; according to astronomical observations, it is a celestial body transforming matter into high-energy jets.
Lauri Lehmonen, Arto Annila
doaj   +1 more source

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