Results 11 to 20 of about 5,521,327 (281)

Photoluminescence and thermoluminescence in a Li2SO4 crystall

open access: yesEurasian Journal of Physics and Functional Materials, 2022
The nature of intrinsic emission and the creation of electron-hole trapping centers in irradiated with ultraviolet and X-rays at 15 K and 300 K was investigated in Li2SO4 by methods of spectroscopy. It is shown that in activated Li2 SO4 with an energy of
T.N. Nurakhmetov   +11 more
doaj   +1 more source

Photoluminescence of Cis-Polyacetylene Semiconductor Material

open access: yesApplied Sciences, 2022
Photoluminescence (PL) is one of the key experimental characterizations of optoelectronic materials, including conjugated polymers (CPs). In this study, a simplified model of an undoped cis-polyacetylene (cis-PA) oligomer was selected and used to explain
Kamrun N. Keya   +3 more
doaj   +1 more source

Space Weather Effects from Observations by Moscow University Cubesat Constellation

open access: yesUniverse, 2022
Moscow State University is developing a project for a multi-satellite constellation intended for the monitoring of space radiation. A number of small satellites of CubeSat format were launched into selected orbits crossing the wide range of magnetic ...
Andrey V. Bogomolov   +16 more
doaj   +1 more source

Electron-electron interaction in multiwall carbon nanotubes [PDF]

open access: yes, 2001
Magnetic susceptibility $\chi$ of pristine and brominated arc-produced sample of multiwall carbon nanotubes was measured from 4.2 to 400 K. An additional contribution $\Delta \chi(T)$ to diamagnetic susceptibility $\chi(T)$ of carbon nanotubes was found ...
A.I. Romanenko   +26 more
core   +1 more source

An astrophysical analysis of weather based on the solar wind parameters [PDF]

open access: yesNuclear Technology and Radiation Protection, 2010
The paper represents an attempt to establish whether the specific processes on the Sun had preceded the sudden weather condition changes in Torino for a selected time period by using the method of analogy.
Nikolić Jugoslav L.   +2 more
doaj   +1 more source

Investigation of Interaction Mechanisms of High Energy Electrons and Gamma Quantum with Aqueous Solution of Methyl Orange Dye

open access: yesEast European Journal of Physics, 2022
The level of development of modern nuclear technologies forms a request for the development of new branches of science. At the same time, chemical dosimetry methods are also being improved [1, 2]. The essence of such methods consists in the quantitative
Vitaliy V. Tsyats’ko   +3 more
doaj   +1 more source

Bilepton Resonance in Electron-Electron Scattering [PDF]

open access: yes, 2000
Theoretical backgound for bileptonic gauge bosons is reviewed, both the SU(15) GUT model and the 3-3-1 model. Mass limits on bileptons are discussed coming from $e^+e^-$ scattering, polarized muon decay and muonium-antimuonium conversion. Discovery in $e^
Frampton, Paul H.
core   +3 more sources

OVERVIEW OF X-RAY FLUORESCENCE SPECTROMETRY [PDF]

open access: yesFiabilitate şi Durabilitate, 2021
One of the techniques used in identifying the constituent chemical elements of a material is the X-ray fluorescence method. From the analysis of X-ray fluorescence data the energy and intensity of the characteristic photons emitted by the sample can be
Nicoleta-Maria MIHUȚ   +1 more
doaj  

On the Diffusion Rates of Electron Bounce Resonant Scattering by Magnetosonic Waves

open access: yesGeophysical Research Letters, 2018
Magnetosonic waves have been demonstrated as effective for bounce resonant scattering. Electron scattering rates due to bounce resonance interaction with magnetosonic waves are derived in a general form, where the effects of the finite Larmor radius, of ...
Armando A. Maldonado, Lunjin Chen
doaj   +1 more source

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

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