Results 41 to 50 of about 8,192,646 (396)

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

Self-interaction correction to density-functional approximations for many-electron systems

open access: yes, 1981
exchange and correlation, are not. We present two related methods for the self-interaction correction (SIC) of any density functional for the energy; correction of the self-consistent one-electron potenial follows naturally from the variational principle.
J. Perdew, A. Zunger
semanticscholar   +1 more source

Effect of the amount of SiC, number of strokes, and applied load on the reciprocating wear behavior of Al-SiC composites

open access: yesScience and Engineering of Composite Materials, 2015
The wear behavior of Al/SiC composites prepared by stir casting technique is investigated to find out the effects of the weight percentage of SiC, load, and the number of strokes on a shaper machine.
Lakshmipathy Jayakumar   +1 more
doaj   +1 more source

Electron hole capture centers in an irradiated K2SO4-Cu crystal

open access: yesEurasian Journal of Physics and Functional Materials, 2021
The methods of vacuum ultraviolet and thermal activation spectroscopy were used to measure the excitation spectra of impurity radiation in the fundamental absorption band of K2SO4-Cu crystals at 15 K and 300 K.
T. N. Nurakhmetov   +8 more
doaj   +1 more source

Electronic structure of MnSi: The role of electron-electron interactions

open access: yesPhysical Review B, 2006
We present an experimental study of the electronic structure of MnSi. Using x-ray absorption spectroscopy XAS, x-ray photoemission, and x-ray fluorescence, we provide experimental evidence that MnSi has a mixed valence ground state. We show that self-consistent local density approximation supercell calculations cannot replicate the XAS spectra of MnSi,
Carbone F   +9 more
openaire   +5 more sources

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

Electrons in Glass [PDF]

open access: yesScience, 1975
An outline is given of some of the steps which in the last ten years have led to an understanding of many of the properties of conduction and valence bands in non-crystalline materials. The concept of a mobility edge is described and some of the experimental evidence for its existence.
openaire   +8 more sources

Electron-acoustic_solitary_structures_in_two-electron-temperature_plasma_with_superthermal_electrons

open access: yes, 2011
The propagation of nonlinear electron- acoustic waves (EAWs) in an unmagnetized collision- less plasma system consisting of a cold electron fluid, superthermal hot electrons and stationary ions is investigated. A reductive perturbation method is employed
Chen, H., Liu, S. Q.
core   +1 more source

Interplay of spin-orbit coupling and Coulomb interaction in ZnO-based electron system [PDF]

open access: yes, 2020
Spin-orbit coupling (SOC) is pivotal for various fundamental spin-dependent phenomena in solids and their technological applications. In semiconductors, these phenomena have been so far studied in relatively weak electron-electron interaction regimes, where the single electron picture holds.
arxiv   +1 more source

Accurate spin-dependent electron liquid correlation energies for local spin density calculations: a critical analysis

open access: yes, 1980
We assess various approximate forms for the correlation energy per particle of the spin-polarized homogeneous electron gas that have frequently been used in applications of the local spin density approximation to the exchange-correlation energy ...
S. H. Vosko, L. Wilk, M. Nusair
semanticscholar   +1 more source

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