Results 31 to 40 of about 5,052,753 (344)
Science 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
Xfel: Mighty view into microworld [PDF]
Tehnika, 2014 European x-ray free electron laser, i.e. company and institute European XFEL GmbH (EuXFEL), represents the center point of contemporary particle physics, as well as precise, sophisticated and advanced engineering.
Ekmedžić Marko Ž., Rašuo Boško R.
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Crown-down preflaring in the determination of the first apical file
Brazilian Oral Research, 2010 In this study, scanning electron microscopy (SEM) was used to evaluate the adaptation of the first apical file after preflaring in mesiobuccal (MB) and mesiolingual (ML) canals of mandibular molars considering the tactile sensibility as a reference.
Luiz Fernando Machado Silveira +4 more
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Electron hole capture centers in an irradiated K2SO4-Cu crystal
Eurasian 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
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Electronic Markets and Electronic Hierarchies [PDF]
Communications of the ACM, 1987 Abstract The innovations in information technologies of the past two decades have radically reduced the time and cost of processing and communicating information. These reductions have in turn brought many changes in the ways that tasks are accomplished in firms.
Thomas W. Malone +2 more
openaire +1 more source
On Emergent Particles and Stable Neutral Plasma Balls in SU(2) Yang-Mills Thermodynamics
Universe, 2022 For a pure SU(2) Yang–Mills theory in 4D, we revisit the spatial (3D), ball-like region of radius r0 in its bulk subject to the pressureless, deconfining phase at T0=1.32Tc, where Tc denotes the critical temperature for the onset of the deconfining ...
Ralf Hofmann, Thierry Grandou
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Effect of Dental Filling Materials on Electron Beam Radiotherapy Dose Distribution in Head Region: a Monte Carlo Study by FLUKA and MCNPX Codes [PDF]
Iranian Journal of Medical Physics, 2020 Introduction: Radiation therapy is regarded as the mainstay treatment for head or neck cancer patients. In this method, the backscattered radiation of dental composites can damage the surrounding tissue.
Mohamad Reza Rezaie Rayeni Nejad +3 more
doaj +1 more source
Spectral structure and solution of fractional hydrogen atom difference equations
AIMS Mathematics, 2020 In this study, discrete fractional hydrogen atom (DFHA) operators are presented. Hydrogen atom differential equations have series solution due to having singularity and also obtaining a series solution for DFHA equations have some difficulties, for this ...
Erdal Bas +2 more
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Electron–electron and electron–hole pairing in graphene structures [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2010 The superconducting pairing of electrons in doped graphene owing to in-plane and out-of-plane phonons is considered. It is shown that the structure of the order parameter in the valley space substantially affects conditions of the pairing. Electron–hole pairing in a graphene bilayer in the strong coupling regime is also considered.
Lozovik, Yu. E. +2 more
openaire +3 more sources
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source