Results 21 to 30 of about 158,369 (302)

Electron structure of topologically disordered metals

open access: yesCondensed Matter Physics, 2005
Here two methods for calculating the density of states of electrons in conduction band of disordered metals are investigated. The first one is based on the usage of one-parameter trial electron wave function.
P.Yakibchuk
doaj   +1 more source

Interior penalty discontinuous galerkin methods for electromagnetic and acoustic wave equations [PDF]

open access: yes, 2006
Introduction: In this thesis we present and analyze the numerical approximation of the second order electromagnetic and acoustic wave equation by the interior penalty (IP) discontinuous Galerkin (DG) finite element method (FEM).
Schneebeli, Anna
core   +1 more source

Generalized method of Feynman-Pines diagram technique in the theory of energy spectrum of two-level quasiparticle renormalized due to multi-phonon processes at cryogenic temperature

open access: yesCondensed Matter Physics, 2018
Theory of the spectrum of localized two-level quasi-particle renormalized due to interaction with polarization phonons at cryogenic temperature is developed using the generalized method of Feynman-Pines diagram technique.
M.V. Tkach   +3 more
doaj   +1 more source

Properties and temperature evolution of the spectrum of localized quasi-particles interacting with polarization phonons in two models

open access: yesCondensed Matter Physics, 2016
Using the Feynman-Pines diagram technique, the energy spectrum of localized quasi-particles interacting with polarization phonons is calculated and analyzed in the wide range of energies at the finite temperature of the system. It is established that the
M.V. Tkach   +3 more
doaj   +1 more source

A Lagrangian for mass dimension one fermionic dark matter

open access: yesPhysics Letters B, 2016
The mass dimension one fermionic field associated with Elko satisfies the Klein–Gordon but not the Dirac equation. However, its propagator is not a Green's function of the Klein–Gordon operator.
Cheng-Yang Lee
doaj   +1 more source

Operator preconditioning:the simplest case [PDF]

open access: yes, 2022
Using the framework of operator or Calderón preconditioning, uniform preconditioners are constructed for elliptic operators discretized with continuous finite (or boundary) elements.
van Venetië, R., Stevenson, R.
core   +1 more source

Analysis of added mass in cavitating flow [PDF]

open access: yes, 2012
The paper addresses a theoretical study of the added mass effect in cavitating flow.The cavitation is considered to induce a strong time–space variation of the fluid density at the interface between an inviscid fluid and a three-degree-of-freedom rigid ...
BENAOUICHA, Mustapha   +1 more
core   +1 more source

Classification of effective neutrino mass operators [PDF]

open access: yesNuclear Physics B, 2001
34 pages in RevTeX with 18 ...
Babu, K. S., Leung, C. N.
openaire   +2 more sources

Apparent mass of small children: Modelling

open access: yes, 2007
Mass-spring-damper models are widely available for quantifying the whole-body vibration characteristics of primates, human adolescents and human adults, but no models have previously been developed for small children.
Giacomin, J
core   +1 more source

The three-loop polarized pure singlet operator matrix element with two different masses

open access: yesNuclear Physics B, 2020
We present the two-mass QCD contributions to the polarized pure singlet operator matrix element at three loop order in x-space. These terms are relevant for calculating the polarized structure function g1(x,Q2) at O(αs3) as well as for the matching ...
J. Ablinger   +5 more
doaj   +1 more source

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