Results 21 to 30 of about 1,182,130 (295)
Spontaneous Discrete Symmetry Breaking During Inflation and the NMSSM Domain Wall Problem [PDF]
, 1997 The Next to Minimal Supersymmetric Standard Model (NMSSM), proposed as a solution of the mu problem of the Minimal Supersymmetric Standard Model, has a discrete Z_{3} symmetry which is spontaneously broken at the electroweak phase transition, resulting ...
Abel +30 more
core +5 more sources
Discrete mathematical model of travelling wave of conveyor transport [PDF]
E3S Web of Conferences, 2020 A mathematical model of a travelling wave in a matrix form is constructed. A degree of discreteness of the travelling wave and corresponding steps in phase and length are introduced.
Kravets Viktor +4 more
doaj +1 more source
Numerical Discretization of Variational Phase Field Model for Phase Transitions in Ferroelectric Thin Films [PDF]
Communications in Computational Physics, 2021 Phase field methods have been widely used to study phase transitions and polarization switching in ferroelectric thin films. In this paper, we develop an efficient numerical scheme for the variational phase field model based on variational forms of the electrostatic energy and the relaxation dynamics of the polarization vector.
Li, Ruotai, Du, Qiang, Zhang, Lei
openaire +2 more sources
Simplest model to study reentrance in physical systems [PDF]
, 2011 We numerically investigate the necessary ingredients for reentrant behavior in the phase diagram of physical systems. Studies on the possibly simplest model that exhibits reentrance, the two-dimensional random bond Ising model, show that reentrant ...
Katzgraber, Helmut G. +1 more
core +3 more sources
Unitary Matrix Models with a topological term and discrete time Toda equation [PDF]
, 1996 We study the full unitary matrix models. Introducing a new term $l log U$, l plays the role of the discrete time. On the other hand, the full unitary matrix model contains a topological term. In the continuous limit it gives rise to a phase transition at
Bowick +11 more
core +2 more sources
The effect of the Caputo fractional difference operator on a new discrete COVID-19 model
Results in Physics, 2022 This study aims to generalize the discrete integer-order SEIR model to obtain the novel discrete fractional-order SEIR model of COVID-19 and study its dynamic characteristics.
Abderrahmane Abbes +3 more
doaj +1 more source
Performance analysis of rectangular SIT (sediment invert trap) for stormwater drainage system
Journal of Hydrology and Hydromechanics, 2022 Deposition of solid particles in the stormwater sewers reduces the discharging capacity, causing inundation. A sediment invert trap (SIT) is an option that can be installed at the bottom of the stormwater sewer drain to intercept the flowing solid ...
Beg Salman, Kaushal Deo Raj
doaj +1 more source
A Wigner distribution function for finite oscillator systems [PDF]
, 2013 We define a Wigner distribution function for a one-dimensional finite quantum system, in which the position and momentum operators have a finite (multiplicity-free) spectrum. The distribution function is thus defined on discrete phase-space, i.e.
Van der Jeugt, Joris
core +2 more sources
On the phase diagram of the discrete Z6spin models [PDF]
Journal of Physics A: Mathematical and General, 1999 10 pages, Latex 2e, 4 figures, uses epsf, amssymb ...
DOREY P +3 more
openaire +4 more sources
Inventions, 2021 The aim of this study is the aerodynamic degradation of a three-bladed Horizontal Axis Wind Turbine (HAWT) under the influence of a hailstorm. The importance and originality of this study are that it explores the aerodynamic performance of an optimum ...
Dimitra Douvi +2 more
doaj +1 more source