Results 1 to 10 of about 1,337,014 (284)

Tensor renormalization group study of (3+1)-dimensional ℤ2 gauge-Higgs model at finite density [PDF]

open access: yesJournal of High Energy Physics, 2022
We investigate the critical endpoints of the (3+1)-dimensional ℤ2 gauge-Higgs model at finite density together with the (2+1)-dimensional one at zero density as a benchmark using the tensor renormalization group method.
Shinichiro Akiyama, Yoshinobu Kuramashi
doaj   +2 more sources

High Accuracy Spline Explicit Group (SEG) Approximation for Two Dimensional Elliptic Boundary Value Problems. [PDF]

open access: yesPLoS ONE, 2015
Over the last few decades, cubic splines have been widely used to approximate differential equations due to their ability to produce highly accurate solutions.
Joan Goh, Norhashidah Hj M Ali
doaj   +2 more sources

Calculation of critical index $\eta$ of the $\varphi^3$-theory in 4-loop approximation by the conformal bootstrap technique [PDF]

open access: yes, 2015
The method of calculation of $\varepsilon$-expansion in model of scalar field with $\varphi^3$-interaction based on conformal bootstrap equations is proposed.
Pismensky, Artem L
core   +2 more sources

An unconditionally stable implicit difference scheme for 2D porous medium equations using four-point NEGMSOR iterative method

open access: yesITM Web of Conferences, 2018
In this paper, a numerical method has been proposed for solving several two-dimensional porous medium equations (2D PME). The method combines Newton and Explicit Group MSOR (EGMSOR) iterative method namely four-point NEGMSOR.
Jackel Vui Lung Chew, Sulaiman Jumat
doaj   +2 more sources

A Study on the Model of Detecting the Liquid Level of Sealed Containers Based on Kirchhoff Approximation Theory

open access: yesSensors, 2017
By simulating the sound field of a round piston transducer with the Kirchhoff integral theorem and analyzing the shape of ultrasound beams and propagation characteristics in a metal container wall, this study presents a model for calculating the echo ...
Bin Zhang   +4 more
doaj   +2 more sources

SIMPLIFIED MATHEMATICAL MODEL OF GROUP OF OVERHEAD POWER LINES MAGNETIC FIELD

open access: yesElectrical engineering & Electromechanics, 2020
Aim. The method for design of simplified mathematical model of the group of overhead power lines magnetic field allowing to reduce the number of conductors which are taken into account in the model and field and allowing to reduce the sensitivity of the ...
B. I. Kuznetsov   +2 more
doaj   +2 more sources

Chemical bond analysis for the entire periodic table: energy decomposition and natural orbitals for chemical valence in the four-component relativistic framework [PDF]

open access: yesMolecular Physics, 2023
The Energy Decomposition Analysis in combination with Natural Orbitals for Chemical Valence (EDA-NOCV) is a very powerful tool for the analysis of the chemical bonds.
Diego Sorbelli   +6 more
semanticscholar   +1 more source

Consistent combination of truncated-unity functional renormalization group and mean-field theory [PDF]

open access: yesPhysical review B, 2023
We propose a novel scheme for combining efficiently the truncated-unity functional renormalization group (TUFRG) and the mean-field theory. It follows a method of Wang, Eberlein and Metzner that uses only the two-particle irreducible part of the vertex ...
Song-Jin O
semanticscholar   +1 more source

Solving Multi-Group Reflected Spherical Reactor System of Equations Using the Homotopy Perturbation Method

open access: yesMathematics, 2022
The solution of the complex neutron diffusion equations system of equations in a spherical nuclear reactor is presented using the homotopy perturbation method (HPM); the HPM is a remarkable approximation method that successfully solves different systems ...
Mohammad Shqair   +2 more
doaj   +1 more source

Conirmatory Factor Analysis of Depression, Anxiety and Stress 21 (DASS 21) scale in a study on Occupational Health Psychology in Health Care Professionals from Anand, Gujarat [PDF]

open access: yesHealthline, 2023
Introduction: Conirmatory factor analysis (CFA) is a statistical technique to verify the factor structure of a set of observed variables. Objective: The study was conducted with an objective to study the psychometric properties of DASS 21 scale by ...
Deepak B Sharma, Himanshu Sharma
doaj   +1 more source

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