Results 31 to 40 of about 3,392,118 (219)

Free Vibration Analysis of Tapered Rayleigh Beams resting on Variable Two-Parameter Elastic Foundation

open access: yesForces in Mechanics, 2023
This study aims at analyzing the effect of variable foundation parameters on the natural frequencies of a prestressed tapered Rayleigh beam having general elastically restrained ends.
Olanrewaju T. Olotu   +2 more
doaj   +1 more source

Simulation of a parabolic trough solar collector containing hybrid nanofluid and equipped with compound turbulator to evaluate exergy efficacy and thermal‐hydraulic performance

open access: yesEnergy Science & Engineering, 2022
This research is mainly aimed at investigating the numerical modeling of thermal‐hydraulic and exergy efficiencies of parabolic trough solar collectors (P‐SCs) filled with magnetic hybrid nanofluid.
Yacine Khetib   +5 more
doaj   +1 more source

An Anisotropic Damage Model of Quasi-Brittle Materials and Its Application to the Fracture Process Simulation

open access: yesApplied Sciences, 2022
Accurate predictions of the failure behaviors of quasi-brittle materials are of practical significance to underground engineering. In this work, a novel anisotropic damage model is proposed based on continuous damage mechanics.
Haijing Wang   +5 more
doaj   +1 more source

Dual Allosteric Effect in Glycine/NMDA Receptor Antagonism: A Comparative QSAR Approach

open access: yesPharmaceuticals, 2010
A comparative Hantzsch type QSAR study was conducted using multiple regression analysis on various sets of quinoxalines, quinoxalin-4-ones, quinazoline-2-carboxylates, 4-hydroxyquinolin-2(1H)-ones, 2-carboxytetrahydroquinolines, phenyl-hydroxy-quinolones,
Vipin B. Gupta, Manish Sharma
doaj   +1 more source

Higher-order finite-difference methods for partial differential equations [PDF]

open access: yes, 1997
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis develops two families of numerical methods, based upon rational approximations having distinct real poles, for solving first- and second-order ...
Cheema, Tasleem Akhter
core   +7 more sources

Mesoscopic Moment Equations for Heat Conduction: Characteristic Features and Slow–Fast Mode Decomposition

open access: yesEntropy, 2018
In this work, we derive different systems of mesoscopic moment equations for the heat-conduction problem and analyze the basic features that they must hold.
Luca Bergamasco   +5 more
doaj   +1 more source

A mode parabolic equations method with the resonant mode interaction

open access: yes, 2014
A mode parabolic equation method for resonantly interacted modes was developed. The flow of acoustic energy is conserved for the derived equations with an accuracy adequate to the used approximation. The testing calculations were done for ASA wedge benchmark and proved excellent agreement with COUPLE program.
Trofimov, M. Yu.   +2 more
openaire   +2 more sources

Control Problem Concerned With the Process of Heating a Thin Plate

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2023
Previously, a mathematical model for the following problem was considered. On a part of the border of the right rectangle there is a heater with controlled temperature.
Dekhkonov, F.N.
doaj   +1 more source

Scattering of e Polarized Whispering-Gallery mode from Concave Boundary

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2012
In this work we present numerical results for the 2D problem of scattering E polarised whispering-gallery mode from concave convex perfectly conducting boundary.
Alexander P. Anyutin, V.I. Stasevich
doaj   +1 more source

Phase sensitivity of spatially broadband high-gain SU(1,1) interferometers

open access: yesPhysical Review Research, 2023
Nonlinear interferometers are promising tools for quantum metrology, as they are characterized by an improved phase sensitivity scaling compared to linear interferometers operating with classical light.
D. Scharwald, T. Meier, P. R. Sharapova
doaj   +1 more source

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