Results 31 to 40 of about 44,657,267 (321)

Analysis of the Vibration Characteristics of Ballastless Track on Bridges Using an Energy Method

open access: yesApplied Sciences, 2020
Although the high-speed railway (HSR) system has been widely agreed to be a sustainable and convenient means of transportation, the vibration induced has already been deemed an urgent environmental problem.
Hanwen Jiang, Liang Gao
doaj   +1 more source

Accurate many-body electronic structure near the basis set limit: Application to the chromium dimer [PDF]

open access: yes, 2020
We describe a method for computing near-exact energies for correlated systems with large Hilbert spaces. The method efficiently identifies the most important basis states (Slater determinants) and performs a variational calculation in the subspace ...
Holmes, Adam A.   +6 more
core   +3 more sources

Li–He’s modified homotopy perturbation method coupled with the energy method for the dropping shock response of a tangent nonlinear packaging system

open access: yes, 2020
This paper couples Li–He’s homotopy perturbation method with the energy method to obtain an approximate solution of a tangent nonlinear packaging system.
Qiu Ji   +3 more
semanticscholar   +1 more source

IDENTIFICATION METHOD FOR PENDULUM SYSTEM MOMENT OF INERTIA WITH VISCOUS DAMPING [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2016
The paper proposes a method for identification of axial moment of inertia of the mechanical system called reaction wheel pendulum with a viscous friction in the bearings of the suspension. The method is based on the reversible symmetric motions. Pendulum
A. S. Alyshev   +2 more
doaj   +1 more source

Energy Minimization Methods [PDF]

open access: yes, 2011
Energy minimization methods are a very popular tool in image and signal processing. This chapter deals with images defined on a discrete finite set. Energy minimization methods are presented from a non classical standpoint: we provide analytical results on their minimizers that reveal salient features of the images recovered in this way, as a function ...
openaire   +2 more sources

Free Vibration of Tall Buildings using Energy Method and Hamilton’s Principle

open access: yes, 2020
In a framed-tube tall building, shear wall systems are the most efficient structural systems for increasing the lateral load resistance. A novel and simple mathematical model is developed herein which calculates the natural frequencies of such tall ...
Peyman Rahgozar
semanticscholar   +1 more source

Global existence of solutions to some semilinear integro-differential evolution equations with sign-varying kernels

open access: yesNonautonomous Dynamical Systems, 2020
In this paper, we study the global existence of solutions to some semilinear integro-differential evolution equations in Hilbert spaces with sign-varying kernels.
Jin Kun-Peng, Liang Jin, Xiao Ti-Jun
doaj   +1 more source

Dual-Topology Hamiltonian-Replica-Exchange Overlap Histogramming Method to Calculate Relative Free Energy Difference in Rough Energy Landscape [PDF]

open access: yes, 2006
A novel overlap histogramming method based on Dual-Topology Hamiltonian-Replica-Exchange simulation technique is presented to efficiently calculate relative free energy difference in rough energy landscape, in which multiple conformers coexist and are ...
Bitter-Putzer, Ryan   +4 more
core   +2 more sources

Mechanic properties analysis of quasi-square honeycomb sandwich structure′s core

open access: yesJournal of Hebei University of Science and Technology, 2017
In order to illustrate the relationship between the quasi-square-honeycomb structure and the hexagonal honeycomb structure, after decomposing the quasi-square honeycomb sandwich structure into unique T-shaped cell, the equivalent elastic constants ...
Guan TONG   +3 more
doaj   +1 more source

Single-Sweep Methods for Free Energy Calculations

open access: yes, 2007
A simple, efficient, and accurate method is proposed to map multi-dimensional free energy landscapes. The method combines the temperature-accelerated molecular dynamics (TAMD) proposed in [Maragliano & Vanden-Eijnden, Chem. Phys. Lett.
Eric Vanden-Eijnden   +2 more
core   +1 more source

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