Results 91 to 100 of about 36,810,401 (291)

An Empirical Method for Particle Damping Design

open access: yesShock and Vibration, 2004
Particle damping is an effective vibration suppression method. The purpose of this paper is to develop an empirical method for particle damping design based on extensive experiments on three structural objects – steel beam, bond arm and bond head stand ...
Zhi Wei Xu, K.W. Chan, W.H. Liao
doaj   +1 more source

The Gap-Tooth Method in Particle Simulations

open access: yes, 2003
We explore the gap-tooth method for multiscale modeling of systems represented by microscopic physics-based simulators, when coarse-grained evolution equations are not available in closed form.
C.William Gear   +19 more
core   +1 more source

A Hybrid Reproducing Kernel Particle Method for Three-Dimensional Helmholtz Equation

open access: yesMathematics
The reproducing kernel particle method (RKPM) is one of the most universal meshless methods. However, when solving three-dimensional (3D) problems, the computational efficiency is relatively low because of the complexity of the shape function.
Piaopiao Peng, Ning Wang, Yumin Cheng
doaj   +1 more source

Portfolio optimization using particle swarm optimization method [PDF]

open access: yesتحقیقات مالی, 2010
The Markowitz’s optimization problem is considered as a standard quadratic programming problem that has exact mathematical solutions. Considering real world limits and conditions, the portfolio optimization problem is a mixed quadratic and integer ...
Reza Raei, Hedayat Alibeiki
doaj  

Method accurately measures mean particle diameters of monodisperse polystyrene latexes [PDF]

open access: yes, 1967
Photomicrographic method determines mean particle diameters of monodisperse polystyrene latexes. Many diameters are measured simultaneously by measuring row lengths of particles in a triangular array at a glass-oil interface.
Kubitschek, H. E.
core   +1 more source

Influence of spheroidal particle shape on particle size characterization by multi-wavelength light extinction method

open access: yesResults in Physics, 2018
In order to improve the applicability, spheroidal particles are substituted for the spherical particles in the traditional modeling of multi-wavelength light extinction method.
Yi Zhou   +4 more
doaj   +1 more source

Lattice Boltzmann method used to simulate particle motion in a conduit

open access: yesJournal of Hydrology and Hydromechanics, 2017
A three-dimensional numerical simulation of particle motion in a pipe with a rough bed is presented. The simulation based on the Lattice Boltzmann Method (LBM) employs the hybrid diffuse bounce-back approach to model moving boundaries.
Dolanský Jindřich   +3 more
doaj   +1 more source

A unified approach for static and dynamic fracture failure in solids and granular materials by a particle method

open access: yesFracture and Structural Integrity, 2015
The material structure at the microscale reveals the particulate nature of solids. By exploiting the discrete aspect of materials, the so-called particle methods developed and applied to the simulation of solids and liquids have attracted the attention ...
Roberto Brighenti   +2 more
doaj  

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