Results 31 to 40 of about 214,531 (335)
Mathematics, 2023 We propose a generalized multiscale finite element method combined with a balanced truncation to solve a parameter-dependent parabolic problem. As an updated version of the standard multiscale method, the generalized multiscale method contains the ...
Shan Jiang +3 more
doaj +1 more source
Multiscale lattice Boltzmann approach to modeling gas flows [PDF]
, 2010 For multiscale gas flows, kinetic-continuum hybrid method is usually used to balance the computational accuracy and efficiency. However, the kinetic-continuum coupling is not straightforward since the coupled methods are based on different theoretical ...
E. F. TORO +6 more
core +2 more sources
Mathematical analysis of transmission properties of electromagnetic meta-materials
Networks and Heterogeneous Media, 2019 We study time-harmonic Maxwell's equations in meta-materials that use either perfect conductors or high-contrast materials. Based on known effective equations for perfectly conducting inclusions, we calculate the transmission and reflection coefficients ...
Mario Ohlberger +3 more
doaj +1 more source
Entropy, 2021 Wind turbine gearboxes operate in harsh environments; therefore, the resulting gear vibration signal has characteristics of strong nonlinearity, is non-stationary, and has a low signal-to-noise ratio, which indicates that it is difficult to identify wind
Xiaoan Yan +3 more
doaj +1 more source
Multiscale methods for macromolecular simulations [PDF]
Current Opinion in Structural Biology, 2008 In this article we review the key modeling tools available for simulating biomolecular systems. We consider recent developments and representative applications of mixed quantum mechanics/molecular mechanics (QM/MM), elastic network models (ENMs), coarse-grained molecular dynamics, and grid-based tools for calculating interactions between essentially ...
Sherwood, P, Brooks, B, Sansom, MS
openaire +2 more sources
Generalized multiscale finite element methods for wave propagation in heterogeneous media [PDF]
, 2013 Numerical modeling of wave propagation in heterogeneous media is important in many applications. Due to the complex nature, direct numerical simulations on the fine grid are prohibitively expensive.
Chung, Eric T. +2 more
core +3 more sources
The triple decomposition of a fluctuating velocity field in a multiscale flow [PDF]
, 2015 A new method for the triple decomposition of a multiscale flow, which is based on the novel optimal mode decomposition (OMD) technique, is presented. OMD provides low order linear dynamics, which fits a given data set in an optimal way and is used to ...
Baj, P, Bruce, PJK, Buxton, ORH
core +1 more source
Stress intensity factor analysis of epoxy/SWCNTs based on global-local multiscale method
Science and Engineering of Composite Materials, 2014 Carbon nanotube (CNT) is considered as a new generation of material possessing superior mechanical, thermal, and electrical properties. In this research, a multiscale finite element analysis is proposed to study the interaction between nanotubes and ...
Hemmatian Hossein +2 more
doaj +1 more source
Rolling Bearing Fault Diagnosis Based on VMD-MPE and PSO-SVM
Entropy, 2021 The goal of the paper is to present a solution to improve the fault detection accuracy of rolling bearings. The method is based on variational mode decomposition (VMD), multiscale permutation entropy (MPE) and the particle swarm optimization-based ...
Maoyou Ye, Xiaoan Yan, Minping Jia
doaj +1 more source
Multiscale discontinuous Petrov–Galerkin method for the multiscale elliptic problems [PDF]
Numerical Methods for Partial Differential Equations, 2017 In this article, we present a new multiscale discontinuous Petrov–Galerkin method (MsDPGM) for multiscale elliptic problems. This method utilizes the classical oversampling multiscale basis in the framework of a Petrov–Galerkin version of the discontinuous Galerkin method, allowing us to better cope with multiscale features in the solution.
Fei Song, Weibing Deng
openaire +3 more sources