Results 41 to 50 of about 69,208 (361)
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
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Multiscale simulation of non-isothermal microchannel gas flows [PDF]
, 2014 This paper describes the development and application of an efficient hybrid continuum-molecular approach for simulating non-isothermal, low-speed, internal rarefied gas flows, and its application to flows in Knudsen compressors.
Patronis, Alexander, Lockerby, Duncan A.
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A space-time multiscale method for parabolic problems
, 2022 We present a space-time multiscale method for a parabolic model problem with an underlying coefficient that may be highly oscillatory with respect to both the spatial and the temporal variables.
Ljung, Per +6 more
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Image-based Multiscale Shape Description using Gaussian Filter [PDF]
, 2008 In shape recognition, a multiscale description provides more information about the object, increases discrimination power and immunity to noise. In this paper, we develop a new multiscale Fourier-based object description in 2-D space using a low-pass ...
Cem Direkoglu +3 more
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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
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Coarse-grained modeling of multiscale diffusions : the p-variation estimates [PDF]
, 2010 We study the problem of estimating parameters of the limiting equation of a multiscale diffusion in the case of averaging and homogenization, given data from the corresponding multiscale system.
Papavasiliou, Anastasia +1 more
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Multiscale methods for the segmentation of images [PDF]
1996 IEEE International Conference on Acoustics, Speech, and Signal Processing Conference Proceedings, 2002 This work presents a method for segmenting images based on gradients in the intensity function. Past approaches have centered on formulating the problem in the context of variational calculus as the minimization of a functional involving the image intensity and edge functions.
Michael K. Schneider +3 more
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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
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An automated multiscale ensemble simulation approach for vascular blood flow [PDF]
, 2015 Cerebrovascular diseases such as brain aneurysms are a primary cause of adult disability. The flow dynamics in brain arteries, both during periods of rest and increased activity, are known to be a major factor in the risk of aneurysm formation and ...
Itani, MA +18 more
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On multiscale methods in Petrov–Galerkin formulation [PDF]
Numerische Mathematik, 2015 In this work we investigate the advantages of multiscale methods in Petrov-Galerkin (PG) formulation in a general framework. The framework is based on a localized orthogonal decomposition of a high dimensional solution space into a low dimensional multiscale space with good approximation properties and a high dimensional remainder space{, which only ...
Daniel Elfverson +2 more
openaire +3 more sources