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检索条件"主题词=numerical algorithms"
1087 条 记 录,以下是391-400 订阅
排序:
Gradient-enhanced softening material models
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INTERNATIONAL JOURNAL OF PLASTICITY 2009年 第11期25卷 2094-2121页
作者: Poh, L. H. Swaddiwudhipong, S. Natl Univ Singapore Dept Civil Engn Singapore 119260 Singapore
Classical constitutive models exhibit strong mesh dependency during softening and the numerical responses tend towards perfectly brittle behavior upon mesh refinements. Such sensitivity can be avoided by adopting the ... 详细信息
来源: 评论
A Toeplitz algorithm for polynomial J-spectral factorization
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AUTOMATICA 2006年 第7期42卷 1085-1093页
作者: Zuniga, Juan Carlos Henrion, Didier CNRS LAAS F-31077 Toulouse France Czech Tech Univ Fac Elect Engn Dept Control Engn Prague 16627 Czech Republic
A block Toeplitz algorithm is proposed to perform the J-spectral factorization of a para-Hermitian polynomial matrix. The input matrix can be singular or indefinite, and it can have zeros along the imaginary axis. The... 详细信息
来源: 评论
SHAPE OFFSETS VIA LEVEL SETS
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COMPUTER-AIDED DESIGN 1993年 第3期25卷 154-162页
作者: KIMMEL, R BRUCKSTEIN, AM TECHNION ISRAEL INST TECHNOL DEPT COMP SCIIL-32000 HAIFAISRAEL
An algorithm for shape offsetting is presented that is based on level-set propagation. This algorithm avoids the topological problems encountered in traditional offsetting algorithms, and it deals with curvature singu... 详细信息
来源: 评论
EFFICIENT COMPUTATION OF HIGHER-ORDER CUMULANT TENSORS
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SIAM JOURNAL ON SCIENTIFIC COMPUTING 2018年 第3期40卷 A1590-A1610页
作者: Domino, Krzysztof Gawron, Piotr Pawela, Lukasz Polish Acad Sci Inst Theoret & Appl Informat Baltycka 5 PL-44100 Gliwice Poland
In this paper, we introduce a novel algorithm for calculating arbitrary order cumulants of multidimensional data. Since the dth order cumulant can be presented in the form of a d-dimensional tensor, the algorithm is p... 详细信息
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Early exercise policies of American floating strike and fixed strike lookback options
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NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS 2001年 第7期47卷 4591-4602页
作者: Yu, H Kwok, YK Wu, LX Natl Univ Singapore Sch Comp Dept Informat Syst Singapore 119260 Singapore Hong Kong Univ Sci & Technol Dept Math Hong Kong Hong Kong Peoples R China
Using appropriate similarity transform, we present the partial differential equation formulation of both floating strike and fixed strike American lookback option models. We examine the early exercise policies of the ... 详细信息
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Convex plastic potentials of fourth and sixth rank for anisotropic materials
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INTERNATIONAL JOURNAL OF PLASTICITY 2004年 第8-9期20卷 1505-1524页
作者: Van Houtte, P Van Bael, A Katholieke Univ Leuven Dept MTM B-3001 Heverlee Belgium
It is briefly reminded how the theory of dual plastic potentials has been used in the past to generate analytical expressions for plastic potentials of anisotropic polycrystalline materials with a known crystallograph... 详细信息
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Decrease of the effective Reynolds number with eddy-viscosity subgrid-scale modeling
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AIAA JOURNAL 2005年 第2期43卷 437-439页
作者: Bogey, C Bailly, C Ecole Cent Lyon CNRS UMR 5509 Lab Mecan Fluides & Acoust F-69134 Ecully France
The present simulations of jets illustrate the effects of sub-grid modelingbased on eddy viscosity in LES. The effective flow Reynolds number is found to be dramaticallydecreased using the dynamic Smagorinsky model, w... 详细信息
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Optimal Multiple-Impulse Circular Orbit Phasing
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JOURNAL OF GUIDANCE CONTROL AND DYNAMICS 2016年 第7期39卷 1675-+页
作者: Trofimov, Sergey P. Ovchinnikov, Mikhail Yu. Keldysh Inst Appl Math Spaceflight Mech & Control Dept 4 Miusskaya Pl Moscow 125047 Russia Keldysh Inst Appl Math Spaceflight Mech & Control Dept Attitude Control Syst & Orientat Div 4 Miusskaya Pl Moscow 125047 Russia
A study considers the fundamental problem of circular orbit phasing by performing a multiple-impulse maneuver. It is shown below that the peculiar properties of the considered problem allow a simpler procedure of find... 详细信息
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A control-based approach to the solution of nonlinear algebraic equations
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS 1997年 第4期44卷 366-369页
作者: Brambilla, A DAmore, D Dipartimento di Elettronica ed Informazione Politecnico di Milano Milan Italy Politecnico di Milano Milano Lombardia IT
A different approach to the solution of a nonlinear set of algebraic equations is presented. It is basically a revision of the Newton iterative algorithm from a digital control point of view, The Newton algorithm is c... 详细信息
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OSCILLATORY SHOCK MOTION CAUSED BY TRANSONIC SHOCK BOUNDARY-LAYER INTERACTION
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AIAA JOURNAL 1990年 第5期28卷 941-944页
作者: LEE, BHK National Research Council Ottawa Canada
A possible mechanism of the self-sustained shock-wave oscillation caused by unsteady transonic shock boundary-layer interaction on a supercritical airfoil with fully separated flow at the shock wave is illustrated. Th... 详细信息
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