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检索条件"主题词=numerical integration methods"
46 条 记 录,以下是1-10 订阅
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Comparative Implementation of numerical integration methods for Transient Stability Constrained Optimal Power Flow
Comparative Implementation of Numerical Integration Methods ...
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IEEE International Conference on Environment and Electrical Engineering (EEEIC) / IEEE Industrial and Commercial Power Systems Europe (ICPS Europe)
作者: Arredondo, Francisco Daniel Castronuovo, Edgardo Ledesma, Pablo Leonowicz, Zbigniew Univ Carlos III Madrid Dept Elect Engn Leganes Spain Wroclaw Univ Sci & Technol Fac Elect Engn Wroclaw Poland
Transient Stability Constrained Optimal Power Flow (TSCOPF) is a non-linear mathematical programming problem that optimizes the operation of power systems considering steady state and dynamic constrains. TSCOPF models... 详细信息
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On numerical improvement of the Second Kind of Gauss-Chebyshev quadrature rules
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APPLIED MATHEMATICS AND COMPUTATION 2005年 第1期168卷 431-446页
作者: Dehghan, M Masied-Jamei, M Eslahchi, MR Amirkabir Univ Technol Dept Appl Math Fac Math & Comp Sci Tehran Iran KN Toosi Univ Technol Dept Math Tehran Iran Minist Sci Res & Technol Ctr Res & Studies Sanjesh Org Tehran Iran
One of the integration methods is the Second Kind of Gauss-Chebyshev quadrature rule, denoted by: integral(1)(-1) f(x)root 1-x(2)dx = pi/n+1 Sigma(n)(k=1)sin(2)(k pi/n+1)f(cos(k pi/n+1)) + n/2(2n+1)(2n)! f((2n))(eta),... 详细信息
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A note on equal coefficient quadrature rules
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APPLIED MATHEMATICS AND COMPUTATION 2006年 第1期180卷 153-159页
作者: Hashemiparast, S. M. Eslahchi, M. R. Dehghan, Mehdi Amirkabir Univ Technol Fac Math & Comp Sci Dept Appl Math Tehran Iran KN Toosi Univ Technol Dept Math Tehran Iran Management & Planning Org Tehran Iran
In this paper we introduce an integration method with equal coefficient in the following form: integral(b)(a) w(x)f(x)dx similar or equal to C-n Sigma(n)(i=1) f (x(i)). Then by using the formulas of Newton's equat... 详细信息
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Modeling and analysis of fit clearance between rolling bearing outer ring and housing
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JOURNAL OF SOUND AND VIBRATION 2019年 438卷 419-440页
作者: Chen, Guo Qu, Meijiao Nanjing Univ Aeronaut & Astronaut Coll Civil Aviat Nanjing Jiangsu Peoples R China
In the assembly and using the process of the rolling bearings in high-speed rotating machines, including aero-engines. Because the change of the bearing temperature and prestressing force of installation, there will i... 详细信息
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Comparison of the trapezoidal rule error with the spline rule error
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APPLIED MATHEMATICS AND COMPUTATION 2006年 第2期183卷 1256-1261页
作者: Ivaz, K. Taghvafard, H. Univ Tabriz Dept Math Tabriz Iran
We consider the trapezoidal rule and the spline rule and obtain the error formula for the spline rule. Finally, we compare the error of this two methods. (c) 2006 Elsevier Inc. All rights reserved.
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On numerical improvement of the first kind Gauss-Chebyshev quadrature rules
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APPLIED MATHEMATICS AND COMPUTATION 2005年 第1期165卷 5-21页
作者: Eslahchi, MR Dehghan, M Masied-Jamei, M Amirkabir Univ Technol Fac Math & Comp Sci Dept Appl Math Tehran 15914 Iran Minist Sci Res & Technol Sanjesh Org Ctr Res & Studies Tehran Iran
One of the integration methods of the equality type is Gauss-Chebyshev quadrature rule, which is in the following form: integral(-1)(1) f(x)/root 1-x(2) dx = pi/n (n)Sigma(k=1)f (cos ((2k - 1)pi/2n)) + 2 pi/2(2n)(2n)!... 详细信息
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On numerical improvement of Open Newton-Cotes quadrature rules
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APPLIED MATHEMATICS AND COMPUTATION 2006年 第1期175卷 618-627页
作者: Dehghan, Mehdi Masjed-Jamei, M. Eslahchi, M. R. Amirkabir Univ Technol Fac Math & Comp Sci Dept Appl Math Tehran Iran KN Toosi Univ Technol Dept Math Tehran Iran Management & Planning Org Tehran Iran
In this paper, we discuss about numerical improvement of the Open Newton-Cotes integration rules that are in forms of: integral(b=xn+1=x-1+(n+2)h)(a=x-1) f(x)dx similar or equal to Sigma(n)(k=0)B(k)((n))f(x-1 + (k + 1... 详细信息
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Frequency warping in time-domain circuit simulation
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS 2003年 第7期50卷 904-913页
作者: Brambilla, A Storti-Gajani, G Politecn Milan Dipartimento Elettr & Informaz I-20133 Milan Italy
Time-domain simulation of dynamic circuits and, in general, of any physical model characterized by ordinary differential equations or differential algebraic equations, implies the use of so me numerical integration me... 详细信息
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Stability preserving integration of index-2 DAEs
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APPLIED numerical MATHEMATICS 2003年 第2-3期45卷 201-229页
作者: Higueras, I März, R Tischendorf, C Humboldt Univ Inst Math D-10099 Berlin Germany Univ Publ Navarra Dept Matemat & Informat Pamplona 31006 Spain
For linear index-2 DAEs with properly stated leading term we characterize contractive and dissipative flows. We study under which conditions the qualitative properties of the DAE solutions are reflected by the numeric... 详细信息
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Grid Size Adapted Multistep methods for High Q Oscillators
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IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS 2013年 第11期32卷 1682-1693页
作者: Brachtendorf, Hans Georg Bittner, Kai University of Applied Sciences of Upper Austria Austria
The numerical calculation of the limit cycle of oscillators with resonators exhibiting a high-quality factor Q such as quartz crystals is a difficult task in the time domain. Time domain integration formulas, when not... 详细信息
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