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numerical efficiency
相关语句
  计算效率
     (2) When a traditional explicit finite-difference time-domain (FDTD) method is used, fine geometric details dictate a small time step due to the Courant-Friedrichs-Lewy stability condition, which in turn could require an excessively large number of computation steps and significantly degrade the numerical efficiency.
     2)FDTD分析一些细小电磁结构时,受到CFL稳定性的约束,随着空间网格的不断变小,时间步长相应减小,在系统响应时间不变的情况下,所需时间步数成倍增长,计算时间随之猛增,这使得FDTD的计算效率明显下降。
短句来源
     In this thesis the alternating-direction-implicit (ADI) scheme is introduced to eliminate the courant stability condition of traditional FDTD method by combining implicit difference equations with explicit ones. The ADI-FDTD is unconditionally stable and the size of the time step is based only on the desired accuracy so that the numerical efficiency is largely enhanced.
     本文研究了基于变方向的隐式ADI—FDTD方法,通过将显式差分和隐式差分的结合使用,可以获得算法本身的绝对稳定性,从而摆脱了CFL稳定性条件的限制,可以在一定程度上增大时间步长,提高计算效率
短句来源
     For nonhomogeneous materials, FEM with nonhomogeneous elments improves numerical efficiency and accuracy compared to the traditional FEM.
     对于非均匀材料,本方法较传统有限元方法提高了计算效率和精度。
短句来源
  “numerical efficiency”译为未确定词的双语例句
     Numerical efficiency hill chart prediction for a complete Francis turbine
     混流式水轮机效率的数值预测
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     For Algorithm NTR2, we examine the sensitivity of the algorithm on the parameters, such as M, which related to the nonmonotone technique and the initial trust region radius △_0 . We show that the numerical efficiency of NTR algorithm can be improved by choosing appropriate parameters.
     对于更有效的算法NTR2,我们讨论了算法对于其输入参数M,以及初始信赖域半径△_0的敏感度。 通过选取适当的参数,我们可以提高算法的数值效率。
短句来源
     This algorithm can improve numerical efficiency and accuracy, solve SFS and heightrecovery problems in eye image, and is much faster than fast sweeping method incomplicated situations.
     方法较原快速步进法和分组步进法速度快,较基于日历队列快速步进法误差小,且在处理复杂情形时,比快速扫描法速度快。
短句来源
     The numerical efficiency of this method allows the advanced sophisticated synthesis procedures with the advanced optimization algorithms and the computer aided design of the waveguide circuits even the other microwave or millimeter-wave circuits performed on personal computer.
     模式分析程序的快速和高效,使得它可以配合现代各种优化算法进行波导电路甚至其它微波毫米波电路的计算机辅助设计。
短句来源
     This paper analyses the key factors of affecting the parallel efficiency of multigrid algorithms under Network of Workstations (NOWs), and proposes the improvements in parallel efficiency and numerical efficiency owing to Schwarz parallelizations. Moreover, the improvements are applied to SPD elliptical equations, interface problems, Stokes equations, incompressible Navier Stokes equations with high Reynolds number, and three dimensional transonic Euler equations, and many useful conclusions are surveyed.
     分析了工作站网络环境(NOWs)下并行多重网格计算中阻碍并行效率发挥的关键因素,分析了Schwarz并行对并行效率和数值效率的影响,总结了将其应用到求解SPD椭圆方程、间断问题、stokes方程、高Reynolds不可压Navier-Stokes方程和三维跨声速Euler方程中所取得的重要结论。
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     Numerical results demonstrate its efficiency.
     数值结果表明了该方法的有效性
短句来源
     On Efficiency
     论效率
短句来源
     efficiency.
     程序公正与实体公正并重:效率。
短句来源
     Numerical results show the efficiency of the algorithm.
     数值算例表明该方法能够有效地消除这种奇异性,最终给出高精度的数值结果.
短句来源
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  numerical efficiency
The time-domain theory is based on canonical functions defined in terms of inverse trigonometric and algebraic functions, which ensures its numerical efficiency.
      
Through a discretization of boundary integral equations, we prove the numerical efficiency of our method by solving three problems.
      
An energy method is adopted to calculate the instantaneous, local friction force leading to better insight into the problem as well as higher numerical efficiency.
      
The well-known binomial and trinomial tree models for option pricing are examined from the point of view of numerical efficiency.
      
Compared with conventional approaches like mode matching as well as with other numerical methods, the presented three-dimensional (3D) method shows individual advantages like accuracy, simplicity, and numerical efficiency.
      
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The model of structural p-adaptive analysis is constructed by the use of object-orientedmodeling technology (OMT). The object-oriented p-adaptive analysis system is described with theobject model and function model, and its analysis, design and implementation are also discussed. Thecomputational results show that the system has good numerical efficiency and accuracy, goodextendibility and code reusability with the help of OMT.

采用面向对象建模技术建立了结构p自适应分析模型.提出用对象模型和功能模型来描述面向对象的p自适应分析系统,并探讨系统分析、设计和实现.计算结果表明系统具有良好的计算效率和计算精度.面向对象建模技术使系统具有良好扩展性和代码重用性.

This paper analyses the key factors of affecting the parallel efficiency of multigrid algorithms under Network of Workstations (NOWs), and proposes the improvements in parallel efficiency and numerical efficiency owing to Schwarz parallelizations. Moreover, the improvements are applied to SPD elliptical equations, interface problems, Stokes equations, incompressible Navier Stokes equations with high Reynolds number, and three dimensional transonic Euler equations, and many useful conclusions are surveyed....

This paper analyses the key factors of affecting the parallel efficiency of multigrid algorithms under Network of Workstations (NOWs), and proposes the improvements in parallel efficiency and numerical efficiency owing to Schwarz parallelizations. Moreover, the improvements are applied to SPD elliptical equations, interface problems, Stokes equations, incompressible Navier Stokes equations with high Reynolds number, and three dimensional transonic Euler equations, and many useful conclusions are surveyed.

分析了工作站网络环境(NOWs)下并行多重网格计算中阻碍并行效率发挥的关键因素,分析了Schwarz并行对并行效率和数值效率的影响,总结了将其应用到求解SPD椭圆方程、间断问题、stokes方程、高Reynolds不可压Navier-Stokes方程和三维跨声速Euler方程中所取得的重要结论。

A numerical distributed transfer function method (NDTFM) is introduced for the analysis of state space equations of distributed parameter systems with variable coefficients. The method is the extension of DTFM (distributed transfer function method), and it is easy to use for various physical mathematical problems with variable parameters. Wedge beam is analyzed using this method, and a general element is derived to raise numerical efficiency. Numerical results show that this method is efficient...

A numerical distributed transfer function method (NDTFM) is introduced for the analysis of state space equations of distributed parameter systems with variable coefficients. The method is the extension of DTFM (distributed transfer function method), and it is easy to use for various physical mathematical problems with variable parameters. Wedge beam is analyzed using this method, and a general element is derived to raise numerical efficiency. Numerical results show that this method is efficient and easy to use.

本文在对一阶变系数微分方程组的数值解分析的基础上, 提出了一种数值传递函数方法, 作为对传递函数方法的一种直接推广。利用这种方法可以很方便地把传递函数方法扩展到各种变系数微分方程问题, 本文以变截面梁为例进行了讨论, 并建立了一种通用单元以减少计算。数值算例表明本方法具有精度高、应用灵活的特点。

 
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