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computational implementation
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  计算实现
     Computational implementation of global optimization of anti-seismic design for multilevel hierarchical engineering systems
     多级递阶工程系统抗地震设计整体优化的计算实现
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  “computational implementation”译为未确定词的双语例句
     A Theoretical Method of Character Slater Determinant CI and its Computational Implementation
     特征组态相互作用理论方法及程序的实现
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     Recently, with the development of the computational implementation and the theoretical analysis of delay system, it’s shown that it would be more efficient to use DIDEs to simulate practical problems in the science engineering.
     近年来,随着延迟系统理论与计算技术的高速发展,人们发现科学工程中的许多问题用延迟积分微分方程(DIDEs)来模拟具有更佳的效果。
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     For aiming at the application of the seismic data processing, several basic time-frequency representations are presented entirely. The original derivation, basic principle and the computational implementation of S transform(ST) are introduced in detail.
     该文从地震资料处理的应用需要出发,在比较全面地研究了几种基本的时频分析方法的基础上,详细论述了S变换的思想来源,基本原理和运算实现。
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     In Chapter 2, we mainly introduce the density functional theory (DFT) as well as some popular ab initio software packages, which are our theoretical foundation and computational implementation to deal with the issues discussed in this thesis.
     在第二章中,我们介绍了密度泛函理论的内涵及其发展状况,以及常用的从头计算软件包,这些构成了本论文研究的理论基础和工具。
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     Abstract A computational implementation of Broyden family of variable metric methods was presented, in which the parameter θ had distinct valurs at various iterations and θ was made less than zero as far as possible Numerical resultsof solving some test problems by the algorithms with a few schemes for selecting θand the BFGS method were given for comparison to demonstrate that the algorithmis efficient for unconstrained optimization problems
     提出了Broyden族变尺度法的一种新的计算机实现方法,其中,参数θ在不同迭代中取不同的值,并尽量满足θ<0提出了参数θ的几种选取规则,并给出利用不同选取规则形成的不同算法求解典型例题的计算结果,与BFGS法比较,说明新方法是一种有效的求解无约束最优化问题的算法
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     The Research and Implementation of Grid Computational Portal
     网格计算门户的研究与实现
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     The Design And Implementation of Computational Grid Portal
     计算网格Portal的设计与实现
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     implementation And Application.
     本文简要地介绍了虚拟存储的概念、分类、实现过程及其应用。
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     T,describes the implementation of S.M.
     M.
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     COMPUTATIONAL MANUFACTURING
     计算制造
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  computational implementation
Details of computational implementation and results are provided.
      
The basic problem with such conditions involves the computational implementation of the derived results.
      
This new "general-s" formalism is found to be highly suitable for a computational implementation, and the technical details of this implementation are given.
      
I describe in detail a computational implementation which has worked reasonably well in practice.
      
This paper describes the formulation of a nonlinear mixed integer programming model for a large-scale product development and distribution problem and the design and computational implementation of a special purpose algorithm to solve the model.
      
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A new method called Character Slater Determinant CI(CDCI) and its computational implementation are presented in order to simplify electron correlation calculation. The accuracy and reliability of the present method are tested with several diatomic molecules and atoms. The calculational accuracy is comparable to the CISD method of G94,indicating that the method is acceptable and the correspondent program is accurate. On the other hand,the present method results in molecular properties(bong lengths,bond...

A new method called Character Slater Determinant CI(CDCI) and its computational implementation are presented in order to simplify electron correlation calculation. The accuracy and reliability of the present method are tested with several diatomic molecules and atoms. The calculational accuracy is comparable to the CISD method of G94,indicating that the method is acceptable and the correspondent program is accurate. On the other hand,the present method results in molecular properties(bong lengths,bond energies and force constants) that are considerably closer to experimental values than those obtained with Hartree-Fock SCF method.

特征组态相互作用理论方法及程序的实现周泰锦,莫亦荣,孟辉,张鸿斌(物理化学研究所固体表面物理化学国家重点实验室)有关原子簇化合物,结构多面体及化学吸附,过渡态、激发态、反应动力学,催化反应等的量子化学研究,对于探讨化学反应过程,研究反应机理,验证反应...

Abstract A computational implementation of Broyden family of variable metric methods was presented, in which the parameter θ had distinct valurs at various iterations and θ was made less than zero as far as possible Numerical resultsof solving some test problems by the algorithms with a few schemes for selecting θand the BFGS method were given for comparison to demonstrate that the algorithmis efficient for unconstrained optimization problems

提出了Broyden族变尺度法的一种新的计算机实现方法,其中,参数θ在不同迭代中取不同的值,并尽量满足θ<0提出了参数θ的几种选取规则,并给出利用不同选取规则形成的不同算法求解典型例题的计算结果,与BFGS法比较,说明新方法是一种有效的求解无约束最优化问题的算法

The unified strength theory is completely a new system of yield and failure of materials under the complex stress state. It embraces many well established criteria as its special or asymptotic cases, such as the Tresca (1864), the Mises (1913), and the Mohr Coulomb (lower bound,1900), as well as the twin shear strength theory ( upper bound, Yu 1985). The unified strength theory forms an entire spectrum of convex and non convex criteria, which can be used to describe many kinds of engineering materials. It...

The unified strength theory is completely a new system of yield and failure of materials under the complex stress state. It embraces many well established criteria as its special or asymptotic cases, such as the Tresca (1864), the Mises (1913), and the Mohr Coulomb (lower bound,1900), as well as the twin shear strength theory ( upper bound, Yu 1985). The unified strength theory forms an entire spectrum of convex and non convex criteria, which can be used to describe many kinds of engineering materials. It has been studied and applied in the researches of applied mechanics and analyses of engineering structures. Various criteria of the unified strength theory are the piecewise linear criteria. The forms of limit surface of the unified strength theory are angular. A single smooth surface can be developed to approximate to all the piecewise linear criteria of the unified strength theory. However, the non linear mathematical expressions of the smooth curves are difficult for application to analytic solution of plastic analysis of structures. The piecewise linear expressions of the unified strength theory are convenient for analytic solution of the plastic problems. The singularity at the corners of the unified strength theory has been overcome by using a simple and unified manner. It is convenient for computational implementation.

统一强度理论于 1991年发表以来 ,在国内外得到进一步深入研究和推广应用。在统一强度理论推广为塑性应力应变本构关系时会遇到角点奇异性问题 ,即分段线性屈服面交点或相交角隅的塑性应变增量的方向和大小的唯一性问题。本文采用一种矢量平均的统一处理方法 ,合理而简便地解决了角点奇异性问题。它具有简明的物理和数学概念 ,合理的结果 ,并可以统一处理 ,较国外对 Mohr- Coulomb理论的角点处理方法更为合理和适用。

 
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