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计算     
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  calculating
    A Simplified Method for Calculating the Free Vibrations of Cylindrical Shells
    圆柱壳自由振动的简化计算方法
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    A Practical Formula for Calculating J_(IC) with Single Specimen
    单试件测J_(IC)的实用计算公式
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    The ALGOL Program for Calculating the Lift Distribution on Wings with Control Surface in Subsonic Flow
    计算亚音速偏转操纵面机翼升力分布的ALGOL-60源程序
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    The ALGOL Program for calculating the Thickness Pressure Distributions of SupersonicWings
    计算超音速机翼厚度压强分布的算法语言程序
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    NUMERICAL METHODS FOR CALCULATING PRESSURE DISTRIBUTION IN GAS BEARING——NONLINEAR FINITE ELEMENT METHOD AND ITS ERROR ANALYSIS FOR SOLVING REYNOLDS EQUATION
    气体轴承压力的数值计算——求解Reynolds方程的非线性有限元及其误差分析
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  computation
    Computation of the Nonlinear Problem with a Single Parameter and Bifurcation Analysis of Reaction-Diffusion Equations
    单参数非线性问题高阶奇异点的计算及一类反应扩散方程组的分歧分析
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    The Principle of Information Diffusion and Thought Computation and Their Applications in Earthquake Engineering
    信息扩散原理与计算思维及其在地震工程中的应用
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    Analytic Solution Computation for Boussinesq Approximate and Equatorial Beta-plane Approximate Type Equations
    Boussinesq近似与赤道Beta-平面近似类方程组的解析解计算
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    I_(01) APPROXIMATION AND THE ROUND-OFF PROBLEM FOR COEFFICIENTS IN COMPUTATION OF POLYNOMIALS
    I_(01)逼近和多项式计算中的系数舍入
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    ON RANDOM CHOICE METHOD AND THE COMPUTATION OF UNSTEADY SHOCK WAVE
    关于随机选取法及其对不定常激波的计算
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  computing
    NEW EXPRESSIONS OF SOME INTEGRALS IN COMPUTING AXISYMMETRIC ELASTIC STRESS WITH THE TRlANGULAR RING ELEMENTS
    用有限元素法环形元素计算轴对称弹性体应力中一些积分的计算公式
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    The Computing of Finite Element Method for Three Dimensional Axisymmetrical Unsteady Temperature Fields.
    空间轴对称非稳定温度场有限单元法计算
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    The Method of Streamline-Iteration for Computing the Two-dimensional Viscous Flow
    计算二维粘性流动的流线迭代法
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    A DIRECT METHOD OF COMPUTING THE MOORE-PENROSE INVERSE OF A MATRIX
    计算Moore-Penrose广义逆矩阵的一种直接方法
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    An Efficient Algorithm for Computing the Zeros of Transcendental Functions in the Complex plane
    复平面上计算超越函数零点的一种有效算法
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  computational
    Study on Computational Methods for Two Typical Classes of Nonlinear Problems
    两类典型非线性问题的计算方法研究
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    Computational Problems from Multi-homogeneous Homotopy Continuation Method
    多齐次同伦连续方法中的计算问题
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    Research on Geotechnical Engineering and Project Network Planning Based on Computational Intelligence Methods
    基于计算智能方法的岩土工程与工程网络计划的应用研究
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    Statement and Review of the Mordern Computational Methods of Algebraic Eigenvalue Problems
    代数特征值问题现代计算方法述评
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    A Computational Method for Stability Analysis of Linear Control Systems
    判别线性定常系统稳定性的一种计算方法
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  calculating
The CoMFA analysis was performed by calculating steric and electrostatic interaction energies around a three dimensional grid.
      
The formulas for calculating such probabilities are deduced through analytical and probabilistic arguments respectively.
      
Note on calculating wiener numbers of molecular graphs with symmetry
      
The authors provided a simple method for calculating Wiener numbers of molecular graphs with symmetry in 1997.
      
The method for calculating the binding-site number in BSA for Indo-1 was developed based on the relationships between changes in Indo-1 fluorescence intensity and the analytical concentration of BSA.
      
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  computation
The Computation of Invariant Fields and a Constructive Version of a Theorem by Rosenlicht
      
Efficient computation of Fourier transforms on compact groups
      
This article genralizes the fast Fourier transform algorithm to the computation of Fourier transforms on compact Lie groups.
      
The basic technique uses factorization of group elements and Gel'fand-Tsetlin bases to simplify the computations, and may be extended to treat the computation of Fourier transforms of finitely supported distributions on the group.
      
Estimates, decay properties, and computation of the dual function for Gabor frames
      
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  computing
For modular representations the ring of invariants usually fails to be Cohen-Macaulay and computing the depth is often very difficult.
      
In particular, we prove an integral formula for the degree of an ample divisor on a variety of complexity 1, and apply this formula to computing the degree of a closed 3-dimensional orbit in any SL2-module.
      
Computing invariants of reductive groups in positive characteristic
      
This paper gives an algorithm for computing invariant rings of reductive groups in arbitrary characteristic.
      
We present an algorithm for computing the invariant field k(X)G.
      
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  computational
We provide a direct computational proof of the known inclusion ${\cal H}({\bf R} \times {\bf R}) \subseteq {\cal H}({\bf R}^2),$ where ${\cal H}({\bf R} \times {\bf R})$ is the product Hardy space defined for example by R.
      
The projectively adapted properties of theSL(2, ?)-harmonic analysis, as applied to the problems, in image processing, are confirmed by computational tests.
      
Like the lattice factorization, the decomposition presented here asymptotically reduces the computational complexity of the transform by a factor two.
      
Double coset decompositions and computational harmonic analysis on groups
      
In this article we develop analytical and computational tools arising from harmonic analysis on the motion group of three-dimensional Euclidean space.
      
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  其他


Two types of optimalizing control systems are analyzed and compared under random interferences. By means of approximation, the expectation values of hunting loss are calculated.

本文利用近似法求出两种极值調节系統在随机干扰影响下搜索損耗的数学期望,因而可以在具体条件下比較两种調节器的优缺点。在正态平稳随机干扰下,相关搜索法对較强的輸入端干扰是适宜的;反之,在較弱的輸入端干扰时,一般步进搜索法比較有利。計算結果也給出了在各种干扰强度下步进法的最佳步长及相关法的最佳搜索信号振幅,这些都是調节器的重要参数。

A simple calculation has been carried out for the absqrption coefficient of H-. The matrix component of transition is calculated from the combination of a free-electron wave function obtained by averaging the Hylleraas wave function for H- over the coordinates of one electron. The absorption coefficient covering a wide range of optical spectrum is in the order of 10-17 cm2.

本文根据波动力学计算H~-之吸收系数若H~-吸收较短於λ=17254A光线时,吾人应得一极宽连续光谱。依本文极简单计算,其系数大都在10~(-17)cm~2附近。

In the statistical theory of superlattices in binary alloys, the dependence of the interaction energy upon atomic arrangements is taken into account by regarding the interaction energy in Bethe's theory as an average quantity depending on the degree of order and the composition of the alloy. Two simple assumptions concerning the functional relationship of the interaction energy with order and composition are made. The first is a linear function of order and composition. The second is a linear function of the...

In the statistical theory of superlattices in binary alloys, the dependence of the interaction energy upon atomic arrangements is taken into account by regarding the interaction energy in Bethe's theory as an average quantity depending on the degree of order and the composition of the alloy. Two simple assumptions concerning the functional relationship of the interaction energy with order and composition are made. The first is a linear function of order and composition. The second is a linear function of the average numbers of pairs of atoms. The result of applying these assumptions to superlattices of the type AB is that the critical temperature as a function of the composition is a maximum for equal sumber of A and B atoms only when a certain relation between the coefficients in the assumed function is satisfied. In the cass of superlattices of type AB3 the theory of Bragg and Williams is used for simplicity. It is shown that when the composition varies, the maximum of the critical temperature may occur at any desired composition by a suitables adjustment of the coefficients in the assumed functions. There is thus a hope of removing the discrepancy between theory and experiment on this line. The anomalous specific heat at the critical temperature is also calculated for different compositions. In the case of the AB type of superlattices, Bethe's formula for the energy is no longer valid, and in order to calculate the specific heat, an approximate formula for the energy is obtained by analogy with the theory of Bragg and Williams. Finally, the problem of separation into more than one phase is briefly discussed.

在二元合金超格之统计力学理论中,原子间互作用能量,因原子之排列不同而异,其所生之影响,吾人擬於此篇中讨论之。吾人认为有Bethe氏理论中之相互作用能量,实为一平均值,其值因合金之秩序程度及其成分而异。吾人作二简单假设:一设相互作用能量为秩序及成分之线性函数,另一设其与原子对偶之数成线性函数。将此等假设应用於AB类之合金,则必须在所设函数中之系数间,有适当关系,合金之临界温度,始在成分为1:1时,有极大值。在AB_3类之合金,吾人乃应用Bragg及Williams二氏之理论以求简便。於此可证明若所设函数中之系数,可任意调整则所计算出之临界温度之极大值可在任何成分发生。故关於此点理论与实验不合之处,可望解决。又合金之反常比热,亦经算出。在AB类之合金,Bethe氏原来之能量公式不復可用,故另用与Bragg及Williams理论比较而得之公式计算。又关於合金可分为二相或多相之问题,此篇亦大略论及。

 
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