变量

In the chapter 5, during the optimization, the influence of search efficiency of choosing search variable is studied, and author proposes a kind of choice, which the positions of two exit points and the sagitta of the slip surface are taken as the search variable (the sagitta depends on the dynamic positions of two exit points of the slip surface), The examples show that the choice method decrease search region, improve the efficiency of searching, and has applying foreground.

在第五章中，探讨了搜索变量的选取对搜索效率的影响，对此作者提出以滑弧的两个端点位置以及它所组成的弓形高为搜索变量。实例表明，搜索变量的这种选取方法缩小了搜索范围，提高了搜索效率，有很好的应用前景。

Sometimes traditional separation of variables is not work anymore if the problem is presented in a Lagrangian system.

本文针对弹性圆柱壳在热荷载、冲击荷载以及两种荷载耦合作用下的屈曲问题，通过引入原变量与对偶变量组成的全状态变量，建立了系统的哈密顿体系。

Through linear regression analysis ,relationships between each parameter and the bottleneck shiftiness are discussed.

建立包含以上随机变量的流水车间生产系统瓶颈转移模型，对模型进行仿真，得到样本数据并结合瓶颈转移度量参数β，建立各变量与瓶颈转移性的多元线性回归模型，分析得到各变量对瓶颈转移性影响的相关性。

Trigonometric series is used to simulate stationary, non-stationary, Gaussian andnon-Gaussin stochastic processes by spectral representation in which the non-stationary stochastic processes are expressed as the product of determinate functionsand stationary stochastic processes.

结合随机变量的Monte Carlo模拟法，随机场的局部平均法与随机过程的三角级数模拟法，用均值、方差、相关长度及功率谱等，可有效地描述随机变量、随机场、随机过程，及同时具有场与过程随机的变量。

As Legendre integration is one of Gauss integration, it is nature to apply the others Gauss integration into stochastic FEM.

为了减少在多随机变量情况下的该方法的计算量，建立了一种简化算法，推导出利用单随机变量的响应结果构造多随机变量的响应。

According to the simulation theory between Structural Mechanics and Optimal Control Theory, the symplectic elastics is built after the symplectic space with the duality variables is introduced into the elastics.

根据结构力学与最优控制理论的模拟理论，将由原变量和其对偶变量组成的辛空间引入到弹性力学，从而使分离变量及辛本征函数展开的直接解析解法得以实施，形成了弹性力学求解辛体系。

In the symplectic geometry space, which consist of the original variables, the displacement, electric potential, magnetic potential, and their duality variables, lengthways shearing stress, electric displacement and magnetic flux, the magnetoelectroelastic solids problems are led into symplectic solution system, so the effective methods of mathematical physics like the separation of variables and symplectic eigenfunction expansion can be employed to solve the problem.

在由原变量-位移、电势和磁势以及它们的对偶变量-纵向的剪应力、电位移和磁感应强度分量组成的辛几何空间，将电磁弹性固体问题导入辛求解体系，从而使有效的数学物理方法如分离变量法及辛本征向量展开法可以用于该问题的求解。

By using the transfer matrix method of multibody system, the hard problem of computation of the vibration characteristics of LRMLRS coupled with rigid bodies and elastic bodies is solved which is very difficult to the ordinary dynamic methods, and the vibration characteristics of LRMLRS which is varied when the number of rockets in the launch device is varied, is obtained conveniently. By developing augmented eigenvectors of the LRMLRS and its orthogonality conditions, the nonorthogonality problem of the multibody system including rigid bodies and elastic bodies is solved and the exact analysis of the dynamics response of the LRMLRS including rigid bodies and elastic bodies is realized. By using the random integer programming method, the hard optimization problem which contains continuous variables, discrete variables and random variables at the same time is solved. This method provides a technology for optimum design with random variables and discrete variables. The dynamic optimum design is realized to decrease the number of rockets consumption in the LRMLRS test. The simulation system of dispersion of fire is established by using the maximum entropy method to estimate dispersion of fire.

通过应用多体系统传递矩阵法，解决了刚弹耦合远程多管火箭多体系统振动特性这一通常力学方法不便于解决的计算难题，方便地获得了远程多管火箭振动特性及其随发射架上火箭弹个数变化而变化的情况；通过构造增广特征矢量及其正交性条件，解决了刚弹耦合多体系统特征矢量不具有通常意义下的正交性的难题，实现了对刚弹耦合远程多管火箭动力响应的精确分析；应用随机整数规划法，解决了同时考虑连续、离散和随机变量等多种设计变量的优化设计难题，为含随机和离散变量的优化设计提供了手段，实现了减少远程多管火箭试验用弹量的动态优化设计；建立了应用最大熵法估计的密集度仿真系统，优化射序和射击间隔，实现了提高远程多管火箭射击密集度的动态优化。

Although in the time series analysis, the theory and method of single variable time series can be extended to multi—variable time series, but it also confronts problems which are not met before.

尽管在时序分析中，有关单变量时序理论及方法大部分都可平行推广到多变量时序分析中，但它也存在着在单变量时序中所不曾遇到的问题。

Global TICTOC TICTOC = clock; function t = toc % TOC Read the stopwatch timer.

全局变量可被所有定义该变量为全局变量的函数使用。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。