变量

Mathematical expectation is the random variable one of the important features of mathematics, the average value of random variable response to the size, in practical application has a pivotal role.

数学期望是随机变量的重要数学特征之一，它反映随机变量平均取值的大小，在实际应用中有着举足轻重的作用。

Consequently, the sensitivity of the input random variable of one neural network is defined as the mathematical expectation of the partial derivative in the probability measure space.

当神经网络的类型已知，各个输入变量的联合分布函数已知，就可以明确的求出神经网络对各输入变量的敏感性计算式。

Based on the interval probability and the second fuzzy probability, go a step further the definition and characters of random variables with the third fuzzy probability and the fuzzy distribution function and fuzzy probability distribution sequence were put forward.,the definition and characters of mathematical expectation and variance were studied also.

在区间概率和第二类模糊概率的基础上，进一步给出了具有第三类模糊概率的随机变量及其模糊分布函数和模糊分布列的定义和性质，并研究了模糊概率随机变量的模糊数学期望和模糊方差的定义和性质，进一步完善了模糊概率理论。

Based on the property of OPF problem, construct appropriate linear programming model to avoid dimension expended, apply sparsity technique and construct the same triangle factorization matrix of IP method to reduce the calculation burden.

本文从众多文献的研究中获得解决以下问题的方案：如何从内点算法中判断基变量；如何从内点法中得到与单纯形表相同的信息以及如何根据内点法的乘子变量形成割平面。

Using the method of dividing variables , the solution of elastic dynamics can be changed into the eigen value problem of Hamilton s space differential operator matrix , and the total solution of dual variable s (modal strain and modal strain rate ) can be obtained by .

采用分离变量方法，将弹性动力学解转变为Hamilton空间算子矩阵的本征值问题，对偶变量的全解通过本征解来展开而获得。

There are two main analysis techniques of Petri nets, one of which is invariant method. The invariant method is a linear algebraic analysis based on the matrix representation of Petri nets.

Petri网的分析方法有二种：可达树和不变量分析方法，其中，不变量分析方法是一种将矩阵描述应用于Petri网的线性代数分析方法。

The matrix representation of GLKC is given on the basis of topological characteristics of GLKC, so the problem of the mathematical description is solved successfully for the type synthesis of GLKC.

进而分析了GLKC的结构不变量，根据这些结构不变量，给出了GLKC同构判定的一般方法，即利用组合矩阵的幂序列成功地解决了GLKC的同构判定问题。

The dynamic characteristics of stochastic truss structures and stochastic frame structures are analyzed by using Random Factor Method. Then, from the expressions of structural random response of the frequency domain, the computational expressions of the mean value, variance and variation coefficient of the mean square value of the structural displacement and stress response under the stationary random excitation or non-stationary random excitation are developed by means of the random variable's functional moment method and the algebra synthesis method.

考虑压电智能桁架结构物理参数、几何参数、结构阻尼和外荷载、闭环系统控制电压分别或同时为随机变量，构建了结构在随机力作用下的动力响应分析模型，提出了求解方法，推导出结构动力响应随机变量的数字特征计算表达式，通过算例验证了所建模型和所提求解方法的正确性和有效性。

MEMO MemoFieldName Specifies the memo field from which variables and arrays are restored.

MEM.MEMO MemoFieldName指定保存内存变量和内存变量数组的备注字段。

Minimus density were collected from 1984 to 1993. Grey correlation analysis was carried out to study the relationship of 18 indices with An. minimus density. E variable was developed and its relation to the An. minimus density was analyzed to establish an evaluation model.

对18项指标与微小按蚊密度的关系进行灰色关联度分析，按照灰色阈值筛选评价指标，合成变量E，研究变量E与微小按蚊密度的关系，从而建立微小按蚊密度评价灰色模型。

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。