According to the basic theory of Bayes research into Bayes estimation of multigroup ranging measurement test and derive formulas used in range and density test when average value and variance are unknow .

根据Bayes方法的基本思想，研究多组距离（长度）测试Bayes估计，推导出 均值、 方差未知时的距离（长度）、密集度检验所用公式。

In this paper the thickness and fluctuation of free falling film were described by mean value and variance respectively and the data showed that the mean film thickness increased with the increasing of flow rate and downstream distance and so did the fluctuation .

本文采用 均值 和 方差描述液膜厚度与波动特征，对降膜反应器内自由降液膜流动状态进行了研究，发现随着流率和出流距离的增大，自由降液膜平均厚度变厚，波动性增强。

Identity Statements Puzzle and Cognitive Value Variance

同一陈述疑难与认知 价值 差异

Using the formula the value of variance component estimation is unbiased .

利用该法进行 方差分量估计，其 估值无偏。

Has compiled the MATLAB procedure when asks the appropriate system parameter separately for the true quota and the random variable continual linear two systems optimum control functions transfer function most superior performance index and its average value and variance .

编写了MATLAB程序，分别求得当系统参数为确定量和随机变量时，连续线性二次型系统的最优控制函数、传递函数、最优性能指标及其 均值 和 方差。

Meanwhile in terms of CAT and SOD isozymes although there were no specific bands produced the gray value variance analysis showed that the differences between treatment group and comparison group were significant demonstrating that the microwave stress inhibited CAT and SOD activity . 4 .

而CAT和SOD同工酶酶谱虽没有特异酶带的产生，但灰度 值 方差分析结果显示各处理组与对照差异显著，说明微波胁迫对CAT和SOD产生了抑制作用。

This paper derives the expected value and variance of the present value of the benefits for a combined life insurance in a stochastic interest environment .

在随机利率环境下，针对一个联合寿险产品进行讨论，推导得到了保险金给付现值的期望 值 和 方差。

The steady characteristics mainly include the average value and variance extreme value and the qualified rate abnormal events and frequency distribution of the measured signal .

其中，稳态特性主要包括了实测数据的 均值 与 方差、最值与合格率、实测数据异常事件、实测数据分布特征。

Taking modeling fuzzy comprehensive evaluation of various influencing factors as its core this dissertation considers the fuzzy expected value and variance of equipment importance as important parameters in formulating maintenance strategy .

该模型以设备重要度的模糊综合评价为核心，并将设备重要度的模糊期望 值及 方差作为检修策略制定的重要参数。

First this paper particularly discuss PDA IMM algorithm adaptive algorithm of mean value and variance based on current statistical model and Kalman filter algorithm based on Neural network .

本文详细讨论了具有代表性的PDA算法，IMM算法以及基于当前统计模型的 均值 与 方差自适应算法和基于神经网络的卡尔曼滤波算法。

Taylor Polynomials are constructed to calculate the mean value and variance of local stress and local strain . The mean value and variance of component fatigue life is also obtained .

使用Taylor多项式计算局部应力应变的 均值 和 方差，并求出构件疲劳萌生寿命的均值和方差。

After that three characteristics called variance characteristics CV characteristics and range characteristics were obtained using the above method in which algorithms of mean value variance and range were used respectively .

然后根据这种方法将其中的运算分别使用 均值、 方差、极差等算法经过一系列的运算，得到三种特征：方差特征、灰度CV值特征、极差特征。

A traffic anomaly detection algorithm based on steady model is proposed . Both weighted mean value and variance statistics method are used to build and update the steady model . Furthermore ROC curve method is used to assess performance .

提出了一种基于稳态模型的流异常检测算法，采用加权 均值 和 方差 计算相结合的统计学方法对网络流量稳态模型进行建模和更新，并使用ROC曲线进行异常检测模型的性能评估。

Considering the randomness of structural physical parameters the computational expressions of the mean value variance and variation coefficient of the mean square value of structural displacement and stress responses under stationary random excitation are developed .

考虑结构物理参数的随机性，导出了结构在平稳随机激励下位移响应均方值和应力响应均方值的 均值、 方差和变异系数的计算表达式。

First two suitable neighborhoods are selected then the value of variance increasing is calculated other than entropy to detect and locate target .

首先选择大小合适的两邻域，通过计算两个邻域的 方差增长数值来而不是熵增长 值来进行目标检测和定位，同时解决了邻域熵进行目标检测受背景亮度影响的问题。

On the Pooled Price Variance and its Accounting Treatment An Inquiry into Value Variance in Merger and Acquisition ( M & A ) of Companies and Theory of Accounting Information Announce

试论合并价差及其会计处理公司购并 价差及其信息披露会计理论探讨

Because of the difference of the base of the teaching objects especially in the practice of teaching in grade and in class it is incomprehensive to take the mean value and variance of students ' study result only by a simple and conventional statistical analysis .

由于教学对象的基础差异，尤其是在分级分班教学的实践中，仅依靠简单的常规统计分析去提取学生成绩的 均值 和 方差等数字特征是不全面的。

It is suggested also that the extracting periodic terms are regarded as the influence factor in the error motion and the mean & value and variance of Rayleigh distribution as the evaluating the rotation accuracy of shafting .

并建议将提取的周期函数项作为诊断影响精度的因素，而以瑞利分布的 均值 和 方差来评价轴系回转轴心漂移的平均距离。

Analysis of calculation method of the expected value and variance for activity times in pert / cpm

统筹方法中工序 平均时间及 方差计算方法的分析

Five parameters i.e. index of genetic diversity variance of phenotypic value variance of phenotypic frequency coefficient of variation and ratio of phenotypic retained were used to evaluate the validity of sampling strategy in primary core collection .

应用遗传多样性指数、表型 方差、表型频率 方差、变异系数和表型保留比例等5个参数来检验各取样策略所得的核心种质。

By use of the current statistical model of maneuvering acceleration the adaptive filtering for maneuvering acceleration mean value and variance is realized .

利用目标机动加速度的当前统计模型，则实现了该估计器加速度的 均值 和 方差的自适应滤波估计运算。

Experiment results indicate that the ones with Ag-Zn electrode possess better ageing performance ( Their resistance value variance rate is about – 4 % surge current failure rate is nearly 0 ) .

结果显示：烧渗Ag-Zn电极的元件有较好的老化性能， 阻值 变化率？R/R≈–4%，电流冲击失效率≈0。

A new method to count the expected value and variance of time dispersion is presented for time dispersion of underwater optical wireless communication .

给出了一种计算水下无线光通信中时域展宽的 均值 和 方差的新方法；

In terms of statistics average value and variance can be calculated to present pathological data .

对所得到的 细胞核 面积及数量进行统计，得到以 面积为 横 坐标，以 数量为 纵 坐标的统计分布图，计算 均值及 方差，给出病理数据。

The matching error is further reduced through using distance mean value and variance of the edge similarity as similar metric of matching and rule of confidence level .

采用边缘相似点的距离 均值 和 方差作为匹配的相似测度和置信准则，进一步降低了匹配的误差；

Based on this the solution to efficient set in efficient market is solved and it is also obtained that the expected value and variance of the rate of portfolio return are not related to uniqueness of efficient set in the efficient market .

在此基础上，求出了有效市场下有效证券组合的通解，亦获得了有效市场下证券收益率的期望 值及其 方差都与有效证券组合解的唯一性无关的结果。

The results indicated that the deviations of mean value and variance of the linear decision parameters were reduced by P-PIC compared with PIC .

结果表明：与传统PIC检测器比较，P-PIC检测器降低了软判决量的 均值 和 方差的偏差；

Based on the method of statistics this paper derived the output mean value and variance of conventional parallel interference cancellation ( PIC ) partial parallel interference cancellation ( P-PIC ) and minimum mean-squared error ( MV-PIC ) detectors for CDMA .

基于统计分析方法，导出了传统并行干扰消除检测器（PIC）、部分干扰消除检测器（P-PIC）和最小均方误差检测器（MV-PIC）的输出 均值 和 方差。

On the basis of the digital simulation of internal ballistic properties for a solid rocket motor the mean value and variance of internal ballistic properties are given such as average pressure and thrust maximum pressure specific impulse and total impulse .

对某固体火箭发动机的内弹道性能进行了数字仿真，得出了燃烧时间平均压强和平均推力、最大压强、比冲和总冲等内弹道性能参数的 均值 和 方差。

Mean value and variance method describes the spectral distribution properties of normal and cancerous tissues quantitatively .

均值 方差法则定量地描述了大肠癌及正常组织的光谱分布特性。