平均差

This paper is expanded into three main parts to study and analyze the stock time series.1 Through the normality tests, All the sample stock-data curves show different phenomenon of Aiguille and Fat-tail, as well as Left-Deviation, which proves that none of the sample series belong to normal distribution, in other words, the linear method can't be applied into the analysis process, so we adopted the R/S method instead.2 The application of R/S method has verified the long-term memory characteristics of the sample series, and Support Vector Regression is combined to enhance the precision of Average circle period.

文中对股票时间序列从以下三个方面进行了研究和分析：1通过正态性检验，发现各样本股票数据均表现出不同程度的尖峰和胖尾以及左偏现象，证明了所有的样本序列全都不属于正态分布，也就是说明它们不能够适用线性方法进行分析，必须采用重标极差分析方法的非线性方法。2应用R/S分析方法验证他们具有长期记忆的特性，并且结合支持向量回归机提高了测定平均循环周期时的精确性。

Based on the second- and fourth-order compact difference formulas for second-order derivatives and the idea of weighted average, two classes of the alternating direction implicit method are proposed for solving two-dimensional wave equation. The methods are of accuracy O (T^2+h^4) and O (T^4+h^4) respectively. Stability conditions are obtained by Fourier analysis method.

基于二阶微商的四阶紧致差商逼近公式及加权平均思想，提出了数值求解二维波动方程的2种精度分别为O(т^2+h^4)和O(т^4+h^4)的交替方向隐式格式，以及与其相匹配的第一个时间层的同阶离散格式，并且通过Foulier方法分析了格式的稳定性。

By 35. 18°. The standard deviation σ was representative of mean deviation angle 〓, which characterized commendably the degree of misalignment grains.

当取向磁场为1.5T，粉末的松装密度各为23％和32.3％时，平均取向度分别为0.945和0.892，与之对应的磁通分布标准均方差为3.654和6.688。

A new approach to eliminate the ranges dependence based on angular frequency shifting in space domain was presented, in which, the nonhomogeneity of clutter is removed and the blind area of target detection is reduced due to the fact that the clutter of all the compensated range cells in every channel is moved to the place of the clutter of the desired cell by the different angular frequency shifts being added into spatial data along all Doppler channels for every compensating range cell.

第七章针对非正侧视相控阵机载雷达，由于杂波在距离上呈现出严重的非均匀性，尤其是在近程这种依赖距离的杂波谱呈现的非均匀现象更为严重，使得用于计算自适应权的协方差矩阵不可能直接由距离单元数据统计平均来估计得到，否则STAP处理及其降维技术难以获得理想的杂波抑制性能和目标检测性能，甚至恶化。

Average maximum temperature, average daily difference in temperature adversely affected the polarization of spicules and the accumulation of dry substance during the period of procreation growth and even the whole procreate period time.

其中，在玉米生殖生长期乃至全生育期中，平均最高气温、平均日较差对玉米花穗分化及干物质的积累影响都较明显。

All the people were divided into two groups: healthy persons and patients, and were analyzed with HP5500 sonograph. Average image intensity, peak to peak intensity and standard deviation of image intensity of renal were measured and normalized by IBS of renal sinus and expressed as IBS%, PPI%, and SDI%.

将全部研究对象分为病例组和正常对照组，应用HP5500型超声诊断仪分别检测其肾脏的图像平均强度、图像峰—峰强度、图像强度标准差，并计算标化的背向散射积分、标化的图像峰—峰强度、标化的图像强度标准差，分别对各值进行分析比较。

The results show that the RIEMS can simulate the pattem and seasonal cycle of standard deviation of surface temperature and precipitation. Meanwhile,RIEMS is unable to simulate inter-annual variability of precipitation in April and July, although it does pretty well for January and October precipitation.

结果表明，模式能够较好地模拟出温度和降水的标准差的空间分布和不同区域平均标准差的年变化，同时，对降水的年际变率检验发现，模式能够模拟出一月和十月降水的年际变率，而不能模拟出四月和七月降水的年际变率。

Based on the conservation law, applying appropriate rezone methods for meshes we modify the 9-point method to reduce computation error due to poor regularity of the meshes and low precision due to the approximation to vertices values by an average of neighboring cell values. The nonlinear system obtained is a different system from the 9-point scheme.

该方法从守恒方程出发，将九点差分格式应用于按某种合适的方式进行重分之后的网格上，减少由于网格正则性差以及网格节点上的物理量采用周围网格量的加权平均等原因所引起的计算误差，得到一个新的但其解仍然逼近原来网格上的物理量的方程组。

Protection of the coating will: printing plate nullahs dirty, clean water, when removed the moisture, the protective agent onto the outside pages, each about 20 ~ 30ml with gauze with scrub it the entire suites must be uniform (note that there can be no uniform, flow-like marks), you can drop it onto the baking of fluecured version of the machine.

涂布爱护剂的办法不兵显影后的印版举行不兴不净，用火冲刷肮不净，刮去版背上的火份，把爱护剂不立在版背上，每块差开版约用20~30ml，再用不全脂纱布不兵合座版背涂擦平均（夺纲必不退给平均，不克不及有火流样陈迹），即可放到烤版机洋烤版。

In order to get the rotating angle of the quarter-wave plate in solution 2, the phase difference caused by the plane mirror is accurately obtained by experiment.The technology of rotating mirror beam coupling and splitting is also studied.

闭环后，偏振耦合分光系统工作稳定，且对返回信标光的平均接收效率高于90％；为了准确计算方案2中波片旋转的角度，提出了一套测量相位延迟差的实验方法，较精确的获得了被测系统的相位延迟差。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。