查询词典 statistical

Assuming that the intermediate system decayes with a statistical lifetime, the general behaviour of the threefold differential cross section d~3σ/dZdEdθ in the dissipative collisions of 68MeV ~(12)C+~(27)Al and 68.6MeV ~(12)C+~(40)Ca system are analysed in the diffusion model framework.

在扩散模型的框架内，用假定中间组合系统以一个统计的寿命衰变的方法分析了68MeV~(12)C+~(27)Al和68.6MeV~(12)C+~(40)Ca的耗散碰撞中产生的产物的三重微分截面d~3σ/dZdEdθ的一般趋向。

This thesis is devoted to a study of statistical inference for diffusion processes and some applications in finance.

本文主要研究扩散过程的一些统计问题以及一些在金融上的应用。

Support Vector Machine is a new machine learning method based on the idea of VC dimension and Statistical Learning Theory.

支持向量机是基于VC维和统计学习理论理念的一种新的机器学习方法。

Statistical learning theory,VC dimension,Support vector machines,Model selection

统计学习理论，VC维，支持向量机，模型选择

Wear before and after the monkey all right diopter left eye compared with no statistical difference.

戴镜前后所有猴右左眼屈光度相比较均无统计学差异。

But, very few somebody thinks of,"" of " of civilian battalion economy, enterprise of " civilian battalion is not the legal concept on firm sense and normative meaning, in the file that also did not appear at the party almost, and cannot find the statistical caliber of direct correspondence and data from inside the official statistic of national statistic bureau.

但是，很少有人想到，"民营经济"、"民营企业"并非严格意义和规范意义上的法律概念，也几乎未出现于党的文件之中，并且无法从国家统计局的官方统计中找到直接对应的统计口径与数据。

Statistical analyses are made of morning sounding data and ground flash data from June to August 1997 and 1998, the latter was obtained with a 3\|station lightning direction finder network installed in Pingliang.

引言 对流风暴中一般都存在大量的雷电活动，雷电特别是地闪常常造成人员伤亡、电力系统的损坏、引起森林火灾等，造成的损失越来越严重。

This is not a statistical test , as we explicitly stated in our paper ; it was simply an exercise to disabuse those who hold the view that one gets the same information from the two procedures except for the fact that the normalization is a bit different in the two cases .

这不是一个统计的测试，当做我们明确地在我们的报告被陈述；它只是一种练习解迷惑支撑视野一除了事实：常态化有一点不同以外在二个情形从二个程序得到相同的数据的人。

The main objective of this dissertation was to develop methodologies with capability of engineering application for simulating flow in fractured rock using discontinuum models. The study work includes three parts. In the first part, numerical methodology of three-dimensional discrete fracture network model casing on hybrid BEM-channel was presented, and the technique for improve the model's computing efficiency was also studied. Firstly in this part, computer simulation methodology based on the Baechermodel for generating network of discrete fractures was presented, which includes the follow details: probability distributions of fracture density,orientation, trace length, size, and aperture and estimation of their statistical parameters; stochastic models of fracture network; Monte-Carlo's simulation method; numerical simulation procedure and technicality.

给出了离散裂隙网络模型所依据的基本假定；发展了基于Baecher模型的离散裂隙网络计算机随机生成技术：详细地推导了单裂隙渗流和多裂隙相交网络渗流的边界单元法公式，发展了离散裂隙网络中稳态渗流的边界元数值技术，并且讨论了相关的具体数值技术细节，如角点的处理方法，单元的自动剖分等：描述了混合边界元—管流模拟方法及其数值实现；研究了裂隙网络的简化方法，并针对裂隙网络边界元法的特点提出了一种改进的分块三角分解法。

The 7-day low flow was regarded as statistical quantity, on the base of analysis of the discordancy measure and heterogeneity measure, the regional low flow frequency for Donjiang basin was carried out using L-moments based five frequency distributions with three parameters viz. Generalized Pareto, Generalized extreme-value, Generalized Logistic, Lognormal (LN3) and Pearson type Ⅲ. Based on the L-moments ratio diagram,{Z} and τ4-statistic criteria, LN3 distribution was identified as the most appropriate distribution for the homogeneous region with the 14 sites.

以年最小七日平均流量作为枯水径流的统计特征量，在水文站点一致性分析、水文相似区鉴别的基础上，以常见的5种三参数分布函数：Generalized Pareto分布、Generalized Extreme-Value分布、Generalized Logistic分布、LogNormal分布(LN3)和Pearson type Ⅲ为研究对象进行东江流域区域枯水频率分析。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。