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Studies show that multifractal spectra of log data are rarely symmetrical, but have steepened slopes on their left branches where the singularity strengths are higher. This indicates more rapid variations in fractal dimensions for highly singular data points in the data series.

研究表明实测的测井数据的多重分形谱很少是对称的，一般是左侧奇异值小的分支比右侧奇异值大的分支的斜率要大，显示了较奇异的点的分数维随着奇异值的变化而有较快的变化。

A heteroscedasticity regression analysis method for censored data is presented,and it extends the traditional regression analysis,which is only suitable to complete and homoscedasticity data,to censored and heteroscedastic data.

提出截尾数据异方差回归分析方法，将传统的只适用于同方差和完全数据的回归分析推广到异方差和截尾数据的情况。

A fuzzy membership model based on support vector data description is proposed to fuzzify all the training data. Then the model is introduced into least square support vector machines. Data samples in input space are mapped into a high dimensional feature space, and then the smallest enclosing hypersphere is found.

将模糊隶属度概念引入最小二乘支持向量机，提出一种基于支持向量数据域描述的模糊隶属度函数模型，将输入空间中的样本映射到一个高维的特征空间；然后根据其偏离数据域的程度赋予不同的隶属度。

Firstly, sample data stream by two neighbor windows of given length. Then the sampling data is projected to normalized high dimension feature space and the two minus hypersphere models of two window sampling data sets are constructed respectively. Finally, detect change by computing cosine of inclination angle of two centrals of hypersphere.

该算法首先以给定长度的两相邻时间窗口对数据流取样，然后以支持向量数据描述方法将这两相邻时间窗口取样的数据流子集映射到规范化的高维特征空间，并分别建立描述这两相邻时间窗口取样数据流子集映像的最小超球模型，最后通过计算两超球之间的球心矢量的夹角的余弦，度量该两相邻时间窗口取样数据流子集的相似性检测模式变化。

Secondly, the paper is expanded from follow three aspects: the virtual design, the virtual process and the product data managementduring the developing the torque converter. Applying the key technique of concurrent engineering---design for function, design for assemblyand design for manufactureof the method of design for "X", the virtual design of the torque converter is accomplished in CATIA V5. Then the model constitution and the simulation of virtual process of the torque converter is done in CATIA V5, including the model constitution and the simulation of 5-aixe NC virtual process of the vane, the model constitution（material:PVC） of the idler pulley rapid prototypingand the virtual assembly and the motion simulation of the torque converter, etc. 3-D data exchange between various CAD systems is realized by using STEP standard. The lever of classing the character model of the torque converter is given. And the access authorization is set up and given to manage the partners' reading/writing the product data.

应用并行工程的关键技术之一——面向产品全生命周期的设计DFX中面向功能的设计DFF、面向装配的设计DFA和面向制造的设计DFM的方法，在CATIA V5中完成液力变矩器虚拟设计；在CATIA V5中对液力变矩器进行虚拟加工建模和仿真，包括液力变矩器导轮叶片五轴数控加工刀轨建模与仿真、导轮快速成型RP建模、液力变矩器虚拟装配和运动仿真等；采用STEP标准实现多CAD系统之间三维数据交换，提出液力变矩器特征模型的分级标准并对三维模型数据进行分级管理，制定相应的权限等级以规范合作厂家的产品数据管理层次。

Then, when image data of the object of the request are received from the hard disk recorder, the control circuit stores the image data into a buffer which can store image data for several hours.

然后，当请求的目标图像数据从硬盘记录器被接收，控制电路将图像数据存储在可以存储几个小时的图像数据的缓冲器中。

Compared with the prior art whose application server inactively receives and simply throws the data, the application server of the invention has active load balance ability, which can dynamically control the data emission of the locomotives according to the history data emission conditions of the locomotives.

相比于现有技术中应用服务器的被动接收、简单丢弃的处理方式，本发明中的应用服务器具备主动的负载均衡能力：根据机车历史发送数据情况，动态控制机车对数据的发送。

The algorithm is developed to solve the problems of incompact data format,too much data storage space and the difficult real-time data processing in PLC.

但在实际应用中也有自身的一些缺点，比如通信实现复杂，存储空间有限，数据处理功能较弱等。

To compensate for the incomplete projection data, polynomial interpolation method is proposed to deduce more projection data from the available ones. Furthermore ,with the Chapman model assumption of electron density distribution, a method to expand the view angle and evalute the projection data under low elevation angle is presented.

本文提出了用多项式插值的方法增加接收站观测数据，并根据对电离层垂直方向Chapman模型的假设，提出了扩展投影角度的方法，以估算观测中无法得到的低仰角投影数据。

With the completion and full implementation of biological genome project, it brings an increasing number of molecular sequence data. The focus of biological research transits from data accumulation to the data analysis and interpretation.

随着生物基因组计划的相继完成和全面实施，产生了越来越多的分子序列数据，生物学研究的重点也从数据积累向数据分析和解释过渡。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。