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By using the fauna of digital television broadcasting channel, sue as mass data transmission, less resource occupied than Internet, and QoS guarantee, this system is de signed base on the Redbud DTV front-end sys tem developed by Shenzhen institute of Tsinghua university. The designed system is a low-cost data downloader using more simple protocols than current data broad cast.

利用数字电视广播信道可以实现大容量的数据传送，与互联网相比具有占用资源少、服务质量有保证等特点，在深圳清华大学研究院数字电视前端系统紫荆神网的基础上，设计实现了比现有数据广播协议更简便的低成本数据下载终端。

Starting from analyzing the problems that the present wrapper generation toolkitsencounter in dealing with complex biological data sources, this thesis presents two data extraction models and algorithms for complex data sources, and then designs and realizes ReDE wrapper generation toolkit and L-tree wrapper generation toolkit.

本文从分析现有包装器生成工具在处理复杂生物数据源时存在的问题入手，提出了两种面向复杂数据源的数据抽取模型和算法，在此基础上设计和实现了ReDE包装器生成工具和L-树包装器生成工具。

If want the data of built-in in HTML page of the static state trends, and these dynamic data are the word that will offer by the program such as ASP, PHP, so every time a person visits your website, the server is about to carry out and handle Tongji.asp document, from the data with draw-out and relevant database, reexport shows to the webpage, if tens of thousands of person is visited at the same time, be about to be carried out tens of thousands of times, consequence cans be imagined.

假如要在静态的HTML页面里嵌入动态的数据，而这些动态的数据是由ASP、PHP等程序来提供的话，这样每次有一个人访问你的网站，服务器就要执行并处理一次tongji.asp文件，从数据库抽取相应的数据，再输出给网页显示，假如有几万个人同时访问，就要执行几万次，后果就可想而知。

Moreover, according to the characteristic of mobile police, the paper puts forward the solutions for data model, data persistence, messaging, and efficient strategies of data refresh and synchronization.

并且针对移动警务系统的特点，提出相应的本地数据模型、本地数据持久化、通信机制的解决方案以及实际有效的数据同步与刷新策略。

The method includes the following steps: firstly, a spherical neighborhood of present sample points is established by using the geometric spherical-modelling theory and all the sample points contained in the spherical neighborhood are adopted as candidate neighbor points, thus not only preserving the effectivity of the dimension reduction capability when data sets are sparse but also getting the advantages of low-sensitivity to isolated points and good stability of the preserved topological structure; then a data relevance matrix more matching semantics can be obtained by relevance measurement based on route clusters to update the candidate neighbor points in the spherical neighborhood and optimize the regular neighborhood space of the present sample points, thus improving the phenomenon that the dimension reduction of sample sets provided with folded curved faces is apt to suffer the integrated-structure distortion in case of heterogeneous data distribution.

首先利用几何开球原理建立当前样本点的球状邻域，将包含在球状邻域内的所有样本点作为候选近邻点，不但能够保持在数据集稀疏情况下的降维性能的有效性，而且具有对孤立点敏感性不高、保留拓扑结构稳定性好的优点。然后利用基于路径聚类的相关性度量得到更符合语义的数据相关性矩阵，用来对球状邻域内的候选近邻点进行更新，优化当前样本点的规则邻域空间，改善了当数据不均匀分布时在带有折叠弯曲面的样本集上降维容易出现整体结构扭曲的现象。

Based on the study of triangle mesh of creation algorithm, include the arithmetic of regular data make triangle mesh and irregular data make triangle mash. The paper put forward a optimized triangle mesh algorithm. Its key point is divide data into pieces in advance, then set up the net. The experiment result shows that this algorithm improves not only the efficiency of terrain molding, but also the precision compared with the old algorithms The main purposes of this paper are research visualization algorithm of three dimensions and the arithmetic of terrain visualization.

本文研究了基于三角形网格的地形建模的基本理论和方法，包括规则数据的三角网生成以及不规则三角网 TIN 的生成算法，总结了前人在这些方面所做的工作，本文提出了一种优化的三角网格生成算法，实验结果表明，该算法不仅提高了地形建模的效率，而且所生成的三角网格模型与以往算法相比精确性也有很大的提高。

Electric power information consists of remote-control data, protection data and recorded fault data.

电力信息包括远动数据、保护数据以及故障录波数据等。

The dissertation discusses such key techniques in the implement exhaustively as the extraction of data, the design of dimensional data cube, data maintenance and renovator and dimensional analysis. We will study them carefully and employ them in the decision support system.

论文中详细讨论了实现中的一些关键技术，如数据抽取转换、多维立方体设计、数据维护与更新、多维分析操作等，并将这些技术应用到公路建设决策支持系统的创建中。

In addition, the information which demonstrate the rule with high repetitiveness by data mining, though such information can help designer understand trend of the data, however, it is difficult to get the chance that hidden in the data.

另外，经资料探勘挖掘出的资讯是资料里呈现出重复性高的规则的资讯，虽然这样的资讯可以帮助决策者了解资料里的趋势，但是，却不容易去挖掘出隐藏在资料里的机会。

Complex data form, low signal -noise ratio, bad data repetitiveness, uncertain environment are the inherent characteristic of AE signal, so it is difficult to obtain numerous topic training data.

复杂的数据组成，低信噪比，数据重复性差，环境不确定是声发射信号的固有特征，因此难以获得大量的典型训练数据。

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。