分布数据库

From late 1970s,Chinese technological staff began to do deep research on the issue of population control and achieved a lot of researching results at three levels: population database , technology and soft ware of population analysis, the informational system of population management, the surporting system of population strategy and population forecast and software are at practical research level; the system control theory of nonlinear population distribution parameter in this article is of basic research.

从七十年代末，我国科学技术工作者开始对我国人口控制问题进行了深入的研究，分别从三个层面取得了许多研究成果：人口数据库、人口分析技术和软件、人口管理信息系统、人口决策支持系统、人口预测和软件等，属于应用研究层面；人口系统论和人口控制论等属于应用基础研究层面；而本文的非线性人口分布参数系统控制理论，则属于基础研究。

By using Visual Basic, based on NASTRAN finite element analysis, this paper developed an efficient and convenient software which can process automatically the result of NASTRAN analysis and establish the database, and compute the failure probability of structural element and system, plot the contour of failure probability.

在NASTRAN有限元分析结果的基础上，以Windows95为开发平台，以VisualBasic为开发工具，开发了一个效率高，使用方便的结构可靠性分析软件该软件可以自动处理NASTRAN的计算结果，建立数据库，计算结构单元和系统的失效概率，绘制结构失效概率分布云图等，为工程人员在有限元计算的基础上进一步进行可靠性分析提供了一个方便、快捷的工具

An engineering procedure for estimating crack growth behavior and fatigue lives of semielliptical surface cracks at weld toe s in complex stress fields was proposed based on a database of stress intensity factors and the elementary modes method developed by author.

以作者建立的焊趾半椭圆表面裂纹应力强度因子数据库以及复杂应力场中焊趾半椭圆表面裂纹前缘应力强度因子分布计算的基本模式法为基础，给出了复杂应力场中焊趾表面裂纹在疲劳扩展过程中形态变化规律及寿命的工程分析方法；并用这个方法计算了一些典型焊接接头在一些典型的外加应力场和残余应力场中的裂纹形态发展曲线。

PE will increase the herbarium collection by expanding its collecting and exchange programs (particularly emphasizing important groups distributed outside of China); set up a strong research team of taxonomist s; train the future generation of taxonomist s

标本馆的发展规划：1、通过采集和交换（特别是收集我国没有分布的重要类群）等途径，增加标本馆藏量；2、建立稳定的经典分类研究队伍，培养后备人才，深入开展植物分类学研究；3、加快标本馆数据库的建设；4、进一步加强植物学科普教育基地建设。

The paper analyzed variation of temperature, density and velocity of sound in the west pacific based on LEVITUS database using CSIR.

利用样条插值重构方法对LEVITUS数据库中的温度、密度和声速的月平均变化规律进行了分析，得到的海洋要素平面分布。

The research and application of waterage integration framework solves the data integration and share problem of distributed and heterogeneous databases, significantly increases the work efficiency of waterway administration.

水路运输集成框架的研究与实现，很好的解决分布、异构数据库中数据的集成和共享问题，显著地提高了水路运输部门的工作效率。

Based on the above research, the article discusses the process using ASP and ADO technique to manage and update database; studies the setting of purview to assure the security of system; discusses the function of layercontrol, eagle-eye navigation, search of information and etc.; discusses the function of statistic and analysis by the process doing the caky statistic chart of roadbed disease; analyzes the doing of distributing special map of disease and engineering with the character of rail-track engineering GIS.

在以上总体研究的基础上，讨论了利用ASP和ADO技术管理和更新远程铁路工务数据库的实现过程；为了保证系统使用的安全性，研究了对用户使用权限的设置；讨论了图层控制、鹰眼导航等地图操作功能以及信息查询功能的实现过程；以路基病害分析的饼状统计图的制作过程为例讨论了统计分析的功能；针对铁路工务地理信息系统的特点，分析了病害和维修工程分布专题图的制作。

Moreover, the system of secondary development has function that stores ultimate figure result into spatial database, it is not steady but flexible at any moment, it can so discretionarily superpose together with other figure layers that it forms synthesis figure set of multi-layer superposing and complicated content for the zone supplying accessorial support.

经二次开发实现的该应用型地理信息系统的另一个重要的功能还在于，能将以上最终成果图件存储于空间数据库中，之后可随时调用，与其它图层任意叠置，共同构成多层叠置、内容复杂的综合图件，为研究该地区水化学分布规律提供辅助决策支持。

Many data-intensive applications require a lot of distribute and heterogonous data resources.

仿真程序包含很多数据密集型应用，它们需要使用大量分布的数据库资源。

While the governor make use of the GIS information system's assistance management and analyze with the determination, it can develop the scientific of the work, the normal levels, making use of every kind of information efficiently, increasing inspectional speed in search, promote the information shares.

据统计，现代化社会信息系统中有百分之八十五以上的数据均有地理属性，MapInfo 地图信息系统用地图、图形和图表等信息描述形势，通过对数据库的查询、操纵来实现对各类信息的分析处理，可以将结果清晰的，以地域分布或图表的形式显示出来。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。