数据共享

The massive DGIS has great meaning to share and interoperation of geospatial data, share and distributed processing of geographic operation services, and integration of domain application.

大型分布式地理信息系统对于基于网络的海量空间数据的共享和互操作、地理操作服务的共享和分布处理以及专业领域应用系统的集成，具有十分重要的意义。

The theme uses structure design of WUHAN DAMING company OAS for example, to actualize GIS and OAS integration exploitation, preferring two settlement ways: firstly, if you wants GIS and other computer system for integration no suture, you must use integration exploitation of GIS fully, and use tools software of GIS and graphic exploitation language in integration re-exploitation;then it is fully to utilize space data, to achieve effective assistant decision-making system;and, to research and to design database of based on metadata technique, distributed data management and share technique.

论文以武汉达明公司的办公自动化系统的结构设计为例，对实现GIS与OAS的集成开发，提出了两种解决办法：一是如果要让GIS 可以很方便地与各种计算机信息系统进行一体化的无缝集成的话，就要充分地利用GIS 的集成开发方式，结合GIS 工具软件与可视化开发语言进行集成的二次开发；二是要充分地利用空间数据，实现有效的辅助决策系统，对基于元数据技术的、分布式的数据管理与共享技术的数据库系统进行研究和设计。

Thus achieve the company isomerism data integration, realize enterprise information resources more effective use and data sharing.

最后针对"销售信息网络管理集成系统"的需求，利用XML和JAVA技术，在Windows 2000 环境下，采用本文给出的异构数据集成体系结构，实现了公司异构数据的集成，达到了数据的共享。

It becomes more difficult to manage, integrate and share the control system real-time data when we set up the industrial real-time database because of complicated affair between every department and isomeric character of the system. A three-level-structure model and the method to establish database is provided based on CORBA criterion with its character of being regardless of programming languages, hardware platform and network protocol . A universal real-time database faces multi-system is also set up by learning the distributed criterion, it can realize the request broker , and the application software can visit the database pellucidly ; Thus the power station simulation model can be linked with the control system such as infi90 , ovation and be made use of the control object , a closed simulation and control experiment system is set up. Further more we can build an integrate automatic experiment platform from the simulation object of power plant to the process control and the to SIS. Li Ming(Control Theory and Control Engineering)Directed by associate prof. Lin Yongjun

在创建工控领域实时数据库时，企业各部门间的复杂事务及内部异构性给实时数据的管理、集成和共享带来了一定的困难，根据CORBA规范具有语言无关性、平台无关性和网络协议无关性的特点提出基于分布式计算规范CORBA的三层体系结构模型及建立与维护实时数据库的方法和途径；通过CORBA规范建立面向多个分散控制系统的通用实时数据库，实现数据访问代理，使应用软件可以透明地对实时数据库进行访问、存取、管理；将Infi90、Ovation分散控制系统与火电厂仿真机模型进行有效的互连，以全物理过程仿真数学模型为对象，构建了闭环控制仿真实验研究系统，实现数据的高效连通及管理；进而通过基于CORBA的实时数据库构建一个从火电厂仿真机对象到过程控制设备再到SIS系统的综合自动化试验平台。

Metadata is the descriptive data for rhe data structure,quality,condition,query and other relative property,and plays an important rale in information sharing.

元数据是说明数据内容、质量、条件、查询和其他有关特征的背景数据，在信息共享中有重要作用。

In view of the question for lower repeat improve rate and insufficient interflow and share, the paper present necessity for engineering geology and geography information system to realize the network. Combined the two databases of engineering geology and geography information system the method that how to transmit and interflow the datum through the data interflow center for users is introduced in detail.

针对工程地质信息资源的重复利用率低，数据不能充分交流与共享等工程地质作业中实际存在的问题，提出对工程地质地理信息系统实行网络化的必要性，并结合工程地质地理信息系统的两个数据库，详细介绍了用户是如何通过工程地质数据交流中心进行数据传输与交流的

If you really need to store some data that is local for this Snakelet, and shared for all users and all requests, you can use the getContext method to obtain the local Snakelet data context.

如果您想存储并共享本地数据和所有请求数据，您可以使用getContext 方法获得当前Snakelet数据。

From the view of the structure of global address space and the location of shared data, we proposed a new concept, Superobject data structure and a new method for locating shared data, which unifies all methods of previous systems.

从全局地址空间的组织和共享数据定位方法的角度提出了一个新的概念Super-object数据结构，并提出了基于Super-object数据结构的定位方法，它统一了所有实现系统中的各种定位方法。

This technique is an effective method for completing POSC data share. The technique has been used to issue the information from the database of log well.

该技术能够完成POSC数据的共享，并已实现了基于POSC数据平台的测井数据项目数据库的网上信息发布。

Wireless Sensor Networks ; Key Predistribution ; Shared-key Discovery ; Key Transfer on multi-path ; Reliable Data Transmission ; Combinatorial Design ; Secret Sharing ; Error Correction Coding

863高技术；国家自然科学；无线传感器网络；密钥预分发；共享密钥发现；多路径密钥传输；数据传输可靠性；组合设计；秘密共享；纠错编码

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。