SAN技术在基础地理信息数据库系统建设中的应用

分析了基础地理信息数据库建设中对存储备份系统的需求和当前存储系统的组成及特点 ,提出了存储局域网在基础地理信息数据库系统建设中的应用方案 ,并介绍了其在陕西省基础地理信息数据库系统建设中的实现情况     

地貌晕渲中光源使用方法与用色规则的研究

研究了设计彩色地貌晕渲图的交互式人机协同方法，并着重对晕渲中灰度值和色彩的调整方法进行改进和试验。试验表明，利用该方法制作的彩色地貌晕渲效果比单光源彩色地貌晕渲有较大的改善。     

基于OpenGIS规范的地理信息系统组件的内核及功能设计

提出了符合OpenGIS规范的二维地理信息系统组件软件MapManager的设计思想 ,介绍了MapManager的设计过程 ,并对其不足和进一步研究方向进行了讨论。     

基于智能对象的决策支持系统体系结构研究

分析了决策问题及其求解过程 ,揭示了传统IDSS体系结构的不足 ,阐述了应用面向对象的结构化知识表达构造智能对象 ,提供了智能决策过程支持的方法和新的IDSS体系结构 ,并在农业空间决策信息系统的实践中进行了验证     

Doing groups: Situating knowledge and creating stories

This paper presents group research as a potentially powerful research tool for cultural geographers interested in the ways knowledge is produced at the interpersonal level. I argue that groups can create unique research spaces that incorporate 'sociality', the everyday social norms, logics and languages that guide ordinary conversations, into the research agenda. By concentrating on these discursive norms, insights can be obtained into the ways that knowledge is negotiated, produced and constrained in different places. To demonstrate the value of group research, a case study involving Australian environmentalists is analysed, to show how forests are constructed, contested and naturalised within this particular subculture. The article concludes by emphasising the importance of group research to critical geographers interested in social empowerment and change.     

The method of design for seismic data database system based on tree structure

Introduction In recent years, with the development of earthquake observation technology, increasing ofobservation stations and improvement of observation instruments which are digitalized and con-nected by network, a great deal of data is recorded, to some extend, which brings difficulty for usto manage and store them. It leads to traditional methods, which use the file system to managemass data, could not satisfy our requirement, and it is necessary to find a new method in place oftradit…     

Geographical knowledge and policy: the positive contribution of discourse studies

The 'discursive turn' has been blamed for a lack of engagement between geographers and policymakers. This paper argues that such a view is fundamentally flawed. It ignores the positive contribution that discourse analysis has made to policy studies and the particular role that geographers have played in developing such analyses. It is based on a misconceived view of the policy process and how knowledge can contribute to policy outcomes. A closer attention to policy discourses reveals exactly how knowledge is constructed within the policy process and can help identify how policy may be improved through discursive means.     

Research relevance, 'knowledge transfer' and the geographies of CASE studentship collaboration

The Co-operative Awards in Science and Engineering (CASE) studentship programme of the UK Research Councils provide one example of wider efforts internationally to encourage so-called 'knowledge transfer' and thereby harness publicly supported university research more closely to the goals of national competitiveness, regional economic development and local regeneration. In this paper we describe the implications of how the various UK research councils have interpreted the objectives and beneficiaries of 'knowledge transfer', both for the relative opportunities available to human and physical geographers for collaboration through CASE and for the sorts of values that their research must serve. Then, we draw on unpublished data from the Economic and Social Research Council (ESRC) to explore the geographies of CASE studentship allocation and participation. The broad regional and institutional patterns of participation we describe have important implications for ongoing debates in the UK about research selectivity and the role of the university as an engine of local development, while the striking disciplinary patterns of CASE participation, and in particular the overwhelming success of geographers in this competitive programme, provide an opportunity to reassess claims about whether and for whom geographical research is relevant.     

Karst database development in Minnesota: design and data assembly

The Karst Feature Database (KFD) of Minnesota is a relational GIS-based Database Management System (DBMS). Previous karst feature datasets used inconsistent attributes to describe karst features in different areas of Minnesota. Existing metadata were modified and standardized to represent a comprehensive metadata for all the karst features in Minnesota. Microsoft Access 2000 and ArcView 3.2 were used to develop this working database. Existing county and sub-county karst feature datasets have been assembled into the KFD, which is capable of visualizing and analyzing the entire data set. By November 17 2002, 11,682 karst features were stored in the KFD of Minnesota. Data tables are stored in a Microsoft Access 2000 DBMS and linked to corresponding ArcView applications. The current KFD of Minnesota has been moved from a Windows NT server to a Windows 2000 Citrix server accessible to researchers and planners through networked interfaces.     

事故经济损失评估方法及计算机程序设计

分析了事故的后果和经济损失,详细论述了由于生产活动的中止和人的死亡或劳动能力的丧失而导致的生产活动中劳动力资源损失的计算方法,并应用面向对象的数据库系统Cache′和Delphi开发工具编写了事故经济损失计算程序,以货币形式给出了每个损失点的损失大小并输出可能损失的报告书,为事故管理、安全决策和风险评估提供了科学的依据.