计量检测管理信息系统

设计该系统软件的目的是针对目前计量部门的信息化管理的需要,实现对计量部门生产作业的监控与管理.实践证明,该系统运行稳定,功能完善,操作简便,界面友好,提高了企业效益,符合用户的需求.     

基于Agent的建筑项目管理模型研究

自从中国加入WTO后,建筑市场逐渐开放,竞争加剧,项目管理方法在建筑业中日渐重要,在分析系统需求的基础上,使用Agent技术,探讨建筑项目管理系统的Agent模型、结构和基本任务.     

基于SQL Server的信息屏检修管理系统设计与开发

车辆段管理信息化建设的重要组成部分之一就是实现检修设备管理的信息化.针对上海车辆段信息屏检修管理的实际需要,设计了一套基于SQL Server数据库的检修管理系统.该系统使用具有非接触式标签识别功能的设备,使得管理工作更加方便和高效.在上海车辆段实际使用后,表明该管理系统能满足实际需要,得到车辆段的充分肯定.同时,它也为其它检修设备的管理系统的设计提供了很好的借鉴.     

铁路信息服务管理系统的功能与特点

提高信息服务质量,离不开必要的工具.市场上的工具功能不全面,系统开销大,不够适用.铁路信息部门从信息系统运营实际需要出发,开发了自己的信息服务管理系统.功能全面,简约适用,系统开销小,克服了通用系统的弊病,具有突出的优点.     

燕山石化铁路运输信息系统的设计与开发

在对燕山石化铁路运输部的业务情况进行调研和分析的基础上,对燕山石化铁路运输管理信息系统的设计、功能模块划分、系统结构和系统实施等方面进行了介绍,同时,还介绍了燕山石化铁路运输部开发信息系统的经验.     

铁道部计算机网络安全技术方案、效果及成功案例

针对铁道部网络安全的现状,提出解决问题的技术方案,并对其效果进行说明.铁道部计算机网络安全技术方案的主要内容包括:铁路系统信任体系的建设,对互联网边界、局域计算环境、网络基础设施进行的保护,以及复杂网络系统的集中式安全管理.并通过铁道部网络安全工程的成功案例,展现在纵深防御体系基础上实现的网络访问控制功能.最后,对本方案的应用前景进行了展望.     

A GIS‐based traffic analysis zone design: technique

The main purpose of this paper is to develop an efficient method to design traffic analysis zones (TAZs), which is necessary for implementing a planning process with Geographic Information System (GIS) for Transportation (GIS‐T), using statistical spatial data analyses and GIS technology. The major roles of GIS in this method are: (1) to produce basic spatial units (BSUs) with topological data structure; (2) to integrate various procedures during the TAZ generation including computer program routines; and (3) to visualize the output of each TAZ generation. One of the most significant reasons for obtaining well‐defined TAZs is the fact that they are defined at the outset of transportation demand modeling, used from trip generation to trip assignment, and will ultimately affect transportation policy decisions.

Toward obtaining well‐defined TAZs, this paper concentrates on two important constraints: homogeneity and contiguity. Iterative partitioning technique is adopted to promote the optimum homogeneity of generated TAZs, while a contiguity checking algorithm is developed to ensure contiguous TAZs are generated by the iterative partitioning technique.     

Monitoring Loggerhead Sea Turtle (Caretta caretta) Nests in Turkey Using GIS

Both the loggerhead sea turtle (Caretta caretta) and the green turtle (Chelonia mydas) live, feed, and nest in the Mediterranean, mostly on the beaches of Turkey and Greece. The greatest threat to the survival of Caretta caretta has been found to be on the sandy beaches where their lives begin. In this study, the digital terrain model (DTM) of the Iztuzu Beach in Turkey where the Caretta caretta sea turtles lay their eggs was prepared using a global positioning system (GPS) and a geographic information system (GIS). A flexible coastal geographic information system was prepared integrating the DTM with digitally processed satellite images and ground truth of the nesting area and its surroundings. Researchers, decision makers, other end users, or sea turtle experts can find and query any environmental information having a possible impact on the nesting area using a computer-based GIS database. A multidate monitoring of the nesting area allows users to extract and compare much information about the location and condition of the nests and will help researchers develop better strategies for protecting sea turtles.     

An analysis of internal transit systems requirements for central cities

The deficient performance of existing downtown transit distribution systems may significantly affect the overall performance of the urban transportation system in many metropolitan areas. This paper has two principal objectives. First, it describes an approach entitled Performance Requirements Analysis for developing a set of requirements or standards that a downtown transit system should satisfy and structuring these requirements so as to generate a small set of alternative generic systems for detailed evaluation. Second, it provides a preliminary assessment of performance requirements for distribution systems in 19 of the largest cities in the United States.     

香港地区实施ISM工作现状及思考

文中介绍了香港地区实施ISM规则(国际安全管理规则)机构、立法及实施的相关情况,着重分析了《香港商船(安全)条例》涉及ISM规则的有关规定和执行,总结了香港地区航运公司管理和实施ISM规则的特点,提出了国内ISM/NSM规则的实施及相关工作的建议。