共查询到20条相似文献，搜索用时 0 毫秒
1.
This analysis aims to measure the impact of school choice policy on secondary school students’ enrolment patterns within the social geography of Vancouver, an increasingly polarized global city. The rationale for the study is to examine the impact of ‘education market’ reforms on the socio-economic composition of schools in a Canadian context, where a social welfare commitment to educational equality is being replaced by market-oriented policies and increasing social inequality. Our study is guided by Bourdieu’s theory of site in considering whether growing inequality and polarization of wealth in a city are correlated with the ways families choose schools. We apply a geographical methodology (Geographic Information System) to delineate spatial patterns of choosing schools. Our analysis shows that those who opt out of the under-subscribed schools come from the neighborhoods with relatively higher capital than those who remain in their assigned schools. Also, those who opt into the over-subscribed schools in the affluent areas come from the neighborhoods with above-average levels of capital in Vancouver. Overall, we find that the spatial inequality in school choice generally follows the uneven distribution of capital/wealth across the city. The pattern of student mobility indicates an increasing level of segregation. 相似文献
2.
INTRODUCTION With the rapid increase of geographic information on the Internet, WWW (World Wide Web) contains a great deal of information that can bgeo-referenced. The National Academy of Sciences oAmerica estimates that 80 percent of the informationon the Web is composed of spatial information thaincludes coordinate information, such as longitudelatitude and their various kinds of projections, mailingaddresses that can be geo-coded, relative distance anddirection information. W… 相似文献
3.
World Wide Web(WWW)is a vast repository of information,including a great deal of geographic information.But the location and retrieval of geographic information will require a significant amount of time and effort. In addition,different users usually have different views and interests in the same information. To resolve such problems,this paper first proposed a model of geographic information gathering based on multi-Agent(MA)architecture. Then based on this model,we construct a prototype system with GML(Geography Markup Language). This system consists of three tiers-Client,Web Server and Data Resource. Finally,we expatiate on the process of Web Server. 相似文献
4.
Market theory positions the consumer as a rational choice actor, making informed schooling choices on the basis of ‘hard’ evidence of relative school effectiveness. Yet there are concerns that parents simply choose schools based on socio-demographic characteristics, thus leading to greater social segregation and undercutting the potential of choice to drive quality improvements. In this paper, we explore segregation by examining catchment areas for a range of public high schools in a specific middle-class urban area. We focus on socio-demographic characteristics, including levels of income, country of birth and religion affiliation, in order to explore residential segregation according to public high school catchment areas. Our data suggest distinct residential segregation between catchment areas for each public school within our data-set, particularly for the schools deemed to be popular and rejected, that may pose risks for broader equity concerns. We argue that, in contrast to market theory, even more affluent and active choosers are not equipped with information on the programmatic quality of their different school options, but instead may be relying on socio-demographic characteristics of schools – through surrogate information about the urban spaces that the schools occupy – in order to choose peer groups, if not programmes, for their children. 相似文献
5.
6.
地理信息系统在地下水环境质量评价中的应用 总被引：1，自引：0，他引：1
地下水质量评价方法很多,各种方法的评价模式、评价标准和质量分级等方面都不尽相同.在介绍水资源评价与地理信息系统(GIS)技术之后,对二者之间的合理结合进行探讨,并提出了解决方法.利用所提方法对淮南市区浅层地下水质量进行了评价,实现了影响因素数据输入-分析-管理-显示输出的计算机化. 相似文献
7.
王小玉 《西安文理学院学报》2006,9(1):44-47
为实施管道安全风险评估,需要收集、存储和处理大量的管道信息,为此开发一套全国石油天然气管道安全管理信息系统.该系统在Microsoft Visual Basic 6.0环境下设计了一系列可视化界面并通过Access数据库解决了管道地理信息和属性信息的动态管理,在电子地图上利用MapInfo MapX 5.0控件实现了管线图形的动态管理,并通过管线内插节点解决了大跨度管线图形的正常显示及MapX节点编辑模式下系统异常的问题.该系统已被用户用于石油天然气管道信息管理,效果良好. 相似文献
8.
GPS/GIS车辆监控管理系统中的关键技术 总被引：1，自引：0，他引：1
简要论述了车辆监控管理系统的工作原理及通信链路的选择策略,针对一套实用的GPS／GIS车辆监控系统设计方案,详细阐述了系统设计中的关键技术． 相似文献
9.
校园地理信息系统的构建 总被引：2，自引：0，他引：2
为实现校园地理信息系统的构建,将地理信息系统的控件应用到可视化的编程环境中,进行GIS的二次开放,实现对校园资源的地理分布的空间特征以及校园资源属性特征的综合管理,系统数据库以Access进行管理,在VC＋＋环境下开发前端应用平台,利用ADO动态数据连接引擎实现数据通信;利用MapX组件技术,采用嵌入式集成方式,实现空间分析、查询等专业应用与基本地理信息功能的有机集成． 相似文献
10.
Modelling spatial vagueness based on type-2 fuzzy set 总被引：2，自引：0，他引：2
INTRODUCTION In current Geographic Information System (GIS), spatial objects such as points, lines, and regions that are kept in the database, are supposed to be precisely defined, sharp objects. Examples of these sharp ob- jects are cities, roads, and regions. Their boundaries are sharp. But firstly, as we know, some spatial ob- jects are not sharp by themselves, e.g., forest cannot always be sharply defined. Moreover, errors can happen during measurement. We cannot find the exact bou… 相似文献
11.
本文通过阐述REIS的概念、特征和我国REIS的研究概况,提出了建立省级REIS对区域经济发展的重要性和必要性,并以广东省为例,对资源环境信息系统分类作了进一步探讨。 相似文献
12.
13.
14.
CHEN Su-shing GRUNWALD Sabine 《浙江大学学报(A卷英文版)》2005,6(11):1235-1248
INTRODUCTION A large number of environmental digital librar- ies have been designed and implemented recently to effectively manage environmental data such as satel- lite photos and images, map images, cartographic materials, and so on. Support for storing, distributing, searching for, retrieving, and utilizing this informa- tion is imperative in order for it to be used to its maximum potential benefit and effectiveness (Hicks and Tochtermann, 1998). The variability of envi- ronmental data… 相似文献
15.
William J. Ritchie Joseph Kerski Luis J. Novoa Mert Tokman 《Decision Sciences Journal of Innovative Education》2023,21(2):83-94
This teaching brief explores how and why location analytics should be taught in business schools using three objectives. First, an explanation is provided for the importance of including location analytics in the standard business school curriculum—especially in the field of supply chain management. Second, a lack of GIS-based location analytics methods in business school curricula is demonstrated. Third, a three-part location analytics exercise is introduced to contribute to the supply chain management curriculum. The proposed exercise utilizes the output of a GIS-based location analytics software (namely, Esri's ArcGIS Online) as the input for a location set covering problem that can be solved using an integer programming solver. The exercise can also be used as a stand-alone example of GIS in a supply chain management course. This teaching brief aims to (1) develop a new method to use in teaching location analytics in supply chain management and analytics courses and (2) bridge an important gap between supply chain management practice and curriculum. 相似文献
16.
关于GIS应用型人才培养的思考 总被引：6，自引：0，他引：6
GIS人才的培养目前主要分为三个层次,即科研型、开发型和应用型,其数量应呈金字塔形,应用型人才的数量最大,根据今后GIS的普及和推广,种类应用型人才的需求量会不断增加,本文重点分析了GIS应用型人才培养的重要性、可行性,阐述了培养GIS应用型人才应做的工作。 相似文献
17.
蒋丹 《荆门职业技术学院学报》2010,(11):13-17
随着现代旅游业的快速发展,图文声像导游方式和实地口语导游方式都已经不能满足现阶段旅游者的需求,信息化的飞速发展造就了地理信息系统（GIS）和全球定位系统（GPS）,促使消费者更多的选择自助游和自驾游等方式出行。而近年来高等院校的发展使得高校也成为了一个景点。如何让游客以最短的时间到达旅游目的地就是本文所寻求解决的问题。文章通过最短路径算法结合图像化的表示方法,并结合实际情况以高等院校为例采集所需要的数据,在Visual C＋＋开发环境下模拟设计导游咨询系统,理论上使得游客可以轻松的寻找到最适合自己的旅游线路,并以此为依据合理安排自己的行程。 相似文献
18.
提出了基于MapX的地理信息系统多媒体辅助教学系统的设计思路．根据地理信息系统的教学要求,结合当今多媒体技术的发展趋势,在VC++6．0开发环境下,完成了GIS计算机多媒体辅助教学系统的设计与实现,通过多媒体技术与GIS技术的有机结合形成教学、演示与GIS操作三位一体的GIS计算机多媒体辅助教学系统．该系统将学生置于多重立体交互教学状态下,在GIS的实际操作环境中了解并掌握GIS系统的基础知识、基本操作以及应用特色最终实现GIS教学手段的现代化,达到提高GIS教与学高度统一的目标． 相似文献
19.
葛坚 《浙江大学学报(A卷英文版)》2004,5(9):1028-1034
In this research, the residential environment index system and evaluation model were established by means of subjective and objective methods. The methodology for establishing the evaluation system for residential environment was first analyzed; then the subjective evaluation data-base was established by questionnaire survey; and at the same time, the objective evaluation data-base was constructed by Geographic Information System (GIS); and then the related equation system between subjective and objective system was developed by multiple regression analysis. This research could benefit evaluation of the residential environment quality for various purposes, and also provide important rudimentary data-base for the development and improvement of residential environment for officials. Furthermore, the index system and evaluation model established in this research could construct a strong relation between subjective evaluation and objective data; and thus could provide a comprehensive, efficient and effective methodology for the evaluation of residential environment. 相似文献
20.
Residential environment index system and evaluation model established by subjective and objective methods 总被引：1，自引：0，他引：1
In this research, the residential environment index system and evaluation model were established by means of subjective and objective methods. The methodology for establishing the evaluation system for residential environment was first analyzed; then the subjective evaluation data-base was established by questionnaire survey; and at the same time, the objective evaluation data-base was constructed by Geographic Information System (GIS); and then the related equation system between subjective and objective system was developed by multiple regression analysis. This research could benefit evaluation of the residential environment quality for various purposes, and also provide important rudimentary data-base for the development and improvement of residential environment for officials. Furthermore, the index system and evaluation model established in this research could construct a strong relation between subjective evaluation and objective data; and thus could provide a comprehensive, efficient and effectiv 相似文献