The impact of residential desegregation on social integration: Evidence from a South African neighbourhood     

Charlotte Lemanski 《Geoforum》2006,37(3):417-435

This paper analyses the potential for social integration in post-apartheid urban South Africa by examining the lives of those already living in desegregated spaces. The case study is a low-cost state-assisted housing project situated in the wealthy southern suburbs of Cape Town. In this social housing project, named Westlake village, coloured and Black African (alongside a handful of white and Indian) residents were awarded state housing in 1999 as replacement for their previous homes (informal and formal), which were demolished to make way for a mixed land-use development, of which their new homes form a small component. Westlake’s desegregation is found to extend beyond mere residential abode, affecting resident’s everyday lives to the extent that apartheid’s history and geography are superseded by other factors (such as proximity and affordability) in decision-making. Furthermore, integration at the everyday level of informal neighbourly mixing is prevalent. Although more formal cross-race friendships are rare, discussion reveals this as a consequence of Westlake’s specific socio-historic identity rather than racial divisions per se. Empirical evidence is used to propose a continuum of social integration experience. This continuum addresses the form of integration, for example greeting in the street, visiting homes, inter-marriage; and also the spaces of integration, for example physical space (shared neighbourhood), economic space (common employment-type), social space (cross-race friendship), political space (common involvement in civic organisations) and cultural space (shared sense of belonging).  相似文献   

宽带接入用户认证技术分析与比较   总被引：2，自引：0，他引：2  

张卫锋  郭科  李加华 《物探化探计算技术》2003,25(2):173-177

给出了一个宽带接入用户认证系统的基本模型，并基于此模型对目前被广泛应用的PPPoE、WEB、DHCP等用户认证技术进行了分析与比较。最后，简单介绍了用户认证技术的新成员-802．1x(Port Based Network Access Control Protoco1)协议。  相似文献   

广州市北京路步行街旅游形象策划   总被引：2，自引：2，他引：2  

刘水良  吴吉林  徐颂军 《云南地理环境研究》2005,17(2):65-68

商业步行街是当今城市旅游购物和休闲的一个重要场所。广州市北京路是广州历史和现代有名的商业街之一,也是广州的一个著名景点。为了更好地包装广州市北京路的旅游形象,在详细分析其旅游文脉和旅游发展现状的基础上,采用企业识别系统的相关理论,对该区旅游形象MI、BI、VI三个方面进行了较为科学的策划。认为广州市北京路应突出“岭南第一街”的特点,对步行街的企业行为系统、市民行为系统等进行有效管理和规范,并改善现有的视觉景观和视觉标志,着力塑造一个集旅游观光、购物消费和休闲娱乐于一体的旅游形象。  相似文献   

基于医疗联盟链的数据安全保护方法     

孙回  程徐  黄琤  陈付龙 《南京气象学院学报》2019,11(5):567-572

随着互联网的飞速发展,医疗数据爆炸性增长,大量的医疗数据面临着安全共享问题.本文提出了一种基于医疗联盟链的数据安全保护方法,其中包括提出了一种安全认证与访问控制模型,并将查询逻辑分离存储技术引入该模型中,同时描述了基于医疗联盟链的认证凭据和访问权限数据的存储和访问.基于医疗联盟链的安全认证与访问控制模型包含了三个角色,第一角色是患者,第二角色是医护人员,第三角色是医疗联盟链.通过查询逻辑分离存储技术保护患者数据隐私,查询逻辑分离技术与医疗联盟链技术紧密结合,满足了不同医院之间医疗数据共享的需求,保障了患者的数据隐私和医护人员查阅数据的权限.  相似文献   

信息安全实验管理系统的实现及其系统中安全问题的解决     

肖霞  周安民  孙立鹏 《成都信息工程学院学报》2007,22(1):101-104

B／S模式的应用系统都要面对安全的问题，身份认证和访问控制是实现计算机安全的主要手段。介绍了基于Web的信息安全实验管理系统，分析了系统的体系架构和功能，针对B／S模式的安全威胁，采用了两个方案实现身份认证和访问控制。  相似文献   

运用ULBP的高分辨率遥感影像感知哈希完整性认证算法     

刘明轩  张黎明  王昊  马文骏  李玉 《测绘通报》2021,(12):22-27

针对现有高分辨率遥感影像感知哈希认证算法中特征提取精度和算法稳健性不能兼顾的问题,本文提出一种运用ULBP的高分辨率遥感影像感知哈希完整性的认证算法。首先对遥感影像进行格网划分,将影像划分为多个子块,运用ULBP算法提取子块的纹理特征;然后计算每个子块内纹理特征的直方图分布,将其结果与均值二值化后得到子块的感知哈希序列;最后串联所有子块的感知哈希序列生成整幅影像的感知哈希值。在影像认证时,首先计算原始影像与待检测影像的哈希序列,然后计算两者的感知哈希序列平均汉明距离,完成对高分辨率遥感影像内容的完整性认证与篡改定位。试验表明,该算法能够识别高分辨率遥感影像中地物较为平滑的区域,同时对JPEG压缩、高斯噪声添加、BMP格式转换等操作具有良好的稳健性,为高分辨遥感影像完整性认证提供支持。  相似文献   

基于现有动态口令身份认证技术的分析与改进     

文小波  张洪刚 《成都信息工程学院学报》2006,21(6):857-861

身份认证对于保证信息只被合法授权用户获取和访问起着重要作用，因而建立强有力的身份认证机制成为信息安全的关键之一。以现有动态口令身份认证主流技术为参照，提出了一种动态口令同步认证方法，以实现动态口令安全性、有效性与同步程度、验证效率之间的最优化配置。  相似文献   

Geographies of citizenship and everyday (im)mobility     

《Geoforum》2015

This introduction and the collection of papers it introduces seek to progress debates on the intersections between citizenship, practice, materiality, and mobility. In contrast to more static framings of formal citizenship where subjects are considered equal in terms of enjoying the same safeties and freedoms, in this introduction citizenship is conceived of as a set of processual, performative and everyday relations between spaces, objects, citizens and non-citizens that ebbs and flows. Through the papers that comprise this collection we see the process of citizenship becoming fragmented in both urban and rural mobility spaces. We also see it as being shaped by particular technologies and artefacts which construct and relate mobile subjects to each other and the state in particular ways. Our key contribution lies in outlining three related areas where work informed by the mobilities turn could focus: Firstly we seek to demonstrate that far from being a product of citizenship status, mobility must be seen as actively constituting citizenship relations. Secondly we seek to demonstrate the roles that styles of movement and the ‘stuff’ of mobility play in shaping the extent of citizenship for particular mobile publics. Thirdly we illustrate the ways in which cross-border flows relating to concepts such as cosmopolitan and ecological citizenship can act through mobility practices to challenge locally held notions of appropriate mobility and inevitably citizenship. Ultimately what we argue and intend to demonstrate is that mobility is such an important, pervasive and politicised element of late modernity that the ways in which we move and confer meanings on movement, cut across and even over-ride more established relationships between social and cultural identity, citizenship and the state.  相似文献   

RADIUS协议研究及在VOIP中的应用     

吴贞东  曾德胜 《成都信息工程学院学报》2006,21(6):837-840

对RADIUS协议进行了深入研究，给出了基于RADIUS协议的具有数据采集、认证授权、计费处理、查询统计和系统管理功能的VOIP安全认证计费系统设计与实现方案；系统可运用于IP电话安全认证和灵活计费。  相似文献   

中国气象科学数据共享服务网认证系统的设计与应用   总被引：1，自引：1，他引：0       下载免费PDF全文

何小明 《应用气象学报》2004,15(Z1):45-49

介绍了一个安全、实用的分布式网络用户身份认证系统的设计和应用.着重阐述了在IBM Websphere构架下,应用Web Service技术,设计和实现网络用户的统一认证和单点登录,以及认证系统的架构与接口设计、安全性设计、主节点全局用户统一认证模块设计、分节点用户认证集成接口模块设计等.  相似文献