大大改善城市贫民窟居民的生活——可持续发展世界首脑会议关于城市可持续发展的承诺

联合国可持续发展世界首脑大会于2002年8月26日至9月4日在南非的著名城市约翰内斯堡举行。来自世界192个国家的政府代表团，104位国家元首或政府首脑，国际组织以及非政府主要人群的代表2万余人出席了会议。这是一次关乎人类前途与地球未来的重要里程碑的会议，会议成果举世瞩目。4000多位媒体代表昼夜不停地向全世界报道大会的盛况。我国由朱基总理率政府代表团出席。建设部汪光焘部长也在会议期间访问了约堡。 经过各国与会代表的共同努力，首脑会议通过了《约翰内斯堡可持续发展承诺》和《可持续发展问题世界首脑会议执行计划》两个重…     

向全球贫民窟居民提供水和环境卫生

值“世界水周”会议在斯德哥尔摩召开之际，联合国人居署及其合作伙伴亚洲开发银行主持召开了一个研讨会。在会上，众多权威国际专家讨论了最新观点，即向贫民窟居民提供水和环境卫生是可持续贫民窟改造的基础。[第一段]     

里约热内卢:巴西贫民窟的生活风险

里约热内卢是超过1000万人的家园,其中,近三分之一人口居住在贫民窟,这些贫民窟称作favelas.许多贫民窟居民原来是非法占住者,其中绝大多数人对他们的住房缺乏合法的所有权.     

让贫民窟中的妇女成为千年目标的监护者

世界各国的领导人签署了千年发展目标并将其作为消除贫困的新蓝图，他们的这一承诺受到了全球的普遍欢迎。但是和所有的好想法一样，如何将这些承诺以实践中可行的方式转化为现实才是发展过程中面临的真正挑战。     

需要与贫民窟的风景园林

City life seems to be predestined to radiate a vibrant,active and almost constantly enjoying experience.For ages city life almost equaled this idea.The city was a platform on which energetic human streams,     

居民生活用气的安全措施

分析了居民生活用气事故的原因,讨论了相应的安全措施,包括安装过流安全阀、紧急切断电磁阀、燃气泄漏报警器和设置控制系统。     

A new interactive model for improving the learning performance of back propagation neural network

The Back Propagation Neural Network (BPNN) has been used widely in construction management, but in fact, the BPNN is limited by a non-optimum weight adjustment manner and negatively influenced the convergence results. For this reason, this paper proposes the Individual Inference Adjusting Learning Rate technique (IIALR) to enhance the learning performance of the BPNN. The mechanism of the weight adjustment in the IIALR is an individual learning rate for each weight. Furthermore, this paper also establishes the Batch-Online Weight Updating Frequency mode (BOWUF) for the IIALR model, so as to adjust the connected weight of the BPNN properly and effectively. Finally, three cases are used to verify that the IIALR model can be more effective than other modifications of the BPNN. The IIALR model is conducive for assisting with the decision making process of construction management.     

Solo dwellers and domestic spatial needs in the Helsinki Metropolitan Area,Finland

Abstract

Solo dwellers’ housing issues have received little attention in housing studies. This article addresses their domestic spatial needs in the context of the Helsinki Metropolitan Area (HMA) where dwelling sizes have decreased rapidly. A critical stance towards the trend of constructing small one-room apartments and related norm deregulation is based on the notion that dwellings should be at least 50?m² and contain more than one room in order to overcome the shortage of space experienced by solo dwellers (N?=?1453). Emphasizing the perspective of housing design, the findings provide insights into floor plan design by focussing on apartment types and sizes in relation to kitchen types and the experienced shortage of space. All in all, the article demonstrates that solo dwellers’ domestic spatial needs are more diverse than expected based on their household size and related public discussion on urban housing.     

从城市规划角度谈太原棚户区改造

通过分析太原居民棚户区现状特征，在明确棚户区改造目标和原则的前提下，提出从捆绑划片入手，建立改造模式，以使棚户区改造、实施和规划走上法制化道路，以此改善居住环境，提升城市品质。     

关于地质灾害村庄搬迁规划的思考

文章以长治市地质灾害村庄搬迁为实例．分析了地质灾害村庄的现状布局、生产生活等状况。主要探索了岭上、龙塘两个搬迁治理村庄的土地治理方法和措施,以及村庄搬迁的规划编制等问题,为类似村庄的治理和搬迁提供参考范例。     

提高混凝土耐久性的原理与实践

本文介绍了现代混凝土在耐久性方面存在的问题和混凝土的某些性能对耐久性的影响,引证了一个28d抗压强度不足20MPa,设计寿命达1000年的混凝土工程实例,与之相对应,概述了提高混凝土耐久性的技术措施。     

针对房地产开发领域违规变更规划 调整容积率问题 两部门再发“督察令” 专项治理须“回头看”

<正>住房和城乡建设部日前发出通知,要求各地在前一阶段工作基础上,深入推进房地产开发领域违规变更规划调整容积率问题专项治理工作。在通知中,住房和城乡建设部、监察部房地产开发领域违规变更规划调整容积率问题工作领导小组办公室对该项工作作出要求。