文化景观之热点议题

概述了文化景观在近期及可见未来的热点议题。在《保护世界文化和自然遗产公约》40周年庆典之际,突出强调了景观真实性和完整性、可持续景观管理议题,阐述了《全球景观公约》采纳的必要性,分析了联合国教科文组织近期通过的《关于城市历史景观的建议书》及其引发的争论,表述了对传统乡村景观、自然和人为因素威胁下的景观等议题的高度关注,指出针对热点景观议题亟须发展新战略、新政策,亟须国内、国际各个层面的通力协调与合作。     

中国南方喀斯特荔波世界自然遗产地保护与可持续发展

根据系统论的思想,科学分析了荔波世界遗产地的环境与发展压力,总结了荔波世界自然遗产地保护与可持续发展模式:依据"保护为主、科学发展、永续利用"的原则,按照"核心区保护为主、缓冲区治理与发展相结合、流域上游区防治结合"的保护理念,在遗产地采取保护性建设、发展和基础设施建设3种措施。同时指出,需建立或采取诸如世界遗产公约长效机制、国内外合作交流体系和流域综合治理机构等保护措施,以适应时代快速变迁、全球化进程加快等带来的机遇与挑战,真正实现遗产地保护与可持续发展。     

上海世博园后滩公园湿地景观设计

介绍了上海世博园后滩公园湿地的设计情况,包括其功能分区、水质目标、工艺流程、水质调控管理及预警系统等。2009年4月,清水区已达到很好效果,多项水质指标均已达到Ⅱ～Ⅲ类水体标准。生态湿地景观的多种独特功能提供了可观的经济效益、社会效益以及生态效益。     

Incidence of adenoviruses in raw and treated water

Adenoviruses are of major public health importance and are associated with a variety of clinical manifestations, i.e. gastroenteritis, eye infections and respiratory infections. The importance of water in the epidemiology of adenoviruses and the potential health risks constituted by adenoviruses in water sources and supplies are widely recognised. This study was conducted to assess the incidence of human adenoviruses in raw and treated water systems. Various raw and treated water were routinely monitored for the presence of adenoviruses, over a 1-year period (July 2000-June 2001). The supplies were derived from acceptable quality surface water sources using treatment processes, which conform to international standards for the production of safe drinking water. Adenoviruses were detected by firstly amplifying the viruses in cell cultures and then amplifying the extracted nucleic acids of these viruses using molecular techniques (nested PCR). The results indicated human adenoviruses present in 13 (12.75%) of the raw and 9 (4.41%) of the treated water samples tested. The combination of cell culture and nested PCR has proved to be a quick and reliable method for the detection of adenoviruses in water environments.     

世界博览会与建筑技术的发展

本文从建筑技术的角度入手，从建筑材料、结构、及相关技术等三方面，探讨了世界博览会对于建筑技术的发展所起到的展示和促进作用，初步探讨了世界博览会与建筑学发展之间的关系。     

世界氧化铝工业鸟瞰与展望

截止１９９７ 年底全球生产氧化铝的国家有２７ 个,氧化铝生产企业６４ 个,总生产能力５３ ２１５ｋｔ／ａ,平均每个厂的产能为８３２－１１ｋｔ／ａ。中国有氧化铝厂６ 个,总生产能力为３ ４６０ｋｔ／ａ。目前,氧化铝的制造成本约为１４８ 美元／ｔ;全球氧化铝产量在今后一段时间内的年平均增长率约为３－５％ 。     

农村水电增效扩容改造与世行贷款项目群管理比较研究

以农村水电增效扩容改造试点项目群及浙江省小水电世行贷款项目群为对象,比较研究了项目特性、管理政策、管理模式,以及项目实施流程和项目管理关键环节,在此基础上提出了细化项目约束分析、加强项目关键环节控制等优化我国项目群管理的建议,对优化我国类似项目群管理具有借鉴意义。     

THE PAPER ENIGMA MACHINE

The Enigma Machine is a complex electromechanical device used by the Germans in World War II to achieve what they thought was complete communications security. While the original machine weighed over 20?lbs, the central mechanics of the machine can be simulated manually by manipulating strips of paper. A Paper Enigma is presented that can be cut out of a single sheet of paper. The resulting simulator is compatible with the electromechanical original in that messages can be encoded on one, and decoded on the other. Copies of The Paper Enigma can be downloaded from http://mckoss.com/crypto/enigma.htm.     

2010年南非世界杯主办城市与赛场漫谈

4年一度的世界杯,总是能吸引全球人的目光。南非世界杯毫无疑问是2010年夏天的最大焦点,全世界的话题都集中在这项超级体育盛事上。本文主要介绍分析2010年南非世界杯的主办城市和主办赛场,并就世界杯赛场氛围及其文化延展进行探讨。     

Sharing Rivers for Peace,Development, and Security

Abstract

Water is a finite resource, and with the considerable upsurge in population, urbanization, and industrialization, it is also becoming an increasingly scarce resource. Many countries in the world rely on river waters, and many of those rivers are shared by two or more countries. Dams on those rivers have been a major source of tensions, disputes, and, in some cases, even conflict between riparian countries because dams could result in massive diversion of river flows. Those developments have, inter alia, highlighted the relevance and importance of the principles of international water law, as reflected in the United Nations Convention on the Law of the Non-Navigational Uses of International Watercourses. The World Commission on Dams has also underscored the importance of, and elaborated on, those principles with regard to dams on shared rivers. This article discusses and analyzes the recommendations of the Commission in this area, and compares them with the principles of international water law as enunciated in the United Nations Convention