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key scientific issues for Regional Sustainable Development in Northeast Asia

Journal of Resources and Ecology 2011年第3期2卷 250-256页

作者：董锁成李宇李飞李世峰李泽红杨旺舟李富佳毛琦梁王卷乐朱华忠刘佳骏徐新良中国科学院地理科学与资源研究所北京100101 中国农业大学工学院北京100083 云南师范大学经济管理学院昆明650500

Within the context of global climate change, achieving sustainable development in Northeast Asia will require in-depth research into the key scientific issues from both theoretical and empirical perspectives. This paper assesses that the main issues to be addressed are：（i） researches on the structure, function and differentiation disciplines of the vast and complex regional resources-environment-socio-economic system that is Northeast Asia and on how the region can respond and evolve. （ii） Failing to find a mode for sustainable development is one of the most serious restrictive factors to development in Northeast Asia. （iii） Development of cross-border regional socio-economic models for sustainable development is essential. And （iv） the strategies above require cross-border technical support platforms to guarantee a consistent approach to regional sustainability in Northeast Asia.

关键词： Northeast Asia regional resources-environment-socio-economic giant complex system sustainable development key scientific issues

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The States-of-arts and key scientific issues on Durability Research of Concrete Structures

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Journal of Wuhan University of Technology(Materials Science) 2006年第Z1期21卷 1-8页

作者：金伟良赵羽习 College of Civil Engineering and Architecture Zhejiang University Hangzhou 310027 China

Concrete has traditionally been regarded as a durable material requiring little or no maintenance. However, over the past several decades, a number of durability related problems have emerged and stimulated research into the factors relating to concrete durability globally. The challenge now facing practicing engineers is how to design and build structures that not only satisfy the specified structural requirements, but also achieve the performance levels required from a durability standpoint. Research works on concrete structural durability have been widely reported in the literature over the last several decades. In this paper, reviews of four stages of research work on durability, i e, environments, materials, components, and structures, were presented. Afterwards, the key scientific issues in this field were also pointed out.

关键词： concrete structures durability state of the art key scientific issues

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