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城市地下商业空间开发的隐忧与发展前景——以北京市地下空间开发为例
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作者 刘卉 《美术大观》 2013年第1期79-79,共1页
自20世纪80年代以来,北京等大城市通过建立地铁交通网、地下商业网,使地下空间的使用有了一定的规模,但与此同时,空间利用上也存在不少问题。
关键词 地下空间 复式层次空间 立体化发展
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关于绿色摩天楼的思考——解析杨经文的Nagoya Expo 2005 Tower
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作者 杨健 聂晨 《建设科技》 2011年第18期76-78,共3页
绿色建筑是未来建筑的趋势,杨经文在绿色建筑整体设计理论和方法上有独到的见地。本文通过分析Nagoya Expo 2005 Tower,试图对于杨经文绿色摩天楼的建构方法进行解析,进而总结出一些设计手法,以供我国摩天楼设计所参考。
关键词 绿色摩天楼 动态构图 可生长 自组织 复式空间
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Experiment research on mechanical behavior of the aluminum laminate in the low-high temperature
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作者 林国昌 谢志民 +1 位作者 万志敏 杜星文 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2007年第3期302-304,共3页
Aluminum laminate is one kind of the rigidizable composite materials and plays an important role in construction of the inflatable space structure(ISS),which has potential application in space in the future.But the st... Aluminum laminate is one kind of the rigidizable composite materials and plays an important role in construction of the inflatable space structure(ISS),which has potential application in space in the future.But the study of the predecessors mainly focuses on the research of the mechanical behavior in the room temperature,for this reason,mechanical properties of the aluminum laminate in low-high temperature have been studied in this paper.The failure mechanism of the aluminum laminate is also analyzed in the microscopic view by JCXA-T33 electron probe.The results show uhat the temperature has significant influence on the strength and Young's modulus of the aluminum laminate.With the increase of temperature,both the strength and Young's modulus of the aluminum laminate decrease.A model between Young's modulus of the aluminum laminate and temperatures is obtained by using Arrhenius equation.The predicted values by the model agree well with the experiment values. 展开更多
关键词 aluminum laminate rigidizable composite materials inflatable space structure mechanical behavior Arrhenius equation
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The(0,1)Type Green Form of a Complex Projective Space CP^n
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作者 卢克平 《Chinese Quarterly Journal of Mathematics》 CSCD 1993年第4期65-70,共6页
In this paper,the(0.1)-form heat kernel of a complex projective space of dimensions n is constructed cxplicitely.As an application of the(0.1)-form heat kernel,the(0.1)type Green Form of CP~
关键词 fubini-study metric (0 1)type Green Form (0 1)-form heat kernel
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On Completeness and Minimality of Random Exponential System in a Weighted Banach Space of Functions Continuous on the Real Line 被引量:3
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作者 Zhiqiang GAO Guantie DENG 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 2006年第3期303-310,共8页
In this paper, the completeness and minimality properties of some random exponential system in a weighted Banach space of complex functions continuous on the real line for convex nonnegative weight are studied. The re... In this paper, the completeness and minimality properties of some random exponential system in a weighted Banach space of complex functions continuous on the real line for convex nonnegative weight are studied. The results may be viewed as a probabilistic version of Malliavin's classical results. 展开更多
关键词 Complete Minimal CLOSURE Random exponential polynomials
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Inequalities of Eigenvalues for the Dirac Operator on Compact Complex Spin Submanifolds in Complex Projective Spaces
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作者 Daguang CHEN Hejun SUN 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 2008年第2期165-178,共14页
For a compact complex spin manifold M with a holomorphic isometric embed- ding into the complex projective space,the authors obtain the extrinsic estimates from above and below for eigenvalues of the Dirac operator,wh... For a compact complex spin manifold M with a holomorphic isometric embed- ding into the complex projective space,the authors obtain the extrinsic estimates from above and below for eigenvalues of the Dirac operator,which depend on the data of an isometric embedding of M.Further,from the inequalities of eigenvalues,the gaps of the eigenvalues and the ratio of the eigenvalues are obtained. 展开更多
关键词 EIGENVALUE Dirac operator Yang-type inequality Test spinor
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