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斜拉网壳结构构件单元分析及结构动力性能 被引量:3
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作者 沈祖炎 周岱 龚铭 《同济大学学报(自然科学版)》 EI CAS CSCD 北大核心 2000年第2期127-133,共7页
阐明了斜拉索及塔柱的计算问题 ,数值计算、分析了斜拉网壳结构的动力性能问题 ,并与网壳结构计算结果进行了对比 .计算分析表明 ,斜拉网壳结构频谱密集 ,与网壳结构的对应振型差别很大 ;斜拉索的存在大大提高了网壳结构的刚度 ,明显改... 阐明了斜拉索及塔柱的计算问题 ,数值计算、分析了斜拉网壳结构的动力性能问题 ,并与网壳结构计算结果进行了对比 .计算分析表明 ,斜拉网壳结构频谱密集 ,与网壳结构的对应振型差别很大 ;斜拉索的存在大大提高了网壳结构的刚度 ,明显改变了网壳结构动力性能 ; 展开更多
关键词 斜拉索 塔柱 动力性能 斜拉网壳结构 空间结构型式 单元刚复 无阻尼自由振动 自振频率
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Dual Lie bialgebra structures of Poisson types 被引量:4
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作者 SONG Guang'Ai SU YuCai 《Science China Mathematics》 SCIE CSCD 2015年第6期1151-1162,共12页
Let A = F [x, y] be the polynomial algebra on two variables x, y over an algebraically closed field F of characteristic zero. Under the Poisson bracket, A is equipped with a natural Lie algebra structure. It is proven... Let A = F [x, y] be the polynomial algebra on two variables x, y over an algebraically closed field F of characteristic zero. Under the Poisson bracket, A is equipped with a natural Lie algebra structure. It is proven that the maximal good subspace of A* induced from the multiplication of the associative commutative algebra A coincides with the maximal good subspace of A* induced from the Poisson bracket of the Poisson Lie algebra A. Based on this, structures of dual Lie bialgebras of the Poisson type are investigated. As by-products,five classes of new infinite-dimensional Lie algebras are obtained. 展开更多
关键词 algebra Poisson commutative maximal associative infinite triangular polynomial multiplication subspace
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The theory of information images: Modeling based on diffusion equations
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作者 Alexandr Y. Petukhov Sofia A. Polevaya Vladimir G. Yakhno 《International Journal of Biomathematics》 2016年第6期139-150,共12页
This work represents a formalized description of information and communicative interac- tions of individuals on the basis of theory of information images (II). It also demonstrates how important it is to choose the ... This work represents a formalized description of information and communicative interac- tions of individuals on the basis of theory of information images (II). It also demonstrates how important it is to choose the models type adequate to the systems under research. It also introduces an explication of the possibility to create the model of information and communication interactions that can illustrate transmission of information between two and more individuals. Methods and approaches suggested in this paper allow us to compare different levels of the described processes depending on the chosen architecture of the model; the methods and approaches mentioned in the current work can be also used to simulate the processes of distortion and generation of information images while information and communication social interaction. Expansion and addition of informa- tion images theory in terms of transmission of information among individuals enables us to speak about the space of individual II. The existence of such a space and creation of correct formalized model help us to explain a number of characteristic phenomena of human thinking processes. As a result of this research, the authors introduce an equa- tion that describes the spatial and structural evolution of individual II. There is also an example of modeling on the basis of this theory taking into account the results of the experiment (bilingual Stroop test). 展开更多
关键词 Communication field information image the information images space vir-tual particles bilingual Stroop test.
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