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On the Integrality of characteristic elements in Nonabelian Iwasawa Theory

Acta Mathematica Sinica,English Series 2008年第1期24卷 43-58页

作者： Ling Quan KONG School of Mathematical Sciences Beijing Normal University Beijing 100875 P. R. China

This paper is concerned with a conjecture formulated by Coates et al in [4] which describes the relation between the integrality of the characteristic elements and their evaluations in the noncommutative Iwasawa theor... 详细信息

关键词： p-adic Lie group K group characteristic element Iwasawa theory

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Method to Determine Depositional Range of Sediment Transported from Multiple Sources in Water Area

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China Ocean Engineering 1995年第3期10卷 345-354页

作者： Ying Qiang , Jing Fei Ma Jin Rong Engineer, Nanjing Hydraulic Research Institute, Nanjing 210029 Lecturer, Nanjing College of Navigation Engineering, Nanjing 210018 Assistant Engineer, Nanjing Hydraulic Research Institute, Nanjing 210029

- The sediment from different sources have different content of the characteristic elements. According to the fuzzy mathematical theory, corresponding calculation and cluster analysis of each sediment sample are carried out, so the main courses of sediment transport in water area can be obtained. The characteristics of sediment from different sources are analysed. It is found that the sediment deposited of certain point in water area is due to the sources' contributions which can be calculated by the formula derived in this paper. Based on the distribution of the contribution values, the depositional range of sediment from each source can be determined. The depositional range in Huangmao Bay is determined as an example.

关键词： characteristic element fuzzy matrix cluster contribution depositional range

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Research on Variable Structure Parametric Design System of Ceramic Tile Mould Based on Modular

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Computer Aided Drafting,Design and Manufacturing 2014年第2期24卷 67-73页

作者： DAI Xiao-bo DONG Yu-de QIN Lei College of Mechanical and Automotive Engineering Hefei University of Technology Foshan Pengcheng Ceramics Machinery Co.

To solve the existing problems during the ceramic mold enterprises product design and development process, the variable structure parametric design system based on modular of ceramic mold has been developed. The system uses the object-oriented technology and top-down design concept as a guide, establishes a ceramic mold parametric design process, divides the process of ceramic mold design into modules of different levels and creates a component model library based on the functional analysis. Expanding modular thinking to parts structure design level is an effective solution to the difficulty of changing the structure during the product design process. Examples show that the system can achieve a ceramic mold product design, improve design efficiency.

关键词： modular parametric design corporate design features characteristic element

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