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Imports and Exports by Major Trading Partners

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China & World Economy 2005年第5期13卷 125-126页

作者： General Administration of Customs,prc. General Administration of Customs PRC.

Imports and Exports by Major Trading Partners June 2012

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China & World Economy 2012年第2期20卷 123-124页

作者： General Administration of Customs,prc. General Administration of Customs PRC

Imports and Exports by Major Trading Partners December 2013

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China & World Economy 2014年第2期22卷 125-126页

作者： General Administration of Custonms,prc. General Administration of Custonms PRC.

Imports and Exports by Major Trading Partners February 2012

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China & World Economy 2012年第3期 125-126页

作者： General Administration of Customs,prc. General Administration of Customs PRC

THE EFFECT OF NUMERICAL INTEGRATION IN FINITE ELEMENT METHODS FOR NONLINEAR SOBOLEV EQUATIONS

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同方期刊数据库

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Numerical Mathematics A Journal of Chinese Universities(English Series) 2000年第2期9卷 222-233页

作者： N’guimbi Germain (Department of Mathematics, Shandong University, Jinan 250100, prc.)

We study the effect of mumerical integration in Finite Element Methods for nonlinear sobolev equations and give some sufficient conditions on the quadrature scheme to ensure that the or- der of convergence is unaltere... 详细信息

关键词： finite element quadrature schemne elliptic projection error estimates.

BOUNDS FOR SINGULAR INTEGRALS ASSOCIATED WITH A CLASS OF HYPERSURFACES

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Analysis in Theory and Applications 1994年第2期10卷 24-31页

作者： Qiu Qirong Beijing Power Engineering & Economics Institute, China Beijing Power Engineering & Economic Instituts, Acta Math. Sinica Zhu Xinzhuang, Beijing, 102206, prc. Beijing Power Engineering & Economic Instituts Acta Math. Sinica Beijing PRC

For the hypersurface Γ=(y,γ(y)), the singular integral operator along Γ is defined by. Kf(x,x_n)=P.V.∫_R^(nl), f(x-y,x_n-γ(y))_(|y|^(n-1))^(Ω(y))dy, where Ω is homogeneous of order 0, ∫_∑_(1)Ω(y')dy'=0, For... 详细信息

关键词： Math der BOUNDS FOR SINGULAR INTEGRALS ASSOCIATED WITH A CLASS OF HYPERSURFACES Pro

Spectral Operators Generated by Partial Differential Equations of One-Dimensional Spatial Variable

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Spectral Operators Generated by Partial Differential Equatio...

Sincerely Devote Every Effort to the Development of World Electric Power

第二十二届中国控制会议

作者： Wang Junmin Department of Mathematics The University of Hong Kong Hong Kong prc.

＜正＞In view of the high research literatures on the Riesz-Basis-Property of control systems that appear recently and the wide range of tools that have been used with most of them are case-dependent, one is tempted to ask whether one can find a unified way to treat them. This task is not going to be easy because we are more often than not facing operators that are non-selfadjoint, with internal/impulse/boundary feedback controls, which are exactly where the classical theory fails. In this article, we announce an answer to this question by proving that a large class of operators possess the Riesz-Basis-Property.

关键词： Non-selfadjoint operators Asymptotic spectral analysis Generalized eigen-function Riesz basis property

来源： cnki会议评论

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cnki会议

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Electricity 1996年第3期 2-3页

作者： Northwest Electric Power Design Institute Ministry of Electric Power, prc.

The Northwest Electric Power Design Institute (NWEPDI) located in Xi’an City, Shaanxi Province, China, was established in 1956. There are now 1,742 staff, including 1,234 engineers in more than 30 specialities as follows: thermo-mechanical, coal handling, ash handling, electrical (main and secondary circuits), auxiliary power supply, illumination, I & C, architecture, structure, heating & ventilation, plant general layout, HVAC, water supply & discharge, hydrostructure, chemical water treatment, waste water treatment, technical-economics, construction organization design, environmental impact assessment,

关键词： World Sincerely Devote Every Effort to the Development of World Electric Power Project line

ECONOMIC　EVALUATION　OF　REDUCTION　OF　DEPOSITION　IN　THE　LOWER　YELLOW　RIVER　BY　THE　SANMENXIA　PROJECT

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International Journal of Sediment Research 1995年第3期 82-95页

作者： LI Guoying and TU Qihua Ministry of Water Resources prc. Reconnaissance Planning and Design Institute Yellow River Conservancy Commission (YRCC) prc

ＥＣＯＮＯＭＩＣＥＶＡＬＵＡＴＩＯＮＯＦＲＥＤＵＣＴＩＯＮＯＦＤＥＰＯＳＩＴＩＯＮＩＮＴＨＥＬＯＷＥＲＹＥＬＬＯＷＲＩＶＥＲＢＹＴＨＥＳＡＮＭＥＮＸＩＡＰＲＯＪＥＣＴＬＩＧｕｏｙｉｎｇａｎｄＴＵＱｉｈｕａＡｓｓｉｓｔ... 详细信息

ＥＣＯＮＯＭＩＣＥＶＡＬＵＡＴＩＯＮＯＦＲＥＤＵＣＴＩＯＮＯＦＤＥＰＯＳＩＴＩＯＮＩＮＴＨＥＬＯＷＥＲＹＥＬＬＯＷＲＩＶＥＲＢＹＴＨＥＳＡＮＭＥＮＸＩＡＰＲＯＪＥＣＴＬＩＧｕｏｙｉｎｇａｎｄＴＵＱｉｈｕａＡｓｓｉｓｔａｎｔＣｈｉｅｆＥｎｇｉｎｅｅｒ，...

关键词： Economic evaluation reduction of deposition river channel aggradation