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Optical characteristic and gap states distribution of amorphous SnO_2:(Zn,In) film
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作者 张治国 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第12期515-519,共5页
In this paper the fabrication technique of amorphous SnO2:(Zn, In) film is presented. The transmittance and gap-states distribution of the film are given. The experimental results of gap-states distribution are com... In this paper the fabrication technique of amorphous SnO2:(Zn, In) film is presented. The transmittance and gap-states distribution of the film are given. The experimental results of gap-states distribution are compared with the calculated results by using the facts of short range order and lattice vacancy defect of the gap states theory. The distribution of gap state has been proved to be discontinuous due to the short-range order of amorphous structure. 展开更多
关键词 TRANSMITTANCE amorphous film gap states distribution
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STUDY ON GAP DISTRIBUTION IN MOVABLE SLEEVE-TOOTH DRIVE
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作者 Li Mingshan Li Huamin Harbin Institute of Technology Zhou Youqiang Beijing Graduate School of China University of Mining and Technology 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 1997年第4期60-65,共3页
A new method for calculating the gap distribution in the movable sleeve tooth transmission is presented. The non linear equations on analyzing the gap distribution are established with the method of equivalent m... A new method for calculating the gap distribution in the movable sleeve tooth transmission is presented. The non linear equations on analyzing the gap distribution are established with the method of equivalent mechanism and are solved successfully. 展开更多
关键词 Movable sleeve tooth transmission gap distribution Equivalent mechanism
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Visualization of particulates distribution from electrode erosion
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作者 钟伟 徐翱 +1 位作者 刘云龙 陈磊 《Plasma Science and Technology》 SCIE EI CAS CSCD 2018年第2期144-147,共4页
Particulates generated from electrode erosion in gas spark gap is inevitable and may initiate selfbreakdown behavior with high risk.Traditionally,this problem is addressed by empirical method qualitatively.To push thi... Particulates generated from electrode erosion in gas spark gap is inevitable and may initiate selfbreakdown behavior with high risk.Traditionally,this problem is addressed by empirical method qualitatively.To push this old problem forward,this paper conducts laser confocal microscopy measurement of eroded surface and a statistical method is introduced to obtain visualization of particulates distribution from electrode erosion after different shots.This method allows dense particulates to be classified with their heights in z direction and scattered figures of particulates within certain height range are obtained.Results indicate that the higher-than-10 μm particulates start to emerge after 200 discharge shots and particulates number has a waved radial distribution with a 0.5 mm wide deposition zone.Based on these quantitative results,the risk of reignition and field-distortion failure that are triggered by particulates can be assessed. 展开更多
关键词 electrode erosion spark gap particulates distribution self-breakdown
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Empirical Analysis of Wealth Distribution Disparity of Chinese Residents and Its Changes
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作者 Shi Li Zhong Wei Sai Ding 《China & World Economy》 SCIE 2005年第6期40-51,共12页
This article describes and analyses the disparity in wealth distribution of Chinese residents, on the basis of results of sample surveys from 1995 to 2002. It finds an obvious worsening trend, mainly due to the rapid ... This article describes and analyses the disparity in wealth distribution of Chinese residents, on the basis of results of sample surveys from 1995 to 2002. It finds an obvious worsening trend, mainly due to the rapid widening of the urban-rural gap. The process of privatisation of urban housing has led to a narrowing of the wealth gap between urban residents, and has also led to a widening of the wealth gap between urban and rural residents, as well as the national wealth gap. As incomes from land decline, the relative weight of land value in rural residents' overall wealth possession has been decreasing and the role of land in narrowing the nation's urban-rural gap has been weakened. In addition, this article also holds that the financial assets of residents wiU play a greater role in enlarging the overall wealth distribution disparity. 展开更多
关键词 wealth distribution urban-rural gap decomposition empirical analysis
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