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湖南省人民政府办公厅转发省商务厅《关于进一步促进加工贸易健康发展意见》的通知
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《湖南政报》 2006年第20期23-25,共3页
各市州、县市区人民政府,省政府各厅委、各直属机构: 省商务厅《关于进一步促进加工贸易健康发展的意见》已经省人民政府同意,现转发给你们,请认真遵照执行。
关键词 加工贸易 发展意见 湖南省人民政府 出口加工区 进口料件 银行保证金台账 直属机构 商品目录 自有技
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Web-Based Synthetic Optimization Design System of Micro-Components
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作者 GONG Xiao-yan JIANG Ping-yu 《Journal of China University of Mining and Technology》 EI 2005年第4期293-298,共6页
In order to meet the requirement of network synthesis optimization design for a micro component, a three-level information frame and functional module based on web was proposed. Firstly, the finite element method (FE... In order to meet the requirement of network synthesis optimization design for a micro component, a three-level information frame and functional module based on web was proposed. Firstly, the finite element method (FEM) was used to analyze the dynamic property of coupled-energy-domain of virtual prototype instances and to obtain some optimal information data. Secondly, the rough set theory (RST) and the genetic algorithm (GA) were used to work out the reduction of attributes and the acquisition of principle of optimality and to confirm key variable and restriction condition in the synthesis optimization design. Finally, the regression analysis (RA) and GA were used to establish the synthesis optimization design model and carry on the optimization design. A corresponding prototype system was also developed and the synthesis optimization design of a thermal actuated micro-pump was carded out as a demonstration in this paper. 展开更多
关键词 micro-component synthetic optimization design finite element method rough set theory genetic algorithm regression analysis
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A novel purification technique for noble gas isotope analyses of authigenic minerals 被引量:2
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作者 HE LiYan QIU HuaNing +3 位作者 SHI HeSheng ZHU JunZhang BAI XiuJuan YUN JianBing 《Science China Earth Sciences》 SCIE EI CAS CSCD 2016年第1期111-117,共7页
Noble and active gases are released from geological samples during gas extraction for noble gas isotope analyses. The active gases should be removed before inletting to mass spectrometers for the analyses. The normal ... Noble and active gases are released from geological samples during gas extraction for noble gas isotope analyses. The active gases should be removed before inletting to mass spectrometers for the analyses. The normal noble gas preparation systems can clean up most geological samples. However, authigenic minerals from sedimentary rocks in oil/gas fields contain organic matter, which cannot be cleaned up by the normal preparation systems and thus influence the noble gas analyses. We introduce a novel gas purification system (PRC patent No. ZL201320117751.2), which includes several reversible purification pumps with different absorbing and degassing temperatures. It can well clean up water steam, carbon dioxide and organic gas- es. Mica minerals are often used for 40Ar/39Ar dating. A muscovite sample (2082MS) which could not be cleaned up by the normal preparation system with two SAES NP10 getters, becomes the test sample for a comparative experiment in this study. The experiment is assigned into 4 sections with the organic gas removal system (OGRS) "Closed/Opened" in turn. When the OGRS is closed only with two NP10 getters for purification, the 40At intensities increase in curves with inlet time because of impurities, the 40Ar/39Ar dating results yield age errors about +2%-±1% (20-). When the OGRS is opened for purification, in contrast, the 40Ar intensities decrease linearly with inlet time. This indicates that the gases have been cleaned up effectively, and the 40Ar/39Ar results yield ages with errors in ±0.4%. The OGRS is very helpful to obtain high-quality analysis data. 展开更多
关键词 40Ar/39Ar dating Gas purification technique Organic impurity Noble gas
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