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X-ray spectra induced in highly charged 40Ar^q+ interacting with Au surface

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Science china(phys.cs,Mechanics & Astronomy) 2006年第2期49卷 203-212页

作者： ZHANG Xiao’an1,2, XIAO Guoqing1, YANG Zhihu1, CHEN Ximeng3, ZHAO Yongtao1, LI Fuli4, ZHANG Yinping1, CUI Ying3, ZHANG Hongqiang3, XU Xu3, SHAO Jianxiong3 & ZHAN Wenlong11. Institute of Modern phys.cs, Chinese Academy of Sciences, Lanzhou 730000, china 2. Department of phys.cs, xianyang normal university, xianyang 712.00, china 3. Department of Modern phys.cs, Lanzhou university, Lanzhou 730000, china 4. Department of Applied phys.cs, Xi’an Jiaotong university, Xi’an 710049, china 1. Institute of Modern phys.cs Chinese Academy of Sciences Lanzhou 730000 China 2. Department of phys.cs Xianyang Normal University Xianyang 712000 China 3. Department of Modern phys.cs Lanzhou University Lanzhou 730000 China 4. Department of Applied phys.cs Xi’an Jiaotong University Xi’an 710049 China

By use of optical spectrum technology, the spectra of X-ray induced by highly charged 40Arq+ ions interacting with Au surface have been studied. The results show that the argon Kα X-ray were emitted from the hollow atoms formed below the surface. There is a process of multi-electron exciting in neutralization of the Ar16+ion, with electronic con-figuration 1s2 in its ground state below the solid surface. The yield of the projectile Kα X-ray is related to its initial electronic configuration, and the yield of the target X-ray is related to the projectile kinetic energy.

关键词： highly charged ion hollow multi-electron excitation X- ray.

A Bionic Approach for Topology Optimization for Tension-only or Compression-only Design

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Journal of Bionic Engineering 2010年第4期7卷 397-404页

作者： Kun Cai,Jiao ShiCollege of Water Resources and Architectural Engineering,Northwest A&F university,xianyang 712.00,P.R.china [a] College of Water Resources Architectural Engineering Northwest A&F University Xianyang 712100 P. R. China

A new bionic approach is presented to find the optimal topologies of a structure with tension-only or compression-onlymaterial based on bone remodelling *** traditional methods,the computational cost of topology optimization of thestructure is high due to material *** improve the efficiency of optimization,the reference-interval with material-replacement method is *** the method,firstly,the optimization process of a structure is considered as bone remodellingprocess under the same loading conditions.A reference interval of Strain Energy Density (SED),corresponding to thedead zone or lazy zone in bone mechanics,is adopted to control the update of the design ***,a material-replacement scheme is used to simplify the Finite Element Analysis (FEA) of structure in *** the operation ofmaterial-replacement,the original tension-only or compression-only material in design domain is replaced with a new isotropicmaterial and the Effective Strain Energy Density (ESED) of each element can be ***,the update of design variablesis determined by comparing the local ESED and the current reference interval of SED,e.g.,the increment of a relativedensity is nonzero if the local ESED is out of the current reference *** results validate the method.

关键词： nature inspired topology optimization tension/compression-only material reference-interval material-replacement

Micro-plate magnetic chemiluminescence immunoassay and its applications in carcinoembryonic antigen analysis

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Science china Chemistry 2010年第4期53卷 812-819页

作者： LI ZhiYong1, ZHANG QianYun2, ZHAO LiXia1, LI ZhenJia3, HU GuoMao3, LIN Jin-Ming2 & WANG Shan4 1State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, china 2.epartment of Chemistry, Tsinghua university, Beijing 100084, china 3Beijing Chemclin Biotech Co., Ltd., Beijing Academy of Science and Technology, Beijing 100094, china 4School of Chemistry and Chemical Engineering, xianyang normal College, xianyang 712.00, china 1. State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China2. Department of Chemistry Tsinghua University Beijing 100084 China3. Beijing Chemclin Biotech Co. Ltd. Beijing Academy of Science and Technology Beijing 100094 China4. School of Chemistry and Chemical Engineering of Xianyang Normal College Xianyang 712000 China

A micro-plate magnetic chemiluminescence immunoassay was developed for rapid and high throughput detection of carcinoembryonic antigens (CEA) in human sera. This method was based on a sandwich immunoreaction of fluorescein isothiocyanate (FITC)-labeled anti-CEA antibodies, CEA antigens, and horseradish peroxidase (HRP)-conjugated anti-CEA antibodies in mi- cro-plate. The immunomagnetic particles coated with anti-FITC antibodies were used as the solid phase for the immunoassay. The separation procedure was carried out by a magnetic plate adaptor and the luminol-hydrogen peroxide (H2O2)-HRP system was employed for the chemiluminescence detection. The proposed method combined the advantages of the micro-plate reactor and magnetic particle separation technology with the linear range of 5-250 ng mL·1. The detection limit of CEA was 0.61 ng mL·1. The coefficient of the variation was less than 7% and 13% for intra-assay and inter-assay precision, respectively. Compared with the commercial micro-plate chemiluminescent kit, the proposed method showed a good correlation.

关键词： micro-plate magnetic chemiluminescence immunoassay carcinoembryonic antigen tumor marker

Path for Rural Autonomous Production after Reform and Opening-up

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Asian Agricultural Research 2012年第1期4卷 5-8页

作者： ZHANG Jian School of Politics and Management, xianyang normal university, xianyang 712.00, china

This paper firstly introduces research achievements in change of rural society in china after reform and opening-up. Researches are conducted mainly in household contract responsibility system and the relation between township government and village administration. From the perspective of autonomy, it reviews the course of autonomous growth in rural economic field from the economic system reform to implementation of household contract responsibility system. Then, it analyzes expansion of space of rural self-organizations and reconstruction of relation between township government and village administration. Finally, it is concluded that autonomy is a path for development of rural society.

关键词： Autonomy Democratization Path for change

Coupled fluid-thermal investigation on non-ablative thermal protection system with spiked body and opposing jet combined configuration

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Chinese Journal of Aeronautics 2019年第6期32卷 1390-1402页

作者： Jie HUANG Weixing YAO xianyang SHAN State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and AstronauticsNanjing 210016China Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle Nanjing University of Aeronautics and AstronauticsNanjing 210016China System Design Institute Hubei Aerospace Technology AcademyWuhan 430040China

In this paper, a Non-Ablative Thermal Protection System(NATPS) with the spiked body and the opposing jet combined configuration is proposed to reduce the aerodynamic heating of the hypersonic vehicle, and the coupled fluid-thermal numerical analysis is performed to study the thermal control performance of the NATPS. The results show that the spiked body pushes the bow shock away from the protected structure and thus reduces the shock intensity and the wall heat flux. In addition, the low temperature gas of the opposing jet separates the high temperature gas behind the shock from the nose cone of the spiked body, ensuring the non-ablative property of the spiked body. Therefore, the NATPS reduces the aerodynamic heating by the reconfiguration of the flow field, and the thermal control efficiency of the system is better than the Thermal Protection System(TPS) with the single spiked body and the single opposing jet. The influencing factors of the NATPS are analyzed. Both increasing the length of the spiked body and reducing the total temperature of the opposing jet can improve the thermal control performance of the NATPS and the nonablative property of the spiked body. However, increasing the heat conductivity coefficient of the spiked body can enhance benefit the non-ablative property of the spiked body, but has little influence on the thermal control performance of the NATPS.

关键词： Coupled method Non-ablative Opposing jet Spiked body Thermal protection system

On the Cayley-Bacharach property and the construction of vector bundles

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Science china Mathematics 2011年第9期54卷 1891-1898页

作者： SUN Hao 1,2 1 Department of Mathematics and Statistics,Huazhong normal university,Wuhan 430079,china 2 Department of Mathematics,East china normal university,Shanghai 200241,china 1. Department of Mathematics and Statistics Huazhong Normal University Wuhan 430079 China2. Department of Mathematics East China Normal University Shanghai 200241 China

We study the Cayley-Bacharach property on complex projective smooth varieties of dimension n≥2 for zero dimensional subscheme defined by the zero set of the wedge of r-n + 1 global sections of a rank r≥n vector bund... 详细信息

关键词： Cayley-Bacharach property vector bundle reflexive sheaf k-very ample

基于CiteSpace的传统手工艺布老虎研究态势可视化分析

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艺术与设计（理论版） 2024年第2期 126-129页

作者：刘虹闫现阳天津理工大学天津300384

文章运用CiteSpace文献计量工具对2000年1月至2023年3月的知网数据库中104篇“布老虎”专题文献进行图谱可视化分析,从发文量,核心作者及研究机构,热点关键词和突现词方面探析了研究热点和主题方向,梳理了已有研究状况脉络。结果显示200... 详细信息

文章运用CiteSpace文献计量工具对2000年1月至2023年3月的知网数据库中104篇“布老虎”专题文献进行图谱可视化分析,从发文量,核心作者及研究机构,热点关键词和突现词方面探析了研究热点和主题方向,梳理了已有研究状况脉络。结果显示2000年1月至2023年3月的发文量呈增长状态的研究现象,已形成3个研究团体,主要是高等院校及学术机构,今后需进一步加强学者,机构间的交流合作。创新,传承,艺术特征几个关键词为近年来这一领域研究的主题。今后需要扩大研究内容,创新研究方法,建立研究网络,提高传统手工艺布老虎发展水平,深入推动传统手工艺高质量传承。

关键词：知识图谱传统手工艺布老虎研究态势可视化分析

Kinetic energy and charge state effects in the X-ray emission of Mo surface induced by Xe^(q+)(q=25,29) ions

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Science china(phys.cs,Mechanics & Astronomy) 2008年第9期51卷 1240-1244页

作者： CUI Ying1,YANG ShengSheng2,YANG ZhiHu3,XU JinZhang1,ZHANG HongQiang1,XU Xu1,SHAO JianXiong1,LIU ZhaoYuan1,XIAO GuoQing3,ZHANG XiaoAn4,ZHAO YongTao3,ZHANG YanPing3 & CHEN XiMeng1 1 Department of Modern phys.cs,Lanzhou university,Lanzhou 730000,china 2 National Key Laboratory of Vacuum & Cryogenics Technology and phys.cs,Lanzhou 730000,china 3 Institute of Modern phys.cs,Chinese Academy of Sciences,Lanzhou 730000,china 4 normal College of xianyang,xianyang 713000,china Department of Modern phys.cs Lanzhou University Lanzhou 730000 China National Key Laboratory of Vacuum & Cryogenics Technology and phys.cs Lanzhou 730000 China Institute of Modern phys.cs Chinese Academy of Sciences Lanzhou 730000 China normal College of xianyang Xianyang 713000 China

L-shell X-ray spectra of Mo surface induced by Xe25+ and Xe29+ were measured. The X-ray intensity was obtained in the kinetic energy range of the incident ions from 350 to 600 keV. The relationship of X-ray intensity ... 详细信息

关键词： X-ray surface kinetic energy and charge state effect Xeq+

小切口辅助复位配合防旋髓内钉对股骨转子间骨折患者手术出血及疼痛症状的影响

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中国医药科学 2024年第14期14卷 171-174页

作者：陈先洋刘焕彩山东第二医科大学山东潍坊261000 山东第二医科大学附属医院关节外科山东潍坊261000

目的股骨转子间骨折小切口辅助复位配合防旋髓内钉治疗对手术出血量及疼痛症状的影响。方法回顾性分析2021年1月至2022年12月于山东第二医科大学附属医院关节外科治疗的84例股骨转子间骨折患者,依据方案分为对照组和研究组,每组各42例... 详细信息

目的股骨转子间骨折小切口辅助复位配合防旋髓内钉治疗对手术出血量及疼痛症状的影响。方法回顾性分析2021年1月至2022年12月于山东第二医科大学附属医院关节外科治疗的84例股骨转子间骨折患者,依据方案分为对照组和研究组,每组各42例。对照组实施完全闭合复位,研究组实施小切口辅助复位,比较两组术中情况、术后并发症发生情况以及髋关节评分(Harris)、视觉模拟评分法(VAS)评分。结果研究组治疗后切口长度、术中出血量、手术时间均高于对照组,差异有统计学意义(P0.05)。结论在股骨转子间骨折患者的治疗中,与闭合复位措施相比,虽然小切口辅助复位方案术中出血量及手术时间有所增加,但术后并发症较对照组减少,骨折愈合时间短,而且关节功能情况缓解明显。

关键词：股骨转子间骨折小切口辅助复位防旋髓内钉治疗出血量疼痛情况