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Strong in-plane optical anisotropy in 2D van der Waals antiferromagnet VOCl

Nano Research 2023年第5期16卷 7481-7488页

作者： Tianle Zhang Jiantao Du Wenjun Wang keming wu Shuai Yue Xinfeng Liu Wanfu Shen Chunguang Hu Minghui wu Zhe Qu Shengxue Yang Chengbao Jiang School of Materials Science and Engineering Beihang UniversityBeijing 100191China Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field Laboratory Chinese Academy of SciencesHefei 230031China Science Island Branch of Graduate School University of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Precision Measuring Technology and Instruments Tianjin UniversityTianjin 300072China College of Materials and Chemical Engineering MinJiang UniversityFuzhou 350108China Fujian Key laboratory of Functional marine Sensing materials Minjiang UniversityFuzhou 350108China

Two-dimensional(2D)van der Waals(vdW)magnetic materials with strong in-plane anisotropy can make possible novel applications such as optospintronics and strain *** this work,the strong in-plane optical anisotropy in 2D vdW antiferromagnet VOCl has been systematically *** optical brightness and absorption coefficient exhibit evident periodic variation with the change of incident polarization,unveiling the strong in-plane anisotropic optical *** Raman intensity in this material shows obvious dependence on the polarization angle of incident laser,demonstrating that the phonon properties possess strong in-plane ***,we have also realized in-situ visualization of in-plane optical reflection anisotropy in this ***,the strong second harmonic generation(SHG)signal can only be detected when the incident polarization is along specific in-plane crystal orientations,illustrating the presence of strong in-plane nonlinear optical *** findings will benefit the applications of VOCl in the field of polarization-dependent electronics and spintronics.

关键词： two-dimensional material vanadium oxide chloride in-plane optical anisotropy linear dichroism nonlinear optics

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Heath Assessment Method of EMU Trains in Level 3-5 Maintenance and Repair

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Chinese Railways 2022年第2期 50-59页

作者： SONG Wenbin FU Shuangbo wu keming Rolling Stock Dept.of China Railway Shanghai Group Co. Ltd. Science and Technology and Information Dept.of China Railway Shanghai Group Co. Ltd. EMU Depot.of China Railway Shanghai Group Co. Ltd.

An accurate and objective assessment of the health status of EMU trains is of great *** order to make sure the trains are functional,reliable,and endurable in their full life cycle(FLC),health assessment method for EMU trains after Level 3-5 maintenance and repair is ***,the element-selection principles and the assessment rules are defined;second,to present the complex topological relationship between the elements in assessment,a functional logical structure construction method is proposed;third,a health value calculation model is defined based on the element’s characteristics and their logical *** health variables of each element is calculated and fitted following the steps in the corresponding weight calculation *** assessment method is proved to be applicable and effective.

关键词： EMU Level 3-5 maintenance and repair health assessment PHM full life cycle

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The internal efficiency in higher education:An analysis based on economies of scope

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Frontiers of Education in China 2008年第1期3卷 79-96页

作者： CHENG Gang wu keming Capital Research Institute of Basic Education Beijing Normal UniversityBeijing 100875China School of Administration Central China Normal UniversityWuhan 430079China

Among the studies of the internal efficiency in higher education,most have focused on the scale of university(the economies of scale),but little on internal operating efficiency in higher education,especially on the combined efficiency of outputs(the economies of scope).There are few theoretical discussions or experimental research on whether teaching resources are complementary with research resources,or whether resources in undergraduate cultivation are shared with those in postgraduate *** the background of the resource scarcity,it is significant to study the economies of scope in higher education to realize intensive development of higher *** on the multiproduct cost function and the data of universities attached to the Ministry of Education,this paper attempts to deal with the complementarities of resources used in undergraduate cultivation,postgraduate training and research to find that universities produce these outputs without sufficient resource sharing,the diseconomies of scope in postgraduate training is *** far as the quality of teaching and research are concerned,diseconomies of scope of the outputs are *** main reasons are as follows:poor distribution of facilities,teachers and books,overlapping internal management systems,and the current postgraduate cultivation ***,relative departments should take internal resource sharing in higher education into account when making the administration policy of higher education.

关键词： cost function higher education economies of scope

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Dynamics of Exciton Transport in Two-Dimensional Materials

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中国激光 2023年第1期50卷 126-137页

作者： Xia Yuexing Zhang Shuai wu keming Gong Yiyang Yue Shuai Liu Xinfeng CAS Key Laboratory of Standardization and Measurement for Nanotechnology National Center for Nanoscience and TechnologyBeijing 100190China University of Chinese Academyof Sciences Beijing 100049China

In recent years,two-dimensional(2D)materials have attracted extensive interests due to the large exciton binding energy different from bulk *** peculiar properties have been discovered that have farreaching perspectives in the next generation of optoelectronic *** this review,we introduce the forms of exciton existence in 2D materials and several promising 2D materials with good applications at ***,we summarize relevant contemporary tools for probing exciton dynamics and methods of regulating 2D exciton transport,for instance,electrical regulation,stress/surface wave regulation and moirépotential regulation,***,we conclude the general development of regulation in 2D materials and propose several possible opportunities of application prospect.

关键词： materials exciton diffusion transition metal dichalcogenide van deer Waals heterostructure trion moiréexciton

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Reduced dose of Bacillus Calmette-Guérin versus full dose of Bacillus Calmette-Guérin for non-muscle-invasive bladder cancer after transurethral resection bladder tumor： a meta-analysis of randomized controlled trials

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Chinese Medical Journal 2014年第22期127卷 3970-3974页

作者： Qin Xin wu keming Xie Libo Zhao Sixiu Lu Yiping Department of Urology West China Hospital Sichuan UniversityChengdu Sichuan 610041 China

Background Bladder cancer is widely known as the most common malignant tumor in the urinary tract,with 75％-85％ of patients suffering from nonmuscle invasive bladder cancer （NMIBC）.However,the optimal dose of Bacillus Calmette-Guérin （BCG） remains *** aim of this study was to compare the therapeutic efficacy of full dose （FD） with the reduced dose （RD） of *** Randomized controlled trials （RCTs） were selected through the Cochrane Library,PubMed and Embase and were supplemented by hand searching of *** end points include overall survival rate,recurrence rate,progression rate and side *** Five RCTs that included a total of 1 473 patients （727 in the reduced dose group vs 746 in the full dose group）,with a median follow-up period from 33.5 month to 7.1 *** in 80 of 687 （11.6％） patients assigned to the RD group progress to the muscular layer or distant metastasis,compared with 81 of 698 （11.6％） patients assigned to the FD group （RR=1.02; 95％ CI,0.77-1.36; P=0.89）.The incidence of recurrence at three year was reported in all five studies to be 41.1％（299 of 727） and 36.1％（269 of 746） in the RD and FD groups,respectively （RR=1.13; 95％ CI,1.00-1.29; P=0.05）.The 5-year survival rate was 75.9％（502 of 662） in the RD group,and 75.8％（510 of 673） in the FD *** the RD group 41 of 655 （6.3％） patients and 56 of 663 （8.7％） patients in the FD group did not complete the treatment due to systemic or local side effects （RR=0.75; 95％ CI,0.51-1.10; P=0.14） Conclusions In general,the results of our study demonstrate a trend towards a reduction of the toxicity in reduced dose group without affecting the efficacy of treatment when compared with full *** trials with large sample size are still necessary to explore the prognosis of the patients with high risk of tumor in different dose group.

关键词： Bacillus Calmette-Guérin instillation therapy

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新型高导电阴极钢棒结构对电解槽电-热场影响仿真

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轻金属 2015年第5期 31-37页

作者：吴克明中电投宁夏青铜峡能源铝业集团有限公司宁夏银川751041

本文采用有限元仿真计算的方法计算采用新型高导电阴极钢棒铝电解槽的电热场。在ANSYS平台上建立了350k A铝电解槽的双阳极切片模型,从物理场的角度考察新型高导电阴极钢棒结构对于电解槽电平衡和热平衡的影响。结果表明:运用高导电钢... 详细信息

本文采用有限元仿真计算的方法计算采用新型高导电阴极钢棒铝电解槽的电热场。在ANSYS平台上建立了350k A铝电解槽的双阳极切片模型,从物理场的角度考察新型高导电阴极钢棒结构对于电解槽电平衡和热平衡的影响。结果表明:运用高导电钢棒的电解槽阴极压降可以降低约124m V左右;单纯采用高导电钢棒而不对槽底保温进行加强时,底部保温略显不足,在现行的工艺下,槽帮稍厚,伸腿偏长;采用高导电钢棒并对电解槽底部进行保温加强、提高覆盖料厚度等措施,可以使得该槽在降低阴极压降后仍保持在合适的热平衡之下。

关键词：铝电解高导电钢棒阴极压降热平衡

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毛泽东国家安全思想的历史贡献

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湖湘论坛 2021年第5期34卷 72-81页

作者：吴克明湘潭大学期刊社/湘潭大学毛泽东思想研究中心湖南湘潭411105

毛泽东是新中国的主要缔造者,也是新中国建国初期国家安全的坚定捍卫者,有着丰富的国家安全思想。这主要体现在有效维护了国家的主权安全、确保了国家的领土安全、增强了国家的国防实力、推进了国家的民族团结和提高了我国的国际地位等... 详细信息

毛泽东是新中国的主要缔造者,也是新中国建国初期国家安全的坚定捍卫者,有着丰富的国家安全思想。这主要体现在有效维护了国家的主权安全、确保了国家的领土安全、增强了国家的国防实力、推进了国家的民族团结和提高了我国的国际地位等方面。这些思想,对引领和维护我国国家安全做出了不可磨灭的历史贡献。重温毛泽东国家安全思想,对有效应对各种风险挑战,维护国家安全,为实现第二个百年奋斗目标营造良好的国内外安全环境,具有重大意义。

关键词：毛泽东国家安全思想历史贡献

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安徽积极参与泛长三角区域发展分工的若干思考

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江淮论坛 2009年第1期 16-21页

作者：吴克明安徽省人民政府发展研究中心主任

胡锦涛总书记明确提出泛长三角概念，这是总揽全局、审时度势作出的科学判断，揭示了经济发展的客观规律，反映了区域发展的内在要求，具有很强的针对性、理论性和实践性。

关键词：区域发展长三角分工安徽胡锦涛总书记总揽全局科学判断审时度势

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教育的收入效应新探——劳动力工作流动的视角

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教育与经济 2008年第4期24卷 40-44,10页

作者：吴克明成刚华中师范大学管理学院湖北武汉430079 北京师范大学首都基础教育研究院北京100875

劳动力工作流动可分为辞职和被解雇两种方式。一方面,受教育程度越高的工作流动者辞职的可能性越大,而受教育程度越低的工作流动者被解雇的可能性越大,另一方面,辞职者的收入增长速度高于被解雇者,所以工作流动扩大了不同受教育程度的... 详细信息

劳动力工作流动可分为辞职和被解雇两种方式。一方面,受教育程度越高的工作流动者辞职的可能性越大,而受教育程度越低的工作流动者被解雇的可能性越大,另一方面,辞职者的收入增长速度高于被解雇者,所以工作流动扩大了不同受教育程度的工作流动者之间的收入差距,这意味着工作流动增强了教育的收入效应,换言之,工作流动提高了教育收益率。本文的政策含义是,进一步深化劳动就业制度改革,尤其是在政府机关和事业单位真正实行劳动聘用制。

关键词：教育收入效应工作流动辞职被解雇教育收益率

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Design of the High Line Density Gold Transmission Phase Grating for Soft X-Rays Diagnostics

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材料科学与工程（中英文A版） 2013年第5期3卷 363-367页

作者： Juntao Liu Xiao Yuan Shang wu keming Jiang Xiang Zhang Kuaisheng Zou Guiju Zhang Institute of Modern Optical Technologies Soochow University Suzhou 215006 Jiangsu China

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