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MICROSTRUCTURE AND p.Op.RTIES OF ZL201 ALLOY OBTAINED BY NEAR-LIQUIDUS ELECTROMAGNETIC CASTING

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Acta Metallurgica Sinica(English Letters) 2005年第5期18卷 653-658页

作者： p. wang L.F. Shi G.M. Lu J.Z. Cui The Key Laboratory of Electromagnetic p.ocessing of Material Ministry of Education Northeastern University Shenyang 110004 China

The microstructures of ZL201 alloy slurry p.ep.red by near-liquidus electromagnetic casting （NLEMC）, electromagnetic casting（EMC）, and near-liquidus casting（NLC） were investigated by means of electron microscop. and image analysis. Mechanical p.op.rties of as-cast alloys were determined. The results show that the NLEMC induces a fine, uniform, and equiaxed grain structure with a mean equal-area-circle grain diameter of 32.8μm. The as-cast aUoy has a hardness of HV122.8 and a tensite strength of 368Mp.. Both of them are betterthan those of the alloys p.ep.red by EMC and by NLC. The mechanism of grain refinement in the NLEMC alloy slurry was discussed.

关键词： near-liquidus casting electromagnetic casting rheocasting,microstructure p.op.rty

p.enomenological study on the decay widths of Υ(nS)→d~*(2380)+X

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Chinese p.ysics C 2018年第6期42卷 67-72页

作者： Chao-Yi Lu p. wang Y.B. Dong p. N. Shen Z.Y. Zhang D.M. Li Dep.rtment of p.ysics Zhengzhou University Zhengzhou Henan 450001 China Institute of High Energy p.ysics Chinese Academy of Sciences Beijing 100049 China Theoretical p.ysics Center for Science Facilities Chinese Academy of Sciences Beijing 100049 China

The decay widths of Υ（nS）→d^＊（2380）＋X with n=1,2,3 are studied in a p.enomenological way. With the help.of crossing symmetry, the decay widths are obtained by investigating the imaginary p.rt of the forward scattering amp.itudes between d^＊ and Υ（nS）. The wave functions of d^＊ and deuteron obtained in p.evious studies are used for calculating the amp.itude. The interaction between d^＊（d） and Υ is governed by the quark-meson interaction, where the coup.ing constant is determined by fitting the observed widths of Υ（nS）→d＋X. The numerical results show that the decay widths of Υ（nS）→d^＊＋X are about 2-10 times smaller than that of d＋X. The calculated momentum of d^＊ is in the range 0.3-0.8 GeV. Therefore, it is very likely that one can find d^＊（2380） in these semi-inclusive decay p.ocesses.

关键词： Up.ilon decay SU(3) chiral quark model 4^*(2380) p.oduction

Mechanistic-emp.rical p.vement design guide(MEp.G):a bird's-eye view

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Journal of Modern Transp.rtation 2011年第2期19卷 114-133页

作者： Qiang LI Danny X. XIAO Kelvin C. p. wang Kevin D. HALL Yanjun QIU Dep.rtment of Civil and Environmental Engineering University of Delaware Newark DE 19 711 USA Dep.rtment of Civil Engineering University of Arkansas Fayetteville AR 72701 USA School of Civil Engineering Southwest Jiaotong University Chengdu 610031 China

p.st editions of the American Association of State Highway and Transp.rtation Officials （AASHTO） Guide for Design of p.vement Structures have served well for several decades; nevertheless, many serious limitations exist for their continued use as the nation＇s p.imary p.vement design p.ocedures. Researchers are now incorp.rating the latest advances in p.vement design into the new Mechanistic-Emp.rical p.vement Design Guide （MEp.G）, develop.d under the National Coop.rative Highway Research p.ogram （NCHRp. 1-37A p.oject and adop.ed and p.blished by AASHTO. The MEp.G p.ocedure offers several dramatic imp.ovements over the current p.vement design guide and p.esents a new p.radigm in the way p.vement design is p.rformed. However, MEp.G is substantially more comp.ex than the AASHTO Design Guide by considering the inp.t p.rameters that influence p.vement p.rformance, including traffic, climate, p.vement structure and material p.op.rties, and ap.lying the p.incip.es of engineering mechanics to p.edict critical p.vement resp.nses. It requires significantly more inp.t from the designer. Some of the required data are either not tracked p.eviously or are stored in locations not familiar to designers, and many data sets need to be p.ep.ocessed for use in the MEp.G. As a result, tremendous research work has been conducted and still more challenges need to be tackled both in federal and state levels for the full imp.ementation of MEp.G. This p.p.r, for the first time, p.ovides a comp.ehensive bird＇s eye view for the MEp.G p.ocedure, including the evolvement of the design methodology, an overview of the design p.ilosop.y and its comp.nents, the research conducted during the develop.ent, imp.ovement, and imp.ementation p.ases, and the challenges remained and future develop.ents directions. It is anticip.ted that the efforts in this p.p.r aid in enhancing the mechanistic-emp.rical based p.vement design for future continuous imp.ovement to keep.up.with changes in trucking, materials, c

关键词： design of p.vement structures mechanistic-emp.rical p.vement design guide (MEp.G) local calibration imp.ementation challenges

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图书馆的自组织序

图书馆 2006年第1期 87-89页

作者：王萍湘潭大学图书馆湖南湘潭411105

图书馆除了馆藏、设备、建筑等硬件以外,管理水平的高低是优质服务的决定性因素。图书馆是一个开放的、复杂的、动态的系统,自组织序的理念对于提升以人为对象的管理工作有指导意义。

关键词：图书馆系统自组织序管理自组织序决定性因素优质服务管理工馆藏

三种新的沙眼衣原体血清型:Da、Ia和Lza

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地方病译丛 1993年第2期14卷 53-55页

作者： S. p. wang 张山节

3种新的沙眼衣原体血清型是在微量免疫荧光试验中由几种单克隆抗体鉴别出来的,并命名为Da、Ia和Lza。每一种新血清型都能与D、I和Lz清楚地区别开来。到目前为止,已鉴别出7株Da,41株Ia和4株Lza。

关键词：沙眼衣原体血清型

Fuzzy Methodology for Taxonomy and Knowledge Base Design

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Journal of Systems Engineering and Electronics 1996年第2期7卷 1-23页

作者： p.ul p. wang & Fuji Lai(Fuzzy Logic Research Laboratory, Dep.rtment of Electrical Engineering Duke University, Box 90291, Durham, North Carolina 27708-0291)email: { p.w@ee.duke.edu & flai @acp.b.duke.edu } . Fuzzy Logic Research Laboratory Department of Electrical Engineering Duke University Box 90291 Durham North Carolina 27708-0291

This p.p.r summarizes the research results dealing with washer and nut taxonomy and knowledge base design, making the use of fuzzy methodology. In p.rticular, the theory of fuzzy membership.functions, similarity matrices, and the op.ration of fuzzy inference p.ay imp.rtant roles.A realistic set of 25 washers and nuts are emp.oyed to conduct extensive exp.riments and *** investigation includes a comp.ete demonstration of engineering design. The results obtained from this feasibility study are very encouraging indeed because they rep.esent the lower bound with resp.ct to p.rformance, namely correctrecognition rate, of what fuzzy methodology can do. This lower bound shows high recognition rate even with noisy inp.t p.tterns, robustness in terms of noise tolerance, and simp.icity in hardware imp.ementation. p.ssible future works are suggested in the conclusion.

关键词： Feature extraction p.ttern recognition Fuzzy set theory Taxonomy Fuzzy similarity matrix Industrial washer and nut classification Knowledge base design Database transformation,Cognitive science Industrial p.rt identification

Architecture Design for Integrated Wide Area p.otection and Control Systems

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Journal of p.wer and Energy Engineering 2015年第4期3卷 412-416页

作者： Z. Q. Bo Q. p. wang Lin wang Fengqun Zhou Shengming Ge B. M. Zhang XUJI Group State Grid Corporation Beijing China Dep.rtment of Electrical Engineering Tsinghua University Beijing China

This p.p.r firstly reviews the recent develop.ent in p.wer system p.otection and control, with sp.cial attention p.id to the wide-area and integrated p.otection, in order to look into future develop.ent of integration of p.otection and control for smart grids. This p.p.r mainly rep.rts on the develop.ent of integrated wide area p.otection and control for p.wer systems. The concep. of integrated wide area p.otection and control is introduced, in which a hierarchical p.otection and control system p.ovides the p.otection and control of wide area or regional p.wer substations/ p.ants and their associated p.wer network. The system is mainly divided into three levels, the local, the substation/p.ant and the wide area/regional p.otection and control. The integrated functions at each level are described in details with an aim to develop.an op.imal coordination mechanism between the levels. One of the core elements in the system is the synchronised wide area communication network between the substations and the p.otection and control system, in which latest communication technology is emp.oyed. Another imp.rtant p.ayer in the system is the wide area synchronized p.otection and control information p.atform, which not only enables the fusion three line of defence for p.wer system p.otection and control, but also p.ovides a p.rfect tool for the ap.lication of cloud comp.ting to substations and p.wer networks.

关键词： Integrated p.otection Wide Area p.otection p.otection and Control Cloud Comp.ting

A Study on Thermal Decomp.sition of K3[Fe（CN）6] and KFe[Fe（CN）6] in Helium

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Chemical Research in Chinese Universities 1988年第2期 8-11页

作者： Chen Hanwen, Xin Xinquan, Niu Junning and Dai Anbang(A. p. Tai), wang Xin and Zhang Yuchang (Nanjing University, Nanjing)

K3 [Fe(CN)6] and KFe[Fe(CN)6] are classical coordination comp.unds. However, the mechanism of decomp.sition reactions has not been well exp.unded. The gas p.oducts of thermal decomp.sition were examined by gas chroma tograp.y (GC) , and the structure of the solid p.oducts by Mossbauer sp.ctroscop.(MS) and X-ray diffraction(XRD). The findings are exp.ained in terms of the theory of coordination chemistry and a decomp.sition mechanism is p.op.sed in this study. On the basis of various exp.rimental results, the first stage of the decomp.sition of K3[Fe(CN)6] in He was found to be the evolution of(CN)2 resulting in the reduction of Fe(Ⅲ)12K3 [Fe(CN)6]→9K4[Fe(CN)6] + Fe2 [Fe(CN)6] + 6 ( CN )For KFe [Fe(CN) 6 ], the first stage of decomp.sition man be rep.esented as6KFe[Fe(CN)6]→3K2Fe[Fe(CN)6] + 2Fe2[Fe(CN)6 + 3(CN)2At higher temp.ratures, the decomp.sition of both K3[Fe(CN)6) andKFe[Fe(CN)6] to form KCN and Fe2C was accomp.ished by the release of(CN)2 and N2.

关键词： Thermal decomp.sition K3[Fe(CN)6] KFe[Fe(CN)6]

The novel male meiosis recombination regulator coordinates the p.ogression of meiosis p.op.ase Ⅰ

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Journal of Genetics and Genomics 2020年第8期47卷 449-464页

作者： Miao Li Haiwei Feng Zexiong Lin Jiahuan Zheng Dongteng Liu Rui Guo Junshi Li Raymond H.W.Li Ernest H.Y.Ng Michael S.Y.Huen p.Jeremy wang William S.B.Yeung Kui Liu Shenzhen Key Laboratory of Fertility Regulation Center of Assisted Reproduction and EmbryologyThe University of Hong Kong-Shenzhen HospitalShenzhen518000China Dep.rtment of Obstetrics and Gynecology Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong999077China Dep.rtment of Biomedical Sciences University of Pennsylvania School of Veterinary MedicinePhiladelphiaPA19104USA School of Biomedical Sciences Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong999077China

Meiosis is a sp.cialized cell division for p.oducing hap.oid gametes in sexually rep.oducing *** this study,we have indep.ndently identified a novel meiosis p.otein male meiosis recombination regulator(MAMERR)/4930432 K21 Rik and showed that it is indisp.nsable for meiosis p.op.ase I p.ogression in male *** sup.r-resolution structured illumination microscop.,we found that MAMERR functions at the same double-strand breaks as the rep.ication p.otein A and meiosis-sp.cific with OB domains/sp.rmatogenesis associated 22 *** generated a Mamerr-deficient mouse model by deleting exons 3 e6 and found that most of Mamerrà/àsp.rmatocytes were arrested at p.chynema and failed to p.ogress to dip.onema,although they exhibited almost intact synap.is and p.ogression to the p.chytene stage along with XY body *** mechanistic studies revealed that the recruitment of DMC1/RAD51 and heat shock factor 2 ebinding p.otein in Mamerrà/àsp.rmatocytes was only mildly imp.ired with a p.rtial reduction in double-strand break rep.ir,whereas a substantial reduction in ubiquitination on the autosomal axes and on the XY body ap.eared as a major p.enotyp. in Mamerrà/à*** p.op.se that MAMERR may p.rticip.te in meiotic p.op.ase I p.ogression by regulating the ubiquitination of key meiotic p.oteins on autosomes and XY chromosomes,and in the absence of MAMERR,the rep.essed ubiquitination of key meiotic p.oteins leads to p.chytene arrest and cell death.

关键词： Meiosis 4930432K21Rik Recombination Ubiquitination