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Air.Tar.et Fuzzy p.tter. r.cognition Thr.at-Judgment Model

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Jour.al of Systems Engineer.ng and Electr.nics 2003年第1期14卷 41-46页

作者： Tong Youtang & Wang JianmingDalian Univer.ity of Technology, Dalian 110624, p. r. china Dalian Naval Academy, Dalian 116018, p. r. china Dalian Univer.ity of Technology Dalian 110624 P. R. China Dalian Univer.ir. of Technology Dahan 110624 P. R. China Dalian Univer.ir. of Technology Dahan 110624 P. R. China

Thr.at-judgment is a comp.icated fuzzy infer.nce p.oblem. Up.to now no r.levant unified theor. and measur.ing standar. have been develop.d. It is ver. difficult to establish a thr.at-judgment model with high r.liability in the air.efense system for.the naval war.hip.. Air.tar.et thr.at level judgment is an imp.r.ant comp.nent in naval war.hip.com-bat command decision-making systems. Accor.ing to the thr.at level judgment of air.tar.ets dur.ng the air.defense of sin-gle naval war.hip. a fuzzy p.tter. r.cognition model for.judging the thr.at fr.m air.tar.ets is established. Then an algo-r.thm for.identifying the p.r.meter. in the model is p.esented. The model has an adap.ive featur. and can dynamicallyup.ate its p.r.meter. accor.ing to the state change of the attacking tar.ets and the envir.nment. The method p.esentedher. can be used for.the air.defense system thr.at judgment in the naval war.hip..

关键词： Air.tar.ets Thr.at judgment Fuzzy p.tter. r.cognition Fuzzy sets

Skew p.ir.ng, Cocycle Defor.ations and Double Cr.ssp.oducts

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Acta Mathematica Sinica,English Ser.es 1999年第2期15卷 225-234页

作者： Huixiang Chen, Institute of Mathematics, Fudan Univer.ity, Shanghai 200433, p. r. china Dep.r.ment of Mathematics, Yangzhou Univer.ity, Yangzhou 225002, p. r. china Institute of Mathematics Fudan University Shanghai P. R. China Dep.r.ment of Mathematics Yangzhou University Yangzhou P. R. China

In this p.p.r. we give a sufficient condition for.double cr.ssp.oduct X A to be X A for.some skew p.ir.ng T if X A is a 2-cocycle defor.ation of X A. Then we give a sufficient and necessar. condition for.X A to b... 详细信息

关键词： Skew-p.ir.ng 2-cocycle Monoidal categor. Natur.l isomor.0}ism

A　Hybr.d　For.al　Descr.p.ion　Method　Based　on　FSM,CSp.and　ADT　for.Communication　p.otocol

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Jour.al of Systems Engineer.ng and Electr.nics 1998年第3期9卷 29-38页

作者： Li Layman(Wuhan Tr.nsp.r.ation Univer.ityl 430063, p. r. china) Wuhan Tr.nsp.r.ation Univer.ity 430063 P. R. China

Since communication p.otocol deals with comp.ex issues r.lated to distr.bution such as communication, concur.ency and synchr.nization, their.develop.ent needs to be tr.ced by using sop.isticated for.al descr.p.ion methods. This p.p.r.p.esents a new hybr.d for.al method for.communication p.otocol sp.cification. In this method, finite state machine (FSM), communication sequential p.ocess (CSp. and abstr.ct data typ. (ADT) ar. mixed and the best featur.s of these ap.r.aches ar. offer.d. In this p.p.r. the main for.al descr.p.ion techniques (FDT) for.p.otocol engineer.ng ar. br.eny intr.duced and a hybr.d for.al descr.p.ion method based on the FSM, CSp.and ADT for.communication p.otocol is descr.bed. Finally, this p.p.r.p.esents the for.al sp.cification of an examp.e p.otocol for.LAN by using the p.op.sed hybr.d for.al method. The r.sults of studies show that the hybr.d for.al descr.p.ion method for.communication p.otocol is an available and effective ap.r.ach.

关键词： Communication p.otocol For.al descr.p.ion techniques,p.otocol engineer.ng Hybr.d for.al method

An Op.imal r.p.acement p.licy for.a System with Finite Sp.r.s

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Jour.al of Systems Engineer.ng and Electr.nics 1999年第3期10卷 76-81页

作者： Zhao Jianmin(Shijiazhuang Mechanical Engineer.ng College, 050003, p. r. china )Zhao JianhuaShijiazhuang Education College, 050000, p. r. china Shijiazhuang Mechanical Engineer.ng College 050003 P. R. China Shijiazhuang Education College 050000 P. R. China

This p.p.r.develop. a new r.p.acement p.licy for.a system with multip.e sp.r. *** op.imal r.p.acement p.r.od is deter.ined by maximizing the mean time to failur. of the *** show that ther. exists a finite and unique op.imal r.p.acement p.r.od T for.units with str.ctly incr.asing failur. r.tes. We also p.oof that the op.imal r.p.acement p.r.od for.a system with sp.r.s is decr.asing in k. Fur.her.or., an algor.thm is p.esented to get the op.imal r.p.acement p.r.od and a numer.cal examp.e is given to illustr.te the r.sult. with str.ctly

关键词： r.p.acement Op.imization Sp.r.

r.NDOM　CHAr.CTEr.STICS　OF　FLOW　FLUCTUATING　p.ESSUr.　AND　DYNAMIC　r.Sp.NSE　ON　THE　SHAFT　Sp.LLWAY

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Jour.al of Hydr.dynamics 1995年第2期7卷 28-34页

作者： Cui Li(Dalian Univer.ity of Technology, Dalian 116023, p. r. china) Dalian Univ of Technology Dalian China

The flow down a shaft sp.llway, connected with tunnel, r.sults in nonsymmetr.c vor.ex ar.und the axis of the shaft. The gr.ater.the nonsymmetr., the gr.ater.the p.essur. fluctuation and r.ndom vibr.tion of *** p.p.r.deals with an attemp. to deter.ine the fluctuating p.essur. char.cter.stics in the shaft. Stochastic theor. and r.ndom time ser.es ar. emp.oyed to analyse the samp.e function x(t) , its x(t) and x(t), and their.cor.elations:The moments of the sp.ctr. ar. obtained:The fluctuating p.essur. char.cter.stics ar. r.lated to the non-symmetr.c inlet vor.ex. The r.lation between the p.int p.essur. sp.ctr. and fluctuating p.essur.s on the shaft wall ar. indicated and *** p.p.r.gas fur.her.into the simulated test on the fr.med over.flow tower.and p.ts for.ar. an effective p.op.sed way. Besides the calculation in fr.quency domain, comp.tation in time domain is also ueed to analyse the same str.ctur.. The vibr.tion sour.e and the method to r.move it ar. found out.

关键词： shaft sp.llway dynamic r.sp.nse r.ndom char.cter.stics

ANALYSIS OF CAp.TAL FLOW WITH GIS——Two Ap.r.aches for.r.gional Investment in china

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Chinese Geogr.p.ical Science 2003年第1期13卷 2-8页

作者： YAO Yong-ling ( p.blic Administr.tion School, r.nmin Univer.ity of china, Beijing 100872, p. r. china) p.blic Administr.tion School Renmin University of China 北京 100872

GIS technology has been mostly concer.ed with handling p.ysical data and modeling p.ysical envir.nment .However.the r.quir.ments of GIS for.handling socio-ecnomic infor.ation in many cases ar. differ.nt fr.m those concer.ing p.enomena in the p.ysical envir.nment ,Analysis of cap.tal flow among r.gions r.quir.s the tr.nsitions both fr.m economic values to p.ysical landscap. and fr.m p.ysical sur.a ce to econmoic *** gr.wth of Chinese economy comes mainly fr.m *** ar. wto main ways for.obtaining high gr.wth of investment ,One is gover.ment exp.nditur. which usually invests in r.gional facility and amenity block ,which is r.gar.ed as stimulus for.attr.cting *** other.is the cr.ation of investing center.and cor.esp.nding cap.tal sour.e ar.as ,both of which need the centr.l city with the highest gr.wth r.te of investment among *** p.p.r.p.esents the cluster.ar.as of both gover.ment r.venue and total investment ,the p.tential situation of cap.tal flow between centr.l city Shanghai and its neighbor.p.ovinces by using 'Classification' and 'Inter.0}lation' functions of Ar.View GIS.

关键词： GIS 地理信息系统中国投资社会经济学自然环境资金流动

Analysis on Some of Softwar. r.liability Models

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Jour.al of Systems Engineer.ng and Electr.nics 2001年第1期12卷 88-96页

作者： Song Xiaoqiu Softwar. Evaluation and Test Center.of china Aer.sp.ce Cor.1}r.tion, Beijing 100854, p. r. china Softwar. Evaluation and Test Center.of china Aer.sp.ce Cor.1}r.tion Beijing 100854 P. R. China

Softwar. r.liability and maintainability evaluation tool (Sr.ET 3.0) is intr.ducted in detail in this p.p.r. which was develop.d by Softwar. Evaluation and Test Center.of china Aer.sp.ce Mechanical Cor.0}r.tion. Sr.ET 3.0 is sup.or.ed by seven softwar. r.liability models and four.softwar. maintainability models. Numer.cal char.cter.stics for.all those models ar. deep.y studied in this p.p.r. and cor.esp.nding numer.cal algor.thms for.each model ar. also given in the p.p.r.

关键词： Softwar. r.liability Evaluation Model

Study on Biotr.bological Behavior.of the Combined Joint of CoCr.o and UHMWp./BHA Comp.site in a Hip.Joint Simulator

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Jour.al of Bionic Engineer.ng 2009年第4期6卷 378-386页

作者： Qingliang Wang, Jinlong Liu, Shir.ng GeCollege of Mater.als and Engineer.ng, china Univer.ity of Mining and Technology, Xuzhou 221007, p. r. china College of Mater.als and Engineer.ng China University of Mining and Technology Xuzhou P. R. China

UHMWp. comp.sites r.infor.ed with Bovine Bone Hydr.xyap.tite(BHA)in differ.nt contents wer. p.ep.r.d by heat p.essing for.ation method.A hip.joint wear.simulator.was used to investigate the biotr.bological behavior.of UHMWp./BHA comp.site acetabular.cup. against CoCr.o alloy femor.l heads in bovine synovia lubr.cation at 37±1 ℃.It was found that the addition of BHA p.wder.to UHMWp. can imp.ove the har.ness and cr.ep.modulus of UHMWp./BHA comp.sites,and decr.ase their.wear.r.tes under.bovine synovia *** the content of BHA filler.p.r.icles was up.to 30 wt%, UHMWp./BHA comp.sites demonstr.ted the well design p.r.or.ances of the sur.ace and biotr.bological ***, p.oughing and slight adhesive wear.wer. the main wear.mechanisms for.UHMWp. and its *** addition,the sizes of wear.p.r.icles became lar.er.with an incr.ase in BHA p.wder.*** r.sults suggest that BHA filler.is a desir.ble comp.nent to incr.ase the wear.r.sistance of UHMWp./BHA comp.sites for.biomedical ap.lications.

关键词： UHMWp. hydr.xyap.tite biotr.bology joint p.osthesis

Der.vation of Mar.in-Hou Equation of State fr.m Har.-p.r.icle p.r.ur.ation Theor.

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Chemical r.sear.h in Chinese Univer.ities 2000年第1期16卷 49-56页

作者： ZHANG Bing-jian (Dep.r.ment of Chemistr., Zhejiang Univer.ity, Hangzhou 310027, p. r. china) HOU Yu-chun (Dep.r.ment of Chemical Engineer.ng, Zhejiang Univer.ity, Hangzhou 310027, p. r. china) 浙江大学浙江杭州 310027

In this p.p.r. the Mar.in-Hou equation of state is der.ved by using a p.wer.ser.es r.p.esentation of r.dial distr.bution function and an analytic r.p.esentation of multi-section p.tential based on the Bar.er.Hender.on har.-p.r.icle p.r.ur.ation theor. including high-or.er.ter.s. In the der.vation, a theor.tical for. of Mar.in-Hou equation was obtained. It had a similar.for. and the same cap.bility to p.edict p.V-T p.op.r.ies as the Mar.in-Hou equation and no additional data wer. r.quir.d for.evaluating the constants. The char.cter.stic constants of the theor.tical exp.ession have cer.ain r.lationship. with the molecular.p.r.meter..

关键词： p.r.ur.ation theor. Mar.in-Hou equation of state Theor.tical exp.ession p.V-T p.op.r.ies Molecular.p.r.meter