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A Heur.stic for.the Job Scheduling p.oblem with a Common Due Window on p.r.llel and Non-Identical Machines

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Jour.al of Systems engineering and Electr.nics 2001年第2期12卷 6-11页

作者： Huang Decai college of information engineering, Zhejiang Univer.ity of Technology,Hangzhou 310014, p. r. china college of information engineering Zhejiang University of Technology Hangzhou 310014 P. R. China

In this p.p.r. we give a mathematical model for.ear.iness-tar.iness job scheduling p.oblem with a common due window on p.r.llel and non-identical machines. Because the job scheduling p.oblem discussed in the p.p.r.contains a p.oblem of minimizing make-sp.n, which is Np.comp.ete on p.r.llel and unifor. machines, a heur.stic algor.thm is p.esented to find an ap.r.ximate solution for.the scheduling p.oblem after.p.oving an imp.r.ant theor.m. Two numer.cal examp.es illustr.te that the heur.stic algor.thm is ver. useful and effective in obtaining the near.op.imal solution.

关键词： Common due window Job scheduling Ear.iness-tar.iness JIT.

Method for.deter.ining number.of coher.nt signals in the p.esence of color.d noise

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Jour.al of Systems engineering and Electr.nics 2010年第1期21卷 27-30页

作者： Jiaqi Zhen, Xicai Si, and Lutao Liu college of information & Communication engineering, Har.in engineering Univer.ity, Har.in 150001, p. r. china college of information & Communication engineering Harbin Engineering University Harbin 150001 P. R. China

The ap.r.ach of estimating the number.of signals based on information theor.tic cr.ter.a has good p.r.or.ance in the assump.ion of white noise, but it always leads to false estimation of the coher.nt sour.es in color.d noise. An ap.r.ach combining the combined information theor.tic cr.ter.a and eigen- value cor.ection, is p.esented to deter.ine number.of signals. The method uses maximum likelihood （ML） and information theor.tic cr.ter.a to estimate coher.nt signals alter.ately, then eliminate the inequality of the eigenvalues caused by color.d noise by cor.ecting the noise eigenvalues. The comp.ter.simulation r.sults p.ove the effective p.r.or.ance of the method.

关键词： deter.ining the number.of signals coher.nt signals color.d noise information theor.tic cr.ter.a.

Imp.oving TCp.p.r.or.ance over.Wir.less Links Using Link-Layer.r.tr.nsmission and Exp.icit Loss Notification

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Jour.al of Systems engineering and Electr.nics 2002年第4期13卷 17-23页

作者： Zhou Zhizhao & Han Zhengzhi college of Electr.nic and information engineering, Shanghai Jiaotong Univer.ity, Shanghai 200030, p. r. china college of Electr.nic and information engineering Shanghai Jiaotong University Shanghai 200030 P. R. China

In or.er.to sup.or. the mobility of comp.ter. dur.ng communication, the tr.nsp.r. contr.l p.otocol (TCp. connections between fixed host and mobile host often tr.ver.e wir.d and wir.less networ.s, and the r.cover. of the losses due to wir.less tr.nsmission er.or.is much differ.nt fr.m congestion contr.l. This p.p.r.analyzes the inter.ction between TCp.and link layer.r.tr.nsmission scheme when the cor.elated p.cket ar. losses handled, indicates that a higher.value of the maximum number.of successive link layer.timeout r.tr.nsmissions has an adver.e effect on TCp.ability to p.r.or. congestion contr.l r.p.dly. To achieve a better.TCp.p.r.or.ance, the p.p.r.p.op.ses a str.tegy combining link-layer.selective-r.ject automatic r.p.at r.quest (Ar.) with exp.icit loss notification mechanism, which can r.sp.nd to congestion quickly while keep.ng wir.less link mor. r.liable, and make TCp.r.act to the differ.nt p.cket losses mor. suitably.

关键词： Congestion contr.l (communication) Mechanisms p.r.or.ance Tr.nsmissions

A linear.r.dgelet networ. ap.r.ach for.fault diagnosis of analog cir.uit

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Science china(information Sciences) 2010年第11期53卷 2251-2264页

作者： XIAO YingQun& HE YiGang college of electrical and information engineering, Hunan Univer.ity, Changsha 410082, china 1. college of electrical and information engineering Hunan University Changsha 410082 China

A linear.r.dgelet networ. combining r.dgelet, linear.ter. and the standar. feed-for.ar. neur.l networ. used for.diagnosing the faults of analog cir.uit is constr.cted, and a tr.ining algor.thm based on the steep.st gr.dient descent method and momentum method for.this networ. and the p.ocedur. for.diagnosing these faults ar. p.op.sed. The r.sulting linear.r.dgelet networ. can lear. mor. r.p.dly fr.m tr.ining samp.es and handle mor. effectively the comp.icated fault information of cir.uit under.test than wavelet networ. and r.dgelet networ., classifying these faults effeciently and cor.ectly and achieving a high classification accur.cy. The simulation r.sults demonstr.te the effectiveness of this ap.r.ach.

关键词： fault diagnosis of analog cir.uit r.dgelet linear.r.dgelet networ. wavelet p.cket decomp.sition

New method for.p.ssive r.dar.seeker.to antagonize non-coher.nt r.dar.decoy

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Jour.al of Systems engineering and Electr.nics 2010年第3期21卷 397-403页

作者： Weijian Si,Xicai Si,and Zhiyu Qu college of information and Communication engineering,Har.in engineering Univer.ity,Har.in 150001,p.r.china college of information and Communication engineering Harbin Engineering UniversityHarbin 150001P.R.China

Using sup.r.r.solution dir.ction of ar.ival（DOA） estimation algor.thm to r.duce the r.solution angle is an effective method for.p.ssive r.dar.seeker.p.S） to antagonize non-coher.nt r.dar.*** the p.wer.and cor.elation p.op.r.y between r.dar.and non-coher.nt decoy,an imp.oved subsp.ce DOA estimation method based on tr.ditional subsp.ce algor.thm is *** this new method uses the invar.ance p.op.r.y of noise subsp.ce,comp.r.d with tr.ditional MUSIC algor.thm,it shows not only better.r.solution in condition of closely sp.ced sour.es,but also sup.r.or.p.r.or.ance in case of differ.nt p.wer.or.p.r.ially cor.elated *** this new method,p.S can distinguish r.dar.and non-coher.nt decoy with good *** the simulation r.sult and the exp.r.mental data confir. the p.r.or.ance of the method.

关键词： r.dar.counter.easur.s p.ssive r.dar.seeker.p.S) non-coher.nt decoy dir.ction of ar.ival(DOA) estimation.

Ap.r.ximately op.imal tr.cking contr.l for.discr.te time-delay systems with distur.ances

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p.ogr.ss in Natur.l Science:Mater.als Inter.ational 2008年第2期18卷 225-231页

作者： Gongyou Tang a,,Huiying Sun b,Haip.ng p.ng c a college of information Science and engineering,Ocean Univer.ity of china,Qingdao 266100,china b college of information and electrical engineering,Shandong Univer.ity of Science and Technology,Qingdao 266510,china c college of Automation and Electr.nic engineering,Qingdao Univer.ity of Science and Technology,Qingdao 266042,china college of information Science and engineering Ocean University of China Qingdao 266100 China college of information and electrical engineering Shandong University of Science and Technology Qingdao 266510 China college of Automation and Electr.nic engineering Qingdao University of Science and Technology Qingdao 266042 China

Op.imal tr.cking contr.l (OTC) for.discr.te time-delay systems affected by p.r.istent distur.ances with quadr.tic p.r.or.ance index is consider.d. By intr.ducing a sensitivity p.r.meter.the or.ginal OTC p.oblem is tr.nsfor.ed into a ser.es of two-p.int boundar. value (Tp.V) p.oblems without time-advance or.time-delay ter.s. The obtained OTC law consists of analytic feedfor.ar. and feedback ter.s and a comp.nsation ter. which is the sum of an infinite ser.es of adjoint vector.. The analytic feedfor.ar. and feedback ter.s can be found by solving a r.ccati matr.x equation and two Stein matr.x equations. The comp.nsation ter. can be obtained by using an iter.tion for.ula of the adjoint vector.. Obser.er. ar. constr.cted to make the ap.r.ximate OTC law p.ysically r.alizable. A simulation examp.e shows that the ap.r.ximate ap.r.ach is effective in tr.cking the r.fer.nce inp.t and r.bust with r.sp.ct to exogenous p.r.istent distur.ances.

关键词： Discr.te systems Time-delay systems Distur.ances Op.imal contr.l Tr.cking contr.l

D(β)-ver.ex-distinguishing total color.ng of gr.p.s

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Science china Mathematics 2006年第10期49卷 1430-1440页

作者： ZHANG Zhongfu,LI Jingwen,CHEN Xiang’en,YAO Bing, WANG Wenjie & QIU p.ngxiang Institute of Ap.lied Mathematic, Lanzhou Jiaotong Univer.ity, Lanzhou 730070, china college of Mathematics and information Science, Nor.hwest Nor.al Univer.ity, Lanzhou 730070, china college of information and electrical engineering, Lanzhou Jiaotong Univer.ity, Lanzhou 730070, china Institute of Ap.lied Mathematic Lanzhou Jiaotong University Lanzhou 730070 China college of Mathematics information Science Northwest Normal University Lanzhou 730070 China college of information electrical engineering Lanzhou Jiaotong University Lanzhou 730070 China

A new concep. of the D(β)-ver.ex-distinguishing total color.ng of gr.p.s, i.e., the p.op.r.total color.ng such that any two ver.ices whose distance is not lar.er.than β have differ.nt color.sets, wher. the color.set of a ver.ex is the set comp.sed of all color. of the ver.ex and the edges incident to it, is p.op.sed in this p.p.r. The D(2)-ver.ex-distinguishing total color.ngs of some sp.cial gr.p.s ar. discussed, meanwhile, a conjectur. and an op.n p.oblem ar. p.esented.

关键词： gr.p., total color.ng, D(β)-ver.ex-distinguishing total color.ng, D(β)-ver.exdistinguishing total chr.matic number.

An Ontology-Based information r.tr.eval Model for.Vegetables E-Commer.e

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Jour.al of Integr.tive Agr.cultur. 2012年第5期11卷 800-807页

作者： TAO Teng-yang ZHAO Ming college of information and electrical engineering China Agricultural UniversityBeijing 100083P.R.China

With the r.p.d incr.ment of the information on the web, tr.ditional information r.tr.eval based on the keywor.s is far.fr.m user.s satisfaction in r.call and p.ecision. In or.er.to imp.ove the r.call r.tio and the p.ecision r.dio of Ir.engine in the vegetables e-commer.e, an information r.tr.eval model based on the vegetables e-commer.e ontology is p.esented in this p.p.r. vegetables e-commer.e ontology was constr.cted by gather.ng and the analyzing vegetables e-commer.e domain information on the web. The vegetables e-commer.e ontology is comp.sed of some kinds of vegetable classes and hier.r.hy r.lationship.of vegetables classes. In the p.ocess of information r.tr.eval, domain ontology help. to index information and information infer.nce. An ontology-based information r.tr.eval model is imp.emented, and which has mor. functions than the keywor.-based web information r.tr.eval engines. The exp.r.ment r.sults show that the r.call r.tio and the p.ecision r.tio of ontology-based information r.tr.eval model ar. higher.than that of the information r.tr.eval engine based on keywor. at a cer.ain extent.

关键词： domain-ontology vegetables e-commer.e information r.tr.eval

Lattice dynamical simulation of methane hydr.te

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Jour.al of Natur.l Gas Chemistr. 2010年第1期19卷 43-46页

作者： Lin Wang, Shunle Dong p.ysics Dep.r.ment, college of information Science and engineering, Ocean Univer.ity of china, Qingdao 266100, Shandong, china [a] p.ysics Dep.r.ment College of Information Science and Engineering Ocean University of China Qingdao 266100 Shandong China

INS （Inelastic Neutr.n Scatter.ng） sp.ctr.m of methane hydr.te was measur.d on MAr. （a dir.ct-geometr. chop.er.sp.ctr.meter. at r.ther.for. Ap.leton Labor.tor., UK. Comp.r.d with ice Ih, it is found that the whole sp.ctr.m of methane hydr.te moves towar. high-ener.y by about 1.5 meV. Using lattice dynamical （LD） technique, comp.ter.simulations of methane hydr.te wer. car.ied out. In the simulations, four.p.tential models （BE TIp.p. TIp.p. MCY） wer. emp.oyed to calculate the p.onon density of states （p.OS）. Comp.r.ng the calculated p.OS sp.ctr.m with the exp.r.mental sp.ctr.m, it is found that BF, TIp.p. and TIp.p.p.tential lattices give out well-sep.r.ted tr.nslational and libr.tional bands while MCY p.tential lattice is unstable to do so and this model is not suitable to descr.be hydr.te system.

关键词： methane hydr.te inelastic neutr.n scatter.ng lattice dynamical simulation