简介：Weinvestigatetheproblemofteleportationofunitaryoperationsbyunidirectionalcontrol-statetelepor-rationandproposeaschemecalledunidirectionalquantumremotecontrol.Theschemeisbasedontheisomorphismbetweenoperationandstate.Itallowsustostoreaunitaryoperationinacontrolstate,therebyteleportatSonoftheunitaryoperationcanbeimplementedbyunidirectionalteleportationofthecontrol-state.WefindthattheprobabilityofsuccessforimplementinganarbitraryunitaryoperationonarbitraryA~-qubitstatebyunidirectionalcontrol-stateteleportationis4^-M,and2Mebitsand4Mcbitsareconsumedineachteleportation.

简介：Nonlinearcontrollabilityandattitudestabilizationarestudiedfortheunderactuatednonholonomicdynamicsofarigidspacecraftwithonevariable-speedcontrolmomentgyro(VSCMG),whichsuppliesonlytwointernaltorques.Nonlinearcontrollabilitytheoryisusedtoshowthatthedynamicsarelocallycontrollablefromtheequilibriumpointandthuscanbeasymptoticallystabilizedtotheequilibriumpointviatime-invariantpiecewisecontinuousfeedbacklawsortime-periodiccontinuousfeedbacklaws.Specifically,whenthetotalangularmomentumofthespacecraft-VSCMGsystemiszero,anyorientationcanbeacontrollableequilibriumattitude.Inthiscase,theattitudestabilizationproblemisaddressedbydesigningakinematicstabilizinglaw,whichisimplementedthroughanonlinearproportionalandderivativecontroller,usingthegeneralizeddynamicinverse(GDI)method.Thesteady-stateinstabilityinherentintheGDIcontrolleriselegantlyavoidedbyappropriatelychoosingcontrolgains.Inordertoobtainthecommandgimbalrateandwheelaccelerationfromcontroltorques,asimplesteeringlogicisconstructedtoaccommodatetherequirementsofattitudestabilizationandsingularityavoidanceoftheVSCMG.Illustrativenumericalexamplesverifytheefcacyoftheproposedcontrolstrategy.

简介：Itisafactthatthefeedbackdelayactuallyarieseindigitalcontrolsystems.Itisnecessarytomodifythestructureofdigitalcontrolsystemsanddevelopnewcontrolalgorithms,whichisdoneinthispaper.Agreatnumberofdigitalcomputersimulationexperimentshaveshowntheobviousadvantageofthenewalgorithms.

简介：Inthepaperwediscusssomepropertiesofthestateoperatorsoftheoptimalobstaclecontrolproblemforellipticvariationalinequality.Existence,uniquenessandregularityoftheoptimalcontrol,problemareestablished.Inaddition,theapproximationoftheoptimalobstacleproblemisalsostudied.

简介：TheBEPCwillincreaseitsluminositytentimeswithupgradeofboththemachineanddetector,whichistheprojectBEPCII,Theprojectwillbestartedatbeginningchineanddetector,whichistheprojectBEPCII.Theprojectwillbestartedatbeginningof2002andfinishedwithin3-4years.InordertoreachthegoaloftheBEPCII,anumberofnewequipmentwillbeaddedinthesystem,suchasthesuperconductingRFcavities,newmagnetpowersuppliesandbeamfeedbacksystem,andtheBEPCcontrolsystemhastobeupgraded.TheBEPCcontrolsystemwasbuiltin1987andwasupgradedin1994.ItisanOpenVMSandCAMACbased-system,someequipmentiscontrolledbyPCs.WearegoingtoupgradetheexistingsystembyEPICS.SeveralVMEIOCswillbeaddedinthesystemwithfeildbus,PLCsforthenewequipmentcontrol.Andwewillkeeptheexistingsysteminuse,suchasCAMAChardware,PCbasedsub-controlandapplicationprograms,whichwillbemergedintotheEPICSsystem.RecentlythedevelopmentoftheEPICSprototypehasbeenstarted.Regardsomeslowcontrol,commercialSCADAproductcanbechosenasthedevelopmenttool.WehavejustfinishedaprototypewiththeSCADAproductWizcon.Thispaperwilldescribethesystemdesignanddevelopmentissues.

简介：Recentprogressintheelectricalcontrolofmagnetisminoxides,withprofoundphysicsandenormouspotentialapplications,isreviewedandillustrated.Inthefirstpart,weprovideacomprehensivesummaryoftheelectricalcontrolofmagnetismintheclassicmultiferroicheterostructuresandclarifythevariousmechanismslyingbehindthem.Thesecondpartfocusesonthenoveltechniqueofelectricdoublelayergatingfordrivingasignificantelectronicphasetransitioninmagneticoxidesbyasmallvoltage.Inthethirdpart,electricfieldappliedonordinarydielectricoxideisusedtocontrolthemagneticphenomenonoriginatingfromchargetransferandorbitalreconstructionattheinterfacebetweendissimilarcorrelatedoxides.Attheend,weanalyzethechallengesinelectricalcontrolofmagnetisminoxides,boththemechanismsandpracticalapplications,whichwillinspiremorein-depthresearchandadvancethedevelopmentinthisfield.

简介：Weconsideramathematicalmodelwhichdescribesacontactbetweenadeformablebodyandafoundation.ThecontactisbilateralandmodelledwithTresca’sfrictionlaw.Thegoalofthispaperistostudyanoptimalcontrolproblemwhichconsistsofleadingthestresstensorascloseaspossibletoagiventarget,byactingwithacontrolontheboundaryofthebody.Westateanoptimalcontrolproblemwhichadmitsatleastonesolution.Wealsointroducetheregularizedcontrolproblemforwhichwestudytheconvergencewhentheregularizationparametertendstozero.Finally,anoptimallyconditionisestablishedforthisproblem.

简介：TheControlRoomLogbook(CRL)isdesignedtoimproveandreplacethepaperlogbookstraditionallyusedintheHEPacceleratorcontrolroom.Itsfeaturesbenefittheon-linecoordinator,theshiftoperators,andtheremoteobservers,Thispaperexplainssomeofthemostattractivefeaturesforeachoftheseroles.Thefeaturesincludetheabilitytoconfigurethelogbookforthespecificneedsofacollaboration,alargevarietyofentrytypesoperatorcanaddbysimplyclickinganddragging,andaflexiblewebinterfacefortheremoteobservertokeepupwithcontrolroomactivities.TheentriesaresavedasUTF-8basedXMLfiles,whichallowedustogivethedatastructureandmeaningsuchthatitcaneasilybeparsedinthepresentandfarintothefuture.TheXMLtagdataisalsoindexedinarelationaldatabase,makingqueriesondates,keyworks,entrytypeandothercriteriafeasibleandfast.TheCRLisusedintheD0controlroom.Thispresentationalsodiscussesourexperiencewithdeployment,platformindependenceandotherinterestingissuesthatarosewiththeinstallationanduseoflogbook.

简介：ＳｏｆｔｗａｒｅＲｅｂｕｉｌｄｉｎｇｆｏｒＳＦＣＣｏｎｔｒｏｌＳｙｓｔｅｍ￥ＨｕａｎｇＸｉｎｍｉｎ；ＧｕｏＫｅｊｕｎ；ＣｈｅｎＭｉｎｇｌａｎｇ；ＺｈａｎｇＣｈａｎｇｓｈｕａｎａｎｄＨｕＪｉａｎｊｕｎＳＦＣ，ｔｈｅｉｎｊｅｃｔｏｒｏｆＨＩｄａＬ，ｗａｓ...

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简介：Forthepurposeofsolvingoptimalcontrolproblemofawall-crawlingmobilerobotworkingonsphericalcontainers,weproposetheHamel'sformalismforPontryaginMaximumPrinciple,whichgivesageneralframeworkfortheoptimalcontrolofamechanicalsystemwithvelocityconstraints,especiallynonholonomicconstraints.Theeffectivenessoftheproposedframeworkisshownbythesimulationsfortheaboveproblem.

简介：正常冲击波，在一个机翼上终止一个本地超声的区域，限制它的表演并且成为来源高加速冲动的噪音。使用被动控制瓦解被建议冲击波。这个方法获得的流动结构的细节数字地被学习。一个新边界条件被开发了，它的应用程序的结果在嘴流动对实验被验证。崩溃被证实了并且详细说明流动细节的分析的冲击波的方法被介绍。由渐渐的压缩的一个冲击波的替换完全改变高速度的来源它的减小的冲动的噪音和熊潜力。关键词接近音速的流动-冲击波边界层相互作用-被动控制CLC数字O357.4+2

简介：Thispaperdescribesthedynamicbehaviorofextendedtimedeventgraphsrelatedtoplacedelayinthedioidframework.ByCoferandGarg'ssupervisorycontroltheory,weaddresscontrolproblemsofextendedtimedeventgraphs.Supervisorycontrolofextendedtimedeventgraphs(aclassofdiscreteeventdynamicsystems)isstudiedinthedioidframework,anecessaryandsufficientconditionfortheidealsofthesetoffiringtimesequencesoftransitionstobecontrollableispresented.Weproveallthestronglycontrollablesubsetscanformacompletelattice,

简介：在最近的年里，microchannel热exchangers在技术区域的一个大变化被使用了。这些问题之一，它在microchannel技术存在是流动不稳定性，包括在为在特别的二阶段的流动的盒子的microchannels数组的液体maldistribution微蒸发器。解决这个问题的方法之一是在microchannel入口的流动率控制。然而，由于到microchannels的数组的很小的入口经典流动限制设备(与动人的机械部分)将困难适用。为流动率控制的新设备在论文基于dielectrophoresis力量被介绍。为致冷的流动控制使用这台设备的试验性的研究结果在论文被介绍。在应用电压和频率和流动率之间的试验性地获得的关系被介绍为为refrigerants和另外的不稳定的液体使用如此的方法显示出机会。

简介：Manymoderncontrolapplicationsareinterdisciplinaryinnature.Varietyofdisciplinesareorientedonapplicationofcontroltheoryandmodelingofmechanical/biomechanicalsystemstosolvepracticalproblemsintheirspecificfields.Bearingthisinmind,thereareincludedinthisspecialsubjectsomeinterestingcontributionscoveringdifferentareassuchasbifurcationsandchaosindynamicalsystems,stabilityofdynamicalsystems,originalnumericalmethodsofvibrationanalysis,non-smoothsystems,engineeringsystemsanddifferentialequations,controlindynamicalsystems,asymptoticmethodsinnonlineardynamics,vibrationsoflumpedandcontinuoussystems,dynamicsinlifesciencesandbioengineering.

简介：IMPCSRRFGroupcooperatingwithBINPhasfulfilledthefollowingprojects.PCIbasedRFsignalgenerator;PLDcenteredRFstationinterlockandsurveillanceunit;Highfrequencyanalogsignalprocessingunits;CVIandWindowsplatformbasedmonitorandoperationinterface.

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简介：Inthispaper,wediscusstheCDFRunⅡRunControlandonlineeventmonitoringsystem.RunControlisthetoplevelapplicationthatcontrolsthedataacquisitionactivitiesacross150frontendVMEcratesandrelatedserviceprocesses,RunControlisareal-timemulti-threadedapplicationimplementedinJavawithflexiblestatemachines,usingJDBCdatabaseconnectionstoconfigureclients,andincludingauserfriendlyandpowerfulgraphicaluserinterface.TheCDFonlineeventmonitoringsystemconsistsofseveralparts;theeentmonitoringprograms,thedisplaytobrowsetheirresults,theserverprogramwhichcommunicateswiththedisplayviasocketconnections,theerrorreceiverwhichdisplayserrormessagesandcommunicateswithrunControl,andthestatemanagerwhichmonitorsthestateofthemonitorprograms.

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简介：Thestateequationsofstochasticcontrolproblems,whicharecontrolledstochasticdifferentialequations,areproposedtobediscretizedbytheweakmidpointruleandpredictor-correctormethodsfortheMarkovchainapproximationapproach.Localconsistencyofthemethodsareproved.NumericaltestsonasimplifiedMerton'sportfoliomodelshowbettersimulationtofeedbackcontrolrulesbythesetwomethods,ascomparedwiththeweakEuler-MaruyamadiscretisationusedbyKrawczyk.ThissuggestsanewapproachofimprovingaccuracyofapproximatingMarkovchainsforstochasticcontrolproblems.