简介:Amachine,orothertypeof“system”,canoftenbedividedintoseveralsubsystems(components)andthesesubsystemsagaincanbedividedintosevreralsubsystems(secondgeneration).Thisprocessformsasystemtree.Toassessthereliabilityofthemachinebasedondatafromthetrialsofcomponentsofthemachine,virtualsystemmethodisemployed.ItisprovedinthepaperthatthelowerconfidentlimitofthereliabilityofthemachinesetbythevirtualsystemmethodislevelconsistentandasymptoticallyoptimalwhiletheonesetbyLindstrom-Maddensmethodisnot.
简介:<正>BasedonsymboliccomputationsystemMapleandLyapunovstabilitytheory,anactivecontrolmethodisusedtoprojectivelysynchronizetwodifferentchaoticsystems—Lorenz-Chen-Lüsystem(LCL)andRsslersystem,whichbelongtodifferentdynamicsystems.Inthispaper,weachievegeneralizedprojectivesynchronizationbetweenthetwodifferentchaoticsystemsbydirectingthescalingfactorontothedesiredvaluearbitrarily.Toillustrateourresult,numericalsimulationsareusedtoperformtheprocessofthesynchronizationandsuccessfullyputtheorbitsofdrivesystem(LCL)andorbitsoftheresponsesystem(Rsslersystem)inthesameplotforunderstandingintuitively.
简介:Theflowinjectionanalysiswasfirstlyusedforstudyingasolid-liquidadsorptionsystem,andthedynamicsprocessintheadsorptionofdyestuffwithregenerablechitinwastracedbyanonlinemethodofflowinjection-spectrophotometry.Experimentalresultsindicatethatthereisalinearizationbetweenthetestedsignalsandtheheightofpeakswithreciprocitycoefficient0.9999byusingtheflowinjection-spectrophotometrysystemtostudythedynamicsadsorptionprocessinsolid-liquidsystem.Themethodshowsagoodstabilityandreproducibility.Itprovidesanewmethodforthestudiesonadsorptiondynamicsinsolid-liquidsystem.
简介:AtFermilab'sCDFfarmamodularandhighlyscalablesoftwareandcontrolsystemforprocessing,reprocessing,MonteCarlogenerationandmanyothertaskshasbeencreated.ThesystemiscalledFPS(FarmProcessingSystem).Thissystemconsistsofindependentsoftwarecomponentsandallowsmodificationstosuitothertypesofprocessingaswell.FPSisaccompaniedwithfullyfeaturedmonitoringandcontrolinterfaces,includingwebstatisticsdisplaysandamultiplatformJavacontrolinterfacethatalloweasymanagementandcontrol.Thesystemalsofeaturesautomaticerrorrecoveryprocedureswithearlywarningsthatallowsmoothrunning.Ageneraloverviewofthesoftwaredesingalongwithadescriptionofthefeaturesandlimitationsofthesystemanditscomponentswillbepresented.Run2experiencewiththesystemwillbegiveraswell.
简介:SystemofProvidingTEGas¥LiXuekuan;HeYusheng;ZhuLianfang;ChenXuebing;SuYouwuandJiaoDunpangThesystemofprovidingTEgasforcylinderf...
简介:BasedonallthefeaturesoftheKLOEonlinesoftware,theonlinecalibrationsystemperformscurrentcalibrationqualitycheckinginrealtimeandstartsautomaticallynewcalibrationprocedureswhenneeded.Acalibrationmanagerprocesscontrolsthesystem,implementingtheinterfacetotheonlinesystem,receivinginformationfromtheruncontrolandtranslatingitsstatetransitionstoaseparatestatemachine.Itactsasa"calibrationruncontroller"andperformsfailurerecoverywhenrequestedbyasetofprocesscheckers.Thecoreofthesystemisamulti-threadedOOhistogramserverthatreceiveshistogrammingcommandsbyremoteprocessesandoperatesonlocalROOThistograms.AclientlibraryandC,fortranandC++applicationinterfacelibrariesallowtheusertoconnectanddefinehisownhistogramorreadhistogramsownedbyothersusinganbool-likeinterface.Severalcalibrationprocessesrunninginparallelinadestributed,multiplatformenvironmentcanfillthesamehistograms,allowingfastexternalinformationcheck.Amonitorthreadallowremotebrowsingforvisualinspection,Pre-filtereddataarereadinnonprivilegedspymodefromthedataacquisitionsystemviatheKloeIntegratedDataflow,privilegedspymodefromthedataacquisitonsystemviatheKoleIntegratedDataflow.Themaincharacteristicsofthesystemarepresented.
简介:Recentresultsonthedevelopmentofanavigationsystemforasmartwheelchairarepresentedinthispaper.Inordertoreducethedevelopmentcost,amodularsolutionisdesignedbyusingcommercialandlowcostdevices.Thefunctionalitiesofthetrackingcontrolsystemaredescribed.Experimentalresultsoftheproposedassistivesystemarealsopresentedanddiscussed.
简介:BES1Monitoring&DisplayingSystem(BESMDS)isprojectedtomonitoranddisplaytherunningstatusofDAQandSlowControlsystemsofBESthroughtheWebforworldwideaccessing.Itprovidesareal-timeremotemeansofmonitoringaswellasanapproachtostudytheenvironmentalinfluenceuponphysicaldatataking.Thesystemcollectsreal-timedataseparatelyfromBESonlinesubsystemsbynetworksocketsandstoresthedataintoadatabase.Peoplecanaccessthesystemthroughitswebsite.whichretrievesdataonrequestfromthedatabaseandcandisplayresultsindynamicallycreatedimages.Itswebaddressinhttp://besmds,ihep.ac.cn/
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:WhenthePoissonmatrixofPoissonsystemisnon-constant,classicalsymplecticmethods,suchassymplecticRunge-Kuttamethod,generatingfunctionmethod,cannotpreservethePoissonstructure.Thenon-constantPoissonstructurewastransformedintothesymplecticstructurebythenonlineartransform.ArbitraryordersymplecticmethodwasappliedtothetransformedPoissonsystem.TheEulerequationofthefreerigidbodyproblemwastransformedintothesymplecticstructureandcomputedbythemid-pointscheme.Numericalresultsshowtheeffectivenessofthenonlineartransform.
简介:BeamDiagnosticSystemforSFC¥SongHaihongThediagnosticdevicesfortheinjectorSFCinclude3movableradialprobeswith10differentialandin...
简介:InthispaperwehighlightstrategiesandchoicesthatmaketheDφDataHandlingsystemmarkedlydifferentfrommanyotherexperiments'systems,WeemphasizehowfartheDφsystemhascomeininnovatingandimplementingaDφ-specificDataGridsystem.Wediscussexperiencesduringthefirstmonthsofdetectorcommissioningandgivesomefutureplansforthesystem.