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:UpgradeofGoosyDataAcquisitionSystem¥WangShujin;WangYanyu;XingJianping;GuoTianruiandJiaoDunpangAdataacquisitionsystemnamedGoos...
简介:OnthebasisoftheactualDSPsystemdevelopment,illustratedisthedesignoftheconnectionbetweenDSPandFlash,compiledaretheintegrityproceduresofFlasherasureandprogramming.Besides,designedistheconnectionbetweenfull-duplexEthernetcontrollerRTL8019ASwiththeexternalmemoryinterfaceofDSP.Furthermore,thestepsofflashonlineprogrammingthroughEthernetaredescribedindetail.Theremoteupgradeandupholdarerealizedbythedesign.
简介:CHINA-EuropeinteractionisgatheringpacearoundthetenthanniversaryofthecomprehensivestrategicpartnershipbetweenChinaandtheEU.DutchPrimeMinisterMarkRuttevisitedChinainNovember2013.Aweeklater,ChinesePresidentXiJinpingandPremierLiKeqiangmetwithPresidentoftheEuropeanCouncilHermanVanRompuyandEuropeanCommissionPresidentJoseManuelBarrosoatthe16thmeetingofChineseandEuropeanUnionleaders.Shortlyafter,LiKeqiang
简介:Theobject-orientedtagdatabaseoftheZEUSexperimentatHERAisbasedonObjectivity/DB.Itisusedtorapidlyselecteventsforphysicsanalysisbasedonintuitivephysicalcriteria.Thetotalnumberofeventscurrentlyinthedatabaseexceeds150millionBasedonthedetectorconfigurationdifferentinformationcanbestoredforeachevent.Anewversionofthedatabasesoftwarewasrecentlyreleasedwhichservesclientsonamultitudeofbatchmachines,workgroupserversanddesktopmachinesrunningIrix,LinuxandSolaris.ThisreplacesanearlierversionwhichwasrestrictedtothreeSGImachinesMultiplecopiesofthedatacanbestoredtransparentlytotheusersforexampleifanewofflinereconstructionofthedataisinprogress.Areportisgivenontheupgradeofthedatabaseanditssuperiorperformancecomparedtotheoldeventselectionmethod.
简介:Intheanalysisofhowenvironmentalregulationaffectsthecomparativeadvantageoftrade,existingliteratureignoresindustry’sinherentheterogeneity,whichdrawsremarkablydifferentconclusions.Inviewofthis,thepaperanalyzedthemechanismofenvironmentalregulationontheexportqualityofdifferentindustriesfromtheperspectiveoffactorinputstructureheterogeneity.BasedonthepaneldataofChina’smanufacturingindustry,thepaperusedthesystemgeneralizedmethodofmomentsmethodtoexaminetheheterogeneityinfluenceofenvironmentalregulationonmanufacturingexportquality.Thestudyfoundthat,first,environmentalregulationaffectedtheexportqualityupgradeofthemanufacturingsectorthroughoffseteffectandcompensationeffect,andthedirectionoftheimpactwouldmainlydependontheindustry’sfactorinputstructure.Second,forindustrieswithlargerfixed-assetinvestment(FAI)ratiointhefactorinputstructure,thecurrentenvironmentalregulationpolicywasnotconducivetotheexportqualityupgradingoftheindustries.However,therewasasignificantU-shapeddynamicrelationshipbetweenthem.Asenvironmentalregulationsbecamestricter,whenregulatorystringencywentbeyondtheinflectionpoint,thepolicywouldpromotetheupgradingofexportquality.ButforindustrieswithsmallerproportionofFAI,environmentalregulationexertedafavorableimpactontheexportqualityupgrade,followingaJ-shapedmarginalgrowthcurve.Third,forindustrieswithdifferentfactorinputstructure,theirexportqualityhadbeeneffectivelyupgradedasexpectedbyfactorslikehumancapitalinvestment,independentR&D,technologyintroduction,andforeigndirectinvestment;butraisingpercapitacapitalstockandexpandingenterprisesizedidnotproducesignificantdirectimpactonexportqualityupgrade.Theseconclusionsremainedrobustafterusingdifferentmeasurementmethodsandreplacingwithothervariables.Therefore,thispapersuggeststhatgovernmentsshouldt