简介：InthisarticlewewillintroducethesystemstructureofamodelbuiltforBESdatamanagementandstorageaswellasthebasicmethodsonhowtoestablishthesystem.Additionallytheanalysisofthedatastructure,thedataprocess,theselectionofexperimentalprogram,theimagemanipulationandthekeytechniqueswillbediscussedindetail,Themodelimplementsthesetupofthesystemenvironmentandallthosefunctionsfromdataloading,databasecresting,dataaccessing,remotedataprocesstodatafiguring.

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简介：HL-2Aisadivertortokamakwithnoncircularplasmacross-section,itcanoperateinsingle-nullordouble-nullplasmadischarges.Thetoroidalandpoloidalcoils,vacuumvesselandsupportingstructureofHL-2AcomefromtheformerASDEX,Germany.

简介：ＩｍｐｒｏｖｅｍｅｎｔｏｆＣｕｒｒｅｎｔＭｅａｓｕｒｅｍｅｎｔｏｎＣｏｎｔｒｏｌＳｙｓｔｅｍｆｏｒＢｅａｍ－ｌｉｎｅｓｏｆＨＩＲＦＬ￥ＣｈｅｎＹｕｎａｎｄＺｈａｎｇＷｅｉＴｈｅｃｏｎｔｒｏｌｓｙｓｔｅｍｏｆｔｈｅｐｏｗｅｒｓｕｐｐｌｉｅｓｆｏｒｔｈｅ...

简介：Thegoalofthisstudywastodevelopanddesignacompositeprotonexchangemembrane(PEM)andmembraneelectrodeassembly(MEA)thataresuitableforthePEMbasedwaterelectrolysissystem.Inparticular,itfocusesonthedevelopmentofsulphonatedpolyetheretherketone(SPEEK)basedmembranesandcaesiumsaltofsilico-tungsticacid(CsSiWA)matrixcomparedwithoneofthetransitionmetaloxidessuchastitaniumdioxide(TiO_2),silicondioxide(SiO_2)andzirconiumdioxide(ZrO_2).TheresultantmembraneshavebeencharacterizedbyFouriertransforminfraredspectroscopy,scanningelectronmicroscopy,ionexchangecapacity(IEC),wateruptakeandatomicforcemicroscopy.ComparativestudiesontheperformanceofMEAswerealsoconductedutilizingimpregnation-reductionandconventionalbrushcoatingmethods.ThePEMelectrolysisperformanceofSPEEK-CsSiWA-ZrO_2compositemembranewasmoresuperiorthanthatofothermembranesinvolvedinthisstudy.Electrochemicalcharacterizationshowsthatamaximumcurrentdensityof1.4A/cm~2wasachievedat60°C,explainedbyanincreasedconcentrationofprotonicsitesavailableattheinterface.

简介：Thedolly+isaLinuxapplicationprogramtoclonefilesanddiskpartitionimagefromaPCtomanyothers.Byusingseveraltechniquessuchaslogicalringconnection,multithreadingandpipelining,itcouldachievehighperformanceandscalability.Forexample,intypicalcondition,installationstoahundredPCstakesalmostequivalenttimefortwoPCs.TogetherwiththeIntelPXEandtheRedHatkickstart,automaticandveryfastsysteminstallationandupgradingcouldbeperformed.

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简介：WesummarisetheHEPVis'01workshopheldinMay2001atNortheasternUniversity,Boston.Generalissuessuchasarchitectureanddesignoftheframeworksandtoolkitsaredescribedaswellasthestatusofawiderangeofgenericanalysisandvisualisationtoolsandexperiment-specificsystems.

简介：Inthispaper,akindofWeakCurrentTester(WeCT)isdescribed.Itisdesignedtotesttheweakcurrentwhichrangesfrom0.1nAto100μA.Themodulehasdividedthemeasurementrangeintosixsectionsincludingof1nA,10nA,100nA,1μA,10μAand100μA.Thetestercanreceivenotonlypositivepolaritycurrentbutalsonegativepolaritycurrent.Asfarastheprincipleisconcerned,wefirstlyconverttheweakcurrenttoasmall

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简介：ＴｅｎｓｏｒＰｒｏｂａｂｉｌｉｔｙＣｕｒｒｅｎｔａｎｄＣｏｎｔｉｎｕｉｔｙ￥ＷｅｉＺｈｉｙｏｎｇａｎｄＺｈｕＹｏｎｇｔａｉＩｔｉｓｋｎｏｗｎｔｈａｔｉｎｑｕａｎｔｕｍｍｅｃｈａｎｉｃｓｗａｖｅｆｕｎｃｔｉｏｎｓｃｏｎｔａｉｎａｌｌｔｈｅｉｎｆ...

简介：Thediscreteiterativemapmodelofpeakcurrent-modecontrolledbuckconverterwithconstantcurrentload(CCL),containingtheoutputvoltagefeedbackandrampcompensation,isestablishedinthispaper.BasedonthismodelthecomplexdynamicsofthisconverterisinvestigatedbyanalyzingbifurcationdiagramsandtheLyapunovexponentspectrum.Theeffectsoframpcompensationandoutputvoltagefeedbackonthestabilityoftheconverterareinvestigated.Experimentalresultsverifythesimulationandtheoreticalanalysis.Thestabilityboundaryandchaosboundaryareobtainedunderthetheoreticalconditionsofperiod-doublingbifurcationandbordercollision.Itisfoundthattherearefouroperationregionsinthepeakcurrent-modecontrolledbuckconverterwithCCLduetoperiod-doublingbifurcationandborder-collisionbifurcation.Researchresultsindicatethatrampcompensationcanextendthestableoperationrangeandtransfertheoperatingmode,andoutputvoltagefeedbackcaneventuallyeliminatethecoexistingfast-slowscaleinstability.

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简介：Withabout20permanentstaffandseveralgraduatestudents,IonSourceGroupisdoingpioneeringworkinhighperformanceECRandLaserionsourcedevelopment,ionsourceplasmastudy,ionsourceapplicationandroutineoperationfornationallaboratory.In2016,withthegreatcontributionsoftheteammembers,manyverypromisingresultsandachievementshavebeenmade.FortheroutineoperationofHIRFLfacility,threeionsources,i.e.

简介：TheNearbySupernovaFactoryProjectwillprovideauniqueopportunitytobringtogethersimulationandobservationtoaddresscrucialproblmsinparticleandnuclearphysics.ItsdgoalistosignificantlyenhanceourunderstandingofthenuclearprocessesinsupernovaeandtoimproveourabilitytousebothTypeIaandTypeIIsupernovaeasreferencelightsources(standardcandles)inprecisionmeasurementsofcosmologicalparameters.Overthepastseveralyears,astronomersandastrophysicistshavebeenconductingin-depthskysearcheswiththegoalofidentifyingsupernovaeintheirearliestevolutionarystagesand,duringthe4to8weeksoftheirmost"explosive~activity,measuretheirchangingmagnitudeandspectra.ThesearchprogramcurrentlyunderdevelopmentatLBNLisanearth-basedobservationprogramutilizingobservationalinstrumentsatHaleakalaandMaunaKea,HawaiiandMt.Palomar,California,Thisnewprogramprovidesademandingtestbedfortheintegrationofcomputational,datamanagementandcollaboratorytechnologies.Aciticalelementofthiseffortistheuseofemergingworkflowmanagementtoolstopermitcollaboratingscientiststomanagedataprocessingandstorageandtointegrateadvancedsupernovasimulationintothereal-timecontroloftheexperiments.Thispaperdescribestheworkflowmanagementframeworkfortheproject,discussessecurityandresourceallocationrequirementsandreviewsemergingtoolstosupportthisimportantaspectofcollaborativework.

简介：Industryexpertsareincreasinglyfocusingonteamproductivityonteamproductivityasthekeytosuccess,thebaseoftheteameffortisthefour-foldstructureofsoftwareintermsoflogicalorganisation,physicalorganisation,managerialorganisation,anddynamicalstructure.WedescribetheideasputintoactionwithintheCMSsoftwarefororganisingsoftwareintosub-systemsandpackages,andtoestablishconfigurationmanagementinamultiprojectenvironment.Weuseastructurethatallowstomaximisetheindependenceofsoftwaredevelopmentinindividualareas,andatthesametimeemphasisestheoverwhelmingimportanceoftheinterdependenciesbetweenthepackagesandcomponentsinthesystem.Wecommentonreleaseprocedures,anddescribetheinter-relationshipbetweenrelease,development,integration,andtesting.

简介：ＡｐｐｌｉｃａｔｉｏｎｏｆＦｏｘｐｒｏｔｏＭａｎａｇｅｍｅｎｔｏｆＡｒｔｉｃｌｅｓ￥ＨｕａｎｇＴｕａｎｈｕａＴｈｅｄａｔａｂａｓｅｍａｎａｇｅｍｅｎｔｓｙｓｔｅｍｏｆＦｏｘｐｒｏ２．５ｆｏｒｗｉｎｄｏｗｓｉｓａｐｏｐｕｌａｒｓｏｆｔｗａｒｅｆｏｒｄａ...

简介：Theionsaturationcurrentisveryimportantinprobetheory,whichcanbeusedtomeasuretheelectrontem-peratureandthefloatingpotential.Inthiswork,theeffectsofenergeticionsontheionsaturationcurrentarestudiedviaparticle-in-cellsimulations.Itisfoundthattheenergeticionsandbackgroundionscanbetreatedseparatelyasdifferentspecies,andthevsatisfytheirindividualBohmcriterionatthesheathedge.

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