简介:AnaffordablesolutiontoTier-3RegionalCenter(RC)ispresentedinthistalk,asimpleprototypehasbeensetupforevaluationofthesystemperformance,thisprototypecanbeeasilyscaledtobiggerone.Asetofmeasurementshavebeenconductedinbothcomputerandnetworksystembehavioursinmultipleconcurrentlyrunningjobscontexts.Inthetalkthesemeasuredresultsaretalkedanddiscussed,includingsystemandnetworkeffectiveutilizationsandlimitations,andtheidentifiedbottlenecksindifferentnetworklayouts,andthecomparisonswithsimulation.
简介:ThestudiesundertakentopreparetheTechnicalDesignReportoftheATLAS3^rdLevelTrigger(EventFilter)areperformedondifferentprototypesbasedondifferenttechnologies.wepresentherethemostrecentresultsobtainedforthesupervisionoftheprototypebasedonconventional,off-the-shelfPCmachinesandJavaMoblieagenttechnology.
简介:Thedolly+isaLinuxapplicationprogramtoclonefilesanddiskpartitionimagefromaPCtomanyothers.Byusingseveraltechniquessuchaslogicalringconnection,multithreadingandpipelining,itcouldachievehighperformanceandscalability.Forexample,intypicalcondition,installationstoahundredPCstakesalmostequivalenttimefortwoPCs.TogetherwiththeIntelPXEandtheRedHatkickstart,automaticandveryfastsysteminstallationandupgradingcouldbeperformed.
简介:Quasiclassicaltrajectorycalculation(QCT)isusedfrequentlyforstudyingcollisionalenergytransferbetweenhighlyvibrationallyexcitedmoleculesandbathgases.Inthispaper,theQCToftheenergytransferbetweenhighlyvibrationallyexcitedC6F6andN2,O2andgroundstateC6F6wereperformed.TheresultsindicatethathighlyvibrationallyexcitedC6F6transferredvibrationalenergytovibrationaldistributionofN2,O2andgroundstateC6F6,sotheyareV-Venergytransfer.EspeciallyitismainlyV-VresonanceenergytransferbetweenexcitedC6F6andgroundstateC6F6,excitedC6F6transfersmorevibrationalenergytogroundstateC6F6thantoN2andO2.ThevaluesofQCT,-〈△Evib〉ofexcitedC6F6aresmallerthanthoseofexperiments.
简介:Lowcyclefatiguecrackpropagation(FCP)behavioroftwoPC/ABSblendswithaweightra-tioofPCtoABSbeing80/20and60/40,respectively,isinvestigated.Experimentsarecarriedoutbyusingstandardcompacttension(CT)specimens.Thefracturesurfacesareexaminedwithascanningelectronmi-croscope(SEM).ItisshownthattheFCPresistanceofPC/ABSblendwith20%ABSparticlesishigherthanthatofPC/ABSblendwith40%ABSparticles.ItisfoundthatproperABSparticlecontentcanresultinthetougheningofPC/ABSblendsthroughparticlecavitationandshearyieldinginmatrix.
简介:TheimportanceoftheInternettomodernHighEnergyPhysicsCollaboratorsisclearlyimmense,andunderstandinghownewdevelopmentsinnetworktechnologyimpactnetworksiscriticaltothefuturedesignofexperiments.ThenextgenerationInternetProtocol(IPv6)isbeingdeployedontestbedsandproductionnetworksthroughouttheworld.Theprotocolhasbeendesignedtosolvetodaysinternetproblems,andmanyofthefeatureswillbecoreInternetservicesinthefuture.Inthistalkthefeaturesoftheprotocolwillbedescribed.DetailswillbegivenonthedeploymentatsitesimportanttoHighEnergyPhysicsResearchandthenetworkservicesoperatingatthesesites,InparticularIPv6deploymentontheU.S.EnergySciencesNetwork(ESnet)willbereviewed.TheconnectivityandperformancebetweenHighEnergyPhysicsLaboratories,UniversitiesandInstituteswillbediscussed.
简介:IntroductionGuillain-Barresyndrome(GBS)isconsideredtobeanautoimmunedisorderofperipheralnervoussystem’.Thebalanceofsympatheticnervesandparasympatheticnervesisdisturbed,whichleadstocompleteparalysisi’2’3.Moslpatientsshowthetypicalsymptomsafterbeinginfe...