学科分类
/ 1
7 个结果
  • 简介:Run2atFermilabbeganinMarch,2001,CDFwillcollectdataatamaximumrateof20MByte/secduringtherun.Theofflinereconstructionofthisdatamustkeepupwiththedatatakingrate.ThisreconstructionoccursonalargePCfarm,whichmusthavethecapacityforquasi-realtimedatareconstruction,forreprocessingofsomedataandforgenerationandprocessingofMonteCarlosamples.Inthispaerwewillgivethedesignrequirementsofrthefarm,describethehardwareandsoftwaredesignusedtomeetthoserequirements,describetheearlyexperienceswithRun2dataprocessing,anddiscussfutureprospectsforthefarm,includingsomeideasaboutRun2bprocessing.

  • 标签: 脱机计算机 多量计算系统 软件开发
  • 简介:Offlinenetworktrafficanalysisisveryimportantforanin-depthstudyupontheunderstandingofnetworkconditionsandcharacteristics,suchasuserbehaviorandabnormaltraffic.WiththerapidgrowthoftheamountofinformationontheInternet,thetraditionalstand-aloneanalysistoolsfacegreatchallengesinstoragecapacityandcomputingefficiency,butwhichistheadvantagesforHadoopcluster.Inthispaper,wedesignedanofflinetrafficanalysissystembasedonHadoop(OTASH),andproposedaMapReduce-basedalgorithmforTopNuserstatistics.Inaddition,westudiedthecomputingperformanceandfailuretoleranceinOTASH.FromtheexperimentswedrewtheconclusionthatOTASHissuitableforhandlinglargeamountsofflowdata,andarecompetenttocalculateinthecaseofsinglenodefailure.

  • 标签: 网络流量分析 系统 用户行为 计算效率 容错能力 网际网路
  • 简介:TheBESdetectorhasoperatedforabout12years,andtheBESofflinedataanalysisenvironmentalsohasbeendevelopedandupgradedalongwithdevelopmentsoftheBEShardwareandsoftware.TheBESⅢsoftwaresystemwilloperateformanyyears.Thustheyshouldmeetdevelopmentsofthenewtechnologyinsoftware,Itshouldbehighlyflexible,Powerful,stableandeasyformaintenance.Andfollowingpointsshouldbetakenintoaccount:1)TobenefitthecollaborationandmakebetterexchangeswiththeinternationalHEPexperimentsthissystemshoulebesetupbyadoptingorreferringthenewesttechnologyinthesoftwarefromadvancedexperimentsintheworld.2).ItshouldsupporthundredsoftheexistingBESsoftwarepackagesandserveforbotholdexpertswhofamiliarwithBESIIsoftwareandcomputingenvironmentandnewmemberswhoisgoingtobenefitfromthenewsystem.3).ThemostBESIIexistingpackageswillbemodifiedorre-designedaccordingtothehardwarechanges.

  • 标签: 分析软件 BEPCⅡ实验 数据存储
  • 简介:文章对比了xMOOC和cMOOC两种MOOC形式,分析了讲授型、任务驱动式、支架式以及协作研究式四种信息化教学模式,结合"95后"高职院校学生的特点,提出了基于MOOC构建高职院校"OnlineToOffline"教学模式,并结合专业知识、专业技能和职业素质对O2O教学模式进行了介绍。

  • 标签: MOOC 高职院校 ONLINE To Oflinef 教学模式
  • 简介:Modernchirpedpulseamplificationlasersystemswithcontinuouslyimprovingcontrollabilityandincreasingpowerareabouttoreachintensitiesofupto10~(22)Wcm~(-2)andhaveproventheirpotentialtoaccelerateionsoutofplasmatoseveraltenspercentofthespeedoflight.Forenablingapplication,oneimportantstepistoincreasetherepetitionrateatwhichionbunchesareatthedisposal.Inparticular,techniquesusedsofarforthinfoiltargetproductioncanrequireseveraldaysofpreparingreasonableamountsforasinglecampaign.Inthispaperwedescribethereasonablydropletmethodwhichwehavetestedandimprovedsothattheemergingfoilswiththicknessesofafewnanometresuptomicrometrecanbeusedastargetsforlaserionacceleration.Theirqualityandperformancecancompetewithsofaremployedtechniquestherebyenablingtheproductionofhundredsoftargetsperday.

  • 标签: 目标设计和制造和物质的超短波的脉搏激光相互作用
  • 简介:Withtherapiddevelopmentofinformationtechnology,itappearsthatasingleonlinechannelorasingleofflineisnotabletomeettheconsumers'shoppingneeds,theenterpriseswillhaveabetterdevelopmentonlybymakingtheonlineandofflinechannelsbeinfusionandpromoteeachother.Thispaperwillcombinethegeneralbusinessmodeswithcorporatechannelintegrationpattern,buildoutdifferentformsofthemarketmodeincludingmarket,enterpriseandcustomersbasingondifferentinfluencelevel,andanalyzeouttheenterprisehowtoimplementthebusinessmodeofintegrationbasingontheinfluencefactorsunderthebackgroundofdifferentbusinessmodes,thenapplythecorrespondingO2Oprocesstothemode,soastobroadentheenterprisesellingchannelsforabetterdevelopment.

  • 标签: Businessmode ONLINE and offline INTEGRATION of