简介：Run2atFermilabbeganinMarch,2001,CDFwillcollectdataatamaximumrateof20MByte/secduringtherun.Theofflinereconstructionofthisdatamustkeepupwiththedatatakingrate.ThisreconstructionoccursonalargePCfarm,whichmusthavethecapacityforquasi-realtimedatareconstruction,forreprocessingofsomedataandforgenerationandprocessingofMonteCarlosamples.Inthispaerwewillgivethedesignrequirementsofrthefarm,describethehardwareandsoftwaredesignusedtomeetthoserequirements,describetheearlyexperienceswithRun2dataprocessing,anddiscussfutureprospectsforthefarm,includingsomeideasaboutRun2bprocessing.

简介：Offlinenetworktrafficanalysisisveryimportantforanin-depthstudyupontheunderstandingofnetworkconditionsandcharacteristics,suchasuserbehaviorandabnormaltraffic.WiththerapidgrowthoftheamountofinformationontheInternet,thetraditionalstand-aloneanalysistoolsfacegreatchallengesinstoragecapacityandcomputingefficiency,butwhichistheadvantagesforHadoopcluster.Inthispaper,wedesignedanofflinetrafficanalysissystembasedonHadoop(OTASH),andproposedaMapReduce-basedalgorithmforTopNuserstatistics.Inaddition,westudiedthecomputingperformanceandfailuretoleranceinOTASH.FromtheexperimentswedrewtheconclusionthatOTASHissuitableforhandlinglargeamountsofflowdata,andarecompetenttocalculateinthecaseofsinglenodefailure.

简介：TheBESdetectorhasoperatedforabout12years,andtheBESofflinedataanalysisenvironmentalsohasbeendevelopedandupgradedalongwithdevelopmentsoftheBEShardwareandsoftware.TheBESⅢsoftwaresystemwilloperateformanyyears.Thustheyshouldmeetdevelopmentsofthenewtechnologyinsoftware,Itshouldbehighlyflexible,Powerful,stableandeasyformaintenance.Andfollowingpointsshouldbetakenintoaccount:1)TobenefitthecollaborationandmakebetterexchangeswiththeinternationalHEPexperimentsthissystemshoulebesetupbyadoptingorreferringthenewesttechnologyinthesoftwarefromadvancedexperimentsintheworld.2).ItshouldsupporthundredsoftheexistingBESsoftwarepackagesandserveforbotholdexpertswhofamiliarwithBESIIsoftwareandcomputingenvironmentandnewmemberswhoisgoingtobenefitfromthenewsystem.3).ThemostBESIIexistingpackageswillbemodifiedorre-designedaccordingtothehardwarechanges.

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。

简介：Modernchirpedpulseamplificationlasersystemswithcontinuouslyimprovingcontrollabilityandincreasingpowerareabouttoreachintensitiesofupto10~(22)Wcm~(-2)andhaveproventheirpotentialtoaccelerateionsoutofplasmatoseveraltenspercentofthespeedoflight.Forenablingapplication,oneimportantstepistoincreasetherepetitionrateatwhichionbunchesareatthedisposal.Inparticular,techniquesusedsofarforthinfoiltargetproductioncanrequireseveraldaysofpreparingreasonableamountsforasinglecampaign.Inthispaperwedescribethereasonablydropletmethodwhichwehavetestedandimprovedsothattheemergingfoilswiththicknessesofafewnanometresuptomicrometrecanbeusedastargetsforlaserionacceleration.Theirqualityandperformancecancompetewithsofaremployedtechniquestherebyenablingtheproductionofhundredsoftargetsperday.

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简介：Withtherapiddevelopmentofinformationtechnology,itappearsthatasingleonlinechannelorasingleofflineisnotabletomeettheconsumers＇shoppingneeds,theenterpriseswillhaveabetterdevelopmentonlybymakingtheonlineandofflinechannelsbeinfusionandpromoteeachother.Thispaperwillcombinethegeneralbusinessmodeswithcorporatechannelintegrationpattern,buildoutdifferentformsofthemarketmodeincludingmarket,enterpriseandcustomersbasingondifferentinfluencelevel,andanalyzeouttheenterprisehowtoimplementthebusinessmodeofintegrationbasingontheinfluencefactorsunderthebackgroundofdifferentbusinessmodes,thenapplythecorrespondingO2Oprocesstothemode,soastobroadentheenterprisesellingchannelsforabetterdevelopment.