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简介：七十年以前，Myers和Steenrod证明没有边界歧管的Riemannian的isometry组有谎言组的结构。在2007，Bagaev和Zhukova为Riemannianorbifold证明了一样的结果。在这份报纸，作者首先证明isometryRiemannian组织歧管有边界的M至多有尺寸吗？dimM(dimM？1)。然后有他们的isometry组达到的边界的如此的Riemannianmanifolds前面的最大的尺寸完全被分类。与边界歧管的关键词Riemannian-Isometry-旋转地对称的度量标准-主要轨道2000苏布杰克特先生分类53C99-57S15工程由国家天赋支持了中国的科学基础(Nos.10601053，10671096，10871184，10971104)。

简介：Sequentialsimulationoflargecomplexphysicalsystemsisoftenregardedasacomputationallyexpensivetask.Inordertospeed-upcomplexdiscrete-eventsimulations,theparadigmofParallelandDistributedDiscreteEventSimulation(PDES)hasbeenintroducedsincethelate70s.Inthispaperwe'llanalyzetheapplicabilityofPDEStothemodelingandanalysisoflargecomputersystem;suchsystemsareincreasinglycommonintheareaofHighEnergyandNuclearPhysics,becausemanymodernexperimentsmakeuseoflarge"computefarms",Somefeasibilitytestshavebeenperformedonaprototypedistributedsiumulator.

简介：Thepaperrepresentsarigoroustreatmentoftheunderlyingquantumtheory,notjustinwordsbutprovidingtheunderlyingtechnicaldetails,astowhymatteroccupiessolargeavolumeanditsintimateconnectionwiththePauliexclusionprinciple,asmoreandmorematterisputtogether,aswellasofthecontractionorshrinkageof'bosonicmatter',uponcollapse,forwhichthePauliexclusionisabolished.Fromthederivedexplicitboundsofintegralsofpowersoftheparticlenumberdensities,explicitboundsonprobabilitiesoftheoccurrencesoftheeventsjustdescribedareextracted.Theseprobabilitiesleadonetoinferthechangeofthe'size'orextensionofsuchmatter,uponexpansionorcontraction,respectively,astheircontentisincreased.

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简介：Supernova(SN)neutrinosdetectedontheEartharesubjecttotheshockwaveeffects,theMikheyev–Smirnov–Wolfenstein(MSW)effects,theneutrinocollectiveeffectsandtheEarthmattereffects.Consideringtherecentexperimentalresultaboutthelargemixingangleθ13(■8.8°)providedbytheDayaBayCollaborationandapplyingtheavailableknowledgefortheneutrinoconversionprobabilityinthehighresonanceregionofSN,PH,whichisintheformofhypergeometricfunctioninthecaseoflargeθ13,wededucetheexpressionofPHtakingintoaccounttheshockwaveeffects.ItisfoundthatPHisnotzeroinacertainrangeoftimeduetotheshockwaveeffects.Afterconsideringallthefourphysicaleffectsandscanningrelevantparameters,wecalculatetheeventnumbersofSNneutrinosforthe"Garching"distributionofneutrinoenergyspectrum.Fromthenumericalresults,itisfoundthatthebehaviorsofneutrinoeventnumbersdetectedontheEarthdependontheneutrinomasshierarchyandneutrinospectrumparametersincludingthedimensionlesspinchingparameterβα(whereαreferstoneutrinoflavor),theaverageenergy,andtheSNneutrinoluminositiesLα.Finally,wegivetherangesofSNneutrinoeventnumbersthatwillbedetectedattheDayaBayexperiment.

简介：TheresultsofBryeonlargedeviationsforempiricalmeasuresofstationaryφ-mixingsequencesareextended.Bryestateshisresultsintheusualweaktopologyonthespaceofprobabilitymeasures.Inthispaper,undersomewhatweakerassumptionsthanthoseofBryc,theauthorextendsBrye'sresultsbytakingthefinertopologywhichisgeneratedbytheintegralsoverboundedmeasurablefunctions.

简介：Inthispaper,wederivealawoflargenumbersunderthenonlinearexpectationgeneratedbybackwardstochasticdifferentialequationsdrivenbyG-Brownianmotion.

简介：尽管有在中国喷雾器上增加注意，从来没有它的一般特征的遍及全国的调查。这份报纸在23个地点为喷雾器论述元素的数据在并且在中国附近，主要从文学，和表演绘画一些大规模模式。艾尔，Na，和Se被用来代表外壳，水兵，和污染部件分别地。大多数模式在SWNE被排列。分别地，艾尔和Na对NW和SE最高级，他们的比率变化很快接近海岸。Se从NW日益增多地在华中，和Se/Al比率(污染对外壳的喷雾器的指示物)增加上有宽广最大值到SE。为模仿污染喷雾器的一个简单索引，使用人口密度，年度降水，和吝啬的风速度，足够地复制污染喷雾器的大规模模式并且显示出在NW的外壳的艾尔怎么逐渐地向SE让路给flyash艾尔。

简介：Beampositioningstabilityinalaser-driveninertialconfinementfusion(ICF)facilityisavitalproblemthatneedstobefixed.Eachlaserbeaminthefacilityistransmittedinlotsofopticsforhundredsofmeters,andthentargetedinamicro-sizedpellettorealizecontrollablefusion.Anyturbulenceintheenvironmentinsuchlong-distancepropagationwouldaffectthedisplacementofopticsandfurtherresultinbeamfocusingandpositioningerrors.Thisstudyconcludedthattheerrorsoneachoftheopticscontributedtothetarget,anditpresentsanefficientmethodofenhancingthebeamstabilitybyeliminatingerrorsonerror-sensitiveoptics.Optimizationsoftheopticalsystemandmechanicalsupportingstructuresarealsopresented.

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简介：ThelateststepsinthesteadyevolutionoftheCERNComputerCentrehavebeentoreducethemultitudeofclustersandarchitecturesandtoconcentrateoncommodityhardware.AnactiveRISCdecommissioningprogramhasbeenundertakentoencouragemigrationtoLinux,andaprogramofmergingdedicatedexperimentclustersintolargersharedfacilitieshasbeenlaunched.Thispaperdescribestheseprogramsandtheexperiencesrunningtheresultantmulti-hundrednodesharedLinuxclusters.

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简介：Oneofthesub-systemsoftheTrigger/DAQsystemofthefutureATLASexperimentistheOnlineSoftwaresystem.Itencompassesthefunctionalityneededtoconfigure,controlandmonitortheDAQ.ItsarchitectureisbasedonacomponentstructuredescribedintheATLASTrigger/DAQtechnicalproposal.ResularintegrationtestsensureitssmoothoperationintestbeamsetupsduringitsevolutionarydevelopmenttowardsthefinalATLASonlinesystem.Feedbackisreceivedandreturnedintothedevelopmentprocess.Studiesofthesystem.behaviorhavebeenperformedonasetofupto111PCsonaconfigurationwhichisgettingclosertothefinalsize,Largescaleandperformancetestsoftheintegratedsystemwereperformedonthissetupwithemphasisoninvestigatingtheaspectsoftheinter-dependenceofthecomponentsandtheperformanceofthecommunicationsoftware.Ofparticularinterestweretheruncontrolstatetransitionsinvariousconfigurationsoftheruncontrolhierarchy.Forthepurposeofthetests,thesoftwarefromotherTrigger/DAQsub-systemshasbeenemulated.Thispaperpresentsabriefoverviewoftheonlinesystemstructure,itscomponentsandthelargescaleintegrationtestsandtheirresults.

简介：Accurateaerodynamicmeasurementsinthehypersonicflowoflargeaircraftmodelsintunnelshavepracticalsignificance,butposeasignificantchallenge.Novelaerodynamicforcemeasurementmethodshavebeenproposed,butlacktheoreticalsupport.Theformsoftheforcesignalstechniquesforsignalprocessingandcalculationofaerodynamicsareespeciallyproblematic.Atheoreticalstudyisconductedtoinvestigatethedynamicpropertiesbasedonmodelsofthedraw-rodsystemandslenderrods.Theresultsindicatethattheinertiaitemcanbeneglectedintherodgoverningequation;further,thesolutionsshowthatthesignalsofeachrodareacombinationofaerodynamicsignals(withaconstantvalue)andsinesignals,whichcanbeverifiedbyexperimentalshocktunnelresults.Signalprocessingandaerodynamicscalculationtechniquesarealsofoundtobeachievableviatheflatpartofthesignals.

简介：Electronicsystemswithlargestretchabilityhavemanyapplications.Apreciselycontrolledbucklingstrategytoincreasethestretchabilityhasbeendemonstratedbycombininglithographicallypatternedsurfacebondingchemistryandabucklingprocess.Thebuckledgeometrywasassumedtohaveasinusoidalform,whichmayresultinerrorstodeterminethestrainsinthefilm.Atheoreticalmodelispresentedinthislettertostudythemechanicsofthistypeofthinfilm/substratesystembydiscardingtheass...

简介：OptimisinguseoftheWeb(WWW)forLHCdataanalysisisacomplexproblemandillustratesthechallengesarisingfromtheintegrationofandcomputationacrossmassiveampuntsofinformationdistributedworldwide.Findingtherightpieceofinformationcan,attimes,beextremelytime-consuming,ifnotimpossible,SO-calledGridshavebeenproposedtofacilitateLHCcomputingandmanygroupshaveembarkedonstudiesofdatareplication,datamigrationandnetwrokingplhilosophies.Otheraspectssuchastheroleofmoddleware'forGridsareemergingasrequiringresearch.Thispaperpositionstheneedforappropriatemiddlewarethatenablesuserstoresolvephysicsqueriesacrossmassivedatasets.Itidentifiestheroleofmeta-dataforqueryresolutionandtheimportanceofInformationGridsforhigh-energyphysicsanalysisratherthanjustcomputationalorDataGrids,ThispaperidentifiessoftwarethatisbeingimplementedatCERNtoenablethequeryingofverylargecollaboratingHEPdata-sets,initiallybeingemployedfortheconstructionofCMSdetectors.

简介：Aclassofnonlineardegeneratediffusionequationsisinvestigatedinthispaper.Itisshownthatthesolutionsconvergetothecorrespondingsimilarsolutionsast→+∞.TherateoftheconvergenceinL~1-normandL~--normareobtainedrespectively.

简介：InthefieldofComptonscatterimaging,theproblemofhowtogetameaningfulimagefromlarge-scaleobjectisstillnotfullysttled.Thedifficultymainlyliesinthemethodofthecompensationoftheattenuation,Basedontheprincipleofsmall-angleforwardscattering,anewattenuationcorrectionmethodisdeducedinthispaper,wecandistinguishairfromothermaterialsevenitisdeepinsidealarge-scaleobject.Toverifyourmethod,wedesignamodelofaone-meter-longobjectandperformMonteCarlosimulationswithMCNPsoftware.

简介：GyroscopicdynamicsystemcanbeintroducedtoHamiltoniansystem.BasedonanadjointsymplecticsubspaceiterationmethodofHamiltoniangyroscopicsystem,anadjointsymplecticsubspaceiterationmethodofindefiniteHamiltonianfunctiongy-roscopicsystemwasproposedtosolvetheeigenvalueproblemofindefiniteHamiltonianfunctiongyroscopicsystem.ThecharacterthattheeigenvaluesofHamiltoniangyroscopicsystemareonlypureimaginaryorzerowasused.TheeigenvaluesthatHamiltonianfunctionisnegativecanbeseparatedsothattheeigenvalueproblemofpositivedefiniteHamiltonianfunctionsystemwaspresented,andanadjointsymplecticsubspaceiterationmethodofpositivedefiniteHamiltonianfunctionsystemwasusedtosolvetheseparatedeigenvalueproblem.Therefore,theeigenvalueproblemofindefiniteHamiltonianfunctiongyroscopicsystemwassolved,andtwonumericalexamplesweregiventodemonstratethattheeigensolutionsconvergeexactly.