简介：LargeHighEnergyandNuclearPhysics(HENP)databasesarecommonlystoredonrobotictapesystemsbecauseofcostconsiderations.Later,selectedsubsetsofthedataarecachedintodiskcachesforanalysisordatamining.Becauseoftherelativelylongtimetomount,seek,andreadatape,itisimportanttominimizethenumberoftimesthatdataiscachedintodisk.Havingtoolittlediskcachewillforcefilestoberemovedfromdiskprematurely,thusreducingthepotentialoftheirsharingwithotherusers.Similarly,havingtoofewtapedriveswillnotmakegooduseofalargediskcache,asthethroughputfromthetapesystemwillformthebottleneck.Balancingthetapeanddiskresourcesisdependentonthepatternsoftherequeststothedata.Inthispaper,wedescribeasimulationthatcharacterizessuchasystemintermsofthersourcesandtherequestpatterns.Welearnfromthesimulationwhichparametersaffecttheperformanceofthesystemthemost.Wealsoobservefromthesimulationthat,thereisapointbeyondwhichitisnotworthinvestinginadditionalresourcesasthebenefitistoomarginal.Wecallthispointthe"point-of-no-benefit"(orPNB),andshowthatusingthisconceptwecanmoreeasilydiscovertherelationshipofvariousparameterstotheperformanceofthesystem.

简介：Themoleculardynamicsmethodisusedtosimulateauniaxialtensiledeformationof3.8nmnano-NiAlalloywithcurvedamorphous-likeinterfacesat0K.Plasticdeformationbehaviourisstudiedbyexaminingthestrainstressrelationshipandthemicrostructuralevolutioncharacteristics.Atomiclevelanalysishasshownthatthemicro-strainisessentiallyheterogeneousinsimulatednano-phasesamples.Theplasticdeformationisnotonlyattributedtotheplasticityofinterfaces,butalsoaccompaniedwiththeplasticshearstrainmechanisminsidelatticedistortionregionsandgrains.

简介：Thedomesticrainwaterharvestingsystem(DRHS)isanimportantfreshwatersourceforZhoushan,Chinatomeetwaterdemands.AcomputermodelhasbeengeneratedtoanalyzetheperformanceoftheDRHSwithdifferentratiosofD/(AR)(waterdemand/averageannualcollectedrunoff)andS/(AR)(storagecapacity/averageannualcollectedrunoff).TheperformanceoftheDRHSwasanalyzedbymeansofthemodelsimulation,whichisdescribedbyitswatershortagerate(WSR)andwaterlossrate(WLR).Usingthedata,asetofdimensionlessdesigncalculationchartisintroduced.Whenthewaterdemandandrequirementofthedesignareknown,theestablishedchartcanbeusedtoeasilydeterminethestoragecapacityandcatchment(roofandothersurface)arearequiredtoachieveadesiredperformancelevel.

简介：在这份报纸，我们学习稳定性局部地旋转地对称(LRS)Bianchi我在通过阶段空间分析的f(T)重力的宇宙模型。我们假设f(T)严肃能被当作象完美的液体一样表现的有效黑暗精力，并且建议在无压力的物质以及黑暗精力之间有相互作用。我们构造方程的相应自治系统检查模型的稳定性因为非幽灵，真空和幽灵分阶段执行。批评的点作为与相比在幽灵阶段仍然保持更稳定，这被结束非幽灵和真空盒子。最后，我们通过一些宇宙论的参数讨论模型的宇宙论的行为。

简介：AnelectroncyclotronresonanceheatingsystemwillbeconstructedinthenearfutureforECHandECCDinvestigationonHL-2Atokamak.ThenewECRHsystemwillprovideHL-2Awithapowercapabilityof1MWfor1satfrequencyof70GHz.Consequently,itisveryimportanttochooseasuitablegyrotronandsomecomponentsforHL-2AECRHsystem.

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简介：Atmosphericconcentrationsofpolycyclicaromatichydrocarbons(PAHs)weremeasuredduringvariousseasonsatsixdifferentcities/locationsinQingdaoalongshore.TheannualaveragePAHsconcentrationrangedfrom16ng/m3(atacleancom-paredsite)to308ng/m3(inanindustrysite).TheaveragetotalparticulatePAHsconcentrationwas74.5ng/m3withahigherconcentrationofparticulatePAHsinwinter.Basedonayear-rounddataset,thesourcesofPAHsintheairofQingdaoweredrawnbyprincipalfactoranalysisandcorrelationanalysis.TheresultsindicatedthatvehicleemissionsandoilburningwerethemainsourceofPAHsinQingdaoalongshore.

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简介：Rhythmofbrainactivitiesrepresentsoscillationsofpostsynapticpotentialsinneocortex,thereforeitcanserveasanindicatorofthebrainactivitystate.Inordertochecktheconnectivityofbrainrhythm,thispaperdevelopsanewmethodofconstructingfunctionalnetworkbasedonphasesynchronization.Electroencephalogram(EEG)datawerecollectedwhilesubjectslookingatagreencrossintwostates,performinganattentiontaskandrelaxingwitheyes-open.TheEEGfromthesetwostateswasfilteredbythreeband-passfilterstoobtainsignalsoftheta(4-7Hz),alpha(8-13Hz)andbeta(14-30Hz)bands.Meanresultantlengthwasusedtoestimatestrengthofphasesynchronizationinthreebandstoconstructnetworksofbothstates,andmeandegreeKandclustercoefficientCofnetworkswerecalculatedasafunctionofthreshold.Theresultshowshigherclustercoefficientintheattentionstatethanintheeyes-openstateinallthreebands,suggestingthatclustercoefficientreflectsbrainstate.Inaddition,anobviousfronto-parietalnetworkisfoundintheattentionstate,whichisawell-knownattentionnetwork.Theseresultsindicatethatattentionmodulatesthefronto-parietalconnectivityindifferentmodesascomparedwiththeeyes-openstate.Takentogetherthismethodisanobjectiveandimportanttooltostudythepropertiesofneuralnetworksofbrainrhythm.

简介：热分解和波兰的沥青的煤的oxy燃料燃烧特征用非等温的thermogravimetric分析被学习。热分解测试证明集体损失侧面是几乎类似的直到870??郱

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简介：Bymeansofinktracevisualizationandtopologicalanalysis,thispaperinvestigatesthetopologicalstructureoftheflowpatternsurrondingbothendwallsandbladesurfacesforalowaspectratiolinearrotorcascadewithtipclearance.Thestructureoftheflowpatternshowsthatmostofthesingularpointandseparationlinesarelocatedintheupperhalfspanregionofthetestedcascadewheretheaerodynamicbehaviorsaredeteriorated.

简介：Basedonpremixedflame,thetheoreticalmodeloftransportpropertieswithtemperaturevariationwasestablishedinsideapreheatedzone.Lewisnumberofthedeficient-to-stoichiometrichydrocarbon/airmixturehasbeentheoreticallypredictedoverawiderangeofpreheatedtemperature.Thesepredictionsarecomparedwiththeexperimentaldataontransportpropertiesthatexistinthelitexature.TheresponseoftheburningvelocitytoflamestretchcanbeparameterizedbythelaminarflamespeedandMarksteinlength.Therefore,ifthelaminarflamespeedandMarkateinnumbercouldbeaccuratelysimulatedbyusingananalyticexpressionofcharacterizedtemperature,equivalenceratio,andLewisnumber,theresultsareapplicabletothepredictionofmethane,acetylene,ethylene,ethane,andpropaneflames.Expandingpreviousstudiesontheextinctionofpremixedflamesundertheinfluenceofstretchandincompletereaction,theresultswerefurtherclassifiedandrescaled.Finally,itcouldbeinferredthatparameterpq,therescaledextinctionKarlovitznumbercouldbeusedtoexplainthedegreeofflamequench.

简介：Hightemperaturelatentthermalstorageisoneofthecriticaltechniquesforasolardynamicpowersystem.Thispaperpresentsresultsfromheattransferanalysisofaphasechangesaltcontainmentcanister.Athree-dimensionalanalysisprogramisdevelopedtomodelheattransferinaPCMcanister.Analysisincludeeffectsofasymmetriccircumferenceheatflux,conductionincanisterwalls,liquidPCMandsolidPCM,voidvolumechangeandvoidlocation,andconductionandradiationacrossPCMvaporvoid.ThePCMphasechangeprocessismodeledusingtheenthalpymethodandthesimulationresultsarecomparedwiththoseofothertwo-dimensionalinvestigations.It'sshownthattherearelargedifferencewithtwo-dimensionalanalysis,thereforethethree-dimensionalmodelisnecessaryforsystemdesignofhightemperaturelatentthermalstorage.

简介：Wepresentaninterferometrysetupandthedetailedfringeanalysismethodforintenseshortpulse(SP)laserexperiments.Theinterferometryschemewasrefinedthroughmultiplecampaignstoinvestigatetheeffectsofpre-plasmasonenergeticelectronsattheJupiterLaserFacilityatLawrenceLivermoreNationalLaboratory.Theinterferometerusedafrequencydoubled(λ=0.527μm)0.5pslongopticalprobebeamtomeasurethepre-plasmadensity,aninvaluableparametertobetterunderstandhowvaryingpre-plasmaconditionsaffectthecharacteristicsoftheenergeticelectrons.Thehardwareofthediagnostic,dataanalysisandexampledataarepresented.ThediagnosticsetupandtheanalysisprocedurecanbeemployedforanyotherSPlaserexperimentsandinterferograms,respectively.

简介：TheLHCexperimentsatCERNwillgeneratehugevolumesofdata-severalPBperyearatdataratesbetween100MB/sand1.5GB/s.Thestorageandanalysisofthesedatapresentamajorchallenge.IncollaborationwithothermembersoftheformerRD45project,thecentraldatabasesupportgroupatCERNhasbeenworkingonthisissueforseveralyears,leadingtoproductionuseofapotentialsolution,basedonthecombinationofanObjectDatabaseandMassStoragesystem,botheatCERNandoutside.

简介：在动人的水平圆柱的热来源附近阶段变化材料融化的接触，在它的自己的重量下面下降了，在这篇文章被调查。在经常的表面热流动下面的一个融化的模型被建立。厚度和压力分布里面的分析结果融化层，稳定的融化速度被使用融化理论的接触获得。融化的法律被讨论，并且由温度差别与接触融化的相比开车。伪稳定的融化速度被热来源密度的热来源，和变化的热流动决定，这被发现在融化上有更少的效果速度。

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