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简介：Tomeettherequirementsandfunctionsofspacecraftdynamicsimulationandemulationaccordingtodifferentflightperiods,therealizationofrealtimesystemwithdifferentconfigurations,controlofthedevelopmentcycleandexamplesofapplicationarepresentedindetail.Onthebasisofthesatellitedynamicsimulationtechnology,distributednetworkintegratedwiththecomponenttestingplatformsisusedtoconstructamulti-levelbusnetworksystem.Thesystemtakesintofullconsiderationtheconfigurationflexibility,realtimecharacteristicsandextendibility.Testresultsshowthatboththesoftwarealgorithmandthehardwareintegrationofthesystemarecorrectandeffective.Thesystemcouldbeusednotonlyastheeffectivetoolofdesigninganddevelopingthecomponentsandwholeassemblyofsatellitesandmissiles,butalsoforthedynamicsimulationandemulationinallphasesofaspacecraftdevelopmentcycle.

简介：Thestarnetworks,whichwereoriginallyproposedbyAkersandHarel,havesufferedfromarigorousrestrictiononthenumberofnodes.Thegeneralincompletestarnetworks(GISN)areproposedinthispapertorelievethisrestriction.AnefficientlabelingschemeforGISNisgiven,androutingandbroadcastingalgorithmsarealsopresentedforGIS.ThecommunicationdiameterofGISNisshowntobeboundedby4n-7.TheproposedsinglenodebroadcastingalgorithmisoptimalwithrespecttotimecomplexityO(nlog2n).

简介：Signlanguageisavisual-gesturallanguagemainlyusedbyhearingimpairedpeopletocommunicatewitheachother.Gestureandfacialexpressionareimportantgrammarpartsofsignlanguage.Inthispaper,atext-basedtransformationmethodofChinese-Chinesesignlanguagemachinetranslationisproposed.Gestureandfacialexpressionmodelsarecreatewd.Andapracticalsystemisimplemented.TheinputofthesystemisChinesetext.Theoutputofthesystemis'graphicsperson'whocangesticulateChinesesignalgnuageaccompainedbyfacialexpressionthatcorrespondstotheChinesetextenteredsoastorealizeautomatictranslationfromChinesetexttoChinesesignlanguage.

简介：ＣＡＳＥＳＴＵＤＹＯＦＣＡＤＩＣＡＰＰＩＮＴＥＧＲＡＴＩＯＮＦＯＲＲＯＴＡＴＩＯＮＡＬＰＡＲＴＳＷｕＨｏｎｇｍｉｎｇ；ＷａｎｇＹａｐｉｎｇ；ＴａｎｇＲｏｎｇｘｉＣＡＳＥＳＴＵＤＹＯＦＣＡＤＩＣＡＰＰＩＮＴＥＧＲＡＴＩＯＮＦＯＲＲＯＴＡＴＩＯＮＡＬＰＡ...

简介：Windsontheeartharecommonlystrongenoughtoerodetransportanddepositsediment.Themodesofsandtransportbythewindaregreatlydifferentfromthosebywaterflow.Ontheotherhandwind-blownsandsareofamaterialcirculationprocessoftheearthsurface.Theyaffectwind-sandtransportfluxandsandejectionofaflux,thedamageofgrainsformedcannotbeneglectedinengineering.Becauseofthecomplexityofwindblownsandfluxsystem,theunderstandingofitsbasicmechanicsisnotyetclear.Thekeyforcesinsandsalutationmainlyincludes:thevalidgravity,airdragforce'Magnusforce'Saffmanforce'Bassetforce'additionalqualityforceandscatterforceamonggrains.Themostimportantforceinsandsalutationistheairdragforce.Computationofthesinglespheredragcoefficientanddoublespheresdragcoefficientispresentedforthedistancebetweentwospheresbeingsmallerthantwelvetimesofthespherediameterandthespheresbeingatdifferentangularpositions.Theflowinterferenceoftwosphereswasinvestigatedforthedistances=0.08dto12d,angularpositionθ=0to360andReynoldsnumber1≤Re≤1000.

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简介：thereconstructionoftransitionsurfaceisoneoftimeconsumingactivitiesduringsurfacemodelinginreverseengineering.Yetcurrentlyavailablesoftwareapplicationssufferfromshortcominginprocessingtheconnectionamongfreeformsurfaces.Inthispaper,anewmethodisputforwardcombiningSurfacerwithUnigraphicstoresolvethisproblem:CurvesandsurfacesarefirstconstructedinSurfacer,then,thefinisheddataisimportedintoUnigraphicsbasedonIGESformat.Atlast,thetransitionsurfacecanbereconstructedinUnigraphics.Theapplicationofthismethodintransitionsurfacereconstructionisillustratedbymeansoftwocasestudies,showingtheconnectionbetweenfreeformsurfaces;filletingandroundingamongmultiplesurfaces;transitionsurfacebetweentwosetsofsurfaces.

简介：与超级计算机的快速的开发，规模和复杂性曾经正在增加，并且可靠性和跳回面临更大的挑战。在容错有许多重要技术，例如基于差错预言的积极失败回避技术，反应容错基于检查点，和安排技术到改进可靠性。系统差错的特征上的质、量的描述为这些技术是很批评的。这研究在超级计算机把SunwayBlueLight称为的二典型petascale上分析失败的来源(基于多核心中央处理器)并且SunwayTaihuLight(基于异构的manycore中央处理器)。它揭开一些有趣的差错特征并且在主要部件差错之中发现未知关联关系。最后，纸在资源和不同时间跨度的各种各样的谷物分析二台超级计算机的失败时间，并且为petascale超级计算机造一个一致多维的失败时间模型。

简介：要求分析是在一个软件项目的一个重要阶段。分析被考察寻找歧义，技术矛盾和不完全的部分的文件的专家经常以一个非正式的方法执行。自动化仍然远非在要求分析正在被使用，自从自然语言，首先非正式、这样困难自动地对待。仅仅有一些工具，能分析文章。他们之一，叫的QuARS，被IstitutodiScienzaeTecnologiedell'Informazione开发并且能以歧义分析文章。这篇论文描述QuARS怎么在一个正式实验实验被使用在一个软件公司的要求评论进程以自动化的有效性和功效估计影响。电子增补材料这篇文章(doi:10.1007/s11390-007-9045-3)的联机版本contatins增补材料，它对授权用户可得到。

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简介：Internethasgraduallydemonstratedmoreandmoresuperiorityinmoderneducationsystem.Theintelligentonlinedrawingplatformbasedonnetwillprovidelearnerswithastudyingenvironmentwithoutlimitationintimeandspace.Basedonthetheoryofgraphics,thispaperdevelopedanintelligentonlinedrawingplatform(IODP)withJavathroughanalyzingtheteachingcharacterofdescriptivegeometry.IODPdevelopednotonlyhasaflexibledrawingenvironmentwiththefunctionofmutualdrawing,butalsoisabletojudgethedrawingmadebystudentsandgivefeedbackatthesametime.ThisplatformgivesaneffectivewayforInterneteducationonengineeringgraphics.

简介：StateofCharge(SOC)isusedtoadjusttheinitializationSOCvaluesoastomakeelectricvehiclesimulationresultsclosetorealvehicleperformance.ThispaperfirstlyanalysesthebatterySOCcorrectalgorithm,thenusesADVISORwhichisaelectricvehiclesimulationsoftwaretosimulateahybridelectriccarwiththreedifferentcasesofnoSOCcorrect,linearSOCcorrectandzerodeltaSOCcorrect,aswellasmakesthecompareandanalysisforthosesimulationresults.Intheend,anoverallconclusiontoSOCcorrectalgorithmisgiven.