简介：Numericalinvestigationwasconductedonanairshipofhull-finconfigurationforaerodynamicandaeroelasticcharacteristicsinthree-dimensionalviscousflows.Themathematicalmodelwasbuiltandthecorrespondingnumericalcodewasdevelopedforthefluid-structureinteractionproblem.ThegoverningequationsoftheviscousflowwithLL-LowReynoldsmodifiedmodelweresolvedbythestandardSIMPLEalgorithmbasedonthefinitevolumemethod.Afluid-structurecoupledmethodwasemployedtosolvethenonlinearaeroelasticityproblemfortheairship.Thecomputationalresultsoftheviscousflowareingoodagreementwiththeexperimentalmeasurements.Thesimulationontheaeroelasticbehavioroftheairshipinatrimmedflightrevealstheeffectofstructureflexibilityontheaerodynamicperformance.

简介：Thispapernumericallystudiestheinfluenceofthedownwardspoilerdeflectionontheboundarylayerflowofahigh-lifttwo-elementairfoilconsistingofadroopnose,amainwing,adownwarddeflectingspoilerandasingleslottedflap.Bothoftheboundarylayeroftheuppersurfaceofthespoilerandtheconfluentboundarylayeroftheuppersurfaceoftheflapbecomethicker,asthedownwardspoilerdeflectionincreases.Comparedtotheattachedflowattheangleofattackof10°,theflowoftheuppersurfaceofthespoilerbecomesseparatedattheangleofattackof16°whenthespoilerdeflectionislargeenough,whichcorrespondstotheboundarylayerflowreversalinvelocityprofiles.

简介：Forgettingthereal-timevisibleimagingofplasmaduringdischarge,wehavedevelopedanewdiagnosismethod-TTV(tangentialTV)forHL-2Atokamak.

简介：网络熵的一个定义被介绍，并且作为一个例子，在网络熵的值之间的关系嗯象全部的节点N一样的网络模型和connect概率p被讨论。理论结果和模拟基于ER网络的熵与对方一起在同意很好的网络结果。结果显示了那与熵以前报导了的另外的网络不同，这里定义的网络熵从有不同全部的节点的随机的网络或网络的不同类型有明显的差别。因此，这网络熵可以更好描绘复杂网络的人物。在定义的网络熵的帮助下，平衡网络的概念和非平衡网络的概念可以被介绍，这也被指出，并且描述偏差到一个复杂网络的平衡状态的量的大小被执行。

简介：Therearedifferentlayoutschemesfor330-500kVswitchyardwithoneandahalfbreakerconfiguration.However,asfarastheUHVswitch-yardsforpowerplantsconcerned,itisobviousthatsomelayoutschemestakeuptoomuchareaandsomeothersarenotcompatiblewiththegenerallayoutofpowerplants.Inordertoovercometheaboveproblems,anewalignedswitchyardlayoutscheme,i.e.,allcircuitbreakersanddisconnectingswitchesarealignedinonerowisdiscussedinthispaper.

简介：ThispaperprovidesasolutionforthedegeneratescaleforN-gonconfigurationinantiplaneelasticityusingtheconformalmappingfunction,andthelowerandupperboundsforthedegeneratescaleforN=3,4,5,6,7,8,10,20,30,40,50,100,150and200,areevaluated.

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简介：Fuelconsumptionhasalwaysbeenamatterofconcernforshipspropulsion.Inthisresearchweaimtodevelopcomputermodelsofseveralcontainershipcargostackingconfigurationsanddiscussanoptimalconfigurationataconstantfrontwindspeed.ThepaperpresentsthesimulationresultsbyusingANSYSCFXfora1:4scalePost-Panamax9000TEUcontainership.Theshipismodelledinacubicdomainthatcontainsunstructuredmeshwithdetails,insuchawaythatcandemonstratetheinfluenceofthecontainerconfigurationonwindforce.Alsothenumericalresultsareverifiedversuswindtunneltestdata.Anoptimalstackconfigurationledtoabout25%reductioninairresistance.Itisproposedthatinordertoreducethewinddragforceandconsequentlyreducethefuelconsumptionandpollutantemissions,emptyspacesbetweenthecargocontainersandunbalancedcargodistributionoverthedeckshouldbeinhibited.Also,itisadvisedtomakethecargodistributiononthemostforwardandaftwarddeckareasmorestreamlined.

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简介：PhasedArrayFeed(PAF)isasmalltwo-dimensionalphasedarrayantenna,playingaroleasthemulti-beamfeedforthereflectorantenna.TheprominentcapabilityoflargecontinuousField-of-View(FoV)coverageandfastsurveyspeedmakesPAFthepromisingfeedforradiotelescopes.Inthispaper,theeffectoffeedarrayofPAFonthegainfluctuationsoverFoVisanalyzedonasim-plifiedmodeloftheFive-hundred-meterSphericalApertureradioTelescope(FAST),includingillu-minationpatternedgetaper,elementspacing,elementarrangementandelementamount.Andthedifferencesbetweenrectangularandhexagonalarrayarrangementsarecompared.TherelationshipbetweentheFoVandarrayconfigurationareconcludedatlast.

简介：ＡＣＯＮＦＩＧＵＲＡＴＩＯＮＳＹＳＴＥＭＦＯＲＦＡＳＴＥＮＥＲＤＥＳＩＧＮ（ＡＮＡＰＰＲＯＡＣＨＴＯＷＡＲＤＳＣＯＭＰＵＴＥＲＡＩＤＥＤＣＯＮＣＥＰＴＵＡＬＤＥＳＩＧＮ）ＧｕａｎｇＺｈｏｎｇ；ＭｉｋｅＤｏｏｎｅｒＡＣＯＮＦＩＧＵＲＡＴＩＯＮＳＹＳＴＥ...

简介：Energystorageplaysanincreasinglyimportantroleinmodernpowersystems.Itcanaddvaluetopowersystemsinvariousaspects.Thispaperdiscussespossibleenergystoragesystem(ESS)applicationsandtheirbenefitstopowersystems.Thesystemconfiguration,converterdesign,andrecentfieldinstallationsofanLVconverterbasedESSarepresented.

简介：Inthispaper,theenergyformulasofActiveSoundAbsorption(ASA)inspacesoundfieldhavebeenderivedfromthebasicsoundwaveequation,andASAincludingtherelevantconditionsofmultipolesecon-dary-source,suchasmonopole,dipoleandtripole,etc.,hasbeendis-cussed.Onthebasisofthediscussion,ithaspointedoutthatdipolesec-ondary-configuration(DAA)isthesimplestattenuator.TheresultsoftheexperimentsdoneinanechoicchamberhaveshownthatDAAhaseffectiveperformanceswhichjustprovidethefundationandfeasibilityofpracticaluse.

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简介：WeinvestigatethelateralshiftofaTM-polarizedlightbeamreflectedfromOttoconfigurationundergrazingincidence.Itisfoundthatthelateralshiftisstronglydependentonthethicknessoftheair-gaplayer.Byemployingthepole-nullrepresentation,wedemonstratethatthelateralshiftiscloselyrelatedtothenullofthereflectionfunction.ThenumericalsimulationsforaGaussianbeamareperformedtodemonstratethevalidityofourtheoreticalanalysis.

简介：Self-configurationofphysicalcellidentity(PCI)isakeyfeatureforthelongtermevolutionadvanced(LTE-A)network.ThePCIisusedtoidentifythedifferentcellsinthesystem,becominganessentialcellconfigurationparameter.ConsideringtheuncoordinateddeploymentsoftheevolvedNodeB(eNodeB)andthelimitednumberofPCI,thePCIassignmentforcellswouldbequitecomplex.ThispaperpresentsandputsforwardagraphtheorybasedcentralizedPCIself-configurationscheme(GT-PCIS).ThePCIself-configurationproblemismappedtothewell-knownminimumspanningtree(MST)probleminordertooptimizethePCIreusedistanceanddecreasethemultiplexinginterferencethroughouttheentirenetwork.TheproposalprovidesagreedysearchtomakethelocallyoptimalselectionofPCIateachstage,andtoachieveaglobaloptimum.Todemonstratethealgorithmvalidity,performancesofGT-PCISandmanualconfigurationareevaluated.SimulationresultsshowthattheproposedGT-PCISoutperformsotherconfigurationalgorithmsevenundertheconditionofseverePCIdeficiency.

简介：Basedonthesteady-statesolutionoffinite-statebirthanddeathprocess,theprincipleoflineconfigurationforsharedmulti-channelsystemisanalyzed.Callcongestionratioequationandchannelutilizationratioequationarededuced,andvisualizeddataanalysisispresented.Theanaly-sisindicatesthat,calculatedwiththeproposedequations,theoverestimateforcallcongestionratioandchannelutilizationratiocanberectified,andtherebythecostofchannelscanbesavedby20%inasmallsystem.WithMATLABprogramming,lineconfigurationmethodsareprovided.Inordertogenerallyandintuitivelyshowthedynamicrunningofthesystem,andtoanalyze,promoteandimproveit,thesystemissimulatedusingM/M/n/n/mqueuingmodelandMonte-Carlomethod.Inaddition,thesimulationvalidatesthecorrectnessofthetheoreticalanalysisandoptimizingconfigurationmethod.