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.
简介:Thispaperintroducestwokindsofmethodswithhighaccuracyforfi-niteelementprobabilitycomputingmethod,bywhichthefunctionvalueononeorafewnodescanbecalculatedwithoutformingthetotalstiffnessmatrix.
简介:Thestochasticmodelsoftheusualjointsarefirstestablishedthroughintro-ducingtheconceptsof“clearancecharacteristicelement”and“clearancespace”.Afterde-rivingtheprobabilitydensityfunctionofthejointclearanceandmakingtheprobabilisticanalysisoftheresultedkinematicerrors,thesamplingformulasoftheindependentvaria-blesofthejointclearancesarefurtherdeduced.ThroughMonteCarlosimulation,thesta-tisticalcharacteristicsandfrequencyhistogramsofthekinematicerrorsarethenanalysedoncomputer.
简介:Effectivelyandaccuratelymodellingthespatialrelationoffracturesurfacesiscrucialinthedesignandconstructionoflargehydropowerdamshavingacomplexunderlyinggeology.However,fracturesurfacesarerandomlyformedandvarygreatlywithrespecttotheirspatialdistribution,whichmakestheconstructionofaccurate3-Dmodelschallenging.Inthisstudy,weuseanoptimalMonteCarlosimulationanddynamicconditioningtoconstructafracturenetworkmodel.WefoundtheoptimalMonteCarlosimulationtoeffectivelyreducetheerrorassociatedwiththeMonteCarlomethodandusedynamicconditioningtoensuretheconsistencyofthemodelwiththeactualdistributionoffracturesontheexcavationfacesandoutcrops.WeappliedthisnovelapproachtoahydropowerstationontheJinshajiangRiver,China.Thesimulationresultsmatchedtherealsampledvalueswell,confirmingthatthemodeliscapableofeffectivelyandaccuratelysimulatingthespatialrelationsinafracturenetwork.
简介:Tosharpentheimagingofstructures,itisvitaltodevelopaconvenientandefficientquantitativealgorithmoftheopticalcoherencetomography(OCT)sampling.InthispaperanewMonteCarlomodelissetupandhowlightpropagatesinbio-tissueisanalyzedinvirtueofmathematicsandphysicsequations.Therelations,inwhichlightintensityofClassIandClass2lightwithdifferentwavelengthschangeswiththeirpermeationdepth,andinwhichClassIlightintensity(signallightintensity)changeswiththeprobingdepth,andinwhichangularlyresolveddiffusereflectanceanddiffusetransmittancechangewiththeexitingangle,arestudied.TheresultsshowthatMonteCarlosimulationresultsareconsistentwiththetheorydata.