简介:Reverseengineeringdealingwithimagesistraditionallybasedonimageprocessingandcontourrecognition.Anewmethodispresentedbasedonthecombinationofsectionalslicingwithimagemosaic.Sectionalcontoursofthetargetobjectaregeneratedbycolorfulliquidorlaserscanning,theseimagesfromdifferentviewsarefusedintoasetofcompletecross-sectionalimages,therebythewholepracticalmodelisreconstructedin3Dspace.
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简介:AnewmethodforrecognizingChinesecharactersisproposed.Itisbasedontheso-calledfeaturepointsofChinesecharacters.Thefeaturepointsweuseincludethoseonthestrokeofacharacter.i.e.,endpoints.turningpoints,forkpointsandcrosspoints.andthekeypointsonthebackgroundofcharacter.ThismethoddiffersfromthepreviousonesforitcombinesthefeaturepointsonstrokewiththoseonbackgroundanditusesfeaturepointstorecognizeChinesecharactersdirectly.AChinesecharacterrecognitionsystembasedtotop-downdynamicalmatchingoffeaturepointisdeveloped.Thesystemcanrecognizenotonly6763printedsampleSongfontChinesecharactersofsize5.6×5.6mm^2withhighrecognitionrate,butalsothegeneralprintedbooks,magazinesanddocumentswithasatisfactoryrecognitionrateandspeed.
简介:Ajobshopschedulingproblemwithacombinationprocessingincomplexproductionenvironmentisproposed.Basedonthedefiningof'non-elasticcombinationprocessingrelativity'and'virtualprocess',theproblemcanbesimplifiedandtransformedtoatraditionalone.Onthebasisofthedispatchingrulesselectengineandconsideredfactorsofcomplexproductionenvironment,aheuristicmethodisdesigned.ThealgorithmhasbeenappliedtoamouldenterpriseinShenzhenforhalfayear.Thepracticeshowedthatbyusingthemethodsuggestedthenumberofdelayedorderswasdecreasedabout20%andtheproductivitywasincreasedby10to20%.
简介:Inordertoconstructobjectiverelativelymappingrelationshipmodelbetweencustomerrequirementsandproducttechnicalcharacteristics,anovelapproachbasedoncustomersatisfactionsinformationdiggingfromcaseproductsandsatisfactioninformationofexperttechnicalcharacteristicswasputforwardinthispaper.Technicalcharacteristicsevaluationvalueswereexpressedbyroughnumber,andtechnicalcharacteristicstargetsequencewasdeterminedonthebasisofefficiency,costtypeandmiddletypeinthismethod.UseeachcalculatedsatisfactionsofcustomersandtechnicalcharacteristicsasinputandoutputelementstoconstructBPnetworkmodel.AndweuseMATLABsoftwaretosimulatethisBPnetworkmodelbasedonthecaseofelectricbicycles.
简介:Thispaperproposesanewcellintuitionsimulationmethodwhichisacombinationofintuitivesimulationcalculationmethodandtheoperationofbinaryimage,andapplieditintheinnovationofthegraphicdesignprocess.Firstofall,westudyhowtoexpressavarietyofgraphics,andestablishthedefinitionofcellintuitivemodel,workoutthecellintuitiveoperationprocessandmanynewcellularoperatorssuchasavarietyofmatrixblockscrossoveroperator,avarietyofmatrixblocksmutationoperator,matrixblocksreplaceoperator,matrixblockscompressionoperator,matrixblocksextensionoperator.Bychoosingtwoormorecellsandselectingtheartificialselectionorfitnessselection,wecansetupandvisualizethedesignandpickthebestdesignresults.Finally,validationismadeonthisalgorithmbyanexample,andainnovationgraphicisalsorepresented.
简介:Streamprocessingapplicationscontinuouslyprocesslargeamountsofonlinestreamingdatainrealtimeornearrealtime.Theyhavestrictlatencyconstraints.However,thecontinuousprocessingmakesthemvulnerabletoanyfailures,andtherecoveriesmayslowdowntheentireprocessingpipelineandbreaklatencyconstraints.Theupstreambackupschemeisoneofthemostwidelyappliedfault-tolerantschemesforstreamprocessingsystems.Itintroducescomplexbackupdependenciestotasks,whichincreasesthedifficultyofcontrollingrecoverylatencies.Moreover,whendependenttasksarelocatedonthesameprocessor,theyfailatthesametimeinprocessor-levelfailures,bringingextrarecoverylatenciesthatincreasetheimpactsoffailures.Thispaperstudiestherelationshipbetweenthetaskallocationandtherecoverylatencyofastreamprocessingapplication.Wepresentacorrelatedfailureeffectmodeltodescribetherecoverylatencyofastreamtopologyinprocessor-levelfailuresunderataskallocationplan.Weintroducearecovery-latencyawaretaskallocationproblem(RTAP)thatseekstaskallocationplansforstreamtopologiesthatwillachieveguaranteedrecoverylatencies.WediscussthedifferencebetweenRTAPandclassictaskallocationproblemsandpresentaheuristicalgorithmwithacomputationalcomplexityofO(nlog2n)tosolvetheproblem.Extensiveexperimentswereconductedtoverifythecorrectnessandeffectivenessofourapproach.Itimprovestheresourceusageby15%-20%onaverage.
简介:一个简单方法被建议为一个系列串联控制系统设计P/PI控制器为不稳定首先订正时间延期(FOPTD)系统。在这份报纸,为与稳定/不稳定的FOPTD系统在系列串联的不稳定的FOPTD系统的控制器设计被考虑。建议方法基于等同s和s的相应力量的系数2为一个伺服问题在靠近环的转移的分母的到乘那些的1和2的分子工作。开的环系统由与一个稳定/不稳定的FOPTD系统在系列串联的一个不稳定的FOPTD系统组成。仅仅二调节参数(1和2)为控制器的设计被要求。靠近环的表演为伺服和规章的问题被评估,表演被发现比很好确定的合成方法的好。为在模型参数的无常的坚韧性被学习并且由合成方法与控制器的相比设计了。
简介:Acompleteanddetailmethodisdescribedtogetdigitallyreconstructedradiographs(DRRs).CastingraystotraverseCTimages,computingCTvaluesofresamplepointsbyinterpolation,thenconvertingCTvaluetoitsattenuationcoefficientbyusingsimplifiedsegmentfunction.Finally,DRRsenhancementismadetogetthebetterdisplayofregionofinterest(ROI),andanewwayisadoptedtoadjustthecustomizationcoefficient.TheexperimentalresultsshowthattheproposedmethodiseffectiveingeneratingthesatisfiedDRRs.
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简介:SinkiangMuqammusic,whichisacombinationofsong,dance,music,folk-customandliterature,isinthelistofWorldIntangibleCulturalHeritage.ItisdistributedindifferentregionsinSinkiang.Becauseofthedifferentinheritanceregionsaswellasthedifferentinfluenceofhistoryandculture,thereformedMuqammusicofdifferentregionstyle,furtherpresenteddifferentartisticstyle.ThisarticlepresentsamethodtointuitivelyshowtheinheritancedistributionoffourkindsofMuqammusicinSinkiangbasedonscalablevectorgraphicstechnology,itprovidesmethodsandtoolsofvisualizationresearchontheprotectionandinheritanceofMuqammusic.
简介:Thispaperpresentsafactoringalgorithmforcomputingsource-to-Kterminal(SKT)reliability,theprobabilitythatasourceacansendmessagetoaspcifiedsetofterminalsK,inacyclicdirectednetworks(AD-networks)inwhichbothnodesandedgescanfail,BasedonPivotaldecompositiontheorem,anewformulaisdevivedforcomputingtheSKTreliabilityofAD-networks.ByestablishingatopologicalpropertyofAD-networks,itisshownthattheSKTreliabilityofAD-networkscanbecomputedbyrecursivelyapplyingthisformula,TwonewReliabilityPreservingReductionsarealsointroduced.Therecursiontreegeneratedbythepresentedalgorithmhasatmost2^(|V|-|K|-|C|leafnodes,where|V|and|K|arenodessatisfyingsomespecifiedconditions.ThecomputationcomplexityofthenewalgorithmisO(|E|·|V|·2^(|V|-|K|-|C|)intheworstcasewhere|E|isthenumberofedges.Forsource-to-all-terminal(SAT)reliability,itscomputationcomplexityisO(|E|).ComparisonofthenewalgorithmwiththeexistingonesindicatesthatthenewalgorithmismoreefficientforcomputingtheSKTreliabilityofAD-networks.