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简介：Inordertoconstructobjectiverelativelymappingrelationshipmodelbetweencustomerrequirementsandproducttechnicalcharacteristics,anovelapproachbasedoncustomersatisfactionsinformationdiggingfromcaseproductsandsatisfactioninformationofexperttechnicalcharacteristicswasputforwardinthispaper.Technicalcharacteristicsevaluationvalueswereexpressedbyroughnumber,andtechnicalcharacteristicstargetsequencewasdeterminedonthebasisofefficiency,costtypeandmiddletypeinthismethod.UseeachcalculatedsatisfactionsofcustomersandtechnicalcharacteristicsasinputandoutputelementstoconstructBPnetworkmodel.AndweuseMATLABsoftwaretosimulatethisBPnetworkmodelbasedonthecaseofelectricbicycles.

简介：ＡＭＵＬＴＩＰＬＥＳＴＲＵＣＴＵＲＥＲＥＣＯＮＳＴＲＵＣＴＩＯＮＡＬＧＯＲＩＴＨＭＢＡＳＥＤＯＮＷＩＲＥＦＲＡＭＥＭＯＤＥＬＤｕＪｉａｎｇｃｈｕａｎＰａｕｌＷ．Ｆ．ＰｏｏｎＡｂｓｔｒａｃｔＡ“ＬＡＧ＆ＲＬＣ”ｖｉｓｕａｌｉｚａｔｉｏｎａｌｇｏｒｉｔｈ...

简介：Motioncontrolcanbeconsideredasthesynergisticcollaborationofmechanicalandelectricalengineering,computerscienceandinformationtechnologytoapplyacontrolledforcetoachieveusefulmotioninfluidorsoiledelectromechanicalsystems.Withthedevelopmentofcomputer,electronics,andautomaticcontroltheory,motioncontrolcomestoanewstage.Greatapplicationsarebasedonthecharacteristics,stemmingfromadvantagesofelectronicsandmoderncontroltechnologyachievements,havingaverygoodloadmatchingproperty.Currently,microprocessor-basedcontrollersareinvariablyusedinmostapplicationsofdriveelectronics.Theobjectofthisworkistodesignapositioncontrolmechanismsystem,whichcanbeusedintestsectionoflowspeedwindtunnel.Systemloadspecificationsandperformancerequirementsaregiven.Acomprehensivestudyofmathematicalmodelingofthemechanismcomponentsisgiven.Procedureforselectionofvariouscomponentswithoptimumparametersisdiscussed.Afterselectionandcalculationofsystemparameterstomeettheperformancerequirements,aPIDcontrolmethodisadopted.

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简介：Analgorithmforcompensatingthevaryingsectioncontourwithintheextentofeachlayerthicknessisproposedtoimprovetherapidprototypingpart’sshapeandsizeprecision.

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简介：Imagedenoisingisthebasicproblemofimageprocessing.Quaternionwavelettransformisanewkindofmultiresolutionanalysistools.Imageviaquaternionwavelettransform,waveletcoefficientsbothinintrascaleandininterscalehavecertaincorrelations.First,accordingtothecorrelationofquaternionwaveletcoefficientsininterscale,non-Gaussiandistributionmodelisusedtomodelitscorrelations,andthecoefficientsaredividedintoimportantandunimportancecoefficients.Thenweusethenon-Gaussiandistributionmodeltomodeltheimportantcoefficientsanditsadjacentcoefficients,andutilizetheMAPmethodestimateoriginalimagewaveletcoefficientsfromnoisycoefficients,soastoachievethepurposeofdenoising.Experimentalresultsshowthatouralgorithmoutperformstheotherclassicalalgorithmsinpeaksignal-to-noiseratioandvisualquality.

简介：ThispaperpresentsanewmodelforedgeextractionofMRimages,basedoncurveevolutionandedgeflowtechniques.Atfirstthemodelforcurveevolutionisconstructed,whichautomaticallydetectboundaries,andchangeoftopologyintermsoftheedgeflowfields,andthenthenumericalapproximationofthemodelisintroduced,whichisbasedonsemi-implicitschemetospeeduptheproposedapproach.Finally,thenumericalimplementationispresentandtheexperimentalresultsshowthattheproposedmodelsuccessfullyextractstheedgecontours,regardlessoftheheavynoise.

简介：AimingatthegeometricalfeaturesofdifferentcontainmentrelationshipsinRapidPrototyping(RP),ageneralmethodofachievingtheRPlayer’scuspdistributionofthepositive,negativeandmixedtoleranceisproposedtomeetthepart’sdifferentapplications.TheprocedureisexecutedbyprojectingthecurrentandthenextsectionoftheCADmodelontoahorizontalplane,computingtheunionandtheintersectionofthesectionstogettheouterandtheinnerboundary,andthenblendingtheboundariesusingarotaryvectorthroughaproperinnerpointintheintersectiontoachievethecurrentlayer’sscanningcontour.Themethodcanrealizethelayer’scuspdistributionofthemixedtolerancewithunequalcuspheight,expandingtheconnotationofthemixedtolerance.

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简介：Aimingatachievingthehighaccuracy3Dmodelfromsliceimages,anewmodelreconstructionmethodusingsliceimagesisproposed.Wantingtoextracttheoutermostcontoursfromsliceimages,themethodoftheimprovedGVF-Snakemodelwithoptimizedforcefieldandraymethodisemployed.Andthen,the3Dmodelisreconstructedbycontourconnectionusingtheimprovedshortestdiagonalmethodandjudgmentfunctionofcontourfracture.Theresultsshowthattheaccuracyofreconstruction3Dmodelisimproved.

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简介：A3D-viewishelpfultoinstantlygraspwhatispresentedinadrawing.Thereexistavarietyofwaystopresentthesamepartwith3D-views.Tofacilitatethechoiceofanoptimumoneamongthem,theworkdividescompositesolidmodelsintothreecategories,soastoconveytheoriginalityofdesignconciselyandaccuratelybyusingtheleast'engineeringlanguage'.

简介：Natural,efficient,intelligent,andbarrier-freeHCI(Human-ComputerInterface)willbethemaindevelopingdirectionofthenewintelligentHCI.Buildinganintelligent,natural,harmoniousandhumanisticHCIhasbeentheprimarydevelopingtendencyofthenewHCI.'Selectonefrommany'isoneofthekeyquestionsinresearchinganddesigningHCIbasedongestures.Onthesinglechannelinteractiveconditionwhichisbasedon3Dgestureoperation,webuildainteractivemodelof'Selectonefrommany'.Combiningthismodelwith'Token'technologyandreciprocatingmovementfeature,wepresentandrealizeasimpleefficient'Selectonefrommany'algorithm,whichisusedinaconcreteSOR(Selection-Operation-Release)system.IntheSORsystem,werealizeareal-timeselection,trackingandinteractionofnaturalgestures.

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