简介：InthepaperthebasicelementsofCADsystemsfromsoftwarepointofviewaredis-cussed.ThecreationandnextthemodificationofCADsystemsneedsspecializedsoftwaretools.InthepapertheideacomputerAidedSoftwareEngineering(CASE)forCADsystemsproductionandpracti-calsoftwarerealizationofsuchasoftwaretoolisconsidered.ThemainelementofthistoolisspecialprogramprovidedforconvenientstorageandmodificationofCADsourceprogram.Inthepaperthesimpleexamplesarepresentedanddiscussed.

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简介：Aschemeofverycompactstoreforlarge-scaleprimelistisgivenandtwoalgorithmsforrapidgeneratingthelistareprovided.

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简介：在航空测量，主要因素是地面波动。然而，大多数为航空测量设计使用的外部航空测量软件不考虑地面波动影响。因此，设计结果有比较randomicity和“差距”被期望。一个航空测量设计系统被与DEM数据分析地面波动影响到设计结果开发以便前面的重叠和方面重叠能根据块地面波动被认为正当遇见说明或标准。这个系统设计的数据与真实的飞数据相比。结果证明使用DEM在航空测量设计帮助能保证设计结果更好适合真实地面。

简介：Asystematicalsimulationhasbeencarriedoutontheindentationcreeptestonparticle-reinforcedcomposites.Thedeformation,failuremechanismsandlifeareanalyzedbythreereasonablemodels.Thefollowingfivefactorshavebeenconsideredsimultaneously:creeppropertyoftheparticle,creeppropertyofthematrix,theshapeoftheparticle,thevolumefractionoftheparticleandthesize(relativesizetotheparticle)oftheindentationindenter.Forallthecases,thepowerlawrespectingtotheappliedstresscanbeusedtomodelthesteadyindentationcreepdepthrateoftheindenter,andthedetailexpressionshavebeenpresented.Thecomputersimulationprecisionisanalyzedbythetwo-phasemodelandthethree-phasemodel.Twoplacesofthestressconcentrationarefoundinthecomposites.Oneisaheadoftheindentationindenter,wherethehighstressstateisdeducedbytheedgeoftheindenterandwilldecreaserapidlyneartoasteadyvaluewiththecreeptime.Theotheroneisattheinterface,wherethehighstressstateisdeducedbythemisfitofmaterialpropertiesbetweentheparticlesandmatrix.Ithasbeenfoundthatthecreepdissipationenergydensityotherthanastressparametercanbeusedtobethecriteriontomodelthedebondingoftheinterfaces.Withthecriterionofthecriticalcreepdissipationenergydensity,apowerlawtotheappliedstresswithnegativeexponentcanbeusedtomodelthefailurelifededucedbythedebondingofinterfaces.Theinfluencesoftheshapeoftheparticlesandthematchingofcreeppropertiesofparticleandmatrixcanbediscussedforthefailure.Withacrackmodel,thefurthergrowthofinterfacecrackisanalyzed,andsomeimportantexperimentalphenomenacanbepredicted.Thefailuremechanismwhichtheparticlewillbepunchedintomatrixhasbeenalsodiscussed.Thecriticaldiflerencesbetweenthecreeppropertiesoftheparticlesandmatrixhavebeencalculated,afteraparameterhasbeendefined.Intheviewofcompetitionoffailure

简介：TofindouttheprotectivepolypeptideepitopesofHCVHVR1,theantigenieityofthesyntheticpepfidewaspredictedbycomputermodelingandverifiedbyELISAandlymphocytetransformationtest.Itwasfoundthattheoutcomeofthecomputermodelingwasinaccordwiththeexperimentalresults.Themethodbyusingcomputermodelingwouldbeaeconomicapproachbywhichtheprotectivepeptidescouldbeidentifiedquickly.

简介：Anewkindofcontrolsystemforkeyholeplasmaarcwelding(K-PAW)wasdevelopedbasedonthecomputerandtheGraphicsLanguage-LabVIEW.Itcansetandoutputtherequiredcurrentwaveformswithdesireddecreasingslopessothatthecorresponding'openingandclosing'ofkeyholecanoccurperiodically.Withthiscontrolstrategyofweldingcurrentwaveforms,theworkpieceisfullypenetratedwhilenoburn-throughoccurs.Keyholeplasmaarcweldingexperimentswereconductedtoverifythestabilityandreliabilityofthedevelopedsystem.

简介：ＲＥＳＥＡＲＣＨＯＮＭＯＤＥＬＩＮＧＯＦＨＵＭＡＮＢＯＤＹＩＮＴＨＲＥＥ－ＤＩＭＥＮＳＩＯＮＡＬＣＯＭＰＵＴＥＲＡＮＩＭＡＴＩＯＮＳｏｎｇＳｈｕｎｌｉｎ；ＺｈａｎＹｏｎｇｚｈａｏ；ＸｕｅＡｎｒｏｎｇ；ＤｉｎｇＹｕｅｍｅｉＲＥＳＥＡＲＣＨＯＮＭＯＤＥＬ...

简介：Anadaptivestatisticmodelformobilecommunicationchannelisstudiedandsimulatedinthispaper.Accordingtothemodelparameters,anerrorsequencedescribingthelongbursterrorcharacteristicsofthemobilecommunicationchannelisgeneratedonacomputer.Atestmethodusingthresholdtechniqueispresentedtoverifytheaccuracyoftheadaptivechannelmodel.

简介：AIM:Tomeasureopticnervesheathdiameters(ONSD)indifferentlocationsbycomputertomography(CT)andtorecommendthebestlocationforcaseswhenONSDisusedforintracranialpressuremonitoring.·METHODS:Inaprospectivecohortstudy,CTdataof300healthyadultswereanalyzed(600eyes).Inallcases,theCTinvestigationwasperformedattheEmergencyDepartmentbecauseofthevariousconditionsthatprovednottobeconnectedwithophthalmologicalorneurologicalpathology.TheONSDweremeasuredat3mmand8mmdistancefromtheglobe,and3mmfromtheanterioropeningoftheopticcanal.Thecorrelationanalysiswasperformedwithgender,age,andethnicbackground.·RESULTS:Theright/leftONSDare4.94±1.51/5.17±1.34mmat3mm,4.35±0.76/4.45±0.62mmat8mmfromtheglobe,and3.55±0.82/3.65±0.7mmat3mmfromtheopticcanal.Nosignificantdifferencescorrelatedwithgenderofthepatients,theirage,andethnicbackgroundwerefound.·CONCLUSION:Inhealthypersons,theONSDvariesfrom5.17±1.34mmto3.55±0.82mmindifferentlocationswithintheintraorbitalspace.Themoststableresultswithlesserstandarddeviationcanbeobtainedifitismeasured8-10mmfromtheglobe.

简介：Thispaperpresentsawaytomeasurethetruetemperatureoftheelectronicdeviceswithoutdisturbingtheirnormaloperatingconditions,whichinvolvedwithestimatingtargetemissivity,backgroundtemperaturecorrectlyandchoosinginfraredtransparentmaterialanditstransmissionestimation.Thetemperaturedistributionsofthemainboardinpersonalcomputerweremeasuredbythemethodpresentedherewithinfraredthermographyinseveraldifferentrunningconditions.Themeasurementerrorsandtheirpossibleremediesarealsodiscussed.

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