简介：Accordingtothecharacteristicofthesensorinertia,thedynamicpredictiontoimprovethesystemdynamicprecisionispresentedinthispaper.Withtherecurrencecalculationoftimeconstantofthesensor,thesystemdynamicprecisionisgreatlyimproved.Theexampleusingthismethodisgiven.

简介：ManyInternet-GIShavebeenimplementedonthewebandtheyareincreasinglybecominganimportantpartofmultimediacartographythathasmuchmoreusersascomparedtotraditionalGISproductionmedia.InternetGIStechnologyhasprovidedtheGISdynamicinformationacquisitionwithtechnicalsupport.Also,thevisualizationtechnologyofelectronicmaphasprovidedtoolsforGISsymbolswithdynamiccharacteristics.OnthebasisofGISdynamicinformationacquisition,thedesignideaandimplementationmethodsofdynamicsymbolsindynamicGISarepresentedinthisarticle.

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简介：Althoughmanylinguistictheoriesandformalismshavebeendevelopedanddiscussedontheproblemofparsingalgorithminthepastdecades,theefficiencyandaccuracyofparsingarestillseriousproblemsinpracticalmachinetranslationsystems.Thispaperpresentsaparsingalgorithmwitdynamicruleselectionandtheexperimentalresults.Bydescribingthedesignandpracticeoftheinprovedalgorithm,thepaperdiscussesindetailthedesigningmethodforahighspeedandefficientparser.

简介：Negotiationandbargainingarethecommonmeansofsolvingeconomicandpoliticalprob-lems.Intheseproblems,playersoftenformcoalitionsforactivities.Intheenvironmentwithexternalities,theworthofacoalitiondependsnotonlyonitself,butalsoonthecoalitionstructureofotherplayers.Thispaperstudiesdynamicbargaininggameswithexternalitiesandanalyzestheeffectofexternalityonthepayoffsofplayers.BasedontheRubinstein'stwo-personalternating-offerbargaininggame,theauthorsstudyatwo-persondynamicgamewithexternalitiesandextendittothecaseofnplayers.Theresearchshowsthatexternalityaffectstheresultsofthisbargaininggame,andcoalitionstructuresaffectthepayoffsofplayers.Playersinthisbargaininggamecanalwaysformgrandcoali-tionifanallocationiseffective,butsomecoalitionstructuresmaynotbeformedundersomecertainconditions.

简介：Thedynamicsformulti-linkspatialflexiblemanipulatorarmsisinvestigated.ThesystemconsideredhereisanN-flexible-linkmanipulatordrivenbyNDC-motorsthroughNrevoluteflexiblejoints.Theflexibilityofeachflexiblejointismodeledasalinearlyelastictorsionalspring,andthemassofthejointisalsoconsidered.Fortheflexibilityofthelink,allofthestretchingdeformation,bendingdeformationandthetorsionaldeformationareincluded.ThecompletegoverningequationsofmotionofthesystemarederivedviatheLagrangeequations.Thenonlineardescriptionofthedeformationfieldoftheflexiblelinkisadoptedinthedynamicmodeling,andthusthedynamicstiffeningeffectsarecaptured.Basedonthismodel,ageneral-purposesoftwarepackagefordynamicsimulationofmulti-linkspatialflexiblemanipulatorarmsisdeveloped.Severalillustrativeexamplesaregiventovalidatethealgorithmpresentedinthispaperandtoindicatethatnotonlydynamicstiffeningeffectsbutalsotheflexibilityofthestructurehassignificantinfluenceonthedynamicperformanceofthemanipulator.

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简介：Atwospeciesdiscretecommensalismsystemisproposedandstudied.BytheJury'sconditionsforthestabilityofsecondorderdiscretesystem,thelocalstabilitypropertyofpositiveequilibriumisinvestigated;afterthat,sufficientconditionswhichensuretheglobalasymptoticstabilityoftheinteriorequilibriumareobtained.Anexampletogetherwithitsnumericsimulationisgiventoillustratethefeasibilityofthemainresult.

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简介：Acertainnumberofconsiderationsshouldbetakenintoaccountinthedynamiccontrolofrobotmanipulatorsashighlycomplexnon-linearsystems.Inthisarticle,weprovideadetailedpresentationofthemechanicalandelectricalimpli-cationsofrobotsequippedwithDCmotoractuators.Thismodeltakesintoaccountallnon-linearaspectsofthesystem.Then,wedevelopcomputationalalgorithmsforoptimalcontrolbasedondynamicprogramming.Therobot’strajectorymustbepredefined,butperformancecriteriaandconstraintsapplyingtothesystemarenotlimitedandwemayadaptthemfreelytotherobotandthetaskbeingstudied.Asanexample,amanipulatorarmwith3degreesoffreedomisanalyzed.

简介：Thediscretizationsizeislimitedbythesamplingtheorem,andthelimitisonehalfofthewavelengthofthehighestfrequencyoftheproblem.However,onehalfofthewavelengthisanidealvalue.Ingeneral,thediscretizationsizethatcanensuretheaccuracyofthesimulationismuchsmallerthanthisvalueinthetraditionalfiniteelementmethod.Thepossiblereasonofthisphenomenonisanalyzedinthispaper,andanefficientmethodisgiventoimprovethesimulationaccuracy.

简介：-Inthispaper,mathematicalmodelsanddynamicanalysesforbothSDOFandMDOFstructuresisolatedwithdampersareestablishedandperformed,andacomprehensivecomputationmethodisprovided.TheshockabsorbingeffectisillustratedthroughanexampleofatwoDOFdamper-isolatedsystemexcitedbysinusoidalwavesandactualgroundaccelerationinputrecordedinearthquakes.Itisshownthatmostoftheresponsesofthestructurewithdampersreducegreatlyneartheresonantzone,butaccelerationisenlargedinthelowerorhigherfrequencyzone;amongvariousparameters,theinfluenceoffrictionalcoefficientnisthemostsignificant,thatofdampingratioofthedampers,isthesecond,andthatofstiffnesscoefficientofthedampersk,istheslightest.

简介：Inthispaperthegeneraldynamicalequationsweregivenformultibodiesmanipulator.Thesystemisatopologictreestructureconsistingofarbitrarynumberofrigidbodies.Thehingesallowtherotationaland/ortranlationalmotion.InconsiderationofinfluenceoffrictionthedynamicequationsareestablishedbymeansofNewton-Euler’smethod.Further,theequationsareseparatedbywayofconstructingthedistributionmatricesandagroupofforceandmotionequationsareobtained.

简介：我们调查metamaterial系统的动态特征，例如在散cloaking系统，并且延长cloaking系统的工作频率范围的superlens，理想的cloaking系统上的诱发性限制，松驰进程和必要元素的时间的连贯获得。我们的学习的关键点是metamaterials的物理散性质，它内在地是著名的是强烈散。与物理分散，新物理图画能为在metamaterial内宣传的波浪被获得，例如这个组在superlens和外套，真实metamaterial系统上的诱发性限制，和为设计优化的必要元素内的波浪的延迟的时间。因此，我们相信metamaterials的动态学习将是为进一步的研究的一个重要方向。所有理论推导和结论被强大的有限差别的时间域模拟表明。

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简介：ＡＤＹＮＡＭＩＣＥＣＧＭＯＮＩＴＯＲＩＮＧＡＮＤＲＥＣＯＲＤＩＮＧＳＹＳＴＥＭＬｉｊｕｎＴｉａｎ，ＺｏｎｇｚｈａｎＤｕ，ＤｏｎｇｑｉｎｇＷａｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＥｌｅｃｔｒｉｃａｌＰｏｗｅｒＳｈａｎｄｏｎｇＰｏｌｙｔｅｃｈｎｉｃＵｎｉｖｅｒ...

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简介：OneofthemainfeaturesofacommunicativeEnglishclassisactivities,organizedbytheteacherandconductedbystudentsperformingcertainfunctionsandinvolvingdifferenttopics.Theuseofactivitieshasgainedmuchattention.However,thelinkbetweenactivitiesseemstohavebeenignored.Thispaperisanattempttoexploretheroleofcohesivenessbetweenactivitiesincommunicativeteaching.Thecohesivenesscanbeeithermechanicalordynamic.ThekeyisthatdynamiccohesivenesscontributestotheatmosphereandeffectivenessofcommunicativeEnglishclassroomteaching.

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简介：WestudythedynamiccavitymethodfordilutekineticIsingmodelswithsynchronousupdaterules.FortheparallelupdaterulewefindforfullyasymmetricmodelsthatthedynamiccavityequationsreducetoaMarkoviandynamicsofthe(time-dependent)marginalprobabilities.Fortherandomsequentialupdaterule,alsoaninstantiationofasynchronousupdaterule,wefindontheotherhandthatthedynamiccavityequationsdonotreducetoaMarkoviandynamics,unlessanadditionalassumptionoftimefactorizationisintroduced.ForsymmetricmodelsweshowthatafixedpointofordinaryBeliefpropagationisalsoafixedpointofthedynamiccavityequationsinthetimefactorizedapproximation.Forclarity,theconclusionsofthepaperareformulatedasthreelemmas.