简介：Thispaperanalyzesthedynamicsofnonlinearmultivariatetimeseriesmodelsthatisrepresentedbygeneralizedimpulseresponsefunctionsandasymmetricfunctions.Weillustratethemeasuresofshockpersistencesandasymmetriceffectsofshocksderivedfromthegeneralizedimpulseresponsefunctionsandasymmetricfunctioninbivariatesmoothtransitionregressionmodels.TheempiricalworkinvestigatesabivariatesmoothtransitionmodelofUSGDPandtheunemploymentrate.

简介：Theoptimizationproblemisconsideredinwhichtheobjectivefunctionispseudolinear(bothpseudoconvexandpseudoconcave)andtheconstraintsarelinear.Thegeneralexpressionfortheoptimalsolutionstotheproblemisderivedwiththerepresentationtheoremofpolyhedralsets,andtheuniquenessconditionoftheoptimalsolutionandthecomputationalprocedurestodeterminealloptimalsolutions(iftheuniquenessconditionisnotsatisfied)areprovided.Finally,anillustrativeexampleisalsogiven.

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简介：Themethodofthephaseplaneisemploiedtoinvestigatethesolitaryandperiodictravelingwavesforaclassofnonlineardispersivepartialdifferentialequations.Byusingthebifurcationtheoryofdynamicalsystemstodoqualitativeanalysis,allpossiblephaseportraitsintheparametricspaceforthetravelingwavesystemsareobtained.Itcanbeshownthattheexistenceofasingularstraightlineinthetravelingwavesystemisthereasonwhysmoothsolitarywavesolutionsconvergetosolitarycuspwavesolutionwhenparametersarevaried.Thedifferentparameterconditionsfortheexistenceofsolitaryandperiodicwavesolutionsofdifferentkindsarerigorouslydetermined.

简介：Inthispaper,accordingtotheformoftheasymptoticsolutionofpapers[1,2],theasymptoticmethodisextendedtothefollowingaclassofmoregeneralstrongnonlinearvibrationsystems(?)+g(x,(?))=(?)f(x,(?))(0.1)wheregandfarethenonlinearanalytical-functionsofxandx,and(?)>0isasmallparameter.Weassumethatthederivativesystemcorrespondingto(?)=0hasperiodicsolution.Therecurrenceequationsoftheasymptoticsolutionforthesystem(0.1)arededucedinthispaper,andtheyareappliedtopracticalexamples.

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简介：为非线性的系统的诊断计划基于neurofuzzy联网的一个联机差错在这篇论文被建议。计划包含二个阶段。在第一个阶段，非线性的系统被一个neurofuzzy网络接近，它从在系统的正常操作期间获得的数据脱机被训练。在第二个阶段，剩余从这个网络在网上被产生并且被在网上训练的另一个neurofuzzy网络建模。模糊规则从这个网络被提取，并且与在在不同有缺点的操作，差错从被诊断下面获得的差错数据库的那些相比。建议聪明的差错计划的性能在不同有缺点的条件下面用一个二坦克的水水平控制系统被说明。

简介：ThispaperpresentsaunifieddiagnosticmethodforexponentialnonlinearmodelswithrandomeffectsbaseduponthejointlikelihoodgivenbyRobinsonin1991.Theauthorsshowthatthecasedeletionmodelisequivalenttomeanshiftoutliermodel.Fromthispointofview,severaldiagnosticmeasures,suchasCookdistance,scorestatisticsarederived.ThelocalinfluencemeasureofCookisalsopresented.Numericalexampleillustratesthatourmethodisavailable.

简介：ThispaperdiscussesthenonlinearstabilitybehaviourofdistortedplaneCouetteflowto2-dimensionaldisturbances,andcomparesitwiththatofdistortedplanePoiseuilleflow.TheresultsshowthatplaneCouetteflowismoreunstablethanplanePoiseuilleflowtofinite-amplitudedisturbances.

简介：在这篇论文，一个新非线性的自治系统由Chlouverakis介绍了；Sprott进一步被学习，到现在很富有；复杂非线性的动态行为。一些基本动态性质是学习任何一个经分解或数字地，印射例如Poincaré，Lyapunov代表；Lyapunov尺寸。基于这流动，新almost-Hamilton有很高的Lyapunov尺寸的混乱系统被构造；调查。二个新非线性的自治系统能被增加或省略一些经常的系数变成对方。

简介：Basedonphase-planeorbitanalysis,themathematicalmodelofpiecewise-smoothsystemsofmulti-degree-of-freedomunderthemodecoordinateisestablished.Approximateanalyticalsolutionunderthephysicalcoordinateofmulti-degree-of-freedomself-excitedvibrationinducedbydryfrictionofpiecewise-smoothnonlinearsystemsisderivedbymeansofaveragemethod,theresultsofwhichagreewiththoseofthenumericalsolution.Aneffectiveandreliableanalyticalmethodinvestigatingpiecewise-smoothnonlinearsystemsofmulti-degree-of-freedomhasbeengiven.Furthermore,thispaperqualitativelyanalysesthecurvesaboutstationaryamplitudeversusrubbingvelocityofhandsandversusnaturalfrequencyofhands,andaboutangularfrequencyversusrubbingvelocityofhands.Theresultsprovideatheoreticalbasisforidentifyingparametersofthesystemandtheanalysisofsteadyregion.

简介：在这篇文章，作者在二个独立变量建立一些新非线性的差别不平等，它概括一些存在结果并且能在差别方程的某些类的解决方案的质以及量的性质的学习被用作方便工具。

简介：ＰＩＥＣＥＷＩＳＥＣＯＮＴＩＮＵＯＵＳＳＯＬＵＴＩＯＮＳＯＦＮＯＮＬＩＮＥＡＲＥＬＬＩＰＴＩＣＥＱＵＡＴＩＯＮＳＩＮＴＨＥＰＬＡＮＥＤａｉＤａｏＱｉｎｇ（戴道清）（Ｄｅｐｔｏｆｍａｔｈ．，ＺｈｏｎｇｓｈａｎＵｎｉｖｅｒｓｉｔｙ，Ｇｕａｎｇｚｈｏｕ５１...

简介：Inthispaper,weusemonotoneiterativetechniquestoshowtheexistenceofmaximalorminimalsolutionsofsomeellipticPDEswithnonlineardiscontinuousterms.AsthenumericalanalysisofthisPDEsisconcerned,weprovetheconvergenceofdiscreteextremalsolutions.

简介：BasedonexactGreenstrainofspatialcurvedbeam,thenonlinearstrain-displacementrelationforplanecurvedbeamwithvaryingcurvatureisderived.Insteadofusingthepreviousstraightbeamelements,curvedbeamelementsareusedtoapproximatethecurvedbeamwithvaryingcurvature.Basedonvirtualworkprinciple,rigid-flexiblecouplingdynamicequationsareobtained.Physicalexperimentswerecarriedouttocapturethelargeoverallmotionandthestrainofcurvedbeamtoverifythepresentrigid-flexiblecouplingformulationforcurvedbeambasedoncurvedbeamelement.Numericalresultsobtainedfromsimulationswerecomparedwiththoseresultsfromthephysicalexperiments.Inordertoillustratetheeffectivenessofthecurvedbeamelementmethodology,thesimulationresultsofpresentcurvedbeamelementsarecomparedwiththoseobtainedbypreviousstraightbeamelements.Thedynamicbehaviorofaslider-crankmechanismwithaninitiallycurvedelasticconnectingrodisinvestigated.Theadvantageofemployinggeneralized-αmethodispointedoutandthespecialnonlineardynamiccharacteristicsofthecurvedbeamareconcluded.

简介：APRP-typesmoothingconjugategradientmethodforsolvinglargescalenonlinearcomplementarityproblems(NCP(F))isproposed.Ateachiteration,twoArmijolinesearchesareperformed,whichguaranteesthepositivepropertyofthesmoothingparameterandminimizesthemeritfunctionformedbyFischer-Burmeisterfunction,respectively.GlobalconvergenceisstudiedwhenF:R~n→R~nisacontinuouslydifferentiableP_0+R_0function.Numericalresultsshowthatthemethodisefficient.

简介：Anonlineardynamicanalysismodelisestabilishedonthebasisof"lumpedmass"approach,whichtakestheinfluenceofthefluidflowwithinthepipeintoconsideration.Numericalresultsarecomparedwiththepublishedworks,andtheeffectsofinternalfluidflow,internalpressure,dyanmicsaswellasthenonlinearcharacteristicsonthebehaviorofflexiblerisersarediscussed.Fromthiswork,someusefulconclusionsaredrawn.

简介：为有非线性的不明确的联网的控制系统(NCS)的一个类的柔韧的稳定的问题令人满意一个给定的扇区条件在这篇论文被调查。由在传播与参数不确定性，导致网络的延期，非线性和数据包退学学生介绍NCS的一个新模型，一个严格的线性矩阵不平等(LMI)标准基于Lyapunov稳定性理论为不明确的非线性的NCS的柔韧的稳定被建议。最大的许可的转移间隔(MATI)能被解决相应LMI的可行性问题导出。一些数字例子被提供表明建议算法的适用性。

简介：Thispaperisconcernedwiththeglobalboundednessproblemforaclassofstochasticnonlinearsystemswithmatchedconditions.Theuncertaintiesinthesystemsareduetoparametervariationsandexternalstochasticdisturbance.Onlythematchedconditionsandthepossibleboundoftheuncertaintiesaredemanded.BasedonthestochasticLyapunovstabilitytheory,anexplicitcontrollerisconstructedinthegradientdirection,whichrendersresponsesoftheclosed-loopsystemsbegloballyboundedinprobability.Whenthesystemsdegradetolinearsystems,thecontrollerbecomeslinear.Illustrativeexamplesaregiventoshowtheeffectivenessoftheproposedmethod.

简介：这份报纸从三个方面为非线性的Hamiltonian系统涉及有限元素方法：精力，symplicity，和全球错误的保存。学习有限元素方法的symplecticity，我们使用所有分析方法而非通常使用的代数学的方法。我们在节点t证明集中的顺序最佳[n]在中间长的时间并且表明高精确性的symplecticity。证明强烈取决于superconvergence分析。数字实验证明建议方法能保存精力很好并且能也在长时间使全球轨道错误小。[从作者抽象]