简介：Inperiodiccellularstructures,novelpatterntransformationsaretriggeredbyareversibleelasticinstabilityundertheaxialcompression.Basedonthedeformation-triggerednewpattern,periodiccellularstructurescanachievespecialmechanicalproperties.Inthispaper,thedesignedarchitecturematerialswhichincludeelastomermatrixescontainingemptyholesorfilledholeswithhydrogelmaterialaremodeledandsimulatedtoinvestigatethemechanicalpropertyoftheperiodicmaterials.Byanalyzingtherelationshipbetweennominalstressandnominalstrainofperiodicmaterial,andthecorrespondingdeformedpatterns,theinfluenceofgeometryandshapesoftheholesonthemechanicalpropertyofarchitecturematerialisstudiedinmoredetails.Wehopethisstudycanprovidefutureperspectivesforthedeformation-triggeredperiodicstructures.

简介：Fieldcomputation,anemergingcomputationtechnique,hasinspiredpassionofintelligencescienceresearch.Anovelfieldcomputationmodelbasedonthemagneticfieldtheoryisconstructed.Theproposedmagneticfieldcomputation(MFC)modelconsistsofafieldsimulator,anon-derivativeoptimizationalgorithmandanauxiliarydataprocessingunit.ThemathematicalmodelisdeducedandprovedthattheMFCmodelisequivalenttoaquadraticdiscriminantfunction.Furthermore,thefiniteelementprototypeisderived,andthesimulatorisdeveloped,combiningwithparticleswarmoptimizerforthefieldconfiguration.Twobenchmarkclassificationexperimentsarestudiedinthenumericalexperiment,andonenotableadvantageisdemonstratedthatlesstrainingsamplesarerequiredandabettergeneralizationcanbeachieved.

简介：基于地面的云分类由于在在不同大气的条件下面的云的外观的极端变化是挑战性的。质地分类技术最近被介绍了处理这个问题。一个新奇质地描述符，突出的本地二进制模式(SLBP)，为基于地面的云分类被建议。SLBP利用最经常发生的模式(突出的模式)捕获描述的信息。这个特征使SLBP柔韧到噪音。用基于地面的云图象的试验性的结果证明建议方法能比当前的最先进的方法完成更好的结果。

简介：Objective:Neuronsinthecochlearnucleusshowdifferentresponsepatternstotheshorttonebursts.Becauseofthelimitationsofanimalexperiments,itishardtoexploretheprinciple.Therefore,usingamodeltosimulateCNneuronswillbeafeasibleway.Methods:Basedontheinitialmodelmentionedinthepreviousstudy,weproposedanimprovedCNmodelinMATLABR2012b.Results:Bymodifyingtheparametersofthemodelwefoundtheinterchangesamong"primary-like","chopper",and"onset"responsepatterns.Furthermore,wesimulatedthe"pauser"responsepatternbyaddinganextrainputinourmodel.Conclusion:TheresultsindicatethatthesynapticintegrationsandtheinputmodescangiverisetodifferentcharacteristicsofCNneurons,whicheventuallydeterminetheresponsepatternsofCNneurons.

简介：Thispaperpresentsacentralpatterngenerator（CPG）andvestibularreflexcombinedcontrolstrategyforaquadrupedrobot.Anoscillatornetworkandaknee-to-hipmappingfunctionarepresentedtorealizetherhythmicmotionforthequadrupedrobot.Atwo-phaseparametertuningmethodisdesignedtoadjusttheparametersofoscillatornetwork.First,basedonthenumericalsimulation,theinfluencesoftheparametersontheoutputsignalsareanalyzed,thenthegeneticalgorithm（GA）isusedtoevolvethephaserelationshipsoftheoscillatorstorealizethebasicanimal-likewalkingpattern.Moreover,theanimal＇svestibularreflexmechanismismimickedtorealizetheadaptivewalkingofthequadrupedrobotonaslopeterrain.Coupledwiththesensoryfeedbackinformation,therobotcanwalkupanddowntheslopesmoothly.Thepresentedbio-inspiredcontrolmethodisvalidatedthroughsimulationsandexperimentswithAIBO.UnderthecontrolofthepresentedCPGandvestibularreflexcombinedcontrolmethod,AIBOcancopewithslipping,fallingdownandwalkonaslopesuccessfully,whichdemonstratestheeffectivenessoftheproposedwalkingcontrolmethod.

简介：Theresultsofatheoreticalstudyontheinfluenceofstrengthofinterphaseboundariesinmetal—ceramiccompositeonmacroscopicalcharacteristicsofcompositeresponsesuchasstrength,deformationcapacity,fractureenergyandfracturepatternarepresented.Thestudywasconductedbymeansofcomputer-aidedsimulationbymeansofmovablecellularautomatonmethodtakingaccountofadeveloped'mesoscopical'structuralmodelofparticle-reinforcedcomposite.Thestrengthofinterphaseboundariesisfoundtobeakeystructuralfactordeterminingnotonlythestrengthpropertiesofmetal—ceramiccomposite,butalsothepatternandrateoffracture.Theprinciplesforachievementofthehigh-strengthvaluesofparticle/binderinterfacesinthemetal—ceramiccompositionduetotheformationofthewidetransitionzones(areasofvariablechemicalcomposition)attheinterphaseboundariesarediscussed.Simulationresultsconfirmthatsuchtransitionzonesprovideachangeinfracturemechanismandmaketheachievementofahigh-strengthandahighdeformationcapacityofmetal—ceramiccompositepossible.

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