简介：

简介：Inthispaper,weestablisharesultofLeray-Schauderdegreeontheorderintervalwhichisinducedbyapairofstrictloweranduppersolutionsforasystemofsecond-orderordinarydifferentialequations.Asapplications,weprovetheglobalexistenceofpositivesolutionsforamulti-parametersystemofsecond-orderordinarydifferentialequationswithrespecttoparameters.ThediscussionisbasedontheresultofLeraySchauderdegreeontheorderintervalandthefixedpointindextheoryincones.

简介：Nonlinearconsensusprotocolsfordynamicdirectednetworksofmulti-agentsystemswithfixedandswitchingtopologiesareinvestigatedseparatelyinthispaper.Basedonthecentremanifoldreductiontechnique,nonlinearconsensusprotocolsarepresented.Weprovethatagroupofagentscanreachaβ-consensus,thevalueofwhichisthegroupdecisionvaluevaryingfromtheminimumandthemaximumvaluesoftheinitialstatesoftheagents.Moreover,wederivetheconditionstoguaranteethatalltheagentsreachaβ-consensusonadesiredgroupdecisionvalue.Finally,asimulationstudyconcerningtheverticalalignmentmanoeuvereofateamofunmannedairvehiclesisperformed.Simulationresultsshowthatthenonlinearconsensusprotocolsproposedaremoreeffectivethanthelinearprotocolsfortheformationcontroloftheagentsandtheyareanimprovementoverexistingprotocols.

简介：Weproposeatwin-arraycapacitance(TAC)sensorforthemeasurementofconcentration,velocity,andflowrateofgas-solidtwo-phaseflow.Usingthesensitivitynon-uniformityofaneighboringelectrode,theregionalconcentrationofthecross-sectionwasreconstructeddirectly.Additionally,thefiniteelementmethodwasusedtoanalyzethecapacitanceofthesensorscomposedofadifferentnumberofelectrodes.TACsensorswith4,6,and8electrodeswerefoundtobethebestforregionalconcentrationmeasurements.Basedonthis,the8-electrodetwin-planeelectricalcapacitancetomography(ECT)sensor,the4-electrodeTACsensor,andthe6-electrodeTACsensorwereusedtomeasuretheconcentration,velocity,andflowrateofgranulesingranularflow.TheflowratesmeasuredbyECTandTACwerecomparedwiththeflowrateobtainedbyagravitysensortoverifythemeasurementaccuracy.Experimentsonverticalandinclinedpipelineswithgranularflowwerecarriedout.Wefoundthattheflowrateaccuracyofthe4-electrodeTACisdistinctlybetterthanthatofthe6-electrodeTACintheverticalpipelinewhiletheflowrateaccuracyofthe4-electrodeTACandthe6-electrodeTACweresimilarfortheinclinedpipeline.

简介：我们为解决三凸的可分离的功能的和的最小化建议了一个最初双的固定的点算法(PDFP)，它与Lipschitz连续坡度，线性合成nonsmooth功能，和nonsmooth功能包含光滑的功能。与类似的工作相比，在PDFP的参数更容易选择并且在一个相对更大的范围被允许。我们将扩大PDFP解决二种可分离的多块最小化问题，在信号处理和成像科学产生。这个工作显示出把PDFP算法用于多块问题的灵活性并且说明实际、充分切开的计划怎么能被导出，特别为大规模问题的平行实现。连接和比较到轮流出现的方向方法(ADMM)更多样地也是现在。我们表明不同算法怎么能被通过稀少的经典例子以不同方法切开这些问题获得有限制的调整最不方形的模型。特别地，在多块ADMM的上下文为线性地抑制的问题，它具有伟人的一个班感兴趣，能被PDFP也与集中的一条保证解决。最后，一些实验被提供说明PDFP算法导出的几个计划的表演。

简介：支持向量机器原来为二进制分类被设计。怎么有效地扩大它因为多班分类仍然是一个进行中的研究问题。Inthis纸，我们认为是多范畴支持的自然延期的核机器是Crammer和歌手原来建议的向量机器。基于算法稳定性，我们为机器在论文建议了的核获得归纳错误界限。

简介：

简介：调查一个明确的迎风的有限元素方法的集中，平均边的有限元素方法到多维的分级的能量守恒定律。有限元素计划和主要集中定理的讨论；技术词根的证明。

简介：Theactivecontrolofvibrationforabeamsubjectedtomulti-disturbancesisinvestigatedbasedonwavepropagatingsuppression.Inthiscontrolsystem,therearethesamenumbersofthesensors,thesignalinputtingtothecon-trollerandthedisturbances,butthereisonlyonecontroller.Itisalocalcontrolsystem,thesystemparametersdependonlyonthecharacteristicsofthestructureboundedbythesensorsandthecontroller,andweneednottakeintoaccounttheboundaryconditionsandthepropertiesofstructuresoutsideofthisfield.Thesys-temisefficientwhenastructurevibratesinmiddleandhighfrequencyregions.Somecontroldesignrulesaredevelopedfromthecalculationresults.

简介：在现在的纸，在有弹性的媒介嵌入的多围的碳nanotubes(MWCNT)的动态稳定性包括热环境效果被调查。到这个目的，一个非局部的Timoshenko横梁模型被开发它捕获小规模效果。碳nanotubes的动态管理方程包括轴的压缩力量的效果基于Timoshenko横梁理论被提出。然后，参量的研究被进行与简单地支持的结束支持在MWCNT的动态稳定性特征上调查静态的负担因素，温度变化，非局部的参数，苗条比率和有弹性的媒介的春天常数的影响。

简介：Contact-impactprocessesoccuratmostcasesinmultibodysystems.Sub-periodsandsub-regionalmethodsarefrequentlyusedrecently,anddifferentcoordinatesareintroducedinbothoftheapproaches.However,thesub-regionalmethodseemstobemoreeffective.Floatingframeofreferenceformulationiswidelyusedforcontacttreatment,whichdescribesdisplacementsbytherigidbodymotionandasmallsuperposeddeformation,andthecoordinatesdepictingthedeformationincludefiniteelementnodalcoordinatesandmodalcoordinates,theformerdealswiththecontact/impactregion,andthelaterdescribesthenon-contactregion.Inthispaper,freeinterfacesubstructuremethodisusedinmodeling,andthedynamicequationofasinglebodyisderived.Then,usingtheLagrangeequationofthefirstkind,thedynamicequationsofmultibodysystemsareestablished.Furthermore,contact-impactareasaretreatedthroughadditionalconstraintequationsandLagrangemultipliers.Usingsuchapproach,thenumberofsystemcoordinatesandthedimensionsofmassmatrixaresignificantlyreducedwiththemodaltruncation,thereforebothoftheefficiencyandaccuracyareguaranteed.Finiteelementmethodinthelocalcontactregioncandealwithcontact/impactbetweenarbitrarilycomplexinterfaces,whereas,additionalcontactconstraintsusedinthenodaldescriptionregioncanavoidthecustomizedparametersthatareusedinthecontinuousforcemodel.

简介：High-pressureratioandwideoperatingrangearehighlyrequiredforaturbochargerindieselengines.Arecirculationflowtypecasingtreatmentiseffectiveforflowrangeenhancementofcentrifugalcompressors.Tworinggroovesonasuctionpipeandashroudcasingwallareconnectedbymeansofanannularpassageandstablerecirculationflowisformedatsmallflowratesfromthedownstreamgroovetowardtheupstreamgroovethroughtheannularbypass.Theshapeofbaselinerecirculationflowtypecasingismodifiedandoptimizedbyusingamulti-pointoptimizationcodewithametamodelassistedevolutionaryalgorithmembeddingacommercialCFDcodeCFXfromANSYS.Thenumericaloptimizationresultsgivetheoptimizeddesignofcasingwithimprovingadiabaticefficiencyinwideoperatingflowraterange.Sensitivityanalysisofdesignparametersasafunctionofefficiencyhasbeenperformed.Itisfoundthattheoptimizedcasingdesignprovidesoptimizedrecirculationflowrate,inwhichanincrementofentropyriseisminimizedatgroovesandpassagesoftherotatingimpeller.

简介：

简介：Thispaperisconcernedwiththedynamicsofaspacecraftwithmulti-strutpassivedamperforlargeflexibleappendage.Thedamperplatformisconnectedtothespacecraftbyaspherichinge,multipledampingstrutsandarigidstrut.Thedampingstrutsprovidedampingforceswhiletherigidstrutproducesamotionconstraintofthemultibodysystem.TheexactnonlineardynamicalequationsinreducedorderformarefirstlyderivedbyusingKane＇sequationinmatrixform.Basedontheassumptionsofsmallvelocityandsmalldisplacement,thenonlinearequationsarereducedtoasetoflinearsecond-orderdifferentialequationsintermsofindependentgeneralizeddisplacementswithconstantstiffnessmatrixanddampingmatrixrelatedtothedampingstrutparameters.Numericalsimulationresultsdemonstratethedampingeffectivenessofthedamperforboththemotionofthespacecraftandthevibrationoftheflexibleappendage,andverifytheaccuracyofthelinearequationsagainsttheexactnonlinearones.

简介：Electrostaticlayer-by-layerself-assemblymultilayerfilmsweresuccessfullyfabricatedfromC60-ethylenediamineadduct(C60-EDA)andDNA.Undervisiblelightirradiation,DNAisreadytobecleavedandthefilmsaredestroyed.

简介：Inthispaper,anewdevelopedmulti-channelpre-processingcircuitforsignalsfromtemperaturesensorwasintroducedinbrief.Thiscircuitwasdevelopedtocollectandamplifythesignalsfromtemperaturesensor.Thisisauniversalcircuit.Itcanbeusedtoprocessthesignalsfromthermocouplesandalsousedtoprocesssignalsfromthermistors.Thiscircuitwasmountedinastandardbox(440W×405D×125Hmm)asaninstrument.The

简介：Thispaperdealswiththeasymptoticstabilityanalysisofθ-methodsformultipantographdelaydifferentialequation{ú(t)=λu(t)+∑↑ιi=1μiu(qit),0

简介：Byreplacingamediumwithreinforcingcomponentsorientedanddistributeduniformlyinamul-ti-dimensionalspace,aconstitutivemodelisconstructed.Thecomponentsareextended/compressedcompatiblywiththestrainandtheresultantofloadexertedonthemtobalancethestress.Theirload-elongationrelationcanbedeterminedfromaconventionalmaterialtest.Eachcomponentundergoesdifferentelongationhistorydependingonitsownorientationduringdeformation,sothatthemodelcansimulateelasto-plasticbehaviorofmaterialsun-derpolyaxialloadingconditions.Theincrementalconstitutivematrixbasbeenderivedforapplicationinnumeri-calanalysisandayieldcriterionisalsointroduced.Afewsubsequentyieldsurfaceshavebeenpredictedandcom-paredwithexperiments.

简介：在这篇文章，我们得到non-selfsimilar基本在另一种看法能量守恒定律飘动，它与平常的自我类似的转变不同。答案有不同全球结构。这篇文章被划分成三部分。第一部分是介绍。在第二部分，我们讨论non-selfsimilar基本波浪和他们二维的能量守恒定律的一个班的相互作用。在这种情况中，我们考虑起始的断绝是有u+的抛物线的盒子>0，当明确的non-selfsimilar变成稀薄波浪能被获得时。在第二部分，我们考虑盒子u+的答案结构<0。新答案结构被在不同基本波浪之间的相互作用获得，并且将继续与另外的状态交往。全球答案将与一种尺寸的状况很不同。

简介：这份报纸涉及多域光谱方法，基于内部惩罚不连续的Galerkin(IPDG)明确的表达，为经由一个准确通报或球形的Dirichlet-to-Neumann(DtN)边界截断的外面的Helmholtz问题调节。一条有效反复的途径被建议本地化全球DtN边界条件，它为scatterers的复杂几何学便于多域方法，和处理的实现。在不连续的Galerkin明确的表达下面，建议方法允许在不同子域上使用不同的度的多项式基础功能，并且更重要地，明确的波浪数字依赖估计光谱计划能被导出，它为多域是以某种方式难以置信的连续Galerkin明确的表达。[从作者抽象]