简介：

简介：Thebilayerorganiclight-emittingdiode(OLED)withabluefluorescentlanthanumcomplex,tris(1-phenyl-3-methyl-4-isobutyryl-5-pyrazolone)-(2,2′-dipyridyl)lanthanum[La(PMIP)3(Bipy)],asalightemittingmaterialandN,N′-diphenyl-N,N′-bis(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine(TPD)asaholetransportingmaterialemitsbrightgreenlightinsteadofbluelight.Thedataoftheabsorption,thephotoluminescence(PL)andthephotoluminescenceexcitation(PLE)spectraofTPD,La(PMIP)3(Bipy)andthemixtureofTPDandLa(PMIP)3(Bipy)(molarratio1∶1)provethattheelectroluminescentemissionoriginatesfromtheexciplexontheinterfacebetweenTPDandLa(PMIP)3(Bipy).Byimprovingdeviceconfigurationwithtris(8-hydroxyquinoline)aluminum(ALQ)asanelectrontransportingmaterial,amaximumluminanceof800cd/m2wasobtained.

简介：

简介：

简介：Thesurfaceandinterfaceelectronicstatesoftris-(8-hydroxyquinoline)aluminum(Alq3)/indium-tinoxide(ITO)weremeasuredandanalyzedbyX-rayphotoelectronspectroscopy(XPS).Theresultsindicatedthat,inAlq3molecule,thebindingenergy(Eb)ofAlatomsis70.7eVand75.1eV,correspondingtoAl(O)andAl(Ⅲ),respectively;ThebindingenergyofCis285.8eV,286.3eV,and286.8eV,correspondingtoCofC-Cgroup,C-O,andC-Nbond,respectively.Nisthemainpeaklocatingat401.0eV,correspondingtoNatomofC-N=C.OatomsmainlybondtoHatom,withthebindingenergyof533.2eV.AsthesputteringtimeofAr+ionbeamincreases,Al2p,C1s,N1s,O1s,In3d5/2andSn3d5/2peaksslightlyshifttowardslowerbindingenergy,andAl2p,C1sandN1speaksgetweaker,whichcontributestodiffusingtheoxygen,indiumandtininITOintoAlq3layer.

简介：TheDebyeequationwithslit-smearedsmallanglex-rayscattering(SAXS)dataisextendedformanidealtwo-phasesystemtoapseudotwo-phasesystemwiththepresenceoftheinterfacelayer,andasimpleaccuratesolutionisproposedtodeterminetheaveragethicknessoftheinterfacelayerinporousmaterials.ThismethodistestedbyexperimentalSAXSdata,whichweremeasuredat25℃,oforgano-modifiedmesoporoussilicapreparedbycondensationoftetraethoxysiland(TEOS)andmethyltriethoxysilane(MTES)usingnon-ionicneutralsurfactantastemplateunderneutralcondition.

简介：接口特征在薄电影设备的性能上拥有很重要的影响。ITO/PTCDA/p-Si薄电影设备与真空蒸发和噼啪声免职方法被建立。ITO/PTCDA/p-Si的表面和接口电子国家被X光检查光电子光谱学(XPS)和氩离子横梁调查蚀刻技术。结果在ITO/PTCDA/p-Si，不是仅仅ITO/PTCDA-Si的接口显示那而且PDCDA-Si能生产散开。而且，每个原子的XPS系列显得化学移动，和Ols和Ols的化学移动是更显著的。CLC数字O484文件代码A工程被中国的国家自然科学基础支持(不同意60076023)

简介：Dual-phaselag(DPL)modelisusedtodescribethenon-Fourierheatconductioninafinitemediumwheretheboundaryatx=0isheatedbyarectangularpulsedenergysourceandtheotherboundaryistightlycontactedwithanothermediumandsatisfiesthecontinuousboundarycondition.Numericalsolutionofthiskindofnon-Fourierheatconductionispresentedinthispaper.Theresultsarecomparedwiththosepredictedbythehyperbolicheatconduction(HHC)equation.

简介：

简介：纤维增强的聚合物(FRP)composites逐渐地正在被用于修理并且通过粘合剂预制长带/板和织物的湿上篮结合败坏的具体结构的部件加强。因为重要性，界面的契约失败模式吸引了研究人员的注意。现在的学习的目的是分析连续横梁由FRP加强了的增强的水泥的接口失败机制。一个分析答案第一被介绍了预言模型的全部debonding过程。现实主义的双线性的契约滑倒界面的法律被采用学习这个问题。装载模型的裂缝繁殖过程被划分成四个阶段(橡皮，有弹性弄软，elastic-softening-debonded和softening-debonded舞台)。在他们之中，elastic-softening-debonded舞台有四亚阶段。方程被增加合适的压力和排水量边界条件解决。最后，契约长度的批评价值决心在由解决同时线性的代数学的方程有效的纸做失败机制。如果concrete-to-plate棱柱的轴的僵硬比率足够大，在上面、更低的FRP盘子之间的相互作用能被忽视。

简介：Theturbulencestructuresnearashearedair-waterinterfacewereexperimentallyinvestigatedwiththehydrogenbubblevisualizationtechnique.Sur-faceshearwasimposedbyanairflowoverthewaterflowwhichwaskeptfreefromsurfacewaves.Resultsshowthatthewindshearhasthemaininfluenceoncoher-entstructuresunderair-waterinterfaces.Low-andhigh-speedstreaksformintheregionclosetotheinterfaceasaresultoftheimposedshearstress.Whenacertainairflowvelocityisreached,'turbulentspots'appearrandomlyatlow-speedstreakswithsomecharacteristicsofhairpinvortices.Atevenhighershearrates,theflowneartheinterfaceisdominatedprimarilybyintermittentburstingevents.Thecoher-entstructuresobservednearshearedair-waterinterfacesshowqualitativesimilaritieswiththoseoccurringinnear-wallturbulence.However,afewdistinctivephenomenawerealsoobserved,includingthefluctuatingthicknessoftheinstantaneousboundarylayerandverticalvorticesinburstingprocesses,whichappeartobeassociatedwiththecharacteristicsofair-waterinterfaces.

简介：

简介：在组成的部件之间的有瑕疵的结合能极大地影响合成结构的性质。处于2Dfibrereinforced的问题产生的有瑕疵的接口的不同类型的asymptotic分析合成材料被建议。执行学习基于管理biharmonic问题的asymptotic减小进二个泛音问题。所有答案在一种关上的分析形式被获得。获得的结果能被用于撤退和pushout测试的计算，以及为合成材料的破裂的调查。

简介：界面的脱臼可以有相应于的一个传播核心一弱砍接口的抵抗。在这份报纸，一个圆锥形的模型被建议在各向异性的bimaterials模仿界面的脱臼的传播核心。由Stroh形式主义和草地功能，有弹性的地的分析表达式为如此的脱臼被推出。作为一个例子拿Cu/Nbbimaterial，方法的精确性和效率被接口条件很好验证，这被表明，一个传播核心能极大地与紧缩的核心相比在界面的脱臼附近减少压力紧张，并且传播核心区域附近的有弹性的地与压缩核心显著地不同，当他们对是的一个地点不太敏感时，1.5预定核心宽度离开传播核心的中心。

简介：Theinterfacialbindingcovalentbonddensity(CBD)andthelocalenvironmentaltotalbondorder(LTBO)oftheNi/Ni3Alinterfacewithdifferentlatticemisfits(δ)werecalculatedbyusingfirst-principlesdiscretevariationXαmethod.ItwasfoundthattheeffectsoflatticemisfitsontheelectronicstructuresofincoherentNi/Ni3Alinterfacewereveryobvious.Ononehand,lessthan-0.6%negativelatticemisfitcanpromotethebindingstrengthofγ/γ′interface.Ontheotherhand,thetotalbondingstrengthofγ/γ′interfacedecreaseswithincreasingδ.Therefore,themagnitudeandsignoflatticemisfitmustbecarefullycontrolledforbalancingthehightemperaturecreepstrengthofNi-basesinglecrystalsuperalloyandthestructuralstabilityofγ/γ′interfacewhenonedesignsanewNi-basesinglecrystalsuperalloy.

简介：Shapememoryalloy(SMA)reinforcedsmartstructurecanbeusedtomakestructuralshapeandstrengthselfadaptedandstructuraldamageself-restrained.AlthoughSMAsmartstructureswithoutdamageswereextensivelystudied,researchesonSMAsmartstructureswithdamageshaverarelybeenreportedthusfar.Inthispaper,thermo-mechanicalbehaviorsofSMAfiberreinforcedsmartstructureswithdamagesareanalyzedthroughashearlagmodelandthevariationalprinciple.Mathematicalexpressionsofthemeso-displacementfieldandthestress-strainfieldofatypicalelementwithdamagesareobtained,andafailurecriterionforinterfacefailurebetweenSMAfibersandmatrixisestablished,whichisappliedtoanexample.ResultspresentedhereinmayprovideatheoreticalfoundationforfurtherstudiesonintegrityofSMAsmartstructures.

简介：Theinteractionofanti-planeelasticSHwaveswithaperiodicarrayofinterfacecracksinamulti-layeredperiodicmediumisanalyzedinthispaper.AperfectperiodicstructurewithoutinterfacecracksisfirststudiedandthetransmissiondisplacementcoefficientisobtainedbasedonthetransfermatrixmethodinconjunctionwiththeBloch-Floquettheorem.Thisisthengeneralizedtoasingleandperiodicdistributionofcracksatthecenterinterfaceandtheresultiscomparedwiththatofperfectperiodiccaseswithoutinterfacecracks.Thedependenceofthetransmissiondisplacementcoefficientonthefrequencyoftheincidentwave,theinfluencesofmaterialcombination,crackconfigurationandincidentanglearediscussedindetail.Comparedwiththecorrespondingperfectperiodicstructurewithoutinterfacecracks,anewphenomenonisfoundintheperiodiclayeredsystemwithasingleandperiodicarrayofinterfacecracks.

简介：在这份报纸，我们学习Nitsche为二个维的散开方程的接口问题的扩大有限元素方法(XFEM)。明确地，我们在格子的某形状常规的家庭上学习二次的XFEM计划并且关于网孔尺寸证明计划的最佳的集中率。主要努力被奉献到分类在元素和接口之间的交叉的盒子上并且证明为扩大有限元素功能的加权的踪迹不平等需要，并且分析XFEM的一般框架那时能被实现。

简介：有多域和三倍的连接点的椭圆形的接口问题在工程和科学有宽应用程序。然而，角落奇特为大多数存在方法使它成为一个挑战性的问题。一个精确、有效的方法被需要。在这份报纸，有non-body-fitting格子的一个有效非传统的有限元素方法被建议与多域和三倍的连接解决椭圆形的接口问题。结果方程的线性系统是积极的明确如果为在领域的椭圆形的方程的矩阵系数是积极的明确。数字实验证明这个方法是在为piecewise的L标准精确的大约第二份订单光滑的答案。角落奇特能以一个方法被处理以便精确性不堕落。三倍的连接小心地被解决，它不需要被放在格子上，给我们的方法潜力对待没有改革网孔的动人的接口问题。

简介：Regardlessofallkindsofdifferentformulaeusedforthetraction-separationrelationshipincohesivezonemodeling,thepeaktractionσ_mandtheseparation-to-failureδ_0(orequivalentlythework-to-separationΓ)aretheprimaryparameterswhichcontroltheinterfacialfracturebehaviors.Experimentally,itishardtodeterminethosequantities,especiallyforδ_0,whichoccursinaverylocalizedregionwithpossiblycomplicatedgeometriesbymaterialfailure.BasedontheDugdalemodel,weshowthatthesepa...