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简介：硼是不平常的物理特征从电子缺乏的、高度去除的共有原子价契约导出的周期表和展览上的碳的邻居。作为碳的最近的邻居，硼以类似于碳的许多方法，例如有采用sp2杂交的短共有原子价半径和灵活性。因此，硼能能够形成单层graphene的结构的类似物。尽管许多理论报纸报导了发现硼的二维的同素异形体，为如此的原子薄的硼nanostructures没有试验性的证据直到2016。最近，单个层的硼的成功的合成(叫作borophene)在Ag(111)上，底层打开硼nanostructures的时代。在这简短评论，我们将讨论以合成技术，描述和原子模型在borophene上被做了的进步。然而，borophene只在幼年期；更多的努力被期望在优秀样品的控制合成上在未来被作并且定制它的物理性质。

简介：非完整哀减信息下的劣化结构时变可靠度评估研宄衰减函数的概率分布对结构可靠度的影响；在非完整衰减信息下，对结构的时变可靠度进行评估。1．假定衰减函数服从5种常见的概卒分靠，讨论可靠度分析结果的差异；2．当衰减函数的概率分布（或各概率分布的杖重）未知时，提出平均可靠度的分析方法。假定承载力是允伞相关的随机过程，扯其概率分伟未知的情况下：（1）假定5种常见的概率分布，对结构可靠度进行分析和比较；（2）将时变可靠发的计算公式Taylor展开，转化为关于衰减函数一阶矩和二阶矩的函数，推导平均可靠度的计算方法（公式18）。1．不同的衰减函数概率分布对结构可靠度的影响显学；2．利用本文提出的方法，在衰减函数概率的分伟（或各概率分布的杖重）未知时，可以得出结构可靠度的合理评估。

简介：TheDepUty(dependenciesutility)canbeclassifiedasaprojectandprocessmanagementtool.ThemaingoalofDepUtyistoassistbymeansofsourcecodeanalysisandgraphicalrepresentationusingUML,inunderstandingdependenciesofsub-systemsandpackagesinCMSobjectOrientedsoftware,tounderstandarchitecturealstructure,andtoschedulecodereleaseinmodularisedintegration.Italsoallowsanew-comertomoreeasilyunderstandtheglobalstructure,ofCMSsoftware,andtovoidcirculardependenciesup-frontorre-factorthecode,incaseitwasalreadytooclosetotheedgeofnon-maintainability.WewilldiscussthevariousviewsDepUtyprovidestoanalysepackagedependenciesandillustrateboththemetricsandstylecheckingfacilitiesitprovides.

简介：与称为超点阵的各种各样的配置覆盖同量的光格子能导致异国情调的格子拓扑学并且，接着新奇物理的发现。在这学习，由重叠格子的最大值，新孤立的结构被创造，当最小的干扰能产生各种各样的sublattice模式时。原始格子的三种不同类型被用来表明孤立的平方，在二维的光超点阵，其模式能被调节极化动态地操作的三角形、六角形的sublattice结构，频率，和激光横梁的紧张。另外，我们建议改变相对阶段在sublattices调整通道振幅的方法。我们的配置提供唯一的机会在交叉形成的格子学习粒子纠纷井并且在异国情调的格子几何学实现特殊的量逻辑门。

简介：Theoreticalandexperimentalinvestigationsofheattransferinflatcurvilinearchannelhavebeencarriedout.Linearandnon-lineareffectsofDeanvortexesonintensityofheattransferweretakenintoaccount.Thelineareffect,whichdescribeharmonic(sinuous)variationoftheheattransfercoefficientneartheconcavesurfaceofthechannelandthenon-lineareffectcausesthegeneralincreaseoftheheattransfercoefficientduetoaugmentationofheattransferengenderedbytheDeanvortexes.Forbotheffects,mathematicalrelationswereobtainedintheformofquadratures.Thesenumericalresultsweremodifiedtotheformconvenientinengineeringcalculations.TheinvestigationshaveshownthatbothlinearandnonlinearcomponentsgrowupwiththeDeannumber.NonlinearcomponentQ0Tincreasesmoreabruptly,whilethelinearoneQ1Tismoreconservative.Thisisaconfirmationofstabilityofvortexstructures.

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简介：WeintroducetheEuler-LagrangecohomologytostudythesymplecticandmultisymplecticstructuresandtheirpreservingpropertiesinfiniteandinfinitedimensionalLagrangiansystemsrespectively.WealsoexploretheircertaindifferencediscretecounterpartsintherelevantregularlydiscretizedfiniteandinfinitedimensionalLagrangiansystemsbymeansofthedifferencediscretevariationalprinciplewiththedifferencebeingregardedasanentiregeometricobjectandthenoncommutativedifferentialcalculusonregularlattice.InordertoshowthatinallthesecasesthesymplecticandmultisymplecticpreservingpropertiesdonotnecessarilydependontherelevantEuler-Lagrangeequations,theEuler-Lagrangecohomologicalconceptsandcontentintheconfigurationspaceareemployed.``

简介：Duetotheupcomingdemandsofnext-generationelectronic/magnetoelectronicdeviceswithlow-energyconsumption,emergingcorrelatedmaterials(suchassuperconductors,topologicalinsulatorsandmanganites)areoneofthehighlypromisingcandidatesfortheapplications.Forthepastdecades,manganiteshaveattractedgreatinterestduetothecolossalmagnetoresistanceeffect,charge-spin-orbitalordering,andelectronicphaseseparation.However,theincapableofdeterministiccontrolofthoseemerginglow-dimensionalspinstructuresatambientconditionrestricttheirpossibleapplications.Therefore,theunderstandingandcontrolofthedynamicbehaviorsofspinorderparametersatnanoscaleinmanganitesunderexternalstimuliwithlowenergyconsumption,especiallyatroomtemperatureishighlydesired.Inthisreview,wecollectedrecentmajorprogressesofnanoscalecontrolofspinstructuresinmanganitesatlowdimension,especiallyfocusingonthecontroloftheirphaseboundaries,domainwallsaswellasthetopologicalspinstructures(e.g.,skyrmions).Inaddition,capacitor-basedprototypespintronicdevicesareproposedbytakingadvantageoftheabovecontrolmethodsinmanganites.Thiscapacitor-basedstructuremayprovideanewplatformforthedesignoffuturespintronicdeviceswithlow-energyconsumption.

简介：二种高度维的谎言代数学和他们的环代数学被介绍，为哪个象TB层次一样包括BroerKaup(放射性元素)层次和散长波浪(DLW)层次的联合integrablecouplings扩展integrable模型的一些被获得。从联合integrablecouplings的减小，BK方程，DLW方程，和TB方程的相应联合integrablecouplings分别地被获得。特别，TB方程联合的联合integrable归结为著名mKdV方程的一些integrablecouplings。分别地，三种soliton层次的联合integrablecouplings的Hamiltonian结构被采用变化身份得出。最后，我们把进化方程的BK层次分解成代表和宽松的对被给其伴随的抑制x的流动和抑制tn的流动。

简介：Thenovelideathatspin-orbitcoupling(SOC)andans-wavepairingsystemcanleadtoinducedpwavepairingwithastrongmagneticlimit,hasstimulatedwidespreadinterestinsearchingforMajoranafermions(MFs)insemiconductor-superconductorhybridstructures.However,despitemajoradvancesinthesemiconductornanotechnology,thissystemhasseveralinherentlimitationsthatprohibittherealizationandidentificationofMFs.Weovercometheselimitationsbyreplacingthes-wavesuperconductorwiththetype-IIFulde-Ferrell(FF)superconductor,inwhichthecenter-of-massmomentumoftheCooperpairrenormalizesthein-planeZeemanfieldandchemicalpotential.Asaresult,MFscanberealizedinsemiconductornanowireswithsmallvaluesoftheLandég-factorandhighcarrierdensities.TheSOCstrengthdirectlyinfluencesthetopologicalboundary;thus,thetopologicalphasetransitionandassociatedMFscanbeengineeredbyanexternalelectricfield.Theoretically,almostallsemiconductornanowirescanbeusedtorealizeMFsbyusingtheFFsuperconductor.However,wefindthatInPnanowireismoresuitablefortherealizationofMFscomparedtoInAsandInSbnanowires.Thus,thisnewschemecantakefulladvantageofthesemiconductornanotechnologyfortherealizationofMFsinsemiconductor-superconductorhybridstructures.

简介：Theimprovedlaser-to-pedestalcontrastratioenabledbycurrenthigh-powerlaserpulsecleaningtechniquesallowsthefinefeaturesofthetargetsurvivebeforethemainlaserpulsearrives.Weproposetointroducethenano-fabricationtechnologiesintolaser–plasmainteractiontoexplorethenoveleffectsofmicro-structures.Wefoundoutthatnotonlylaser-drivenparticlesourcesbutalsothelaserpulseitselfcanbemanipulatedbyspecificallydesignedmicro-cylinderand-tubetargets,respectively.Theproposalwassupportedbyfull-3Dparticle-in-cellsimulationsandsuccessfulproofof-principleexperimentsforthefirsttime.Webelievethiswouldopenawaytomanipulaterelativisticlaser–plasmainteractionatthemicro-sizelevel.

简介：稳定的几何学，电子结构，和磁性(8,0)并且(4,4)做与的围单人赛的BNnanotubes(BNNT)稀土元素(RE)原子与密度用第一原则的pseudopotential飞机波浪方法被调查功能的理论(DFT)。结果证明这些RE原子能有效地与有利精力在BNNT被做。因为弯曲效果，为RE-atomdoped(4,4)BNNT的有约束力的精力的价值比一样的原子在上的那些大(8,0)BNNT。在RE-5d，6s，和B-2p之间的电子转移，N-2porbitals也被观察。而且，BNNT的电子结构和磁性能被如此的做修改。结果证明Ce，下午，Sm，和Eu原子的吸附能导致磁化，当当BNNT与La被做时，没有磁力被观察时。这些结果为spintronics应用程序并且为开发磁性的nanostructures是有用的。

简介：Thecomplexbandstructuresofa1Danisotropicgraphenephotoniccrystalareinvestigated,andthedispersionrelationsareconfirmedusingthetransfermatrixmethodandsimulationofcommercialsoftware.Itisfoundthattheresultofusingeffectivemediumtheorycanfitthederiveddispersioncurvesinthelowwavevector.Transmission,absorption,andreflectionatobliqueincidentanglesarestudiedforthestructure,respectively.Omni-gapsexistforanglesashighas80°fortwopolarizations.Physicalmechanismsofthetunabledispersionandtransmissionareexplainedbythepermittivityofgrapheneandtheeffectivepermittivityofthemultilayerstructure.

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简介：HierarchicalZSM-11microsphereswithintercrystallinemesoporouspropertiesandrod-likecrystalsintergrowthmorphologyhavebeensynthesizedusingaspotoftetrabutylammoniumasasingletemplate.XRD,FTIR,SEM,TEMandN2adsorptionanalysisrevealedthateachindividualparticlewascomposedofnanosizedrodcrystalsinsertingeachotherandtheintercrystallinevoidsexistingamongrodsgaveasignificantmesoporesizedistribution.Steamtreatmentresultdemonstratedtheexcellenthydrothermalstabilityofsamples.Variouscrystallizationmodesincludingconstanttemperaturecrystallization(one-stagecrystallization)andtwo-stagetemperature-varyingcrystallizationwithdifferent1ststagedurationswereinvestigated.TheresultssuggestedthatthecrystallizationmodesweremainlyresponsiblefortheadjustableparticlesizeandtexturalpropertiesofsampleswhilethesmallamountoftetrabutylammoniumbromidewasmainlyusedtodirecttheformationofbothZSM-11frameworkanditsintergrowthmorphology.Furthermore,theperformanceofoptimalZSM-11asanactivecomponentforthecatalyticpyrolysisofheavyoilwasalsoinvestigated.Comparedwiththecommercialpyrolysiscatalyst,thehierarchicalZSM-11catalystexhibitedahighselectivitytodesiredproducts(LPG+gasoline+diesel),aswellasamuchlowerdrygasandcokeyield,plusahighselectivityandyieldoflightolefins(C=3C=4)andverypoorselectivitytobenzene.Therefore,fullyopenmicropore-mesoporeconnectivitywouldmakesuchhierarchicallyporousZSM-11zeolitesveryattractiveforapplicationsincleanpetrochemicalcatalysisfield.

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简介：接触暴露被期望发生在常规平版印刷术，并且能是进程偏差的来源(例如缩小和模板的失真)在反应离子蚀刻并且诱导地联合的血浆蚀刻，，期间，这些偏差被离子轰炸导致。这典型地导致不希望得到的sidewall效果，例如更低的sidewall角度。这里，我们报导能有效地在平版印刷术应用最小化sidewall效果的一个新奇的挂bowlshaped平版印刷术面具。作为一个测试用例，有垂直sidewalls的标准硅碳化物支柱用这个面具被制作。面具能与紫外线平版印刷术被用于high-aspect-ratio结构的制造。

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简介：An-typesmallmoleculeDC-IDT2F,with4,4,9,9-tetrakis(4-hexylphenyl)-indaceno[1,2-b:5,6-b]dithiopheneasacentralbuildingblock,furanasπ-bridges,and1,1-dicyanomethylene-3-indanoneasendacceptorgroups,wassynthesizedandusedasanelectronacceptorinsolution-processedorganicsolarcells(OSCs).DC-IDT2Fexhibitedgoodthermalstability,broadandstrongabsorptionin500–850nm,anarrowbandgapof1.54eV,LUMOof–3.88eV,HOMOof–5.44eVandanelectronmobilityof6.5×10–4cm2/(V·s).DC-IDT2F-basedOSCswithconventionalandinvertedstructuresexhibitedpowerconversionefficienciesof2.26and3.08%,respectively.Theeffectofverticalphaseseparationandmorphologyoftheactivelayeronthedeviceperformanceinthetwostructureswasstudied.