简介：Core-shellstructurednanosphereswithmesoporoussilicashellandNicore(denotedasNi@meso-SiO2)arepreparedthroughathree-stepprocess.MonodispersedNiprecursorsarefirstprepared,andthencoatedwithmesoporousSiO2.FinalNi@meso-SiO2spheresareobtainedaftercalcination.TheproductsarecharacterizedbyX-raypowderdiffraction,transmissionelectronmicroscopyandN2adsorption-desorptionmethods.Thesesphereshaveahighsurfaceareaandarewelldispersedinwater,showingahighcatalyticactivitywithaTOFvalueof18.5,andoutstandingstabilityinhydrolyticdehydrogenationofammoniaboraneatroomtemperature.

简介：有在粒子的核心的高carboxyl内容的没有肥皂的吸水恐水病的核心壳乳胶粒子经由播种乳剂被综合聚合使用甲基methacrylate(MMA)，丁基acrylate(BA)，甲基丙烯酸(MAA)，苯乙烯(圣)和乙烯乙二醇dimethacrylate(EGDMA)作为单体，并且在聚合，粒子尺寸和形态学上在核心准备使用的MMA内容的影响被传播电子显微镜学调查，动态轻散布结果证明播种乳剂聚合能用当在核心准备的MAA内容是时，喂过程的饥饿的单体顺利被执行平等者到或不到24wt%，并且有恐水病的PSt壳的吸水的P(MMA-BA-MAA-EGDMA)核心的包含的效率随MAA内容的增加减少了。当有中等极性的P(MMA-MAA-St)的夹层在P(MMA-BA-MAA-EGDMA)核心和PSt壳之间被插入时，井在核心准备与24wt%MAA内容设计了没有肥皂的吸水恐水病的核心壳乳胶粒子被获得。

简介：FortheBarievmodelwithsingleelectronhopping,pairpoppingandhardcorepotential,weprovetheintegrabilityofthismodelunderopenboundaryconditionsandobtainedtheBetheansatzequationsbyusingthereflectionequationsoftheopen-boundaryXXZmodel.

简介：Coreshell硅石nanoparticles在修改弄湿行为的表面是优异的，提高在结晶化的成核和生长，改进裸体nanoparticles的分散，并且因此升级器官的聚合物的全面性质。在包括聚酯的几聚合物的monodispersecoreshell硅石粒子的分散行为和形态学被考察，他们的潜在的应用程序被讨论。

简介：Theconceptofcombiningmetallichoneycombwithfoldedthinmetallicsheets(corrugation)toconstructanovelcoretypeforlightweightsandwichstructuresisproposed.Thehoneycomb–corrugationhybridcoreismanufacturedbyfillingtheintersticesofaluminumcorrugationswithprecision-cuttrapezoidalaluminumhoneycombblocks,bondedtogetherusingepoxyglue.Theperformanceofsuchhybrid-coredsandwichpanelssubjectedtoout-of-planecompression,transverseshear,andthree-pointbendingisinvestigated,bothexperimentallyandnumerically.Thestrengthandenergyabsorptionofthesandwicharedramaticallyenhanced,comparedtothoseofasandwichwitheitheremptycorrugationorhoneycombcore.Theenhancementisinducedbythebeneficialinteractioneffectsofhoneycombblocksandfoldedpanelsonimprovedbucklingresistanceaswellasalteredcrushingmodesatlargeplasticdeformation.Thepresentapproachprovidesaneffectivemethodtofurtherimprovethemechanicalpropertiesofconventionalhoneycomb-coredsandwichconstructionswithlowrelativedensities.

简介：TiO_2-coatedpolystyrenenanoparticleswerepreparedinasimpleway.First,functionalPSparticlesweresynthesizedbycopolymerizingonekindofpolymerizablesurfactantwithstyrene.Thenthestabledispersionsofpolystyrenenanoparticleswereusedastemplates,andpolystyrenenanoparticleswerecoatedwithtitaniabyinsituhydrolysisoftetra-n-butyltitanate(TBT).Nosurfacetreatmentandcentrifugation/redispersioncycleprocesswereneededduringthewholeexperiment.IsolatedPSsphereswithuni...

简介：Experimentswereconductedtostudythegenerationofaircoreanditseffectontheoutflowshapeanddischargeinacylindricalwatertankwithabottomwell-designedoutlet.Dependingonthestagesoftheaircoreinthetank,theoutflowshapecanvaryfromasmoothwaterjettoasmoothspindleshapewithair-core,andtowatersprays.Thediameterofthenozzlesizealsohasinfluenceontheoutflowpattern.Theexistenceofthepenetratedaircorecandramaticallyreducetheoutflowdischarge,withthedischargecoefficientdecreasingwiththenozzlediameter.

简介：Thispaperconcernswiththecoreofnonatomicgaxaesoffomaf(μ),whereμisanonatomicnonnegativemeasureandfisacontinuousconvexfunctiononthedomalnofμ.Themainresultofthispaperisthatthecoreofthegameisnotcompactunderthenormtopologyunlessthegameitselfisameasure.ThisshowsthelargenessofthecoreinasenseotherthanthatdefinedbySharkyforfinitecases.

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简介：'Giant'CdSe/CdScore/shellnanocrystals(NCs)weresynthesizedwiththickCdSshell(15monolayers),andthex-raydiffraction(XRD)measurementindicatesthereisazincblendephaseinthethickCdSshell,whereasittransformedintowurtzitephaseunder5minradiationwitha400nm,594μJ∕cm2femtosecond(fs)laserbeam.TheevolutionoftheNCs’spontaneousemissionunderthefslaserradiationwasrecordedwithaHamamatsustreakcamera.Theas-synthesizedNCsexhibitanamplifiedspontaneousemission(ASE)at530nm,whichcomesfromabulk-likeCdSshellduetotheinterfacialpotentialbarrier,whichcouldslowdowntherelaxationofholesfromtheshelltothecore.Afterbeingannealedbyanfslaser,theASEoftheg-NCsistransferredfromabulk-likeCdSshelltoaquantum-confinedCdSecorebecausethephasetransformationdeterminedwiththeXRDmeasurementcouldremovetheinterfacialbarrier.BesidestheASEat643nm,twoshorter-wavelengthASEpeaksat589and541nm,correspondingtoopticaltransitionsofthesecond(1P)andthird(1D)electronquantizationshellsoftheCdSecore,alsoappear,thusindicatingthatAugerrecombinationiseffectivelysuppressed.

简介：Thechiralclusters(μ3-S)MCoW(CO)8[η^5-C5H4C(O)OCH3][M=Ru(2),Fe(3)]weresynthesizedbyasymmetricinductionofN-benzylcinchoniumchlorideasphase-transfercatalyst(PTC).ThemostsuitableamountofPTCis70mol%.Cluster3wasdeterminedbysinglecrystalX-raydiffractionanalysis.Thebesteeofthechiralclusterisover20%.

简介：吸收系列和折射索引变化在一个核心/壳量点为激子理论上被计算。我们的方法论的优点是一个人能由在监禁潜力改变二个参数调查排斥核心的影响。光吸收上的激子量点的维数效果被学习了。在一样的政体，激子的光吸收紧张比为二维的量戒指为核心/壳量点是小得多的，这被发现了。线性并且非线性的光吸收系数和折射索引变化与监禁潜力的变化被检验了。结果证明光吸收和折射索引变化被核心/壳量点的排斥核心强烈影响。而且，计算结果也表明作为内部半径增加，山峰系数和激子的折射索引变化将显示出的吸收珍视在核心/壳量点的光Aharonov-Bohm摆动。

简介：在艾尔，Au，Ag，Cu和Ni的分裂的边脱臼的扩大核心结构在脱臼的格子理论以内被决定。管理排水量的2D脱臼方程被被概括叠的差错精力的parameterization决定的恢复力量联合。夸耀变化方法被介绍解决脱臼方程，试用答案被二arctan类型功能与二个未经决定的参数组成。部分脱臼的核心宽度比由于水晶的组件的考虑在概括Peierls-Nabarro模型获得了的宽。

简介：因为stabilizer是被看到的，新奇水溶性的做Mn的CdTe/ZnS核心壳量的合成点使用一个建议超声的助理方法和3-mercaptopropionic酸(MPA)。获得高光的紧张，包括pH价值，反应温度，倒流时间和空气，preparative以后处理被调查了。为做Mn的CdTe/ZnS的优秀荧光，最佳的条件是pH11，倒流温度100慣?慰慲敭整獲漠?敫潴??戠瑯?湩瘠捡潵愠摮愠畱潥獵猠汯瑵潩吗？

简介：Coremodecutoffisausefulconceptnotonlyforataperedsingle-corefiber(SCF)butalsoforataperedmulticorefiber(MCF)torealizecladdingmodetransmission.Inthispaper,cut-offconditionsofeithercoremodefortaperedSCFsorsupermodesforMCFsaretheoreticallyinvestigated.RigorousanalyticalformulasarederivedforthemodesofSCFbyathree-layerwaveguidemodel,andanapproximationformulaofthecut-offconditionisgivenfortheLP01mode.ThesupermodesofMCFsareanalyzedbythecouplingmodetheory,andthecut-offconditioniscalculatedbyanumericalmethod.Simulationresultsshowthatthein-phasesupermodeofMCFshasasimilarcut-offconditionwiththatofSCF.Basedonthisproperty,aconvenientapproximateformulaisgiventoestimatethecut-offconditionofthein-phasesupermodefortaperedMCFs.

简介：Polystyrene(PS)fiberswithcore-shellstructureswerefabricatedbycoaxialelectrostaticspinning,[10_TD$IF]inwhichthereareliquidepoxyorcuringagentasthecoreandPSastheshell.Scanningelectronmicroscopy(SEM),Fouriertransforminfrared(FTIR)spectraandopticalmicroscopewereutilizedforcharacteringthemorphologyandcompositionofthefibers.Compositecoatingsembeddedwiththehealant-loadedcoreshellfibershavebeenpreparedandtheself-healingofthescratchonthecoatingshasbeenrevealed.

简介：Wereviewtheuseofhollow-corephotoniccrystalfibre(HC-PCF)forhighpowerlaserbeamdelivery.AcomparisonofbandgapHC-PCFwithKagome-latticeHC-PCFonthegeometry,guidancemechanism,andopticalpropertiesshowsthattheKagome-typeHC-PCFisanidealhostforhighpowerlaserbeamtransportationbecauseofitslargecoresize,lowattenuation,broadbandtransmission,single-modeguidance,lowdispersionandtheultra-lowopticaloverlapbetweenthecore-guidedmodesandthesilicacore-surround.ThepowerhandlingcapabilityofKagome-typeHC-PCFisfurtherexperimentallydemonstratedbymillijoulenanosecondlasersparkignitionand~100μJsub-picosecondlaserpulsetransportationandcompression.

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：Wepresentapolarization-maintainingPANDAring-corefiber（PM-PRCF）characterizedbythecombinationofaring-corestructurewithtwostress-applyingrods.Thisspecialfiberdesignseparatestheadjacentmodesandavoidsthecutoffofthehigher-ordermodes,whichisacommonprobleminellipticalcorepolarization-maintainingfew-modefibers.Usingahigh-contrastindexringandstress-inducedbirefringence,thePM-PRCFfeaturessupportfor10vectormodes,witheffectiverefractiveindexseparationsfromtheiradjacentmodes>10-4.Broadbandperformanceisinvestigatedsubsequentlyoverawidewavelengthrangefrom1500to1630nm.Theproposedfiberistargetedatapplicationsinspace-divisionmultiplexingwhileeliminatingthecomplexmultiple-inputmultiple-outputsignalprocessing.

简介：Weproposeanddemonstrateataperedhollowannularcorefiber(HACF)couplerforexcitationofwhisperinggallerymodes(WGMs)ofanembeddedmicrosphereresonator.ThecouplerissimplyfabricatedbyfusionsplicingofasegmentofHACFwiththesingle-modefiber(SMF),andthenimprovedbytaperingthesplicingjointtoreducethecone-apexangle.Therefore,thecouplingefficiencyfromtheSMFtotheHACFisenhancedtoexcitevariousWGMsviaevanescentfieldcoupling.Normalpositive,negativesymmetricalLorentzianandasymmetricFanolineshapescanbeobtainedbyvaryingtheresonatorsizeandlocation.AnotherinterestingphenomenonisobservedthatahigherQ-factormodeinalowerQ-factormodehasacontrastashighas58.Temperaturesensingwithgoodstabilityisalsodemonstrated.ThisembeddedWGMmicrosphereresonatorinthetaperedHACFisexpectedtopromoteenvironmentaladaptabilityinpracticalapplicationsduetoitssimplicityandrobustness.