简介：Ascanningnear-fieldopticalmicroscopeusinguncoatedfibertipisdescribed,whichcanworkintransmissionandreflectionconfigurations,bothcapableofworkinginilluminationandcollection-mode,sothateithertransparentoropaquesamplecanbeinvestigated.Dependingondifferentapplications,eitherconstant-gaporconstant-heightimagescanbeachieved.Acompacthomemadetranslatorpermitstoselectinterestedareaofsampleintherangeof4mm×4mm.Workingintheconstant-heightaswellastransmissionandcollection-modeconfiguration,severalkindsofsamplessuchasholographicgrating,liposomeandzeolitewereinvestigated.TheexperimentalresultsrevealedthedependenceoftheopticalresolutionoftheSNOMonthetip-sampleseparation.

简介：Remote-modemicrospherenanoscopecanobservethenano-structureswith23nmfeaturesize.Itdoesnotrequiresamplepreparationandfunctionsinbothambientairandliquidenvironments.ComparedwiththescientificcharacterizationtoolslistedinTableS1,thesimpleandportablenaturemakesthemicrospherenanoscopeafavorablesolutionforgeneralpurposeimaginginpracticalfields,likehospitals,foodindustry,semiconductorproductionlines,schoolsandenvironmentagencies.

简介：Atomicforcemicroscope(AFM)isabletoproducethree-dimensionaldigitaldatainbothforcemodeandheight-modeanditsapplicationsarenotlimitedtomapthesurfacesofconductingmaterials.Itcanusetheforce-modetoimagetherepulsiveandattractiveforcepatterns.ThecrosssectionsofpolycrystallineCdS/CdTeandamorphoussiliconheterojunctionsolarcellsareobservedwithAFM.Incaseofshortcircuit,themicrostructuresofdifferentlayersinthesamplesareclearlydisplayed.Whenthecellsareopencircuit,thetopographicalimagesarealtered,thepotentialoutlineduetothespacechargeinjunctionregionisobserved.Obviously,AFMcanbeemployedtoinvestigateexperimentallybuilt-inpotentialinjunctionofsemiconductordevices,suchassolarcells.

简介：Thequantumtheoryapplicationisahotresearchareainrecentyears,especiallythetheoryofquantummechanics.Inthispaper,wefocusontheresearchofimagesegmentationbasedonquantummechanics.Firstly,thetheoryofquantummechanicsisintroduced;afterwards,areviewofimagesegmentationmethodsbasedonquantummechanicsispresented;andfinally,thecharacteristicsaboutthequantummechanicsappliedtoimageprocessingareconcluded.Twomainresearchtopicsarediscussedinthispaper.Oneistoemphasizethatquantummechanicscanbeappliedindifferentresearchareas,suchasimagesegmentation,andthesecondistoconcludesomemethodsinimagesegmentationandgivesomesuggestionsforpossiblenovelmethodsbyapplyingquantummechanicstheory.Asasummary,thisisareviewpaperwhichpresentssomemethodsbasedonthefeasibletheoryinquantummechanicsaimingatachievingabetterperformanceinimagesegmentation.

简介：通过实验设计和理论分析，三种技术使用了性质描绘二光子的吸收(TPA)，例如非线性的传播实验和理论，Z扫描技术和二光子的导致的荧光方法，被介绍。是utilizable的三个实验的性质并且在理想的限制下面可实现简单地被分析。为TPA描述的大小的优点也被分析。

简介：Theeffectofsystemmismatchesonanadaptivelinearconstrainedgeneralizedsidelobecanceller(LC-GSC)isdiscussedinthispaper.Basedonthearraygainindex,twoclassicsystemmismatches,thedirectionofarrival(DOA)mismatchandthemismatchesarisingfromarraydisturbance,arestudied,respectively.Toobtaintheeffectivemethodsforcompensatingforthesystemmismatches,weanalyzetheperformanceoftheimprovedLC-GSCwiththediagonalloadingandadditionalconstraints(suchasthedirectionalconstraintsandderivativeconstraints).Thecomputersimulationsshowthatthetechniquesofdiagonalloadingandadditionalconstraintscaneffectivelycompensateforthesystemmismatches.Thelossofarraygainscanbecontrolledwithin3dBinthepresenceof20%ofarraydisturbancesorDOAmismatchwhenthesignal-to-noiseratioislessthan10dB.Theanalysisillustratesthattheproposedcompensationmethodsarevalidandfeasible.

简介：Twomethodsforimprovingtheequidrivingpower-frequencycharacteristicsofbroad-bandhighpowerklystronsarepresented.Oneisthatacomb-linebandpassfilterwithsomeattenuationpropertiesisinsertedbetweentheTWTdriverandtheklystronforcompensatingthegain-frequencycharacteristicsoftheklystrontogettherequiredequidrivingpower-frequencycharacteristics.Theotheristhatareactiveelementisconnectedwiththeinputcavitytochangeitsresonancefrequenciesf0andQL,andthustoimprovethepower-frequencycharacteristicsoftheklystron.

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简介：Aclassofmodifiedparallelcombinedmethodsofreal-timenumericalsimulationarepresentedforastiffdynamicsystem.Bycombiningtheparallelismacrossthesystemwiththeparallelismacrossthemethod,andrelaxingthedependenceofstagevaluecomputationonsamplingtimeofinputfunction,aclassofmodifiedreal-timeparallelcombinedmethodsareconstructed.StiffandnonstiffsubsystemsaresolvedinparallelonaparallelcomputerbyaparallelRosenbrockmethodandaparallelRKmethod,respectively.Theirorderconditionsandconvergencesarediscussed.Thenumericalsimulationexperimentsshowthatthisclassofmodifiedalgorithmscangethighspeedandefficiency.

简介：Themeanshifttrackerhasdifficultyintrackingfastmovingtargetsandsuffersfromtrackingerroraccumulationproblem.Toovercomethelimitationsofthemeanshiftmethod,anewapproachisproposedbyintegratingthemeanshiftalgorithmandframe-differencemethods.Theroughpositionofthemovingtargetisfirstlocatedbythedirectframe-differencealgorithmandthree-frame-differencealgorithmfortheimmobilecamerascenesandmobilecamerascenes,respectively.Then,themeanshiftalgorithmisusedtoachieveprecisetrackingofthetarget.Severaltrackingexperimentsshowthattheproposedmethodcaneffectivelytrackfirstmovingtargetsandovercomethetrackingerroraccumulationproblem.

简介：分别地，搬运器官的轻射出的设备(OLED)的层(HTL)的洞被真空免职和旋转涂层方法处理在哪儿N，N鈥?biphenyl-N，N鈥?二度(3-methylphenyl)-1,1鈥?biphenyl-4,4鈥?diamine(TPD)并且(vinylcarbazole)(PVK)poly充当了洞运输材料。Tris-(8-hydroxyquinoline)铝(Alq3)作为搬运层的轻射出的层和电子被利用。设备房间的基本结构是：indium-tin-oxide(ITO)/PVK：TPD/Alq3/Mg:Ag。设备的electroluminescent(EL)特征被描绘。结果证明EL系列的山峰在530nm被定位，它遵循了Alq3的描绘的光谱。与使用真空免职方法相比，有直到26135cd/m2的最大的发光性的绿排放能被用纺纱涂层技术选择合适的溶剂在15V的开车电压完成，并且它的最大的发光性效率是在5.5V的开车电压的2.56lm/W。CLC数字TN383+.1这个工程被部水平资助和UESTC的年轻优越工程赞助(资助号码：UESTC-2006206）

简介：Themixedl1/H2optimizationproblemforMIMO(multipleinput-multipleoutput)discrete-timesystemsisconsidered.Thisproblemisformulatedasminimizingthel1-normofaclosed-looptransfermatrixwhilemaintainingtheH2-normofanotherclosed-looptransfermatrixatprescribedlevel.ThecontinuitypropertyoftheoptimalvalueinrespecttochangesintheH2-normconstraintisstudied.Theexistenceoftheoptimalsolutionsofmixedll/H2problemisproved.Becausethesolutionofthemixedl1/H2problemisbasedonthescaled-Qmethod,itavoidsthezerointerpolationdifficulties.Theconvergentupperandlowerboundscanbeobtainedbysolvingasequenceoffinitedimensionalnonlinearprogrammingforwhichmanyefficientnumericaloptimizationalgorithmsexist.