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简介：Thispaperprovesthattheoptimalquadratureformulasoftype（r1,…rn）forWm1isunique,andtheextremalfunctionischaracterizedbyitsoscillatoryproperty.Ontheotherhand,thefundamentaltheoremofalgebraforperiodicmonosplineswithoddmultiplicitiesissolvcd

简介：Twoschemesforteleportinganunknownone-particlestateareproposedwhenageneralWstateisutilizedasquantumchannel.Inthefirstscheme,afterthesender(Alice)makesaBell-statemeasurementonherparticles,therecipient(Bob)performsaVonNeumannmeasurementandintroducesanauxiliaryparticle,andcarriesoutaunitarytransformationonhisparticleandtheauxiliaryparticle,andperformsaVonNeumannmeasurementontheauxiliaryparticletoconfirmwhethertheteleportationsucceedsornot.Inthesecondscheme,therecipient(Bob)doesnotneedtoperformthefirstVonNeumannmeasurementorintroducetheauxiliaryparticle,whichisnecessaryinthefirstscheme.Itisshownthatthemaximalprobabilitiesofsuccessfulteleportationofthetwoschemesareidenticaliftherecipient(Bob)performsanappropriateunitarytransformationandadoptsaproperparticleonwhichherecoversthequantuminformationofstatetobeteleported.

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简介：Parametersforthe3W1sourceatBSRFweredeterminedinboththededicatedandparasiticmodeandtheirsuitabilityforproteincrystallographybeamlineatBSRFwererealized.Itisdiscussedthatthephysicsmotivationandthedesignofthe3W1iscomparedwithsimilarexperimentalstationsattheBrazilianLightSourec(1.37Gev)andMax-IIinSweden(1.5GeV).Thephotonfluxfromthe3W1sourcdisabout2×10^11photon/smAinthewavelengthrangeof2.0-0.9Ainparasiticmodeand50-80timeshigherinthededicatedmode.Boththededicatedandparasiticmodesaresuitableformacromolecularstructureexperiments.2001ElsevierScienceB.V.Allrightsreserved.

简介：WehavedepositedW/Simultilayermirrorsusingthemagnetronsputteringunderthelowsputteringpressureandthehighmagneticfieldstrength,andmeasuredtheirreflectivtityinBeijingsynchrotronradiationfaciltiy,W/Simultilayershowthepeakreflectivityofapproximately10%ataphotonenergyof1200eVand10.5%ataphotoenergyof700eVrespectivelyattheincidenceangleof81°。

简介：Inthispaper,weinvestigateperfectquantumteleportationanddensecodingbyusingan2N-qubitWstatechannel.Inthequantumteleportationscheme,anunknownN-qubitentangledstatecanbeperfectlyteleported.Oneebitofentanglementandtwobitsofclassicalcommunicationareconsumedintheteleportationprocess,justlikewhenusingtheBellstatechannel.WhileN+1bitsofclassicalinformationcanbetransmittedbyonlysendingNparticlesinthedensecodingprotocol.

简介：Amethodtopreparemulti-particleentanglementofGreenberger-Horne-Zeilinger-typeandW-typeisproposedthroughtheinteractionbetweenthecavityandmanyatomssimultaneously.Aftersuitableinteraction,theselectedmeasurementsonthecavityfieldcancreatetheentangledatomicstates.Theseentangledstatescanbeusefulforquantuminformationmanipulationandfundamentalstudyofquantumtheory.ThesestatesthatviolatetheBell'sinequalityareproven.

简介：紧缩的diode-side-pumpedTm:钇铝柘榴石激光被介绍，它能在2.02mm输出cw力量的51W。Tm:钇铝柘榴石杆是九个二极管数组在25degC与783nm的中央波长和大约2.5nm的with带宽抽的方面。减少热效果在上结束并且有效地驱散热，一合成Tm:有undoped钇铝柘榴石结束的钇铝柘榴石杆盖住，螺丝钉在杆的方面表面上穿被用作激光水晶。2.02公里激光产量的最大的optical-to-optical变换效率是14.2%，与26.8%的斜坡效率。[从作者抽象]

简介：WithTi(OBu)4asprecursor,andHAcascomplexingagent,pureandW-dopedTiO2gelatinswerepreparedbyasol-gelmethod.Duringtheprocessofgelformation,metalionsweredispersedintheporousTiO2matrix.Then,powdersofnano-TiO2andW-dopednano-TiO2werepreparedbydrying,grindingandheattreatmentatdifferenttemperatures.Thegrainsizeandstructureofthesamples,pureTiO2andW-doped,andtreatedatdifferenttemperatures,werestudiedbyX-raydiffraction(XRD),BeckmanCoulterSorptionAnalysisandTEM.Resultsshowedthat,withincreasingtemperature,theTiO2transformedfromanatasetorutileandthegrainsizeincreased.ThistransformationandgraingrowthofTiO2couldberetardedbydopingwithW.

简介：UsingthemethodofGirsanovtransformation,weestablishtheTalagrand'sT2-inequalityfordiffusiononthepathspaceC([0,N],R^d)withrespecttoauniformmetric,withtheconstantindependentofN.ThisimprovestheknownresultsfortheL2-metric.

简介：CO2methanationhasbeenahottopicbecauseofitsimportantapplicationinthespacecraftandpotentialutilizationofcarbondioxide.Nickelcatalystisactiveforthisreaction.However,itsactivitystillneedstobeimproved.Dielectricbarrierdischarge(DBD)plasma,initiatedatambientconditionandoperatedat~150°C,hasbeenemployedinthisworkfordecompositionofnickelprecursortoprepareNi/MgAl2O4.Theplasmadecompositionresultsinhighdispersion,uniquestructure,enhancedreducibilityofNiparticlesandpromotedcatalyst-supportinteraction.AnimprovedactivityofCO2methanationwithahigheryieldofmethanehasbeenachievedovertheplasmadecomposedcatalyst,comparedtothecatalystpreparedthermally.Forexample,themethaneyieldoftheplasmapreparedcatalystis71.8%at300°Cbutitis62.9%overthethermalpreparedcatalyst.ThecatalystcharacterizationconfirmedthatCO2methanationovertheDBDplasmapreparedcatalystfollowspathwayofCOmethanation.

简介：在实线性锥距离空间中给出锥、W-距离的概念及一些性质．由此在实线性锥距离空间中建立了压缩型和扩张型两类不动点定理，其中压缩条件和扩张条件中均含有锥W-距离．

简介：LetGbealocallycompactAbeliangroupwithHaarmeasure.TheauthorsdiscusssomebasicpropertiesofL_(w_1)~r(G)∩L(p,q,w_2dμ)(G)spaces.ThenthenecessaryconditionsforcompactembeddingsofthespacesL_(w_1)~r(R~d)∩L(p,q,w_2dμ)(R~d)areshowed.

简介：摘要近期220kV系统中发生了几起液压开关线圈烧毁事故，对系统造成很大的危害，本文详细的讲解了实际运行中的一起液压开关线圈烧毁事故，并就事故进行了分析并提出了对策。

简介：我们在场为在洞量electrodynamics的三水平的系统的n-qubitW状态的概率的产生的一个简单计划。一旦W状态被准备，它将由于三水平的原子的二个仅仅退化地面状态被包含的事实对原子的自发的排放感觉迟钝。与系统的时间进化，成功概率和试验性的可行性也被讨论。

简介：二极管泵浦高平均功率固体激光器在工业、科研和军事等领域具有非常广泛的应用。光学泵浦将在固体激光介质里产生废热并引起介质温度升高。激光器的连续运转要求实时冷却以消除废热。由于固体激光介质的热导率通常较低，因此在激光介质内部和冷却表面之间将产生显著的温度梯度，这就导致了折射率梯度、机械应力和退偏等效应，进而降低光束质量，减小输出功率，甚至造成介质的断裂。这些效应是固体激光器向高平均功率定标的最大挑战。采用薄片激光介质是解决这一问题的有效手段之一。

简介：Anewspectralproblemisproposed,andnonlineardifferentialequationsofthecorrespondinghierarchyareobtained.Withthehelpofthenonlinearizationapproachofeigenvalueproblems,anewfinite-dimensionalHamiltoniansystemonR2nisobtained.Ageneratingfunctionapproachisintroducedtoprovetheinvolutionofconservedintegralsanditsfunctionalindependence,andtheHamiltonianflowsarestraightenedbyintroducingtheAbel-Jacobicoordinates.Atlast,basedontheprinciplesofalgebracurve,thequasi-periodicsolutionsforthecorrespondingequationsareobtainedbysolvingtheordinarydifferentialequationsandinversingtheAbel-Jacobicoordinates.

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简介：Let0