简介：我们与J(PC)=0(++)在bar'状态上在酒吧(q)上学习Qq(Q)的群众，1(++)，1(+-)并且2(++)在chiral苏(3)夸克模型，在Q是重夸克(c或b)，q(q')是轻夸克(u，d或s)的地方。根据我们的数字结果，做解释是不可能的[在在酒吧上的酒吧(n)上的cn(c)](1++)并且[在在酒吧上的酒吧(n)上的cn(c)](2++)(n=u，d)分别地作为X(3872)和Y(3940)说。然而，它对在在在bar'系统上的工具条(q)上的bq(b)的lindthetetraquarks有趣。

简介：Asymmetrictree-likebranchednetworksareexploredbygeometricalgorithms.Basedonthenetwork,ananalysisofthethermalconductivityispresented.Therelationshipbetweeneffectivethermalconductivityandgeometricstructuresisobtainedbyusingthethermal-electricalanalogytechnique.Inallstudiedcases,aclearbehaviourisobserved,whereangle(δ,θ)amongparentbranchingextendedlines,branchesandparameterofthegeometricstructureshavestrongereffectsontheeffectivethermalconductivity.Whentheangleδisfixed,theopticaldiameterratioβisdependentonangleθ.Moreover,γandmarenotrelatedtoβ.Thelongerthebranchis,thesmallertheeffectivethermalconductivitywillbe.Itisalsofoundthatwhentheangleθ<δ/2,thehighertheiterationmis,thelowerthethermalconductivitywillbeandittendstozero,otherwise,itisbiggerthanzero.Whenthediameterratioβ1<0.707andangleδisbigger,theoptimalkoftheperfectratioincreaseswiththeincreaseoftheangleδ;whenβ1>0.707,theoptimalkdecreases.Inaddition,theeffectivethermalconductivityisalwayslessthanthatofsinglechannelmaterial.Thepresentresultsalsoshowthattheeffectivethermalconductivityoftheasymmetrictree-likebranchednetworksdoesnotobeyMurray'slaw.

简介：在实验数据的处理中，估算间接测得量的误差时，经常引用加减运算、乘除运算的代数误差公式。但是，代数误差公式并不是普遍适用的。本文证明，代数误差公式适用的充分条件是取误差的各量相互独立。

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简介：Slowlight,atechnologytocontroltheopticalsignalbyreducingthegroupvelocity,hasbeenwidelystudiedtoobtainenhancednonlinearitiesandincreasedphaseshiftsowingtoitspromotingofthelight–matterinteractionability.Inthiswork,awidebandslowlightisachievedinasimpleone-dimensionalfishbonegratingwaveguide.Aflatbandindicatingslowlightwithagroupindexof13andbandwidthover10nmisobtainedbytheplanewaveexpansioncalculation,andthecorrespondingexperimentalresultsagreewellwiththetheoreticalprediction.Asteptaperisdesignedtocompensatethecouplingloss.Theproposedfishbonegratingwaveguideisagoodcandidateforwidebandslowlightdevicesinlightcommunication.

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简介：Anovelbirdnest-likenanostructuredMnO2(BNNS-MnO2)waspreparedbyafacileandcost-effectivestrategy.Theirstructuresandmorphologieswerecharacterizedbyfieldemissionscanningelectronmicroscopy,transmissionelectronmicroscopyandpowderX-raydiffraction.Capacitivebehaviorswereinvestigatedbycyclicvoltammetryandgalvanostaticcharge-discharge.Theobtainednano-MnO2possessesawelldesignedloose-assembledhierarchicalnanoarchitecturewithanappropriatecrystallinitywhichgivesrisetoexcellentperformancesasanelectrodematerialforsupercapacitors.Amaximumspecificcapacitanceof917F/ghasbeenobtainedatacurrentdensityof5mA/cm2in6mol/LKOHaqueoussolution,andaspecificcapacitanceof210F/ghasbeenmaintainedfor500cycles.AsthelowcostofMnSO4andKCr2O7andthelowreactiontemperature,thepresentmethodavoidstherequirementsforcomplicatedoperations,time/energy-consumingandexpensivereagents,andperhapsisreadyfortheindustrializationofnano-MnO2production.

简介：Abarcode-likewaveguidenanostructurewithdiscretizedmultilevelpixellinesisdesignedandoptimizedbyanonlinearsearchalgorithm.Weobtainthedesignofaone-dimensionalmultilevelnanostructurewith-1.04dBefficiencyforsurfacenormalcouplingtoastandardsingle-modefiber.Anotherdesignisachievedfromtheautomaticoptimizationprocess,whichenablespolarization-independentcouplingtoasingle-modefiber.Theoptimumcouplingefficiencyissimulatedtobe-2.83dBforTEand-3.49forTMpolarizationcenterednearthe1550nmwavelength.Polarization-dependentlossoflessthan1dBover45.3nmisachieved.

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简介：在小世界网络基于我们的以前联合脉搏的integrate-and-Gre神经原模型，我们在这个模型生产的象electroencephalographic一样信号的复杂行为上调查不同连接拓扑学的效果。我们证明若干次，经常是的系列分析方法使用了分析electroencephalographic-likesignals的复杂行为，例如在重新可伸缩的范围分析(R/S)以内的阶段空间，关联尺寸，分数维的尺寸，和林中小丘代表的重建。我们发现不同连接拓扑学在integrate-and-fire神经原的模型导致不同动态行为。

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简介：估计在像钻石的碳(DLC)的sp(3)的内容拍摄的一个新实验模型被介绍，基于为不同的碳的488nm或514nmvisible光激动的传统的拉曼系列。G山峰的带宽与thesp(3)有关是部分，这被发现。G山峰的更宽的带宽在DLC电影显示出更高的sp(3)部分。

简介：我们报导nxn“在n的情况中的像连贯的州的解决方案，n”=1,2，...为包括二的系统，相关库仑的离子与一个时间依赖者泛音潜力在一个维的Paultrap限制了。n之一“centre-of-massmotion的准确答案描述一个概括协调状态。为小开车力量，相对运动的napproximatesolutions被构造，它在古典平衡位置附近描述twoions的协调摆动。

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简介：AKondo-likeeffect,namely,theupturnofresistivityatlowtemperatures,isobservedinperovskitemanganitewhennonmagneticinsulatorsaredopedassecondaryphase.Inthispaper,thelow-temperatureresistivityupturneffecthasbeenarguedtooriginatefrominterfacialmagneticphasereconstruction.HeisenbergspinlatticeshavebeensimulatedusingtheMonteCarlomethodtorevealphasecompetitionaroundsecondaryphaseboundary,namely,manganite-insulatorboundarythatbehaveswithaweakantiferromagnetictendency.Moreover,theresistornetworkmodelbasedondouble-exchangeconductivemechanismreproducesthelow-temperatureresistivityupturneffect.Ourworkprovidesareasonablephysicalmechanismtounderstandthenoveltransportbehaviorsinmicrostructuresofcorrelatedelectronsystems.

简介：Thepolarizationevolutionofvectorbeams(VBs)generatedbyq-platesisinvestigatedtheoreticallyandexperimentally.AnanalyticalmodelisdevelopedfortheVBcreatedbyageneralquarter-waveq-platebasedonvectordiffractiontheory.ItisfoundthatthepolarizationdistributionofVBsvarieswithpositionandthevalueq.Inparticular,fortheincidenceofcircularpolarization,theexitvectorvortexbeamhaspolarizationstatesthatcoverthewholesurfaceofthePoincarésphere,therebyconstitutingafullPoincarébeam.Fortheincidenceoflinearpolarization,theVBisnotcylindricalbutspecularlysymmetric,andexhibitsanazimuthalspinsplitting.Theseresultsareinsharpcontrastwiththosederivedbythecommonlyusedmodel,i.e.,regardingtheincidentlightasaplanewave.Byimplementingq-plateswithdielectricmetasurfaces,furtherexperimentsvalidatethetheoreticalresults.

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简介：Wereportonthetransmissionspectraofasausage-likemicroresonator(SLM)inaqueousenvironment,whereafibertaperisusedasalightcoupler.ThetransmissionspectrashowaninterestingdependenceonthecouplingpositionbetweentheSLMandthefibertaper.WhentheSLMismovedalongthefibertaper,thelineshapecanevolveperiodicallyamongsymmetricdips,asymmetricFano-likeresonancelineshapes,andsymmetricpeaks.Acoupled-modetheorywithfeedbackisdevelopedtoexplaintheobservation.TheobservationofFano-likeresonanceinaqueousenvironmentholdsgreatpotentialinbiochemicalsensing.