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。

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简介：Supernova(SN)neutrinosdetectedontheEartharesubjecttotheshockwaveeffects,theMikheyev–Smirnov–Wolfenstein(MSW)effects,theneutrinocollectiveeffectsandtheEarthmattereffects.Consideringtherecentexperimentalresultaboutthelargemixingangleθ13(■8.8°)providedbytheDayaBayCollaborationandapplyingtheavailableknowledgefortheneutrinoconversionprobabilityinthehighresonanceregionofSN,PH,whichisintheformofhypergeometricfunctioninthecaseoflargeθ13,wededucetheexpressionofPHtakingintoaccounttheshockwaveeffects.ItisfoundthatPHisnotzeroinacertainrangeoftimeduetotheshockwaveeffects.Afterconsideringallthefourphysicaleffectsandscanningrelevantparameters,wecalculatetheeventnumbersofSNneutrinosforthe"Garching"distributionofneutrinoenergyspectrum.Fromthenumericalresults,itisfoundthatthebehaviorsofneutrinoeventnumbersdetectedontheEarthdependontheneutrinomasshierarchyandneutrinospectrumparametersincludingthedimensionlesspinchingparameterβα(whereαreferstoneutrinoflavor),theaverageenergy,andtheSNneutrinoluminositiesLα.Finally,wegivetherangesofSNneutrinoeventnumbersthatwillbedetectedattheDayaBayexperiment.

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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：IntheBigBangtheory,primordialnucleosynthesiswasfinishedduringfirsthalfhouroftheuniverse’sexistence.Thisprocessyieldedthemainlightelementsincludinghydrogen,deuterium,heliumandlithium.Thetheoreticalpredictionsmatchverywelltheobserveddeuteriumandheliumabundance,butthe7Liabundanceisoverpredictedbyafactorathree[1].Thisinconsistencyiscalled“cosmologicallithiumproblem”.Inthepastdecade,manyattemptstosolvethisproblemusingconventionalastrophysicsandnuclearphysicsfailed.Recently,weproposedanewsolutiontolithiumproblembyintroducingnon-extensivestatisticsintoBigBangnucleosynthesis[2].

简介：Anefficientmethodtomountacoupledsilicamicrosphereandtaperedfibersystemisproposedanddemonstratedexperimentally.Forthepurposeofoptomechanicalstudies,high-quality-factoroptical(Q_o～10~8)andmechanicalmodes(Q_m～0.87×10~4)aremaintainedafterthemountingprocess.Forthemountedmicrosphere,thecouplingsystemismorestableandcompactand,thus,isbeneficialforfuturestudiesandapplicationsbasedonoptomechanicalinteractions.Especially,thepackagedoptomechanicalsystem,whichistestedinavacuumchamber,pavesthewaytowardquantumoptomechanicsresearchincryostat.

简介：WithMoS2assaturableabsorber,passiveQ-switchingandQ-switchedmode-lockingoperationsofaTm-dopedcalciumlithiumniobiumgalliumgarnet（Tm:CLNGG）laserwereexperimentallydemonstrated.TheQ-switchedlaseremittedamaximumaverageoutputpowerof62mWandhighestpulseenergyof0.72μJ.Q-switchedmodelockingwasalsoobtainedintheexperiment.TheresearchresultswillopenupapplicationsofMoS2atthemid-infraredwavelength.

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简介：1．对比热容的概念缺乏理解例1由Q=cm（t-t0）可得：c=Q／m（t-t0），关于同一种物质的比热容c．下列说法正确的是（）

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简介：ThispaperreportsthePVTxpropertiesofR22/R152asystemintherangesoftemperaturefrom298.15Kto353.15Kandpressurefrom0.288MPato1.288MPa,SixtysevenPVTxmeasurementsforthreecompositions,i.e.0.2712,0.4094and0.7911molefractionofR22,havebeenmeasuredalong16isotherms.Theuncertaintiesoftemperatureandpressuremeasurementsarelessthan0.01Kand±500Parespectively.ThereliabilityoftheexperimentalmeasurementsisconfirmedbyusingREFPROPprogram,acomputerprogramsuggestedbyMorrisonetal^[4].

简介：Weinvestigatethediffractionoftheguidedmodesofadielectricslabwaveguideonasimpleintegratedstructureconsistingofasingledielectricridgeonthesurfaceofthewaveguide.Numericalsimulationsbasedonaperiodicrigorouscoupled-waveanalysisdemonstratetheexistenceofsharpresonantfeaturesandboundstatesinthecontinuum(BICs)inthereflectanceandtransmittancespectraoccurringattheobliqueincidenceofatransverseelectric(TE)-polarizedguidedmodeontheridge.Usingtheeffectiveindexmethod,weexplaintheresonancesbytheexcitationofcross-polarizedmodesoftheridge.FormationoftheBICsareconfirmedusingatheoreticalmodelbasedoncoupled-wavetheory.ThemodelsuggeststhattheBICsoccurduetothecouplingofquasi-TEandquasi-transverse-magneticmodesofthestructure.SimpleanalyticalexpressionsfortheangleofincidenceandtheridgewidthpredictingthelocationoftheBICsareobtained.Theexistenceofhigh-QresonancesandBICsenablesusingtheconsideredintegratedstructureforsensing,transformationofopticalsignals,andenhancingnonlinearlight–matterinteractions.DuetotheLorentzianlineshapeoftheresonancesneartheBICs,thestructureisalsopromisingforfilteringapplications.