简介：ItisshownthatananomalyofthespectrumtakesplaceintheinterferencefieldwhenYoung'sdouble-slitinterferenceexperimentisilluminatedbyspatiallycoherentpolychromaticlight.Specifically,drasticspectralchanges(i.e.thespectralshiftsexhibitarapidtransition)occurinthevicinityofthedarkfringes.Thepotentialapplicationsofthisspectralanomalyarealsoconsidered.

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简介：DarkMatterParticleExplorer(DAMPE)isapowerfulspacetelescopeforhighenergycosmicraysdetectionsuchas-ray,electronandheavyions.ThemainmotivationofDAMPEistofindtheevidenceofdarkmatterexistence,andthesatelliteisscheduledforlaunchingbeforetheendof2015.ThePlasticScintillatorDetector(PSD),whichisoneofthekeycomponentsoftheDAMPEsystem,hastwomajorfunctionalities:distinguishphotonsfromchargedparticlesbyanti-coincidenceandmeasurethechargeofheavyions.ThePSDisdesignedandfabricatedbytheinstituteofmodernphysics,CAS.Itconsistsof82plasticscintillatorstrips,eachofwhichisreadoutbyPMTatbothends,andadouble-dynodereadoutschemeforPMTisutilizedinordertocoverthelargedynamicrange(fromHtoCa).

简介：Wehavefoundthattheexcitedenergyfromthegroundstatewith1f7=2configurationtothefirstexcitedstatewith2p3=2configurationin37SisobviouslylowercomparedwiththatinnearbyN=21isotones35Si,39Arand41Ca(seeFig.1,Theinsertindicatestherelevantsingle-particleorbitsofprotonandneutron).ThisinterestingphenomenonmayresultfromthecollapseofN=28closure,whichgivesthesufficientvalencespaceforcollectivedeformationwhichcanbeenrevealedfromtheB(E2)value.Therefore,toobtaintheB(E2),weperformtheexperimentsformeasuringthelifetimeofthefirstexcitedstatein37S.

简介：Theoptimizationdesignofthepowersystemisessentialforstratosphericairshipswithparadoxicalrequirementsofhighreliabilityandlowweight.Themethodologyoforthogonalexperimentispresentedtodealwiththeproblemoftheoptimizationdesignoftheairship’spowersystem.Mathematicalmodelsofthesolararray,regenerativefuelcell,andpowermanagementsubsystem(PMS)arepresented.Thebasictheoryofthemethodoforthogonalexperimentisdiscussed,andtheselectionoffactorsandlevelsoftheexperimentandthechoiceoftheevaluationfunctionarealsorevealed.TheproposedmethodologyisvalidatedintheoptimizationdesignofthepowersystemoftheZhiYuan-2stratosphericairship.Resultsshowthattheoptimalconfigurationiseasilyobtainedthroughthismethodology.Furthermore,theoptimalconfigurationandthreesub-optimalconfigurationsareintheParetofrontierofthedesignspace.Sensitivityanalysesfortheweightandreliabilityoftheairship’spowersystemarepresented.

简介：Thispaperreportstheexperimentsofevaporationstudyin6mminnercopperdiametertubesusingHFC-134a,HCFC-22andCFC-12asworkingfluid.Theresultsshowthattheevaporationheattransfercofeeicientincreasesewiththedecreasingofinnerdiameteroftubes,AnewconceptofnondimensionaltubediameterUisproposedinthispaperforcorrectionoftheinfluenceofthetubediameterontheevaporationheattransfercoefficient.Andfurther,aconveinentempiricalcorrectionmethodispreseted.

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简介：Lithiumsulfurbattery(LSB)offersseveraladvantagessuchasveryhighenergydensity,low-cost,andenvironmental-friendliness.However,itsuffersfromseriousdegradationofitsreversiblecapacitybecauseofthedissolutionofreactionintermediates,lithiumpolysulfides,intotheelectrolyte.Tosolvethislimitation,therearemanystudiesusinggraphene-basedmaterialsduetotheirexcellentmechanicalstrengthandhighconductivity.Comparedwithgraphene,grapheneoxide(GO)containsvariousoxygenfunctionalgroups,whichenhancethereactionwithlithiumpolysulfides.Here,weinvestigatedthepositiveeffectofusingGOmixedwithcarbonblackontheperformanceofcathodeinLSB.WehaveobservedasmallerdropofcapacityinGOmixedsulfurcathode.Wefurtherdemonstratethatthemechanisticoriginofreversibilityimprovement,asconfirmedthroughCVandRamanspectra,canbeexplainedbythestabilizationofsulfurinlithiumpolysulfideintermediatesbyoxygenfunctionalgroupsofGOtopreventdissolution.Ourfindingssuggestthattheuseofgrapheneoxide-basedcathodeisapromisingroutetosignificantlyimprovethereversibilityofcurrentLSB.

简介：Thecombustionperformanceoftheboilerlargelydependsonthecoaltype.Lotsofexperimentalresearchshowsthatdifferentfuelshavedifferentcombustioncharacteristics.ItisobviousthatfuelwillchangethewholeoperatingperformanceofCirculatingFluidizedBedCombustion(CFBC).Weknoweveninapilot-scalerunningboiler,themeasurementofsomeparametersisdifficultandcostly.Therefore,wedevelopedthewayofsimulationtoevaluatethecombustionperformanceofChinesecoalsinCFB,Thesimulationresultsshowthat,differentcoalswillresultindifferentcoalparticlediameterandcominutiondependingontheirmineralcomponentandthechangewillaffectthedistributionofashinCFBCsystem.Inaword.thecomputationalresultsareinaccordancewithexperimentalresultsqualitativelybuttherearesomedifferencesquantitatively.

简介：在吝啬地的三地点的BoseHubbard模型以内，偶极的bosonic气体与的通道动力学一周期性地，散布的s波浪的调整被调查。系统经历通道(CDT)的协调破坏转移在下邻居偶极子偶极子相互作用，所在地的相互作用和散布的调制s波浪之中源于相关效果的复杂、富有的协调通道(CT)。特别地，为产生CT(CDT)散布的调制s波浪的区域是最宽(最狭窄)什么时候所在地的相互作用和下邻居偶极子偶极子相互作用一些相关与通道精力和系统的相互作用精力有关仔细珍视，它是。为出现CDT的相关的值能理论上从通道精力和系统的相互作用精力被获得。

简介：Vanadiumalloys(V-Cr-Tiseries)areimportantcandidatematerialsforblanketcomponentsoffusionreactorsduetotheirlowactivationandhighstrengthatelevatedtemperatures.Low-temperatureirradiationembrittlementdeterminestheoperationtemperaturelimitofVanadiumalloysfortheapplicationtostructuralmaterialsoffusionreactorsirradiationresponseofvanadiumalloysneedstobeclarifiedfortheirapplication.Inthepresentstudy,specimensoftwoalloys(V-4Cr-4TiandV-5Cr-5Ti)wereirradiatedwithenergeticHeionsandheavyionstounderstandhardeningofthealloysduetoheliumaccumulationandcascadedamageproduction.

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简介：ByapplyinghigherpowersoftheBogoliubovtransformationoperatorb^t=u^*a+μ^*a^ttothetwo-photoncoherentstates(orminimumuncertaintysqueezedstates)weconstructanewtypeofquantumstatewhichwecallthegeneralizedexcitedtwo-photoncoherentstates.Analyticexpressionsforthequantumstatisticalpropertiesarederived,andthroughnumericalcomputationthephasespacequasi-probabilitydistributionsarefound.Thesestatescanexhibithighlynonclassicalbehaviourdependingonthedegreeofexcitationmandotherparameters.ForparticularvaluesoftwoparametersAandp,thesegeneralizedstatesreducetootherclassesofcoherentstatesformerlyreported.Ourtheorythuspresentsamuchbroaderapproachtothesetypesofquantumstates.

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