简介：

简介：

简介：

简介：Excitedstates^207Rnareinvestigatedviathe^196Pt(^16O,Sn)^207Rnreactionatbeamenergiesfrom85to95MeVusingtechniquesofin-beamγ-rayspectroscopy.Measurementsofγ-rayexcitationfunction,x-γandγ-γ-tconincidencesareperformedwithtenBGO(AC)HPGedetectors.Basedonthesemeasurements,alevelschemeof^207Rn,including17γ-raysand18levels,isestablished.SpinsformostofthelevelsareproposedaccordingtothemeasuredDCOratios.Thelevelstrucctureiscomparedwithaweak-couplingcalculationusingtheinteractionenergiesextractedfromneighbouringnuclei.

简介：一、excited与exciting都是形容词，并且都是从excite变化而来的。在句子中都可以用作定语或表语，但它们的意思和在句中的用法有差异。excited意为“兴奋的”，一般修饰“人”；而exciting意为“令人兴奋的，使人激动的”，一般修饰

简介：q-p阶段空间分发函数是一个流行工具学习半古典作品物理并且描述一个系统的量方面。在由使用Husimi操作员Δh(q,p；κ)=|p，q〉κ；κ〈p，q|我们推出激动的挤压的真空状态的Husimi功能。然后，我们图形地学习Husimi分发的行为。

简介：

简介：Acomparativestudyoftheneedle-to-liquidplasmainthecontinuousmodewithDCandACexcitationsisdetailedinthispaper.Allplasmasstudiedhereareshowntobeglowdischarges.Thisstudyisbasedonmeasurementsofseveralkeyparameters,includingelectricalenergy,opticalemissionintensitiesofactivespecies,rotationalandvibrationaltemperatures,andtemperaturesoftheneedleandliquidelectrodes.ACplasmascanproduce1.2～5timeshigherexcitedstateactivespeciesthanDCplasmasunderthesamedissipatedpower.ACexcitedliquidplasmashavethehighestenergyutilizationefficiencyamongthethreesystems(ACexcitedplasmas,DCexcitedplasmaswithwateranodeandDCexcitedplasmaswithwatercathode);mostoftheenergyisusedtoproduceusefulspeciesratherthantoheattheelectrodesandplasmas.

简介：这研究试图在极的运动上学习大气、海洋的刺激的影响。电源光谱密度分析大气、海洋的刺激的效率不仅在不同频率而且在retrograde和与其他天体作同方的部件不同的表演，但是大气、海洋的刺激的和与观察刺激显示出最好的协议。

简介：

简介：Theratioofexpectationcrossingsofdielectricelastomerballoonexcitedbyrandompressureisanalyticallyevaluatedinthisletter.TheMooney–RivlinmodelisadoptedtodescribetheconstitutiverelationwhiletherandompressureisdescribedbyGaussianwhitenoise.Throughaspecifictransformation,thestochasticdifferentialequationsforthetotalenergyandphasearederived.Withtheapplicationofthestochasticaveraging,thesystemtotalenergyisthenapproximatedbyaone-dimensionaldiffusionprocess.SolvingtheassociatedFokker–Planck–Kolmogorov(FPK)equationyieldsthestationaryprobabilitydensityofthesystemtotalenergy.Theratioofexpectationcrossingsisthenderivedbasedonthejointstationaryprobabilitydensityofstretchratioanditsratioofchange.TheefficacyandaccuracyoftheproposedprocedureareverifiedbycomparingwiththeresultsfromMonteCarlosimulation(MCS).

简介：

简介：TheenergyradiationprocessofanairgunseismicsourceinlandreservoirisstudiedbasedontheunderwaterwaveletdatacollectedintheairgunexcitationexperimentsinBinchuan,Yunnan,China.Theempiricalformulaforcalculatingthebubblepulsationperiodandthemaximumradiusoftheunderwaterairgunseismicsourceisobtained.Theresultsshowthat:①Theenergyradiationefficiencyishigherverticallythanhorizontally.②Theverticalbubbleenergyradiationefficiencyincreaseswiththeincreaseoftheairsupplypressure.③Theverticalenergyradiationefficiencyoftheairgunseismicsourceis9.4%whentheairsupplypressureis15MPa.④Thehighertheairsupplypressure,thefurtherthepropagatingdistanceofthesuperposition-enhancedpressurewaveofanairgunsource.

简介：

简介：Strongasymmetricalvorticesappearontheleewardofslenderbodyathighanglesofattack,whichhasveryunfavorableeffectonthestabilityandcontroloftheaircraft.Amethodisdevelopedtocontrolthesideforceofslenderbodyathighanglesofattack,andisverifiedinwindtunnel.Athin-filmtriangularself-excitedoscillationflagisfixedatthetipoftheslenderbodymodelwhosesemi-apexangleis10°.Sideforceisapproximatelylinearlyproportionaltoroll-settingangleofself-excitedoscillationflagathighanglesofattack,andtheslopoffittingstraightlineobtainedbytheleastsquaremethodis-0.158.Thelinearrelationshipbetweensideforceandroll-settingangleprovidesconveniencefordevelopingsideforcecontrollawofslenderbodyathighanglesofattack.Experimentaldatashowsthatthesideforcecoefficientsvarylinearlywithroll-settingangleswhenaspecificplasticself-excitedoscillationflagisusedasthecontrolflag.Therangeofsideforcecoefficientandroll-settingangleare,respectively,-3.2to3.0and-20°to20°.Thedeviceissimple,effective,andisofgreatpotentialinengineeringapplication.

简介：Onthebasisofapparentelasticitymethod,wederivedtheequiva-lentcircuitofcouplingvibrationofashortcolumnanddiscusseditsfrequencyequationandtheeffectsoftheloadimpedanceontheresonantfrequencyoftheshortcolumn.Bytheequivalentcircuit,wecalculatedtheinputmechanicalimpedanceofthelongitudinally-excitedshortcolumnandthecurvesoftheap-parentvibrationvelocityratioversusthegeometricaldimensionsofthecolumn.Itshowsthattheequivalentcircuitmethodisasimpleandconvenientonetoanalyzeandcalculatethecouplingvibrationoftheshortcolumn.

简介：Aunifiedtheoryforcalculatingthenoiseradiationofaninfiniteelasticplateexcitedbytheturbulentboundarylayerpressurefluctuationsispresented.Usingthewavenumberfrequencytransferfunctiontodes-cribethewholesystem,consistingoftheplateandtheliquidloading,ageneralexprossionofthecrossspectrumwasderiyed.Itisanintegralinthecomplexwavenumberplaneandleadstoasumoftheresiduesatthepolesoftwotypes.Onepoleintroducedbytheconvectiveridgeofthepressurefluctuationsyieldsadirecttransfercomponent,whichisanevanescentwaveinliquidbecausethepoleliesinthehighwavenumberregion.Theotherpolesintroducedbythetransferfunctionofstructureproducetheradiationfieldcomponentswiththeresonancemodesofaliq-uidloadedplate.ThepolepositionsandtheirresiduescanbecomputedapproximatelybyuseoftheResonanceScatteringTheory.Forthecaseofhydrodynamicnoise,wheretherangeofthefrequency-thicknessprod-uctofinterestisrelativelyl

简介：Strongfluorescenceemissionswereobservedfornitrogen,carbonmonoxide,andcarbondioxidemoleculesinintensefemtosecondlaserfields.Theseemissionscanbeassignedtothetransitionsofthemolecularionsfromtheexcitedelectronicstatestothegroundelectronicstates.Theformationmechanismswerediscussedandthelifetimesweremeasuredfortheseexcitedmolecularionsinintenselaserfields.

简介：这份报纸为最佳的设计论述一条途径一新翻新叫的技术削弱并且抑制那为土木工程是有效的无弹性的结构。其他的设计方法论关于能决定地点和结构的元素变弱或弄软并且增加的大小当保险结构的稳定性时，抑制的存在的被开发。是处于非线性的状态的多项式的求和的一个最佳的多项式控制器在阶段1方法被使用减少山峰反应数量地震地激动非线性或hysteretic系统。最佳的多项式控制器的主要优点是它能自动地稳定结构的系统。砍类型结构的最佳的设计被用作一个例子说明建议途径的可行性，它导致减小两个都达到顶点内部故事的飘移和山峰总数加速。

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