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简介：Weinvestigatetheresonantinteractionofaweakgravitationalwavewithamicrowavebeaminacouplingelectromagneticsystem,whichconsistsofaGaussianbeamwithdoublepolarizedtransverseelectricmodes,astaticmagneticfieldandfractalmembranes.Wefindthatunderthesynchroresonancecondition,ahighfrequencygravitationalwaveinamplitude10^-30andfrequency3GHzmayproducetheperturbativephotonfluxof2.15×10s^-1inasurfaceof10^-2m^2.Theperturbativephotonfluxcanbepumpedoutfromthebackgroundphotonfluxesandonemayobtaintheamplifiedsignalphotonfluxof2.15×10^4s^-1bycascadefractalmembranes.Itisworthstudyingthiseffectforthedetectionofhigh-frequencyrelicgravitationalwavesinquintessentialinflationarymodelsandthehigh-frequencygravitationalwavesexpectedbypossiblelaboratoryschemes.

简介：Thispaperproposesanadaptiverotorcurrentcontrollerfordoubly-fedinductiongenerator(DFIG),whichconsistsofaproportional(P)controllerandtwoharmonicresonant(R)controllersimplementedintherotorrotatingreferenceframe.Thetworesonantcontrollersaretunedatslipfrequenciesωslip+andωslip-,respectively.Asaresult,thepositive-andnegative-sequencecomponentsoftherotorcurrentarefullyregulatedbythePRcontrollerwithoutinvolvingthepositive-andnegative-sequencedecomposition,whichineffectimprovesthefaultride-through(FRT)capabilityoftheDFIG-basedwindpowergenerationsystemduringtheperiodoflargetransientgridvoltageunbalance.Correctnessofthetheoreticalanalysisandfeasibilityoftheproposedunbalancedcontrolschemearevalidatedbysimulationona1.5-MWDFIGwindpowergenerationsystem.

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简介：WepresentaschemeinwhichtheN-atomWstateisteleportedbyemployingtheselectiveinteractionofacavityfieldwithadriventhree-levelatomintheAconfigurationanddetectingasingleatominoneofthegroundstates.Thelong-livedWstateisteleportedfromatomAtoatomBwhentheatomsBandAaresentthroughacavitysuccessivelyandatomAisthendetected.TheadvantageisthatthepresentonedoesnotinvolvetheBell-statemeasurementandisrobustagainsttheatomicspontaneousemission.

简介：这篇论文建议一个当前的控制计划因为在imbalanced和弄歪的供应电压下面的一个连接格子的脉搏宽度调节的人(PWM)电压来源变换器(GC-VSC)调节。控制计划在积极同时地旋转的引用框架被实现并且一个单身者填写了反响的控制器分别地在2ω和6ω的频率调节了的比例的积分(PI)管理者和多频率。与在一个原型GC-VSC系统上消除活跃电源摆动和当前的泛音的目标，试验性的结果在供应电压不平衡和失真期间验证建议当前的控制计划的可行性。