简介：Amulti-channelACpowerSupplycontrolerdevelopedrecentlybyuswasintrodueedbrieftyinthispaper.Thiscontrollerisacomputercontrolledmulti-electronic-switchdevice.Thecontrollercontains16independentchannelsinastandardbox(440W×405D×125Hmm).Thereisanelectronicswitchineachchannel,theratedloadpoweris≤1kW.Themainfunctionofthecontrolleristosetthestateofelectronicswitch(ON/OFF)

简介：Wavelength-dependentACStarkshiftsandmagicwavelengthsoftheterahertzclocktransitionsbetweenthemetastabletripletstates6s5d3D1and6s5d3D2areinvestigatedwithconsideringtheopticallatticetrappingofbariumatomswiththelinearlypolarizedlaser.Thetrapdepthsandtheslopesoflightshiftdifferencewithdistinctmagicwavelengthsoftheopticallatticesarealsodiscussedindetail.Severalpotentiallysuitableworkingpointsfortheopticallatticetrappinglaserarerecommendedandselectedfromthesemagicwavelengths.

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简介：Weinvestigatethedynamicsoftwointeractionelectronsconfinedtoone-dimensionalquantumdotarrayinanacelectricfield.Wefindthatinitiallylocalizedelectronswillremainlocalizedintheabsenceofcoulombinteractioniftheratiooftheacfieldmagnitudetothefrequencyisarootoftheordinaryzero-orderBesselfunction.IncontrasttothecasewithoutCoulombinteraction,nomatterwhatthevalueis,theelectronsaredelocalizedandthedelocalizationeffectdependsontheratioU/ωandeaE/ω,whereUisthestrengthofCoulombinteraction,aisthelatticeconstant,andEandωaretheacfieldamplitudeandfrequency,respectively.

简介：由交流在一个量点分子为激子包含本地化和纠纷的现象的Schroedinger方程电的Seld是调查的经分解。Schroedinger方程的新准确系列解决方案第一次被获得了。分析表情能进一步在交流下面在一个双联合的量点分子描述交往的电子洞对的动态行为电Geldaccurately。

简介：Theflux-weakeningperformanceofapermanentmagnetbrushlessACdrivewasinvestigatedusingbothfloating-pointandfixed-pointDSPcontrollers.Asignificantcurrentoscillationwasobservedwhenthedrivewasoperatedathigh-speedintheflux-weakeningmodewiththefixed-pointDSP.Theinvestigationshowedthatthiswasduetotheon-linecompensationofthewindingresistancevoltagedropandquantisationerrorsassociatedwiththefixed-pointarchitectureoftheDSP.Asimplelook-uptableschemeisproposedtoeliminatetheoscillationandtoachieveextendedflux-weakeningcapability.