简介：Inthispaperthepressure-magneto-electriceffectofJunctionFieldEffectTransistor（JFET）isdiscussedbyusingstandardrelaxationtechniques.AtheoreticalevaluationofthepressuresensitivityandHallsensitivityofthen-channelsiliconJFETwithvariousgeometries（W/L）,gatevoltages(VFS)anddrainvoltages(VDS)ismade.TheresultsshowthatwhenP≠0,B=0,thecurrent-pressuresensitivityisabout2.5%.cm2/N,supposingW/L（?）1/2-1.Basedonthat,ajunctionfieldeffectpressuresensorwithhighstabilityandlownoiseisdesigned.

简介：ThepaperdescribesthevariousenergymanagementtechniquesthatcanbeimplementedforamodernelectricvehiclebyusingMATLAB/Simulink.TheRenaultTwizyvehicleisconsideredforMATLABsimulation.Regenerativebrakingtechniqueisdiscussed,inwhichthekineticenergyisconvertedtoelectricitytochargethebatteryofthevehiclewhenthebrakesareappliedorwhenthevehicleismovingdownthehill.Asolarphotovoltaic(PV)ontheroof-topofthevehicleisimplementedtochargethebatteryusedinthevehicle.Thesimulationresultsarehighlightedandenergymanagementstrategiesarepresented.Theresultsshowedthatthespeedcontrolofdirectcurrent(DC)motorduringthemotoringmodeandregenerativebrakingmodewassuccessfullyachievedbyusingabi-directionalDC-DCconverterandaproportional-integral(PI)controlleratvariousreferencespeedssetbytheuserbyapplyingavariableloadtorquestothemotor.ThesizeofsolarPVonroof-topofthevehiclewasfoundtobe280Wthatchargedthe48Vbatteryofthevehiclebyusingabi-directionalDC-DCconverter,whichwasevaluatedbyusingMATLAB/Simulink.

简介：Withthedevelopmentofsmartgrid,residentshavetheopportunitytoscheduletheirhouseholdappliances(HA)forthepurposeofreducingelectricityexpensesandalleviatingthepressureofthesmartgrid.Inthispaper,weintroducethestructureofhomeenergymanagementsystem(EMS)andthenproposeapoweroptimizationstrategybasedonhouseholdloadmodelandelectricvehicle(EV)modelforhomepowerusage.Inthisstrategy,theelectricvehiclesarechargedwhenthepriceislow,andotherwise,aredischarged.Byadoptingthiscombinedsystemmodelunderthetime-of-useelectricityprice(TOUP),theproposedschedulingstrategywouldeffectivelyminimizetheelectricitycostandreducethepressureofthesmartgridatthesametime.Finally,simulationexperimentsarecarriedouttoshowthefeasibilityoftheproposedstrategy.Theresultsshowthatcrossovergeneticparticleswarmoptimizationalgorithmhasbetterconvergencepropertiesthantraditionalparticleswarmalgorithmandbetteradaptabilitythangeneticalgorithm.

简介：TheopticalabsorbanceinnearUVwavelengthregioninSnO2nanoclustersinanexternalelectricfieldisdeterminedatroomtemperature.Theabsorbancespectraasapplicedfieldandtheabsorbancevariationswiththeappliedfieldareobtained.Therelationbetweenabsorbancechangeandappliedfieldisnon-linear.andissaturatedathighfieldregion.

简介：BaldorElectric公司日前推出了最新的HoneyComb系列预装配式直线步进X—Y定位平台，该产品能够极大地提高各类机械设备的产能。

简介：AninputcouplerfortheTE021circularelectricmodeinagyroklystronamplifierthroughusingTE811asatransitioncouplingmodeinacoaxialcavityhasbeenproposedandnumericallysimulatedinafrequencyrangeofKa-BandwithHFSScode.ThecouplingefficiencyoftheTE021modeandthesuppressionfortheTE811modeinthemaincylindricalcavityaredeliberatelyconsideredbyadjustingthepositionandsizeofcouplingholesaswellastheradiusofthedrifttubes.ThenumericalresultsshowthattheTE021modecansuccessfullybeexcited,andrationalcouplingefficiencyandhighmodepurityfortheTE021modeinthecylindricalcavitycanbereachedfortheengineeringapplicationofgyroklystronamplifierstudy.

简介：Foranintegratedelectro-opticalsensor,theoperatingpointhasasignificanteffectontheperformanceofthesensor.Inthispaper,anopticalwaveguideelectricfieldsensorwithcontrollableoperatingpointisdesignedusingLiNbO3materials,whichhasanasymmetricMach-Zehnderinterferometer(MZI)structure.Theoreticalresultsshowthattheoptimaloperatingpointcanbeobtainedandcontrolledbytuningtheoutputwavelengthofthetunablelaserusedinthesensingsystem.Thesimulationresultsshowthatthesensitivityabout83dB·μV/mcanbeobtained,andthelineardynamicrangeaslargeas60dBcanbeachieved.Andthefabricationtoleranceofthecenter-to-centerdistanceforthe3dBcouplerusedintheasymmetricMZIis~0.5μm,whilethepowersplittingratiooftheYbranchiswithmoretolerance.

简介：有约束力的精力和浅施主杂质的空效果精力移动在拉紧的GaN/AlxGa1xN球形的有限潜力的量声明点(QD)基于有效集体近似用一个变化方法是计算的。有约束力的精力作为点尺寸和静水力学的压力的功能被计算。数字结果证明杂质州的有约束力的精力增加，达到最大的值，然后当QD半径为任何电场增加，减少。而且，有约束力的精力为点的任何尺寸与压力增加。为大点尺寸的杂质精力的空移动为小点尺寸比那大得多，并且它被电场的增加提高。我们有或没有紧张效果比较杂质状态的有约束力的精力，并且结果证明紧张效果更加提高杂质绑定精力，特别为小QD尺寸。我们也在我们的工作考虑绝缘的失配。