简介：

简介：Anoveltwo-wayrotaryjoint(SandPband)isdescribed.ForSbandrotaryjoint,VSWRislessthan1.2overthefrequencyrangefrom1.2GHzto4.4GHz.ForPbandrotaryjoint,thestructureofthereentrantresonatorisusedtoreducethelengthoftherotaryjointtoaboutλ/4,andthespecialandsmallsizerequirementissatisfied.

简介：

简介：四个参数，煤气的流动，旋转速度，精制时间，和炖的时间的效果，在7075的旋转impeller精炼上，艾尔被学习。C2精制的Cl6，精制的旋转impeller，并且7075艾尔合金的合成精制与对方相比。结果证明旋转impeller精炼的最大的影响参数是旋转速度，由煤气的流动，精制时间，和炖的时间列在后面。直角的分析获得的最佳纯化参数如下：400r/min，0.4mL/h的惰性的煤气的流动，15min的精制时间，和6min的炖的时间的转子速度。最好的排除效果能被C2Cl6和旋转impeller。C2Cl6,旋转impeller，并且合成精制分别地是34.5%，69.2%，和78%。旋转impeller精制的标本的机械性质比由C2精制的Cl6，但是比那些低由合成精制。

简介：

简介：Inthispaper,theoperationprincipleoflaserrotaryencodersisexpoundedandtheopticalquadruplefrequencytechnologyusedinlaserrotaryencodersinex-plained,andthedesignideaofopticalsysteminΦ66mmlaserrotaryencoderismainlyintroduced,aswellasthechoiceofprincipaldevices.

简介：Corrosionofburningurbandomesticwastestoalkali-resistantbricksandspalling-resistanthighaluminabrickswasresearchedbystaticcruciblemethodandSEMinordertochooserefractoriesforcementrotarykilnsforcollaborativelydisposingwastes.Theresultindicatesthatthemaincorrosionmechanismisslagpermeationandcorrosion;theemittedhightemperaturegasescontainingalkali,sulfurandchlorineduringburningthewastesreactwithrefractoriesforminglowmeltingpointsulfate,chlorideandcompoundsalts,whichmetamorphosetherefractories,andtheloosemetamorphiclayeriseasytospallunderthermalstress.So,corrosionresistanceandspallingresistanceshallbetakenintoaccountwhenchoosingrefractoriesforcementrotarykilnsforcollaborativelydi

简介：Inrecentyears,punchingtechnologyofourcountryisdevelopingfast.Theproportionofhandfeedingpunchingprocessinghasgraduallybeenreplacedbyautomaticfeedingandunloadingmechanism,duetothelowefficiency,poorsecurity.Inthispaper,wedesignanautomaticfeedingandunloadingsystemofthepunchingsheetsofmotor.Therotarymanipulatorconsistsofthetransmissiondevice,themechanicalarmdevice,thematerialsuctiondevice,therawmaterialautomaticliftingdeviceandsoon.Adoptingtherodlesscylinderasthemainactuator,thesystemrealizesthesebeatmovementsofcontinuousliftingup,centering,conveying,unloading.Accordingtotheworkingprincipleandmechanicalstructureofthecomponentsinthesystem,thefunctionandapplicationofeachcomponentinthewholefeeding-and-unloadingsystemareanalyzedinthispaper.

简介：目的：提高颈部旋转手法的准确性。方法：应用定向式微型麦克风记录两组患者在施颈部旋转手法作用时发出的“咔哒”声。结果：颈部旋转手法主要作用在旋转侧，只有少部分是作用在旋转的对侧。定点旋转复位法作用范围小，作用点相对集中；端提旋转复位法作用的节段较多，作用点相对分散。结论：旋转手法主要作用在旋转侧，并非旋转的对侧；端提旋转复位法作用范围较广，对上颈段痛变的疗效较好；而定点旋转复位法作用范围较为局限，适用于下颈段病变；旋转时“咔哒”声的出现，预示着关节运动达到了极限。

简介：TheproblemofpicksequencingintherotaryrackS/Rsystem(PPS-RRS)isinvestigatedwiththeobjectiveofminimizingtheexecutiontime.TherotaryrackS/RsystemconsistsofoneS/Rmachineandmultiplelevelsofcarouselsthatcanrotateindependentlyinbi-directions.Theroutingpolicy,namelythedecisiononthestorageorretrievalsequence,dominatestheefficiencyandthethroughputforsuchS/Rsystems,duetothecomplicatedrelationshipbetweenalllevelsofcarouselsandtheS/Rmachine.ForthepurposeofoptimizingthePPS-RRS,acomputationalmodelisdevelopedintermsofexecutiontimeforpickingmultipleitemsinonetrip.CharacteristicsofthePPS-RRSareanalyzedandalocalsearchheuristicbasedonanewlyproposedneighborhoodispresented.Integratedwiththeproposedlocalsearchprocedureanewhybridgeneticalgorithmisdeveloped.Experimentalresultsdemonstratethestructurecharacteristicsofgoodsequenceandtheefficiencyandeffectivenessoftheproposedsequencingalgorithms.

简介：

简介：Fluidcharacteristicsofarotarywingheatmeterwithsingle-channelwerestudiedthroughthereticalanalysis,numericalsimulationandexperiments.Theobtainedresultsshowthatthenumberofvanescanobviouslyinfluencetheheatmeter,butthewatertemperatureseldominfluencethemeter,andtheoptimalnumberofvaneis6-8.

简介：<正>AttheinvitationoftheChineseAssociationforInternationalUnderstanding(CAFIU),a6-memberAustralianandNewZealand’sRotaryClubdelegationvisitedChinafromSeptember23toSeptember27.AsastaffmemberofCAFIU,Ihadthehonortotakepartinthereceptionofthedelegationthroughoutthistrip.

简介：

简介：

简介：

简介：Wereportamethodforsimultaneouslyanddirectlymeasuringallsix-degrees-of-freedom(six-DOF)motionerrorsofarotaryaxis.Suchamethodcombinestheprinciplesoflaserinterferometryandlasercollimationmeasurement.Onereferencerotaryaxisandtworetro-reflectorsareusedtoachievesimultaneoussensitivitytoallsixerrorsinafull-circlemeasuringrange.Asnoseparationmodelsarerequired,ourmethodiscapableofdynamicallymeasuringtheseerrorsinrealtimeandconvenientlydeterminingtheoriginoftheerrors.Anautomaticmeasuringdeviceisbuilt.Theeffectivenessofourmethodisexperimentallydemonstrated.

简介：Alow-lossfiberopticrotaryjoint(FORJ)hasbeendesignedbyusingtwokindsofC-lenscollimators.Itsinsertionlossandinsertionlossvariationduetorotationwithsingle-modefibercollimatorislessthan1.76dBand0.43dBrespectively.Themaximuminsertionlossandcouplingvariationduetorotationwithmulti-modefibercollimatoris1.71dBand0.29dB,respectively.ThiskindofFORJfeatureslowinsertionloss,smallcouplingvariationduetorotationandlowcost.

简介：Attheambienttemperatureandpressureaglowdischargeplasmawasusedasanewapproachforthecouplingofmethanewiththenewly-developedrotarymultidentatehelixelectrode.Inthepresenceofhydrogen,theeffectsoftheinputpeakvoltagesandgasflowratesonmethaneconversion,C_2singlepassyieldandselectivitywereinvestigated,andthentheresultswerecomparedwiththosefromthethree-discmultidentateelectrode.Thisdemonstrated,onanexperimentalscale,thattherotarymultidentatehelixelectrodewasbetterthanthemultidentatethree-discelectrodeastherewaslittleaccumulationofcoke,andtheC_2yieldperpasswas69.85%andC_2selectivityover99.14%with70.46%methaneconversionataninputpeakvoltageof2300Vand60ml/mingasflowrate.

简介：模式理论是到目前为止在纤维学习光的繁殖特征的主要方法，但是它不对在管的光的分析合适。由使用跟踪光线的方法，在纤维组织的multimode单个的mode-multimode(MSM)的光的旋转繁殖特征在这份报纸被分析。第一，在纤维的光线能在一个刻写的圆附近宣传，并且这纤维的中央轴是繁殖轴。第二，刻写的圆的半径被事件角度和事件位置决定，并且它的变化在0之间并且R在哪儿的M,RM是multimode纤维的半径。最后，核心的比率和cladding直径越大，繁殖效率是越多higher。