简介:Weproposeaschemeformultiparty-controlledremotepreparationofthetwo-particlestatebyusingtwonon-maximallyGreenberger-Horne-Zeilingerstatesasquantumchannel.Ourschemeconsistsofonesenderandnremotereceivers.Itwillbeshownthatthesendercanhelpeitheroneofthenreceiverstoremotelypreparationtheoriginalstatewiththeappropriateprobability,andthesenderAlice'stwo-particleprojectivemeasurementandthecontrollers'single-particleproductmeasurementsareneeded.Wealsoobtainedtheprobabilityofthesuccessfulremotestatepreparation.
简介:BasedontheAfKdVequationofXuetal.,atheoryontheveloci-tiesoftheprecursorsolitongenerationintwo-layerflowovertopographyispresentedinthepresentpaper.Movingvelocitiesofprecursorsolitons,ofthefirstzero-crossingofthetailingwavetrainandoftheflowbehindthetopographyarefoundtheoretically.Itisshownthatforagiventopography,whenitsmovingvelocitiesareattheresonantpoints,wehavethefollowingrules:theratioofthemovingvelocityoftheprecursorsolitonstothatofthefirstzero-crossingofthetailingwavetrainequals-4/3.Atthesametime,theratioofthewidthofgeneratingregionoftheprecursorsolitonstothatofthedepressedwaterregionequalsalso-4/3.Thetheoreticalresultsareexaminedbymeansofnumericalcalculation.Thecomparisonbetweenthetheoreticalandnu-mericalresultsarefoundingoodagreement.Fordifferentstratifiedparametersoftwo-layerflow,thevelocitiesoftheprecursorsolitongenerationarealsopredictedintermsofthepresenttheoreticalresults.
简介:Whenarichmanwasaboutfifty,hisonlysonwasborn.Heandhiswifewerequitepleased.Theytookgoodcareofhimandgavehimallhewanted.Whentheirsongrewup,hedidn'tdoanythingexceptgambling(赌博)alltheday.Soonhelostallhisparents'moneyandtreasurestoothersandhadtoselltheirfieldsandhousesatlast.Beforelonghisparentsdied.Fromthenonhelivednowhere.Hecouldn'tliveany
简介:Theaimofthisresearchistocharacterizethedevelopmentoffatiguedamagebymeansofstress-strainhysteresis.Experimentswereconductedon14specimensmadeofcold-finishedunannealedAISI1018steel.Resultsdemonstratethatthemechanicalhysteresisloopareas,whenplottedasafunctionofthenumberofloadingcycles,showsignificantvariationsanddemonstratethethreeprincipalstagesconcerningtheprogressofthefatiguefailure—initialaccommodation,accretionofdamageandterminalfailure.ThesethreestagesoffatiguearemarkedbythetransitionsatcyclesN2andN3.ExperimentalresultsshowthatalthoughfatiguelifeNfrangesfrom2644cyclesto108992cycles,theratiosofN2/NfandN3/Nftendtobestable:N2/Nf=10.7%,N3/Nf=91.3%.
简介:数据包封分析(DEA)是为与多重输入和产量测量决策单位(DMU)的相对效率的一个有效非参量的方法。处于许多真实状况,DMU的内部结构是二阶段的网络进程,分享的输入在两个阶段生产的阶段和普通产量使用了。例如,医院有二阶段的网络结构。舞台1消费象产生象医药记录,洗衣店和家务那样的产量的信息技术系统,植物,设备和主管人员那样的资源。舞台2消费舞台1使用的资源(命名分享的输入)和舞台1产生的产量(命名中间的措施)的一样的集合提供耐心的服务。而且,一些例如,输出耐心的满足度,被二个单个阶段一起产生(命名分享的产量)。因为一些分享的输入和产量努力被分开并且分配到各单个的舞台,它需要为处于如此的问题评估二阶段的网络进程的性能开发二阶段的DEA方法。这份报纸扩大集中的模型测量二阶段的过程的DEA效率与非,splittable分享了输入和产量。一条加权的添加剂途径被用来联合二个单个阶段。而且,添加剂效率分解模型被开发同时评估最大并且为单个阶段的最小的可完成的效率。最后,中国建设的分支在安徽省存的17城市的一个例子被采用说明建议途径。
简介:IntheChineseacademiccircles,thestudyofChina-U.Srelationshasachievedtremendousprogressafternearly30years'endeavor.Thisisnodoubtgratifying.Inrecentyears,theUnitedStateshasputforwardthenewconceptof'stakeholder'and,basedonit,definedChina-U.S.relationsinthe21stcentury.Thetermof'stakeholder'waswrittenintothe2006editionoftheU.S.
简介:Atwo-stagedelectronicballastwithwidedimmingrange,highpowerfactor(PF)andlowelectromagneticinterference(EMI)ispresented.Itchangestheinputvoltageofthestageofpowerinverterfordimmingcontrol,soitovercomessomelimitationsoftraditionalelectronicballaststhatusefrequencyvariation.Atthesametime,thestageofpowerinverterrunsunderthesoft-switchingatthefixedswitchingfrequencyandreducesEMIgreatly.Itsprincipleandcharacteristicareanalyzedindetail,andexperimentalandsimulatedresultsareobtainedona40Wfluorescentlamp.
简介:IntroductionRecently,becauseofmankind’sexploitionandutilizationofnaturalresource,aswelastherapiddevelopmentofeconomy,theprime...