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1.
1 Introduction H.P.Yuenintroducedtheconceptoftwophotoncoherentstatein1976[1].Sincethattime,thesqueezedstateshavebeenoneofthemainsubjectsinquantumoptics.Usualsqueezingreferstothesecondordersqueezing.C.K.HongandL.Mandelgeneratedthesqueezingtohighe…  相似文献   

2.
1 Introduction InthispapersoftinsoftoutMAPdecodingalgorithmsbasedonthefastHadamardtransform(FHT)aredeveloped,andtheirapplicationsindecodinglowratemultidimensionalconcatenatedHadamardcodesareexamined.Theproposedmethodhasanotableadvantageofachiev…  相似文献   

3.
1 Introduction Quantumcoherenttransportinmesoscopicsystemhasbeeninvestigatedextensivelyinthepastdecade.Motivatedbysomerecentexperiments,madebyYacobyetal.[1]andBuksetal.[2],phasesensitivetransprotinanAharonovbohm(AB)ringwithaquantumdot(QD)embedded…  相似文献   

4.
1 Introduction Theproblemonthestabilityofinviscidincompressibleswirlingflowhasbeenstudiedbymanyauthors.Rayleigh[1]investigatedtheflowwithconstantaxialvelocity,i.e.U′=dUdr=0andfirstgotasufficientandnecessaryconditionofstabilityforaxisymmetricdistur…  相似文献   

5.
1IntroductionSincethemid90’s,thefinitediferencetimedomainmethodhasbeenappliedtosolveanumberofacousticalproblems.Examplesin...  相似文献   

6.
1 Introduction Thereducedgravitymaterialsprocessinghasbeenextensivelyusedtostudymetalsandglassesinthepastdecade[1~3].Toourknowledge,polymericmaterialshavenotbeenmentionedinthelowgravityenvironmentonthegroundbase.Thegravity,however,shouldplayanimpo…  相似文献   

7.
1 Introduction Withtheincreasingcapacityofhydrogeneratorsandtherelevantlyincreasingsizeandloadingofthrustbearings,theconfigurationofpadsupportedonasinglepivothasmoreandmoredifficultyinmeetingallthedemandsinrealoperationconditions.Theconfiguration…  相似文献   

8.
Structure on Denitrification in a Bio-electrode ReactorTX1IntroductionIntensiveagricultureandindustrialwastewaterdis-chargedha...  相似文献   

9.
1 Introduction Fromlate1980sto1990s,AT&TBellLaboratoryreportedsuccessivelysomeresearchresultsongeartypemicrogripperandothersimplemicromechanism[1].Inthepublications,severalphotographsofmicromechanisminoriginalpositionwereshown,butnodetaildescripti…  相似文献   

10.
ns of Boron-Doped Polycrystalline Diamond Film ElectrodesTX1IntroductionInelectrochemicalstudies,electrodesmadeofcom-monlyused...  相似文献   

11.
1 Introduction ThenecessityforgeneralizingthescalarPadeapproximantstothem×nmatrixPadeapproximantswasdiscussedinthesettingoftheminimalpartialrealizationproblem[1].ThefeasibilityforrecursivecomputationofthematrixPadeapproximantsinthecontextofminimalp…  相似文献   

12.
1IntroductionThesafetyofwalclimbingrobotisofgreatimportanceinrobotdesignandgaitprogramming.Safetyrequirementsincludebothan...  相似文献   

13.
1 Introduction Highpowerfactorinductionmotorwithfloatingwindinginparallelconnectionwithcapacitorsisamotorofspecialstructureandwithspecialconnection.Itsstatorcircuitconfiguration[1]isshowninFig.1.Fig1showstwosetsofstatorwindings,thepowerwindingsconn…  相似文献   

14.
1 Introduction Theimportanceofinformationtechnologyiswellknowninthedevelopmentsofnowadaysandthenextcentury,evenmore,itisoneofthemajorcomponentsofthehightechitemsof863project.Becauseofthealmostunlimitedincreaseofinformationvolumeneededtoberecordedo…  相似文献   

15.
1 Introduction Afuzzyneuralnetworkcontrollerbasedonthecombinationoffuzzylogicsystemandneuralnetworkhasuniquecharacteristics.Itnotonlyhasthefunctionoflearningandassociativememorybutalsoclearlyrepresentsakindofstructuredknowledgeanddoesfuzzyinferen…  相似文献   

16.
1 Introduction Theadaptivefuzzycontrolisasuccesfulissueofthefuzzycontrol.Theadaptivefuzzycontrolofonlinelearningandonlinecontrolistheorientationofthedevelopmentintheadaptivefuzzycontrolfield.Butthecomplexoftheplantsuchasstrongcoupledrelations,long…  相似文献   

17.
1 Introduction Inthelasttwodecadeseverincreasinginterestofscientistsandengineershasbeenattractedtoinverseandoptimizationproblemsofaerodynamics,butuptonowintheliteratureallpapersoninverse/hybridproblemsarestillconfinedtosteadyflow[1-3]. InRef.[5],th…  相似文献   

18.
1 Introduction Autonomousmobilerobotswithlegsorwheelsworkinginhazardenvironmentsoronroughterrainwillfacethepossibilityofbeingturnedoverbyunexpectedreactionbetweentherobotandtheenvironment.Typicalexamplesarevolcanoexplorationrobots,lunarorMarsrovers…  相似文献   

19.
1 Introduction Withthedevelopmentofinformationtechnology,speechtransmissionandspeechstorageisbecomingincreasinglyimportant.Accordingtothepresentdevelopmentofdigitalspeechprocessing,developmentofspeechcodingmethodswithhighcodingefficiencyandlowdist…  相似文献   

20.
1 Introduction Thepublicswitchedtelephonenetwork(PSTN)anditsbroadcoveragepromotethedevelopmentofvariousvisualcommunicationsservicesoverPSTN[1].TheallowedbitrateoverPSTNwithvoicebandmodemisstilllimitedtolowerthan64kbit/s,whichpresentsagreatchallenge…  相似文献   

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