Произход W.Diffie и M.Hellman публикуваха статия „Нова посока в криптографията“ в IEEETrans.onInformation през 1976 г. и предложиха, че „асиметричната криптография е публична.Концепцията за „ключова криптосистема“ е създала нова насока...

Overviewreferstothecompositionratioofvariousassetsinacompany’sinvestment,mainlyreferstotheratiooffixedinvestment,securitiesinvestmentandliquidityinvestment.Somecompanieshavetheproblemofinsufficientliq...

IntroductionHuainanRoadbelongstothenameofasupervisoryareaintheSuiandTangDynasties.IntheearlyTangDynasty,itwasasupervisoryagencyandaninformaladministrativeagency.AftertheAnshiRebellion,localseparatisme...

Историческа еволюцияПетият набор от RMB има 8 деноминации: 100 юана, 50 юана, 20 юана, 10 юана, 5 юана, 1 юана, 5 юана и 1 юана.

BasicinformationHistoricalevolutionInNovember1952,theCentralPeople’sGovernmentAdministrationCouncilapprovedtheestablishmentofBeijingPetroleumInstitute.In1953,inordertosupporttheeconomicconstructionand...

MainbackgroundTheoriginofuniversityrankingscanbetracedbackto1870.TheannualreportoftheFederalBureauofEducationranksuniversitiesbasedonthedatatheyhave.Themodernuniversityrankingswerepublishedin1983by"U....

BasicinformationHistoricalevolutionLateQingDynastySoutheastUniversityoriginatedinSanjiang,whichwasfoundedin1902Normalschool,underneaththeschoolistheDepartmentofPhysicsandChemistry(hereinafterreferredt...

DefinitionVirtualhosting,alsocalled"websitespace",istodivideaphysicalserverrunningontheInternetintomultiple"virtual"servers.Virtualhosttechnologyhasgreatlypromotedtheapplicationandpopularizationofnetw...

IntroductionThemillimeterwaveradarworksinthemillimeterwaveband.Usuallymillimeterwavereferstothe30-300GHzfrequencyband(wavelengthis1-10mm).Thewavelengthofmillimeterwaveisbetweencentimeterwaveandlightwa...

CountingsystemBaseThecountingsystematthebaseb(wherebisApositivenaturalnumberiscalledabase),andbbasicsymbols(ornumbers)correspondtothesmallestbnaturalnumbersincluding0.Togenerateothernumbers,thepositio...

IntroductionThemostcommonlyusedsubstratematerialforintegratedcircuitdesignissilicon.Thedesignerwillusetechnicalmeanstoelectricallyisolatethevariousdevicesonthesiliconsubstratefromeachothertocontrolthe...

HistoryofdevelopmentTheoldnameispassinspection,inspectionpreparationorintroduction.Thebasicunitofcompositionistheindexentry.Theentrygenerallyincludesthreeitems:index,descriptionorannotation,andsource....

HistoryEarlycivilizationMainentry:Eland、MediElandandMedesperiod(2700BC-553BC)ElamandMedesarenotyetcalledPersiabytheGreeks,buttheyarethehistoryofthePersianregionAnindispensablepartofit.Elamisoneoftheo...

Synonymnetworkcomputinggenerallyreferstometa-computingResearchbackgroundandsignificanceSincethefirstelectroniccomputercameoutin1946,computerscienceandtechnologyhaveundergonetremendouschanges.Thedevelo...

IntroductionSemiconductorswitchingelementscontrolledbyelectricalsignalsthatcanperformlogicoperations,alsoknownasgatecircuits.Itisanewtypeofautomationcomponentdevelopedonthebasisofinverters,flip-flops,...

BasisIndividualdifferencesExercisersvaryinage,gender,physicalcondition,exerciseneeds,etc.,eveniftheaboveconditionsareallSimilarpeoplewillalsohavedifferencesintheexerciseprocessduetotheadaptabilityofth...