ConceptAmorphous(glassy)opticaldielectricmaterialthattransmitslight.Itcanbeusedtomakevariousopticalelementssuchasprisms,lenses,filters,etc.Afterthelightpassesthrough,thepropagationdirection,phaseandin...

ClassificationWaterstoragetypeElectricwaterheater(5sheets)Accordingtotheinstallationmethod,itcanbedividedintowall-mounted(horizontalType)typeelectricwaterheatersandfloor-standing(vertical)waterheaters...

Thesynonymddngenerallyreferstothedigitaldatanetwork.BasicconceptsWiththedevelopmentofdatacommunicationservices,relativelyfixedusertrafficisrelativelylarge,andrequiresstabledelayandreal-timeperformance...

DefinitionWhatisthevisualsystem?ThevisualdepartmentoriginatedinJapan.Afterseveralyearsofnetworkcommunicationandinternationalexchanges,youngChinesefriendsgraduallylearnedaboutthevisualdepartmentonmajor...

DataEncryptionStandard(DES)isawidelyuseddataencryptionmethodthatusesakey.TheUSgovernmentbelievesthatthekeyisdifficulttocrackandrestrictsitsexporttoothercountries.Thereare72petaflopsormoreencryptionkey...

TheoriginofdramaThetheoryofsinginganddancingThistheorycanbedividedintothreetypes:(1)Thetheoryofcourtmusicanddance,Nalanxingde's"MiscellaneousKnowledgeofLushuiPavilion"intheQingDynastysaid:"Themusicoft...

BasicinformationWiththeriseandrapiddevelopmentoftheInternetinthelate1990s,wehaveenteredanewera,withalargeamountofinformationanddatacomingoncoming,usingscientificmethodstogoItismoreurgentthanevertoorga...

InterpretationThepsychologicalprocessreferstotheprocessoftheoccurrenceanddevelopmentofpsychologicalactivitieswithinacertainperiodoftimeundertheactionofobjectivethings.Itusuallyincludesthreeaspects:cog...

IntroductionUsuallyinintegratedcircuitdesign,somemathematicalmethods(suchasbinarydecisiondiagrams,Booleansatisfiabilityproblems)areusedtoperformformalverificationbetweendifferentcircuits.Comparewhethe...

CharacterrelationshipErrorCorrectionCloseErrorCorrectionFatherLiuDeAnerror4008058hasbeenfedbackCharacterBiographyLiuXiang(2photos)FouryearsofDijie(66BC),RenNianlang;ThesecondyearofShenjue(60BC)Years),...

BasicconceptScreenalsocalledDisplay,thescreensizeisbasedonthediagonalofthescreenLinecalculation,usuallyininches(inch)astheunit,referstothelengthofthescreendiagonal.Commonlyuseddisplaysincludestandard(...

BackgroundWiththedevelopmentofelectronictechnology,avarietyofpulsewidthmodulation(PWM)technologieshaveemerged,including:phasevoltagecontrolPWM,pulsewidthPWMmethod,RandomPWM,SPWMmethod,linevoltagecontr...

BasicintroductionIntermsofsocialwelfareEveryonecanenjoythemostbasicwelfarefrombirthtodeath:Food(Meetthebasicdailylivingneeds),education(freefromkindergartentouniversity),accommodation(youcanhavethemos...

SynonymFujitsugenerallyreferstoFujitsuBrandIntroductionFujitsuisthenumberoneITmanufacturerinJapan,thefourthlargestITservicecompanyintheworld,andthetopfiveserverandPCmanufacturersintheworld.Itistheworl...

BasicinformationHistoricalevolutionThepredecessoroftheschoolShaanBeigongxueAftertheJuly7thIncidentin1937,inordertocultivaterevolutionarycadresandmeettheneedsoftheAnti-JapaneseNationalLiberationWar,the...