DevelopmenthistoryLasertechnologyappearedinthe1960s,anditsactualapplicationbeganintheearly1970s.Theearliestlasertransmitterwasanelectroniclasertubefilledwithhelium-neon(He-Ne)gas,whichwasverylarge,soi...

TheoreticalsourcesThetheoryofsocializationofproductionisanimportantpartofallMarx’seconomictheories.ThistheoryisMarx’stheoreticalsummaryofproductivityinthecapitalistera.MarxbasedTheactualhistoricalsitu...

SynonymHDLCgenerallyreferstoadvanceddatalinkcontrolTheabovecontentisreviewedandannouncedbytheNationalScienceandTechnologyTermReviewCommitteeDefinitionAdvancedDataLinkcontrol(HDLC,High-levelDataLinkCon...

OverviewInternetTVincludesIPTVandInternetTV.ItusestheInternettointegratemultiplecontentresourcestobroadcastliveoron-demandTVprograms.Itisamorepopularformofvideoprogramtransmissioninrecentyears.Itrelie...

Thisreferstowhetherthespeakersupportsmulti-channelsimultaneousinput,whetherthereisanoutputinterfaceforpassivesurroundspeakers,whetherthereisaUSBinputfunction,etc.Thenumberofexternalsurroundspeakerstha...

Asysmmetricalcableismadeofseveralpairsofdoubleconductorscalledcorewiresinaprotectivesheath.Inordertoreducetheinterferencebetweenthepairsofwires,eachpairofwiresismadeintoatwistedshape,whichiscalledatwi...

StatisticalmethodsStatisticsarerichandintricate,anditisnoteasytoselectstatisticalanalysismethodsreasonably.Forthesamedata,ifyouchoosedifferentstatisticalanalysismethods,sometimestheconclusionsarecompl...

PhonemictextPhonetictextrecordslanguagebyspecifyinglettersforphonemes.English,Arabic,andRussianbelongtothistypeoftext.ThespellingandpronunciationofChineseandEnglishphoneticcharactersareseriouslyoutofs...

IntroductionFoundedin1994,theWorldWideWebConsortiumisthemostauthoritativeandinfluentialinternationalneutraltechnicalstandardorganizationinthefieldofWebtechnology.Sofar,W3Chaspublishedmorethan200far-re...

Caratteristiche principali(1)IntegrazionePuòottenere,archiviare,organizzareesintetizzareinformazioniinmodouniformeattraversopiùcanali.

IdealopticalsystemTheidealopticalsystemisanimagingsystemthatcanproduceaclear,completelysimilarimagetotheobject.Thebeamsinwhicheachlightrayoritsextensionlinesallintersectatthesamepointarecalledconcentr...

BasicinformationHistoryBeijingUniversityofPostsandTelecommunicationsIn1955,theBeijingUniversityofPostsandTelecommunicationswasestablishedonthebasisofthetwomajorsofTianjinUniversity'sDepartmentofTeleco...

Основне информације Синопсис "Бум, бум" и "хуу, хуу", лупање срца и дахтање звуци су заглушујући. Све је почело да се замагљује, а затим изобличава. Затим је оштар воз звиждао повукао Капетана Колта Стивенса (глуми Џек Гилен...

DevelopmentCountriesintheworldregardthedevelopmentofnewmaterialsasanimportantaspectofeconomicdevelopmentandtechnologicalprogress.Variousnewtextilefibersareusedasimportantmaterialsintoday'shigh-techfie...

AbriefhistoryofresearchInprimitivesociety,primitivepeopleperceivetheexistenceofcarbondioxideintheirdailylife,butduetothelimitationofhistoricalconditions,theylookattheinvisibleandintangiblecarbondioxid...

IntroductionWhetheryouuseyoursmartphoneorPCtosurftheInternet,yourmobilephoneorPCwillbeassignedanIPaddress,andthemobilephoneorPCwillusethisIPaddresstocommunicatewiththeInternetCommunicateandexchangeinf...