Superconductors,asthenamesuggests,areconductorsthatdonotdissipateenergyafterpassingacurrent.AftertheDutchscientistOnnesdiscoveredthesuperconductivityofmercuryin1911,peopleonlychangedthetemperatureinth...
OverviewThefirstgenerationoflaseranti-counterfeitingtechnologyismainlyusedtomakelaser-moldedholographicimageanti-counterfeitinglabels.Becauseofthepoormonochromaticityandpoorcoherenceofordinarylightsou...
BackgroundThebirthofSDHtechnologyhasitsinevitability.Withthedevelopmentofcommunication,theinformationrequiredtobetransmittedisnotonlyvoice,butalsotext,data,imagesandvideos.Coupledwiththedevelopmentofd...
Thecellbodyofthehorizontalcellislocatedoutsidetheinnercorelayerandsendsoutmanyhorizontalbranchesextendingintotheoutermeshlayertoformsynapseswithrodcells,bipolarcellsandinterreticularcells.Therearegapj...
Taustaa Lokakuusta 2002 alkaen CCTV:n vuosittainen "Liikkuva Kiina" -kuvavalinta on aiheuttanut voimakkaita vaikutuksia yhteiskunnassa. Kansanpalvelija ZhengPeimin, avaruussankariYangLiwei, yksikätinen sankariDingXi...
IntroductionLanguageistheessentialcharacteristicthatdistinguisheshumansfromotheranimals.Amongalllivingthings,onlyhumanshavetheabilitytospeak.Avarietyofhumanintelligencesarecloselyrelatedtolanguage.Hum...
SynonymouscopperplategenerallyreferstocopperyuanBasicinformationTheoriginofcopperyuanTheearliestcoppercoin(machinedcoppercoin)inChinawasborninthethirteenthyearofGuangxubyZhangZhidong,thegovernorofGuan...
RawmaterialcharacteristicsNaturalfiberThenaturalfibercontainedinsilkismainlysilkfiber,whichisacontinuouscoagulationofthesilkliquidsecretedbythecocoonwhenthecocoonisformed.Longfiber,alsoknownasnaturals...
ThesynonymGeorgeEastmangenerallyreferstoGeorgeEastman.AnexcellenttalentPersonalInformationEastmanwasborninWaterville,NewYork,USA(Waterville)village.ItistheyoungestofthethreechildrenofMariaKilbournandG...
DefinitionInformationManagement(InformationManagement,IM)isthecomprehensiveuseoftechnological,economic,policy,legalandhumanisticmethodsandMeansinordertocontrolinformationflow(includinginformalinformat...
OverviewDecodingisthereverseprocessofencoding.Duringencoding,eachbinarycodeisassignedaspecificmeaning,thatis,itrepresentsacertainsignalorobject.Theprocessof"translating"thespecificmeaningofthecodestat...
WorkingprincipleRollingballmouse:Therubberballisdriventothegratingwheelwithlight-emittingdiodesandphototransistorwaferpulsesignalsensor.Opticalmouse:Alightsourcepulsesignalsensorwithlight-emittingsemi...
DevelopmenthistoryThebuddingeraThehistoryofNokiabeganin1865.In1865,miningengineerFredichIdestamestablishedawoodpulpfactorybyariverinTampere,Finland.ThefactorywaslocatedatthejunctionofFinlandandtheRuss...
SpreadinghistoryTangDynastyFirst DiscoveryIn627,inChencangshan,FengxiangMansion,Shaanxi (InBeihan,Shigushan,BaojiCity,anoldpaimen löysi 10 outoa graniittilohkareita. Nämä valtavat kivirungot on muotoiltu samankaltaisiin rumpuihin, ro...