CharacteristicsItscharacteristicsintermsofmechanicsarehightransverseandshearstrength,goodcomprehensivemechanicalpropertiessuchastoughnessandfatigue,aswellasthermalconductivity,electricalconductivity,w...

DefinitionWorkpiecereferstotheprocessingobjectinthemachiningprocess.Itcanbeasinglepartoracombinationofseveralpartsfixedtogether.Therearevarioustypesofworkpieceprocessingmethods,includingturning,millin...

BasicinformationHistoricalevolutionTracingthesourceIn2017,thegateoftheNationalShanghaiBusinessSchoolwasrebuilt(3photos).InSeptember1917,theNationalNanjingHigherNormalSchool(thepredecessoroftheNational...

GeneralalgorithmHirschmanproposedanindexforjudgingthedegreeofequalityofdistributionbasedontheLorenzcurve.Supposetheareabetweentheactualincomedistributioncurveandtheabsoluteequalitycurveofincomedistrib...

FeaturesInthematerialcivilizationandspiritualcivilizationofmankind,basicsciencehasthefollowingcharacteristics:①Itisareflectionofthemostessentiallawofmaterialmovement,anditisdifferentfromothersciences....

Synonymousflightsimulationgenerallyreferstosimulatedflight.IntroductionSimulatedflightisbasedoncomputerhardwareandsoftwaretechnology,usingtheInternetandlocalareanetworkenvironmenttoperformsimilartorea...

TimeThefirsttimeThefirstscientificandtechnologicalrevolution(fromthe1860stothemid-19thcentury)isalsoknownastheindustrialrevolution.ThebourgeoisieruledTheestablishmentofBritain’soverseastrade,slavetrad...

ThesynonymofTangTaizong(thesecondemperoroftheTangDynasty)generallyreferstoLiShimin(thesecondemperoroftheTangDynasty)CharacterrelationshipErrorcorrectionTurnofferrorcorrectionWifeQueenWendeAnerror10955...

DefinitionThereisalotofresearchanddiscussionontheissueofclassroomefficiency.Butthereisabasicdescription,namely:toachievethebestpossibleteachingeffectwithaslittletime,energyandmaterialinputaspossible.T...

IntroductionInthefieldsofmolecularbiologyandgenetics,genomereferstothesumofallgeneticmaterialofanorganism.ThesegeneticmaterialincludeDNAorRNA(viralRNA).GenomicDNAincludescodingDNAandnon-codingDNA,mito...

OverviewTheoreticalknowledgeandpracticalactivitiesareinterdependentandaffecteachother.Firstofall,theoreticalknowledgecomesfrompracticalactivities.Itisasummaryandsublimationofpracticalactivities.Practi...

DevelopmentHistorySmartphone(6photos)Theworld’sfirstrecognizedsmartphone,IBMSimon(Simonpersonalcommunicationdevice)wasbornIn1993,itwasmanufacturedbyIBMandBellSouthincooperation.Asanemergingtechnology,...

IntroductionTheroutercanalsobecalledagatewaydevice.TherouteristhenetworklayerrelayandthethirdlayerrelaytaskcompletedinOSI/RM.Itstoresandpacketforwardsthedatapacketsbetweendifferentnetworks.Itismainlyt...

IntroductionFolding@homescienceProtein is formed by long chains. Protein is the basic condition for biological survival. As enzymes, they are the driving force of all biochemical reactions. As the bas...

Educationinformatization2.0willbringaboutthefollowingchanges:Changesintheviewofeducationalresources.Inthepast,wedigitizedknowledgeresourcesandmadethree-dimensionalresources,butthiswasnotenough.Weshoul...