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program
30/12/2021 1414
program

DefinitionoftermsInthenationalstandardofthePeople’sRepublicofChina"QualityManagementSystemFundamentalsandTerminology"GB/T19000—2008/ISO9000:2005(replaceGB/T19000—2000),Section3.4.Thedefinitionof"proce...

New technological revolution
29/12/2021 1122
New technological revolution

BackgroundTherearemanybackgroundsfortheemergenceandrapiddevelopmentofthenewtechnologicalrevolution.Firstofall,theneedsoftherapiddevelopmentofmodernproductionandthemulti-facetedneedsofthedevelopmentofm...

Jilin University
29/12/2021 1347
Jilin University

BasicinformationHistoricalevolutionTracingtotherootsOriginalJilinUniversityJilinUniversityoldphotoalbum(2photos)TheoriginalJilinUniversitywastheMinistryofEducationofthePeople’sRepublicofChinaThedirect...

Anti-theft alarm controller
28/12/2021 1210
Anti-theft alarm controller

DeviceclassificationAnti-theftalarm:1.Intrusiondetector--changetheintrusioninformationoftheprotectedsiteintoAdevicethattransmitselectronicsignalstotheoutside.Commonlyknownastheprobe,alsoknownasthefron...

Routing table
28/12/2021 1285
Routing table

IntroductionIncomputernetworks,aroutingtableorRouterSelectionInformationBase(RIB)isaspreadsheetstoredinarouterornetworkedcomputer(File)orclassdatabase.Theroutingtablestoresthepathtoaspecificnetworkadd...

CNC machine tools
27/12/2021 1230
CNC machine tools

MainfeaturesTheoperationandmonitoringofCNCmachinetoolsareallcompletedinthisCNCunit,whichisthebrainofCNCmachinetools.Comparedwithordinarymachinetools,CNCmachinetoolshavethefollowingcharacteristics:1.St...

Cable channel
27/12/2021 1184
Cable channel

SynonymtelephonecablegenerallyreferstowiredchannelTransmissionmediaTherearefourmaintypesofwiredchannels.Namely,openwire,symmetricalcable,coaxialcableandopticalfiber.OpenwireAnopenwirereferstoanoverhea...

Joseph John Thomson
26/12/2021 1137
Joseph John Thomson

ThesynonymThomson(thewinneroftheNobelPrizeinPhysics)generallyreferstoJosephJohnThomsonCharacterRelationshipErrorcorrectionTurnofferrorcorrectionSonGeorgePageThomsonAnerror5823322hasbeenreportedCharact...

Code
26/12/2021 1517
Code

ExplanationoftermsAnysymbolsystemforinputtingdataandinstructionsintoautomaticcomputersortabulatingmachines;alsoreferstotherecordingofsuchsymbols(suchastypingThemagneticpointontheholedatacardortape).Co...

Barcode scanner
25/12/2021 1325
Barcode scanner

ShapeclassificationBarcodesonthemarketareroughlydividedinto:handheld,smallroller,andplatformbarcodehandheldThehandheldbarcodescannerisaproductformedbytechnologyintroducedin1987,anditsappearanceisverys...

Storage means
25/12/2021 1107
Storage means

BasicinformationCurrencyisageneralequivalent,whichcanbeexchangedwithallothercommodities,anditcanbestoredasgeneralsocialwealthbypeople.Asameansofstorage,currencycontinuestodevelopwiththedevelopmentofth...

Labor resources
24/12/2021 1185
Labor resources

DefinitionLaborresourcesrefertothequantityandqualityoflaborinacountryorregionatacertainpointorperiodoftime.Laborers’productiontechnology,culturalandscientificlevel,andhealthstatus]Thesumofthework...

Second World War
24/12/2021 1176
Second World War

WarbackgroundTimebackgroundThebaneofWorldWarIOnNovember11,1918,GermanyandtheAlliessignedasurrenderagreementintheCompiègneForestnortheastofParis,France.TheFirstWorldWarendedwiththevictoryoftheAlliedPow...

Physical layer
23/12/2021 1435
Physical layer

MainfunctionsThemainproblemstobesolvedbythephysicallayer:(1)Thephysicallayershouldshieldasmuchaspossiblethephysicalequipmentandtransmissionmedia,andthecommunicationmeansDifferent,makethedatalinklayern...

Physical address
23/12/2021 1259
Physical address

ConceptdescriptionMAC(MediaAccessControl,MediaAccessControl)addressisanidentifierforidentifyingLAN(LocalAreaNetwork)nodes.Itdefineshowthedataframeistransmittedonthemedium.Inlinksthatsharethesamebandwi...