Home >

Article

Physical network
14/05/2022 1325
Physical network

DefinitionThenetwork"connected"bythecomputerhardwaremediabytheTCPfactoryiscalledthephysicsweb.Currently,thetransmissioncontrolprotocolInternetprotocolTCP/IPiscommonlyused,thatis,thetransmissionlayerIP...

Songyan
14/05/2022 1235
Songyan

Explanation1.Theblackashthatiscondensedafterburningpinewoodistherawmaterialformakingpinesmokeink.2.Referstoink.3.Referstothesmokecloudsinthepineforest.SourceJinWeishuo's"Bizhentu":"Theinkistakenfromth...

Modern communication technology
13/05/2022 1481
Modern communication technology

ConceptTheso-calledcommunication,thesimplestandmostbasicunderstanding,isthemethodofcommunicationbetweenpeople.WhetheritisthetelephoneortheInternet,themostbasicproblemsolvedisactuallythecommunicationbe...

Precision guided weapon
13/05/2022 1389
Precision guided weapon

Developmenthistory1.EarlyguidedweaponsThefirstappearanceofguidedweaponswasduringtheSecondWorldWar,whentheBritishAirForcefirstappearedonMay12,1943.Thedaily"Freedom"patrolbomberthrewasound-seekingtorped...

books
12/05/2022 1355
books

WordconceptsBasicexplanation[books]Thegeneraltermforbooksboundintobooks.Militarybooks.BooksprintedonplateshavenotyetbeenpromotedbytheTangpeople.——Song·ShenKuo,"MengxiBiTan·LakeBoard"Citation...

political system
12/05/2022 1256
political system

SynonymsThetermssimilartothepoliticalsystemalsoinclude"regimeform","stateform","governmentform","regimeorganizationform","statestructureform"and"Governmentsystem",theseareallclassifiedtermsforpolitics...

Symmetric Algorithm
11/05/2022 1064
Symmetric Algorithm

PrincipleTheencryptionanddecryptionofthesymmetricalgorithmisexpressedas:Ek(M)=CDk(C)=MSymmetricalgorithmscanbedividedintotwocategories.Analgorithmthatonlyoperatesonasinglebit(sometimesabyte)intheplain...

Digital signal
11/05/2022 1217
Digital signal

IntroductionTheinformationagehascomewithoutnotice.Wearesurroundedbyvarioussignalsallthetime.Theessenceofthesignalisthephysicalquantitythatrepresentsthemessage(information),suchascommonInthesinusoidale...

Behavioral Learning Theory
10/05/2022 1294
Behavioral Learning Theory

ConceptBehavioristsbelievethatlearningistheconnectionbetweenstimuliandresponse.Theirbasicassumptionisthatbehavioristhelearner’sresponsetoenvironmentalstimuli.Theyregardtheenvironmentasastimulus,theacc...

storage card
10/05/2022 1407
storage card

MMCseriesMMCDuetothelargesizeoftraditionalCFcards,InfineonandSanDiskjointlylaunchedanewmemorycardproductin1997MultiMediaCard(MMCcardforshort).ThesizeoftheMMCcardis32mm×24mm×1.4mm,witha7-pininterfacean...

Circuit switched network
09/05/2022 1215
Circuit switched network

ClassificationTherearetwomaintypesofcircuit-switchednetworks,publicswitchedtelephonenetwork(PSTN)andintegratedservicesdigitalnetwork(ISDN),whichwillbeintroducedseparatelybelow.PublicSwitchedTelephoneN...

Carl Zeiss
09/05/2022 1274
Carl Zeiss

>EarlydaysIn1846,attheageof30,CarlZeissestablishedaprecisionopticalinstrumentfactoryinJenaandproduceditin1847Outofhisfirstmicroscope.Since1866,withtheassistanceofErnstAbbeandOttoSchott,theZeissfactory...

Microphone
08/05/2022 1434
Microphone

BriefintroductionThemicrophoneisoneoftheimportantpartsofthetelephone.Itcanconvertsoundintovoicecurrent,soitisanacoustic-electricconversiondevice.Microphonesaregenerallydividedintotwocategories,namelyl...

Organic synthetic materials
08/05/2022 1221
Organic synthetic materials

IntroductionTherearemanytypesofsyntheticmaterialsfororganicsyntheticmaterials.Syntheticplastics,syntheticfibers,andsyntheticrubbersarewhatweusuallycallthethreesyntheticmaterials;mainlyreferstothesynth...

Surface roughness
07/05/2022 1232
Surface roughness

Synonymsurfacefinishgenerallyreferstosurfaceroughness.DevelopmentInordertostudytheinfluenceofsurfaceroughnessontheperformanceofpartsandtheneedtomeasuresurfacemicroscopicunevenness,fromthelate1920stoth...