Home >

Article

Packet switched network
23/03/2022 1137
Packet switched network

IntroductionPacketSwitchedDataNetwork(PSDN)technologyoriginatedinthelate1960s,withmaturetechnologyandcompleteregulations,andiswidelyusedincountriesallovertheworld.Thebackbonenetworkofmycountry'spublic...

Three lines of defense
23/03/2022 995
Three lines of defense

Themaintaskistopreventcriminalsorcriminalsuspectsincustodyfromescaping,assault,sabotage,riotsandriots,preventandcombatcriminalactivitiessuchascriminalsattackingdutytargets,robcriminalsorcriminalsuspec...

Chemical etching
22/03/2022 1211
Chemical etching

IntroductionChemicaletchingEtchingisatechniquethatremovesmaterialsbychemicalreactionorphysicalimpact.Etchingtechniquescanbedividedintotwotypes:"wetetching"and"dryetching".Usuallyreferredtoasetchingisa...

number
22/03/2022 1296
number

Birthanddevelopment"Number"istheconceptofmeasuringthings.Itistheconsciousexpressionofthequantitythatexistsobjectively."Numbers"originatedfromthesymbolsusedbyprimitivehumanstocountandformnaturalnumbers...

collision
21/03/2022 1274
collision

ExplanationThephenomenonthattwoobjectsinrelativemotioncontactandquicklychangetheirmotionstate.Itcanbethecollisionofmacroscopicobjects,suchastamping,forging,hittingtheball,etc.,orthecollisionofmicrosco...

Priori probability
21/03/2022 1161
Priori probability

IntroductionInBayesianstatisticalinference,thepriorprobabilitydistributionofanuncertainnumberisaprobabilitydistributionthatexpressesthedegreeofconfidenceinthenumberbeforeconsideringsomefactors.Forexam...

routing
20/03/2022 1379
routing

Concept1.Routingreferstotheprocessinwhicharouterreceivesadatapacketfromoneinterface,directsitaccordingtothedestinationaddressofthedatapacket,andforwardsittoanotherinterface.Routingisoftencontrastedwit...

wireless sensor network
20/03/2022 1107
wireless sensor network

OverviewWirelesssensornetworkisaformofnetworkformedbyfreelyorganizingandcombiningtensofthousandsofsensornodesthroughwirelesscommunicationtechnology.Theunitsconstitutingthesensornodeare:adataacquisitio...

Robot gardener
19/03/2022 1125
Robot gardener

WorkAccordingtotheworkingprincipleof"RobotGardener",everyplantandrobotareconnectedtoacomputernetwork.Ifplantslackwaterorfertilizers,they"inform"thecomputersystemthroughsensorsplacedinthe"soil".Therobo...

data storage
19/03/2022 1340
data storage

StoragemediaDisksandtapesarecommonstoragemedia.Thedatastorageorganizationdiffersdependingonthestoragemedium.Dataonthetapeisonlyaccessedinsequentialfilemode;onthedisk,sequentialaccessordirectaccesscanb...

Hardware Acceleration
18/03/2022 1245
Hardware Acceleration

ProcessorTheEnglishnameofhardwareaccelerationisHardwareacceleration;howdoesthesystemworkwhenhardwaredecodingtakeseffect?Thehardwarehasthreeprocessors,CPU,GPUandAPU(notanaccelerationprocessorbutasoundp...

Ding Yuanzhu
18/03/2022 1217
Ding Yuanzhu

CharacterexperienceFrom1993to1995,hewenttotheUniversityofMontrealtodopost-doctoralresearch,andfrom1999to2001hewenttotheUniversityofPittsburghInternationalDevelopmentResearchCenterasaseniorvisitingscho...

Cement-based composite
17/03/2022 1213
Cement-based composite

IntroductionCement-basedcompositematerialreferstotheuseofPortlandcementasthematrix,alkali-resistantglassfibergeneralsyntheticfiber,variousceramicfibers,carbonandaramidandotherhigh-performancefibers,Me...

optimization
17/03/2022 1283
optimization

ExplanationWord:OptimizationPinyin:yōuhuà◎Optimizationyōuhuà[optimalize]TakecertainmeasurestobecomeexcellentInordertobemoreexcellent,"removethedrossandtaketheessence";Removethedrossinorderto...

Dual-system hot backup
16/03/2022 1209
Dual-system hot backup

IntroductionWhenaserverisdown,theotherserverinthetwocomputerscanautomaticallytakeoverthebusinessofthedownserver,soastoensurethatnomanualinterventionisrequired.Thesystemcancontinuetoprovideservices.Cla...