BasicinformationTheessenceofpacketswitchingistodividethedatatobetransmittedintomanygroupsaccordingtoacertainlength.Inordertoaccuratelytransmittotheotherparty,eachgroupismarkedwithmanydifferentdatagrou...
IntroductiontotheprotocolThehostIPsoftwareneedstobeextendedbymulticasttoenablethehosttosendandreceivemulticastpacketsonthelocalnetwork.Butthisaloneisnotenough,becausemulticastforwardingacrossmultiplen...
MaintypesAccordingtothedifferentmeltingpointsoftheintermediatefilm,itcanbedividedinto:lowtemperaturelaminatedglass,hightemperaturelaminatedglass,andinsulatingglass;Accordingtothedifferentmaterialsinth...
OverviewHarddiskdrive(HDD)referstoadevicethatcontrolsharddiskaddressingandaccessingdatainapersonalcomputer.Throughtheharddrive,thecomputercanstoredata.Althoughharddiskdriveandharddiskaretwoconcepts,si...
Cryptoanalysismethodforsolvingthekeyorsolvingthecorrespondingplaintextfromtheinterceptedciphertextbyselectingthespecificciphertextanditscorrespondingplaintextthatarebeneficialtotheattack.Oneofthewayso...
ThesynonymPHSgenerallyreferstoapersonalhandheldphonesystemTheabovecontentisreviewedandannouncedbytheNationalScienceandTechnologyTermReviewCommitteeIntroductionPersonalhandheldphoneSystem(PHS——-persona...
HistoricalevolutionOnJanuary1,1925,whenAT&Tpresident,WalterGifford(WalterGifford)acquiredtheresearchdepartmentofWesternElectronicsCorporation,acompanycalledAnindependententityof"BellTelephoneLabor...
BasicintroductionSpecialceramicsasstructuralparts.Itiscomposedofsingleorcompositeoxidesornon-oxides,suchasAl2O3,ZrO2,SiC,Si3N4,orcombinedwitheachotherorcombinedwithcarbonfiber.Usedinthemanufactureofce...
BasicinformationHistoricalevolutionTheShanghaiRussianSchoolattachedtoEastChinaPeople’sRevolutionaryUniversity(1949—1950)AfterthefoundingofthePeople’sRepublicofChina,inordertolearnfromtheexperienceofso...
PersonalexperienceHockfieldtaughtneurobiologyatYaleUniversityin1985andwasnamedfullprofessorin1994.Shespent19springandautumnacademiccareersatYaleUniversity.Shehasservedasthedeanofitsgraduateschool,thed...
ElementaryEducationPrimarySchool(7photos)Inadditiontothecharacteristicsofeducation,elementaryeducationhasuniquebasiccharacteristics:First,itisuniversal;Thesecondisobligatory;thethirdiscomprehensive.El...
ImpliedconceptsIntellectualresourcesarenotonlyhumancapital(individualorgroup)withcertainknowledgeandskillsandtheirintelligence(knowledge,management,brainpower,creativity,etc.),butalsoIncludingtangible...
HistoricalevolutionFoundingofthejointissueAftertheWarofResistanceAgainstJapanenteredthestalematestage,astheanti-Japanesebaseareasbehindenemylinesledbythepartyandtheanti-Japanesearmedforcesgrew,theCCPT...
HostaddressconceptThenetworkpartofanIPaddressiscalledanetworknumberornetworkaddress,andthehostcandirectlycommunicatewithdeviceswiththesamenetworknumberInthecaseofnoconnecteddevice,evenifthesamephysica...
DefinitionMedian,alsoknownasmidpoint,median.Themedianisthenumberinthemiddleofagroupofdataarrangedinorder,thatis,inthisgroupofdata,halfofthedataislargerthanhim,andhalfofthedataissmallerthanhim.Hereweus...