IntroductionThisbookcomprehensivelyandsystematicallydiscussesthebasicprinciples,applicationmethods,newtheoriesanddevelopmenttrendsofurbangeographicinformationsystems,aswellasmanyapplicationsinurbanpla...
BookinformationBooknumber:2019802ISBN:978-7-301-20198-5Author:(UnitedStates)WatsonEdition:1Format:Large32openBinding:flattr>Words:200Thousandsofpages:200Pricing:¥46.00Numberofviews:73Publicationda...
Synonym:Populationstructuregenerallyreferstothecompositionofthepopulation.ConceptThepopulationstructure,alsoknownasthecompositionofthepopulation,referstoaresultobtainedbydividingthepopulationaccording...
CountrynameThecountrynameofQinStatecomesfromplacename.IntheWesternZhouDynasty,QinFeizi,theleaderoftheQinpeople,wasgoodatraisinghorsesfortheZhouroyalfamily.In905BC,QinFeiziwasnamedtotheQinlandbyKingZho...
IntroductionVirginiaCode(alsotranslatedasVergenalCode)istheuseofaseriesofCaesarcodestoformacodeTheencryptionalgorithmofthealphabetisasimpleformofmulti-tablecipher.TheVirginiacipherhasbeeninventedmanyt...
DefinitionQuantitativeAnattributereferstoanattributethatexistsintheformofaquantityandcanthereforebemeasured.Theresultofthemeasurementisexpressedbytheproductofaspecificquantity(calledaunit)andanumber.T...
BasicinformationDefinitionApolysemouswordconsistsofthetermnameandseveralmeanings.Thedescriptioncontentofeachthingwithdifferentconceptualmeaningsunderthesametermnameiscalledthemeaningitem.Thedescriptio...
ThesynonymxDSLgenerallyreferstothexdigitalsubscriberline.ThegeneraltermforvarioustypesofDSL(DigitalSubscribeLine),includingADSL,RADSL,VDSL,SDSL,IDSLandHDSL.xDSLisanewtransmissiontechnologythatusesahig...
CopperwireaccesstechnologyCopperwirebroadbandaccesstechnologyisalsoDSLtechnology,mainlyincludinghighbitratesubscriberdigitalloop(HDSL),asymmetricsubscriberdigitalloop(ADSL)andVeryHighBitRateSubscriber...
ConceptTheswitchinghub,whichcameoutin1990,cansignificantlyimprovetheperformanceofthelocalareanetwork.SwitchinghubsareoftencalledEthernetswitchesorLayer2switches(indicatingthatthisswitchworksatthedatal...
BasicinformationHistoricalevolutionBeforethefoundingofthePeople’sRepublicofChinaFebruary10,1931,RedOneThefirstradiotrainingclassofthearmystartedinXiaobuTown,NingduCounty,JiangxiProvince.In1931,theCent...
IntroductiontosystemcallsBriefintroductionThemainfunctionoftheoperatingsystemistomanagehardwareresourcesandprovidegoodInordertoachievethisgoal,thekernelprovidesaseriesofmulti-kernelfunctionswithpredet...
DevelopmenthistoryConceptdefinitionTheso-called"neo-classicism"firstlyfollowstherationalistviewpointandbelievesthatartmustproceedfromrationalityandrejectthesubjectivethoughtsandfeelingsofartistsEspeci...
Informationflowchart[一)informationdi;r}Whenrapltsimulatescalculations,itisnecessarytoabstractandsimplifytheprocessobjectunderstudy,andtheninputtheinformationonthegraphintothecomputer.Calculatein...