简介:ANEWCOMPUTERRETRIEVALSYSTEMFORMETEOROLOGICALINFORMATION¥BeiGang(贝刚)ANEWCOMPUTERRETRIEVALSYSTEMFORMETEOROLOGICALINFORMATIONBei...
简介:Paleocontinentalreconstructionisofthenatureofmultidisciplinaryanalysis.Thispaperdiscussesthesignificanceofsomemoreimportantdisciplines,includingpaleomagnetism,paleoclimatologyandpaleobiogeography.Topattentionshouldbepaidtothesyntheticanalysisandgeologicalexplanationofgeophysicaldata.Reassemblingofthepaleocontinentsbygeometricsimilaritiesispreliminary,geologicalconsiderationsshouldreceivemoreattention.SeveralrulesconstrainingthereconstructionareproposedandEulerpolesusedtoreassemblesomeseparatedPrecambrianmedianmassifstotheirmothercontin-entsaregiven.Acomputersoftwareforpaleocontinentalreconstruction,GUDALU,isintroduced.Thesoftwareisflexibleinthatitgivestheusermaximumfreedomtodemonstratehisorhergeologicalopin-ionsbyprovidingmeansoforganizinggeographicdataandrotationalparameters,manykindsofmappro-jectionofdifferentfeaturesanddynamiceditingofthereconstructionmaps.Finally,anexampleofMesoproterozo
简介:Thermodynamicpropertiesoffluidsareessentialfortheunderstandingofthegeochemicalbehaviorofvariousprocesses,Thepaperintroducesthemostupdatedcomputermodelingandsimulationmethodsinthestudyofthermodynamicsofgeofluids,inclduingsemiempiricalmodels(suchasequationofstate)andmoleculardynamicsandMonteCarlosimulation.Awell-establishedsemi-empiricalmodelcaninterpolateandextrapolateexperimentaldataandyieldmuchphysicochemicalinformation.Computermodelingmayproduce'experimentaldata'yieldmuchphysicochemicalinformation.Computermodelingmayproduce'experimentaldata'evenunderexperimentallydifficultconditions.Theyprovideimportantmethodsforthestudyofgeologicalfluidsystemsonthequantitativebasis.
简介:Weareinvolvedinanembarrassingsituationthatthelimitedcapa-bilityofautomatedfeatureextractionindigitalphotogrammetricsystemscannotsatisfytheincreasingneedsforrapidacquisitionofsemanticinformationforappli-cations.Facingthischallenge,anewtactic,Human-ComputerCollaborative(HCC)tactic,andacorrespondingnewmethod,Operator-ObjectDirected(OOD)method,areproposedforthedesignofasystemforfeatureextractionfromlargescaleaerialimages.Weholdthatinalmostalltechnicalcomplexsys-tems,fullautomationwillbeneithertechnicallyfeasiblenorsociallyacceptable.Thesystemshouldbedesignedtooptimizethroughthecooperativeoperationwithtwoagentsinthesystem:thehumanandthecomputer.
简介:ThemainpurposetodevelopaMapGraphicWorkstationonthewidelyusedmicro-computeristhatbyitthewholeprocessingofmapdatafromcapturing,managing,editing,updatingtographicoutputtingcanberealized.MapDigitizationSystem(MDS)isthesoftwaresystemtodealwiththeinitialandalsothemostimportantprocessing.Inthispaper,theauthorsintroduceaMDSonamicro-computerbasedMapGrphicWorkstationthathasbeenqualitifiedfortheproducationofdigitalmap.SincethesystemisdesignedtotallyindependentlyandinthegeneralframeoftheMapGraphicWorkstation,thecapturingandman-agingandotherprocessingsformapdataareinanintegralmanner,inwhichtheproducationofdigitalmapcanbefulfilledconveniently.Atthesametime,thesystemisflexibleforfunctionextensionandwidelyapplicabletothedatafromdif-ferentsourcesandwithdifferentinformationcharacterisitcs(e.g.,theprocessingofChinesecharactersonmap).