简介：

简介：ＦｅｅｄｂａｃｋＭｅｃｈａｎｉｓｍｉｎＤｅｃｉｓｉｏｎＳｕｐｐｏｒｔＳｙｔｅｍｓTXＦｅｄｂａｃｋＭｅｃｈａｎｉｓｍｉｎＤｅｃｉｓｉｏｎＳｕｐｐｏｒｔＳｙｓｔｅｍｓＳｕｎＺｈａｎｓｈａｎＩｎｓｔｉｔｕｔｅｏｆＳＥ．ＤａｌｉａｎＭａｒｉｔｉｍｅＵｎｉｖｅ...

简介：Onthebasesofthepropertiesofabstracthierarchicalstructuremodelandtheconcretestructureofthemodelsystem,whichisconvenienttosolvepracticalproblems,avisualinteractivehierarchicalcoordinationmethodhasbeenproposed.Inthispaper,acompensationadjustmentsub-modelforhydropowerstations,anoptimaloperationsub-modelforhydro-thermalpowersystems,andanaggregationmodelbasedontheaspirationleveltheoryarebuilt,andthesemodelscanbesolvedwithdecisionsupportalgorithm.Thesetofobjectivesanditsstructurecouldbemadebythedecision-makerinvisualsoftware,whichcouldbedecidedbyAHP.Finally,theapplicationresultsshowthatthismethodologyisfeasible,however,thesoftware(DSS)needsfurtherimprovement.

简介：Basedonthefulluseofhistoricalreservoirdispatchinginformation,artificialintelligenceisappliedtogridreservoirgroupdispatching.Aknowledgerepresentationmethod,whichcombinesdispatchingrulesandintelligencemodels,isputforward.Theintelligentdispatchingsystemisestablishedandthesystemarchitectureispresented.Additionally,theacquisition,representationandreasoningmechanismofreservoirdispatchingknowledgearedesignedindetail.

简介：

简介：TheconceptoftheKingGeorgeIslandExpertGIS(KGI-XGIS)isintroduced.KGI-XGISisacombinationofarule-basedexpertsystemandaGISmeanttoformanintelligentspatialdecisionsupportsystem.Thesystemprovidesthespatialknowledgenecessaryfortheenvironmentalimpactassessmentprocessasdictatedbythe'MadridProtocol'forKingGeorgeIsland(SouthShetlandIslands,Antarctica).Italsoservesasinformationsystemtothescientificusercommunity.Topographicmaps,remotesensingdata,thematicmapsbasedonfieldsurveysandotherdigitaldatathesemustbecombinedanduseainthemostefficientway.Thereforeexpertknowledgeofdifferentdomainswillbecodedintoarule-basedexpertsystemwhichiscoupledtotheGIS.TohandletheexpertknowledgeandthespatialdataofdifferenttypesanddirrerentqualitytheKGI-XGISincorporatesknowledge-basedtechniquesandfuizzyreasoning.TheselectionofacampsiteontheicefreeareaofFildesPeninsulaanddataqualitymanagementareusedastwoexamplestodemonstratethecapabioitiesofthesystem

简介：Aregionalgroundwatermanagementsystemhasbeenelaborated,integratingRelationalDatabaseManagementSystem(RDBMS)andvariouswebservices.Itconsistsofwebgeospatialapplicationso-calledHydrIS(HydrogeologicalInformationSystem)basedonOpenSourcecomponentsandtechnologies,leadingtoafeasibleandlow-costsolution.Therefore,HydrISpermitsdeliveryofdatafromanumberofheterogeneoussourcestostandardssupportedbytheOpenGeospatialConsortium(OGC).TheprotocolsusedforexchangingdataarealsoderivedfromOGCstandards,i.e.,WMS(WebMappingService),WFS(WebFeatureService),andWCS(WebCoverageService).Finally,ageoportalwasdeveloped,whichconsistsofclient-applicationsthatcommunicatewithdifferentWebServices(WMS,WCS,anAdWprFoSto)ttyhpreoufogrhwHeTbT-Pb-aresqeudeGstISs.applicationwasdesignedusingthedeegreeFrameworktoprovidesystematicinterfacesandfunctions.Thissystemwasdevelopedtodemonstratethevalueofmakinghydrogeologicaldatamorewidelyaccessiblethroughclient/serverarchitecture.Thisexperienceandknowledgealreadygainedinthisprojectwillbeasourcefortechnologytransferandpolicydecisions.Otherwise,thiswillenableusergroupstoimprovethemanagementoftheirground-waterresourcesandcontributetoenhanceddecisionsupportcapabilities.

简介：EDSSisacomprehensivesoftwaresystemforwaterqualitymanagementintidalrivernetworksingeneralandforthePearlRiverDeltainparticular.Itspurposeistoprovideapracticaltoolthatcouldassistgovernmentagenciesindecisionmakingfortheefficientmanagementofwaterresourcesintermsofbothquantityandquality.Bycombiningthecapabilitiesofgeographicalinformationsystem(GIS),databasemanagementsystem(DBMS),modelbasemanagementsystem(MBMS)andexpertsystem,theaimistoimprovethequalityofdecisionmakinginwhatisbecominganincreasinglycomplexarea.ThispaperfirstoutlinesthebasicconceptsandphilosophyadoptedindevelopingEDSS,thesystemarchitecture,designfeatures,implementationtechniquesandfacilitiesprovided.Thereafter,thecorepartofthesystemthehydrodynamicandwaterqualitymodelsaredescribedbriefly.ThefinalcontributioninthispaperdescribestheapplicationofEDSStothePearlRiverDelta,whichhasthemostcomplicatedtidalrivernetworkpatternsaswellasthefastesteconomicdevelopmentintheworld.Examplesaregivenofthereal-worldproblemsthatcanbeaddressedusingthesystem,includingcross-boundarywaterpollutionanalysis,regionaldrinkingwatertake-upsiteselection,screeningofimportantpolluters,environmentalimpactassessment,andwaterqualityzoningandplanning.ItisillustratedthatEDSScanprovideefficientandscientificanalyticaltoolsforplanninganddecision-makingpurposesintheinformationera.

简介：Thebasicmathematicmodels,suchasthestatisticmodel,thetime-serialmodel,thespatialdynamicmodeletc.,andsometypicalanalysismethodsbasedon3DCMareproposedanddiscussed.Afewtypicalspatialdecisionmakingmethodsintegratingthespatialanalysisandthebasicmathematicalmodelsarealsointroduced,e.g.Visualimpactassessment,dispersionofnoiseimmissions,basestationplanforwirelesscommunication.Inaddition,anewideaofexpectationoffurtherapplicationsandadd-in-valueserviceof3DCMispromoted.Asanexample,thesunshineanalysisisstudiedandsomehelpfulconclusionsaredrawn.

简介：Toolmanagementisnotasingle,simpleactivity,itiscomprisedofacomplexsetoffunctions,especiallyinaflexiblemanufacturingsystem(FMS)environment.Theissuesassociatedwithtoolmanagementincludetoolrequirementplanning,toolreal-timescheduling,toolcribmanagement,toolinventorycontrol,toolfaultdiagnosis,tooltrackingandtoolmonitoring.Inordertomaketoolsflowinto/outofFMSefficiently,thisworkisaimedtodesignaknowledge-baseddecisionsupportsystem(KBDSS)fortoolmanagementinFMS.Firstlyanoverviewoftoolmanagementfunctionsisdescribed.ThenthestructureofKBDSSfortoolmanagementandtheessentialagentsinthedesignofKBDSSarepresented.FinallytheindividualagentsofKBDSSarediscussedfordesignanddevelopment.

简介：Theobjectivesofthisstudyaretoassesslandsuitabilityandtopredictthespatialandtemporalchangesinlandusetypes(LUTs)byusingGIS-basedlandusemanagementdecisionsupportsystem.AGISdatabasewithdataonclimate,topography,soilcharacteristic,irrigationcondition,fertilizerapplication,andspecialsocioeconomicactivitieshasbeendevelopedandusedfortheevaluationoflandproductivityfordifferentcropsbyintegratingwithacropgrowthmodel--theerosionproductivityimpactcalculator(EPIC).Internationalfoodpolicysimulationmodel(IFPSIM)isalsoembeddedintoGISforthepredictionsofhowcropdemandsandcropmarketpriceswillchangeunderalternativepolicyscenarios.Aninferenceengine（IE)includinglandusechoicemodelisdevelopedtoillustratelandusechoicebehaviorbasedonlogitmodels,whichallowstoanalyzehowdiversifiedfactorsrangingfromclimatechanges,croppricechangestolandmanagementchangescanaffectthedistributionofagriculturallanduse.Atestforintegratedsimulationistakenineach0.1°by0.1°gridcelltopredictthechangeofagriculturallandusetypesatgloballevel.Globallandusechangesaresimulatedfrom1992to2050.

简介：

简介：

简介：

简介：

简介：NumericaltechniquesplayanimportantroleinCFD.Someofthemarereviewedinthispaper.ThenecessityofusinghighorderdifferenceschemeisdemonstratedforthestudyofhighReynoldsnumberviscousflow.Physicalguidelinesareprovidedfortheconstructionofthesehighorderschemes.Toavoidundulyadhoctreatmentintheboundaryregiontheuseofcompactschemeisrecommendedbecauseithasasmallstencilsizecomparedwiththetraditionalfinitedifferencescheme,BesidespreliminaryFourieranalysisshowsthecompactschemecanalsoyieldbetterspaceresolutionwhichmakesitmoresuitabletostudyflowwithmultiscalese.g.turbulence.Otherapproachessuchasperturbationmethodandfinitespectralmethodarealsoemphasized.Typicalnumericalsimulationswerecarriedout.ThefirstdealswithEulerequationstoshowitscapabilitiestocaptureflowdiscontinuity.TheseconddealswithNavier-Stokesequationsstudyingtheevolutionofamixinglayer,thepertinentstructuresatdifferenttimesareshown.Asymmetricbreakdownoccursandalsotheappearanceofsmallvortices.

简介：Aftercarefulinvestigationsandrepeateddiscussions,cadressenttosupportTibetfromFujianprovincehaveworkedoutaplantoaidTibetinthecomingthreeyear.

简介：BackgroundSpinalpainisaserioushealthandsocial-economicproblem.Endoscopicspinesurgeryasatreatmentoptionforspinalpainhasgainedtremendousattentionandgrowthinthepast2decades,andavarietyofendoscopictechniqueshavebeeninventedtotreatawiderangeofspinalconditions.PurposesThepurposesofthis2-partreviewarticleareto1)overviewthepublishedtechniquesofendoscopicspinesurgery,2)summarizetheapplicationsofthesetechniquesintreatingvariousspinalconditions,and3)evaluatetheclinicalevidenceofthesafetyandeffectivenessoftheseendoscopictechniquesintreatingsomeofthemostcommonspinalconditions.Thefirstpartofthereviewarticleprovidesanoverviewofcurrentlymostcommonlyusedtechniques.MethodsWesearchedthePubMeddatabaseforpublicationsconcerningendoscopicspinesurgeryandreviewedtherelevantarticlespublishedintheEnglishlanguage.ResultsDiscectomyandforaminotomyarethemostcommontypesofspinesurgerythatcancurrentlybedoneendoscopically.Endoscopictechniqueshavebeenusedtotreatawiderangeofspinaldisorderslocatedinthelumbar,cervical,aswellasthethoracicregionsofthespine.

简介：

简介：FoundedinOctober1987,JiaozuoHuafeiElectronic&ElectricApparatusIndustrialCo.,Ltd.hasbeenpursuingadvancedtechnologyandoutstandingquality,andhascarvedoutasuccessfulroadofrelyingontechnologicalinnovationtoconstruct,developandexpand.Thecompanyhasdevelopedintoaprovince-levelhigh&newtechnologyenterprise,province-levelenterprisetechnologicalcenter,withtheintegrationofscientificresearchanddevelopment,productionandbusinessoperation,andtechnologicalservices.Thecompanyhasbeenengagedintheproductionofaseriesofhighandnewtechnologicalproductsastheelectroniccontrolsystemofdirectcurrent,alternatingcurrentandfrequencyconversionhoistingmachine,averagetypeandexplosion-prooftype