简介:AcollaborativevirtualmodelingenvironmentbasedonVRMLispresentedasasugarcaneharvestermodelingframework,andisillustratedwiththeimplementedsoftwarethatcanusingI_DEAS,Smarteam,andConceptualInnovationDesignSystem(CIDS)asthesupportingplatform,whichispowerfulenoughtomeetthedemandsofdifferentreallifeapplications.Itispossibletoperformcollaborativeinteractivemodificationswithconcurrentsynchronousvisualizationateachclientcomputerwithanyrequiredlevelofdetail.Theplatformprovidesaproductmodelingandassemblingenvironment,andtheproductdataamongI_DEAS,SmarteamandCIDScanbeexchanged.
简介:摘要:为了有效减少航班延误,机场、空管、航空公司做出了许多探索和改进。直到协同治理理论的提出,为多家单位找到了一种有效减少航班延误的工具。协同治理理论是在协同理论和治理理论的基础上发展起来的,从协同治理理论的具体内涵看,协同以治理为前提,然后通过相关各方的共同参与,最终达到治理的目标。空域管理是影响航班延误的另一个重要因素。空域管理是指为维护国家安全,兼顾民用、军用航空的需要和公众利益,统一规划,合理、充分、有效地利用空域的管理工作。
简介:Collaborativeenvironmentssupportingpointtopointandmultipointvideoconferencing,documentandapplicationsharingacrossbothlocalandwideareanetworks,videoondemand(Broadcastandplayback)andinteractivetextfacilitieswillbeacrucialelementforthedevelopmentofthenextgenerationofHEPexperimentsbygeographicallydispersedcollaborations.The"VirtualRoomVideoconferencingSystem"(VRVS)hasbeendevelopedsince1995,inordertoprovidealowcost,bandwidth-efficient,extensiblemeansforvideoconferencingandremotecollaborationovernetworkswithinthehighEnergyandNuclearPhysicscommunities.TheVRVS(VirtualRoomsVideoconferencingSystem)providesworldwidevideoconferencingserviceandcollaborativeenvironmenttotheresearchandeducationcommunities,VRVSusestheInternet2andESnethigh-performancenetworksinfrastructuretodeployitsWeb-basedsystem,whichnowincludesmorethan5790registeredhostsrunningVRVSsoftwareinmorethan50differentcountries,VRVShostsanaverageof100-multipointvideconferenceandcollaborativesessionsworldwideeverymonth.Therearearound35reflectorsthatmanagethetrafficflow.atHENPlabsanduniversitiesintheUSandEurope,Sofar,thereare7VirtualRoomsforWorldWideConferences(involvingmorethanonecontient),and4VirtualRoomseachforintra-continentalconferencesintheUS,EuropeandAsia,VRVScontinuestoexpandandimplementnewdigitalvideotechnologies,includingH.323ITUstandardintegration,MPEG-2videoconferencingintegration,sharedenvironments,andQualityofService.
简介:Concerningthedemandsinnetworkedcollaborativeinnovativedesign,aknowledge-basedcollaborativedesignmodelisintroducedthemodelofknowledgeintegrationalongwithitsrelevantsupportingtechniquesarepresented.Afterillustratingthegeneralknowledgesearchparadigm,akindofdynamicusermodelisproposedtoimproveknowledgesearchefficiency.Atlastashortintroductionofthesystem'simplementationisdescribed.
简介:Theshipdesignprocessmodelisthebasisfordevelopingtheshipcollaborativedesignsystemundernetworkenvironment.Accordingtothecharacteristicsoftheshipdesign,amethodfordividingtheshipdesignprocessintothreelayersispatforward,thatisprojectlayer,designtasklayeranddesignactivitylayer,thentheformalizeddefinitionsoftheshipdesignprocessmodel,thedecomposingprinciplesoftheshipdesignprocessandthearchitectureoftheshipcollaborativedesign(SDPM)systemarepresented.Thismethodsimplifiestheactivitynetwork,makestheoptimizationandadjustmentofthedesignplanconvenientandalsomakesthedesignprocesseasiertocontrolandchange,atlastthearchitectureoftheshipcollaborativedesignsystemisdiscussed.