简介：OGCWebMapServiceisonekindofOGCPortrayalServicesbelongstoOGCWebServicemodelanditprovidesmulti-platforminteroperabilityofspatialdataset.ThispaperpresentsamethodforimplementingOGCWebMapServicebasedonWebServicetechniqueandintroducesthedetailedprocess.

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简介：Aresearchonthathowthetopicofmobility,whichiscompletelydifferentbuttightlyrelevanttospace,providesnewapproachesandmethodssoastopromotethefurtherdevelopmentofgeographicinformationservices,willaccumulatebasicexperiencefordifferenttypesofrelativeinformationsystemsinthewidefieldsoflocationbasedservices.Thispaperanalyzesthemeaningofmobilityandthechangeforgeographicinformationservicemodel,itdescribesthedifferencesandcorrelationbetweenM-GISandtraditionalGIS.Itsetsatechnicalframeworkofgeographicinformationservicesaccordingtomobilecontextandprovidesacasestudy.

简介：现在，空间数据在因特网上被卖并且播送的越来越多的digitalized。因此，在那里产生关于数字数据的版权保护的一个重要问题。解决这个问题，这份报纸设计了并且实现一种空间数据watermarking服务(SDWS)能为数据办理提供一个安全框架并且经由因特网转并且同时保护版权主人和消费者的权利的系统。

简介：基于资源卫星介绍的遥感数据的解释，这份报纸说事实在Donghai岛的陆地使用区域，位于Zhanjiang的南方，广东省，因为象陆地开垦那样的人的活动，从1986～2010在25年里由576.71hm2膨胀了；同时，在土地的类型的大变化在岛上盖住发生了。在陆地使用的明确的变化在它的生态系统服务价值导致显著转变。因此，由在这使用Costanza方法，quantificationally在它的生态系统分析变化的纸在这个岛上满足；Costanza方法是每统一岛的区域显示出服务价值的一种计算技术。它从1986～2010被发现那，特别在最近的年里，由于在僵化，钢和港口工业，栽培土地的区域，树林，草地和沙漠的快速的发展在不同的度减少了，当时为住处的陆地，工业和交通建设和水和沼泽地的区域增加了。因而，与RMB547.57漠?潦的数字相比？

简介：Thewindenergyindustryhasbeengrowingrapidlyduringthepastdecades.Alongwiththisgrowth,engineeringproblemshavegraduallyemergedinthewindpowerindustry,includingthoserelatedtothestructuralreliabilityofturbinetowers.Thisstudyproposesarapidseismicanalysismethodologyforexistingwindturbinetowerstructures.Themethodisdemonstratedandvalidatedusingacasestudyona1.5MWtubularsteelwindturbinetower.Threefiniteelement(FE)modelsaredevelopedfirst.Fieldtestsareconductedtoobtaintheturbinetower’svibrationalcharacteristics.Thetestsinclude(1)remotelymeasuringthetowervibrationfrequenciesusingalongrangelaserDopplerVibrometerand(2)monitoringthetowerstructuralvibrationbymountingaccelerometersalongtheheightofthetubularstructure.In-situmeasurementsareusedtovalidateandupdatetheFEmodelsofthewindturbinetower.WiththeupdatedFEmodelthatrepresentsthepracticalstructuralconditions,seismicanalysesareperformedtostudythestructuralfailure,whichisdefinedbythesteelyieldingofthetubulartower.Thisresearchisanticipatedtobenefitthemanagementoftheincreasingnumberofwindenergyconvertersbyprovidinganunderstandingoftheseismicassessmentofexistingtubularsteelwindturbinetowers.

简介：Oceaninformationmanagementisofgreatimportanceasithasbeenemployedinmanyareasofoceanscienceandtechnology.However,thedevelopmentsofOceanInformationSystems(OISs)oftensufferfromlowefficiencybecauseofrepetitiveworkandcontinuousmodificationscausedbydynamicrequirements.Inthispaper,thebasicrequirementsofOISsareanalyzedfirst,andthenanovelplatformDPOIisproposedtoimprovedevelopmentefficiencyandenhancesoftwarequalityofOISsbyprovidingoff-the-shelfresources.Intheplatform,theOISisdecomposedhierarchicallyintoasetofmodules,whichcanbereusedindifferentsystemdevelopments.Thesemodulesincludetheacquisitionmiddlewareanddataloaderthatcollectdatafrominstrumentsandfilesrespectively,thedatabasethatstoresdataconsistently,thecomponentsthatsupportfastapplicationgeneration,thewebservicesthatmakethedatafromdistributedsourcessyntacticalbyuseofpredefinedschemasandtheconfigurationtoolkitthatenablessoftwarecustomization.Withtheassistanceofthedevelopmentplatform,thesoftwaredevelopmentneedsnoprogrammingandthedevelopmentprocedureisthusacceleratedgreatly.Wehaveappliedthedevelopmentplatforminpracticaldevelopmentsandevaluateditsefficiencyinseveraldevelopmentpracticesanddifferentdevelopmentapproaches.TheresultsshowthatDPOIsignificantlyimprovesdevelopmentefficiencyandsoftwarequality.

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简介：磅(基于地点的服务)是从GIS的发展的显著结果到geospatial信息服务。从下一代因特网和网提供的群众和机会由geospatial信息的要求面对了2.0，geospatial信息服务的一个新模型基于DMI(数字可测量的图象)被介绍。首先，磅的概念和网2.0的机会被介绍，然后，DMI的特征被讨论。拿图象城市

简介：Supportedbygeographicalinformationsystem,usingCostanzamethodandreferringtoterrestrialecosystemservicevalueinChina,theinfluenceoflanduseandlandcoverchange(LUCC)between1980and2000onecosystemservicevalueintheupandmiddlereachesofDongtingLakebasinwasanalyzedinthisstudy.Theresultsshowedthattheestimatedvalueofecosystemservicesdecreased8.4169×108CNYovera21-yearperiod,andthemainreasonswerethatthelandforforestusewasexploitedforcroplandandconstructionlanduseinstudyarea.Furtheranalysisresultsshowedthatthevalueofsingleecosystemservicefunctionsuchasgasregulation,climateregulation,soilformationandconservation,biodiversityconservation,rawmaterialsaswellasrecreationdecreasedsignificantly;andthatofprovisionofwaterconservation,wastetreatmentandfoodproductionincreasedobviouslyinthearea.Theresultsofcoefficientsensitivityanalysisindicatedthattheseestimateswerereliable.

简介：在这份报纸，我们在身体上正在坐在不同地方的很多可得到的空间数据来源的上下文为空间数据集成(SOA-SDI)建议面向服务的体系结构，并且基于SOA-SDI开发基于万维网的GIS系统，允许顾客应用程序到达，从那些可得到的空间数据的分析和现在的空间数据采购原料。建议建筑学逻辑地包括4层或部件；他们是多重数据供应商服务，数据集成的层，后端服务的层，和前端的层为空间数据表示的图形的用户接口(图形用户界面)。根据4-layeredSOA-SDI框架，WebGIS应用程序能快速被发布，它证明SOA-SDI有潜力减少软件开发的输入并且弄短开发时期。

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