简介：考虑带启动期的Geo／Geo／1单重工作休假排队系统，简记为Geo／Geo／1／SWV。服务台在休假期间，不是立即停止服务，而是以较低的服务率为顾客提供服务。应用拟生灭链以及矩阵几何解的方法，本文给出了稳态下顾客数的概率分布、平均队长以及顾客的平均逗留时间，最后通过数值例子说明我们的模型可以较好的模拟一些实际问题。

简介：Roughsetisanewapproachtouncertaintiesinspatialanalysis.Inthispaper,roughsetsymbolsaresimplifiedandstandardizedintermsofroughinterpretationandspecializedindication.Roughspatialentitiesandtheirtopologicalrelationshipsarealsoproposedinroughspace,thusauniversalintersectedequationisdeveloped,androughmembershipfunctionisfurtherextendedwiththegrayscaleinourcasestudy.Wecompletethreeworks.First,asetofsimplifiedroughsymbolsisadvancedonthebasisofexistingroughsymbols.Second,roughspatialentityisputforwardtostudytherealworldasitis,withoutforcinguncertaintiesintocrispset.Third,roughspatialtopologicalrelationshipsarestudiedbyusingroughmatrixandtheirfigures.Therelationshipsaredividedintothreetypes,crispentityandcrispentity(CC),roughentityandcrispentity(RC),androughentityandroughentity(RR).Auniversalintersectedequationisfurtherproposed.Finally,themaximumandminimummapsofriverthematicclassificationaregeneratedviaroughmembershipfunctionandroughrelationshipsinourcasestudy.

简介：CopyrightSubmissionofamanuscriptimplies:thattheworkdescribedhasnotbeenpublishedbefore(exceptintheformofanabstractoraspartofapub-lishedlecture,review,orthesis);thatitisnotunderconsiderationforpub-licationelsewhere;thatitspublicationhasbeenapprovedbyallco-authors,

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简介：Ageo-referenceisaglobalorregionalgeographicalorgeodeticcoor-dinatesystemtowhichsensorsorspatialobjectdataarerelated.Hence,geo-ref-erencingisclosetothewellknownphotogrammetricconceptofexteriororabso-luteorientation,thecommonexecutionofwhichisindirect,viatheuseofgroundcontrolpoint.GPSandINStechnologieshavechangedthesituation,permittingdirectmeasurementofpositionandattitudeparametersandmakingexteriororien-tationfeasiblewithoutgroundcontrolatall,inprinciple.Theanalysisofaccuracyandreliabilityperformancediscloses,however,thatespeciallyINSdoesnotyetmeetthehighdemandsofphotogrammetry.Moreover,controlofsystematicer-rors,theproblemofdatumtransformation,andreliabilityconditionsmaketheuseofsomegroundcontrolpointsstillmandatory,atleastforanyhighperfor-mancegeo-referencing.

简介：与因特网的开发一起，分享的geo信息和为GIS申请增加重要性的开的GISare回答。西南的中国由几个省或区域组成，他们是四川，贵州，云南，重庆，等等。在他们之中的Theeconomic和信息合作具有意义。为基于万维网服务为西南的中国分享的资源和环境geo信息的飞行员站台，OGC(开的GISConsortium)WFS(网特征服务)被构造。经由这个飞行员平台，分享模式的一个松开的信息能被实现改进他们的合作水平。

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简介：Geo-spatialInformationSciencewasfoundedin1998byWuhanUniversity,andisco-publishedworldwidelybySpringer(http://www.springer.com/geography/gis+cartogra-phy/journal/11806)andWuhanUniversity.Itbasicallyprovidesacommunicationplatformfortheworldscientistsandprofessionals,whoseworkismainlyinthe

简介：Urbangeo-environmentmainlyconcernsthoseregardsinandaroundacity,suchasthemovementofearthcrustandearthsurface,conditionsofhydrology,geology,geographyandmeteorology.Therelevantstudiesongeo-disasterreductionandtheinfluencesresultedfromhumanactivitiesonthegeo-environmentareincludedaswell.Itisstressedinthepaperthatgeo-environmentalprotectionandmanagementareofsignificancetothesustainabledevelopmentforChinesecities.

简介：SinceAsiahasgainedmoregeopoliticalandeconomicweight,allpartiesshareastrongsenseofstrategicurgencybecausetheirstrategiesontheAsia-Pacificwilldirectlyaffecttheirfuturedevelopment.PeaceanddevelopmentremainthethemeoftheAsia-PacificandChinashouldpromotemutuallybeneficialdevelopmentintheAsia-Pacific.

简介：Three-dimensional(3D)flowerlikehierarchicalZn2GeO4andMn2+-dopedZn2GeO4microstructureshavebeenpreparedbyafacilehydrothermalapproach.X-Raydiffraction(XRD),fieldemissionscanningelectronmicro-scopy(FESEM),transmissionelectronmicroscopy(TEM)andphotoluminescence(PL)spectrometrywereemployedtocharacterizethesamples.SuchflowerlikehierarchicalZn2GeO4microstructureswithanaveragediameterof3―4μmwerefoundtobeconstructedbyabundantsinglecrystallinenanorodsofabout90nmindiameter.TheluminescentpropertiesofZn2GeO4:xMnphosphorswithdifferentcontentsofMn2+asanactivatorwereinvestigated.TheMn2+-dopedsamplesshowedgreenluminescencecorrespondingtothed-dtransitionofMn2+undertheirradiationofUVlight.Theredshift(from531nmto538nm)inλemwithincreasingMn2+contentwasobservedintheluminescentspectra,whichshouldbeattributedtoaweakcrystalfieldbecauseofthesubstitutionofZn2+byMn2+atadistortedtetrahedrallatticesite.

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简介：SupportVectorMachine(SVM)isapowerfulmethodologyforsolvingproblemsinnon-linearclassification,functionestimationanddensityestimation,whichhasalsoledtomanyotherrecentdevelopmentsinkernelbasedmethodsingeneral.Thispaperpresentsahighaccuracyandfault-tolerantSVMforthemobilegeo-locationproblem,whichisanimportantcomponentofpervasivecomputing.Simulationresultsshowitsbasiclocationperformance,andillustrateimpactsofthenumberoftrainingsamplesandtrainingareaontestlocationerror.

简介：“Seminarforhydrocarbondetectionwithcompositegeophysical/geo-chemicaltechniques”,jointlyorganizedbyChinapetroleumExploration&ProductionCompanyandExplorationGeophysicalCommitteeofCGSandsupportedbytheCompositeGeophysical/geo-chemicalDepartementofOrientalGeophysicalCompanyandChinaExploration&DevelopmentResearchInstiute,

简介：Throughanalyzingtheprincipleofdatasharinginthedata-basesystem,thispaperdiscussestheprincipleandmethodforintegratingandsharingGISdatabydataengine,introducesawaytoachievethehighintegrationandsharingofGISdataonthebasisofVCTinVC++,andpro-videsthemethodforunitingVCTintoRDBMSinordertoimplementaspa-tialdatabasewithobject-orienteddatamodel.

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简介：GEO卫星在导航系统中发挥着基本导航、增强和转发等三大功能。针对北斗系统GEO卫星的特殊性和兼容性,对北斗GEO卫星播发的D2导航电文的特点进行了分析,利用GEO的静地特性在基带信号处理中应用数学思想提出了基于二次函数逼近的快速牵引,推导了GEO卫星位置速度的计算公式,提出了基于模糊控制的GEO伪距测量算法,提高了信号处理通道的通用性和兼容性。对相关算法和策略在基于DSP＋FPGA的软件接收机中利用实际信号进行了验证,在省略精捕获时间的情况下实现了50Hz以下的多普勒频移精度,伪距测量方法的通用性节省了50%的资源和工作量,相关算法具有良好的实用价值。

简介：Inthepost-ColdWarera,CentralAsia'suniqueandimportantgeo-politicalandeconomicvaluesarebeinghighlightedandareincreasinglybecomingthefocusofcontentionamongbigpowersandregionalpowers.Itprovidesbothopportunitiesandchallenges.ToturnchallengesintoopportunitiesandconsolidateandmakebestuseoftheopportunitiesshouldbecometheprioritygoalofChina'sCentralAsiapolicy.

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简介：最近，在geovisualization的领域里积累的专家知识在抽象多维的数据的可视化发现了申请，根据调用spatialization方法的方法。Spatialization方法瞄准由使用空间比喻和适用的尺寸减小技术设想多维的数据直到低维的具象主义的空格。空间比喻能在颗粒度的不同层次为信息的可视化提供一个metaphoric框架。现在的论文做颗粒度的问题怎么在spatialization方法的代表性的例子的上下文被处理的调查。而且，这份报纸介绍原型工具Geo花茎，它为在颗粒度的不同层次代表并且探索多维的数据提供交互spatialization环境，由使用一种核密度评价技术并且在风景光滑比喻上。一种示范情形靠着表演被介绍Geo花茎怎么帮助发现知识进数据的一个大集合，由组织他们进根据一项类似措施的有意义的簇并且在颗粒度的不同层次组织他们。