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  • 简介:Thefivecentralcities-Beijing,Tianjin,Shanghai,GuangzhouandShenzhen-ofthethreemostimportantstrategicregionsinChina,namelyBeijing-Tianjin-Hebeimetropolitanregion,theYangtzeRiverDeltaandthePearlRiverDelta,aretakenasacomparativeanalysisonurbanproducerservices'competitiveness,especiallyfocusingonthecomparativeadvantagesanddisadvantagesofproducerservicesinBeijing.Firstly,basedonanintegratedindicatorsystemincludingoneobjectivehierarchy,fourstandardhierarchiesand35indicatorhierarchies,thestudyappliesfactoranalysismodelandanalytichierarchyprocessmodelreformedbyentropytechnologytomeasurethecomprehensivecompetitivenessofproducerservicesintheabovefivecities.Secondly,Beijinghascomparativeadvantagesofcapitalresource,industrialbase,scientificresearchresourceandmarketscale,sinceittakesthefirstplaceofthefivecitiesinthecomprehensivecompetitivenessofproducerservices,thecompetitivenessofindustrialdevelopment,businessenvironmentandlivingenvironment,onlyinferiortoShanghaiinthecompetitivenessoftalentcapital.Thirdly,Beijinghascomparativedisadvantagesinthelevelofproducerservicesdevelopment,urbaninnovationcapabilityandlivingenvironment.Finally,fiveproposalsareputforthtoenhancethecompetitivenessofproducerservicesinBeijing,namelyperfectingthesystemoflawsandstatutes,supportingthedevelopmentofindustryassociation,implementingscientificdevelopmentplanning,introducingpreferentialfiscalandtaxationpoliciesandstrengtheninghumancapitalreserve.

  • 标签: 生产性服务业 城市竞争力 北京 天津 上海 综合评价
  • 简介:在地区性的规模的动态城市的扩大模拟是在陆地使用/盖住变化(LUCC)和都市化影响的全球环境变化的重要研究方法论之一。然而,以前的研究显示为在本地规模的未来情形的单个城市的扩大模拟不能为描绘并且解释地区性的都市化和全球环境变化的交互机制满足要求。这研究构造了一个地区性的动态城市的扩大模型(Reg-DUEM)对由集成人工的神经网络(ANN)和细胞的自动机(CA)模型的不同情形合适。第一,我们分析了城市的扩大的时间、空间的特征并且获得了用陆地使用/盖住的规则改变的优先的知识Beijing-Tianjin-Tangshan的数据集大主教区域。在不同情形下面的城市的扩大当时是的未来基于一个基线模型,经济模型,政策模型和结构的调整模型模仿了。结果显示Reg-DUEM在宏政策影响的地区性的规模为非线性的扩大模拟有好可靠性。模仿的结果显示出从大城市的区域的不同情形的城市的扩大模式有的那未来巨大的时间空间的差别。未来城市的扩大将沿着沿海的带从北京宗主国快速变到天津和Tangshan城市的圆周。

  • 标签: 城市扩张 动态模拟 都市圈 京津唐 土地利用/覆盖 全球环境变化
  • 简介:Gravityvariationdataobservedintheprocessofseismogenesisandoccurrencesofearthquakesshowthatthelocationwiththegreatestgravitychangesdoesnotnecessarilycoincidewiththeepicenter.Toexplainthiswedefinedthecenterofeffectivemassofstressvolumeas"hypocentroid",andtheverticalprojectionofwhichontheearth'ssurfaceas"epicentroid".Hereweadoptthreerotatingmodels,includingspheroid,ellipsoidandcylinder,torepresenttheregionofanimpendingearthquake.Basedonthemodelsofgravityvariationsinducedbyuniformdilatancy,epicentroidsassociatedwithsixteenearthquakeswithM>4.0occurredin1981~2000intheBeijing-Tianjin-Tangshan-Zhangjiakouregionaredeterminedbymeansofaproposedleastsquaresiterativeinversionmethod.Theresultsindicatethatcylindermodelispreferabletotheothertwo,andepicentroidsobtainedbythecylindermodelseparatefromtheepicentersbyarangeof0~40km.Epicentroidsareinevitablylocatedwithinintacttectonicblocks,andusuallyclusteringroups;whiletheepicentersaregenerallylocatedattheterminationsoffaultsorattheintersectionsoffaults.Itseemsthatthereexistearthquake-hatchingareasintheblockamongfaults.Earthquakeshatchintheseareas,butoccuraroundtheseareas,meanwhiletheexistenceoffaultsmayplayanimportantroleincontrollingtheprocesses.

  • 标签: 重力变化 膨胀模型 地震 北京-天津-唐山-张家口区域
  • 简介:在瓷器革新驱动的发展策略下面,风险资本在城市的凝块集成和合作革新成为了一个重要驱动力。这份报纸使用社会网络分析为时期2005-2015在Beijing-Tianjin-Hebei城市的凝块分析风险资本的空间与时间的差别。一个严肃模型和面板数据回归模型被用来在这个区域在风险资本在空间与时间的差别上揭示影响因素。这研究发现在在北京的风险资本网络有某个轮转的变化和不平的区别--Tianjin-Hebei城市的凝块以全部的投资,并且风险资本(北京,Shijiazhuang和Tangshan)的三个中心在包围城市上有stimulatory效果;在城市之间的风险资本的流动显示某些联网规则,而是他们是慢的发展并且强烈向心;在信息基础结构开发和经济开发和风险资本投资的层次之间有强壮的积极关联;并且有相对不发达的金融环境和服务工业的地方不太能使用革新和entrepreneurship的水果并且吸引资金。这研究能在在中国与最好的革新能力造世界级的超级城市的凝块里为Beijing-Tianjin-Hebei城市的凝块充当一本参考书。

  • 标签: 风险资本 超级城市 影响因素 信息基础结构 网络分析 回归模型
  • 简介:Withinthebackgroundoftheneedtopromotetheconstructionofecologicalcivilizationandthecurrentconflictbetweentheeconomicgrowthandtheconstraintsofenvironmentandresources,afterareviewofthetheoreticalstudyandpracticalexplorationofecologicalcivilization,thearticlemakesananalysisofthestatusquoofecologicalcivilizationdevelopmentinBeijing,Tianjin,andHebeiarea,sumsupthemainproblemsthere,andexploresthedevelopmentstrategicframeworktoimprovetheregionalecologicalenvironment.Itcomestothefollowingconclusions:astheecologicalandenvironmentalproblemsintheBTHareaaremainlytheairpollutionandsoon,weshouldseektobuildamechanismofenvironmentalmanagementforsustainabledevelopmentfromthedifferentaspectsofindustrialdistribution,energyutilization,institutionconstructionandmarketparticipation.Weshouldcapitalizeonthechancetoconstructtheecologicalcivilization,promotetochangetheregionaleconomicgrowthpattern,improvethequalityandefficiencyofdevelopment,andfinallypromotethesynergeticdevelopmentofecologicalenvironmentintheBTHarea.

  • 标签: ECOLOGICAL CIVILIZATION environmental management mechanism the
  • 简介:在地区性的规模的不可渗透的表面区域(ISA)是为在都市化和全球环境变化的相互作用下面检验陆地使用/盖住变化(LUCC)生态系统过程气候变化的相互作用和机制的重要环境因素之一。从在地区性的规模的遥远地察觉到的数据的ISA的及时、精确的抽取是挑战性的。这研究基于MODIS和DMSP-OLS数据和瓷器陆地使用/盖住数据的加入探索了ISA抽取。在在250m的一个空间决定的在2000和2008的Beijing-Tianjin-Tangshan大城市的区域(BTTMA)的ISA数据集被开发,他们的空间与时间的变化被分析,并且他们水质量上的影响然后被评估。结果显示在BTTMA的ISA从2000~2008在紧张和程度两个都沿着城市的穗,交通走廊和沿海的带很快增加了。在Hebei省的三个城市(Tangshan,Langfang和Qinhuangdao)有生长在导致逐渐地把工业转移到附近的区域的城市里由于population-resources-environments的压力比北京评估的更高的ISA。在BTTMA的稠密的ISA分发在Haihe河分水岭在水质量上有严肃的影响。同时,在亚分水岭的ISA的比例与河货到付款和NH3-N的密度有显著地线性的关系。

  • 标签: 都市圈 京津唐 水环境 表面积 影响评价 不透水
  • 简介:Theinversionof3┐DcrustalstructureandhypocenterlocationintheBeijing┐Tianjin┐Tangshan┐Zhangjiakouareabygeneticalgo┐rithmYONG-G...

  • 标签: GENETIC ALGORITHM HYPOCENTER CRUSTAL STRUCTURE INVERSION
  • 简介:"ThereisasayingaboutBeijing,itgoes:sheisthelover,themotherofeveryone.ItseemsthatBeijingpos-sessthismagicalattractiontoeveryonecomingtoher".Everyone,livinginBei-jingorevenspentsomemomentshere,keepsavividpictureofBeijingintheireyesandhearts.Now,let'slistentowhattheywouldliketosayaboutthiscity.

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  • 简介:TheFourthBeijingForumonhumanRightswasheldinBeijingfromSeptember21-23,2011.JointlysponsoredbytheChinaSocietyforhumanRightsStudiesandtheChinahumanRightsDevelopmentFoundation,theforumwascenteredonthethemeof'CulturalTradition

  • 标签: 人权 北京 论坛 文化传统 国际组织 基金会
  • 简介:Tianjin,aportcitynotfarfromBeijing,haspulleddown10.13millionsquaremetersofwhatisknownas"dangerousanddilapidatedbuildings"andmoved1.4millionresidentsintoall-inclusiveapartmentbuildings.ItwasestimatedthatabouthalfoftheTianjinresidentshavebeeninvolvedintheface-liftingproject.

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