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城市引力模型
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  gravitational models of cities
     Partition of metropolitan circles of Liaoning based on new gravitational models of cities
     新城市引力模型下辽宁省城市圈的划分
短句来源
     By application of New Gravitational Models of Cities a new city composition 14 cities in Liaoning province are analysed.
     并运用新城市引力模型对辽宁省14个城市进行数据分析,并以沈阳与大连两个优势城市为中心计算城市引力。
短句来源
     New Gravitational Models of Cities involve new parameter produced by city function,intra-city economic distance and modified corrective population. The model analyses the relation between the city function and the city gravitation deeply.
     新城市引力模型引入城市职能参数,人口修正参数和经济距离修正参数,改进原来简单的城市引力模型,深入探讨城市职能对城市引力的影响。
短句来源
  city gravitation model
     According to the city gravitation model,the article deduces the curve equation of the boundary of the city's attracting scope and studies the automatic forming method of the curving Voronoi polygon.
     根据城市引力模型导出了城市吸引范围的边界曲线方程 ,探讨了曲边Voronoi多边形的自动生成方法。
短句来源
  “城市引力模型”译为未确定词的双语例句
     A Fractal City-Gravity Model Based on Correlation Function Revision and Development of Reilly-Converse's Model
     基于互相关函数的分形城市引力模型——对Reilly-Converse引力模型的修正与发展
短句来源
     The Gravitational Models of Franctal Cities: Theoretical Basis and Applied Methods
     分形城市引力模型的一般形式和应用方法——关于城市体系空间作用的引力理论探讨
短句来源
     The theoretical foundation is laid and the applied methods are demonstrated for the gravitational models of fractal cities. The generalised urban gravitation expression is derived out as I ij =G ij M α i iM α j jr -b ij by means of the geographical fractal theory, especially, the city size output relationship, y=CP α.
     基于分形思想和城市规模—产出关系推导出城市引力模型的一般形式Iij=GijMαii MαjjR-bij ,论证了参数α和b的分维性质 ,并将引力系数定义为Gij=G|Rij| / ( 1+Sij) ,式中Rij为i、j两城市的相关系数 ,Sij为二者的相似系数 ,G为量纲转换系数。
短句来源
     On these bases, the paper discusses the topic that accelerating agro-urbanization is the propeller for CHANG ZHU TAN to realize economic integration, beginning from the model of gravitation among cities.
     在此基础上 ,从城市引力模型入手 ,全方位地论述了“加速农村城市化是长株潭经济一体化发展的推进器”这一基本观点。
短句来源
     In this paper,the gravitation field model based on traffic time is built,which comes from the gravitation model amended,and the parameters have also been discussed.
     本文在对原有城市引力模型加以修正的基础上引入城市引力场概念,建立了城市轨道交通条件下以交通时间为基础的城市引力场模型,并对参数的影响因素和变化趋势进行了讨论。
短句来源
  相似匹配句对
     Virtual City Model
     虚拟城市模型
短句来源
     Partition of metropolitan circles of Liaoning based on new gravitational models of cities
     新城市引力模型下辽宁省城市圈的划分
短句来源
     The model of system structure on digital city
     数字城市体系结构模型
短句来源
     E model of CRM.
     E模型
短句来源
     E City
     e城市
短句来源
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  gravitational model
Gravitational model of the Taiwan lithosphere (along the profile Taiwan Strait-Taiwan Island-West Philippine basin)
      
The formation of Saturn and its disk is simulated using a new N-body self-gravitational model.
      
This gravitational model accounts for the 3-quark saturation of baryons, since no stable gravitational configuration consisting of more than 3 particles exists.
      
The branching ratios of Θ- calculated from a gravitational model of baryons
      
I use the gravitational model of baryons introduced in previous papers to calculate the branching ratios of the strangeness - 3 baryon Θ-.
      
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A new type of gravity model of cities, F(r,τ)=GR ij (τ)r -D ,was deduced from Reilly-Converse's model, I ij =GQ iQ jr -b ,through introducing time function,Q=f(t),and time-delay parameter,τ,to the latter,and in the former, R ij (τ)=∫f i(t)f j(t+τ) dt is a correlation funtion.The gravity coefficient,G,was defined as the maximum correlation coefficient of the variables Q i and Q j ,and the exponent,b,proved to be a generallized fractal dimension.

引入时间函数Q=f(t)和时滞参数τ,借助互相关函数R(τ)=∫fi(t)fj(t+τ)dt,将城市引力模型Iij=GQiQjr-b由瞬间关系推广到相关过程,化为具有分形特征的引力模型Fij(r,τ)=GRij(τ)r-Dij,其中G被定义为城市间的最大相关系数,D(由b推广而来)具有广义的分形维数性质。

The theoretical foundation is laid and the applied methods are demonstrated for the gravitational models of fractal cities. The generalised urban gravitation expression is derived out as I ij =G ij M α i iM α j jr -b ij by means of the geographical fractal theory, especially, the city size output relationship, y=CP α. The parameters, α and b , are made clear to have some meanings of fractal dimension, and the gravitational ceofficient is defined as G ij ...

The theoretical foundation is laid and the applied methods are demonstrated for the gravitational models of fractal cities. The generalised urban gravitation expression is derived out as I ij =G ij M α i iM α j jr -b ij by means of the geographical fractal theory, especially, the city size output relationship, y=CP α. The parameters, α and b , are made clear to have some meanings of fractal dimension, and the gravitational ceofficient is defined as G ij =GC iC j|R ij |/(1+S ij ) ,where G is a dimensional transformation coefficient, C is a proportional coefficient, R ij is a coefficient of correlation, and S ij is a coefficient of similarity. The gravitational theory developed by the authors in the paper is applied to the urban system of Changchun in Jilin and the cities of Zhengzhou, Kaifeng,and Luoyang in Henan, China, to show how to use the gravitation models in practice, and based on the examples mentioned above, it is discovered that the resultant of gravitational forces between a city and each of the other cities in an urbon system conforms to the rank size rule in due conditions, i.e., F i(k)=F 1k -q ,where F i=∑jI ij , k is rank, and F 1 and q are parameters.

基于分形思想和城市规模—产出关系推导出城市引力模型的一般形式Iij=GijMαii MαjjR-bij ,论证了参数α和b的分维性质 ,并将引力系数定义为Gij=G|Rij| / ( 1+Sij) ,式中Rij为i、j两城市的相关系数 ,Sij为二者的相似系数 ,G为量纲转换系数。以长春城镇体系和郑、汴、洛点—轴系统为实例说明了模型的应用方法 ,并指出了城市引力数值的相对性特征。作者发现 ,城镇体系各要素的引力之和Fi=∑jIij,在一定时空条件下满足位序—规模法则F(k) =F1K-q(k =1,2 ,… ,n) ;这也表明 ,借助引力计算可以揭示城市体系某些隐含的地理规律。

The paper analyzes in detail the bottle-neck for CHANG ZHU TAN to realize economic integration-urbanization level being low which focuses on urbanization lagging industrialization and non-agriculture, scale of town being small, the actual economic strength being weak, the construction of infrastructure being bad, etc. On these bases, the paper discusses the topic that accelerating agro-urbanization is the propeller for CHANG ZHU TAN to realize economic integration, beginning from the model of gravitation among...

The paper analyzes in detail the bottle-neck for CHANG ZHU TAN to realize economic integration-urbanization level being low which focuses on urbanization lagging industrialization and non-agriculture, scale of town being small, the actual economic strength being weak, the construction of infrastructure being bad, etc. On these bases, the paper discusses the topic that accelerating agro-urbanization is the propeller for CHANG ZHU TAN to realize economic integration, beginning from the model of gravitation among cities. Finally, the paper points out that in order to push on economic integration of CHANG ZHU TAN we must accelerate town construction and agro-urbanization through devoting major effects to developing secondary industry and tertiary industry, further deepening reforms, developing cultural quality of peasant and carrying on strategy of important development.

本文深入分析了长株潭经济一体化发展的瓶颈因素—城市化水平低 ,集中表现在 :城市化滞后于工业化和非农化、小城镇规模小、经济实力薄弱和基础设施建设滞后等方面。在此基础上 ,从城市引力模型入手 ,全方位地论述了“加速农村城市化是长株潭经济一体化发展的推进器”这一基本观点。并指出 ,要实施重点发展战略 ,通过大力发展二、三产业 ,进一步深化改革 ,提高农民文化素质等措施 ,加快小城镇建设 ,加速农村城市化进程 ,进而推进长株潭经济一体化发展。

 
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