排序方式: 共有45条查询结果,搜索用时 15 毫秒
31.
Urban spatial growth has become a hot topic of geographic science and urban research.Exploring the patterns and mechanisms of urban growth is the prerequisite to understand the urbanization process of China.The paper provides a spatial analysis method of using Remote Sensing(RS)and Geographic Information System(GIS),and presents major patterns and mechanisms of urhan spatial growth during the period from 1979 to 2007 in Nanjing City.Firstly,the paper introduces the data,study area and methodology of the research.Then,the patterns of urban spatial growth are identified.Subsequently,the main mechanisms of urban spatial growth are analyzed.Finally,some conclusions are drawn definitely.The features of urban spatial growth in Nanjing are as follows: during 1979-1988,urban spatial growth of each district was slow,and the inner growth was in excess of suburban growth;during the period of 1988-2000.urban growth of suburban was in excess of inner city the most insensitive growth appeared in the southeast,and the growth of each aspect was relatively insensitive expect east and west; during the period of 2000-2007,urban growth of suburban was violent,the most insensitive growth appeared in the southeast,and the urban growth of each direction was insensitive except the west.The mechanisms of urban.spatial growth are complex,the main ones of which are social and economic development.Besides,the guiding of urban planning and influence of urban spatial structure are quite obvious. 相似文献
32.
从图案学角度来讲,影人的形式美来源于影人独特的构形,而影人形式美的技术在于装饰纹样的巧妙运用。海宁皮影影人的装饰纹样构形主要采用了散点平置、"共生造型"、"S"构形法进行构图,在构图节奏和色彩运用上注重变化与均衡,基本形成了自身独特的皮影构形技术体系。 相似文献
33.
中国省际资本服务测量:概念、框架和指数构建 总被引:1,自引:0,他引:1
在提出资本服务是衡量资本投入最为恰当指标的基础上,梳理了资本流量视角下基于“年龄—效率”函数和资本租赁价格的资本服务测量框架,首次测量中国省际资本服务。研究发现,1994~2010年三大地区平均资本服务从高到低依次为东部(2.86)、中部(2.77)、西部(2.67);东部资本服务均高于全国水平,三大地区资本服务差距逐步减小。此外,资本存量总额指数增长快于资本服务,而这与资本存量总额是否高估中国资本投入密切相关。 相似文献
34.
商业银行监管的国际比较:模式及影响——兼论中国的商业银行监管模式选择 总被引:13,自引:0,他引:13
本文系统研究了世界上 1 1 8个国家 (地区 )的商业银行监管模式及其对金融发展水平的影响。基于以下四种维度的不同组合 :1 )政府拥有银行的程度 ;2 )政府直接监管银行的力度 ;3 )政府授权非政府机构进行监管的力度 ;4)明确的存款保险制度涵盖范围 ,我们把世界各国 (地区 )的商业银行监管模式划分为三大类 :1 )印度 -中国型 ;2 )南非-菲律宾 -墨西哥型 ;3 )德国 -美国 -瑞士 -法国型。比较不同的监管模式 ,在促进金融业发展方面 ,德国 -美国 -瑞士 -法国型的监管模式最佳 ,南非 -菲律宾 -墨西哥型次之 ,而印度 -中国型最差。比较中国的商业银行监管模式与世界平均水平以及德国和美国的差异 ,结果显示了中国过多的对政府拥有银行和直接的事先监管的依赖。 相似文献
35.
农村劳动力非农化与种植模式变迁——以江汉平原稻农水稻种植为例 总被引:5,自引:0,他引:5
20世纪80年代以来,中国南方双季稻区出现的双季稻改单季稻已经造成水稻播种面积的减少,近年来直接影响到稻谷产量的增长。本文在新古典假设下,构建了农户行为模型,利用单位概率模型对影响江汉平原稻农水稻种植模式变化的深层次因素进行了分析,结论发现除气候变化等自然因素外,非农活动增加而引起的劳动力不足是导致双季稻改单季稻的主要原因。 相似文献
36.
Business growth is considered a worthy goal for firms and a measure of entrepreneurial success, as well as important for economic development. Why some firms grow and others do not, though, remains a subject of debate. Of the small proportion of firms that do grow, it is often assumed that they follow a similar growth trajectory and/or encounter certain stage thresholds; however, the evidence base on this is wanting. The new study of business growth presented here provides an in-depth analysis of 19 New England-based firms. Our findings reveal that fast-growing companies exhibit different rates and patterns of growth: some display rapid growth trajectories (Rapid Growth Pattern); some, slower, more measured rates (Incremental Growth Pattern); others, episodic periods of quick growth followed by sharp retrenchment (Episodic Growth Pattern); and, while no firm actively chose to stop growing, some reached points of stagnation (Plateau Growth Pattern). We found that three key factors—management, marketing, and money—affected company growth across these patterns. While not every factor was critical at each moment of growth for each firm, every entrepreneur cited the relative importance of each factor at some time during the growth of their firm. Thus, fast-growing firms do not grow in the same manner, at the same rate, or with the same outcomes. This article has implications for those seeking to understand the processes of development and patterns of fast-growth businesses. 相似文献
37.
Reported is a formal investigation of store patronage in urban China. Using consumer panel data for sales of packaged goods through store types and named store chains, patterns of sales, loyalty and duplication are examined. Observed patterns are benchmarked against predictions from the NBD-Dirichlet model. Findings are generalized across six product categories in the packaged-goods retailing sector of Shanghai. Crucial aspects of store type/chain patronage are shown to be regular and predictable: patronage levels co-vary with market shares, average frequencies of patronage do not vary as much, few consumers are exclusively loyal, a majority of consumers are divided in their loyalty, and they patronize other store types/chains in line with market shares. Special groupings of store types/chains are not found. All these results occur for the buying of both contemporary and traditional products. 相似文献
38.
产业集群是区域竞争优势的源泉,是工业现代化的新载体,已成为吸引外资、加快区域经济发展的主导力量,其对区域经济的规划和经济政策调整、推动区域产业链的互动有着重要作用。浙江省余姚塑料产业从20世纪80年代末的小行业发展为现在中型规模的产业集群,对区域经济的发展具有巨大的影响。通过对余姚塑料产业现状的分析和"三城互动模式"的提出及阐述,分析了余姚塑料产业对周边区域经济所产生的影响,试图寻找一条更适合于塑料产业发展的路径。 相似文献
39.
Birger Lantow Kurt Sandkuhl 《International Journal of Intelligent Systems in Accounting, Finance & Management》2015,22(1):81-99
Ontology design patterns (ODPs) provide best-practice solutions for common or recurring ontology design problems. This work focuses on content ODPs, which form small ontologies themselves and thus can be subject to ontology quality metrics in general. We investigate the use of such metrics for content ODP evaluation in terms of metrics applicability and validity. The quality metrics used for this investigation are taken from existing work in the area of ontology quality evaluation. We discuss the general applicability to content ODP of each metric considering its definition, ODP characteristics, and the defined goals of ODPs. The research process presented in this paper has two phases. In the first phase, we conducted a literature research in the area of metrics for assessing ontology quality. The second phase consisted of a two-step evaluation of the ontology metrics identified in the literature analysis. During the first step, we investigated whether the metrics are appropriate to differentiate between content ODPs of different quality. Metrics that proved to be applicable were calculated for a random set of 14 content ODPs. In the second step, a controlled experiment, the quality indicated by the metric value was contrasted with the perception of ontology engineers; that is, do ‘measured quality’ and ‘perceived quality’ match?. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
40.
影响区域金融集聚的因素有很多,诸如政府政策、金融产业特性、资源禀赋、信息流动、金融地理运动、实体经济等。我国的区域金融中心大都处在积累建设期,区域金融集聚发展处于起步阶段。梳理我国各城市在金融集聚发展中结合自身情况走出的不同发展路径,其中存在一些不足,在反思的基础上可对我国不同区域金融集聚提出相应的发展对策和建议。 相似文献