首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   115篇
  免费   12篇
  2020年   3篇
  2019年   3篇
  2018年   5篇
  2017年   6篇
  2016年   6篇
  2015年   8篇
  2014年   7篇
  2013年   49篇
  2012年   2篇
  2011年   4篇
  2010年   3篇
  2009年   1篇
  2007年   1篇
  2006年   6篇
  2005年   3篇
  2004年   3篇
  2003年   3篇
  2002年   1篇
  2001年   2篇
  2000年   4篇
  1999年   1篇
  1997年   3篇
  1988年   1篇
  1969年   1篇
  1966年   1篇
排序方式: 共有127条查询结果,搜索用时 31 毫秒
101.
This article carries out an analysis of the European Spatial Development Perspective (ESDP), a policy document which represents a critical moment in the emergence of a new discourse of European spatial development. The analytical approach probes at the power relations which have shaped the ESDP framework and its contents, focusing on the twin core themes of spatial mobility and polycentricity. The analysis concludes that in the contested policy process a new spatial discourse of economic competitiveness is emerging at the expense of social and environmental interests. This new discourse will be further contested as implementation takes place in an uncertain policy environment.  相似文献   
102.
103.
104.
We document the geographic concentration patterns of Russian manufacturing using detailed microgeographic data. About 80% of three-digit industries are significantly agglomerated, and a similar share of three-digit industry pairs is significantly coagglomerated. Industry pairs with stronger buyer–supplier links—as measured using Russian input–output tables—tend to be slightly more coagglomerated. This result is robust to instrumental variable estimation using either Canadian or US instruments. Using Canadian ad valorem transport costs as a proxy for transport costs in Russia, we further find that industries with higher transport costs are more dispersed, and industry pairs with higher transport costs are less coagglomerated.  相似文献   
105.
106.
Donald Trump's recent election victory has been greeted with horror and disbelief by many. In particular, the glaring inconsistencies and open self‐contradictions that marked his campaign should have rendered him unelectable by the standards of conventional reasonable political practice. But rather than being a problem to be explained away, it is Trump's open embrace of contradiction that explains much of his appeal. By holding contradictory trends and opinions simultaneously, he presents himself as being capable of embodying seemingly mutually exclusive social trends, such as an intensification of economic competition on the one hand and a radical denunciation of that competition's effects on some of the losers from that process on the other. By doing so, he presents himself as a powerful figure with charismatic abilities to contain such contradictions within himself – abilities that are not available to ordinary career politicians, but that are strikingly reminiscent of the powers attributed to so‐called ‘trickster’ figures in anthropological literature.  相似文献   
107.
108.
109.
ABSTRACT

The photorealistic and geometrically accurate 3-dimensional representation of excavations, provided by image-based modeling, has the potential to transform the process of excavation documentation, making it easier to share observations with other researchers. Paradoxically, however, spatial representation lacks the ability to convey archaeological interpretations. By example of excavations in Alken Enge, Denmark, this paper explores how a web-based 3D platform is able to facilitate the collaborative exchange of 3D excavation content and how the integration of spatial and attribute data into one common event-based data model may be advantageous. This includes enhancing the semantic value of field-recorded 3D models by segmenting the geometry using various techniques, such as 3D projections and machine learning. Accordingly, the paper demonstrates a framework for interactive 3D models, which includes attributed classification based on segmented 3D content correlated with traditional raster, vector, and textual data, delivering a spatially integrated platform for collaborative research.  相似文献   
110.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号