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   21篇
  免费   1篇
  2024年   1篇
  2021年   1篇
  2020年   1篇
  2018年   2篇
  2015年   1篇
  2014年   1篇
  2013年   5篇
  2012年   2篇
  2011年   2篇
  2009年   1篇
  2007年   2篇
  2006年   1篇
  2005年   1篇
  2000年   1篇
排序方式: 共有22条查询结果,搜索用时 15 毫秒
1.
根据阿拉伯——伊斯兰舆地文献,结合汉籍文献记载,考辨了9—10世纪自地中海到中国的陆路交通路线。中亚到中国的道路起于呼罗珊的木鹿,中亚地区的布哈拉、撒马尔罕、扎敏、怛逻斯和碎叶是重要的交通枢纽,而花剌子模是中亚与东南欧及北欧贸易的中心及货物集散地。  相似文献   
2.
This article deals with the access to global markets via inclusionin global value chains for private clothing producers in Vietnam.It argues that ‘chain entry barriers’ are not onlyconstructed by global buyers as it is often suggested, but alsoby political–economic processes in Vietnam. The marketorientations of four segments of private enterprise owners isexamined and shown to correspond to their ethnicity, originand location in northern or southern Vietnam. It is argued thatthis is mostly because these factors influence access to thestate system, where export-related resources are found.  相似文献   
3.
In Quebec, 75% of the province's elected municipal officials hold office in municipalities with fewer than 10,000 inhabitants. While we know that the demographic size of a municipality is likely to influence the career path and profile of elected officials and, more generally, the professional nature of elective office, to the best of our knowledge, little has been written about this relationship in Quebec municipalities with fewer than 10,000 inhabitants. This is surprising given the institutional, political, and financial context can vary greatly depending on the size of the municipality and is thus likely to influence the nature of the day-to-day elective office. Using a methodology based on semi-structured interviews with roughly 30 elected officials, our study highlights two specific characteristics. Some believe the nature of their elective office to be the same as that held by their counterparts in large municipalities, so they feel that they are not equipped with the same tools to meet the needs of their office. Some perceive the conditions under which they exercise their office are different, so they note the scope of their task is heavy, impacting their daily lives. These findings point to the need for further studies on the management of these smaller municipalities.  相似文献   
4.
Little is known of hard-rock coastal landsliding in Scotland. We identify 128 individual coastal landslides or landslide complexes >50 m wide along the coasts of Shetland. Most are apparently translational slides characterized by headscarps, displaced blocks and/or debris runout, but 13 deep-seated failures with tension cracks up to 200 m inland from cliff crests were also identified. Thirty-one sites exhibit evidence of at least localized recent activity. Landslide distribution is primarily determined by the distribution of coastal cliffs >30 m high, and they are preferentially developed on metasedimentary rocks. Analysis of 16 landslides on Fetlar (NE Shetland) indicates that most are translational dip-slip failures; 3 represent deep-seated failures and several exhibit active frontal erosion attributable to basal sapping by storm waves. As these landslides terminate in shallow water, failure was probably initiated when rising sea level resulted in footslope erosion and upslope propagation of instability, causing downslope displacement of landslide blocks on upper slopes. 10Be exposure dating of two headscarps yielded ages of 4.8?±?0.2 ka and 4.4?±?0.2 ka, consistent with the onset of footslope erosion as sea level rose. Our results suggest that landslides have played a hitherto undocumented but important role in retreat of cliffed coastlines in Scotland.  相似文献   
5.
浑源窑是十世纪中期以后辽国烧造陶瓷的一处重要遗址。除了独具风格的镶嵌青瓷以外,其白瓷中的瓷塑类作品在造型和烧造上都发展得较为成熟,所生产的可以把玩和穿戴的人形、动物形玩具,佛像、观音等供器以及生活用具等,都充分体现了其成熟的艺术特色。  相似文献   
6.
7.
In a framing comment embracing the preceding four papers devoted to the enlargement of the European Union in 2004, a prominent American geographer reviews some of the major problems confronting the European continent. The paper, which begins with the author's view of Europe's dilemma in late 2006, covers a number of geographic implications of the May 2004 expansion. Noted are Russia's overland access to Kaliningrad, the addition of ca. 8 million underprivileged Roma (presently the Union's largest minority population), the potentially divisive new boundary with Russia, the future candidate states emerging from the former Yugoslavia, the prospects of Ukraine's possible membership, and the challenge of Turkey's quest for admission to the EU. Journal of Economic Literature, Classification Numbers: F02, F20, P20. 2 figures, 34 references.  相似文献   
8.
A prototype diesel generator equipped with a vibration isolation system consisting of restrained isolators (denoted as I/system) is quasi-statically and dynamically tested. Sequentially, the seismic simulation tests are conducted to further investigate the effectiveness of additional snubbers incorporated into the vibration isolation system (denoted as I/R system). Comparing the test results to the static design demands specified in ASCE 7-10, the recommended component amplification factor could represent the horizontal acceleration amplification phenomenon of the generator equipped with I/R system; however, the seismic force demands for static design of I/R system might not be appropriate and conservative enough.  相似文献   
9.
本文对洛当寺经书的内容、字体、书写、绘画风格、题材和题记等进行了首次调查和初步研究。研究显示,这批经书残卷及其插图由写本和刻本组成,写本最多,时代较早,主要为《般若波罗蜜多经》等经典;刻本较少,年代较晚。经书和插图制作于10-18世纪之间,基本反映出阿里古格王朝写经、刻经及其插图创作的历史脉络,是迄今国内发现藏传插图数量最多、时代跨度最大的写经和刻经作品。经书的发现对于弥补国内藏传写经彩绘插图,进一步研究阿里、西藏自治区乃至中国古代写经、刻经和译经的历史,以及插图艺术的题材、风格及其特点、演变,都具有重要的学术和艺术价值。  相似文献   
10.
对唐代道的研究,代不乏人,但多囿于旧说,鲜有突破。本文引用新史料,并对旧史料加以比勘考证,在继承前人研究成果的基础上,对唐代道的演化提出了如下新观点:唐高宗永徽年间,已有十三道的区划;武则天当政时期,回复十道旧观;开元十七年(729年),正式形成十五部的规模;开元天宝之际,实有十六部;终唐之世,几乎没有"十五道"的说法,而是一直沿用"十道"通称。  相似文献   
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