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   180篇
  免费   1篇
  181篇
  2023年   1篇
  2022年   5篇
  2021年   1篇
  2020年   4篇
  2019年   7篇
  2018年   6篇
  2017年   4篇
  2016年   3篇
  2015年   3篇
  2014年   5篇
  2013年   20篇
  2012年   22篇
  2011年   20篇
  2010年   10篇
  2009年   14篇
  2008年   7篇
  2007年   9篇
  2006年   4篇
  2005年   10篇
  2004年   7篇
  2003年   6篇
  2002年   2篇
  2001年   3篇
  2000年   5篇
  1999年   2篇
  1993年   1篇
排序方式: 共有181条查询结果,搜索用时 0 毫秒
71.
本文的研究中,在内蒙古地区地质学、古地理学和环境演变方面已有研究成果以及考古与历史文献资料的基础上,修复和描述了内蒙古陆地形成以来的地质历史时期和人类历史时期内蒙古土地利用/覆盖时空演变过程,并探索其驱动机制与因素,从而为正确把握内蒙古地区近现代土地利用/覆盖变化时空轨迹提供科学依据。古代相当长的历史时期,内蒙古地区基本上被游牧民族所占据,达到了一种古代的可持续发展。清代中期以后,特别是进入20世纪以来,随着几次大规模的移民拓荒高潮,耕地面积急速扩展而草场面积日益退缩,内蒙古草原生态环境遭遇空前的破坏,沙漠化和草原退化急速加快,土地利用变化和土地利用方式成为了土地覆盖变化的最主要驱动因子。土地利用变化(开垦草原、毁林开荒)的驱动因子主要有人口因素、经济利益和政府决策等三个方面,而且每一次大规模开荒时期三者往往相辅相成,促成新一轮的开荒高潮。  相似文献   
72.
The article deals with the largest mansion-type buildings in the Golden Horde towns of the Lower Volga region. These buildings had many rooms and walls made of hard-burned and adobe bricks. A large ceremonial hall was located at the center of the building; vestibule premises were located adjacent to the hall on the northern and southern sides; residential and utility rooms occupied the eastern and the western wings. Golden Horde mansions are compared with the palaces and mansions of China, Mongolia, and the countries of the Middle East. The infl uence of the architectural traditions of these countries led to the emergence of an original building type based both on a typical Western Central Asian layout, and principles of organizing space borrowed from Eastern Central Asia.  相似文献   
73.
程浩 《东南文化》2011,(4):96-99
南越王宫博物馆是一座依托于南越国宫署遗址建设而成的遗址博物馆。博物馆的陈列展示分为现场遗址展示和室内文物展示两部分,其中遗址展示是主体,室内展示起到对遗址解释说明的辅助作用。陈列人员在室内陈列的过程中,从突出遗址特点、确立陈列主题和风格、将展品的劣势转化为优势、深化研究成果、创新陈展方式等方面,层级化、直观化、多角度、动态化地解读考古信息,为遗址博物馆的展示作出了有益的尝试。  相似文献   
74.
故宫太和殿木构件现状分析及加固方法研究   总被引:3,自引:0,他引:3  
为加强对古建筑的维修保护,故宫博物院对太和殿进行了勘查,发现如下木构件问题:西山挑檐檩跨中挠度过大;三次间正身顺梁及山面扶柁木榫头位置下沉10cm;明间藻井下垂13cm,井口爬梁已经开裂.通过运用结构力学相关方法,对这些构件的结构现状进行理论分析,研究了问题产生的原因,讨论了相应的加固方案,解决了这些问题.结果表明:西山挑檐檩虽然挠度较大,但强度满足要求,不需要加固;山面扶柁木榫头下沉的原因是局部受弯强度不足,但已通过支顶解决该问题;正身顺梁榫头下沉的可能原因是材料老化,局部受拉、弯、剪强度不足,通过采用钢木组合结构进行了加固;藻井下沉的原因是木材老化,井口爬梁抗弯及抗压承载力不足,通过采用扁钢箍加固的方法进行了加固.研究结果可为古建筑保护及修缮提供参考.  相似文献   
75.
论明世宗对蒙"绝贡"政策与嘉靖年间的农牧文化冲突   总被引:1,自引:0,他引:1  
明朝曾采取允许周边各少数民族首领定期朝贡、明廷给以丰厚的赏赐并可在会同馆进行一定程度的互市贸易的政策,由此而形成明代的朝贡体制。但在嘉靖年间,明世宗顽固地拒绝和蒙古通贡互市,以至从嘉靖十一年(1532)以后,整个北边防线战争不断,终于酿成京城被围的“庚戌之变”。明世宗对蒙“绝贡”政策是违背历史大势的非常有害的错误政策,它给明蒙双方都造成了极大的危害,制约了明代历史的发展。  相似文献   
76.
清代广西天后宫的地理分布探析   总被引:1,自引:0,他引:1  
清代时,天后宫遍及广西各地,其空间分布呈现出桂东地区多、桂西地区少的格局,这与清代时大量的广东商人进桂密切相关,广东商帮的力量是天后宫在广西各地广泛分布的主要原因。天后宫的空间分布实际上就是广西各地区广东商帮的势力分布东强西弱的折射,反映了两广之间的地缘吸引力。  相似文献   
77.
Abstract

Over the last two decades and particularly in the last 10 years, Chinese investment in Mongolia has skyrocketed, with the vast majority of the country’s exports now flowing to China. As foreign investment has grown in Mongolia, particularly in the mining sector, apprehension circulates about the extension and meaning of increased Chinese power. We argue that contemporary anxieties about China’s economic influence in Mongolia go beyond recent and contemporary political economic issues and are tied to memories of the Qing Dynasty. Controversies surrounding Mongolia’s flagship mine, the Oyu Tolgoi copper–gold mine in South Gobi province, demonstrate how even non-Chinese foreign mining operations are intertwined with Mongolia’s past and future relationships with China. Rather than acting simply as resource nationalists, the people and government of Mongolia often see contemporary Chinese economic power through a historical lens, with fears of declining sovereignty and becoming Chinese through control over land and resources. This paper draws on fieldwork conducted by the authors in Mongolia from 2009 to 2015 and contributes to discussions about fears of Chinese influence, extractive industry development, and resource nationalism in Mongolia.  相似文献   
78.
Abstract

By 1735, Jean-Baptiste Bourguignon d’Anville had produced forty-one maps of the Qing Empire, or China, a process significantly more complex than scholars have hitherto appreciated. A close study of d’Anville’s maps and their originals has revealed their relationship with the different versions of a Chinese atlas, the first of which was completed early in 1718, the outcome of nearly a decade of collaborative surveying between officials of the Qing Empire and European missionaries. The precise origins of some of the maps are identified for the first time, and the network behind the remarkable intercontinental exchange of cartographical material that allowed d’Anville to produce his China maps is also discussed, thereby illustrating the central role of the French Jesuits, as well as the connection with St Petersburg.  相似文献   
79.
This paper delineates the pattern and structure of foreign direct investment (FDI) in a land-locked transition economy, Mongolia, situated strategically between Russia and China. The assessment is based on publications of major international financial institutions, official statistical publications of the Mongolian Government, and a unique dataset of 1,035 FDI firms based on a database compiled by the Mongolian office of the World Bank. A structured analysis of the dataset and government statistical publications makes it possible to ascertain patterns with respect to FDI country origin, sectoral composition, mode of entry, firm capitalization, composition of foreign and local partners, entry date, and location of the investment (core versus periphery). Journal of Economic Literature, Classification Numbers: E60, F21, P33. 5 figures, 3 tables, 34 references.  相似文献   
80.
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