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   144篇
  免费   2篇
  2021年   4篇
  2020年   6篇
  2019年   5篇
  2018年   4篇
  2017年   1篇
  2016年   2篇
  2015年   4篇
  2014年   6篇
  2013年   17篇
  2012年   9篇
  2011年   10篇
  2010年   9篇
  2009年   14篇
  2008年   11篇
  2007年   9篇
  2006年   11篇
  2005年   5篇
  2004年   2篇
  2003年   6篇
  2002年   4篇
  2001年   2篇
  2000年   2篇
  1998年   1篇
  1993年   1篇
  1991年   1篇
排序方式: 共有146条查询结果,搜索用时 15 毫秒
131.
Optically stimulated luminescence (OSL) dating was applied to sediment samples in order to provide age constraints on the palaeo-earthquake events that are recorded in a trench on the Lingwu fault near Yinchuan on the northeastern margin of the Tibetan Plateau, China. Combining seventeen OSL ages with field observations in the trench shows that at least four events took place at this specific site, and that this fault has been active over the past 200 ka.  相似文献   
132.
杜钢梅  顾文玲  吴宏彬 《神州》2011,(3X):19-20,22
李渔作为“文人系之建筑思想”的代表人物之一,其建筑装饰思想主要体现在崇尚自然,重视环境;尊重个性,重在创新;强调实用与空间相宜;尚平淡雅致,忌奢华等诸方面。李渔的建筑装饰思想,是中国古代文人的人意识和情趣在建筑装饰上的集中反映,是对中国古代建筑装饰思想的发扬和光大,它对现代建筑装饰设计和施工,具有十分重要和现实的指导意义。  相似文献   
133.
五代十国时期商业贸易的特点及其局限性   总被引:1,自引:0,他引:1  
五代十国时期商业贸易的特点主要表现在国内各区域间的贸易比较兴盛,与周边少数民族的贸易有所萎缩;陆上对外贸易萎缩,海上贸易有所发展;官营商业有所发展等方面。用于贸易的商品种类与唐代相比,主要表现在农产品商品化的趋势不断扩大上。这一历史时期商业贸易的局限性表现在缺乏统一的国内市场,商税繁重;战乱和混乱的政治秩序,影响了商业贸易的正常进行;币制杂乱,钱币紧缺,制约了商业贸易的进一步发展。  相似文献   
134.
本文通过对中国旧石器考古史上两次大讨论的回顾,认为引起学界长期以来对石器性质进步与原始的争论的主要原因是对石料与石器制作技术的关系认识不够,“因材施工”可能是中国古人类适应环境的一个十分重要的手段,也是中国旧石器文化的一个特点,这一点对认识“东谷坨石核”的成因可能有一定的启示。  相似文献   
135.
古城正定素以古建筑众多而闻名,近50年来在对古建筑进行的维修工程中,相继发现了一些文字题记,对鉴定、研究和修缮这些古建筑提供了可靠而有价值的文字资料。本文综合概述了这些文字题记的发现及其内容,并结合志书及碑文等原有资料的记载就相关问题做了考证和论述。  相似文献   
136.
杜水生 《考古与文物》2007,(4):86-93,112
塔水河遗址位于山西省陵川县夺火乡塔水河上游的葫芦坝左岸一处岩棚下,北距陵川县城约45公里。1985年-1987年,陈哲英研究员对遗址进行了调查和试掘,并于1989年发表了试掘报告,根据发掘者提供的骨化石标本测定的年代为距今26000年。报告发表后,不同学者先后从不同角度对石制品进  相似文献   
137.
传统旅游市场细分的缺陷及对策   总被引:3,自引:0,他引:3  
章通过分析传统旅游市场细分的不足,指出旅游产品的化属性是其核心竞争力,并建议旅游企业以此作为变数引入旅游市场细分,从而获得具有竞争优势的目标旅游市场。  相似文献   
138.
The paper applies Bayesian statistical modelling to radiocarbon dates obtained for a stratigraphic sequence comprising occupation features and superimposed burials from the Late Mesolithic (c.7400–6200 cal BC) to the Mesolithic–Neolithic transition (c.6200–5900 cal BC), from Vlasac in the Danube Gorges region of the north‐central Balkans. This sequence, investigated in the course of excavations at the site in 2006–9, yielded stratigraphic evidence of the transformation of local forager populations as a result of contact with Neolithic communities. Our paper provides a reliable chronological framework for changes from Late Mesolithic burial rites to new, Neolithic types of ornamental beads at the top of the sequence. The use of the same burial location and continuities in burial rites over a considerable period of time raise significant questions about the role of tradition and the potential for enduring practices in prehistoric societies.  相似文献   
139.
Previous studies on modern historic buildings protection have been mainly conducted from the view of building history, culture and aesthetic, but rarely focus on the green building technology and energy-saving. With the increasingly serious crises of environment and energy, it is valuable to research how to carry out ecological protection to effectively reduce energy consumption in modern buildings while ensuring the authenticity and readability of building heritage information.

This article describes a new technical scheme to apply Trombe wall technology for wall conservation in modern historic buildings. The feasibility, key construction technologies and operating conditions in different seasons were demonstrated by an actual case in Beijing. Key findings show that the technical scheme not only protects the skin texture of the wall but also makes full use of passive solar energy. Energy consumption simulation results show that saving energy in winter is significant. Compared with the original building, the total energy consumption of the building that adopted the technical scheme was reduced by 10.77%, the heating energy consumption was reduced by 21.86%, and the cooling energy consumption was reduced by 1.02%. The research findings provide new inspiration and reference for studies on the protection of modern historic buildings, and serve as a technical reference for architects.  相似文献   

140.
ABSTRACT

As a world-renowned heritage site, the Ming Great Wall in Qinghai Province, is an example of an earthen site that is seriously threatened by a series of deterioration. Its damage assessment is the precondition for further protection planning and implementation, but related research was found to be scant. To fill this gap, we explore to study its damage assessment by applying Fuzzy-AHP and AHP-TOPSIS to determine the damage assessment levels for 18 earthen sites selected from Qinghai Province, combined with their occurrence environment, engineering properties of rammed earth, deterioration characteristics, and building technologies. After obtaining and comparing results, the AHP-TOPSIS is indicated to be much closer to the real damage conditions. Therefore, this method is proved to be more suitable for the damage assessment of earthen sites in Qinghai Province. This study also holds the potential application of the AHP-TOPSIS in the damage assessment for other earthen sites in Northwest China.  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