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   1140篇
  免费   10篇
  1150篇
  2025年   2篇
  2024年   7篇
  2023年   5篇
  2022年   21篇
  2021年   23篇
  2020年   35篇
  2019年   45篇
  2018年   43篇
  2017年   60篇
  2016年   49篇
  2015年   21篇
  2014年   28篇
  2013年   310篇
  2012年   63篇
  2011年   72篇
  2010年   43篇
  2009年   38篇
  2008年   50篇
  2007年   29篇
  2006年   29篇
  2005年   28篇
  2004年   11篇
  2003年   17篇
  2002年   22篇
  2001年   21篇
  2000年   8篇
  1999年   11篇
  1998年   12篇
  1997年   17篇
  1996年   12篇
  1995年   7篇
  1994年   3篇
  1993年   3篇
  1992年   2篇
  1983年   1篇
  1982年   1篇
  1981年   1篇
排序方式: 共有1150条查询结果,搜索用时 15 毫秒
1.
This paper examines the acquisition particularities of advanced-level students. It also investigates the use of content-based—in this case media material—in teaching advanced-level students, as well as the impact of teaching such material on the students’ writing ability and overall proficiency. Finally, the subtle differences between heritage learners and second language learners are analyzed and discussed. Therefore, this research encompasses both a quantitative and a qualitative study of the issue at stake to ensure reliability of the findings. The results of the study suggest that there is no significant difference between the number of errors made by heritage learners and second language learners; however, the sources of these errors are often different. These sources of error and their possible reasons are discussed in this paper.  相似文献   
2.
ABSTRACT

This article examines cultural policy strategies supporting urban regeneration, focusing on its particular characteristics in the Ibero-American context. We start by developing a systematic contrast between the different circumstances that have led to the emergence of these strategies in the Ibero-American sphere and in other parts of the world. Our examination of the Ibero-American regenerative experience also includes a consideration of the paradigmatic cases that arose initially in the Iberian Peninsula and the typological analysis of subsequent Latin American experiences. The consideration of all these different elements ends up providing a global vision of the specificity of the phenomenon in its Ibero-American context.  相似文献   
3.
This paper considers Frobisher Bay and Inuvik, two Canadian Arctic towns, as examples of the high-modernist planning that swept the globe during the middle decades of the twentieth century, but also Cold War projects reflecting a sudden interest in the Arctic as a region of military significance. Building on the framework provided by James Scott in Seeing like a State (1998), the paper details the connections between modernization theory and Cold War militarism before turning to the strikingly parallel case studies. In each instance, federal officials proposed ambitious urban models designed to simultaneously overcome the hostility of a northern environment and catapult native northerners into conditions of modern living. While the limits and failings of such schemes varied by location, both sites were also laboratories for social scientists employed by the federal government to document and analyze the modernization of the Arctic. The work of these scholars represents a particularly rich and complex record of governmental interventions, tied variously to Cold War imperatives, in northern lives and landscapes at a time of great faith in the transformative power of modern engineering.  相似文献   
4.
邹衡 《华夏考古》2005,(4):68-70
本文对《再论郑州商城的年代、性质及相关问题》中的几个问题进行了商榷,认为郑州商城隞都说是站不住脚的。  相似文献   
5.
陈启虎 《攀登》2005,24(4):41-44
正确认识环保产业在我国国民经济发展中的作用和地位,有利于促进环保产业的健康可持续发展。本文从环保产业在国民经济发展中的功能定位出发,认为环保产业是重要的基础性产业,我国环保产业的发展有着广阔的市场需求,环保产业是我国经济发展中的新增长点。  相似文献   
6.
Cultural Landscapes of Britain   总被引:1,自引:0,他引:1  
'Britain' and 'cultural landscape' as used here are defined. The World Heritage categorisation provides the basis for a brief review of the range of such landscapes in Britain, with specific examples being named and briefly characterised. Relict landscapes are particularly noted. 'Threats to cultural landscapes are identified as of both development and decrepitude. A short discussion of the purpose and viability of cultural landscapes in Britain, for national and global purposes, concludes by noting a number of British cultural landscapes recognisable in World Heritage terms and potentially relevant to the European Landscape Convention 2000.  相似文献   
7.
The new interest in cultural landscapes is forcing a reappraisal of concepts of countryside heritage. First the traditional split between cultural and natural values is challenged. Second, modern landscape studies emphasise the subjectivity of landscape assessment, and this is subverting the former tendency to aspire to objectivity in evaluation. The acceptance of ‘associative’ value in landscape is an indicator of this. Modern landscape studies also emphasise the interrelationships between processes and aspects of value, and this is encouraging specialists to communicate across disciplinary frontiers. The desire by ecologists in the mid‐1980s to have cultural landscapes inscribed on the World Heritage list caused a re‐assessment of the World Heritage Criteria, and an initiative by ICOMOS brought this process to a conclusion in 1992. However the reappraisal of concepts of countryside value imply that there are many other philosophical and practical matters still to be resolved.  相似文献   
8.
Multidisciplinary spatial studies are relatively limited in Indian archaeology, despite their potential for research and heritage management. This paper discusses applications of satellite remote sensing, field studies and GIS, in the context of Palaeolithic archaeology. The study region covers an area of around 8000 km2, in the state of Tamil Nadu, South India, and is characterized by a rich and diverse Palaeolithic record. Satellite images of varied spatial resolutions were interpreted to address both regional and site-specific research questions. Thematic maps were generated from satellite data and refined with intensive field investigations. These were used for demarcating sources of raw material, and in investigating variability in the distribution of sites through time in relation to a range of geological and geomorphological features. Satellite data and field studies also aided in mapping impacts on sites resulting from modern landuse patterns. The paper also discusses the development and testing of a model to detect potential areas where new sites may be rapidly located.  相似文献   
9.
Abstract

This paper explores the case of the Khami archaeological site, whose degradation by the local communities in recent years was as a result of socio-economic problems caused by the collapse of the Zimbabwean economy combined with the inability of the Zimbabwean government to support the site. We argue that the negative attitude by the local communities towards the management of cultural heritage sites is embedded in the colonial history of the country, and has been driven by the socio-economic difficulties emanating from the collapse of the Zimbabwean economy in recent years. We begin by explaining the history of Khami, its architecture, and the local communities residing around it. We then show and assert that the subsequent degradation of Khami and the landscape around it by the local communities is linked to the socio-economic problems of the country and poverty, which emanated from the collapse of the Zimbabwean economy. In the end, we contend that the economic constraints are part of the reasons why the local communities have from time to time failed to respect the importance of protecting cultural heritage sites in the country.  相似文献   
10.
We present a scheme to modify empirical Green's functions by attenuation considering: (1) geometrical spreading; (2) decay in high frequency; (3) regional attenuation; and (4) phase of the signal. The accelerograms computed with the proposed simulation method are compared, in time and frequency domains, with strong ground motions from subduction and intermediate-depth earthquakes recorded in Mexico. It is shown that this simple empirical Green's functions technique can synthesize both the shape and amplitude of the response spectra in the site, considering a postulated seismic source located at different distances from the original one.  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