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   1024篇
  免费   39篇
  2023年   11篇
  2022年   8篇
  2021年   7篇
  2020年   22篇
  2019年   28篇
  2018年   35篇
  2017年   42篇
  2016年   34篇
  2015年   27篇
  2014年   23篇
  2013年   173篇
  2012年   55篇
  2011年   61篇
  2010年   53篇
  2009年   63篇
  2008年   49篇
  2007年   40篇
  2006年   59篇
  2005年   49篇
  2004年   14篇
  2003年   20篇
  2002年   24篇
  2001年   12篇
  2000年   16篇
  1999年   8篇
  1998年   16篇
  1997年   3篇
  1996年   11篇
  1995年   7篇
  1994年   8篇
  1993年   5篇
  1992年   3篇
  1991年   5篇
  1989年   3篇
  1988年   4篇
  1985年   3篇
  1984年   6篇
  1982年   7篇
  1981年   4篇
  1980年   4篇
  1977年   2篇
  1976年   6篇
  1975年   2篇
  1974年   3篇
  1973年   4篇
  1972年   3篇
  1971年   3篇
  1969年   2篇
  1968年   2篇
  1954年   2篇
排序方式: 共有1063条查询结果,搜索用时 0 毫秒
31.
32.
The school formal in New Zealand constitutes a rich site of analysis for researchers interested in gender and sexuality performances. As a social space, the formal both shapes bodies and is shaped by them. In this article, we explore the school formals of three different types of schools: a single sex girls’, a single sex boys’ and a co-ed. high school, all from an urban centre. Using the theoretical tools provided by poststructuralism and queer theory, we conducted a discourse analysis of observations conducted by the first author at two school formals, interviews with staff and students and interviews with peer researchers. We demonstrate how same-sex practices do not necessarily map onto queer bodies, masculinity onto ‘male’ bodies or femininity onto ‘female’ bodies. Such fluidity challenges the rigid heterosexual/homosexual and masculine/feminine binaries so that schools are more inclusive of gender and sexual diversity.  相似文献   
33.
The study implements the performance-based analysis and design methodology to assess the seismic vulnerability of a coal-fired power plant and to optimally design its equivalent pendulum-type tuned mass damper system such that the direct losses are minimized. A building-specific total loss ratio is developed to link the component level losses with the total repair cost of the original structure. The optimal system configuration is finally derived for cases with the minimum loss. The study demonstrates a systematic way of achieving the optimal pendulum-type tuned mass damper design with considerations of uncertainties in earthquake inputs and the combined component level damages.  相似文献   
34.
This paper examines the role of accelerator programmes in promoting transnational entrepreneurship. Designed to assist the growth of start-ups by providing seed finance and structured entrepreneurship support, these programmes are now a prominent feature in many entrepreneurial ecosystems around the world. Drawing on in-depth qualitative evidence focused on one particular programme, the paper shows accelerators play an important intermediary or ‘brokerage mechanism’ providing start-ups with enhanced relational connections and networks. Transnational entrepreneurs attracted to these programmes are highly focused on exploiting these networks whilst maintaining multiple levels of embeddedness in various contexts to maximize the opportunities afforded by accelerators. While many governments are attempting to replicate accelerators programmes within the public sector, the paper concludes that such attempts may prove problematic within weaker entrepreneurial ecosystems.  相似文献   
35.
Abstract

The Ming History (明史 Mingshi) by Qing official historians took more than 90 years to complete, and Wan Sitong's 萬斯同 Draft Ming History (明史稿 Mingshi gao), Wang Hongxu's 王鴻緒 Draft Ming History, and the Ming History palace edition overseen by Zhang Tingyu 張廷玉 were the most important histories of the Ming over its different stages of compilation. Wan Sitong gave much attention to the writing of history in the biographies from the Wanli Korea Campaign, Wang Hongxu did not give them much attention, and Zhang Tingyu repudiated and even negated them. In Zhang Tingyu's Ming History, the Annals of Shenzong (神宗本紀 Shenzong benji) set the tone of repudiating the Korea campaign. Due to their clan, the Bozhou Campaign (播州之役 Bozhou zhiyi), or the Liaodong Incident (遼東事變 Liaodong shibian), nearly none of the Ming generals from the eastern expedition to Korea were given biographies due to their participation in the Korean War. The History of the Choson (朝鮮傳 Chaoxian zhuan) gives a negative evaluation that denies or undervalues relevant people and battles. On the one hand, this was due to the influence of historical sources. Due to Yang Gao’s 楊鎬 responsibility for defeat in the Battle of Saerhu 薩 爾 滸 之 役, the compilers of the Veritable Records of Ming Shenzong (明神宗實錄 Ming Shenzong shilu) followed the account of Ding Yingtai 丁應泰 in their records and denied the accomplishments of Yang Gao and the Ming army in Korea. On the other hand, due to real political needs, as the commanders of the eastern expedition to Korea later became the military rival of the Later Jin in Liaodong, an attitude of denial had to be adopted against them to create legitimacy for the Qing dynasty. These were the two main factors that determined the way in which the Qing official Ming History wrote the history of the Wanli Korean War.  相似文献   
36.
Cities offer a large menu of possible employment and leisure opportunities. The gains from such consumer city leisure are likely to be lower on more polluted days. We study the association between daily consumption activity and outdoor air pollution in China and find evidence in favor of the hypothesis that clean air and leaving one's home for leisure trips are complements. Given the high levels of air pollution in cities in the developing world, regulation induced improvement in environmental quality is likely to further stimulate demand for the consumer city.  相似文献   
37.
This study had two purposes. First, it empirically examined the relationship between citizens' participation in administrative policymaking phases and their perception of government transparency. Second, it investigated how citizens' use of both offline and online participation channels and their involvement in different phases of policymaking (i.e., agenda setting, implementation, and evaluation) were related to their assessment of transparency in government. A 2009 survey of residents of Seoul, South Korea, was used to test the study hypotheses. Using two‐stage least squares estimate techniques, the study found that citizens involved in any citizen participation programs are more likely than those not involved to positively assess transparency in government. With regard to the relationship between participation channels and transparency, citizens who used offline participation channels were more likely than nonusers to perceive enhanced transparency in local government. However, their use of online participation channels had limited effect on perceptions of transparency. Finally, participation in two phases of the policy process, agenda setting and evaluation, positively affected citizens' assessment of transparency in government.  相似文献   
38.
39.
Between 1900 and 1970, American archaeologists perceived themselves as second-class anthropologists because the archaeological record suggested little not already known ethnographically, archaeology served anthropology by testing ethnologically derived models of cultural evolution, the archaeological record was ethnologically incomplete as a result of poor preservation, and archaeologists used but did not write anthropological theory. Ethnologists of the period agreed with these points and regularly reminded archaeologists of their limited role in anthropology. A few archaeologists claimed in the 1950s that archaeology could contribute to anthropological theory but they were ignored. The claim was reiterated by new archaeologists of the 1960s, and by the 1970s worries about the poor preservation of the archaeological record had softened. However, most archaeologists after 1970 (and before 1990) used anthropological theory and did not write new theory on the basis of archaeological data. The root cause of American archaeology’s ninety-year absence from anthropology’s high table of theory seems to be the discipline-wide retention of the ninety-year old belief that archaeology is prehistoric ethnology and the (unnecessary and constraining) corollary that archaeologists must use anthropological theory to explain the archaeological record.  相似文献   
40.
关于金长城(界壕边堡)文献著录与考证的历史回顾.自上世纪三四十年代以来,考古调查与发掘的主要收获.其中包括本人早年三次调查金东北路界壕边堡的发现与成果.与金东北路、临潢路界壕有关的几个历史地理问题.主要从考古学的角度,推断"北方边墙"当属于辽代.金长城(界壕)继承了我国古代长城的一般传统与功能,而且在建造规律、纵深配置与管理诸方面,予后世之明长城(边墙)以直接影响.迄今,关于金长城的分布与配置已大致清晰,但在总长度上的分歧甚大.因此,按统一标准,在统一规划下,对金长城进行精确复查,仍属势在必行.  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