全文获取类型
收费全文 | 3828篇 |
免费 | 68篇 |
国内免费 | 9篇 |
专业分类
教育 | 2823篇 |
科学研究 | 296篇 |
各国文化 | 64篇 |
体育 | 261篇 |
综合类 | 2篇 |
文化理论 | 23篇 |
信息传播 | 436篇 |
出版年
2023年 | 18篇 |
2022年 | 37篇 |
2021年 | 57篇 |
2020年 | 117篇 |
2019年 | 159篇 |
2018年 | 184篇 |
2017年 | 192篇 |
2016年 | 181篇 |
2015年 | 125篇 |
2014年 | 166篇 |
2013年 | 942篇 |
2012年 | 128篇 |
2011年 | 116篇 |
2010年 | 117篇 |
2009年 | 122篇 |
2008年 | 113篇 |
2007年 | 99篇 |
2006年 | 103篇 |
2005年 | 67篇 |
2004年 | 68篇 |
2003年 | 63篇 |
2002年 | 56篇 |
2001年 | 62篇 |
2000年 | 47篇 |
1999年 | 40篇 |
1998年 | 32篇 |
1997年 | 28篇 |
1996年 | 35篇 |
1995年 | 29篇 |
1994年 | 28篇 |
1993年 | 33篇 |
1992年 | 22篇 |
1991年 | 31篇 |
1990年 | 20篇 |
1989年 | 19篇 |
1988年 | 13篇 |
1987年 | 20篇 |
1986年 | 17篇 |
1985年 | 27篇 |
1984年 | 17篇 |
1983年 | 17篇 |
1982年 | 18篇 |
1981年 | 17篇 |
1980年 | 11篇 |
1979年 | 16篇 |
1978年 | 13篇 |
1977年 | 5篇 |
1975年 | 7篇 |
1973年 | 6篇 |
1971年 | 6篇 |
排序方式: 共有3905条查询结果,搜索用时 694 毫秒
1.
Jee-Hyub Kim Byung-Kwan Kwak Seungwoo Lee Geunbae Lee Jong-Hyeok Lee 《Information Retrieval》2001,4(2):115-132
In Korean information retrieval, compound nouns play an important role in improving precision in search experiments. There are two major approaches to compound noun indexing in Korean: statistical and linguistic. Each method, however, has its own shortcomings, such as limitations when indexing diverse types of compound nouns, over-generation of compound nouns, and data sparseness in training. In this paper, we propose a corpus-based learning method, which can index diverse types of compound nouns using rules automatically extracted from a large corpus. The automatic learning method is more portable and requires less human effort, although it exhibits a performance level similar to the manual-linguistic approach. We also present a new filtering method to solve the problems of compound noun over-generation and data sparseness. 相似文献
2.
3.
4.
Deborah G. Ventis 《Early Childhood Education Journal》1992,19(3):32-34
Gardening and children are a natural combination; children love to play in the dirt, and are fascinated by growing things. The benefits of having a garden can go beyond the fresh vegetables and flowers, a lot can be learned in the process. Although skills involved in planting and caring for the garden and acquiring a rudimentary knowledge of biology are obvious benefits, many other cognitive skills can be introduced or reinforced with a garden project.Deborah G. Ventis is Associate Professor of Psychology, College of William and Mary, Williamsburgh, VA. 相似文献
5.
Deborah L. Bandalos 《Educational Measurement》2004,23(2):33-40
Recent implementation of Nebraska's Standards-based Teacher-led Assessment and Reporting System (STARS) introduced a unique opportunity to examine the benefits and drawbacks of a teacher-led state assessment system. STARS is unique among state assessment systems in that statewide tests are replaced by locally developed assessments designed by teachers. Benefits of this system are found to be greater teacher use of results for instructional planning, greater diagnostic utility of the assessments, and gains in assessment literacy. Disadvantages include the time-consuming and stressful nature of creating localized assessments. Compatibility of STARS with the requirements of the No Child Left Behind Act are discussed. 相似文献
6.
7.
Creating Access to Invisible Special Collections: Using Participatory Management to Reduce a Backlog
The University of Colorado at Boulder Libraries used participatory management to reduce a special collections backlog. Without an increase in budget or staffing, technical and public services departments designed a pilot project to redeploy internal human resources in a collaborative manner. The process of backlog management is discussed. 相似文献
8.
Nanhee Lee 《文物保护研究》2018,63(3):163-170
Currently, about ten Goryeo dynasty (918–1392 CE) sutra boxes are preserved in museums in Korea, Japan, the United States, the Netherlands, and the United Kingdom. This article is the result of an examination of a sutra box in the collection of the Rijksmuseum, Amsterdam (hereafter ‘Rijksmuseum sutra box’), which was first introduced to a European audience in the Transactions and Proceedings of the Japanese Society, in 1913–1914. The Rijksmuseum sutra box differs from other Goryeo sutra boxes. With its altered structure and modified motifs, this box bears significant value, not only for the research of thirteenth-century Goryeo mother-of-pearl art, but also for the study of cross-cultural adaptations in East Asian lacquer art. This article investigates the date of manufacture of the sutra box by analysing the manufacturing techniques and its various original and modified parts. For this, an X-ray radiograph was carried out for the first time. As a result, discoveries have been made regarding the structure and decoration of the lower part, which has been modified and is different from Goryeo mother-of-pearl sutra boxes. Finally, this paper reconsiders conservation and repair of Goryeo sutra boxes, as illuminated by an understanding of the original and repaired parts of this box. 相似文献
9.
10.
This paper analyses the publication patterns of researchers in the field of applied sciences at Universities of Technology in South Africa. Aspects investigated include publications in SCOPUS-listed journals; number of citations and countries of publication. Collaborative research patterns at national and international levels were also investigated. A bibliometric analysis approach was followed using SCOPUS as the main source of data and analysing the articles published in selected applied science disciplines. Results show that researchers in the field of applied sciences in universities of technology have increased their number of publications over the past 10?years and are also working in conjunction with other researchers both nationally and internationally. The analysis is an important addition to the field in South Africa which helps in measuring how institutions are positively responding to government incentives in research. The results are also important to information professionals who are increasingly playing an important role in research impact assessments. 相似文献