全文获取类型
收费全文 | 3193篇 |
免费 | 40篇 |
国内免费 | 10篇 |
专业分类
教育 | 2270篇 |
科学研究 | 274篇 |
各国文化 | 50篇 |
体育 | 242篇 |
综合类 | 2篇 |
文化理论 | 22篇 |
信息传播 | 383篇 |
出版年
2023年 | 14篇 |
2022年 | 33篇 |
2021年 | 55篇 |
2020年 | 108篇 |
2019年 | 137篇 |
2018年 | 169篇 |
2017年 | 174篇 |
2016年 | 154篇 |
2015年 | 109篇 |
2014年 | 144篇 |
2013年 | 784篇 |
2012年 | 112篇 |
2011年 | 98篇 |
2010年 | 105篇 |
2009年 | 101篇 |
2008年 | 86篇 |
2007年 | 85篇 |
2006年 | 80篇 |
2005年 | 44篇 |
2004年 | 37篇 |
2003年 | 53篇 |
2002年 | 38篇 |
2001年 | 39篇 |
2000年 | 38篇 |
1999年 | 24篇 |
1998年 | 21篇 |
1997年 | 21篇 |
1996年 | 24篇 |
1995年 | 16篇 |
1994年 | 15篇 |
1993年 | 26篇 |
1992年 | 16篇 |
1991年 | 25篇 |
1990年 | 10篇 |
1989年 | 21篇 |
1988年 | 13篇 |
1987年 | 24篇 |
1986年 | 11篇 |
1985年 | 22篇 |
1984年 | 13篇 |
1983年 | 13篇 |
1982年 | 17篇 |
1981年 | 12篇 |
1980年 | 12篇 |
1979年 | 14篇 |
1978年 | 11篇 |
1977年 | 6篇 |
1975年 | 7篇 |
1973年 | 6篇 |
1971年 | 6篇 |
排序方式: 共有3243条查询结果,搜索用时 15 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.
Children with spelling deficits demonstrate significant difficulty using inflectional morphology in their writing. This study investigated whether phonological deficits account for these pronounced difficulties or if they are more accurately explained by limitations in morphological or orthographic awareness. Twenty–six 11—13–year–old children with spelling deficits, 31 younger spelling–level–matched children, and 31 age–matched children were asked to spell a series of verbs with past tense and progressive markers in dictated sentences and in list form. Performance on spelling tasks was compared to performance on phonological, morphological, and orthographic awareness tasks. Results suggest that children with spelling deficits have significant difficulty including inflections as well as spelling inflections and base words. Difficulty was most pronounced in a sentence context. Ability to spell inflectional forms was related to variation in morphological awareness in children with spelling deficits and to variation in orthographic awareness in spelling–level–matched children. 相似文献
3.
4.
5.
6.
This paper discusses the use of systems development research methods in the context of ongoing research that is formulating
a specification for a metadata schema registry. The paper extrapolates from this discussion how such methods can be utilized
in archival systems research and how such an approach differs from commercial systems engineering. In particular, the paper
suggests that adopting a user-centred prototyping approach in a research context allows for exploration of the interplay between
theory and practice, advancing the practice, while also offering new insights into theoretical concepts. It argues that these
research methods are of increasing interest to the archival profession in order to conceptualise and realise the tools necessary
to support recordkeeping and archival processes in digital environments. 相似文献
7.
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
8.
9.
Jie Zhuang Yi Zhu Xiaodi Yan Elizabeth Bogdan-Lovis Joanne Goldbort 《Journal of Applied Communication Research》2018,46(4):491-508
This study assessed the impact of coworker support on lactating mothers’ breastfeeding self-efficacy after maternity leave. A cross-sectional survey of 1000 working adults assessed effects of perception of fairness, coworkers’ support for breastfeeding colleagues, and ick response on willingness to help mothers needing breaks to pump breastmilk at work. The study also examined how coworker support affected mothers’ self-efficacy to continue breastfeeding. One out of four coworkers showed moderate to strong stigma, saw breaks to pump breastmilk as unfair, and showed less intention to help new mothers. These results suggest that while the majority of coworkers are generally supportive, lactating women are likely to encounter disapproving coworkers who may discourage them from continuing to breastfeed. The data showed that the majority of organizations included in this study have only passively fostered mother-friendly workplaces and could do more to encourage employees to be supportive of lactating colleagues. 相似文献
10.
Social TV viewing is generally understood as a simultaneous act of watching TV and engaging in communication about the TV program with other TV viewers connected online. In response to the increasing popularity of this new TV viewing practice, the current study examined how individuals’ extrovert personality and loneliness influence social TV viewing experiences through the theoretical notion of social presence. An online survey was completed by 330 individuals. Results demonstrated that extrovert personality positively influenced social TV viewing experiences; it is important to note that this relationship was mediated by social presence. Loneliness itself was negatively related to social TV viewing experiences; however, this relationship was moderated by social presence. Specifically, when lonely people felt strong social presence, they enjoyed social TV viewing experiences. The findings provide theoretical implications for social TV research, the dynamic role of social presence, social enhancement model, and social compensation model. 相似文献