全文获取类型
收费全文 | 3794篇 |
免费 | 55篇 |
国内免费 | 48篇 |
专业分类
教育 | 2596篇 |
科学研究 | 446篇 |
各国文化 | 49篇 |
体育 | 292篇 |
综合类 | 68篇 |
文化理论 | 27篇 |
信息传播 | 419篇 |
出版年
2023年 | 17篇 |
2022年 | 45篇 |
2021年 | 87篇 |
2020年 | 130篇 |
2019年 | 145篇 |
2018年 | 168篇 |
2017年 | 169篇 |
2016年 | 157篇 |
2015年 | 131篇 |
2014年 | 197篇 |
2013年 | 776篇 |
2012年 | 186篇 |
2011年 | 180篇 |
2010年 | 166篇 |
2009年 | 150篇 |
2008年 | 152篇 |
2007年 | 133篇 |
2006年 | 119篇 |
2005年 | 72篇 |
2004年 | 58篇 |
2003年 | 74篇 |
2002年 | 62篇 |
2001年 | 67篇 |
2000年 | 56篇 |
1999年 | 27篇 |
1998年 | 20篇 |
1997年 | 20篇 |
1996年 | 19篇 |
1995年 | 18篇 |
1994年 | 13篇 |
1993年 | 21篇 |
1992年 | 13篇 |
1991年 | 22篇 |
1990年 | 9篇 |
1989年 | 16篇 |
1988年 | 11篇 |
1987年 | 18篇 |
1986年 | 11篇 |
1985年 | 20篇 |
1984年 | 12篇 |
1983年 | 11篇 |
1982年 | 16篇 |
1981年 | 10篇 |
1980年 | 10篇 |
1979年 | 13篇 |
1978年 | 11篇 |
1977年 | 5篇 |
1975年 | 7篇 |
1973年 | 6篇 |
1971年 | 6篇 |
排序方式: 共有3897条查询结果,搜索用时 15 毫秒
11.
本文介绍了美国国会图书馆自动生成元数据应用计划AMeGA的一些基本情况,包括自动生成元数据的方法、AMeGA计划的研究方法和研究结果、自动生成元数据应用软件的功能需求等,并指出它对我国网络信息资源自动编目的借鉴意义. 相似文献
12.
在分析现有信任模型不足的基础上,提出一个改进的信任模型。改进后的信任模型增加了事务因素,并通过一系列函数来描述信任,为协同与安全决策提供依据。同时将信任值区间扩大,增加实体表达自身认知的方法,使得信任度连续化,可以更加有效地解决信任管理问题。 相似文献
13.
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
14.
15.
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
16.
Industry advocates argue that by tailoring services and commercial solicitations to match media users’ personal interests, data-driven marketing benefits both consumers and businesses. This article shows, however, that advertisers and marketers who are taking up ideas and techniques from behavioral economics tell their clients a very different story about the aims and use of digital marketing and consumer surveillance. Listening in on this discourse demonstrates that some digital marketers conceptualize their own practices as forms of social control, appropriating concepts from behavioral economics to identify consumers’ cognitive and affective biases and target their vulnerabilities. Behavioral economics recognizes that economic decisions are not simply dictated by rational self-interest; rather, such choices depend on cognitive heuristics and habits, and can be manipulated through the design of “choice architecture.” This article discusses implications of the behavioral turn in data-driven marketing for critical advertising scholars, public advocates, and regulators. 相似文献
17.
Recent advances in droplet microfluidics have led to the fabrication of versatile vesicles with a structure that mimics the cellular membrane. These artificial cell-like vesicles including polymersomes and liposomes effectively enclose an aqueous core with well-defined size and composition from the surrounding environment to implement various biological reactions, serving as a diverse functional reactor. The advantage of realizing various biological phenomena within a compartment separated by a membrane that resembles a natural cell membrane is actively explored in the fields of synthetic biology as well as biomedical applications including drug delivery, biosensors, and bioreactors, to name a few. In this Perspective, we first summarize various methods utilized in producing these polymersomes and liposomes. Moreover, we will highlight some of the recent advances in the design of these artificial cell-like vesicles for functional bioreactors and discuss the current issues and future perspectives. 相似文献
18.
19.
Jin Woo Lee Anastasia Ostrowski Aileen Huang-Saad Colleen M. Seifert 《European Journal of Engineering Education》2019,44(3):360-378
ABSTRACTWith increasing demand for improved medical equipment and healthcare, next-generation biomedical engineers need strong design skills. Equipping biomedical engineering students with tools for idea generation and development can increase student design success. Design Heuristics are an ideation tool developed through empirical studies of product designs. While identified in the mechanical engineering space, Design Heuristics may be applicable in biomedical engineering design. In our study, we implemented a Design Heuristics session during upper-level undergraduate and first-year graduate biomedical engineering design courses. We examined the applicability of Design Heuristics within individual and team concept generation contexts. The findings demonstrated that biomedical engineering students were able to use Design Heuristics to generate multiple concepts, and that initial concepts produced using Design Heuristics were carried over into final team design. The results support the applicability of Design Heuristics to student idea generation in biomedical engineering design. 相似文献
20.
李哲贤 《临沂师范学院学报》2015,37(1):45-49
在先秦时期,除了名家和墨家之外,在名学研究方面,其成就最大的当属荀子。荀子对于先秦名学之贡献主要是进一步批判和发展名家和墨辩之名学,使儒家之名学更加严谨。然而,历来有关荀子之研究多着眼于其心、性、天、礼等之探讨,而疏于抉发其名学之义蕴。直到近年来,由于大陆学界积极挖掘中国古代之逻辑思想,以免西方逻辑专美于前,于是有关中国逻辑史或逻辑思想之论着,如雨后春笋般出现。此等有关中国逻辑论者之研究对象主要为先秦时期讨论名实辩说之篇章,尤其是公孙龙、墨辩和荀子名学之研究。此外,由于一些国外学者之参与,使得中国古代逻辑之研究,尤其是关于荀子名学之研究,如今已成一较为普遍之现象。有关荀子之研究,日本汉学界已作出极为可喜之成绩。唯历来有关荀子之研究,日本汉学界多着重其心、性、天、礼或政治、伦理学说之阐述,而较疏于其名学之研究。然而,就目前已发表之论着而言,无论是在厘清荀子之哲学立场或对于名学之分析等,亦颇有其独到之处,值得吾人借镜。 相似文献