全文获取类型
收费全文 | 1839篇 |
免费 | 28篇 |
国内免费 | 22篇 |
专业分类
教育 | 1398篇 |
科学研究 | 205篇 |
各国文化 | 5篇 |
体育 | 116篇 |
综合类 | 118篇 |
文化理论 | 2篇 |
信息传播 | 45篇 |
出版年
2023年 | 6篇 |
2022年 | 17篇 |
2021年 | 15篇 |
2020年 | 19篇 |
2019年 | 25篇 |
2018年 | 16篇 |
2017年 | 14篇 |
2016年 | 25篇 |
2015年 | 36篇 |
2014年 | 90篇 |
2013年 | 106篇 |
2012年 | 122篇 |
2011年 | 136篇 |
2010年 | 106篇 |
2009年 | 109篇 |
2008年 | 100篇 |
2007年 | 151篇 |
2006年 | 140篇 |
2005年 | 138篇 |
2004年 | 125篇 |
2003年 | 100篇 |
2002年 | 83篇 |
2001年 | 78篇 |
2000年 | 54篇 |
1999年 | 28篇 |
1998年 | 14篇 |
1997年 | 11篇 |
1996年 | 8篇 |
1995年 | 3篇 |
1994年 | 8篇 |
1993年 | 2篇 |
1991年 | 3篇 |
1988年 | 1篇 |
排序方式: 共有1889条查询结果,搜索用时 62 毫秒
91.
云计算在各行业的创新应用 , 衍生出诸多新型业态和新型商业模式, 产生了巨大的
经济价值和社会价值,主要体现在: 云计算集中了信息技术资源和服务,大幅提高了 IT资源的
应用效率; 降低了应用技术门槛, 最大限度扩展用户规模; 集中整合了数据资源, 挖掘出大数
据价值潜力; 引起体制机制的变革, 以技术方式突破体制屏障; 加强了信息系统综合集成, 实
现智慧管理与服务。 云计算应用创新具有独特的价值生成机理。 首先, 云计算通过将市场交
易双方的博弈改变为无限重复动态博弈, 形成诚信自律机制, 提高了市场交易效率从而形成
增值; 其次,云计算的创新应用向资本市场展示了收益前景,以内部学习效应形成了以未来收
益弥补当前亏损的资本补偿机制 , 挖掘了知识价值; 第三, 云计算形成了新型互联网商业平
台 ,以交叉补贴机制确保长期可持续经营,创造了低成本、高收益的价值增值模式。 鉴于云计
算平台已经成为涉及公共利益、承载公共服务的信息基础设施, 建议将云设施视为信息基础
设施,纳入监管保护体系; 制定针对云计算的知识产权和个人信息保护措施,鼓励云计算创新
应用 ;开展多层次试点示范,帮助中小企业和社会大众利用云计算创新创业。 相似文献
92.
The establishment of new academic specialties is an intriguing research topic from a social history of science perspective. In this article we focus on the ‘scientific migration’ within the Higher Institute of Physical Education (HIPE) and the Faculty of Medicine at the State University in Ghent, Belgium. The HIPE was ‘attached’ to the Faculty of Medicine in 1908, a world first that led to an interesting triangular relationship between physical education, physiotherapy, and medicine. The physiatrists (physicians-physiotherapists) who were appointed at the HIPE had to struggle with inferior status with respect to their colleagues within the Faculty of Medicine itself. Territorial power struggles arose on several levels. In 1936, after the first generation of physicians-physiotherapists had retired, physiotherapy was integrated fully into the Faculty of Medicine, and radiology and cancer treatment – which had been considered subsectors of physiotherapy – became autonomous specialties. Physical education, however, retained its inferior academic status. 相似文献
93.
94.
英语中名词后缀-ation及其音位变体的产生过程,传统的词汇学和音系学只给出了变化过程,而忽视了其形成过程,拟从优选论的角度出发,解释其形成过程。 相似文献
95.
"大规模""远距离"等是现代汉语中一种特殊的非名词性短语,结构上虽然以名词为核心,但语法功能却与一般的形名短语不同,一般只充当修饰语。运用框架理论考察该类特殊短语的理解过程,从而为该类短语特殊语法功能的形成机制提供一点思考。 相似文献
96.
97.
98.
Jim Hordern 《欧洲师范教育杂志》2015,38(4):431-444
This paper starts by exploring the relevance of Bernstein’s work on vertical and horizontal discourses and the constitution of professional knowledge for conceptualisation of the knowledge needed for teaching practice. Building on arguments for the differentiated nature of knowledge, and drawing on the work of Winch, Young and Muller on expertise, and the sociology of the professions, this paper advances a conception of teaching as a ‘specialised professional practice’ that requires the support of particular socio-epistemic arrangements and conditions embedded in professional communities. Prevalent notions of teaching and teacher education that find favour in some European countries are examined in the light of these arguments, with particular reference to recent reforms in England. 相似文献
99.
Richard Desjardins 《International Journal of Lifelong Education》2015,34(4):468-486
This article explores the relative importance of different socio-demographic and practice-oriented factors that are related to proficiency in problem solving in technology-rich environments (PSTREs) and by extension may be related to complex problem solving (CPS). The empirical analysis focuses on the proficiency measurements of PSTRE made available by the Programme for the International Assessment of Adult Competencies, which is relevant for gaining insight on some of the factors related to CPS. The purpose was to examine the relationship between the broad information processing experience that individuals gather in different contexts over the lifespan, and the chances to develop problem-solving skills that adults receive in different socio-demographic profiles. Results reveal that socio-demographic factors such as age, education and immigration status as well as practice-oriented factors such as ICT use and reading practice at and outside work are strongly related to proficiency. 相似文献
100.
In this paper, we propose an optimization framework to retrieve an optimal group of experts to perform a multi-aspect task. While a diverse set of skills are needed to perform a multi-aspect task, the group of assigned experts should be able to collectively cover all these required skills. We consider three types of multi-aspect expert group formation problems and propose a unified framework to solve these problems accurately and efficiently. The first problem is concerned with finding the top k experts for a given task, while the required skills of the task are implicitly described. In the second problem, the required skills of the tasks are explicitly described using some keywords but each expert has a limited capacity to perform these tasks and therefore should be assigned to a limited number of them. Finally, the third problem is the combination of the first and the second problems. Our proposed optimization framework is based on the Facility Location Analysis which is a well known branch of the Operation Research. In our experiments, we compare the accuracy and efficiency of the proposed framework with the state-of-the-art approaches for the group formation problems. The experiment results show the effectiveness of our proposed methods in comparison with state-of-the-art approaches. 相似文献