全文获取类型
收费全文 | 14090篇 |
免费 | 322篇 |
国内免费 | 638篇 |
专业分类
教育 | 6259篇 |
科学研究 | 3410篇 |
各国文化 | 19篇 |
体育 | 411篇 |
综合类 | 458篇 |
文化理论 | 8篇 |
信息传播 | 4485篇 |
出版年
2024年 | 4篇 |
2023年 | 57篇 |
2022年 | 215篇 |
2021年 | 444篇 |
2020年 | 476篇 |
2019年 | 324篇 |
2018年 | 195篇 |
2017年 | 206篇 |
2016年 | 189篇 |
2015年 | 319篇 |
2014年 | 886篇 |
2013年 | 1102篇 |
2012年 | 1124篇 |
2011年 | 1213篇 |
2010年 | 880篇 |
2009年 | 870篇 |
2008年 | 976篇 |
2007年 | 945篇 |
2006年 | 994篇 |
2005年 | 772篇 |
2004年 | 755篇 |
2003年 | 616篇 |
2002年 | 469篇 |
2001年 | 408篇 |
2000年 | 263篇 |
1999年 | 123篇 |
1998年 | 122篇 |
1997年 | 49篇 |
1996年 | 20篇 |
1995年 | 4篇 |
1994年 | 6篇 |
1993年 | 5篇 |
1992年 | 8篇 |
1991年 | 5篇 |
1990年 | 1篇 |
1989年 | 3篇 |
1985年 | 2篇 |
排序方式: 共有10000条查询结果,搜索用时 281 毫秒
1.
2.
随着现代信息技术的快速发展,"互联网+"这一概念频繁出现在公众视野。同时,,对高校体育事业的发展也产生了不可估量的影响。在《体育发展"十三五"规划》中,再次表明要实施"互联网+体育"战略,要将"互联网+"与全民运动融合到一起。本文在简要分析高校大学生课外体育活动现状基础上,重点探讨了基于手机APP创新普通高校课外体育活动的具体建议。 相似文献
3.
体医融合是党和政府提出的健康中国国家战略的具体实施措施之一,它不仅为体育健康产业与医疗行业的结合指明了方向,而且也将促成一个新的行业,或者说是体育健康产业中的一个新的分支。体医融合需要实现体育运动促进健康过程的量化控制,实现医学治疗与运动锻炼的完美结合,因此它是新事物,需要从基础研究到管理、实施全方位的创新与构建。 相似文献
4.
体医融合是获得健康的根本法则之一,是民族健康强盛的必然要求。探索我国体医融合之路,必须基于文化自信,紧跟时代主旋律,借鉴传统体育和中医融合的历史经验及其启示。仔细体会传统体育中武术、养身体操等运动对体医融合的贡献,在学习借鉴传统体育和传统医学的基础上,探讨如何走出一条政府主导、社会协同、学校先行、法制健全的协同发展道路。研究认为体医融合试点践行中,可以在以下四个方面加大力度:制度保障,法规护航;培养人才,科学指导;学校为主,三教合一;媒介传播,课程参与。 相似文献
5.
本文通过研究当前高校档案管理的重要性,结合实际的档案需求情况,分析了档案专题数据库基本的几种类型,来满足高校群体对档案信息的个性化需求,并通过对档案专题数据库模式的分析,制定了具体的应用措施,以便能够为相关人员提供信息参考。 相似文献
6.
[目的/意义]本文通过对2019年国际数字图书馆联合会议(Joint Conference on Digital Library,JCDL)的录用论文进行整体回顾,梳理了本届年会的最新研究成果与学科发展动态,以助国内图情领域学者更好地了解本届年会成果,把握国际数字图书馆领域研究的前沿热点问题。[研究设计/方法]采用文献综述的方法进行研究。[结论/发现]本届年会更加关注数字图书馆如何通过多源数据的融合、数字人文馆藏资源的利用等实现信息服务深度融合;数字图书馆如何通过海量大数据挖掘与利用、用户行为分析提升其服务水平;如何通过对学术文本资源深入挖掘,实现信息计量学在学术评审、学术评价等方面的创新应用。[创新/价值]本文揭示了国际数字图书馆领域的最新发展态势,展望了未来数字图书馆领域的学术前沿方向。 相似文献
7.
In this paper, the optimal synchronization controller design problem for complex dynamical networks with unknown system internal dynamics is studied. A necessary and sufficient condition on the existence of the optimal control minimizing a quadratic performance index is given. The optimal control law consists of a feedback control and a compensated feedforward control, and the feedback control gain can be obtained by solving the well-known Algebraic Riccati Equation (ARE). Especially, in the presence of unknown system dynamics, a novel adaptive iterative algorithm using the information of system states and inputs is proposed to solve the ARE to get the optimal feedback control gain. Finally, a simulation example shows the effectiveness of the theoretical results. 相似文献
8.
Smart cities employ information and communication technologies to improve: the quality of life for its citizens, the local economy, transport, traffic management, environment, and interaction with government. Due to the relevance of smart cities (also referred using other related terms such as Digital City, Information City, Intelligent City, Knowledge-based City, Ubiquitous City, Wired City) to various stakeholders and the benefits and challenges associated with its implementation, the concept of smart cities has attracted significant attention from researchers within multiple fields, including information systems. This study provides a valuable synthesis of the relevant literature by analysing and discussing the key findings from existing research on issues related to smart cities from an Information Systems perspective. The research analysed and discussed in this study focuses on number of aspects of smart cities: smart mobility, smart living, smart environment, smart citizens, smart government, and smart architecture as well as related technologies and concepts. The discussion also focusses on the alignment of smart cities with the UN sustainable development goals. This comprehensive review offers critical insight to the key underlying research themes within smart cities, highlighting the limitations of current developments and potential future directions. 相似文献
9.
10.
Integrating knowledge across a firm's value chain (e.g. between R&D, marketing and manufacturing functions), which we denote “Knowledge Integration” (KI), has been consistently found to be a strong predictor of product innovation performance in the management literature. Such cross-functional integration does not occur by chance, but by design, as a result of managerial practices and organizational arrangements. The significant heterogeneity characterizing the diffusion of cross-functional integration across firms is suggestive of the well-known tension between internal and external diffusion of knowledge. In this paper, we argue that the hidden cost of KI is to expose firms to a higher risk of knowledge leakages and provide the first systematic empirical evidence of this apparent tension between internal and external knowledge flows. Based on data from the CMU Survey (one of the rare datasets offering observables on both sides of the tension for a representative set of R&D active firms in the US), we investigate the impact of knowledge spillovers to competitors on internal cross-functional knowledge integration involving the R&D function among manufacturing firms. We find that the intensity of (tacit) R&D knowledge spillovers at the industry-level has a negative and significant impact on the likelihood that firms adopt or achieve KI. Our results therefore suggest that firms may trade their optimal innovative performance against superior appropriability of their rents. 相似文献