首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   22306篇
  免费   978篇
  国内免费   293篇
教育   13231篇
科学研究   6863篇
各国文化   14篇
体育   734篇
综合类   861篇
文化理论   27篇
信息传播   1847篇
  2024年   39篇
  2023年   143篇
  2022年   373篇
  2021年   607篇
  2020年   740篇
  2019年   562篇
  2018年   373篇
  2017年   452篇
  2016年   607篇
  2015年   710篇
  2014年   1353篇
  2013年   1812篇
  2012年   1981篇
  2011年   1960篇
  2010年   1312篇
  2009年   1042篇
  2008年   1224篇
  2007年   1508篇
  2006年   1488篇
  2005年   1297篇
  2004年   1053篇
  2003年   917篇
  2002年   791篇
  2001年   573篇
  2000年   279篇
  1999年   118篇
  1998年   84篇
  1997年   47篇
  1996年   43篇
  1995年   20篇
  1994年   23篇
  1993年   11篇
  1992年   8篇
  1991年   11篇
  1990年   5篇
  1989年   4篇
  1988年   1篇
  1957年   6篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
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   
92.
Product cycles have long been used in software development, but libraries can also benefit from a structured product life cycle to help manage technology development and acquisition. This article outlines a proposed product cycle for library technology management with information on implementing each step of the cycle. It will also include information for librarians assessing the success of structured technology management.  相似文献   
93.
Voice assistants are software agents that can interpret human speech and respond via synthesized voices. Apple’s Siri, Amazon’s Alexa, Microsoft’s Cortana, and Google’s Assistant are the most popular voice assistants and are embedded in smartphones or dedicated home speakers. Users can ask their assistants questions, control home automation devices and media playback via voice, and manage other basic tasks such as email, to-do lists, and calendars with verbal commands. This column will explore the basic workings and common features of today’s voice assistants. It will also discuss some of the privacy and security issues inherent to voice assistants and some potential future uses for these devices. As voice assistants become more widely used, librarians will want to be familiar with their operation and perhaps consider them as a means to deliver library services and materials.  相似文献   
94.
展览开发是博物馆展览的基础问题,随着公众参与逐渐被提上研究议程,也促使我们去思考展览开发过程中如何引入公众参与。美国的科技博物馆展览开发已经建立了较为完善的公众参与体系:明确的参与者角色、系统的参与理念和阶段式的参与行为,已经获得了普遍的应用。借鉴美国博物馆的经验,我国博物馆展览的开发,应在构建展览评估体系的基础上,进一步了解和认识公众,拓展公众参与的方式,并不断寻求公众的声音。  相似文献   
95.
《体育与健康》课程标准的出台意味着该课程的全面转型,学习方式的转变是其核心问题之一。本文结合教学实际,揭示了在传统体育课教学中被忽视的合作学习的重要性,从不同角度分析了新课程实施合作学习的条件,并进一步提出了实施合作学习的要点。  相似文献   
96.
当前,面临转型期的图书馆事业存在着一系列的问题,解决的途径和对策需要我们从技术、经济、人才三方面进行认真研究。  相似文献   
97.
浅谈电子技术实验教学改革   总被引:1,自引:0,他引:1  
针对提高学员的3种能力进行电子技术实验的教学改革,根据实验教改的设计思路,介绍了实验教改的实施方案及实施过程,可以充分发挥学员的潜能,培养学员的创新能力。  相似文献   
98.
Human anatomical specimen museums are commonly used by medical, nursing, and paramedical students. Through dissection and prosection, the specimens housed in these museums allow students to appreciate the complex relationships of organs and structures in more detail than textbooks could provide. However, it may be difficult for students, particularly novices, to identify the various parts of these anatomical structures without additional explanations from a docent or supplemental illustrations. Recently, augmented reality (AR) has been used in many museum exhibits to display virtual objects in videos captured from the real world. This technology can significantly enhance the learning experience. In this study, three AR-based support systems for tours in medical specimen museums were developed, and their usability and effectiveness for learning were examined. The first system was constructed using an AR marker. This system could display virtual label information for specimens by capturing AR markers using a tablet camera. Individual AR markers were required for all specimens, but their presence in and on the prosected specimens could also be obtrusive. The second system was developed to set the specimen image itself as an image marker, as most specimens were displayed in cross section. Visitors could then obtain the label information presented by AR without any markers intruding on the display or anatomical specimens. The third system was comprised of a head-mounted display combined with a natural click interface. The system could provide visitors with an environment for the natural manipulation of virtual objects with future scalability.  相似文献   
99.
中文电子病历的分词及实体识别研究   总被引:1,自引:0,他引:1  
[目的/意义]健康医疗大数据是我国重要的基础性战略资源,本研究对中文电子病历分词与实体识别的探讨与实证较好地完成了医疗数据的信息抽取任务,对今后医疗大数据在语义层面的应用发展具有重要意义。[方法/过程]本研究首先融合权威词表、官方标准、健康网站数据及其他医学补充词库构建了词语数量级达到10万的医学词表;然后对电子病历的字段进行分词,对比了jieba工具、导入词典后的jieba、无监督学习及AC自动机4种模型的分词效果;最后,以自动分词和人工标注结果为语料,实现基于条件随机场的电子病历实体识别研究,并比较不同实体类别以及不同文本特征下的实体识别效果,选出最优模板。[结果/结论]分词结果显示,AC自动机的效果最好,F值可达82%;实体识别结果表明,"检查"和"疾病"实体的识别效果最好,而"症状"的识别效果不太理想。  相似文献   
100.
On the fiftieth anniversary of the first publication of English in Education, this article reviews the journal's contribution to research and practice in the teaching of English. A thematic analysis based on close study of a sample of volumes is arranged chronologically (to show the development of ideas and practices) and thematically in terms of language mode (speaking; writing; reading, including new technologies). The article argues that the journal archive can shed light on the educational past in ways that can effectively inform the educational present and help to set agenda for the future.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号