全文获取类型
收费全文 | 411篇 |
免费 | 4篇 |
国内免费 | 1篇 |
专业分类
教育 | 238篇 |
科学研究 | 85篇 |
体育 | 14篇 |
综合类 | 17篇 |
信息传播 | 62篇 |
出版年
2023年 | 3篇 |
2022年 | 2篇 |
2021年 | 3篇 |
2020年 | 5篇 |
2019年 | 7篇 |
2018年 | 7篇 |
2017年 | 4篇 |
2016年 | 7篇 |
2015年 | 15篇 |
2014年 | 27篇 |
2013年 | 60篇 |
2012年 | 35篇 |
2011年 | 29篇 |
2010年 | 17篇 |
2009年 | 24篇 |
2008年 | 24篇 |
2007年 | 32篇 |
2006年 | 26篇 |
2005年 | 26篇 |
2004年 | 5篇 |
2003年 | 10篇 |
2002年 | 16篇 |
2001年 | 7篇 |
2000年 | 6篇 |
1999年 | 2篇 |
1998年 | 4篇 |
1997年 | 6篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1992年 | 3篇 |
1989年 | 1篇 |
排序方式: 共有416条查询结果,搜索用时 15 毫秒
51.
兰德公司"T项目"充分探讨了数字化信息与通讯技术(ICT)对学前教育的影响及学前教育应当采取的回应方式,认为信息技术素养对儿童的数字化生存意义重大,学前教育应担负跨越"数字鸿沟"的使命。因此,当以儿童发展为本,从ICT的使用目的、发展适宜性ICT的界定、相应的支持体系、师资准备、家长参与等方面综合建构有效的工作模式。中国学前教育也当直面数字时代的挑战,基于深入研究寻求ICT在儿童生活中的有效整合。 相似文献
52.
武汉地区交通高职教育的品牌发展战略探讨 总被引:1,自引:0,他引:1
通过对武汉地区交通类高职院校的发展研究,在开拓“交通品牌”做大做强机制、深化教育教学改革、建设交通特色专业类(群)、提高交通高职院校与交通行业密切结合程度等方面进一步落实科学发展观,使交通高职教育能持续、健康、快速地发展,成为武汉地区高职院校中的一道亮丽的“风景线”。 相似文献
53.
李六杏 《合肥联合大学学报》2006,16(3):55-58
人类对更高质量无线通信的需求推动了CDMA技术的出现.CDMA是按照码型结构的差别来分割信号的.在CDMA系统中,用户数的增加相当于背景噪声的增加.在保持高质量通话的同时,CDMA可以容纳更多的用户,CDMA手机的用户每次通话时,系统编码有4.4万亿种可能的排列,具有天然的保密性,其消息在空中信道上被截获的概率几乎为零.CDMA技术的标准化,推进了这项技术在世界范围内的应用. 相似文献
54.
The Determinants of Students' Perceived Learning Outcomes and Satisfaction in University Online Education: An Empirical Investigation* 总被引:1,自引:0,他引:1
Sean B. Eom H. Joseph Wen Nicholas Ashill 《Decision Sciences Journal of Innovative Education》2006,4(2):215-235
In this study, structural equation modeling is applied to examine the determinants of students' satisfaction and their perceived learning outcomes in the context of university online courses. Independent variables included in the study are course structure, instructor feedback, self‐motivation, learning style, interaction, and instructor facilitation as potential determinants of online learning. A total of 397 valid unduplicated responses from students who have completed at least one online course at a university in the Midwest were used to examine the structural model. The results indicated that all of the antecedent variables significantly affect students' satisfaction. Of the six antecedent variables hypothesized to affect the perceived learning outcomes, only instructor feedback and learning style are significant. The structural model results also reveal that user satisfaction is a significant predictor of learning outcomes. The findings suggest online education can be a superior mode of instruction if it is targeted to learners with specific learning styles (visual and read/write learning styles) and with timely, meaningful instructor feedback of various types. 相似文献
55.
Martyn Wild 《Education and Information Technologies》1999,4(4):369-389
This paper serves to report a research study on the use made of two separate mailing lists or listservs, for professional development—Oz-Teachers and UK-Schools. Both lists were, and still are, used by teachers in Australia and the United Kingdom, as well as by teachers across the globe, to communicate electronically with each other. The practice of this communication is typically characterised by text messages that pose questions or offer answers; by threads of discussion based around single or combined themes; and by statements of information. In this context, two windows are opened in this study: one shows a dynamic picture of teachers at work and play in the technology of listservs, developing skills and practices in asynchronous communications. The other looks into the content of many of the postings, demonstrating the practices, views, ideas and concerns teachers have with using technology in traditional school and classroom environments. Whilst this paper provides a detailed overview of the study, the full report of the research programme, of which this study constitutes one part, can be found elsewhere, in Lankshear et al. (1997) and Wild (1999). 相似文献
56.
Engineering education is facing new challenges to effectively provide the appropriate skills to future engineering professionals according to market demands. This study proposes a model based on active learning methods, which is expected to facilitate the acquisition of the professional skills most highly valued in the information and communications technology (ICT) market. The theoretical foundations of the study are based on the specific literature on active learning methodologies. The Delphi method is used to establish the fit between learning methods and generic skills required by the ICT sector. An innovative proposition is therefore presented that groups the required skills in relation to the teaching method that best develops them. The qualitative research suggests that a combination of project-based learning and the learning contract is sufficient to ensure a satisfactory skills level for this profile of engineers. 相似文献
57.
58.
针对传统矢量控制系统磁链观测不准,且需要速度传感器的问题,提出了一种基于MRAS磁链观测、转速估计的无速度传感器异步电机矢量控制系统。介绍了磁链观测、转速估计的MRAS结构,并运用Popov超稳定理论推导出了其对应自适应律,建立了实验系统。实验结果表明,该矢量控制系统在启动、调速、稳态运行时具有良好的静、动态性能,是一种高性能的交流调速系统。 相似文献
59.
在电子商务/电子政务的应用中,很多处理都需要以异步方式进行,JMS规范可以支持应用程序间消息的异步传递。详细论述了利用实现JMS规范的组件HornetQ来完成异步消息传输的过程。 相似文献
60.
夏艺文 《新疆教育学院学报》2009,25(1):84-86
新闻中的时间、地点、人物、原因、结果等传播内容"五要素",在电视新闻类节目中不可或缺,并作为重点被新闻学者研究。文章从具体案例出发,分析传播内容"五要素"在人文科教电视节目中的应用,阐述其在人文科教电视中的重要作用和意义。 相似文献