Evolving,Not Extinct: Music Reference in the 21st Century     

Donna M. Arnold 《The Reference Librarian》2013,54(2):146-150

As reference work changes dramatically due to computer technology, tangible reference collections are disappearing from academic libraries in many fields. Such is not the case in music research libraries, however. While many important online music reference resources exist, many print resources remain vitally important, and because of limited funding, they are unlikely to be digitized soon. Music libraries and music reference collections are currently a combination of traditional and online resources, enhanced by human expertise. This beneficial combination should be maintained.  相似文献   

Challenges and Support When Teaching Science Through an Integrated Inquiry and Literacy Approach     

Marianne Ødegaard  Berit Haug  Sonja M. Mork  Gard Ove Sørvik 《International Journal of Science Education》2013,35(18):2997-3020

In the Budding Science and Literacy project, we explored how working with an integrated inquiry-based science and literacy approach may challenge and support the teaching and learning of science at the classroom level. By studying the inter-relationship between multiple learning modalities and phases of inquiry, we wished to illuminate possible dynamics between science inquiry and literacy in an integrated science approach. Six teachers and their students were recruited from a professional development course for the current classroom study. The teachers were to try out the Budding Science teaching model. This paper presents an overall video analysis of our material demonstrating variations and patterns of inquiry-based science and literacy activities. Our analysis revealed that multiple learning modalities (read it, write it, do it, and talk it) are used in the integrated approach; oral activities dominate. The inquiry phases shifted throughout the students' investigations, but the consolidating phases of discussion and communication were given less space. The data phase of inquiry seems essential as a driving force for engaging in science learning in consolidating situations. The multiple learning modalities were integrated in all inquiry phases, but to a greater extent in preparation and data. Our results indicate that literacy activities embedded in science inquiry provide support for teaching and learning science; however, the greatest challenge for teachers is to find the time and courage to exploit the discussion and communication phases to consolidate the students' conceptual learning.  相似文献   

一种基于视频的DEW水印算法     

谢斌  钟文涛  涂荣强 《科技广场》2008,(1):117-119

采用差分能量水印(DEW)算法,对视频数字作品进行了数字水印的嵌入、检测和提取研究。实验结果表明,该算法计算简单、速度快、易于实现,视频信号里可编码的数据量大,可以隐藏较多的信息,并且还可以满足水印的实时嵌入和提取。  相似文献   

结合DirectShow技术基于B/S架构的住宅小区视频监控平台设计     

邓华 《人天科学研究》2009,(11)

介绍了一种结合DirectShow技术的基于B/S架构的住宅小区视频监控平台的设计方案。该平台由监控端、服务器端和浏览器端组成,可实现多路监控、视频录像及回放和定点监控缩放等功能,且不需要安装额外的客户端软件和解码器,有效地提高了平台监控的集中管理效率和用户使用的便捷性。  相似文献   

H.264在网络视频监控系统中的应用研究     

肖吉军  ;陈利学 《人天科学研究》2009,(6)

由于具有压缩率高、图像失真率低、网络适应性强的特点,H.264已经成为网络视频监控系统应用研究中的热门。针对视频压缩效率和实时传输之间的矛盾,以及视频图像质量要求的提高,根据H.264和网络监控系统的技术原理,分析了H.264在网络视频监控系统中的应用优势和可行性,旨在提出一套基于H.264的网络监控系统解决方案。  相似文献   

Web search engine multimedia functionality     

Dian Tjondronegoro  Amanda Spink 《Information processing & management》2008

Web search engines are beginning to offer access to multimedia searching, including audio, video and image searching. In this paper we report findings from a study examining the state of multimedia search functionality on major general and specialized Web search engines. We investigated 102 Web search engines to examine: (1) how many Web search engines offer multimedia searching, (2) the type of multimedia search functionality and methods offered, such as “query by example”, and (3) the supports for personalization or customization which are accessible as advanced search. Findings include: (1) few major Web search engines offer multimedia searching and (2) multimedia Web search functionality is generally limited. Our findings show that despite the increasing level of interest in multimedia Web search, those few Web search engines offering multimedia Web search, provide limited multimedia search functionality. Keywords are still the only means of multimedia retrieval, while other methods such as “query by example” are offered by less than 1% of Web search engines examined.  相似文献   

Students See,Students Do?: Inducing a Peer Norm Effect for Oral Source Citations     

C. Wesley Buerkle  Christopher C. Gearhart 《Communication Research Reports》2017,34(2):115-123

  相似文献   

Planning,Implementing, and Assessing a CD Reclassification Project     

Robert B. Freeborn 《Cataloging & classification quarterly》2017,55(7-8):578-587

In 2015, plans were put in place to relocate the entire compact disc collection of the Music and Media Center in the Arts and Humanities Library at Penn State's University Park campus, and to reclassify them from an accession number system to a more user-browsable one based on the Library of Congress Classification scheme. This article looks at the path that has being taken to reach this goal, and provides an initial assessment of the project at the halfway point.  相似文献   

视频会议系统及其在远程教育中的应用     

傅宝玉 《湖北广播电视大学学报》2005,22(2):117-119

本文论述了视频会议系统的概念、分类、特点及系统的组网标准，阐述了正确选用标准的重要性并介绍了最新视频传输技术的协议规范H．323标准。文中重点讨论了视频会议系统应用于远程教学的主要功能及典型应用方案。  相似文献   

大学视频公开课的价值探讨及案例分析     

莫春柳  陈和恩 《教育教学论坛》2019,(24):201-202

大学视频公开课是在线开放课程中的一种,它仅通过授课视频完成课程内容的教学,具有明显的导论和科普特征。提高公众的科学、文化素养是大学精品视频公开课的价值所在。建设视频公开课,需要明确课程教学目标,并依据教学目标来选择、提炼教学内容。在制作教学视频时要关注学习者的体验,确保成片中的多媒体演示及板书完整、清晰。  相似文献