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奉国和 《现代图书情报技术》2006,1(5):74-76
运用有限状态图设计图书馆语音自动应答系统, 以弥补图书馆现有系统的不足，实现以读者为中心的新型信息服务模式，使图书馆的信息服务在广度、深度、效率等方面都有较大的提高。 相似文献
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Oh and LaRose (2016) contended that problem severity and channel publicness shape support seekers’ goals, time spent composing messages, and the sophistication of those messages. The current study seeks to replicate and extend Oh and LaRose’s study to produce a more accurate understanding of the factors that influence the sophistication of support-seeking messages online. Support seekers’ goals varied according to the severity of a stressor and the publicness of a channel, and the amount of time people spent composing a message influenced its sophistication. We extend the original study by examining associations that were not initially tested. Time spent composing messages mediated the influence of problem severity on the quality of people’s messages, and this effect was moderated by channel publicness. 相似文献
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This study examined perceptions of college of education students and their experiences with Channel One, a privately-owned
news service used in public education. Given that about one-third of middle and high schoolers in the US view the broadcast
every school day, the authors surveyed 172 freshmen to discern their views and attitudes toward Channel One programming and
commercials and the role colleges and universities might play in relation to this media service. While most studies on Channel
One have been conducted from a K-12 point of view, the goal of this study was to reconsider the topic from the perspective
of prospective teachers and post-secondary education.
A. J. Angulo is Assistant Professor of Social Foundations, Winthrop University. He received an Ed.D. and Ed.M. from Harvard University.
His research interests include history of education, technology and education, and student rights.
Susan K. Green is Associate Professor of Educational Psychology, Winthrop University. She received a Ph.D. in social psychology from Loyola
University, Chicago and a Ph.D. in educational psychology and research from the University of South Carolina, Columbia. Her
interests include classroom assessment, motivational and instructional strategies to promote learning, and multicultural issues
in education. 相似文献
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以长江某段设计水位和整治线宽度的确定和冲淤等值线图的绘制为例，介绍了MATLAB软件的特点及在航道整治工程中的应用。 相似文献
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从SAN技术特点和数字图书馆的数字资源永久保存战略出发，阐述了SAN作为存储系统的优势，并通过实际的物理模型，给出了基于FC—SAN的数字资源永久保存方案。 相似文献
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自愈环是SDH组网最常用的结构方案,本论文探讨了几种自愈环的原理,分析其各自的特点及应用场合,着重研究了各种自愈环的容量,得出了复用段保护环信道利用率要大大高于通道保护倒换环的结论,并且论述了如何根据网络所处层次、业务分布等原因灵活使用各种自愈环。 相似文献
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【目的】 了解我国医学期刊微信视频号运营现状,探究现存问题并提出建议,为更多医学期刊发展微信视频号提供思路。【方法】 采用网络搜索法对《中文核心期刊要目总览(2020版)》收录的医药、卫生类期刊名称进行检索,获取期刊开通微信视频号的情况、信息资料、运营情况等相关数据进行统计整理、分析,总结问题并提出有效发展策略。【结果】 医学期刊微信视频号存在开通率低、信息资料不完善、运营意识不强、推送规划不够、平台活跃度不高、渠道引流不足等问题。【结论】 医学期刊在微信视频号领域具有较大发展空间,建议充分发挥新型视频媒介优势及自身学科优势,积极投身微信视频号,重视平台建设,提高运营意识,构建推送体系,并注重用户互动性及多渠道引流,提升微信视频号的传播能力。 相似文献
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运用文献资料、逻辑分析等方法,对我国电视体育频道的设置格局与运营状况进行了研究。研究结果:我国体育频道通常依据各电视台所在的行政区域垂直分布,行政归属分属于各电视台,目前我国境内尚没有广电系统以外的民间或社会力量拥有的体育频道。与我国区域经济发展的格局相呼应,体育频道在全国分布并不平衡,有影响力的强势体育频道多分布在经济发达、人口众多、电视媒体实力雄厚的省、市和地区。大部分体育频道播出内容以体育节目为主,但也包括其他非体育节目类型,直播赛事的比例也普遍低于国外著名体育频道,说明我国体育频道播出专业化水平还有待提高。中央台五套在电视体育节目收视市场显示了强大的竞争实力,我国体育频道发展还处于央视"一枝独秀"的格局,体育频道"百花齐放"的竞争格局还远未形成。 相似文献
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低密度奇偶校验（LDPC）码是一种具有稀疏奇偶校验矩阵的线性分组码,其性能可逼近香农限。由于其具有优异的性能,非常适合在未来的无线通信系统中应用,已成为信道编码领域的研究热点。DVB—s2是欧洲数字视频广播项目组在2003年开发出来的第二代卫星广播标准,采用了LDPC码作为前向纠错码。文章在分析LDPC码的基础上,研究... 相似文献