Comparison of Alternative Channels in Cross Media Publishing     

Andreas Veglis 《Publishing Research Quarterly》2008,24(2):111-123

This paper attempts a direct comparison of the available alternative channels that can be employed in a cross media publishing scheme. More precisely it examines the content, the publishing speed, and the rhythm of the publishing channels. Interesting conclusions are drawn concerning the characteristics of each channel. A new publishing channel is proposed in order to allow newspapers to directly compete with radio and TV channels.  相似文献   

新课程下语文阅读教学中“度”之探微     

黄乃佳 《钦州学院学报》2008,23(5)

在目前语文阅读教学中,出现了一些把握“无度”的做法,不但影响教学效果,而且会影响语文课程改革的顺利推进。因此,切实把握阅读教学中的“度”,那就是：教学目标要适度;课堂提问要适度;多元解读要适度;拓展延伸要适度。  相似文献   

色谱保留指数IR与有机醇结构相关性的拓扑研究     

冀兰 《青海师专学报》2004,24(5):92-94

根据拓扑学机理，本文运用多元线性回归分析将37种有机醇化合物的结构拓扑指数与气相色谱保留指数相关联，结果表明，具有良好的结构性质相关关系．  相似文献   

基于方案模糊偏好信息的一种多属性决策方法     

李甜甜  王继彬  魏翠萍 《洛阳工业高等专科学校学报》2008,18(1)

针对决策者对方案有模糊偏好信息的多属性决策问题,提出一种新的方法.通过构造优化模型,反映决策者对方案的主观偏好信息,求出属性权重向量,从而对方案进行排序.最后利用实例说明该方法的可行性.  相似文献   

A tale of two tests: The role of topic and general academic knowledge in traditional versus contemporary scenario-based reading     

《Learning and Instruction》2021

We compared high school students’ performance in a traditional comprehension assessment requiring them to identify key information and draw inferences from single texts, and a scenario-based assessment (SBA) requiring them to integrate, evaluate and apply information across multiple sources. Both assessments focused on a non-academic topic. Performance on the two assessments were moderately correlated (r = 0.57), but the SBA was more difficult (Study 1; n = 342). The two assessments similarly depended on basic reading skills but diverged in the relation to academic knowledge and (non-academic) topic knowledge (Study 2; n = 1107). Academic knowledge was highly predictive of traditional comprehension, but less so for SBA. Topic knowledge was more predictive of SBA than traditional comprehension. Thus, the two assessments tap into similar constructs related to comprehension; however, the level of topic knowledge is more important for performance on scenario-based, multiple-source reading tasks, whereas academic knowledge is more important for traditional reading comprehension tasks.  相似文献   

多重数字水印技术   总被引：1，自引：0，他引：1  

张桂红  张敏瑞 《科技广场》2007,(3):130-133

数字水印技术在保护数字产品版权等方面起到了重要的作用。随着计算机和因特网技术的飞速发展,对数字水印技术的要求也越来越高,多重数字水印就是应时而生的一种技术。本文从图像与文本两大方面分析总结了多重数字水印的现有算法,讨论了其应用及优缺点并提出了多重数字水印下一步的发展方向,对其进一步研究有着重要的意义。  相似文献   

基于交叉免疫算法的多用户检测器     

殷志锋  田亚菲 《许昌学院学报》2006,25(2):47-49

基于传统的免疫算法,提出了一种多种群并行遗传交叉免疫的多用户检测器,其在加快收敛速度的同时避免了因近亲繁殖容易造成早熟收敛的缺陷.仿真结果表明:所提出的检测器在误码率方面有良好的性能.  相似文献   

How children living in poor areas of Dar Es Salaam,Tanzania perceive their own multiple intelligences     

Pauline Dixon  Steve Humble  David W. Chan 《牛津教育评论》2016,42(2):230-248

This study was carried out with 1,857 poor children from 17 schools, living in low-income areas of Dar Es Salaam, Tanzania. All children took the ‘Student Multiple Intelligences Profile’ (SMIP) questionnaire as part of a bigger project that gathered data around concepts and beliefs of talent. This paper sets out two aims, first to investigate the structural representation of the self perceived multiple intelligences for this set of children and second to discuss how the best fit model might reflect children’s culture and their school experiences. After carrying out exploratory factor analysis, a four factor first order model was shown to have a good fit. A higher order factor solution was investigated owing to the correlation of two latent constructs. In order to provide some insight into the multiple intelligences construct the relationship between the SMIP items, student test outcomes and attitudes to learning were examined. The item groupings were explored through African cultural beliefs around intelligences indigenous to African communities.  相似文献   

信息熵在多项选择题质量分析中的应用     

杜鹏东  孙涛  田振清 《现代教育技术》2006,16(3):36-39

多项选择题是各种测试中使用的较为广泛的题型之一,施测后对题目各选项的有效性做出判断可为评价测试质量提供重要参考依据。本文由分析多项选择问题的信息熵入手,给出多项选择题等价选法个数d的计算公式。同时,对多项选择题之间的质量比较问题,给出了使用相对熵的比较方法。  相似文献   

Multiple description coding with spatial-temporal hybrid interpolation for video streaming in peer-to-peer networks     

YAO Jason  CHEN Homer H 《浙江大学学报(A卷英文版)》2006,7(5):894-899

INTRODUCTION Multimedia services over the Internet are be- coming popular due to the widespread deployment of broadband access. However, the conventional cli- ent-server architecture severely limits the number of simultaneous users, especially for bandwidth inten- sive applications such as video streaming. P2P net- works, on the other hand, offer a solution to the scalability problem. As a node joins a P2P network, it not only consumes resources but also contributes its bandwidth or comp…  相似文献