卫星宽带视频资源教学系统在暨南大学的应用与实践

根据视频资源建设的需要,提出建设卫星宽带多媒体教学系统的必要性。从系统的设计出发,介绍系统的前端、控制端、终端、网络设计,直播和点播功能实现的关键技术,如P2P技术、IP网络视频流录制技术和网络在线视频编辑处理技术,以及系统的应用状况和应用过程中出现的问题,以期推动教学信息化的发展。     

基于GPS的无人车导航控制系统的设计

基于GPS的无人车导航控制系统由无人车导航终端和监控站两部分组成。采用GPS技术实现无人车的实时定位和跟踪;利用串口通信编程与百度地图的二次开发实现监控站软件设计,通过无线传输实现无人车与监控站的信息交互,最终控制无人车按规定路线行驶。     

Effectiveness of a satellite educational television program for Ethiopian secondary education

This study examined the actual practice and effectiveness of a satellite educational TV program in Ethiopian secondary schools. Participants in the survey were 228 students and 63 teachers from secondary schools. The results of the data analysis indicate that Ethiopian students and teachers scored highly in the evaluation areas. Levels of students’ general satisfaction with the satellite educational TV program were not equal for the variables of location and gender. It was also found that for students, learning demand, learning content, and class management were factors affecting their satisfaction with the satellite educational TV programs. For teachers, learning content and class management were the factors. The statistical mean difference in the satisfaction with the satellite educational TV program was between students and teachers. These findings suggest that the satellite educational TV program has the possibility of improving the quality of education in Ethiopian secondary schools.     

在国际公约条件下,对我校航海专业体育教学改革的思考

为提高我校航海专业体育教育质量,提高学生身体素质,使他们在未来的工作岗位上,能更好地为航运事业服务。文章探讨和研究了集美大学航海专业体育教学改革和发展的思路。阐述了航海专业是一种特殊的专业,学生的体育教育应与其他专业有所区别。建议成立航海运动俱乐部,更新原有的航海运动设施,并提出增强学员各项素质的建议和措施。     

How does visual manipulation affect obstacle avoidance strategies used by athletes?

Research examining our ability to avoid obstacles in our path has stressed the importance of visual input. The aim of this study was to determine if athletes playing varsity-level field sports, who rely on visual input to guide motor behaviour, are more able to guide their foot over obstacles compared to recreational individuals. While wearing kinematic markers, eight varsity athletes and eight age-matched controls (aged 18–25) walked along a walkway and stepped over stationary obstacles (180° motion arc). Visual input was manipulated using PLATO visual goggles three or two steps pre-obstacle crossing and compared to trials where vision was given throughout. A main effect between groups for peak trail toe elevation was shown with greater values generated by the controls for all crossing conditions during full vision trials only. This may be interpreted as athletes not perceiving this obstacle as an increased threat to their postural stability. Collectively, findings suggest the athletic group is able to transfer their abilities to non-specific conditions during full vision trials; however, varsity-level athletes were equally reliant on visual cues for these visually guided stepping tasks as their performance was similar to the controls when vision is removed.     

Watching MOOCs together: investigating co-located MOOC study groups

Research suggests that massive open online course (MOOC) students prefer to study in groups, and that social facilitation within the study groups may render the learning of difficult concepts a pleasing experience. We report on a longitudinal study that investigates how co-located study groups watch and study MOOC videos together. The study was conducted with on-campus flipped classroom students. Our subjects reported an overall high satisfaction with the study group style. The research reveals that students like to stay synchronized in the group while watching MOOC videos. However, they have to find a balance between synchronization, video interaction, and the amount of conversation. Watching MOOCs on a shared display addresses the need of synchronicity, and the distribution of control can increase the video interactivities.     

国内部分高校卫星电视接收系统建设现状分析--以网络资源调研为主体的分析

依据网络搜索的35所拥有卫星电视接收系统的高等院校网站内容作为研究对象，从网站提供的数据、设备、节目内容、节目利用方式等方面的现状进行分析研究，旨在为国内高校的卫星电视接收系统的建设提供发展思路。     

网络信息资源管理系统的基本要素及其运作机理探讨

网络信息资源管理系统的基本要素有四 :网络信息、用户需求、网络导航员和系统开发与维护专家、计算机与网络应用环境。网络信息资源管理系统的运作机理包括 :网络信息的采集和网络信息的组织。面对种类繁多且杂乱无章的网络信息资源 ,建立一个网络信息资源管理系统 ,对特定的网络信息进行收集、整理和有序化并经常剔旧纳新 ,是非常必要的。参考文献 4。     

GPS操作模拟器的数模设计与编程

对ＧＰＳ操作模拟器所采用的卫星运行和船舶航行中的船位、定位选星等几个主要数模的建立、编程框图和编程中应注意的问题进行了介绍。该数模已用在ＧＬ—１型ＧＰＳ操作模拟器样机上；模拟效果良好。     

全国文化信息资源共享工程卫星数据广播系统终端应用模式探析

随着卫星建设的不断推进,现有卫星终端在应用过程中显现了一些问题:卫星传输的资源与个性化服务需求之间存在一定差距,终端操作复杂,建设及运行维护成本较高。为了改进卫星终端服务模式存在的弊端,增强卫星终端设备及软件的易用性,实现定制化资源传输,应采用双向卫星通信及数据接收机顶盒技术,以改进当前卫星终端应用模式,进一步提高信息服务水平。