数字图书馆信息资源建设中的版权问题

信息资源建设主要是解决数字化馆藏，是数字图书馆的基础，本文主要探讨馆藏文献数字化、网络资源馆藏化和数据库建设中涉及的版权问题。     

国家开放大学体系中的数字化学习资源建设探究

数字化资源建设推动了远程教育的发展,加快了教育信息化的进程。但数字化资源建设在取得成绩的背后,也存在着一些不容忽视的问题。针对数字化学习资源建设中存在的问题提出了发展战略,对数字化学习资源建设环境构建及建设方法进行了探究,并对数字化学习资源建设问题进行了重点阐述。数字化学习资源建设要想走向良性发展轨道就必须推广标准的制作技术规范,优化资源建设的环境,不断更新教育、管理理念,建立完善评价机制等。     

eHPE: a history of the future

A grand convergence looms. It seems at least plausible that health and physical education may soon be lived by students in ways that are radically different from the past and sharply at odds with the imaginings of its founders and generations of academic aficionados. Perhaps in some respects, the differences will be superficial and less important than the continuities. Nonetheless, I draw connections between some recent futurist literature, developments in social theory and trends in health education, physical education and school-based health intervention—fields that I collectively call ‘HPE’—in order to imagine their digital futures. I contend that there is much for these fields to consider as developments in digital technology, the commercialisation of education, the spread of surveillance culture and medicalisation reshape how people think about HPE and its reason for being. But rather than an apocalyptic warning, this is an invitation to others to engage with some important questions that, although already urgent, have gone largely unnoticed. For example, what kind of thing will eHPE be if/when it exists primarily to generate profits and monitor and measure the minutiae of everyday life? At the very least, my argument here is that if it is not already the case, questions of pedagogical process and effectiveness may soon struggle for relevance in HPE's digital future.     

Kinematics of cycling in relation to anterior knee pain and patellar tendinitis

The coronal and sagittal plane leg movements of 24 experienced male cyclists were assessed using video analysis while cycling on a Kingcycle windload simulator. The cyclists were grouped into those with a history of injury and an asymptomatic group on the basis of self-reported injury status. The ages, cycling experience, competition distances and competition speeds of the two groups were compared using Student's t-test. No significant differences (P?<0.05) were found for any of these variables. The maximum and minimum shank adduction, shank adduction velocities, knee flexion and ankle dorsiflexion values were also compared using Student's t-test. Significant differences were found at the point of maximum adduction (1.9°; P?=?0.019) and minimum dorsiflexion (4.9°; P?=?0.014). These differences indicated more dorsiflexion and greater abduction on the part of the symptomatic cyclists, supporting previous research that found that cyclists with a history of injury differ from those without a history of injury in the coronal plane leg movement patterns they adopt. Also, the most extreme medial position of the knee relative to the ankle occurred during knee extension. This supports the potential injury mechanism proposed by Francis (1986), which had previously only been examined using coronal plane kinematics.     

Effect of endpoint conditions on position and velocity near impact in tennis

Smoothing to obtain accurate position and velocity data near impacts in sport biomechanics studies is complicated by the accelerations of impact, endpoint effects and the smoothing technique used. Wrist goniometric data with two levels of random noise added were used to examine three endpoint modelling conditions for obtaining accurate position and velocity data at impact in the tennis forehand. The common approach of smoothing through impact created distortions of the position signal up to 100 ms before impact and resulted in consistent underestimations (-3.2%) of wrist angle and angular velocity (-67.9%) at impact. New linear and polynomial extrapolation conditions smoothed with all techniques provided lower root mean squared errors than the smoothing-through-impact condition, with discrete wrist positions at impact within 1.1% of the criterion data. Both the new linear and polynomial conditions can be used to make more accurate angular position and velocity estimates for tennis impacts, whereas the smoothing-through-impact condition creates spurious decreases in speed before impact that in the past have been assumed to be aspects of skilful movement.     

《数字电路》课程教学改革探讨

目前在《数字电路》课程中讲述的内容主要是中小规模集成电路,随着电子技术的发展,大规模和超大规模集成电路已被广泛应用。为了适应科学技术的发展,培养适合时代发展要求的高质量专业人才,分析了目前《数学电路》课程教学中存在的不足以及难以适应当前教学发展需要的状况,从教学内容、实践内容、教学方法、教学手段等方面对该课程的教学改革提出几点建议。     

基于数字人的CT＆MRI图像融合及三维重建

目的：以“中国数字人男一号”CT图像、MRI图像为研究素材,对同一人体同期CT图像与MRl图像进行融合,并对融合效果进行比较评价。在此基础上实现同期CT图像与MRI图像的三维融合重建图像。方法：首先介绍小波变换图像融合方法、算法、图像融合过程与步骤;然后对CT图像进行骨骼组织分割;其次,通过使用图像预处理及二维空间变换处理,解决两种骨骼组织分割图像参数差异较大的问题;最后,对这两种模式的骨骼组织分割图像在配准的基础上进行融合,并给出融合结果。结果：实现了CT图像和MRI图像的二维空间融合及三维重建。结论：小波变换图像融合方法对常用的CT／MRI图像融合及三维重建是一种有效的方法。     

竞技运动视频识别与比较系统的研究

竞技运动视频的识别与比较系统是现代科技训练方法在竞技运动训练中的实现。以定点拍摄的跳远运动视频为研究对象,实现了视频中运动目标分割和提取,进行对运动目标进行合成比较。通过对运动员实际训练体态或动作与标准体态或动作的比较,达到科学的运动分析与诊断的目的。这些功能的实现都是借助于VC++平台在WidowsXP系统下研究和实现的,系统便携、操作简单,有现场实效性。     

数字环境下《摄影基础》课程教学的改革与实践

随着数码照相机的普及应用和图像处理的数字化,《摄影基础》作为高等师范院校现代教育技术等相关多个专业的必修课程,在教学内容、教学方法和实验技能等方面也产生的很大的变化。文章根据作者多年《摄影基础》课程教学的工作实践,对课程的教学进行了总结及反思,旨在使《摄影基础》课程的教学更加完善。     

虚拟仿真技术在数字电路课程改革实践中的应用研究

文章针对数字电路课程教学的若干问题提出改革的实施意见,结合实践经验提出有效的教学方法。将计算机虚拟仿真技术应用到课堂教学和实验环节中,实现实验教学的高层次目标,有效地提高教学质量。