运动拍摄与解析技术的快速反馈研究进展

快速反馈是运动拍摄与解析技术的核心，从萌芽发展到电影拍摄、录像拍摄以至红外拍摄技术，均是围绕着快速反馈而不断创新、发展的。既有清晰图像又不须人工判读图像特征点的自动跟踪技术是运动拍摄与解析技术进一步的研究方向。     

科技编辑反馈方法的哲学问题探析

能否正确运用科技编辑反馈方法取决于人们是否对其有正确的理解和认识。因此，本文着重对科技编辑反馈方法的哲学意义及科技编辑反馈方法认识客体的特点进行了分析，以便从哲学高度提高人们对科技编辑反馈方法的认识。     

利用肌电反馈技术进行心理控制训练研究

本文采用以肌电反馈技术为核心的训练方法,对八名(男5,女3)国家游泳、体操、举重、跳水集训队队员进行了心理控制训练,经统计比较训练前、后自身肌电值,两者差异非常显著。这说明肌电反馈对心理控制有很强的辅助效果,在一定程度上提高了运动员的自我心理控制能力,并有助于建立良好的心理平衡状态,发挥运动最佳竞技操作水平。     

高速无线通信系统中自适应均衡技术研究

首先介绍常见均衡器的结构和自适应算法,然后指出基于RLS自适应算法的判决反馈均衡器可以有较快的收敛速度,同时有较好的均衡效果,并通过Matlab仿真证明。     

一类非线性系统的有限时间镇定问题

讨论了一类非线性系统的有限时间镇定问题.通过利用"加幂积分器"的方法构造出了一个部分状态反馈控制律,解决了这类非线性系统的有限时间镇定问题.     

Query expansion with terms selected using lexical cohesion analysis of documents

We present new methods of query expansion using terms that form lexical cohesive links between the contexts of distinct query terms in documents (i.e., words surrounding the query terms in text). The link-forming terms (link-terms) and short snippets of text surrounding them are evaluated in both interactive and automatic query expansion (QE). We explore the effectiveness of snippets in providing context in interactive query expansion, compare query expansion from snippets vs. whole documents, and query expansion following snippet selection vs. full document relevance judgements. The evaluation, conducted on the HARD track data of TREC 2005, suggests that there are considerable advantages in using link-terms and their surrounding short text snippets in QE compared to terms selected from full-texts of documents.     

服务机器人多通道人机交互感知反馈工作机制及关键技术

With the increasing of the elderly population and the growing health care cost, the role of service robots in aiding the disabled and the elderly is becoming important.Many researchers in the world have paid much attention to healthcare robots and rehabilitation robots.     

多媒体教学对田径课教学的优化作用

本文就多媒体教学对田径课教学的优化作用,阐述了多媒体教学对于激发学生的学习兴趣,示范作用、观摩反馈、纠正错误动作舅培参学生在自学能力、思维能力和解决问题能力等方面的作用及应用中注意的问题。     

在线教学效果评价及质量保障体系建设

2020年疫情背景下教育部停课不停学的方案以多元化在线教学的形式实施.大规模在线教学同时启动对我国在线教学质量保障提出新的挑战,如何保障效果并持续提高在线教学质量成为社会关注的焦点问题.基于在线教学实施效果及质量保障策略的分析,参照《欧洲在线教学质量评价标准框架》,为保障在线教学效果提出以下建议:国家建立在线教学质量标...     

Connecting feedback to self-efficacy: Receiving and providing peer feedback in teacher education

Feedback can play a vital role in fostering teacher self-efficacy. Social comparisons and feedback valence (positive vs. negative feedback) are assumed to have a large impact on self-efficacy. Therefore, how pre-service teachers perceive social comparisons and feedback valence in peer feedback and the extent to which pre-service teachers (bachelor/master students) and teacher trainers incorporate comments that can have an impact on self-efficacy into their peer feedback merit investigation. Two studies were conducted. The first showed that peer feedback consisting of a social comparison and with positive feedback valence resulted in greater willingness to improve and positive affect. The second study revealed that teacher trainers’ feedback was more specific, whereas bachelor students’ feedback contained more social comparisons than did master students’ and teacher trainers’. Future research and practical implications are discussed.