联机手写笔画识别后处理算法的设计与实现

文中提出了两种联机手写笔画识别后处理的优化方案,第一种是基于回溯策略的后处理算法,通过回溯法修正误识的笔画;第二种称为多候选笔画组合算法。本文在基本识别手写笔画的基础上采用这两种后处理算法优化识别程序,实验结果表明,对笔画识别进行后处理大大提高了系统的识别率。     

The movement of the trunk and breast during front crawl and breaststroke swimming

Breast displacement has been investigated in various activities to inform bra design, with the goal of minimising movement; however, breast motion during swimming has yet to be considered. The aim was to investigate trunk and breast kinematics whilst wearing varying levels of breast support during two swimming strokes. Six larger-breasted females swam front crawl and breaststroke (in a swimming flume), in three breast support conditions while three video cameras recorded the motion of the trunk and right breast. Trunk and relative breast kinematics were calculated. Greater breast displacement occurred mediolaterally in the swimsuit condition (7.8, s = 1.5 cm) during front crawl and superioinferiorly in the bare-breasted condition (3.7, s = 1.6 cm) during breaststroke, with the sports bra significantly reducing breast displacements. During front crawl, the greatest trunk roll occurred in the sports bra condition (43.1, s = 8.3°) and during breaststroke greater trunk extension occurred in the swimsuit condition (55.4, s = 5.0°); however, no differences were found in trunk kinematics between the three breast support conditions. Results suggest that the swimsuit was ineffective as a means of additional support for larger-breasted women during swimming; incorporating design features of sports bras into swimsuits may improve the breast support provided.     

国内、外女子赛艇单人双桨划桨技术比较研究

采用SIMIMotion运动分析系统,对中、外赛艇女子单人双桨项目(W1X)优秀运动员一个完整划桨周期技术进行分析。结果表明:中国赛艇W1X优秀运动员在划桨技术周期的艇速、划距指标上与国外W1X优秀运动员有显著性差异(P<0.05),推拉桨时间、桨角和各关节角度指标没有显著性差异(P>0.05)。中国赛艇W1X运动员的推拉桨时间、划桨身体姿势比较合理,建议在保持推桨动力的基础上,借鉴国外赛艇W1X优秀运动员低桨频高稳速划桨的技术,缩短与世界级赛艇W1X优秀运动员的差距。     

乒乓球新技术名称及动作结构剖析

从乒乓球新技术的原始词意、技术动作结构以及实战中的应用和作用三个方面对新技术进行概念上的界定与分析，为今后深入的理论研究做一点基础性工作。     

我国优秀男子仰泳运动员身体形态和专项素质的初步分析与研究

研究表明,我国仰泳运动员身体形态指标有所提高,但身高、体重指标不够理想;肩关节与踝关节的柔韧性和灵活性明显好于其他泳式的运动员,但臂的拉力和伸膝力差距较大。     

蛙泳陆上练习模拟器的设计与应用

根据蛙泳运动技术的特点和在教学中学生易出现的错误动作，作者设计了一种蛙泳陆上练习模拟器，并在教学实践中进行运用，对改进教学方法，合理运用教学手段，提高教学质量具有很好的实用价值和指导意义，对开发体育市场，促进体育产业化也是一个大胆的尝试。     

两宋山水画艺术成就初探

两宋绘画是中国美术史上的高峰时期,人物、山水、花鸟画确立了中国绘画的审美规范,建构了独特的绘画符号,对后世产生深远的影响.     

3种最新网球双手反拍抽球技术分析与训练研究

当今网球比赛正流行双手反拍的打法,与20年前相比,有更多的人使用了双手反拍抽球技术。这种打法给没有经验和较弱的运动员增添了信心和力量。对当今网坛3种最新双手反拍抽球技术的握拍方法、发力方式、技术特点、适宜人群及现代化训练方法进行了分析,不同的网球选手应根据自身的特点选择适合自己的双手反拍抽球技术。     

对外汉语教学视角下的汉字笔画分类

化解对外汉语教学中＂汉字难＂的问题,应对笔画重新分类。按笔画笔向折转与否,可将笔画＂三分＂为横、竖、撇、捺、点、提六个基本笔画,折、钩、弯三个特殊笔画和多个复合笔画;基本笔画可再＂三分＂为点画、线画和半线画;特殊笔画＂折＂使线画、半线画折转成直角,＂钩＂转成钝角,＂弯＂转成圆弧。占笔画多数的复合笔画都是基本笔画折、钩、弯而成的。     

中英两国乒乓球理论中击球动作构成要素的比较分析

根据运动技能学习理论和乒乓球运动相互制约的规律，首次从理论上比较分析了中英两国乒乓球击球动作的构成要素及其概念与划分方法的异同，对我国乒乓球技术的教学、训练具有一定的参考价值。