如何使用大型数字标清摄像机进行拍摄     

苏东科 《中国现代教育装备》2010,(7):30-32

摄像是电视片制作中的重要组成部分,能否拍摄出好的画面是衡量一部电视片质量高低的关键一步。本文就以SONY DVW-970P大型数字摄像机为例,从该镜头的结构、焦点的聚实、色温的调节、景深的控制、三脚架的使用以及拍摄要领这几个方面做详细的介绍。  相似文献   

基于MSP430F227单片机控制的LED点阵书写显示屏设计     

倪祥明  温锦辉 《黄冈职业技术学院学报》2010,12(1):20-22,28

以TI公司4单片机为主控制器,以光笔为检测工具,以按键和带字库的12864液晶为辅助设备的LED点阵书写显示屏系统,通过按键的设置可进入到系统的相应功能模式,以光笔可检测在LED点阵屏上接触的位置,从而实现点亮、划亮等功能,并将划亮点的位置用带字库的12864液晶屏同步显示。  相似文献   

符号学方法在动画角色研究中的应用     

乔凤天 《新闻界》2010,(2)

本文通过对动画角色的符号传达进行研究,力图挖掘动画角色的表现潜力,以符号学的研究视角拓宽动画角色的审美研究。本文以符号学中的能指与所指的互动关系模式作为理论的构架,将动画角色进行符号上的能指与所指划分,并综合消费社会理论,构建动画角色符号认知的新模式。  相似文献   

两镜知识歌中学     

袁晓东 《科教文汇》2012,(21):114-114

中学物理中的面镜与透镜的反射,折射成像原理及作图规律,既繁又难,编组歌诀在教学中随机表述,能化繁为简,化难为易。  相似文献   

篮球掩护配合教学浅谈   总被引：2，自引：0，他引：2  

王晓东  蔡莉 《湖北体育科技》1998,(4)

篮球掩护配合在现代篮球中起着重要作用,本文针对其教学中存在的薄弱环节,提出了若干掩护配合教学建议．  相似文献   

Collegiate baseball players with more optimal functional movement patterns demonstrate better athletic performance in speed and agility     

Yu-Pin Liang  Yi-Liang Kuo  Hsiang-Chin Hsu  Yen-Ysung Hsia  Ya-Wen Hsu 《Journal of sports sciences》2019,37(5):544-552

Sports injuries are common among baseball players and may result in abnormal movement patterns, increased risks of future injury, and unsatisfactory performance. The Functional Movement Screen (FMS?) has been developed to detect abnormal functional movement patterns and can be used for predicting risks of sports injury. However, whether FMS? scores are associated with athletic performance remains unclear. The goal of this study was to determine the association between functional movements and athletic performance in elite baseball players. Core stability, muscular strength and flexibility of the lower extremities, and FMS?, as well as athletic performance in sprinting, agility, and balance tests were assessed in 52 male collegiate Division I baseball players placed into two groups based on FMS? scores. The high-scoring group demonstrated better athletic performance than the low-scoring group, with a shorter duration of the agility test. No group differences were found in core stability, muscular strength, or muscle flexibility, except for rectus femoris flexibility. Thus, the FMS? score is associated with sprinting and agility performance in elite baseball players. These findings indicate that the FMS? may have a role in predicting athletic performance and thereby help determine the goals of training regimens or return-to-play strategies.  相似文献   

Accelerometer and self-reported measures of sedentary behaviour and associations with adiposity in UK youth     

Robert J. Noonan  Danielle Christian  Lynne M. Boddy  Pedro F. Saint-Maurice  Gregory J. Welk  Paul R. Hibbing 《Journal of sports sciences》2019,37(16):1919-1925

This study used accelerometer and self-report measures of overall sedentary time (ST) and screen time behaviours to examine their respective associations with adiposity among UK youth. Participants (Year groups 5, 8, and 10; n=292, 148 girls) wore the SenseWear Armband Mini accelerometer for eight days and completed the Youth Activity Profile, an online report tool designed to estimate physical activity and ST.Stature, body mass and waist circumference were measured to classify adiposity outcomes (overweight/obese and central obesity). One-way between groups ANOVA and adjusted linear, logistic and multinomial logistic regression analyses were conducted. There was a significant main effect of age on total ST across the whole week (F(2, 289)=41.64, p≤0.001). ST increased monotonically across Year 5 (581.09±107.81 min·dˉ¹), 8 (671.96±112.59 min·dˉ¹) and 10 (725.80±115.20 min·dˉ¹), and all pairwise comparisons were significant at p≤0.001. A steep age-related gradient to mobile phone use was present (p≤0.001). ST was positively associated with adiposity outcomes independent of moderate-to-vigorous intensity physical activity (MVPA; p≤0.001). Engaging in >3 hours of video gaming daily was positively associated with central obesity (OR=2.12, p≤0.05) but not after adjustment for MVPA. Results further demonstrate the importance of reducing overall ST to maintain healthy weight status among UK youth.  相似文献   

新闻隐性广告的存在及辨析     

张信国 《新闻界》2007,(5):159-160

本文对新闻隐性广告的基本类型、特征及存在的风险和负面影响进行了评析.  相似文献   

触摸屏电脑辅助体育实践课教学的实践研究   总被引：6，自引：0，他引：6  

赵培禹  李尚滨 《首都体育学院学报》2005,17(5):111-113

本文运用文献法，调查法，实验法和数理统计法，结合多媒体技术，触控技术和课件制作技术，探讨触摸屏电脑辅助体育教学的实现技术和实践效果。结果表明：利用触摸屏电脑辅助体育实践教学效果优于教学方法，为体育教学提供一个多元化的教学模式。  相似文献   

便秘CAI课件的开发研究     

岳红高 《金陵科技学院学报(社会科学版)》2000,(1)

本文就多媒体计算机技术在肛肠专科专病教学中的应用研究──便秘CAI课件的开发研究,阐述了多媒体CAI课件的设计与实现方法。  相似文献