羽毛球运动员专项情境中信息加工阶段速度研究   总被引：4，自引：0，他引：4  

王树明  章建成 《中国体育科技》2005,41(5):93-96

选择44名专业羽毛球运动员和12名羽毛球初学者为被试,以羽毛球比赛情境片段和两种刺激信号为素材,对优秀运动员知觉技能中快速反应的内存机制进行了实验性研究。结果表明:1)在羽毛球专项情境中,与初学者相比,优秀运动员并不是在所有的三个信息加工阶段都表现出较快的加工速度;2)专业运动员比初学者具有快速的刺激辨别,这一指标是评价羽毛球运动员与非运动员的有效指标;3)不同水平运动员在反应选择阶段没有显著的加工速度差异;4)与中等和初学者相比,高水平运动员具有快速的应答编程速度,应答编程阶段的加工速度是水平相近的优秀运动员的有效评价指标。  相似文献   

初论举重运动员的重量感   总被引：2，自引：0，他引：2  

刘洪琦  张志芳  顾鸿泉 《中国体育科技》2002,38(5):56-58

重量感是举重运动员在运动过程中的 1种专门化的运动知觉。从训练和比赛实践中积累的大量资料中列举部分实例来说明重量感在训练和比赛中的典型表现形式 ,着重讨论了重量感的定义、形成过程及主要特征。由于目前举重界对重量感形成的机制、原理尚不清楚 ,在一定程度上影响了选材和训练过程 ,对此问题进行深入的研究和开发十分必要  相似文献   

不同负荷下武术运动员部分感受性变化的研究     

朱国生  高凤鸣 《安徽体育科技》2003,24(4):46-47

采用训练现场监测方式，测试武术运动员在不同负荷下反应时、肌肉用力感、操作思维及肘关节动觉准确性4项指标的变化，结果表明：随负荷加大，反应时下降；其余几项指标在次大负荷时有所提高，而在大负荷时又呈现下降趋势，且感受性的变化具有不均衡性的特点。  相似文献   

文学欣赏的境界     

喻莉娟 《六盘水师范高等专科学校学报》2004,16(1):43-46

文学欣赏是一种特殊的精神活动,达到的是一种精神升华的境界。在欣赏过程中,欣赏者注视着的是具体的艺术形象,文学欣赏是对形象艺术的感悟过程,在这个感悟过程中,欣赏者应始终是对文学作品的整体艺术的感受,而不是局部的寻章摘句,如仅仅盯住某个细节、某个动作,就不能感受到整部作品的特征。从某种意义上讲艺术作品创造欣赏者,因此,在进行文学欣赏时,一定要选择最为优秀的作品,——“取法乎上”。  相似文献   

技术时代公共图书馆“场所”价值的社会公众认知研究——基于公共平台网络评论文本分析北大核心CSSCI     

金武刚  钟静涵 《图书馆杂志》2022,(1):17-28

在技术时代,公共图书馆作为实体空间的"场所"价值,是关乎图书馆未来发展的重要内容。从公众认知角度探索图书馆"场所"价值,能够发现影响图书馆事业发展的重要因素。经过全面梳理和系统分析,选择上海图书馆、浦东图书馆和滨海新区图书馆三所代表性公共图书馆在公共平台上的网络评论信息,综合运用Python、Jieba分词、SnowNLP等数据采集与分析工具,从高频词分布、情感分析和时间序列三个维度,对社会公众认知情况进行了文本挖掘。分析结果表明,公共图书馆仍然是重要的公共阅读"场所";公共图书馆"场所"服务颇受欢迎,社会评价极为正面;促进文旅融合发展,是当前社会公众对公共图书馆"场所"价值认知的特征所在。在技术时代,公共图书馆应当高度重视"场所"价值的公众认知新变化,可以将文旅融合作为未来发展阶段的重要内容,助力公共图书馆高质量发展。  相似文献   

Spread or Sacrifice: Dilemma for Lighting Policies     

Agnes Brokerhof  Pieter Kuiper  Steph Scholten 《文物保护研究》2018,63(5):28-34

ABSTRACT

Light sensitive objects will fade on display. Collection managers and curators face the dilemma whether to spread fading over several similar objects or sacrifice one. This paper describes an experiment in which participants were asked how they would want to pass on a collection of seventeenth century hand-coloured maps to coming generations. Results show that while colour changes are hardly visible, both public and professionals do not perceive them as damage and prefer to spread fading. Once fading becomes clearly visible in all maps, the preference shifts to sacrificing one map. The tipping point lies around five just noticeable changes. This information can be used when selecting objects for exhibition. The outcome also implies it would be prudent to assess the degree of fading of much exhibited objects and consider whether and when to choose for a sacrifice strategy.  相似文献   

Lighting the Shroud of Turin for Exhibition in 2015     

P. Iacomussi  M. Radis  F. Valpreda  G. Rossi  P. Di Lazzaro 《文物保护研究》2018,63(5):127-131

ABSTRACT

Lighting a cultural heritage artifact requires balancing visual perception with preventive conservation, by providing the best lighting (in terms of spectral distribution and quantity) to enable the viewer to appreciate details and color, while limiting photo-induced degradation. The paper outlines the methodology applied by a multi-disciplinary team while lighting the Shroud of Turin at its last public exhibition in 2015. The methodology considered the special requirements of the Shroud, including exposure to ultraviolet light, while providing appropriate display conditions that would meet audience expectations. The desired appearance (readability of the body image and color) was defined with the help of Shroud researchers and confirmed by subjective tests, while appropriate light levels for preservation were set in agreement with standard requirements and using knowledge of the degradation of linen in visible and UV light. The installation provided a controlled environment and a managed visitor route to the Shroud, assuring excellent perception of both details and color, with the lowest illuminance level about 15?lx.  相似文献   

公共图书馆转型背景下的噪音问题——基于微博的调查     

李斯 《图书馆论坛》2018,(1):100-106

文章以用户在微博上发表的对公共图书馆噪音的看法为数据来源,使用内容分析和情感分析方法研究用户对噪音的认知,分析噪音的来源。研究发现:用户对公共图书馆的噪音问题表示关注和不满;大城市公共图书馆被用户提及最多;用户认为安静才是公共图书馆的应有之义;在用户认为的噪音来源中,用户因素远高于其他因素,最主要的噪音源是少年儿童吵闹。对策包括:转变用户对公共图书馆严肃安静的刻板印象;依据用户需求合理规划空间;改进馆内管理工作。  相似文献   

On the relationship between acculturation and intercultural understanding: Insight from the Reading the Mind in the Eyes test     

《Int J Intercult Relat》2016

Previous research has repeatedly demonstrated the importance of culture and cultural identification to interpersonal understanding. We aimed to apply the ideas from this domain to mental state reasoning, or theory of mind. We thus investigated the relationship between acculturation and inferring the mental states of other people within and across cultures by measuring Caucasian and East Asian participants’ accuracy in inferring the mental states of own- and other-ethnicity targets using the Reading the Mind in the Eyes test. As expected, Caucasian participants showed a significant ingroup advantage in inferring the mental states of own- versus other-ethnicity targets but no variation according to measures of acculturation. More important, East Asian residents of Canada showed greater accuracy for own- versus other-ethnicity targets—and their accuracy for Caucasian targets increased as a function of (i) the time they had lived in Canada, (ii) their experience interacting with Caucasians, (iii) increased endorsement of mainstream Canadian values, and (iv) decreased endorsement of their heritage culture’s values. These results suggest that cross-cultural understanding may be malleable to acculturation and cultural experience, highlighting the importance of further research on how people from different cultural perspectives come to understand each other and subsequently ameliorate cross-cultural misunderstanding.  相似文献   

对足球移动能力训练的思考          下载免费PDF全文

毛燕平 《河北体育学院学报》2017,31(3):76-79

运用文献资料法、逻辑分析法和经验总结法,对足球运动员移动能力训练进行研究.指出,移动能力是足球技能的重要组成部分,与球员的比赛表现密切相关.在对移动方式特征和分类进行分析梳理的基础上,针对长期被忽视的发展感知能力和移动效果反馈两方面,提出足球移动能力训练的内容和重点,以及不同训练阶段的训练要点.认为,发展移动能力要符合力学原理、结合专项技术训练,最终实现训练能力向比赛能力的转化.  相似文献