对我国优秀男子三级跳远运动员跨步跳起跳三时相运动学参数的研究   总被引：6，自引：0，他引：6  

谢向阳  刘江南  王灿 《北京体育大学学报》2004,27(5):716-719

运用定点高速录像(250帧/ s)的方法,对我高优秀男子三级跳远运动员跨步跳起跳过程中三时相(着地、缓冲、蹬伸)运动学参数进行了定量分析.分析结果表明:跨步跳起跳过程中,着地角、起跳幅度、着地时重心高度、离地时重心高度、离地时两大腿夹角对跨步跳离地时水平速度影响较大,是造成跨步跳阶段水平速度损失大的主要原因.我国优秀男子三级跳远运动员跨步跳起跳过程中,过分屈膝,蹬伸迟、不充分,摆动动作消极,不能有效地提高腾起初速度,提高起跳效果.  相似文献   

Evaluation and Optimization of Matting and Framing Methods and Choice of Materials for the Temporary Display and Transit of Photographs and Works on Paper Using a Design of Experiments Approach     

Ana Martins  Lee Ann Daffner 《文物保护研究》2018,63(5):397-399

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Pictures,patience, and practicalities: lessons learned from using photovoice in applied communication contexts     

Phillip E. Wagner  Laura L. Ellingson 《Journal of Applied Communication Research》2016,44(3):336-342

The unforeseen trials of arts-based research may suppress creative and innovative explorations. Photovoice, a visual method of investigation employing participatory photography, presents a host of apprehensions. Yet, photovoice is both a valid and rich methodology that can greatly expand the reach and scope of applied communication research. In this essay, we – three applied communication researchers – discuss the complexities of photovoice, highlighting areas of consideration that interested researchers should contemplate before utilizing this methodology. Briefly exploring three of our research studies and their varying topics (i.e. long-term cancer survivors, domestic violence organizational advocacy, male body culture), we discuss three broad areas of difficulty in photovoice research: analysis, control, and exposure. Despite the unique obstacles that photovoice presents, we argue that it, along with other forms of arts-based research, are profitable and definitely worth the challenge.  相似文献   

Cindy Sherman: A Play of Selves. A collaborative approach to conservation     

J. Luca Ackerman  Peter Mustardo  Hanako Murata  Tatiana Cole 《文物保护研究》2016,61(3):1-6

In 2013, The Better Image (TBI) was contacted to examine A Play of Selves, a unique work created by artist Cindy Sherman during her graduate studies in 1975. The work is composed of 244 paper doll-like photographs of Sherman that are presented within 72 frames. During initial condition checks, it was noted that a number of individual elements had begun to show signs of chemical staining. Over the course of 2013/2014, a collaborative response was developed with the help of the artist, the artist's printer, the representing gallery, TBI staff and the owner. The main goal was to address the physical and chemical issues present and preserve this work for future exhibition and study. Determining an effective decision- making model based on a hierarchy of values was crucial before undertaking any conservation treatment, as there were several invested parties, each with a different perspective. The focus of this paper is the interplay of our responsibilities as conservators with the concerns of the artist, her gallery, her printer, and the owner to balance aesthetic vs. physical integrity of the artwork, reversibility of treatments, importance of record keeping while developing a balanced response within a world of rapidly disappearing traditional photographic papers.  相似文献   

摄影文学还是文学摄影   总被引：1，自引：1，他引：1  

陈润兰 《株洲师范高等专科学校学报》2002,7(3):40-43,52

当前摄影文学讨论中所谓“摄影”、“文学”诸元素经“审美复合”已产生新质的观点值得商榷。因为摄影文学作品中“摄影”是目的 ,是主体 ,“文学”是工具 ,是附庸。它们根本未能化合 ,仍是两张皮。据此 ,“摄影文学”宜更名“文学摄影”。  相似文献   

The visual rhetoric of the aerial view: From surveillance to resistance     

Eli B. Mangold 《Quarterly Journal of Speech》2019,105(1):25-41

We live in a world increasingly photographed from satellites, planes, and drones. Many scholars have viewed aerial imagery through a dystopian lens, largely due to its use by the state and its legacy of military applications. While problematic uses of aerial images persist, this paper theorizes rhetorical potentialities of aerial imagery. We posit how aerial imagery creates these potentialities through strategies related to questions of visibility, scale, and aesthetics. Using case studies that illuminate these strategies, we demonstrate how they can be used to resist state and corporate interests, constitute new social movements, and invite contemplation of otherwise repellent political subject matter. Ultimately, we argue that with increased technological access and the ability to reconfigure norms of expertise, the aerial view presents both opportunities for civic engagement and counter-hegemonic potential.  相似文献   

基于图片摄影与编辑专题学习网站的开发性学习模式研究   总被引：1，自引：0，他引：1  

王秀玲 《中国现代教育装备》2011,(3):167-169

E-learning与传统学习相比具有实践学习的终身化、空间的网络化、主体的个性化、内容的整合化以及交往的平台化等特点。而专题学习网站正是E-learning学习实践下的产物。本文通过分析图片摄影与编辑课程教学现状,研究利用专题网站开展E-Learning开发性学习模式的初步架构,并进一步提出开发性学习模式在教学中的应用思路,以期引起更多的实践类课程的教改探讨。  相似文献   

论陌生化手法在观念摄影中的应用     

秦苗 《宁波广播电视大学学报》2011,9(4):103-106

陌生化手法是造成文学性的关键因素,但是它不仅对文学作品而且对摄影作品非常重要,特别是观念摄影。陌生化手法是帮助摄影师突破受众的漠视,审美疲劳和麻木的有效途径。本文旨在探究摄影大师是如何在观念摄影中运用陌生化手法使照片变得新颖而具有震撼力．  相似文献   

论王家卫电影的摄影风格   总被引：1，自引：0，他引：1  

罗春蕾 《山西广播电视大学学报》2011,16(1):95-96

王家卫在摄影的处理方面不同于其他大多数的导演,他的作品在摄影上一反常规,大胆地主观尝试了各种表现手法。从形象元素、摄影构图、光线与影调、色彩语言以及运动形态等诸多方面带给观众别样的视觉冲击。  相似文献   

论冰雪摄影     

武建国 《湖北广播电视大学学报》2011,31(5):89-90

在冰天雪地、滴水成冰的严寒深冬里,如何才能得到一幅完美的冰雪摄影佳作,关键是如何正确测光,如何正确曝光,这些都是决定拍摄成败的关键。  相似文献