基于单向流固耦合的不同风速下帆板帆翼空气动力性能仿真

目的：探究不同风速对帆板帆翼结构以及周围流场的影响。方法：以奥运女子级别的Neil Pryde RS：X帆板帆翼为研究对象,考虑空气动力与结构的流固耦合效应,利用ANSYS Workbench进行单向流固耦合分析。结果：Realizable模型适合计算帆翼周围的流场湍流度,在风速为2m/s时帆翼升阻比最大;随着风速的增大,帆翼面发生变形和振动会导致风激振现象、背风面产生明显的涡脱现象,且帆翼表面应力区增大,全帆的应变逐步增加。结论：不同风速下的帆翼迎风面和背风面的压力分布、帆翼整体空气动力有一定差异,运动员比赛中应该根据当时风况调整帆翼参数。     

Researching up and across in physical education and sport pedagogy: methodological lessons learned from an intergenerational narrative inquiry

Of issue in this paper are the ways in which different forms of narrative may be of value in undertaking research in potentially thorny situations. The project that inspired this paper saw 30 Physical Education and Sport Pedagogy (PESP) Early Career Academics (ECAs) from more than 20 universities across Australasia, North America and Europe, provide narrative accounts of their ongoing academic experiences. From these stories, three letters seeking advice and guidance from leaders in the field were constructed. Following further feedback from the ECAs, the 3 letters were sent to 11 professors in the PESP field with a request to respond, also in letter form. The composite letters and the professorial responses were then the subject of a symposium at an international PESP conference. While the larger project engages with questions of being and becoming an academic in the neoliberal university, this paper is primarily concerned with methodological issues, including our steps and missteps with narrative, inquiry and the field. More specifically, the focus is on narrative as both the method and phenomena of study. As such, we consider issues associated with using dialogue as data, the provocation of participants, as well as both the presentation and representation of data and the relative power of the participants. In doing so, we critically engage with issues of anonymity (or lack thereof), the practice of ‘researching up’ and finally reach the conclusion that the careful approach to data generation, treatment and presentation necessitated by this project, should be a more regular feature of all qualitative inquiry.     

环境税的设立及其经济影响

目前环境问题已经成为制约我国经济发展重要因素,而目前的各种解决环境问题的措施又显得乏力,所以在我国设立环境税就越来越必要。本文主要研究分析了我国环境税设立要注意的问题以及将给我国经济带来的影响。     

篮球教学中检查与纠正错误方法探讨

本文主要就篮球教学中检查、纠正错误的动作加以分析、研究。     

辽宁体育产业成长性及其演进研究

辽宁体育产业成长性演进的初始制度禀赋是政体合一的制度安排;历史演进是以政府为核心推动力的制度变迁,路径和目标选择依赖于政府的政治意愿和意志;政府对发展体育事业的资金需求是体育产业成长性的动力之一;演进过程呈现出阶段性和非均衡性的特色。     

对我国优秀年轻女子乒乓球运动员郭跃技术特征的分析

国际乒乓球比赛规则的不断变化对我国乒坛长胜地位造成了巨大的困扰,只有去主动适应规则,寻找规律,勇于创新,才能突破困扰,立于不败之地。文章以郭跃的技战术个案分析为例,总结出她技战术的一些规律和存在的问题,希望为我国的女线上横拍反胶弧圈结合快攻打法的发展提供科学理论和参考依据。     

关于构建中国文献修复学学科体系的设想

文章在简单介绍国内外文献修复研究现状的基础上,阐述了创建文献修复学的意义、文献修复学的概念、研究对象、学科性质及地位、研究方法、研究内容、相关学科、研究任务以及围绕学科发展的几点建议。     

论法案的起草

起草法律草案是立法过程中一个必要的,极为重要的基础性阶段。在我国的立法实践中,法案一般由主管部门负责起草,这有其合理性和必然性,但又具有明显的“行政痕迹”,致使 社会缺乏亲和性,难以真正成为社会的规则,鉴于此,应从树立立法机关之权威,合理配备起草班子,实行起草回顾制度,建立立法协调制度,提供必要的经费保障等方面完善我国的法案起草制度。     

高校体育课准备活动开展健身操教学的实验研究

把大众健身操引入准备活动的实验研究表明：健身操练习法能活跃课堂气氛,培养学生能力,发展其个性,提高身体素质,树立终身体育的思想,是一种可行的准备活动练习法。     

我国女子撑竿跳高技术的运动学分析

采用高速摄影与影片解析的方法,对参加１９９６年全国田径锦标赛的６名优秀女子撑竿跳高运动员的技术进行测试,用握杆高度、人体质心速度变化和转动惯量等指标来揭示人—杆系统的运动学规律及其特征。结果表明,孙彩云的“低髋摆体”技术较先进。