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1.
柳天杨  王新  王家正 《体育学刊》2003,10(2):106-108
运用三维摄影与影片解析技术,对孔令辉正手近台反冲前冲弧圈球技术进行了定量分析与研究,第一次较完整地阐述了横拍反胶快攻结合弧圈选手正手近台反冲前冲弧圈球技术的特点与规律,结果显示,该项技术具有动作幅度较小,瞬间发力集中,回球速度快等特点。  相似文献   
2.
鲁迅的审美取向可以提挈为四维:"尚新"、"主用","崇力"、"弘真"."崇力",即"以力为美",是鲁迅审美化"社会话语"的主旋律,是鲁迅关于"美本质"问题的深刻体认,也是鲁迅创作风格的显著征象.鲁迅"以力为美"的审美取向迎应了中国近现代救亡、启蒙的历史使命的吁求,有久远的感召力和型范意义.  相似文献   
3.
体育产业化驱动力:一个规范解释   总被引:9,自引:3,他引:6  
处于二元经济结构和转轨经济的背景下,城市化是体育产业化的载体.增加休闲时间、提高体育产业长期增长率、改变传统文化习俗或鼓励资本的横向进入等所导致的直接结果是改善资源在体育产业化进程中的配置效率,从而形成体育产业化的驱动力.  相似文献   
4.
1933年7月英、法、德、意四国“谅解与合作公约”的缔结,是希特勒上台后欧洲大国间第一次外交互动的产物。英国出于挽救裁军大会的考虑,对意大利倡议的“四国公约”极力推崇,并在协调法德分歧、促成公约的缔结等方面发挥了主导作用。虽然“四国公约”最终因法德两国政府拒绝批准而成为一纸空文,但英国在“四国公约”问题上的表现,却从一个侧面折射出德国纳粹势力上台初期,英国对外政策的基本走向:即力图通过促成普遍裁军来实现欧洲大国间的和解,从而避免可能的战争风险。  相似文献   
5.
图书馆的权力   总被引:9,自引:0,他引:9  
图书馆具有管理权和处罚权。图书馆管理权、处罚权是图书馆的权力,而不宜表述为是图书馆的“权利”。区分管理、处罚权中的“权”是“权利”还是“权力”可以准确界定图书馆管理、处罚权的概念,可以明确相关理论问题,为图书馆管理权和处罚权的正确行使指明方向。  相似文献   
6.
This study examines mistreatment through the perspectives of employees with different cultural backgrounds and positions in order to understand the ways in which some voices are muted and others are privileged. Mistreatment is interactional, distributive, procedural, or systemic abuse of employees taking place at both interpersonal and institutional levels on the basis of cultural diversity. Narrative analysis of semi-structured interviews with employees of a large research and development organization revealed three types of muted narratives used to respond to mistreatment (muted-but-engaged, angrily disengaged, and resigned) as well as one type of privileged response. The narratives provided evidence of two processes by which voices became muted: repeated silencing over time and silencing through ambiguity of policies.  相似文献   
7.
本文研究了一种硅高频高跨导JFET的设计和制造技术,测量结果表明,所研制的器件性能基本达。到了国际上先进公司同类产品的指标参数。  相似文献   
8.
Efficient air-conditioning systems facilitate climate control in modern museums, libraries, and archives. The climate in Hong Kong is typically hot and humid, so the survival of collections is highly dependent on 24-hour air-conditioning systems to maintain the desired environment in repositories of archives and books, or artefact stores. The continuous operation of such systems in turn relies on a number of factors, such as uninterrupted electricity supply, an active maintenance programme, daily monitoring of their performance and quick response to irregularities as well as backup or alternative systems to support the air-conditioning load in case they are down for servicing. From the risk management point of view, unlike the latter four factors, electricity supply is an external factor that cannot be guaranteed. Fluctuation in the power level that results in stoppage of air-conditioning equipment is not uncommon even in well-developed countries. Long power outages could be catastrophic as they might lead to irreversible damage to collection items as a result of fast, large, changes in temperature and relative humidity (RH) towards the external environment if the air-tightness or hygrothermal stability of the storage are not good enough. Understanding storage environmental stability, especially during electrical power disruptions, is an essential part of the preservation measures and disaster preparedness necessary to protect valuable collections in cultural heritage institutions in the region.  相似文献   
9.
The primary purpose of this article is to provide an in-depth understanding of the manner in which surveillance technologies have become readily appropriated and utilised by elite Rugby Union coaches. It is conceded that positions adopted by populist writings commonly categorise the act of coaching as an educational activity that harnesses holistic intentions. Through reflecting upon semi-structured interviews with players located at an Aviva Premiership Rugby Union Club, we provide insight into an elite sporting institution that more accurately depicts coaching as a technocratic activity. The resultant analysis is critical in its review of surveillance mechanisms embedded in institutional practice, extending to the sports coaching setting, which explicate sinister rather than pastoral motives to enforce a disciplinary power that enhances the quantification of athletic performance. The article concludes by emphasising the impact of such practices upon establishing a sense of trust and the construction of self autonomous to the sporting domain. We argue that the emerging and steadfast acceptance of technology in the elite coaching environment is threatening to circumvent the learning potential of players by merely viewing them as functionaries. In adopting this position, we tentatively suggest that future research seeking to inform the practice of coaching and coach education should continue to pursue this critical dialogue to question whether, and to what extent, an overreliance on technology is becoming perceived as the ‘gold standard’ of professional practice amongst the coaching fraternity.  相似文献   
10.
The present study explored the method of testing muscle mechanical properties through the linear force–velocity (FV) relationships obtained from loaded vertical jumps. Specifically, we hypothesised that the FV relationship parameters depicting the force, power, and velocity of the tested muscles will differ among individuals of different physical fitness. Strength trained, physically active, and sedentary male participants (N = 10 + 10 + 10; age 20–29 years) were tested on maximum countermovement and squat jumps where manipulation of external loads provided a range of F and V data. The observed FV relationships of the tested leg muscles were approximately linear and mainly strong (median correlation coefficients ranged from 0.77 to 0.92; all p < 0.05), independently of either the tested group or the jump type. The maximum power revealed higher values in the strength trained than in the physically active and sedentary participants. This difference originated from the differences in F-intercepts, rather than from the V-intercepts. We conclude that the observed parameters could be sensitive enough to detect the differences among both the individuals of different physical fitness and various jump types. The present findings support using loaded vertical jumps and, possibly, other maximum performance multi-joint movements for the assessment of mechanical properties of active muscles.  相似文献   
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