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男子排球运动员原地纵跳的蹬地力量研究 被引量:5
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作者 单信海 戴玉生 《南京体育学院学报(社会科学版)》 1998年第1期41-45,共5页
5名职业男子排球运动员,年龄22.2±3.8岁,在实验室内进行原地纵跳,采用测力台与录像对9人次纵跳进行同步分析.研究结果表明,垂直方向测力曲线上具有一个负峰,两个正向双峰.正向第1峰P_1比正向第2峰P_2已平均小23.8%,但又P_1比P_2与... 5名职业男子排球运动员,年龄22.2±3.8岁,在实验室内进行原地纵跳,采用测力台与录像对9人次纵跳进行同步分析.研究结果表明,垂直方向测力曲线上具有一个负峰,两个正向双峰.正向第1峰P_1比正向第2峰P_2已平均小23.8%,但又P_1比P_2与纵跳高度间具有更高的相关性. 展开更多
关键词 排球 纵跳 登地力量
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Field measurement of wind-induced stress on glass facade of a coastal high-rise building 被引量:3
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作者 LI ZhengNong LUO DieFeng +2 位作者 SHI WenHai LI ZhiQi LIANG XiaoHan 《Science China(Technological Sciences)》 SCIE EI CAS 2011年第10期2587-2596,共10页
The glass facade of high-rise building in coastal areas is vulnerable under typhoon.The research works in the literature on facade's wind-resistance performance,however,have some limitations to apply to this issue... The glass facade of high-rise building in coastal areas is vulnerable under typhoon.The research works in the literature on facade's wind-resistance performance,however,have some limitations to apply to this issue.During typhoon landing,the whole facade will vibrate and deform due to the change of atmosphere,temperature and impacted torrential rain,to result in a quite different strain or stress distribution in the glass facade from those in model test and wind tunnel test.In this paper,the field measurement on glass facade of a coastal high-rise building in Xiamen was performed,the wind pressure on the glass facade was measured and a large number of windinduced stress data were obtained during typhoon landing.The relationship between wind pressure and stress or strain of the glass panel was analyzed and the situation of stress distribution was summarized. 展开更多
关键词 0high-rise building glass facade wind-induced stress field measurement TYPHOON
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