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중년여성에 있어서 장기간의 수영운동이 스트레스 호르몬에 미치는 영향
김이규(Kim I-Kyu),김종인(Kim Jong-In),김주혁(Kim Joo-Hyeok),고기준(Ko Ki-Jun) 한국체육과학회 2000 한국체육과학회지 Vol.9 No.2
The purpose of this study was to investigate the distribution of the body composition, blood components and lymphocytes by long-term swimming exercise. The subjects for this exercise of fifty minutes a day, three times a week for twelve weeks. The conclusions obtained from this study are as follows; 1. The twelve-week swimming exercise increased LBM(p<.01) and %LBM (p<.01) in body composition. 2. The Swimming exercise influenced affirmative hormone(Cortisol, Norepinephrine, Epinephrine) concentration on pre and post maximum exercises.
韓秉基,鄭剛,金二圭 弘益大學校 1987 弘大論叢 Vol.19 No.2
In this study, a Optimum design equation of general corrugated plates(Vee type plate and Trough type plate) according to the inclined-angle(θ) of plates and aspect ratio(m) is derived to attain the Optimum values of those plates under axial compression. The merit function is to minimize the weight of plates, and the failure constraints are assumed that the applied stress not excesses Euler buckling stress,. local buckling stress, and yielding stress. As a consequence, the conclusions are followed as; 1. The Optimum angles θ of Vee type plate and Trough type plate are 45°, 30° (for m=1), respectively. 2. For the same weight of Vee and Trough type plate, the Trough type plate is more optimum than Vee type plate, then the angle(θ) and aspect ratio(m) of its. are θ=40°, m=0.2, respectively.