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박시영(Si-Yung Park),오형철(Hyeong-Cheol Oh) 한국정보과학회 1996 한국정보과학회 학술발표논문집 Vol.23 No.2B
곱셈연산과 modulo연산으로 구성된 Lehmer random number generator를 구현하는 효율적인 하드웨어를 설계하였다. 곱셈연산과 modulo연산을 덧셈 연산과 뺄셈 연산으로 줄이고, 이 연산에 내포된 carry의 전파지연을 최소화함으로써 설계를 최적화 하였다. 제작된 random number generator는 다양한 응용에 사용될 수 있도록 31 bit 크기 내에서 원하는 크기의 random number를 발생할 수 있도록 설계하였다. 구현된 하드웨어는 Pentium 120MHz 에서의 소프트웨어 구현에 비하여 34.2 배의 속도향상을 보였고, 이미 발표된 하드웨어 구현에 비하여도 1.6 배의 속도 향상을 보였다.
대학 농구선수들의 체력향상을 위한 순환식 플라이오메트릭 트레이닝의 효과
박시영(Park, Si-Young),노호성(Nho, Ho-Yung),하성(Ha, Sung) 한국체육과학회 2012 한국체육과학회지 Vol.21 No.5
The purpose of this study was to investigate influence of circuit plyometric training for physical fitness and athletic performance in collegiate basketball players. Fourteen male players were randomly assigned to two groups: exercise group(plyometric training group),and control group(normal exercise group). Before and after the 6-week training program, all the players were tested for the physical fitness test(20m shuttle run, sit and reach, reaction time, sargent jump, grip strength) and athletic performance tests(10m sprint, 20m sprint, t-run, illinois agility, compass drill). The exercise and control groups performed training sessions for three days per week, respectively. The results showed that the sit and reach was significantly improved in the exercise group(p<.05). The exercise group showed that reaction time increased from 0.34±0.02sec to 0.30±0.02sec after plyometric training(p<.01). Furthermore exercise group showed that sargent jump and grip strength were improved compared with control group after each training. The results showed that 10m sprint and T-run test were significantly improved in the exercise group after training(p<.05 and p<.01, respectively). Illinois agility test showed significant differences for post compared with pretraining in exercise group(p<.01). In conclusion, the present study indicate that the proper plyometric training may be provided in effective training for athletic performance in basketball players, as an exercise group indicated that exercising ability level was improved by specific training.