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체육수업의 효율화를 위한 체육학습집단구성의 준거설정 연구
윤남식(Nam Sik Yoon) 대한체육학회 2000 대한스포츠융합학회지 (jcses) Vol.4 No.2
Among various elements of promotion in effective conduct of physical education classes the focus of this writing is given on the classifying students into groups according to their individual learning abilities. The main purpose of this writing is to clarify main factors in learning physical education and their contribution in classes, and to form a criterion for formation of learning groups. Data used in this writing is obtained from studying 592 students` achievements, height, weight and physical fitness. The results of the analysis is as follows: (1) The factor that is most important in physical education class is found to be physical fitness of individual students. Next to physical fitness, in the case of 10 to 12th graders, however, physique of individual students is found to play a significant role in their class achievement. (2) The regression equations for the formation of each group are: 7,8,9th grade boys 14.5H+6.5W+100PF 10,11,12th grade boys 29.4H+29.4W+100PF 7,8,9 grade girls 5H+6W+100PF 10,11,12th grade girls -5.6H+52.8W+100PF (3) Prognosis efficiency for a student`s achievement by the above equations in which three items, i.e., physical fitness, height and weight are reflected is to be around 31~34% in case of boy students, and 13-20%, in the case of girls.
트레드밀 운동시 속도와 경사도에 따른 운동 역학적 변인의 특성 비교
윤남식(Nam Sik Yoon),이경옥(Kyoung Ok Yi),김지연(Jee Youn Kim) 대한체육학회 2001 대한스포츠융합학회지 (jcses) Vol.5 No.1
The purpose of this study is to define the mechanism by comparison analysis of mechanic movement by the inclination and the speed of the treadmill gait(walking and running) and to offer the basic data for the decision of the speed and the inclination to avoid injury. The selected subjects of this study were ten female college students, who had normal foot and no experience of the lower extremity injury. We used treadmill that set with forceplatform and Vicon 370 system for the three dimensional analysis. The treadmill speed was 1.25m/s for walking and 2m/s, 2.5m/s, 3m/s for running. The inclination were level(0%), up 5%, 10%, the speed and the order of the inclination selected random. We analyzed the walking value by the inclination and the speed and the angle of lower extremity, the vertical reaction force during the treadmill gait (walking and running). As follows are the result of the analysis, 1. The variation pattern of the inclination on treadmill has no effects during running(2/ms/, 2.5m/s, 3m/s), but change the movement pattern of lower extremity`s on sagittal plane during walking(1.25m/s). 2. The difference by speed on the angle variation pattern of the lower extremity appear between walking(1.25m/s) and running(2m/s, 2.5m/s, 3m/s), and has effects on movement pattern of lower extremity`s coronal plane and transverse plane. 3. The changing of the inclination to 5%, the DRM(dynamic range of motion) of the pelvic and ankle`s on sagittal plane is increased but the case of the 10% the DRM(dynamic range of motion) of the knee`s on sagittal plane and that of the pelvic`s on transverse plane is increased. 4. The DRM(dynamic range of motion) by the speed in stance phase has no difference each running speed(2m/s, 2.5m/s, 3m/s), but differ with walking(1.25m/s) at pelvic tilt, pelvic rotation, hip rotation, knee flex/extension, knee rotation, foot dorsi/plantarflexion. So the DRM(dynamic range of motion) of most lower extremity in stance phase when it running is wider than walking, but has no difference each speed of running.
QualNet에서의 BER 패턴 기반의 선박 애드혹 통신 시뮬레이션 기법 연구
윤남식 ( Nam-sik Yun ),박윤용 ( Yoon-young Park ),정강희 ( Kang-hee Jung ),장병태 ( Byung Tae Jang ),임동선 ( Dong Sun Lim ),김재명 ( Jae Myoung Kim ) 한국정보처리학회 2012 한국정보처리학회 학술대회논문집 Vol.19 No.1
선박 산업에서의 경쟁력 강화를 위해 IT 융합 기술 기반의 고부가가치 기술 및 서비스에 대한 요구가 증대되고 있다. IT 기반의 선박 탑재 장비의 증가로 인해 이러한 장비의 효율적인 관리 및 제어, 이에 기반을 둔 고급 서비스 개발을 위해서 필수적으로 해상에서의 광대역 무선 통신망 구축이 요구된다. 본 논문에서는 선박 간 무선 통신망 구축 및 시뮬레이션 구조에 대해 살펴보고, 해상 환경 시뮬레이션을 위한 시뮬레이션 모델을 제시한다. 또한 효율적인 해상 통신 환경 시뮬레이션을 위한 QualNet 시뮬레이터에서의 BER(Bit Error Rate) 패턴 기반의 시뮬레이션 구조를 제시한다.