http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
박동훈(Park.Dong Hoon) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Explanation on calculation of required torque capacity and energy capacity of friction elements in automatic transmission has given. Also, explanation on heat transfer and temperature rise in clutch pack due to the energy absorbed during the shift has given. And introduced the items that need to be considered in design stage for proper cooling.<br/>
박동훈(Dong-Hoon Park),최명진(Myung-Jin Choi) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
An Amplitude Proportional Friction Damper (APFD) is considered for the application to the vehicle driveline<br/> torsional damper. The frictional force is proportional to the amplitude in APFD and the system is non-linear as is<br/> Coulomb damper system. The APFD system has advantages over Coulomb damper system since it can be designed<br/> to work with no stick-slip and its damping characteristics are similar to the viscous damper system. In this study, the<br/> solutions for the response of a base-excited system with anAPFD are developed analytically through the application<br/> of a Fourier series to represent the frictional force of APFD. It is assumed that no stick-slips occur during any portion<br/> of the steady-state oscillation and the transmissibility is compared with Coulomb damper and viscous damper system.
검도선수들이 지각하는 변혁적 리더십과 운동수행 간의 관계에서 팀 응집력의 매개효과 검증
박동훈 ( Park Dong-hun ),양명환 ( Yang Myung-hwan ) 제주대학교 체육진흥센터 2021 체육과학연구 Vol.27 No.-
The purpose of this study is to verity the mediating effect of team cohesion in the relationship between transformational leadership and athletic performance perceived by kumdo players. The subjects of the study were 200 high school and college students who participated in the 49th National Student Kumdo Competition by the Minister of Cultuer and Sports in 2020. They responded to transformative leadership, team cohesion, and athletic performance metrics. The collected data were analyzed using SPSS18.0 and SPSS Macro PROCESS statistical programs. The main results were as follows. First, transformational leadership had a significant positive(+) effect on athletic performance, and a significant positive(+) effect on team cohesion. Second, team cohesion had a significant positive(+) effect on athletic performance. Third, transformational leadership induced a significant positive(+) indirect effect on athletic performance through team cohesion.