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중학교 학생선수의 성취목표성향이 훈련태도 및 운동전념에 미치는 영향
김서호 ( Seoho Kim ),김병준 ( Byoung-jun Kim ) 인하대학교 교육연구소 2023 교육문화연구 Vol.29 No.4
본 연구는 중학교 학생선수의 성취목표성향이 훈련태도와 운동전념에 미치는 영향을 규명하고, 훈련태도와 운동전념을 향상시키는 기초자료를 제공하는데 목적이 있다. 본 연구의 목적 달성을 위하여 대한체육회 또는 협회에 등록되어 대회에 참가하며, 운동과 공부를 병행하는 중학교 학생선수 207명을 표본대상으로 설문조사를 실시하고, 설문에 불성실한 답을 한 17명을 제외한 190명으로 연구를 실시하였다. SPSS 26을 이용하여 분석 목적에 따라 탐색적 요인분석 및 신뢰도 분석, 일원분산분석, 상관관계분석, 중다회귀분석을 통해 다음과 같은 결론을 도출하였다. 첫째, 학년별 성취목표성향의 차이는 1학년보다 2학년의 과제성향이 높으며, 선수경력에 따른 성취목표성향의 차이는 유의한 차이가 없는 것으로 나타났다. 둘째, 과제성향이 높아질수록 긍정적인 훈련태도(성취, 흥미/열의)가 높아지며, 자아성향이 높아지면 부정적인 훈련태도(방관)가 높아진다. 셋째, 과제성향이 높아질수록 인지전념과 행위전념이 높아진다. 결론적으로 중학교 학생선수들은 과제성향이 높아질수록 훈련에 참여하는 긍정적인 태도나 운동전념이 향상되는 것을 알 수 있다. 따라서 지도자들은 선수들의 과제성향을 향상시켜준다면 선수들은 보다 긍정적인 태도 및 높은 전념을 보일 것이다. The purpose of this study was to investigate the effects of the middle school student athletes’ achievement goal orientation on training attitudes and sports commitments and to provide basic data to improve training attitudes and sports commitment. To achieve the purpose of this study, a survey was conducted on 207 middle school student athletes who are registered with Korean Sport & Olympic Committee or association, participated in the competition and both study and work out. This study was conducted with 190 players, excluding 17 who responded insincerely to the survey. Using SPSS 26, the following conclusions were drawn through exploratory factor analysis and reliability analysis, t-test, one-way analysis of variance, correlation analysis, and multiple regression analysis according to the purpose of the analysis. First, in analysis for the difference in achievement goal orientation by grade, task orientation is higher in the second grade than in the first grade. Second, as the task orientation increases, positive training attitudes (achievement, interest/enthusiasm) increase, and as ego orientation increases, negative training attitudes (overlook) increase. Third, as the task orientation increases, cognitive commitment and behavior commitment increase. In conclusion, it can be seen that the higher the task orientation of middle school student athletes, the better their positive attitude or sports commitment to participate in training. Therefore, if leaders improve their task orientation, players will show a more positive attitude and high commitment.
최영춘(Youngchoon Choi),박치만(Chiman Park),김정민(Jeongmin Kim),최서호(Seoho Choi),김현수(Hyunsoo Kim) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this paper, a control algorithm on how to determine the torque at each wheel is proposed for vehicle safety of an in-wheel independent drive electric vehicle. This control algorithm is designed by considering both wheel slip control and vehicle dynamic control. In order to investigate the effectiveness of the algorithm, a co-simulator is developed under MATLAB Simulink and CarSim simulation environment. It is found from the simulation results for the slalom test that the control algorithm proposed in this study is able to provide satisfactory driving performance with vehicle stability.
녹내장 치료용 능동형 압력조절밸브(Implant) 모델링 및 설계
배병훈,김낙훈,이연,기홍석,김선호,박기환,Bae, Byunghoon,Kim, Nakhoon,Lee, Yeon,Kee, Hongseok,Kim, Seoho,Park Kyihwan 대한기계학회 2001 大韓機械學會論文集A Vol.25 No.5
Glaucoma is an eye disease which is caused by abnormal high IOP (Intra Ocular Pressure). High IOP is caused by the aqueous humor which is produced consistently but not drained due to malfunction of the trabecular system which has a role of draining the aqueous humor into the venous system. Currently, there are three methods to treat glaucoma-using medicines, surgical operation, and using implant device. The first and second methods are not long acting, so the use of implants is increasing in these days in order to drain out the aqueous humor compulsory. However, though conventional implants have a capability of pressure regulation, they cannot maintain IOPs desired for different patients, and too much aqueous humor are usually drained, to cause hypotony. To solve these problems, it is needed to develop a new implant which is capable of controling the IOP actively and copes with personal difference of patients. An active glaucoma implant consists of the valve actuator, pressure sensor, controller, and power supply. In this paper, firstly, we make an analysis of the operation of a conventional implant using a bond graph and show defects and limitations of the conventional valve analytically. Secondly, we design and analyze a valve actuator considering actuation principles, resistance elements, control methods, and energy sources focused on power saving problem. Finally, using simulations the possibility of the proposed valve actuator is investigated.
Seo, H.O.,Sim, C.W.,Kim, K.D.,Kim, Y.D.,Park, J.H.,Lee, B.C.,Lee, K.H.,Lim, D.C. Pergamon 2012 Radiation physics and chemistry Vol.81 No.3
High-energy electron-beam with energy of 1MeV was used for modifying surface structure of TiO<SUB>2</SUB> thin films on carbon fiber prepared by using atomic layer deposition under atmospheric pressure. TiO<SUB>2</SUB> nanoparticles (∼20nm) on carbon fiber underwent structural modification of the surface upon electron-beam treatment, resulting in enhanced photocatalytic activity. In contrast, a thicker film of TiO<SUB>2</SUB> did not show such changes in surface structure and photocatalytic activity by electron-beam treatment. We demonstrate that electron-beam can be used for modifying surface structure of photocatalysts consisting of nanoparticles for improvement of their activity.