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이진택,Chin Taik Lee 대한화학회 1974 대한화학회지 Vol.18 No.1
陰陽兩이온交換樹脂膜을 利用한 電氣透析에 의하여 電解質을 濃縮할때 濃縮液의 濃度, 透析量/電氣量 및 濃縮液增加量/ion透析量과 溶液의 濃度, 電流密度와의 關係를 實驗해 보았으며 膜內의 合水率, 이온의 移動度 및 電氣透析의 流速으로 해석됨을 알았다 The relation between the concentration of concentrated solution, the quantity of electromigrated solute/electricity and the increasing volume of concentrated solution/the quantity of electromigrated ion to the concentration of solution and the applied current density in the electrodyalisis using ion exchange membranes are studied. It is found that the experimental results on the above mentioned quantities can be understood by the ionic concentration in the membrane phase, the mobility of electrolytes and the flux of electro-osmosis.
이진택 ( Jin Taek Lee ),김재요 ( Jae Yo Kim ) 한국체육대학교 체육과학연구소 2021 스포츠사이언스 Vol.39 No.2
본 연구는 예비초등교사가 지각하는 육상 전공 수업의 재미촉진 및 저해요인을 탐색하고자 진행하였다. 이러한 연구목적을 달성하기 위해 D교육대학교 예비초등교사 123명을 대상으로 개방형 설문 조사를 진행하였다. 수집된 자료는 연구의 목적에 따라 귀납적 분석법을 실시하였다. 그 결과 다음과 같은 결론을 도출하였다. 예비초등교사가 지각하는 육상 전공 수업의 재미촉진요인은 총 321항의 원자료로 이는 5개 일반영역(수업방식, 수업내용, 수업효과, 교수방법, 기타), 8개 세부영역(야외수업, 대인관계, 학습분위기, 새로운 종목 경험, 기술습득, 수업효과, 교수 방법, 기타)으로 구분되었다. 또한 예비초등교사가 지각하는 육상 전공 수업의 저해요인은 총 213항의 원자료로 이는 6개 일반영역(수업방식, 수업내용, 수업평가, 학생, 교육환경, 기타), 9개 세부영역(수업 분위기, 수업내용, 평가, 기술습득, 부상, 날씨, 수업환경, 시설 및 장비, 기타)으로 구분되었다. This study was conducted to explore the factors that promote and hinder the fun of Track and field Major classes perceived by Preliminary Elementary Teachers. To achieve this research objective, an open questionnaire survey was conducted on 123 pre-primary teachers at D University of Education. The collected data were subjected to inductive analysis according to the purpose of the study. As a result, the factors that promote the fun of the land major class perceived by the Preliminary Elementary Teachers are a total of 321 original data, which are 5 general areas (class method, class content, class effect, teaching method, etc.), 8 sub-areas (outdoor class). Interpersonal relations, learning atmosphere, new event experience, skill acquisition, class effect, teaching method, etc.). In addition, a total of 213 items of obstacles to land major classes perceived by Preliminary Elementary Teachers are the original data of 6 general areas (class method, class content, class evaluation, students, educational environment, etc.), and 9 sub-areas (class atmosphere), Class content, evaluation, skill acquisition, injury, weather, class environment, facilities and equipment, etc.).
8주 동안의 육상 교양수업 참여가 단거리 스타트 동작에 미치는 영향
이진택 ( Jin Taek Lee ) 한국운동역학회 2014 한국운동역학회지 Vol.24 No.3
The purpose of this study was to explore the effect of 8 weeks after school classes of track sports on students`` start motion through kinematic variables. 30 students in D National university of education participated for this study. These students divided into two groups, 17 students for experimental group and 13 students for control group. The two groups participated in general athletic class as common class, and the experimental group participated in after school class additionally. The general class taught track and jump skill for 3 hours a week, and the after school class taught only athletic running skill for 30 minutes a week. Pre and post test assessed to assess students’ kinematic changes. Findings indicated that velocity and step rate were increased, and contact time, step length, displacement of center of mass were decreased in the experimental group. In the control group, early velocity, knee/hip angle velocity were increased, and contact time, step length, displacement of center of mass were decreased. In conclusion, the students who only participated in general class, could not maintain athletic skills obtained from the class. However, students who participated in both general and after school class accomplish athletic start skill. This is because Continuous learning effect helped students keep the skill and did not lose the skill. Thus, in order for students to learn specific sport skills, joining after school class with general class together is recommended.
Stefan Holm의 높이뛰기 발구름 동작에서의 충격력과 상지와 하지 분절의 운동학적 분석
이진택 ( Jin Taek Lee ) 한국운동역학회 2011 한국운동역학회지 Vol.21 No.1
The purpose of this study was to investigate the kinetic factors of Stefan holm`s take-off motion and provide the technical data. Collected data of the subject(height: 181 cm, weight: 71 kg, record: 230 cm) were used for the last two strides and take-off phase. The results were as follows: The vertical impulse force was 2044.8 N which was 2.49 times and the anterior-posterior impulse force was -1306.4N which was 1.88 times of the subject`s weight. The take-off leg angular velocities(ωx, ωy) were switched drastically from clockwise to count clockwise direction between two-step touchdown and take-off. The highest jerk of the take-off foot was 368.97 m/s3 during the two step take-off and the take-off foot made an impact to the ground with 1225.07 m/s3 during the one step touchdown.