비혜항법상수 N에 따른 개루프 궤적 및 Time-to-go 특성

이용인,김을곤 제어로봇시스템학회 1998 제어로봇시스템학회 국내학술대회 논문집 Vol.1998 No.10

초격자의 전자층 두께가 Plasma 분산관계에 미치는 영향

李容寅 全北大學校 1990 論文集 Vol.32 No.-

A hydrodynamic model is used to determine the finite thickness effect of the electron layers on the plasmon dispersion relation of GaAs-Al_xGa_1 - _xAs superlattice. Although the model which includes layer thickness gives only small changes from the zero thickness(two-dimensional) model, they are just enough to remove the discrepancy between the theory based on two-dimensional model and experiment. Assuming that the main damping mechanism for the line width broadening of the transmission spectroscopy is the collision, the result of this work could be applied to find the resisitivity of semiconductor superlattice without probing by Helicon wave propagation method.

고등학교 체조선수의 기능수준에 따른 심리적 요인 비교분석

이용인,이현정 忠南大學校體育科學硏究所 2002 體育科學硏究誌 Vol.20 No.1

This study examined various state of highschool gymnasts' competitive trait anxiety, competitive state anxiety, self confidence and intrinsic motivation by their functional state. To provide basic materials for improvement of competition competence, we survey and study 60 highschool gymnasts and extracted following conclusion. 1) Competitive trait anxiety, the subcategory of competitive anxiety: Superior male gymnasts' state was lower than that of common male gymnasts. In case of female gymnasts, there were no distinctive difference between them. 2) Competitive state anxiety (cognitive, physical), the subcategory of competitive anxiety: Any salient distinctions didn't exist between superior and common in male gymnasts as well as female gymnasts in both cognitive and physical state anxiety. 3) Trait self-confidence, the subcategory of self-confidence: Superior male gymnasts' state was higher than that of common male gymnasts and female gymnasts showed the same results. 4) State self-confidence, the subcategory of self-confidence : Superior male gymnasts' state was higher than that of common male gymnasts and female gymnasts showed the same results. 5) Interest, the subcategory of intrinsic motivation : Superior male gymnasts' state was higher than that of common male gymnasts. In case of female gymnasts, there were no distinctive difference between them. 6) Competence, the subcategory of intrinsic motivation : Superior male gymnasts' state was higher than that of common male gymnasts and female gymnasts showed the same results. 7) Effort, the subcategory of intrinsic motivation : Any salient distinctions didn't exist between superior and common in male gymnasts, but superior female gymnasts has higher effort state than common female gymnasts. 8) Strain, the subcategory of intrinsic motivation : Any salient distinctions didn't exist between superior and common in male gymnasts as well as female gymnasts. 9) Competitive trait anxiety, the subcategory of competitive anxiety : Superior male athletes' state was lower than that of common male gymnasts. In case of female athletes, there were no distinctive difference between them. 10) Competitive state anxiety, the subcategory of competitive anxiety : In case of superior athletes, male athletes' state was lower than female athletes' in cognitive state anxiety and there were no distinctive differences in physical state anxiety. Common athletes showed the same results as superior athletes. 11) Trait self-confidence and state self-confidence, the subcategory of self-confidence : Any salient distinctions didn't exist between superior male athletes and superior female athletes. Common athletes showed the same results as superior athletes. 12) Interest, competence, effort, and strain, the subcategory of intrinsic motivation : Any salient distinctions didn't exist between superior male athletes and superior female athletes Common athletes showed the same results as superior athletes.

體育科 入學生의 體力에 關한 比較硏究 : 충남대학을 중심으로 With emphasis on chungnam university

李勇仁 충남대학교 자연과학연구소 1975 學術硏究誌 Vol.2 No.2

To compare the physical resources of athletic students with that of regular department students and the physical resources of athletic students by sorts of athletics, and to secure data on physical education as ameans of complementing deficient physical fitness factors, physical resources research has been made on 19 1st year athletic students of department of physical education (Gymnastic 5, runner 4. Ball game 8, others 2 (Cycle 1 Archery 1) and 23 regular department students. Objects of measurement are heights, weight, chest, shuttle run (Agility), 50mdash (speed), standing broad jump, sarjunt jump (power), grip strength, sits up (muscle strength), 1000m dash (Cardiovascular endurance), dipping (muscle endurance), and trunk flextion (Flexibility). Results of the measurement stand as follows: 1. The results of the physical resources examination: They show that standing height of regular Department students are 169.4cm on an average while that of special athletic students are 168, 2cm also on an average, and they, thus, demonstrate that the regular Department students are 1, 2cm higher in the standing height and the special athletic students are 1, 95kg weightier in weight and 2, 7cm bigger in chest than the regular Department students. 2. The results of the physical Fitness measurement: (1) The special athletic students are superior in Shuttle run(l,27 seconds), 50m dash (0,29seconds), grip strength (3,8kg), sits-up(0,45 times), dipping (4,2 tines), -and trunk Flextion (2,45cm) each to the regular Department students. (2) The regular Department students are superior in standing broad jump, (0,91cm), sarjunt jump (1,95cm). and 1,000m run, (3,3 seconds) to the special athletic students. (3) The gymnastic students (players) are known to be superior in shuttle run situp, dipping and trunk Flextion on an average to the special athletic students, and inferior in other items to them. (4) The field students (runner students) show a superiority in 50m dash, standing broad jump, sarjunt jump, grip strength and l000m run, and an inferiority in other items to the special students. (5) The ball-game students are superior in the average achievements of shuttle run and grip strength, but inferior in other items to the special students. (6) The other students (cycle and archery) are superior in 50m dash, standing broad jump, sarjunt jump, grip strength, l000m run and dipping each on an average, but inferior in other items to the special athletic students.

平衡性 및 回轉能力이 體操學習에 미치는 影響 : Mat 運動에서의 Handspring과 Front Somersault Handspring and Front Somersault in Mat Work

李勇仁 충남대학교 자연과학연구소 1976 學術硏究誌 Vol.3 No.2

With a view of examining the correlation of balance and rotary ability with handspring and front somersault, a total of 55 students of the Department of Physical Education, Chungnam National University, who had been trained in gymnastics for over a year, were sampled in balance (foot and toe balance and frog stand balance), rotary ability (rolling forth, performing a full twist with a single jump), handspring and front somersault. As a result, it was determined that there is no interrelationship between balance and hand spring, and between balance and front somersault; that rotary ability has a high degree of relation to hand spring and front somersault; and that handspring and front somersault are closely connected with each other.

전북대학의 명예와 신뢰를 실추시킨 원죄는 과연 누구의 몫일까?

이용인 열린전북 2006 열린전북 Vol.2006 No.2

축구선수들의 코치 리더쉽 선호도 분석

이용인,민춘기,김재운 충남대학교 체육과학연구소 2000 體育科學硏究誌 Vol.18 No.1

The purpose of this study was to analyze the preference of leader behavior styles according to the trait of soccer players. The trait of soccer players was characterized by age, career of winning a prize, birth order. The classified five behavior styles were training and instruction behavior, democratic behavior, autocratic behavior, social support behavior and positiv feedback behavior in the multidimensional model introduced by Chelladurai and Saleh(1980). Total of 286 soccer players were answered to the questionnaire. All subjects were registered players at the federation of soccer and attended national tournament more than once. The findings of this study were as follows: 1) In the preference of leader behavior style among the soccer players, training and instruction behavior was the most perceived behavior style. Democratic behavior, Positive feedback behavior, and social support behavior were preferred to be of second, third and fourth respectively. Autocratic behavior was the least preferred leader behavior style. 2) In the difference of leader behavior style according to the age of soccer players, middle school team preferred more than pro team in the training and instruction behavior, democratic behavior, and positive feedback behavior. 3) No significant difference was found according to the career of winning a prize and birth order of soccer players in the preference of leader behavior styles.

운동수행에 대한 자신감이 귀인요인에 미치는 영향

이용인,박응철 충남대학교 체육과학연구소 2000 體育科學硏究誌 Vol.18 No.1

For this study I gave my students a task "Turning forward after putting hands on a mat." The purpose of my research is to find out "effects which the confidence in the task has on their performance result and attribution factors." The summary of my research is the following: 1. Accomplishment level depending on the confidence in motor performance To find out the difference of accomplishment level, the students were divided into three groups on accordance with the test result of confidence. The high level students were 46, the middle level students, 125, and the low level students, 38. The average score of the high level students was 109.65, that of the middle level students, 74.67 and that of the low level students was 38.71. That result shows high correlation between confidence and performance. So a teacher's encouragement for his students to strengthen their confidence will lift up the accomplishment level in motor performance of the students. 2. Accomplishment level depending on success or failure of a performance To find out effects the success or the failure of a performance has on accomplishment level, student; were divided into two groups; a success group and a failure group. The result is that the accomplishment level of the success group is higher than that of the failure group. This means teacher's proper guidance for students' success in performance will bring an elevation of the students' accomplishment level. 3. Attribution factors which has effects on the success group The following is the analysis of attribution factors which has effects on the confidence of the success group: The relative difficulty of a task has little effect on the three groups which have different confidence in the success group of the performance. The students' effort to the task are different between the high level group of confidence and the middle level group of confidence, also between thee high level group of confidence and the low level group of confidence. But there is no difference between the middle level group of confidence and the low level group of confidence. The difference of the students' ability is the following: There is difference between the high Bevel group of confidence and the low level group of confidence, also between the middle level group of confidence and the low level group of confidence. But there is no difference between the high level group of confidence and the middle level group of confidence. Fortune has no effect on all the three groups. 4. Attribution factors which has effects on the confidence of the failure group The relative difficulty of a task has little effect on the three groups which have difference in the success group of the performance. The student's efforts to the task are not different from the three groups. The studens' ability is not different from the three groups. Fortune has on effect on all the three groups. In conclusion, all attribution factors - relative difficulty of a task, effort, ability and fortune - has no effect on the accomplishment in the failure group of the performance. So teachers should try to develop efficient teaching method to encourage students to intensify their motive of their accomplishment.

跳馬 Handspring and Salto Forward Tucked의 動作分析

李勇仁 忠南大學校體育科學硏究所 1984 體育科學硏究誌 Vol.2 No.1

Handspring and salto forward tucked at long horse vault was analysed using 16mm motion picture camera. The motions of 3 collegiate gymnasts was filmed at the film speed of 34 frames per second. The following conclusions could be used to teach the long horse vault. 1. At setting the hands on the long horse vault the center of gravity was 158.4 cm(subject A), 156.4cm (subject B), and 152.3cm (subject C) respectively. 2. At taking the hands off the long horse vault, the power was 39512 watt(subject A), 44605 watt (subject B), and 44231 watt (subject C) respectively. 3. When the subject turns 90℃degrees after the handspring on the long horse vault the height of the subject body from the ground was 103cm (subject A), 108cm(subject B), and 105cm(subject C) respectively. 4. The vortical distance of the subject A, B, C was 245.2cm, 248.2cm, and 248.6cm respectively. 5. The subject B reached that highest height 0.118 seconds earlier than the subject, and 0.059 seconds earlier than the subject C. 6. The pushing motion of the subject A was the best among the subjects. 7. because of distances from the center of gravity to the landing point; the subject B and C could not land to the groud rightly.

우수선수의 절정 수행, 절정 체험, 몰입에 대한 심리적 특성

이용인,윤대현,권인선 한국스포츠리서치 2006 한국 스포츠 리서치 Vol.17 No.4