제지공정 Short Circulation의 동특성 해석

전준석,여영구,김영곤,강홍,Jeon, Jun-Seok,Yeo, Young-Gu,Kim, Young-Gon,Kang, Hong 한국펄프종이공학회 2003 펄프.종이기술 Vol.35 No.4

Analysis of the elements affecting short circulation in highly integrated paper mills and identification of the interactions among these elements are very important tasks to prevent operational perturbations such as web breaks. In the present work a dynamic model for the short circulation is developed to analyze tuning methods for the outputs to follow set points during grade change operations. Steady state operation data are used to investigate dynamic characteristics of responses for input changes.

The effect on the response suppression and reinstatement in reminder trial effects for anticipation time task in motor learning

Jeon Joon-Seok(전준석) 한국체육과학회 2006 한국체육과학회지 Vol.15 No.2

The purposes of the study were to analyze AE in step of acquisition and retention to find out the effect on the response suppression and reinstatement in reminder trial effects for anticipation time task in motor learning. Participants of this study were students who attend university. A problem awaiting solution was anticipation time task and at the very last step, problem's position changing in time was allocated from a continuation of practice. To examine closely, these manipulations resulted in a 2(reminder)×2(position)×17(trial) factorial design for acquisition with the last factor as a repeated measure and a 2(reminder)×2(position) factorial design for retention. Synthetically, suppression response was occurred when an experiment task in practiced in the first position of a blocked practice schedule. Suppression response was not occurred when a primary task in practiced in the last position of a blocked practice schedule. Reinstatement of suppression response for a primary task was occurred when given reminder trial at the end of acquisition. The present findings demonstrate evidence that reminder trial have the advantage of a random practice schedule condition in motor learning(Shea & Titzer,l993; Fairbrother,2000; Jeon, 2003).

골프기능과제를 통한 외적주의 초점 정보제공의 학습효과

전준석(Jeon Joon-Seok) 한국체육과학회 2006 한국체육과학회지 Vol.15 No.4

The study examined whether the learning advantages of an optimal presentation of external focus feedback on golf skill task. Participants without experience in golf were required to practice pitch shots. The practice phase consisted of 80 practice trials. Participants were instructed to focus on the on the club swing. They were randomly assigned to there experimental conclition(100% external focus feedback, and self control external focus feedback). One day after practice, a retention test of 30 trials without instructions was performed. I reached some conclusions as follow : First, appeared that 100% external focus feedback has more effective achievement than self control external focus feedback at practice performance. Second, pitch shot's correctness degree was lower than last practice point of acquisition step usually in retention test who enforce day later but 100% external focus feedback showed that achievement score increases fast Self control external focus feedback group was more effective than 100% external focus feedback group at retention test. Golf skill acquisition took effect that self control external focus feedback has more effective achievement.

다양한 목표설정을 통한 동기유발의 운동학습 효과

전준석(Jeon Joon-Seok) 한국체육과학회 2007 한국체육과학회지 Vol.16 No.3

The purpose this study to offer coaches teaching technique in practical training by analysing the motivating effects of the diverse of goals-setting with valley ball serve skill testing. To make concretely clear this study, chose 14 male and 6 female students, whom divide into four groups : those who were provided with the truth goal-setting ; those with attainable goal-setting ; those with fancied goal-setting ; and control group. As a result of variance analysis among the groups, there was a significant difference in the motivating effects of the diverse of goals-setting with valley ball serve skill testing. The main effect of group was significant, and the main effect of block was significant, whereas there was no Group×Block interaction. At the beginning of the retention test on the following day, the main effect of group was significant, and the main effect of block was significant, whereas there was no Group×Trial interaction. As a result of identification after the training, the record of group who were provided with both attainable goal-setting and fancied goal-setting was most excellent.

푸쉬 풀 포워드 컨버터의 효율 특성 고찰

전준석(June-Seok Jeon),김창선(Chang-Sun Kim),김태식(Tea-Sik Kim),임범선(Bum-Sun Im),우승훈(Seung-Hun Woo) 대한전기학회 2003 대한전기학회 학술대회 논문집 Vol.2003 No.7

기능수준에 따른 여자정구선수들의 정신력과 경쟁불안수준과의 관계

전준석(Jeon Joon-Seok) 한국체육과학회 2003 한국체육과학회지 Vol.12 No.2

The purpose of this study was to compare the mental toughness and sport competitive anxiety between elite and general soft tennis athletes. Three different kinds of instruments including the mental ability test(Lohr, 1982), and the competitive state anxiety inventory tests(Martens, 1982) were used in this research. The independent variables was elite and general groups and the dependent variables were the mental toughness(7 factors), and the competitive state anxiety(3 factors). The main findings from the experiment are following. In connection with the mental toughness of five factors including the self-confidence, visual and imagery control, motivation level, positive energy and attitude control, the elite group was significantly higher than general group. There was only significant difference between elite group and general group in the state self-confidence factor. There were partial relations between mental toughness and sport competitive anxiety.

자기통제 피드백제시에 따른 운동학습 효과

전준석(Jeon Jook-Seok),신승엽(Shin Seung-Yub),김규태(Kim Kyu-Tae) 한국체육과학회 2005 한국체육과학회지 Vol.14 No.2

The present study compared the effectiveness of a self-control feedback condition with that of a yoked and control condition. As each participant in the self-control feedback group was yoked to a partner in the yoked control condition, the frequency and scheduling of the model presentations were, on average, identical for both groups. Additionally, control group was the frequency of the model presentation by 100%. The only difference between the groups was that self-control participants had control over the model presentations, whereas yoked and control participants did not. If the previously found benefits of self-control generalized to observational learning, this could have important implications for practical settings. For example, the effectiveness and efficiency of training could be enhanced, if the learner had control over the model presentations, as compared to prescribed observational practice regimens. The self-control, yoked, and control groups did differ in AE and VE during retention. However, during practice were similar to those seen for AE and VE form archery score, with the yoked and control group showing a retention loss that was not present for the self-control group and self-control participants out-performing yoked, control group performers in retention.

제 2형 당뇨병 환자에서 발생한 미세변화 신증후군 3례

전준석 ( Jun Seok Jeon ),이정은 ( Jung Eun Lee ),이진희 ( Jin Hee Lee ),정병호 ( Byeong Ho Jeong ),조아진 ( A Jin Cho ),권기영 ( Gee Young Kwon ),허우성 ( Woo Seong Huh ),김윤구 ( Yoon Goo Kim ),김대중 ( Dae Joong Kim ),오하영 ( H 대한신장학회 2010 Kidney Research and Clinical Practice Vol.29 No.1

Diabetic nephropathy is a common and serious complication of diabetes characterized by persistent proteinuria, hypertension and a progressive decline of renal function. However, non-diabetic renal disease can be present in diabetic patients and differential diagnosis of treatable disease is important. Minimal change nephrotic syndrome is characterized by normal light microscopic finding and effacement of foot process in electron microscope, but foot process effacement is not specific and it can be present in the glomeruli of the most glomerulopathy including diabetic nephropathy. Therefore, pathologic diagnosis of minimal change nephrotic syndrome combined with diabetic nephropathy is very difficult. However, we could exclude other glomerulopathy and diagnose minimal change nephrotic syndrome by clinical features in three type 2 diabetic patients with diabetic nephropathy and have successfully treated with corticosteroid.

요부운동재활프로그램이 요추 추간판 탈출증 수술환자의 요부신전근력회복에 미치는 영향

김규태(Kim Kyu-Tae),전준석(Jeon Joon-Seok) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.1

The purpose of this research was to indicate how isotonic lumbar extension exercise for pre-operation, post-operation and following 4 week home-based recovery, and rehabilitation program in herina-operated patients. The patients(male: 5, female: 7) were 4 times for pre-operation, post-operation and following 4 week home-based recovery , and rehabilitation program by using Medx lumbar extension strength machine. The lumbar extension strength was measured at seven degrees of lumbar flexion angles, which are 0°, 12°, 24°, 36°, 48°, 60° and 72°. The result indicated as below: There was no significant improvement of lumbar extention strength between pre-operation and post operation, and between following 4 week home-based recovery and rehabilitation exercise for male at all degree, but for female significant increase was appeared at all degrees among level of treats 4 times.

다양한 체육활동참여가 아동들의 신체활동태도에 미치는 영향

오경록(Oh Kyung-Rok),전준석(Jeon Joon-Seok),최준재(Choi Jun-Jae) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.2

The purpose of this study was to investigate what attitude toward physical activityin elementary school students have affirmative and maintain their interest in physical activities and help them lead a cheerful school life. Surveyed group were divided into school sports, movement education, and club sports participation. A questionnaire developed by Schutz, Smoll, Carre and Mosher(1985) on the CATPA(children's attitudes toward physical activity inventory) inventory was used for this study. The following conclusions were drawn : The movement education and club sports show affirmative toward physical activity in attitude for healthy body and fitness development better than that of group with school physical education participation. The movement education and club sports show affirmative toward physical activity in attitude for social development better than that of group with school physical education participation. The movement education, club sports, and school physical education show not toward physical activity in attitude for continual social relation.