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해외 선진 스키지도자 자격체계 비교 연구: 뉴질랜드, 독일, 일본, 캐나다를 중심으로
서명석(Seo, Myung-Seok),문황운(Moon, Hwang-Woon),김효림(Kim, Hyo-Rim),양성철(Yang, Sung-Chul) 한국체육과학회 2023 한국체육과학회지 Vol.32 No.6
This study seeks to derive implications for establishing the qualification system and strengthening the capabilities of domestic ski instructors. Accordingly, the purpose of the study is to analyze the domestic ski instructor qualification operation system and the ski instructor qualification system cases of advanced countries such as New Zealand, Germany, Japan, and Canada, and to improve the ski instructor qualification operation system and program to suit the domestic situation and explore alternatives. This study selected four countries (New Zealand, Germany, Japan, and Canada) using the case study method. Considering the set case analysis target and unit of analysis, research papers, reports, press releases, offline data related to the ski instructor qualification system, and internet data from the websites of related organizations were collected and used for comparative analysis. Research results: First, in the case of advanced skiing countries overseas, the effectiveness of qualification education is sought by categorizing and grading ski instructors by level and target, and then constructing scientific theories and practical education programs that meet each educational purpose. Second, the higher the level of the ski instructor training course in advanced countries overseas, the more tests are conducted for more than three days. Third, even after obtaining ski instructor qualifications, various competitions and classes are held for ski instructors.
3.3㎸, 15㎸A급 3-레벨 NPC PWM 컨버터의 중성점 전압제어에 관한 연구
안준선(Joonseon Ahn),주형길(Hyeong-Gil Joo),서명석(Myung-Seok Seo),문승일(Seung-Il Moon),김주용(Ju-Yong Kim),송일근(Il-Geun Song) 한국조명·전기설비학회 2011 한국조명·전기설비학회 학술대회논문집 Vol.2011 No.5월
Recently, many researchers has been focused the “Smart Grid” system because the market of replacement of old distribution system has been increasing. The solid-state transformer is one of main component of “Smart Grid” system, it is important to develop the transformer. In this paper, 3.3[㎸] 15[㎸A] solid-state transformer has developed. Three-level diode clamped PWM converter-inverter was used in the transformer, therefore the voltage balancing algorithm between DC link capacitors also applied. We verified the solid-state transformer with computer simulation and experiment, voltage balancing was kept well
홍현표(Hyun-pyo Hong),한문섭(Moon-seob Han),서명석(Myung-seok Seo),신명철(Myong-cheol-Shin),윤용한(Yong-han Yoon),김재철(Jae-chul Kim) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
The neutral section was installed in order to prevent conflict with different phase angle source in electric railway catenary system. The speed of electric train reduced due to coasting operation by notch off when it passed the neutral section. And, the catenary wire was damaged and the accident might be happened because of the arc generation when the electric train passed the neutral section with notch on condition. This project has a goal to develop the automatic changeover system using by noncontactless semiconductor device in neutral section of catenary system so that the train pass as notch-on condition. In this first year, we obtain as following results such as domestic and international systems applications and completion requirements, development and analysis of stability for automatic changeover system, design of static switching device on automatic changeover system in neutral section and drawing up interface design and specifications according to equipment.
스키지도자 교육프로그램 및 평가에 대한 해외 선진사례 비교 분석 연구: 캐나다를 중심으로
문황운(Moon, Hwang-Woon),김효림(Kim, Hyo-Rim),서명석(Seo, Myung-Seok),김제원(Kim, Ze-One) 한국체육과학회 2023 한국체육과학회지 Vol.32 No.6
The purpose This study compared the ski instructor education system of Canada, known as an advanced country in overseas skiing, to strengthen the capabilities and cultivate leadership of domestic ski instructors. Accordingly, the purpose of the study is to derive implications for the curriculum, content, and evaluation of domestic ski instructors. This study analyzed data using a literature analysis method. In order to select cases for study in this study, Canadas ski instructor system was set as an advanced example based on countries that have consistently maintained winning records in various world competitions. Canadas ski instructor curriculum, content, and evaluation were set as a unit of analysis to collect data and conduct content analysis. As a result of the study, there is no pre-certification education program in the domestic ski instructor training program, and the qualification system is implemented through written experiments and practical ability tests. Accordingly, it is believed that if new field-centered ski instructor education programs and certification contents are developed and managed through the Canadian ski instructor qualification system, the ski participation population will increase and the educational capabilities of ski instructors will be improved.
서명석,한경수 원광대학교 치의학연구소 1998 圓光齒醫學 Vol.8 No.1
This study was performed to investigate the reproducibility of eccentric mandibular movements according to preferred chewing side, range of mouth opening, type of lateral guidance and involvement of temporomandibular disorders. 50 patients with temporomandibular disorders and 65 dental students without any signs and symptoms were randomly selected for this study as the patients group and the control group, respectively. For recording and observation of eccentric mandibular movement trajectory, BioEGN^ of Biopak^ system (Bioresearch Inc., USA) was used. Each eccentric movement to anterior, right and left side was performed three times similar to the movement pattern for Pantronic Reproducibility Index. Mandibular path was analyzed by three dimensional positional change and the three paths from one direction were compared with one another. From this, reproducibility index of one-directional lateral movement could be calculated, and total reproducibility index, named BioEGN reproducibility index(BERI), was also computed from three-directional eccentric movement likewise. BioEGN reproducibility index could have four value of score by small or large scale, and by outgoing or incoming movement. The data were analyzed by SAS/stat program and the results obtained were as follows : 1. Right side chewing subjects showed more consistent pattern in reproducibility index in comparison between patients group and control group than left chewing subjects have done, and reproducibility was low in patients group. However, there was no difference between the two groups in bilateral chewing subjects. 2. There were no difference in reproducibility index between preferred chewing side and contralateral side in unilateral chewing subjects whereas reproducibility index in left side on outgoing movement were higher than in right side in bilateral chewing subjects. 3. Difference in total reproducibility index(BERI) between canine guidance group and non-canine guidance group were not observed though difference in reproducibility index on lateral movement were observed in part. 4. There were no difference in reproducibility index between affected side and contralateral side in unilaterally affected patients, and between unilaterally affected patients and bilaterally affected patients in patients group. 5. Highly significant positive correlationship were shown among the four types of total reproducibility index(BERI) in total subjects, and range of clinical mouth opening was negatively correlated with BERI on outgoing movements and with index on outgoing movement to preferred side.
두개하악장애환자에서 악관절강폭과 측모두부형태와의 관계에 관한 연구
서명석,한경수,신민 원광대학교 치의학연구소 1993 圓光齒醫學 Vol.3 No.1
This study was performed for the purpose of investigating the relation between width of temporomandibular joint space and craniofacial morphologry in patients with CMDs. The subjects utillized here were aged from 16 to 63 years old and 19 male and 46 female. For the study. each patient was taken radiographs by Transcranial and Lateral Cephalographic projection and the films were traced with routine method. The measured items were anterior, superior, posterior joint space and relative condvlar position to the deepest part of glenoid fossa in Transcranial film and items related vertical and/or horizontal growth in Cephalogram. The data were processed with SPSS/PC+ package for statistical analysis. The obtained results were as follows 1. Anterior joint space in affected side were wider than that of unaffected side, but for superior and posterior joint space, the value of unaffected side were more than those of affected side. 2. Superior or posterior joint space of affected side were significantly correlated with items related vertical growth, such as ramus height, Jarabak ratio, FMA. From this, the following could be proposed. the wider the joint space of superior or posterior aspect of affected side was, the more the patient showed growth pattern of counter clockwise. 3. Superior or posterior joint space of affected side were significantly correlated with items related horizontal growth, such as SNPo, NAPo, APDI and ANB. From this the following could be proposed, the wider the joint space of superior or posterior aspect of affected side was, the more the patient showed anterior displacement of mandible. 4. It would be proposed that the diagnostic value of superior and posterior joint space of affected side in transcranial radiograph was excellent.
역도선수의 경기전 경쟁상태불안 요인이 경기력에 미치는 영향
정용각,서명석 정보과학연구소부산외국어대학교 2002 情報科學論集 Vol.4 No.-
The purpose of this study is to investigate on influence of competitive state anxiety on the game effect of weight lifter. Especially this study shows how confidence, cognitive state anxiety and physical state anxiety have psychological influence on the game effect of weight lifter. The 88 subjects, ranging from 13 to 23 years of age, were to a weight lifter of middle school, high school, university, and an adult who attend all-Korea spring tournament chosen for the analysis. Eighty eight completed questionnaires were analyzed, applying Cornbach's Alpha, Factor Analysis, Multiple Regression, and MANOVA. An IBM personal computer with SPSS was used for the calculations. A significant level of p < .05 was used for all the statistical test. The results of this study are as follows: First, an competitive state anxiety of weight lifter before game has showed a meaningful difference under the present level. Superior athletes showed higher perceived confidence and physical state anxiety factors than inferior athletes, while inferior athletes showed cognitive state anxiety than superior athletes. Second, physical state anxiety factors have strong influence on the game effect of weight lifter, and perceived state confidence factors were significantly related to the game effect of weight lifter.