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전승준,최진국,이준혁,Jeon, Seung Joon,Choi, Jin-Kook,Lee, Jun Hyuk 한국항공운항학회 2021 한국항공운항학회지 Vol.29 No.3
The importance of human factors has been emphasized for pilots because most of aviation accidents have been caused by the human factors of pilots. Human factors issues such as fatigue affecting flight safety are needed to be educated to student pilots who have less experience in flight training. In order to prevent aviation accidents caused by human factors, the management of stress, fatigue, and obsessive-compulsive disorder which increase psychological harmful factors of student pilots, is essential for aviation safety. The management of fatigue is required as a part of safety management system following the guidance of leading aviation authorities. The purpose of this article was to investigate the factors of fatigue at each stage by classifying it into before, during, and after flight training to manage the fatigue of students pilots. Then, the factors of relatively high fatigue were analyzed by using the AHP process to provide factors related fatigue affecting pilot training.
EPTA 교재 중요성에 대한 고찰 - 교재 만족도 분석 중심으로 -
전승준,김경은,정윤식,Jeon, Seung Joon,Kim, Kyoung Eun,Jung, Yun Sick 한국항공운항학회 2020 한국항공운항학회지 Vol.28 No.4
The existence of appropriate teaching materials in foreign language is very essential especially if it is related to safety. Among them, the importance of textbooks is more emphasized because there is no suitable education or curriculum for EPTA (English proficiency test of aviation). A good textbook not only presents the right direction to study but also provides an efficient way to learn. This research exploded how well textbooks for EPTA are organized and analyzed current pilots' responses whether the textbooks are suitable for preparing EPTA through the questionnaire. The conclusion drawn is that textbooks for EPTA should be designed to encourage current and pre-pilots to learn how to communicate with controllers efficiently and briefly, and also should provide proper guide lines for preparing EPTA.
수소결합을 가진 결정내의 진동의 고압효과 : $NH_4I$
전승준,Jeon Seung-Joon 대한화학회 1992 대한화학회지 Vol.36 No.5
Lippincott의 실험적 퍼텐셜을 사용하여 결정상내의 수소결합을 나타내는 간단한 1차원적 모형을 제시하였다. 이 모형에 의하여 압력의 증가에 따른 내부 대칭 신축진동수의 변화를 $NH_4I$에 대하여 계산하였다. 계산 결과는 실험치와 정성적인 일치를 보였다. 낮은 압력에서는 압력의 증가가 수소결하비의 세기를 증가시켜 N-H 진동을 약화시키고, 높은 압력에서는 이온 내의 원자간의 거리의 감소에 의하여 척력의 증가 때문에 진동수가 증가함을 보인다. A simple one dimensional model was proposed to describe a hydrogen bonding in crystals, which was based on the Lippincott's empirical potential. The model was used to calculate internal stretching vibrational frequencies of $NH_4I$ crystal at high pressures. The calculated results were in agreement with Raman experimental results qualitatively. At relatively lower high pressures, as pressure increases internal stretching vibrational frequencies shift lower due to increase of the hydrogen bonding effect. At higher pressures, the frequencies shift higher due to the repulsive contribution of interatomic potential induced by the reduction of interatomic distance as pressure increases.
전승준 ( Seung-joon Jeon ),곽영순 ( Youngsun Kwak ),고훈영 ( Hun Yeong Koh ),이영식 ( Young Sik Lee ),최성연 ( Sung-youn Choi ) 한국과학교육학회 2017 한국과학교육학회지 Vol.37 No.3
본 연구의 목적은 2050년 미래사회를 살아갈 한국인을 위한 과학소양 범주 및 구성요소 도출에 앞서서, 설문조사를 통해 2050년 미래사회 변화 전망에 따라 요청되는 과학소양의 구성요소를 탐색하고, 2050년 미래학교 과학교육을 통해 다루어야 할 과학소양 주제와 과학소양 구성범주별 중요도 변화 등을 전망하려는 것이다. 본 연구는 보다 큰 프로젝트인 `모든 한국인을 위한 과학(Science for All Koreans) 개발`이라는 연구의 일환으로 수행된 것으로 미래 한국인을 위한 과학소양을 규명하기 위한 기초연구에 해당한다. 연구결과에 따르면 과학소양의 정의에는 기존 과학지식 이외에 과학적 사고방식과 작업 방식 그리고 과학의 응용 등을 포함해야 한다고 응답자들은 강조하였다. 2050년 미래사회 변화 전망에 따라 요청되는 과학소양을 지식과 핵심역량으로 구분하여 제안하고, 2050년 미래 학교 과학소양교육을 위한 교과목 편성, 과학소양 구성범주별로 중요도 추이변화 등을 분석하였다. 연구결과를 토대로 미래 한국인을 위한 과학소양의 범주로 과학의 방법, 과학지식, 과학의 응용 등을 제안하였다. 또한 2050년 미래사회를 살아갈 한국인을 위한 과학소양 범주 및 구성요소도출에 주는 시사점과 한국인을 위한 과학소양 개발의 방향을 제안하였다. The goal of this study is to explore categories and components of science literacy and investigate the trend in the importance of each category of science literacy required for Koreans living in a future society in 2050 through survey analyses with the public. This study, as a preliminarily research, is a part of a larger project called `developing science for all Koreans,` which investigates science literacy for all Koreans. According the survey result, the definition of science literacy should include scientific thinking and working methods, application of science, etc. in addition to existing science knowledge. We also suggested science literacy including knowledge and competencies, as well as organization of science subjects in 2050 future school education, and analyzed trends in the importance of science literacy domains. Based on the results, we suggested the scientific method, science knowledge, and science application as domains of science literacy. Discussed in the conclusion are implications and directions for developing `science for all Koreans` living in a future society in 2050.
미니 임플란트 시스템의 적용에 대한 다기관 후향적 임상연구
김영균(Young-Kyun Kim),여인성(In-Sung Yeo),이양진(Yang-Jin Yi),김운규(Un-Kyu Kim),문경남(Kyung-Nam Moon),전승준(Seung-Joon Jeon),조용석(Yong-Seok Cho),윤필영(Pil-Young Yun) 대한구강악안면외과학회 2010 대한구강악안면외과학회지 Vol.36 No.4
Introduction: Mini-implant system is applicable to areas of narrow space and area requiring temporary loading support. The purpose of this study was to evaluate the clinical outcome of a mini-implant system as well as the application of mini-implant system in the dental clinical field. Materials and Methods: The patients who had been operated from Jan 2007 to Dec 2007 in the four dental facility including Seoul National University Bundang Hospital were enrolled. To evaluate the factors associated with the clinical outcome, the patients were classified according to gender, age, area of surgery, type of implant, diameter and length of the implant, and the purpose of the mini-implant system application. Results: From 147 implants, only three implants failed, one of them was for temporary loading. There were no serious surgical or prosthetic complications in this study. Conclusion: An analysis of the preliminary data revealed a satisfactory clinical outcome. However, more long-term evaluation of narrow ridge type as well as the patient’s satisfaction on the use of a provisional type mini-implant system is needed.