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박현수(Hyun-Soo Park),최광범(Gwang-Bum Choi),어수영(Soo-Young Uh),정호성(Ho-sung jung),유기선(Ki-son Ryu),임형길(Hyeong-Gil Im),임채열(Chae-Youl Im) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
Electrical facilities for metropolitan rapid transit is a important facilities for supply power to metropolitan rapid transit, and can cause enormous economic loss and social problem if fault occurs. Because of various social accident, interesting and necessity of preventive disaster diagnosis system increased gradually and we became carrying out a research project for a design of condition monitoring system for electrical facilities of metropolitan rapid transit finally. In this paper, system construction and design result of condition monitoring system for mold transformer which accomplished through research project are presented
박현수(Hyun-Soo Park),최광범(Gwang-Bum Choi),어수영(Soo-Young Uh),유기선(Ki-Seon Ryu),임형길(Hyeong-Gil Im),정호성(Ho-Sung jung),박영(Young Park),고성범(Sung Bum Ko) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.5월
Metropolitan rapid transit has been used by one of a main transport service for several decades, but there are no monitoring system for electrical equipment condition which can cause enormous economic loss and social problem if fault occurs. Recently, necessity of condition monitoring system for electrical equipment fault came to the fore, we became carrying out a research project for a design of electrical equipment lifetime estimation system for metropolitan rapid transit. In this paper, basic design result of condition monitoring system and specification of transformer partial discharge detection system are presented, which are part of entire lifetime estimation system. Definition of target apparatus and monitoring method determined by analysis of user requirement from each railway company and, each railway company's opinions and requests were collected sufficiently by surveys and discussion.
조미경 ( Cho Mi-kyoung ),가정은 ( Ga Jeong Eun ),김다인 ( Kim Da In ),김명진 ( Kim Myeong Jin ),김소연 ( Kim So Yeon ),김수지 ( Kim Soo Ji ),김승한 ( Kim Seung Han ),최광범 ( Choi Gwang Bum ) 서울대학교 간호과학연구소 2016 간호학의 지평 Vol.13 No.2
Purpose: This study aimed to identify the factors that influence the cognitive degree of dry eyes in nursing students. Methods: This was a cross-sectional descriptive study. Data was collected using self-administered questionnaires (cognitive degree of dry eyes, Standard Patients Evaluation of Eye Dryness [SPEED] questionnaire, and McMonnies questionnaire) from 233 nursing students of E university. Results: The mean scores for the cognitive degree of dry eyes, SPEED, and McMonnies were 21.43, 8.02, and 6.39, respectively. The cognitive degree of dry eyes was found to have a significantly positive correlation with McMonnies and SPEED scores. Additionally, the factors that influenced the cognitive degree of dry eyes among nursing students were hours of using smart phones, McMonnies score, and the SPEED score. Conclusion: The results of this study indicate that interventions need to developed and applied to reduce and control the cognitive degree of dry eyes among nursing students.