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HyuJung Huh,Seung Huh,SoHee Lee,JeongHo Chae 대한신경정신의학회 2017 PSYCHIATRY INVESTIGATION Vol.14 No.3
Objective-This study examined the overall mental health consequences of the bereaved parents after the Sewol ferry accident. Methods-Eighty-four bereaved parents participated in the study. Self-report scales assessing the severity of psychiatric symptoms and other related psychosomatic problems were used at 18 months following the accident. Univariate descriptive statistics and regression analyses were performed to report the prevalence, severity, and correlates of psychiatric symptoms. Results-94% of the participants appeared to suffer from complicated grief based on scores on the Inventory of Complicated Grief (ICG). Half of the participants were categorized as having severe depression and 70.2% reported clinically significant post-traumatic symptoms according to scores on the Patient Health Questionnaire-9 (PHQ-9) and PTSD Check List-5 (PCL-5). No significant differences by gender were observed in the severity of psychiatric symptoms. A higher educational level was associated with more severe psychiatric symptoms in fathers. Conclusion-The loss of a child due to a disaster caused by human error may continue to have a substantial impact on parental mental health at 18 months after the event. A longitudinal study following parents’ mental health state would be necessary to investigate the long-term effects of the traumatic experience in the future.
전력망에 연결된 디젤 발전기 세트의 비틀림 진동에 대한 기초 연구
김효정(Hyujung Kim),윤현우(Hyunwoo Yun),로날드 디 바로(Ronald D. Barro),이돈출(Donchool Lee) 한국소음진동공학회 2014 한국소음진동공학회 학술대회논문집 Vol.2014 No.10
A Shipboard power system consists of three or four diesel generator sets connected to a grid. In case of dual fuel diesel generator sets employed LNG ship as a prime mover, large amounts of electricity are required for electric propulsion, auxiliary machinery and accommodation facilities. The electrical connection between generators through a network, torsional vibration can lead power swings. In this paper, the influence on the network by the torsional vibration of diesel generator sets in grid operation were studied. The torsional vibration characteristics were investigated and analyzed through theoretical analysis and the vibration measurement and the results were presented.