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철도 분기기의 설빙 방지를 위한 유도방식 히팅 장치의 특성 분석 연구
정거철(Geochul Jeong),지우영(Woo-Young Ji),김진출(Jin-Chul Kim),박찬배(Chan-Bae Park),이재범(Jae-Bum Lee),이주(Ju Lee),이형우(Hyung-Woo Lee) 대한전기학회 2020 전기학회논문지 Vol.69 No.10
In this paper, a study was conducted on an induction type heating device to remove snow and ice that may cause obstacles and malfunctions of the railway switch. In the induction heating device, an ohmic loss is the heat source. Ohmic loss and heat transfer change greatly depending on the shape and material of the heating device and condition of the atmosphere. Since the loss must be accurately calculated to conduct the thermal analysis properly, it is necessary to analyze the electromagnetic and thermal characteristics and to interlock of electromagnetic and thermal analysis. Therefore, the electromagnetic and thermal analysis was conducted using finite element method (FEM). By the performance test of the prototype, verification of the simulation was conducted.
간호사가 인식한 이차 피해 경험이 삼차 피해 경험에 미치는 영향과 이차 피해 지지의 다중 매개효과
김은미,김순애,김지인,이주리,나선경,Kim, Eun-Mi,Kim, Sun-Aee,Kim, Ji-In,Lee, Ju-Ry,Na, Sun-Gyoung 한국의료질향상학회 2017 한국의료질향상학회지 Vol.23 No.2
Purpose: Nurse's second victim experiences could influence organizational negative work-related outcome. The purpose of this study was to investigate the casual relationship between nurses' second victim experience and third victim experience and multiple mediation effects of second victim supports. Methods: A cross-sectional, self-report survey (the Second Victim Experience and Support Tool) was conducted with 305 nurses working in a general hospital. Data were collected from October 20 to November 25, 2016 and analyzed using SPSS Win version 23.0. Results: The nurses' perceived second victim experience was $3.24{\pm}0.61$ and the third victim experience was $3.12{\pm}0.92$. Nurses' second victim experience was found to have a direct effect on increasing third victim experience and indirect effect of colleague support as mediator (p<.05). However, institutional support and supervisor support had not a partial and indirect effect on third victim experience. Conclusion:This study is one of the first to connect second victim experience to third victim experience in South Korea. This study broadens the understanding of the negative effects of a second victim experience influence third victim experience. When involvement in patient safety events, the important role of colleague support in limiting nurse's third victim experience have been acknowledged. This study reinforces the efforts health care leaders are making to develop interventional programs to colleague support their staff as they recover from adverse event involvement.