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헬리콥터로부터 발사된 로켓의 공력 간섭 현상에 대한 수치적 연구
이범석(B.S. Lee),김유진(E.J. Kim),강경태(K.T. Kang),권오준(O.J. Kwon) 한국전산유체공학회 2011 한국전산유체공학회지 Vol.16 No.1
Numerical simulation of air-launched rockets from a helicopter was conducted to investigate the aerodynamic interference between air-launched rocket and helicopter. For this purpose, a three-dimensional inviscid flow solver has been developed based on unstructured meshes. An overset mesh technique was used to describe the relative motion between rocket and rocket launcher. The flow solver was coupled with six degree-of-freedom equation to predict the trajectory of free-flight rockets. For the validation, calculations were made for the impinging jet with inclined plate. The rotor downwash of helicopter was calculated and applied to simulation of air-launched rocket. It is shown that the rotor downwash has non-negligible effect on the air-launched rocket and its plume development.
헬리콥터로부터 발사된 로켓의 초기 안정성에 대한 수치적 연구
이범석(B. S. Lee),김유진(K. T. Kang),강경태(E. J. Kim),권오준(O. J. Kwon) 한국전산유체공학회 2010 한국전산유체공학회 학술대회논문집 Vol.2010 No.11
Numerical simulation of air-launched rockets from a helicopter was conducted to investigate the initial aerodynamic stability and its plume effect. For this purpose, a three-dimensional inviscid flow solver has been developed based on unstructured meshes and an mesh technique was used to describe the relative motion between missile launcher and launched rockets. The flow solver was coupled with six degree-of-freedom equation to predict the trajectory of free-flight rockets. Simulation of air-launched rockets from a helicopter showed that rotor downwash has non-negligible effect on the initial stability of the rockets and its plume development.
척수손상 환자를 위한 병원기반 사회복귀지원 프로그램의 개발 및 효과
호승희(S. H. Ho),유소연(S. Y. Yu),김예순(Y. S. Kim),방문석(M. S. Bang),이범석(B. S. Lee),김동아(D. A. Kim),김은주(E. J. Kim),김현경(H. K. Kim) 한국재활복지공학회 2015 재활복지공학회논문지 Vol.9 No.2
본 연구는 척수손상 환자를 대상으로 병원기반 사회복귀 지원프로그램을 개발하고, 프로그램 시행 전·후를 비교 분석함으로써 프로그램의 효과성을 평가하고자 하였다. 재활병원에 입원해 있는 25명의 척수손상 환자를 대상으로 2~3개월 동안 일주일에 2번 평균 6.1개의 프로그램을 실시하였다. 프로그램 시행 전, 후 COPM, HADS, AD-R, WHOQOL-BREF를 통해 작업 수행도 및 만족도, 불안과 우울, 장애수용, 삶의 질을 비교하였으며, 퇴원 시 CIQ로 지역사회통합 수준과 퇴원 후의 사회복귀여부를 측정하였다. 자료분석은 기술통계와 대응표본 t검정(paired t-test)을 실시하였다. 연구결과 병원기반 사회복귀 지원프로그램 실시 후 작업 수행도 및 만족도, 장애수용, 삶의 질에 향상을 보였다(p<0.05). 또한 퇴원 후 25명의 척수손상 환자 중에서 10명이 가정, 학업, 직업으로 복귀하였다. 이를 통해 병원기반 사회복귀 지원프로그램이 척수손상 환자들이 퇴원 후 그들이 속한 지역사회로 돌아가는데 효과적임을 알 수 있었다. 척수손상 환자들이 가정과 사회로의 빠른 복귀를 위해서는 사회복귀를 위한 다양한 프로그램 개발과 더불어 체계적인 사회복귀 연계시스템이 이루어져야 할 것으로 사료된다. The purpose of this research attempted to developed the Community Reintegration support Program(H-CRsP) on patients with Spinal Cord Injury(SCI) and identity the effect. To assess the effectiveness of a Hospital based H-CRsP with a comprehensive team approach for treating inpatients with Spinal Cord Injury(SCI), offered by the Korea National Rehabilitation Hospital. Participants with SCI were recruited from the Korean National Rehabilitation Hospital. Twenty-five participants who met inclusion criteria were provided with a H-CRsP. A H-CRsP with modules related to the training of daily living skills, driving, vocations and school support activities, leisure or recreational activities, peer counseling, sexual rehabilitation, and others support activities. The 25 enrolled patients had been treated with average of 6.1 programs 2 times a week for over 2 or 3months. COPM, HADS, WHOQOL-BREF, AD-R were administered before the treatment(pre-test) and also at the time of discharge(post-test) to compare the treatment outcomes in the 25 program participants. Measured level of community integration by CIQ at discharge. The data were analyzed by such statistical methods as frequency and paired t-test analysis. Significant improvements were found on the Occupational Performance and Satisfaction, Acceptance of Disability, Quality of Life score in the COPM, AD-R, WHOQOL-BREF (p<0.05). In addition, 10 of the 25 patients returned to home, work or school. These results demonstrated the effectiveness of the H-CRsP in helping patients with SCI return their communities to which they belong. It considered development of the variety of programs and prepare systematically related system.