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김현경(H. K. Kim),문대원(D. W. Moon),김영필(Y. P. Kim),이재철(J. C. Lee),강희재(H. J. Kang) 한국진공학회(ASCT) 1997 Applied Science and Convergence Technology Vol.6 No.2
이온-고체 표면 사이의 상호작용에 관한 연구를 수행하기 위하여 중 에너지 이온산란 분광장치를 개발하였고 그 특성 평가를 수행하였다. 제작된 MEIS의 에너지 분해능은 4×10^(-3)으로 측정되었다. MEIS의 표면분석의 응용으로 60 keV H^+을 Ta₂O_5(300 Å)/Si에 적용하여 에너지 손실인자와 깊이 분해능을 얻은 결과는 42eV/Å와 9.7 Å이었다. 또한, Si(100) 표면에 97.5 keV H^+이온을 random 방향으로 입사시켜 이차윈 스펙트럼을 얻었다. A medium energy ion scattering spectroscopy(MEIS) system has been developed and tested. In the MEIS system a toroidal electrostatic energy analyzer(TEA) and a two dimensional position sensitive detector(PSD) were used. The energy resolution of MEIS system was estimated to be less than 4×10^(-3) and the overall angular resolution was less than 0.3°. From the MEIS spectrum of Ta₂O_5(300 Å) on Si analyzed using 60 keV H^+, the energy loss factor[S] and depth resolution were estimated to be 42 eV/Å and 9.7 Å, respectively. Also Si(100) surface was analyzed using the MEIS system. A random MEIS spectrum was obtained from the Si(100) covered with native oxide layers. At the double alignment condition, MEIS spectrum showed a Si surface peak, a oxygen peak and a carbon peak.
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.
김현경(H.K.Kim),한인환(I.H.Han) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.6_2
Reconstruction of automobile collision accidents deals with the analysis of the cause of accidents and collision behavior using available information from vehicle accident circumstances. This paper provides an artificial intelligence technique for reasoning about collision behavior. We describe a qualitative analysis of instantaneous motions in rigid bodies. We develop a symbolic spatial representation to describe the dynamic behavior. We also explore a collision theory to reason about force transmission between two rigid objects.<br/>
여성 척수손상 장애인을 위한 인공지능 스마트 요람 사용성 평가 시나리오 및 지표 개발
김현경(H. K. Kim),장완호(W. H. Jang) 한국재활복지공학회 2022 한국재활복지공학회 학술대회논문집 Vol.2022 No.11
The purpose of this study was to develop usability test scenarios and evaluation indicators for AI smart cradle ‘BebeLucy’ developed for women with spinal cord injuries using wheelchairs. The scenario developed four tasks through the focus group interview contents of the previous study and interviews with developers. For the evaluation indicators, the efficiency, effectiveness, and satisfaction of ISO 9241-11 were used as evaluation areas, and Korean literature was investigated. As a result, Success or failure, number of errors, error contents, execution time, RPE, SUS, QUEST, and satisfaction evaluation sheets were derived. The developed scenarios and indicators were revised and supplemented after consultation by three usability test experts, and finally the final usability test scenarios and indicators were developed. Based on the usability test scenario and indicators derived from this study, it is necessary to study the usability test of ‘BebeLucy’, an AI smart cradle for female wheelchair users in the future.
기화식 가습기에서 가습모듈 형상에 따른 가습효율의 수치해석 연구
김현경(H. K. Kim),엄태인(T. I. Ohm),문승현(S. H. Moon),윤형기(H. K. Yoon),방기영(K. Y. Bang) 대한설비공학회 2014 설비공학 논문집 Vol.26 No.1
Adequate relative humidity is needed in the common living space, for human health, and industrial space, for maintenance and efficiency. Evaporative humidifier systems generally have slow response tendencies of air loads, but relatively low initial investment and maintenance costs. Humidification efficiency in the evaporative humidifier is dependent mostly on the shapes and arrays of humidifying modules. So, we tried to apply the computational fluid dynamics to the evaporative humidifier systems, and studied the humidification efficiency of evaporative humidifiers, through the outlet air conditions..