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김장환,김정남,채동안 부산대학교 기초과학연구소 1991 부산대학교 기초과학연구소 연구논문집 Vol.11 No.-
우리 스스로 강자성체 Curie온도의 간단한 측정장치를 전류계, 전압계, 구리코일, 니크롬선 등을 사용하여 제작하였다. 만든 장치로 전기밥솥의 온도소자, Gd금속, Ni금속의 Curie온도를 측정하였다. 측정한 결과들은 이미 알려져 있는 값들과 매우 잘 일치하였다. The simple apparatus for the Curie temperature-measurement of ferromagnetic materials was made ourselves with ammeters, volmeters, copper coils and nichrome wires. The Curie temperatures of the temperature sensor (ferrite in the electric rice-pot) and metals Gd, Ni were measured by this home-made apparatus. The measured results are in good areement with the known values.
하지 절단자의 절단부위에 따른 삶의 만족도에 대한 연구
김장환,이택영 대한작업치료학회 2001 대한작업치료학회지 Vol.9 No.1
This study was conducted to investigate the status and the life satisfaction of amputees from July 9, 2001 to August 18, 2001. Questionnaire survey was collected from lower extremity amputees using the services of prosthetic and orthotic centers in five Veterans Hospitals (Seoul, Busan, Gwangju, Daeku, and Daejun), Seoul Tehlin prosthetic and orthotic center, Chunan prosthetic and orthotic center, and Junju Lee Ganga rehabilitation institute. Amputees were grouped as trans-tibial amputees, trans-femoral amputees, and bilateral amputees based on amputation level. Demographic and social characteristics, performance of social role, and factors influencing life satisfaction revealed findings as follows: 1) The number of subjects voluntarily participated in the study was 113 (109 men, 4 women), and the mean age of subjects was 53.65 years (age range=22-74 years). 2) The time of amputation was at their second decade mostly (72.6%), and the most common etiology of amputation was trauma (91.2%). 3) The most common type of amputation was trans-tibial amputation (59.3%). Subjects who were employed was 68.1% before amputation and 47.8% after amputation. Subject had income regardless of being employed or unemployed after amputation. 4) No significant difference was found between the scores of social role and the scores of life satisfaction in three groups(p<0.05). 5) The significant factors on life satisfaction was income status and occupational role among variables(p<0.05).