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김현수(H.S.Kim),김한종(H.J.Kim),허재영(J.Y.Hur),최창식(C.S.Choi),이제필(J.P.Lee),장철호(C.H.Jang),정종태(J.T.Jeong) 전력전자학회 1997 전력전자학술대회 논문집 Vol.1997 No.-
In large power system, design margin makes relatively price higher. So, optimal design through exact analysis of thermal behavior is needed. In this paper, we propose the equivalent load test facility using two inverter & converter system and inductors. Applying actual electrical profiles for motor drive, thermal characteristics of power converter fed AC motor drive are obtained, and the results are compared with simulation results.
최창식,김홍기,조현,이영주 대한혈관외과학회 1987 Vascular Specialist International Vol.3 No.1
The pain relieving effect of lumbar sympathetic ganglionectomy to ischemic pain of lower extremities was evaluated. Of twenty three patients 18 were Buerger's disease and 5 with arteriosclerosis obliterans. We could draw a conclusion as followings: 1) Lumbar sympathetic ganglionectomy (LSG) relieved the ischemic pain more effectively for the patients who did not have impending or frank gangrene. 2) LSG was the most beneficial for the patient who has minor superficial ulcer of toes. In such cases LSG brought not only relief of pain but also prompted healing of ulcers. 3) LSG gave better pain relieving effect to Buergers disease (small vessel disease) than arterioscle- rosis. 4) Over all pain relieving effect of LSG was observed in 52% (12/23). 5) Amputation was final measure to obtain pain relief if LSG fails to do so.