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생체에서 초음파 측정기를 이용한 한우 도체형질의 추정에 관한 연구
김형철(H . C . Kim),전광주(G . J . Jeon),나기준(K . J . Na),유영모(Y . M . Yoo),정재경(J . K . Chung) 한국축산학회 1995 한국축산학회지 Vol.37 No.4
The carcass traits in live Hanwoo were estimated using the ultrasonic color scanning scope. A total number of 229 bull and steer records were measured. The data were collected for two years from 1992 to 1993. `Ihe estimates of backfat thickness using ultrasonic measurement from live animals for bulls and steers were 0.5㎝ and 0.91㎝, respectively, and those of slaughter measurement were 0.48㎝ and 0.91㎝, correspondingly. And also, the similar results were found for eye muscle area(EMA). The blue dot percentage indicating the marbling score tended to increase from 18 month of age to 21 month of age. The prediction equation using the linear regression were highly accurate for meat quantity(R²=0.91 to 0.93) but was less accurate for meat quality(R²=0.4).
김창수(C. S. Kim),박성영(S. Y. Park),김형철(H. C. Kim),이영선(Y. S. Lee) 한국소성가공학회 2013 한국소성가공학회 학술대회 논문집 Vol.2013 No.10
Vortex tube is the device that can separate small particles from the compressed gas, as well as compressed gas into hot and cold flow. Energy separation ability of vortex tube has been studied to investigate the possibility of the vortex tube as a substitute for an HVAC system of automobile. Experimental equipment has been made to obtain fundamental design parameters, energy separation characteristics has been analyzed for various supply pressure conditions. As increasing supply pressure, energy separation effect increased. Maximum temperature exists near 0.9 of the cold-out-flow-ratio, and minimum exists near 0.4. Based on the experimental results, the vortex tube for HVAC system of Electric Vehicle was redesigned. Also, detailed design is being processed to meet the air-volume of a commercial HVAC system.
여름철 쾌적 피부온도 유지를 고려한 수면 초기 실내온도 변동에 관한 연구
신효준(H. J. Shin),김민수(M. S. Kim),금종수(J. S. Kum),김동규(D. G. Kim),신병환(B. H. Shin),김형철(H. C. Kim) 한국동력기계공학회 2006 한국동력기계공학회 학술대회 논문집 Vol.- No.-
Existent researches about indoor thermal environment had been focused on to seek human's comfort in daytime. Also researches about thermal comfort during the sleeping time that is important for resting and recharging to modern people had been seldom existed. At present, as global warming phenomenon is being continued, most people are going through inconvenience by sultriness during the sleeping hours when sweltering night in summer. Therefore we need another control method of air conditioner to keep human's thermal comfort. This research recognized about optimal indoor temperature to maintain proper skin temperature and comfort sleep when indoor air is cooled by air conditioner in sweltering summer night. As result in this research, we had found the fact that particular change of air-conditioner temperature helps to maintain agreeable skin temperature during the sleep hours.
논리 프로그램의 병렬 수행을 위한 Abstract Machine
이헌길(H.G.Lee),신성엽(S.Y.Shin),김형철(H.C.Kim),낭종호(J.H.Nang),김승범(S.B.Kim),맹승렬(S.R.Maeng),조정완(J.W.Cho) 한국정보과학회 1987 한국정보과학회 학술발표논문집 Vol.14 No.1
본 논문에서는 논리 언어를 병렬로 수행하기 위한 Parallel Abstract Machine(PAM)을 제시한다. PAM은 프로세스 사이에 메시지 교환에 의해 논리 프로그램을 수행하는 AND/OR 프로세스 모델을 기반으로 하고 있으며, 수행시에 생기는 수행 부담(run time overhead)을 줄이기 위해 자동 컴파일 기법을 사용한다. PAM에서는 논리 언어의 AND 병렬성과 OR 병렬성을 동시에 추구하며, 논리 프로그램을 Degroot의 RAP 코드로 변환하고 이를 다시 PAM의 기계어로 컴파일하여 수행시킨다.