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高溫環境이 反芻家畜의 체온 및 혈장 Cortisol 농도에 미치는 影響
정태영,양영직,이상락,윤희섭,Chung, Tae-Young,Yang, Young-Jik,Lee, Sang-Rak,Yoon, Hee-Sup 한국축산환경학회 1995 축산시설환경학회지 Vol.1 No.1
Temperatures of blood and skin, respiratory rate and plasma cortisol concentration in sheep at a warm (average ambient temperature of $15.3^{\circ}C$) and a hot (average ambient temperature of $27.0^{\circ}C$ environment were measured to investigate the effect of hot environment on the physiological responses in ruminant. Temperatures of core, mean skin and mean body in sheep were tended to increase at day time and to decrease at night time at both warm and hot environment, while 24-hr average for those temperatures were significantly higher at hot environment than at warm environment (P<0.05). The calculated body heat content was higher in sheep at hot environment than at warm environment (P<0.05). Respiratory rate and plasma cortisol concentration had no significant differences between warm and hot environment, suggesting that sheep were not stress by the hot environment in this experiment. It is, therefore, suggested that sheep were well adopted to hot environment by increasing body heat content against heat stress.
Dental Plaque Streptococci가 생산하는 세포외 다당류에 관한 연구
정태영,Chung, Tai-Young 대한치과의사협회 1971 대한치과의사협회지 Vol.9 No.12
This report was concerned with the isolation and identification of bacterial flora in the human dental plaque and the dextransucrase activity of isolated species. The results were obtained as follows: 1. The bacterial flora, isolated from the human dental plaque, was identified as 3 species of resembling streptococci, Streptococcus salivarius strain SD-1, Streptococcus bacilli, Lactobacillus brevis strain SD-3, Lactobacillus acidophilus strain SD-2 and SD-7, resembling Staphylococcus sp, and one species of resembling Leuconostoc mesenteroides strain SD-6. 2. The dextransucrase activites of resembling Streptococcus mitis strain SD-9 and Streptococcus salivarius strain SD-1 were exhibited the highest among the isolated species of human dental plaque.
정태영(Taeyoung Chung),하정수(Jungsoo Ha),김정태(Jungtae Kim),이경수(Kyongsu Yi),이장무(Jangmoo Lee) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper presents vehicle stability control system based on sliding control. The brake control inputs have been directly derived from the sliding control law based on a three degree of freedom plane vehicle model with differential braking. The sliding surface is weighted combination of vehicle side slip angle and the yaw rate error. The simulation has performed using a full nonlinear 3-dimensional vehicle model and the performance of the controller has been compared to that of a direct yaw moment controller.
신경망 기법을 이용한 강섬유 혼입률, 형상비에 따른 인장강도 추정모형 민감도 분석
정태영 ( Chung Tae-young ),박주경 ( Park Ju-kyung ) 한국구조물진단유지관리공학회 2022 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.26 No.2
본 연구에서는 SFRC에 관한 다양한 신경망 모형 및 다양한 알고리즘 등을 적용하여 인장강도 특성에 맞는 최적의 신경망 모형을 개발토록 하였다. 그리고 신경망 모형의 학습자료가 예측결과에 미치는 영향을 분석하여 신경망의 학습자료에 대한 예측 시스템의 민감성을 분석하였다.