http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
스테인레스 308 와이어의 스트레이트 처리에 관한 연구
황문석(moon-seok Hwang) 산업기술교육훈련학회 2007 산업기술연구논문지 (JITR) Vol.12 No.1
This papar, it s aim to contribute to industry by constructing the manufacturing system of fine wire used in the recent bio technology and semi-conductor field being developed. It was widely used in the semi-conductor, medical and electronic fields through the straightness control process. To control the straightness process, we gained the several samples by changing tension force, feeding speed, and temperature by current amplification using the manufactured straightness control system itself, and induced main elements required the wire including the best suited straightness among of samples. We confirmed by comparing the result that proper tension force and temperature control is the essential condition, and verified the validity of direct heating method in the straightness control system.
엄나무 (Kalopanax pictus Nakai) 줄기 추출물이 In vitro 반추위 발효와 메탄저감에 미치는 영향
김재성,황문석,김용채,윤영만,배귀석,김창현,Kim, Jae Seong,Hwang, Moon Seok,Kim, Yong Chae,Yoon, Young-Man,Bae, Gui Sek,Kim, Chang-Hyun 한국축산환경학회 2015 한국축산시설환경학회지 Vol.21 No.3
An experiment was conducted to examine the effects of Kalopanax pictus Nakai (Kalopanax) on in vitro rumen fermentation and methane (CH4) reduction. Kalopanax trunk was extracted with 70% ethanol and 70% methanol. Rumen fluid, alfalfa hay and buffer (control: C) supplemented with 0.3% Kalopanx juice (T1), 0.3% ethanol extract (T2) and 0.3% methanol extract (T3) in the total volume of culture medium were incubated at $38^{\circ}C$ for 24h and 48h. Rumen pH was lower in all Kalopanax treatments during all incubations than that in control (p<0.05). Total VFA and total gas production in T2 and T3 was significantly higher than that in C at 48h incubation (p<0.05). Ammonia-N was decreased in all treatments compared with C during the incubation periods (p<0.05). At 24h incubation, $CH_4$ contents were significantly reduced by both alcohol extracts. It is concluded that supplementing Kalopanax extracts can stimulate ruminal fermentation of rumen microorganisms and inhibit methanogenesis.