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서로 다른 급원의 콜레스테롤 , 단백질 및 섬유소의 섭취가 브로일러의 지질대사에 미치는 영향 1 . 난황의 첨가가 서로 다른 연령의 브로일러의 혈액과 간의 지질수준에 미치는 영향
김기남,한인규 ( K . N . Kim,I . K . Han ) 한국축산학회 1985 한국축산학회지 Vol.27 No.6
The present study was undertaken to determine the effects of egg yolk on blood and liver lipids in young (1 week old) and old (10 weeks old) chickens. The effects of egg yolk supplementation were compared to those of crystalling cholesterol and cholesterol-free diet feeding. Blood samples were obtained at the end of the experiment by decapitation. Serum cholesterol and VLDL+LDL-cholesterol were highest in chicks fed crystalline cholesterol in both aged groups. However, egg yolk elevated serum cholesterol and VLDL+LDL-cholesterol levels slightly in old broilers or had no effect in young birds compared to control group. There were no differences in serum triglycerides and HDL-cholesterol levels among treatment groups in both aged groups. Consequently, the ratio of HDL/total cholesterol was higher in chicks fed egg yolk or control diet than in chicks fed egg yolk or control diet than in chicks fed crystalline cholesterol. Dietary treatment did not affect liver lipids in both aged groups.
사료내 콜레스테롤 첨가가 연령의 증가에 따른 암수 브로일러의 혈청 콜레스테롤 수준 및 지단백 ( 脂蛋白 ) 콜레스테롤 함량에 미치는 영향
김기남(K . N . Kim),임현숙(H . S . Lim),원향례(H . R . Won),한인규(I . K . Han) 한국축산학회 1987 한국축산학회지 Vol.29 No.4
The current study was undertaken to determine the effect of the dietary cholesterol on the serum cholesterol level in male and female broilers with age. Commercially hatched, a day old broiler chicks of Hisex-Hybro strain were used as experimental animals. Both male and female broilers were divided into 2 groups of 6 birds each on the basis of body weights. Each bird was individually housed in wire cages and was given an experimental diet ad lib for 14 weeks. During the first experimental period of 4 weeks, broilers were fed semipurified diets and in all remaining subsequent periods commercial grain diets were given. Weight gain, feed intake, and levels of total cholesterol, HDL-cholesterol and VLDL+LDL-cholesterol in serum were determined. The results obtained are summarized as follows. 1. There were significant differences in total serum cholesterol concentration between cholesterol-fed groups and controls during cholesterol-loading peridos in both sexes. Feeding cholesterol resulted in higher serum cholesterol both in young and old broilers, and in male and female birds. There were no sex differences in the level of total serum cholesterol throughout all the experimental periods both in cholesterol-fed groups and controls. 2. The rate of increase or decrease in total cholesterol concentration by cholesterol loading or unloading was different between young (0-4 wks of age) and old broilers (7-11 wks of age). Cholesterolemic response of old broilers under cholesterol loading were slower than those of young broilers. In addition, the extent of the rise in total serum cholesterol was greater in old broilers than in young broilers. 3. HDL-cholesterol was not affected by dietary cholesterol. Moreover there were no significant differences in HDL-cholesterol between groups of different ages and sexs. However, the level of VLDL+LDL-cholesterol was markedly increased by dietary cholesterol. In conjunction with the increase in serum cholesterol and unchanged level of HDL-cholesterol with age, it appears that the major component of increased serum cholesterol with age is VLDL+LDL-cholesterol.
반사방지 나노구조의 성형성과 광학적 특성에 대한 이형 온도의 영향
여나은,심영보,조상욱,김두인,김기남,장경수,정명영,Yeo, N.E.,Shim, Y.B.,Cho, S.U.,Kim, D.I.,Kim, K.N.,Jang, K.S.,Jeong, M.Y. 한국마이크로전자및패키징학회 2016 마이크로전자 및 패키징학회지 Vol.23 No.2
본에서는 저반사 나노구조 필름의 열 나노임프린트 공정 최적화를 위해 나노구조의 성형성과 광학적 특성에 대한 이형 온도의 영향을 평가하였다. 이형 온도에 따른 광학적 특성을 평가한 결과 $70^{\circ}C$까지는 이형 온도가 증가함에 따라 투과율과 반사율 특성이 향상되는 거동을 보였으나 그 이후에는 오히려 투과율이 감소하고 반사율이 증가하는 경향을 보였다. 이와 같은 이형온도에 따른 거동은 성형성에도 유사하게 관찰되었으며 자유체적 형성과 고분자 유동에 의한 것으로 보인다. 따라서, 이형 온도에 따라 고분자의 유동과 자유체적의 형성에 의한 패턴의 성형성이 결정되며, 이로 인해 광학적 특성에 영향을 줄 수 있음을 확인하였다. In this study, effects of demolding temperature (DT) on the formability and optical properties were evaluated in order to optimize thermal nanoimprint lithography for anti-reflective film. Characterization on optical property showed that optical performance was gradually enhanced as the DT increased up to $70^{\circ}C$ while the transmittance and the reflectance was degraded as the DT increased further to $100^{\circ}C$. In addition, similar behavior was observed from formability analysis. It was contributed to the formation of free volume and viscose flow. Therefore, it was concluded that the formability and optical property are highly influenced by the formation of free volume and viscous flow of polymer depending on the DT.