• Title, Summary, Keyword: FED

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Triode-Type Field Emission Displays with Carbon Nanotube Emitters

  • You, J.H.;Lee, C.G.;Jung, J.E.;Jin, Y.W.;Jo, S.H.;Nam, J.W.;Kim, J.W.;Lee, J.S.;Jang, J.E.;Park, N.S.;Cha, J.C.;Chi, E.J.;Lee, S.J.;Cha, S.N.;Park, Y.J.;Ko, T.Y.;Choi, J.H.;Lee, S.J.;Hwang, S.Y.;Chung, D.S.;Park, S.H.;Kim, J.M.
    • Journal of Information Display
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    • v.2 no.3
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    • pp.48-53
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    • 2001
  • Carbon nanotube emitters, prepared by screen printing, have demonstrated a great potential towards low-cost, largearea field emission displays. Carbon nanotube paste, essential to the screen printing technology, was formulated to exhibit low threshold electric fields as well as an emission uniformity over a large area. Two different types of triode structures, normal gate and undergate, have been investigated, leading us to the optimal structure designing. These carbon nanotube FEDs demonstrated color separation and high brightness over 300 $cd/m^2$ at a video-speed operation of moving images. Our recent developments are discussed in details.

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A Longitudinal Study of Calcium and Phosphorus Intakes of Korean Infants from 1 to 3 Months in Breast-Fed vs Formula-Fed Infants (모유영양아와 인공영양아의 칼슘과 인의 섭취상태에 관한 종단적 연구)

  • 구재옥;최경숙
    • Korean Journal of Community Nutrition
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    • v.5 no.2
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    • pp.273-279
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    • 2000
  • This study was carried out to evaluate the calcium and phosphorus intakes and correlation with growth performance of 25male breast and formula-fed infants from 1 to 3 months postpartum. There were four groups breast-fed(BF) and three formula-fed groups(FFM, FFN and FFP). There was no significant difference in the height and weight of infants according to feeding methods and formula brands. Milk intake and the concentration of calcium and phosphorus from human milk and the formulas were measured. The average calcium content of human milk was 26.6$\pm$4.1mg/dl and 13.5$\pm$2.0mg/dl, respectively. The average calcium intakes of the brest-fed and formula-fed infants were 205.5$\pm$29.3mg/day and the 460.5$\pm$70.6mg/day, respectively the average calcium intake of breast-fed infants was significantly lower than that of formula fed infant. The percent of RDA(41%) of breast-fed infants was lower than that(75.4%) of formula fed infant. The average phosphorus intake of the brest-fed and formula-fed infants were 105.1$\pm$20.1mg/day and 288.3$\pm$37.3mg/day, respectively. The precent of RDA(27%) for brest fed was significantly lower than that(75.4%) of formula fed. The Ca/P ratios were 2.1 in brest fed and 1.6 in formula fed infant. The average calcium and phosphorus intakes of the formula fed infants was higher than that of the brest-fed infants. This data suggests the calcium and phosphorus intakes form human milk sufficiently support the growth of infants. Therefore, the level of calcium and phosphorus recommended dietary allowances for infants should be reduced.

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Design of 5" True Color FED Driving System (5″ FED True Color 구동시스템 설계)

  • Shin, Hong-Jae;Choi, Chang-Woon;Kim, Jin;Choi, Jeong-Og;Kwon, Oh-Kyong
    • Proceedings of the IEEK Conference
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    • pp.65-68
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    • 2000
  • We design a new driving system of 5" true color FED using current controlled PWM method. Further more, we successfully developed a 5" FED panel, which resolution is 320$\times$240(Color). When we design a 5" FED driving circuit, FED tips are modeled as R-C for circuit simulator of FED driving circuit. In Video data processing, parallel R, G, B input signals is processed independently, so duty ratio increase and no noise, high quality performance is achieved in display of 5" FED. The luminance is about 100cd/$m^2$, the anode power consumption Is 2.1W and total power of the driving system is 21.54W

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Fatty Acid Profiles, Meat Quality, and Sensory Palatability of Grain-fed and Grass-fed Beef from Hanwoo, American, and Australian Crossbred Cattle

  • Hwang, Young-Hwa;Joo, Seon-Tea
    • Food Science of Animal Resources
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    • v.37 no.2
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    • pp.153-161
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    • 2017
  • Fatty acid profiles in relation to meat quality traits and sensory palatability of grain-fed and grass-fed beef from Hanwoo, American, and Australian crossbred cattle were examined in this study. There were significant (p<0.001) differences in fat content and fatty acid compositions between grain-fed and grass-fed beef. Grain-fed Hanwoo had significantly (p<0.001) lower saturated fatty acid (SFA) proportion but higher monounsaturated fatty acid (MUFA) proportion compared to grass-fed cattle. The proportion of oleic acid in grain-fed Hanwoo was significantly (p<0.001) higher than that in grass-fed Hanwoo, Australian crossbred, or American crossbred cattle. Grain-fed Hanwoo had significantly (p<0.001) lower percentages of drip loss and cooking loss compared to other cattle. Overall palatability panel scores of grain-fed cattle were significantly (p<0.001) higher than those of grass-fed cattle. Consequently, sensory overall palatability was negatively correlated with proportions of SFA and polyunsaturated fatty acid (PUFA), but positively correlated with the proportion of MUFA. In particular, the proportion of oleic acid was strongly and positively correlated with fat content (r=0.91, p<0.001) and overall palatability (r=0.92, p<0.001). These results implied that high-concentrate grain-fed could increase intramuscular fat (IMF) content and the proportion of oleic acid, thus increasing the sensory palatability of Hanwoo beef.

Carbon-Nanotube Based Field-Emission Displays for Large Area and Color Applications

  • Choi, Won-Bong;Lee, Nae-Sung;Yi, Whi-Kun;Jin, Yong-Wan;Choi, Yong-Soo;Han, In-Taek;Jang, Hyeong-Yong;Kim, Hoonn-Young;Kang, Jung-Ho;Yun, Min-Jae;Park, Sang-Hyeun;Yu, Se-Gi;Jang, Jae-Eun;You, Jang-Hun;Kim, Jong-Min
    • Journal of Information Display
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    • v.1 no.1
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    • pp.59-62
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    • 2000
  • The first 9-inch carbon nanotube based color field emission displays (FEDs) are integrated using a paste squeeze technique. The panel is composed of 576 x 242 lines with implementation of low voltage phosphors. The uniform and moving images are achieved only at $2V/{\mu}m$, This demonstrates a turning point of nanotube for large area and full color applications.

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Effects of Polymannuronate Feeding on Compositions of Serum and Liver Lipids in the High-Cholesterol Fed Rats (Polymannuronate의 급이가 고콜레스테롤 급이 흰쥐의 혈청 및 간 지질 조성에 미치는 영향)

  • 이동수;남택정;최재수;변재형
    • YAKHAK HOEJI
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    • v.46 no.4
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    • pp.283-289
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    • 2002
  • The cholesterol and fatty acid levels in serum and liver were compared in 4-week-old Sprague-Dawley male fed by addition of polymannuronate (M, 5.0%), polyguluronate (G, 5.0%), and polymannuronate and polyguluronate (MG, 2.5% to each) with by addition of cholesterol (1.0%). Feed efficiency by the addition of M, MG, and G was lower than cholesterol fed group (p<0.01). The liver weights were less in M, MG, and G fed groups than in cholesterol fed group (p<0.01). Triglyceride levels in serum and liver were 58.2∼77.4% and 51.5∼65.5% lower in M, G and MG fed groups than cholesterol fed group, respectively. Total-, LDL-, and free-cholesterol levels in serum and liver in M, MG, and G fed group were significantly lower than cholesterol fed group. The cholesterol levels were the most reduced in M fed group. However, HDL- cholesterol level in serum was increased in M, MG, and G fed group (p<0.01). The of polyene levels were 47% higher in serum and 76% in liver in M fed group than in cholesterol fed group. The activities of GOT and GPT were lower in M, MG, and G fed group than in cholesterol fed group (p<0.01). Above the results demonstrate that supplementation of low molecular polymannuronate in diets improve physiologically lipid composition in serum and liver.

Effect of Carbon Tetrachloride on the Changes of Xanthine Oxidase Activity in Rate Previously Fed Low or High Protein Diet (식이성 단백질 함량에 따른 흰쥐에 사염화탄소 투여가 Xanthine Oxidase활성에 미치는 영향)

  • 윤종국;이상일;신중규
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.20 no.6
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    • pp.527-537
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    • 1991
  • To evaluate an effect of liver xanthine oxidase on the induction of liver damage, carbon tetrachloride (CCl4) was intraperitoneally injected twice at 0.1ml/100g body weight to the rate fed a low (LP)or high protein diet(HP) while the control group fed LP or HP received only olive oil. The changing rate of liver xanthine oxidas activity was compared with that of a free radical generating enzyme, liver aniline hydroxylase and a scavenging enzyme, glutathions S-transferase activity between the rate fed a LP and those fed HP, and the two groups treated with CCl4. Concomitantly, the degree of liver damage which could be considered as the paramete for CCl4 metabolism in case of CCl4-intoxicated animal was observed in the present experimental conditions and the effect of allopurinol, xanthine oxidase inhibitor, on the CCl4-toxicity of rate liver was alos demostrated. On the other hand, the comparative effect of actinomycin D on the liver and serum xanthine oxidase of CCl4-treated rats fed HP with that of those fed LP and the kinetics of purifed liver enzyme from the liver of CCl4-treated rats fed HP was also compared with that of those fed LP to clarify the differences of xanthine oxidase activity between two groups. The increasing rate of liver weigth/body wt, serum levels of ALT and the decreasing rate of hepatic ALT activity and protein contents to each control group were higher in CCl4-treated rats fed HP than those fed LP. Under the animal models as indentified by the present data herein, the liver xanthine oxidase activity was higher in CCl4-treated rats fed HP than those fed LP, and the control group fed HP also showed the much higher activity xanthine oxidase than that fed LP, whereas there were no differences in the activity of hepatic aniline hydroxylase and glutathions S-transferase between the two group treated with CCl4. Although the hepatic aniline hydroxylase activity was somewhat higher in the rats fed HP than those fed LP, the increasing rate of liver xanthine oxidase to the rats fed LP was higher in those fed HP than that of liver aniline hydroxylase. The degree of liver damage identified such as liver weight and serum ALT activity was less in the CCl4-treated rats pretreated with allopurinol. These results suggest that even a system at which xanthine oxidase acts as well as the drug metabolizing enzyme may influence the acelatin of CCl4 metabolism. In addition, the purified liver xanthine oxidase from CCl4-treated rats fed HP showed decreased Km value when compared to its control group. The Km value of liver xanthine oxidase of CCl4-treated rats fed LP showed a similar Km value with its control group. Furthermore, the decreasing rate of liver and serum xanthine oxidase acitivity in CCl4-treated rats pretreated with actinomycin D to the CCl4-treated rats was higher in rats fed HP than in those fed LP. These results suggest that the inductino of xanthine oxidase in CCl4-treated rats fed HP may be greater than in those fed LP.

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Comparison of Plasma Taurine Levels in Some of Breast-fed Infants and Formula-fed Infants (일부 모유 영양아와 인공 영양아의 혈중 타우린 함량 비교)

  • Cho Kum-Ho;Kim Eul-Sang
    • Journal of the East Asian Society of Dietary Life
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    • v.15 no.4
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    • pp.397-404
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    • 2005
  • The propose of this study was to investigate taurine intake in formula-fed and breast-fed infants and to estimate the level of taurine of blood and urine in order to determine the requirement of taurine intake in infants. These results will be useful to suggest the guideline of requirement of taurine intake and may contribute toward the proper use of breast milk substitutes. Experimental groups were breast-fed infants (n=10) and formula-fed infants (n=10) of 20 normal delivery infants in general hospital. This study was longitudinal study from birth up to 16weeks (0 week, 4 weeks, 8 weeks, 12 weeks, 16 weeks). The items of test were anthropometry(weight, height, head circumference, chest circumference), intake of taurine, taurine level of blood and urine in breast-fed and formula-fed infants. There were no significant differences between breast-fed and formula-fed infants in weight, height, head and chest circumference. There is a need for future studies of exclusive infants with larger samples to determine which growth pattern should be considered as the norm. Taurine concentration of plasma and urine did not differ between breast-fed and formula-fed infants. Taurine intake recommendations for infants is about 30mg/day from this study. This data will be useful for production of human-like formula milk and suggestion of an index of selection of a consumer in taurine.

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Effects of taurine on plasma and liver lipids, erythrocyte ouabain sensitive Na efflux and platelet aggregation in Sprague Dawley rats

  • Park, In-Sun;Kang, Young-Hee;Kang, Jung-Sook
    • Nutrition Research and Practice
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    • v.1 no.3
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    • pp.200-205
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    • 2007
  • The effects of taurine on plasma and liver cholesterol, erythrocyte ouabain sensitive Na efflux and platelet aggregation were examined in Sprague Dawley rats fed control or 0.5% cholesterol with 0.2% cholate diet. Plasma and liver levels of total cholesterol were increased significantly (p<0.05) in rats fed cholesterol diet compared to the control, and taurine significantly decreased the elevated plasma level of cholesterol in rats fed cholesterol diet (p<0.05). HDL-cholesterol was decreased in groups fed the cholesterol diet regardless of taurine supplementation and the difference between groups with and without cholesterol was significant (p<0.01). Plasma triglyceride was decreased and liver triglyceride was increased both significantly (p<0.05) in rats fed cholesterol compared to the control. Plasma and liver triglyceride in rats fed taurine was decreased significantly compared to the control (p<0.05). Intracellular Na tended to be lower in rats fed cholesterol or taurine and higher in rats fed cholesterol plus taurine compared to the control. Na efflux through Na-K ATPase and the passive leak of Na was somewhat reduced in rats fed cholesterol or taurine and was augmented in rats fed cholesterol plus taurine compared to the control, which showed a similar trend to the intracellular Na. Taurine supplementation caused a suppression of Na efflux in groups fed control diet and restored the suppressed Na efflux in groups fed cholesterol. Platelet aggregation was significantly decreased in the group fed taurine compared to the control (p<0.05) and the group fed cholesterol plus taurine was also a little lower in aggregation than the group fed cholesterol. Microscopic examination showed that taurine prevented fatty liver in rats fed cholesterol diet. Taurine known for stimulating Na-K ATPase in some cell types rather decreased erythrocyte ouabain sensitive Na-K ATPase in the present study. Taurine had hypolipidemic and hypocholesterolemic effects and inhibited platelet aggregation which may be favorable for prevention of cardiovascular diseases.

Effect of Dietary Protein Content on the Toluene Metabolism in Rats (식이성 단백질 함량이 Toluene 대사에 미치는 영향)

  • 윤종국;김경순;전태원
    • Toxicological Research
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    • v.12 no.2
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    • pp.237-241
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    • 1996
  • To study an effect of toluene administration on the toluene metabolism in rats liver previously fed a low (casein 7%, LP) or standard (casein 20%, SP) protein diet, toluene (50% in olive oil) was given at 0.2 ml per 100 g body weights once daily during 4 days to the male rats. The content of hepatic cytochrome P-450 was higher in rats fed SP than those fed LP. The hepatic benzylalcohol dehydrogenase activity was higher both in toluene-treated rats and its control group fed SP than those fed LP. The hepatic benzaldehyde dehydrogenase activity was somewhat higher in rats fed SP than those fed LP. In the case of toluene treatment, the increasing rate of hippuric acid contents to the control group were higher in rats SP than those fed LP. In conclusion, it is likely that the metabolic rate of toluene would be higher in rats fed SP than those fed LP.

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