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전자선 증착장치 및 ITO 박막의 제작과 그 특성에 관한 연구
김수길,최범식,우정주,고년규,황정남,정원모,이철주 연세대학교 자연과학연구소 1982 學術論文集 Vol.9 No.-
태양 전지의 제작시 투명 전극막으로 쓰이는 ITO 박막을 제조하기 위하여 cathode 접지 방식의 전자총을 가진 정전 편향 집속형의 전자선 증착 장치를 제작하였다. 가속전압이 0∼15kV, 필라멘트 전류가 0∼28A, 두 전극판 사이의 간격이 11mm, anode와 deflector 사이의 간격이 30mm인 최적 실험조건하에서 생성된 전자선 spot의 크기는 길이가 20mm 폭이 1mm였으며, 전자선의 출력은 약 400W였다. 이 전자선 증착 장치를 이용하여 1600℃까지의 증발 온도를 가진 도체와 절연체 등을 쉽게 증착시킬 수 있었으며, 만드어진 ITO 박막은 약 5000Å의 두께에서 10^-1∼10^-2Ω·㎝의 비저항과 95%의 광투과율을 갖는다. An electron beam evaporator with a cathode grounded type electron gun was designed and constructed in order to deposit ITO thin films for photovoltaic applications. The optimum condition was observed with electode spacing of 11mm, 30mm between anode and deflector, a cathode inner diameter of 3mm and an anode inner diameter of 5mm. As the accelerating voltage varies from 0 to 15kV and ghe filament current from 0 to 28 A, the minimum electron beam spot has a 20mm length, and 1mm width and the output power ranges from 0 to 400W under the above optimum conditions. We can deposit materials whose evaporation temperature is over 1600℃ using this evaporator. And as a result ITO thin film showed a low resistivity of 10^-1∼10^-2Ω·㎝ and the transmittance of 95%.
The Effect of Milk Protein on the Biological and Rheological Properties of Probiotic Capsules
( Bum Ju Kil ),( Sung Jin Yoon ),( Cheol-heui Yun ),( Chul-sung Huh ) 한국미생물생명공학회(구 한국산업미생물학회) 2020 Journal of microbiology and biotechnology Vol.30 No.12
Probiotics are often infused into functional foods or encapsulated in a supplement form to maintain a healthy balance between the gut microbiota and their host. Because there are milk-based functional foods such as yogurt and cheese on the market, it has been suggested that milk-based probiotics could be incorporated into skim milk proteins in a liquid capsule. Skim milk is mainly composed of casein and whey protein, which create a strong natural barrier and can be used to encapsulate probiotics. In this study, we compared the encapsulated probiotics prepared with milkbased concentrated cell mixtures using commercial probiotics. Probiotic capsules were emulsified with skim milk proteins using vegetable oil to form a double coating layer. The product was heatstable when tested using a rheometer. The survival rate of the milk-based probiotic cells in the lower gastric environment with bile was significantly higher than commercial probiotics. Thus, milkencapsulated probiotics exhibited greater efficacy in the host than other types of probiotics, suggesting that the former could be more viable with a longer shelf life under harsh conditions than other form of probiotics. Our findings suggested that, compared with other types of probiotics, milkbased probiotics may be a better choice for producers and consumers.
A New Six-rowed and Covered Barley Cultivar, "Hyemi" with Lodging Tolerance and High-Yield
Yang Kil Kim,Seong Bum Baek,Jung Gon Kim,Mi Ja Lee,Moon Seok Kang,Mi Jung Kim,Hong Sik Kim,Jae Hwan Seo,Jong Jin Hwang,Sae Jung Suh,Jong Nae Hyun,Si Ju Kim,In Mo RyuJae Chul 한국육종학회 2007 한국육종학회지 Vol.39 No.2
“Hyemi”, a new covered cultivar derived from the crosses between “Suwon 298” and “Milyang 34/Albori//Dongbori” developed at the Honam Agricultural Research Institute (HARI), NICS, RDA in 2006. The origin of “Hyemi” is “Suwon 400” (SB951032-B-B-B-28). The initial cross was made in 1995 and the selected line showed a high yield and good quality characteristics under yield trial test in 2003. “Suwon 400” consistently performed well for three years (2004-2006) from the four locations of regional yield trial (RYT) in Korea and released as “Hyemi”. The characteristics of “Hyemi” were the following: rate Ⅳ growth habit, green leaf and stem, compact spike and with long rough awns. The heading date was April 29 in upland and April 23 in paddy field, which was similar and 2 days earlier than that with check cultivar, “Olbori”. The culm length was 81 cm which was 4 cm shorter than those with check cultivar. It showed spike length of 4.1 cm and 646 spikes per m2, 52 grains per spike, 33.4 g of 1,000-grain weight and 672 g of test weight. It showed similar winter hardiness and higher resistance to barley yellow mosaic virus (BaYMV) than those with check cultivar. It showed higher protein content, whiteness and total phenol content than those of the check cultivar, but lower β-glucan content and pearling rate. The average yield of the pearled grain in the RYT was 3.95 ton ha-1 in upland and 4.38 ton ha-1 in paddy field, which was 13% and 16% higher than that of the check cultivar, respectively. This cultivar would be suitable for the area above the daily minimum mean temperature of -8℃ in January in Korean peninsula.
Seong Bum Baek,Jung Gon Kim,Yang Kil Kim,Jong Jin Hwang,Jae Hwan Seo,Mi Ja Lee,Chul Soo Park,Hong Sik Kim,Choon Woo Lee,Jong Chul Park,Tae Il Park,Ouk Kyu Han,Si Ju KimIn Mo 한국육종학회 2006 한국육종학회지 Vol.38 No.1
Dahyang, a new six-rowed and covered barley cultivar, was developed from the cros betwen Milyang26/NICS, RDA in 2005. Among the crosses made in 1994, a promising line that showed both high yield and lodging resistance in theYield Trial tested at Suwon in
A New Six-rowed and Covered Waxy Barley Cultivar, "Samkwangchal" with Good Quality and High Yield
Yang Kil Kim,Seong Bum Baek,Jong Nae Hyun,Jung Gon Kim,Jong Jin Hwang,Jae Hwan Seo,Mi Ja Lee,Chul Soo Park,Hong Sik Kim,Choon Woo Lee,Ouk Kyu Han,Si Ju Kim,Jae Chul KimKwang 한국육종학회 2006 한국육종학회지 Vol.38 No.1
Samkwangchal, a new covered waxy barley cultivar, was developed from the cros betwen Daebaegbori withearly maturing and large grain size and Suwon 302 with waxy endosperm by the Honam Agricultural Research Institutequality characteristics in the yield tri
A New Six-rowed Barley Cultivar, "Hwanggeumchal" with Waxy Cover and Yellow Aleurone
Yang Kil Kim,Seong Bum Baek,Jung Gon Kim,Mi Ja Lee,Mi Jung Kim,Moon Seok Kang,Hong Sik Kim,Jae Hwan Seo,Jong Jin Hwang,Sae Jung Suh,Jong Nae Hyun,Si Ju Kim,In Mo RyuJae Chul 한국육종학회 2007 한국육종학회지 Vol.39 No.3
“Hwanggeumchal”, a new covered waxy cultivar derived from the cross between “Chalssalbori” and “Milyang 65” with waxy endosperm and early maturing cultivars, respectively was developed at Honam Agricultural Research Institute (HARI), NICS, RDA, 2006. The origin of “Hwanggeumchal” is “Suwon 403” (SB942090-B-B-B-42-1). The initial cross was made in 1994 and the selected line showed a high yield and good quality characteristics under yield trial test in 2003. “Suwon 403” consistently performed well for three years (2004-2006) from the four locations of regional yield trial (RYT) in Korea and released as “Hwanggeumchal”. The characteristics of “Hwanggeumchal” were the following: rate I growth habit, green leaf and stem, compact spike and with long rough awns. The heading date was April 30 in upland and April 28 in paddy field, which was 1 and 4 days later than that with check cultivar, “Seodunchalbori”. The culm length was 81 cm which was 3 cm shorter than those with check cultivar. It showed spike length of 4.5 cm and 633 spikes per m2, 64 grains per spike, 27.6 g of 1,000-grain weight and 632 g of test weight. It showed stronger winter hardiness and higher resistance to barley yellow mosaic virus (BaYMV) than those with check cultivar. It had yellow aleurone and showed higher water absorption, expansion rate and total phenol content than those of check cultivar, but lower protein, β-glucan content and pearling rate. The average yield of the pearled grain in the RYT was 4.04 ton ha-1 in upland and 4.12 ton ha-1 in paddy field, which was 10% higher and 4% lower than that of the check cultivar, respectively. This cultivar would be suitable for the area above the daily minimum mean temperature of -8℃ in January in Korean peninsula.