• Title/Summary/Keyword: Hybrid Coat

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Detection of Lily Symptomless Virus Using RT-PCR Technique (RT-PCR 기법을 이용한 Lily Symptomless Virus의 검정)

  • Joung, Young-Hee;Jeon, Jae-Heung;Choi, Kyung-Hwa;Kim, Hyun-Soon;Joung, Hyouk
    • Korean Journal Plant Pathology
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    • v.12 no.2
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    • pp.187-190
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    • 1996
  • 백합으로부터 total RNA를 분리하여 LSV 외피단백질 유전자의 551 bp에 해당하는 특정 염기서열을 증폭할 수 있는 primer로 RT-PCR를 수행하였다. 그 결과 Lilium oriental hybrid cvs. Miani, Marco Polo, Casablanca, Le Reve 품종에서 551 bp의 DNA 절편이 증폭되었고 이 절편의 염기서열을 분석한 결과 LSV외피단백질 유전자의 일부임을 확인할 수 있었다. 그러므로 RT-PCR 방법으로, 실험에 사용하 s4품종 모두 LSV에 감염되어 있음을 알 수 있었다.

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Preparation of Cu2(btc)3-AAO Hybrid Membrane by Layer-by-layer Technique (Layer-by-layer 기법을 통한 Cu2(btc)3-AAO 하이브리드 분리막의 제조)

  • Yoo, Hyeonseok;Choi, Jinsub
    • Journal of the Korean institute of surface engineering
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    • v.51 no.1
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    • pp.21-26
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    • 2018
  • The $Cu_2(btc)_3$ metal-organic frameworks (MOF) coated anodic aluminum oxide (AAO) membrane was successfully prepared by layer-by-layer technique using hand spray method. It was confirmed that the $Cu_2(btc)_3$ layer, which has the pore sized in 2-3 nm, on surface of AAO exhibited the polycrystalline thin film structure by XRD analysis. More than 100 repetitive spray cycles were required to obtain more robust and thick MOFs on AAO and it was possible to uniformly coat both the top and bottom surfaces of the AAO. It should be noted that the MOFs also could be coated on surface of pores resulting in reduce the size of pore from 52 nm to 32 nm.

Production of Monozygotic Multiplets from 8-cell Mouse Embryos through the Construction of Chimeric Embryos (Chimeric embryo의 구성을 통한 8세포기 생쥐 수정란으로부터의 일란성 다쌍자 생산)

  • 이철상;한용만
    • The Korean Journal of Zoology
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    • v.34 no.3
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    • pp.389-393
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    • 1991
  • To obtain monozygotic multiplets from 8-cell mouse embryos, we artificially constructed chimeric embryos by introducing one blastomere (donor) of 8-cell embryos of Fl hybrid (C57BL/6 X CBA) mice into 4-cell ICR mouse embryos (carrier) of which one blastomere had been previously removed with a micromanipulator. After 42 h of culture, the developmental frequency of chimeric embryos to normal morula and blastocyst was 95% (310/328). When chimeric embryos at morula or blastocvst stage were transferred to pseudopregnant mice,39%, (70/180) of them were born. Most of the offspring (56/70) were the carrier type in coat color, whereas only three of them were the donor type, of which ho were assumed to be derived from single 8-cell donor embryo. Because the two donor type mice Ivere the same sex and produced only the donor type offspring from a testcross, they are probably monozvgotic multiplets of 8-cell mouse embryos. However, since their internal chimerism was not able to be examined, it remains to be determined if their genetic constitutions are identical.

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An Analysis of Posthuman's Body Type and Fashion in SF Movies (SF 영화에 나타난 포스트휴먼의 신체 유형 및 패션 분석)

  • Choi, Jung-Hwa
    • The Research Journal of the Costume Culture
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    • v.19 no.3
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    • pp.473-487
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    • 2011
  • The purpose of this study is to analyze the body type and fashion of posthuman in SF movies. The method of this study was to analyze documentaries, internet web site, fashion books and so forth. The results were as follows: The body types of posthuman were expressed as mutation type, prosthetic type, clone type by biological hybrid or renovation and digital type by computer simulation. The mutation type was expressed as reinforcement of masculinity or feminity and reinforcement of body functions. The fashion item was expressed as a black tailored suit, leather jacket, cat suit, whip, black sunglass, garter belt, high heel shoes, short pants, black one piece dress and functional body suit. The prosthetic type was expressed as reinforcement of body functions and reinforcement of masculinity or feminity. The fashion item was expressed as a military item, high-tech power suit and ergonomic armor suit. The clone type was expressed as the plural ego with reinforcement of body functions. The fashion item was expressed as a power shoulder jacket, fake fur coat, vinyl, black see-through look and functional suit. The digital type was expressed as reinforcement of masculinity or feminity and the plural ego with reinforcement of body functions. The fashion item was expressed as a data suit, leather jacket, black over coat, boots, black sun glass, ethnic items and military items. The meanings of posthuman fashion in SF movies were impurity of posthuman, display of superhuman's power by sexuality, metaphor of power and fantasy of superhero in opposition futuristic dystopia. As mentioned above, posthuman body type and fashion in SF movies become the conversational topic in the real world. The fact that we think about utopia and identity of posthuman in the future is of great significance.

Effect of Nutrient Media and Sucrose Concentration on Shoot Organogenesis in Tomato

  • Bhatia Poonam
    • Journal of Plant Biotechnology
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    • v.7 no.1
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    • pp.57-65
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    • 2005
  • The $F_1$ hybrid Red Coat is one of the most highly sought after cultivars of tomato in Australia and yields up to 7.5 $\cal{kg/plant}$. An experiment was conducted to de-termine the optimal strength and type of growth medium and sucrose concentration for shoot organogenesis of the Red Coat cultivar using cotyledonary explants. Two basal growth media, viz. MS and Gamborg' s $B_5$ at 0, 1/4, 1/2, full or double strength along with sucrose concentrations of 0, 0.5, 1.5, 3 or $5\%$, were evaluated using 25 replications. The main effects of treatment and their mutual interactions were evaluated for the proportion of explants that produced callus and/or shoots, number of shoots produced per explant, callus diameter and shoot height. The explants failed to produce shoots in the absence of mineral nutrient. Only a small proportion of the explants ($6\%$ with $B_5\;and\;3\%$ with MS) regenerated shoots in the absence of sucrose. Lower sucrose concentrations ($0.5-1.5\%$) along with full strength media were optimal for most of the traits studied. The $B_5$ medium outperformed MS medium for shoot organogenesis. For all the traits examined, significant differences in main effects (P < 0.05) and two-way interactions were detected, but no three-way interactions (medium type $\times$ medium concentration $\times$ sucrose concentration) were observed. Sucrose was found essential for the development of chlorophyll. Chlorophyll content increased with an increase in sucrose concentration up to $3\%$ and decreased at $5\%$ sucrose.

THE STUDY ON SHEAR BOND STRENGTHS OF VARIOUS ONE-BOTTLE DENTIN ADHESIVES (수종의 One-bottle 상아질 결합제의 전단 결합 강도에 관한 연구)

  • Oh, So-Hee;Kim, Jong-Soo;Kwon, Soon-Won
    • Journal of the korean academy of Pediatric Dentistry
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    • v.28 no.4
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    • pp.553-565
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    • 2001
  • One-bottle adhesive system was recently developed in order to simplify the clinical skills and save chair time after continuous improvements on dentin bonding agents. To test the shear bond strength of a new "one-bottle adhesive" system to bovine dentin various commercially available one-bottle adhesives(Prime & Bond $2.1^{(R)}$, One Coat $Bond^{(R)}$, Syntac $Sprint^{(R)}$, Single $Bond^{(R)}$) were included for comparison. And we observe the interfacial morphology by scanning electron microscope. The results were as follows; 1. Group II (One Coat $Bond^{(R)}$) showed higher shear bond strength than group I (Prime & Bond $2.1^{(R)}$), group III(Syntac $Sprint^{(R)}$), and group IV(Single $Bond^{(R)}$), but no statistically significant difference was founded between groups(p>.05). 2. Relating reverse-cone shape resin tags were observed in samples of all groups under SEM. We could observed hybrid layer, resin tag and many lateral branches in every group. But, we observed in group III rare lateral branched than other three groups, and discontinuous hybrid layer.

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A New F1 Hybrid Variety of Rapeseed 'Suan' with Early Maturing and High Oleic Acid (조숙 올레인산 고함유 1대잡종 유채 신품종 '수안')

  • Lee, Yong-Hwa;Kim, Kwang-Soo;Jang, Young-Seok;Cho, Hyun-Jun;Choi, Hyun-Gu;Jang, Young-Gik;Kang, Dal-Soon;Kang, Hyung-Sik;Suh, Sae-Jung
    • Korean Journal of Breeding Science
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    • v.43 no.3
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    • pp.172-176
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    • 2011
  • 'Suan' is a new $F_1$ hybrid variety of rapeseed (Brassica napus L.) with early maturing and high oleic acid. This hybrid variety was bred by the cross between Mokpo-CGMS (male sterile line) and 8516-B-5-6-5-3 (restore line) for the production of bio-diesel and edible oil in 2006. 'Suan' has green and parted leaf, yellowish flower, and black seed coat. 'Suan' is more tolerant to lodging and stem rot compared to 'Sunmang', check variety. The ripening date of 'Suan' is June 2nd which is 6 days earlier than 'Sunmang'. Yield trials were conducted from 2006 to 2007 and regional adaptation trials were examined at five locations each in 2008 and 2009. The average seed yield of regional adaptation trials was 381 kg/10a that was 4% higher than that of 'Sunmang'. Total oil content of 'Suan' was 44.3%. Oleic acid content was 68.3%, which is 5.2% higher than 'Sunmang' but, erucic acid was not detected. Total glucosinolate content was 2.31 mg/g. Therefore, this variety is recommended as a leading variety at southwestern area including Jeonnam, Jeonbuk and Kyongnam provinces of South Korea.

A New F1 Hybrid Variety of Rapeseed (Brassica napus L.), 'Jomang' with Early Maturation, High Yield and High Oleic Acid (조숙, 다수성, 올레인산 고함유 유채 신품종 '조망')

  • Kim, Kwang-Soo;Jang, Young-Seok;Lee, Yong-Hwa;Cho, Hyun-Jun;Bang, Jin-Ki;Suh, Sae-Jung
    • Korean Journal of Breeding Science
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    • v.42 no.3
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    • pp.236-240
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    • 2010
  • 'Jomang' is a new $F_1$ hybrid variety of rapeseed (Brassica napus L.) with early maturation, high yield and high oleic acid. This hybrid variety was developed from the cross between Mokpo-CGMS (male sterile line) and 8516-B-5-6-5-3 (restore line) for the production of edible oil and biodiesel in 2006. Yield trials were conducted from 2007 to 2008, and regional adaptation trials were examined at four locations in 2008. 'Jomang' has green and parted leaf, yellowish flower and black seed coat. The ripening date of 'Jomang' is 1~4 days earlier than 'Sunmang' and 'Tammiyuchae'. The average seed yield of the regional adaptation trials was 406 kg/10a, which was 7% and 42% higher than those of 'Sunmang' and 'Tammiyuchae,' respectively. Total oil content of 'Jomang' was 44.5%. 'Jomang' has no erucic acid in fatty acid composition. However, oleic acid content is 68.2%, which is 3.4% and 5.1% higher than 'Tammiyuchae' and 'Sunmang,' respectively. Total glucosinolate content was 2.31 mg/g. Therefore, this variety is recommended as a leading variety at southwestern area including Jeonnam, Jeonbuk and Kyongnam provinces and Cheju island of Korea.

Catalyst preparations, coating methods, and supports for micro combustor (초소형 연소기를 위한 촉매 합성, 담지방법 및 담지체)

  • Jin, Jung-Kun;Kim, Chung-Ki;Kwon, Se-Jin
    • 한국연소학회:학술대회논문집
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    • 2006.10a
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    • pp.235-241
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    • 2006
  • Catalytic combustion is one of the suitable methods for micro power source due to high energy density and no flame quenching. Catalyst loading in the micro structured combustion chamber is one of the most important issues in the development of micro catalytic combustors. In this research, to coat catalyst on the chamber wall, two methods were investigated. First, $Al_2O_3$ was selected as a support of Pt and $Pt/Al_2O_3$ was synthesized through the alumina sol-gel procedure. To improve the coating thickness and adhesion between catalyst and substrate, heat resistant and water solvable organic-inorganic hybrid binder was used. Porous silicon was also investigated as a catalyst support for platinum. Through the parametric studies of current density and etching time, fabrication process of $1{\sim}2{\mu}m$ of diameter and about $25{\mu}m$ depth pores was confirmed. Coated substrates were test in the micro channel combustor which was fabricated by the wet etching and machining of SUS 304. Using $Pt/Al_2O_3$ coated substrate and Pt coated porous silicon substrate, conversion rate of fuel was over 95% for $H_2$/Air premixed gas.

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Catalyst Preparations, Coating Methods, and Supports for Micro Combustor (초소형 연소기를 위한 촉매 합성, 담지방법 및 담지체)

  • Jin, Jung-Kun;Kim, Chung-Ki;Lee, Sung-Ho;Kwon, Se-Jin
    • Journal of the Korean Society of Combustion
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    • v.11 no.2
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    • pp.7-14
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    • 2006
  • Catalytic combustion is one of the suitable methods for micro power source due to high energy density and it can be applied to micro structured chamber without consideration of quenching since it is flameless combustion. Catalyst loading in the micro structured combustion chamber is one of the most important issues in the development of micro catalytic combustors. In this research, to coat catalyst on the chamber wall, two methods were investigated. First, $Al_2O_3$ was selected as a support of Pt and $Pt/Al_2O_3$ was synthesized through the alumina sol-gel procedure. To improve the coating thickness and adhesion between catalyst and substrate, heat resistant and water solvable organic-inorganic hybrid binder was used. Porous silicon was also investigated as a catalyst support for platinum. Through the parametric studies of current density and etching time, fabrication process of $1{\sim}2{\mu}m$ of diameter and about $25{\mu}m$ depth pores was confirmed. Coated substrates were test in the micro channel combustor which was fabricated by the wet etching and machining of SUS 304. Using $Pt/Al_2O_3$ coated substrate and Pt coated porous silicon substrate, conversion rate of fuel was over 95 % for $H_2/Air$ premixed gas.

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