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김용철,Youngkeun Ahn,Inna Kim,Doo Hwan Lee,Min Chul Kim,Doo Sun Sim,Young Joon Hong,Ju Han Kim,Myung Ho Jeong 대한심장학회 2018 Korean Circulation Journal Vol.48 No.12
Background and Objectives Feasibility of coronary angiography (CAG) and percutaneous coronary intervention (PCI) via left snuffbox approach is still concerned. We aimed to investigate efficacy and safety of the left snuffbox approach for CAG and PCI. Methods Left snuffbox approach was tried in 150 patients who planned to perform CAG or PCI for suspected myocardial ischemia between 1 November 2017 and 31 March 2018. Results Success rate of radial artery (RA) cannulation via snuffbox approach was 88.0% (n=132). Among 132 individuals, 58 (43.9%) acute coronary syndrome (ACS) patients were included. The diameter of snuffbox RA was significantly smaller than conventional RA (2.57 mm vs. 2.72 mm, p<0.001) from quantitative computed angiography of 101 patients. However, CAG via snuffbox approach by 6 French sheath was successfully performed in all 132 patients. In addition, there was significant correlation between the snuffbox and conventional RA diameter (r=0.856, p<0.001). In 42 PCI cases, including 25 patients with acute myocardial infarction (AMI), the success rate of PCI via snuffbox approach was 97.6% (n=41). Intravascular imaging-guided PCI was performed in 8 (19.5%) patients and multi-vessel PCI in 4 (9.8%) cases. Regarding vascular complication, forearm swelling with bruising, not requiring surgery or transfusion, occurred in 2 (4.9%) PCI cases. Conclusions Left snuffbox approach is suitable for CAG and PCI compared with the conventional radial approach.
CFT 기둥과 Flat Plate 슬래브 접합부 거동의 유한요소해석
김용철(Kim Yong-Chul),주영규(Ju Young-Kyu),김상대(Kim Sang-Dae) 대한건축학회 2004 大韓建築學會論文集 : 構造系 Vol.20 No.8
Since 1990s, the construction of tall buildings has been increased greatly. For the tall buildings, the story height is an<br/> important factor to accomplish economic buildings. Several researchers including authors have studied for the structural<br/> systems reducing a story height of the buildings. A structural system consisting of concrete filled tube column and flat<br/> plate slab is one of the story reducing structural systems, in which each element has been used as an efficient<br/> component for tall buildings. However, the structural behaviour of the joint has to be clearly explored. Therefore, the<br/> finite element analysis method is used to verify the stress concentration, load flow and excessive deformation on the<br/> joints. Three types of joint details are compared and the better one is obtained. The design equation for the adopted joint<br/> detail is also proposed by the FEM analysis.
박영철(Young-Chul Park),김정선(Jeong-Seon Kim),송승운(Seung-Woon Song),김용철(Yong Chol Kim),김광호(Kwang-Ho Kim) 한국자원식물학회 2005 한국자원식물학회지 Vol.18 No.3
아그로박테리움을 이용한 형질전환연구에 기초자료로 활용코자 기내배양중인 땅나리, 하늘나리, 대만나리의 잎절편으로부터 식물체를 유도하였다. 땅나리 잎절편으로부터 다수의 배양체를 얻기 위해서는 MS배지에 0.2mg·L-1BA 와 0.5mg·L-1NAA 를 첨가하여 암조건에서 배양하는 것이 효과적이었고, 하늘나리 잎 재분화에는 0.2mg·L-1BA 와 2.0mg·L-1NAA 혼용처리하는 것이 효과적이었으며, 대만나리의 잎 재분화에는 1.0mg·L-1BA 와 1.0mg·L-1NAA 혼용처리가 우수하였다. This study was conducted to examine the effects of plant growth regulators on the plant regeneration from leaf segments of Lilium callosum, L. concolor var. partheneion, and L. formosanum. Leaf segments were sectioned about 5 mm long and cultured on the basal medium (MS medium with 3% sucrose and 0.8% agar) under dark condition, The most effective plant regulators on harvesting more shoots from leaf culture of L. callosum were 0.2mg·L-1BA and 0.5mg·L-1NAA . Culturing in the basal medium with 0.2mg·L-1BA and 2.0mg·L-1NAA was effective for leaf culture of L. concolor var. partheneion. The treatment of 1.0mg·L-1BA and 1.0mg·L-1NAA was the most effective condition for shoot harvest at the leaf culture of L. formosanum.
적색과 청색의 LEDs광 및 광도가 들깨의 생장, 광합성 및 광형태 형성에 미치는 영향
최영환(Young-Whan Choi),안종길(Chong-Kil Ahn),손병구(Beung-Gu Son),강점순(Jum-Soon Kang),최인수(In-Soo Choi),김용철(Yong-Chul Kim),이영근(Young-Guen Lee),김근기(Keun-Ki Kim),김용균(Yong-Gyun Kim),손길우(Kil-Woo Son) 한국원예학회 2003 Horticulture, Environment, and Biotechnology Vol.44 No.3
Hyeun-Kyeung Kim(김현경),Yong-Chul Kim(김용철),Sun-Tae Kim(김선태),Beung-Gu Son(손병구),Yong-Whan Choi(최영환),Jum-Soon Kang(강점순),Young-Hoon Park(박영훈),Young-Son Cho(조영손),In-Soo Choi(최인수) 한국생명과학회 2010 생명과학회지 Vol.20 No.8
콩은 세계 유지작물시장에서 48%을 차지하는 중요한 작물이다. 콩 종실의 크기와 기름함량의 양적 및 질적개선이 콩 육종에 있어서 가장 중요한 목적중의 하나이다. 이 연구의 목적은 종실의 크기와 지방산조성을 조절하는 양적 형질 유전자좌를 밝히는 것이다. 큰올콩과 익산10호의 교배로부터 F2:10 세대의 재조합자식계통 115계통을 이용하였다. 협의 유전력 검정에서는 백립중이 0.72, 포화지방산(팔미트산 + 스테아릭산)이 0.60, 올레익산이 0.83과 리놀레익산이 0.77 및 리놀렌산이 0.81을 나타내었다. 백립중과 연관된 양적형질유전자좌는 염색체 1번, 3번, 8번, 9번과 16번 및 17번에 7개로 나타났다. 포화지방산은 염색체 17번과 19번에 2개의 독립된 양적 형질 유전자좌가 연관되어 있었다. 올레익산 함량에 대해서는 다섯 개의 독립적인 양적 형질 유전자좌가 염색체 7번, 11번, 14번과 16번 및 19번에서 확인하였다. 리놀레익산 함량에 대한 5개의 양적 형질 유전자좌는 염색체 2번, 11번, 14번과 16번 및 19번에 있었다. 리놀렌산 함량은 3개의 양적형질유전자좌가 염색체 8번과 10번 및 19번에 관련되어 있었다. 그리고 올레익산과, 리놀레익산 및 리놀렌산에 공통적으로 확인되는 주요 양적 형질 유전자좌는 염색체 19번 이었다. Soybean [Glycine max(L.) Merr.] is an important crop, accounting for 48% of the world market in oil crops. Improvements in economic traits, such as quality and oil constituents, arethe most important objectives in soybean breeding. The objective of this study was to identify quantitative trait loci (QTLs) that control seed size and fatty acid contents in soybean. 115 F2:10 recombinant inbred lines (RIL) developed from a cross of 'Keunolkong' and 'Iksan10' were used. Narrow-sense heritability estimates based on a plot mean on 100 seed weight, saturated fatty acid (palmitic acid + stearic acid), and oleic, linoleic, and linolenic acid content were 0.72, 0.60, 0.83, 0.77 and 0.81, respectively. The 100 seeds weight was related to seven QTLs located on chromosomes 1, 3, 8, 9, 16 and 17. Two independent QTLs for saturated fatty acid content were identified on chromosomes 17 and 19. Five independent QTLs for oleic acid content wereidentified on chromosomes7, 11, 14, 16 and 19. Five QTLs for linoleic acid content were located on chromosomes 2, 11, 14, 16 and 19. Three QTLs for linolenic acid content were located on chromosomes 8, 10 and 19. Oleic, linoleic, and linolenic acid had one major common QTL on chromosome 19. Thus, linoleic and linolenic acid content were identified as common QTLs.