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팽이버섯(Flammulina velutipes)의 Genome-wide SNP (Single Nucleotide Polymorphism)에 의한 계통 분석
우성이 ( Sung I Woo ),김은선 ( Eun Seon Kim ),한재구 ( Jae Gu Han ),장갑열 ( Kab Yeul Jang ),신평균 ( Pyung Gyun Shin ),오연이 ( Youn Lee Oh ),오민지 ( Min Ji Oh ),조성환 ( Sung Hwan Jo ),이정희 ( Jeong Hee Lee ),김경수 ( Kyung So 한국균학회 2015 韓國菌學會誌 Vol.43 No.4
Genome-wide reanalyzed data of 25 Flammulina strains were compared against the reference genome (KACC42780) to establish a genome-wide single nucleotide polymorphism (SNP). The rate of mapping differences between the strains reflected in the strain variation in its result. Genome-wide SNPs distribution divided into types of homozygous SNP and heterozygous SNP moreover all of the strains demonstrated a wide variation in all of the regions. In the further study of topological relationship between the collected strains, phylogenetic tree was separated into 3 major groups. Group I contained F. velutipes var. related strains of ASI 4062, 4148, 4195. Group 2 contained strains that are different species of ASI 4188 F. elastica, ASI 4190 F. fennae, and ASI 4194 F. rossica. The other 19 strains F. velutipes were classified as a single group. However, further experiment to discriminate its genetic relationship between the white group and brown group did not verify its validity. The inferred tree exhibited a phylogenetic relationship between Korea white fruitbody forming strains of ASI 4210, 4166, 4178 and Japan white fruitbody forming strains of ASI 4209, 4167 confirmed to be genetically closely related.
레이저 국소증착을 이용한 TFT-LCD 회로 수정용 미세 텅스텐 패턴 제조
박종복(Jong-Bok Park),김창재(Chang-Jae Kim),박상혁(Sang-Hyuck Park),신평은(Pyung-Eun Shin),강형식(Hyoung-Shik Kang),정성호(Sung-Ho Jeong) Korean Society for Precision Engineering 2005 한국정밀공학회지 Vol.22 No.8
This paper presents the results for deposition of micrometer-scale metal lines on glass for the development of TFT-LCD circuit repair-system. Although there had been a few studies in the late 1980’s for the deposition of metallic interconnects by laser-induced chemical vapor deposition, those studies mostly used continuous wave lasers. In this work, a third harmonic Nd:YLF laser (351㎚) of high repetition rates, up to 10 KHz, was used as the illumination source and W(CO)? was selected as the precursor. General characteristics of the metal deposit (tungsten) such as height, width, morphology as well as electrical properties were examined for various process conditions. Height of the deposited tungsten lines ranged from 35 to 500 ㎚ depending on laser power and scan speed while the width was controlled between 3∼50 ㎛ using a slit placed in the beam path. The resistivity of the deposited tungsten lines was measured to be below 1 Ωㆍ㎛, which is an acceptable value according to the manufacturing standard. The tungsten lines produced at high scan speed had good surface morphology with little particles around the patterns. Experimental results demonstrated that it is likely that the deposit forms through a hybrid process, namely through the combination of photolytic and pyrolytic mechanisms.