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SSR 마커를 이용한 아시아 지역에서 수집된 벼 유전자원의 유전적 다양성 및 집단구조 분석
윤민영 ( Min-young Yoon ),박용진 ( Yong-jin Park ) 한국국제농업개발학회 2015 韓國國際農業開發學會誌 Vol.27 No.5
본 연구는 효율적인 자원보존과 유전자원의 작물육종 활용성 제고를 위한 기초정보제공을 목적으로, 29개 SSR marker를 이용하여 아시아지역의 10개 국가에서 수집된 벼 유전자원에 대해 유전적 다양성 및 집단 구조 분석을 수행하였다. 1. 총 85점의 벼 유전자원이 수집되었으며, 29개 SSR 마커에 의해 증폭된 allele 수는 총 342개 였다. Allele 수는 2개에서 28개 범위로 나타났으며, 마커당 평균 allele 수는 11.8개 였다. 유전적 다양성을 나타내는 genetic diversity와 PIC값의 범위는 각각 0.12-0.93과 0.11-0.93으로 나타났고, 평균은 각각 0.73과 0.71로 나타났다. 2. 국가별 벼 자원의 유전적 거리를 기초로 유연관계를 분석한 결과 2개 그룹으로 구분되었다. BⅠ 그룹에는 남아시아지역에 속하는 스리랑카, 인도, 방글라데시, 파키스탄이 포함되었고, BII 그룹에는 라오스를 제외한 동남아시아 지역인 미얀마, 부탄, 베트남, 필리핀, 태국이 포함되었다. 3. 수집 국가별 마커당 평균 allele 수는 미얀마가 1.28개로 가장 낮았고, 필리핀이 7.03개로 가장 높았으며, PIC 값 역시 필리핀이 0.64로 가장 높은 값을 보였고, 미얀마는 가장 낮은0.15로 관찰됐다. 4. 유전적 거리와 Structure ver2.2를 이용하여 집단의 구조를 분석한 결과, 75%의 확률에서 85개 자원 중 80개 자원(64.1%)는 3개의 subpopulation으로 나눌 수 있었으며, 5개자원(5.9%)은 유전적으로 혼입된 형태를 나타냈다. 5. 각각의 subpopulation은 수집 국가의 특성과 일치하지 않았으며, 대부분 자원은 각각의 subpopulation에 불규칙적으로 분포되었다. Genetic diversity and population genetic structure of 85 rice accessions collected from 10 South and Southeast Asian countries were studied based on 29 simple sequence repeat markers (SSRs). In total, 342 alleles were identified; the number of alleles per locus ranged from 2 to 28, with a mean value of 11.8 alleles. Polymorphic information content (PIC) values ranged from 0.11 to 0.93, with an average of 0.71, revealing an excess of heterozygous individuals at 29 SSR markers and an excess of homozygous individuals at two SSR markers. The means of expected heterozygosity (HE) and genetic diversity were both 0.73, ranging from 0.12 to 0.93 and 0.11 to 0.94, respectively. As a result of a modelbased structure analysis, three distinct groups consistent with clustering results based on genetic distance were identified. This study explored the genetic diversity and population genetic structure of domesticated rice collected from South and Southeast Asia. This collection can be used for future germplasm conservation and crossbreeding programs.
CVD 다이아몬드가 코팅된 알루미늄 방열판의 방열 특성
윤민영(Min Young Yoon),임종환(Jong Hwan Im),강찬형(Chan Hyoung Kang) 한국표면공학회 2015 한국표면공학회지 Vol.48 No.6
Nanocrystalline diamond(NCD) coated aluminium plates were prepared and applied as heat sinks for LED modules. NCD films were deposited on 1 mm thick Al plates for times of 2 - 10 h in a microwave plasma chemical vapor deposition reactor. Deposition parameters were the microwave power of 1.2 kW, the working pressure of 90 Torr, the CH4/Ar gas ratio of 2/200 sccm. In order to enhance diamond nucleation, DC bias voltage of −90 V was applied to the substrate during deposition without external heating. NCD film was identified by X-ray diffraction and Raman spectroscopy. The Al plates with about 300 nm thick NCD film were attached to LED modules and thermal analysis was carried out using Thermal Transient Tester (T3ster) in a still air box. Thermal resistance of the module with NCD/Al plate was 3.88 K/W while that with Al plate was 5.55 K/W. The smaller the thermal resistance, the better the heat emission. From structure function analysis, the differences between junction and ambient temperatures were 12.1℃ for NCD/Al plate and 15.5℃for Al plate. The hot spot size of infrared images was larger on NCD/Al than Al plate for a given period of LED operation. In conclusion, NCD coated Al plate exhibited better thermal spreading performance than conventional Al heat sink.
윤민영 ( Min-young Yoon ) 한국고등직업교육학회 2010 한국고등직업교육학회논문집 Vol.11 No.2·3
In recent, Korean university society faces the most several important issues that legally fixed student number of university entrance will over the student number of highschool graduation, the confusion of educational policies, and the rapid growth of diverse educational institutions etc. Moreover, Korean colleges that have rarely higher management system are in bigger troubles. They recruit students, and promote colleges not for strategy but for survival. In other words, they have simple adaptational subject to circumstances. In these situations, Korean colleges could overcome the problems through the importation of management strategy such as to restore college's identity, to enforce competitiveness, and to rehabilitate college reliability. The purpose of this study to suggest the promotion strategy for building favorable image of colleges up to the public based on survey and research of each college's PR activities.
Multi-channel과 Densely Connected Convolution Networks을 이용한 한국어 감성분석
윤민영 ( Min-young Yoon ),구민재 ( Min-jae Koo ),이병래 ( Byeong Rae Lee ) 한국정보처리학회 2019 한국정보처리학회 학술대회논문집 Vol.26 No.1
본 논문은 한국어 문장의 감성 분류를 위해 문장의 형태소, 음절, 자소를 입력으로 하는 합성곱층과 DenseNet 을 적용한 Text Multi-channel DenseNet 모델을 제안한다. 맞춤법 오류, 음소나 음절의 축약과 탈락, 은어나 비속어의 남용, 의태어 사용 등 문법적 규칙에 어긋나는 다양한 표현으로 인해 단어 기반 CNN 으로 추출 할 수 없는 특징들을 음절이나 자소에서 추출 할 수 있다. 한국어 감성분석에 형태소 기반 CNN 이 많이 쓰이고 있으나, 본 논문에서 제안한 Text Multi-channel DenseNet 모델은 형태소, 음절, 자소를 동시에 고려하고, DenseNet 에 정보를 밀집 전달하여 문장의 감성 분류의 정확도를 개선하였다. 네이버 영화 리뷰 데이터를 대상으로 실험한 결과 제안 모델은 85.96%의 정확도를 보여 Multi-channel CNN 에 비해 1.45% 더 정확하게 문장의 감성을 분류하였다.
소아의 천공형 충수염에서 복강경 충수절제술 및 개복 충수절제술의 비교
박재영(Jae-Young Park),최윤미(Yun-Mee Choe),윤민영(Min-Young Yun),최선근(Sun Keun Choi),허윤석(Yoon-Seok Hur),이건영(Keon-Young Lee),김세중(Sei-Joong Kim),조영업(Young Up Cho),안승익(Seung-Ik Ahn),홍기천(Kee-Chun Hong),신석환(Seok-Hw 대한외과학회 2008 Annals of Surgical Treatment and Research(ASRT) Vol.75 No.2
Purpose: Appendectomy is the most common emergent surgical operation in children. Laparoscopic appendectomy is currently a popular procedure in children, but pediatric laparoscopic appendectomy is controversial for its efficacy and safety, especially for perforated appendicitis. We compared the efficacy and safety between laparoscopic appendectomy (LA) and open appendectomy (OA) for treating perforated appendicitis of children. Methods: This study involved a total of 69 patients who underwent appendectomy for perforated appendicitis at our institution between March 2005 and September 2007, and these patients were less than 15 years old. There were 41 patients in the LA group and 28 patients in the OA group. The demographic data, operative time, length of the hospital stay, bowel movement, pain control and complications were assessed. Results: There was no significant difference between the LA and OA groups with respect to gender, age, the operation time, the length of the hospital stay, bowel movement and pain control. There was one complication (2.4%) in the LA group and four complications (16.6%) in the OA group, but there was no significant difference (P=0.062). There was no wound infection. Conclusion: Laparoscopic appendectomy for the children with perforated appendicitis is a safe procedure. Yet we need further high quality randomized trials to compare the 2 techniques.