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남자고등학생 럭비 숙련자․비숙련자의 플레이스 킥 동작에 대한 운동역학적 비교 분석
윤남석,주명덕 한국교원대학교 학교체육연구소 2010 학교체육연구소지 Vol.17 No.1
The aim of this study is to offer scientific materials and effective teaching methods of place kick motions of high school students by comparing and analyzing kinetic and motor mechanical variables of experts and beginners’ place kicks which are usually u
混濁法에 依한 아미노酸 營養輸液製劑의 微生物學的 分析에 關한 硏究
尹男錫 서울大學校 保建大學院 1973 公衆保健雜誌 Vol.10 No.1
The pressing need for more specific information on amino acid preparation gave rise to procedures involving microbiological and column chromatographic methods for individual amino acids. This experiment was conducted to select a suitable test organism, the concentration range of each amino acid and key factors for the microbiological assay of Glycine, L-Isoleucine, L-Leucine, L-Lysine, L-Threonine and L-Valine by turbidimetric method. In addition to the results have been compared with two methods for amino acid analysis, column chromatographic method and microbiological assay. The results of this study were as follows; 1. Leuconostoc mesenteroides was more sensitive and responsive to increasing amount of Glycine, L-Isoleucine. L-Leucine, L-Lysine, L-Threonine and L-Valine than Lactobacillus arabinosus or Streptococcus faecalis. So Leuconostoc mesenteroides is suitable for the assay of these amino acids. 2. The concentration ranges of each amino acid in which Leuconostoc mesenteroides grew proportionally were as follows. Glycine; 1-4mcg/ml L-Isoleucine; 1-4mcg/ml L-Leucine; 0-4mcg/ml L-Lysine; 0-10mcg/ml L-Threonine; 1-5mcg/ml L-Valine; 6-10mcg/ml 3. In the process of microbiological assay of Amino Acids by turbidimetric method such factors as a suitable test organism adoption, a suitable amino acid concentration range determination, inoculum dilution rate, incubation period and reproducibility of standard curve must be considered as key factors. 4. There was no significant difference that confidence limits at P=0.05 in both method, namely, the results of column chromatographic method for amino acid analysis agreed well with the microbiological assay.
유전 알고리즘 이해를 돕기 위한 비버챌린지 유형 문항 제작 연구
윤남석(Namseok Yun),김승현(Seunghyun Kim),선하은(Haeun Sun),엄성민(Sungmin Um),정이안(Yian Jung),조민성(Minsung Jo),이현아(Hyeonah Lee) 한국컴퓨터교육학회 2021 한국컴퓨터교육학회 학술발표대회논문집 Vol.25 No.1(A)
본 연구의 목적은 중학생의 유전 알고리즘 이해를 돕기 위한 방법으로 유전 알고리즘을 주제로 한 비버챌린지 유형 문항을 제작하는 것이다. 유전 알고리즘을 탐구한 내용을 바탕으로 비버 챌린지 유형의 1개 문항을 제작하였으며, 사전 지식 없이도 문제를 이해할 수 있다는 비버챌린지 문항의 특징을 반영하기 위해 비버챌린지 문항을 해결해 본 경험이 있는 고등학생 42명을 대상으로 설문을 실시하고, 설문 결과를 바탕으로 문항을 수정하여 완성도를 높이고자 하였다. 본 연구가 유전 알고리즘의 이해를 돕는 비버챌린지 활용 융합 교육 연구에 도움이 되길 바란다.
전동화 시내버스 사용자 관점을 고려한 실내 난방 에너지 절감 시스템 개발
윤남석(Namseok Yun),류보현(Bohyeon Ryu),조왕현(Wanghyun Joe) 한국자동차공학회 2023 한국자동차공학회 학술대회 및 전시회 Vol.2023 No.11
Heat pump has been applied to electric buses to improve power efficiency. The heating system of electric buses generally consists of roof-on mount type heat pump and an electric heater mounted on the floor. These two heating systems are independently operated and controlled. It should be noted that the application of independent control heat pump was not effective in improving power consumption as a result of survey. Cooperative heating control maximizes the operation duty of the heat pump without additional attention or manipulation of the driver on field driving. It has been developed and applied to our EV bus applied roof-on mount heat pump system.