진흙버섯속(상품명 : 상황버섯) 재배방법에 따른 경제적 효과 분석

장현우,이영석 한국버섯학회 2004 한국버섯학회지 Vol.2 No.2

This experiments were conducted to study on the economic analysis of Phellinus spp.(Comercial name: Sanghwang mushroom). These results were as follows: Phellinus spp. can be cultivated about 4 years by one time inoculation. This mushroom has been cultivated by the method of burying log into the soil(BM) at the first time. Recently, however, the method of hanging log on the shelves in the house(HM) is used, because HM has more advantage than BM that HM can be cultivated more pieces of logs than BM. On the other hand, HM is required to invest more 5,678,230Won for the equipments than the BM. And also, HM is required 14,400 pieces(2.8 times) more log numbers than BM 5,000 pieces. Also, HM is required more 3,680,000Won to purchase log, 1,104,000Won to purchase spawn. The cost of production is required to 20,180,971Won for BM, and 37,953,825Won for HM. Accordingly, product cost of HM is 1.9 times higher than BM. The operating cost is required to 1,207,712Won for BM, and 24,075,432Won for HM. Accordingly, operating cost of HM is 2.0 times higher than BM. The net income is 580,940,000Won for BM, and 1,683,300,000Won for HM. Accordingly, net income of HM is 2.9 times higher than BM. The income is 589,040,000Won for BM, and 169,718,000Won for HM. Accordingly, income of HM is 2.9 times higher than BM. In conclusion, HM is required 2.8 times more logs. HM has 1.03 times more products per a piece of log. HM has 1.9 times more production cost, and 2.0 times more operating cost. As you read above, HM and BM have two different aspects. BM is required less investment cost than HM, but BM has lower income because of the different capacity of production. By the comparing those two methods, HM is resulted more efficient method for the producing mushroom. Only in the side of cash flowing, the cash expenditure of BM is required less money at first year. But it has no production at first year. BM would get the income after 2 years buring the logs. The cash expenditure of HM is required much money for the equipments and the logs at first year, but HM would get the income at first year.

3차원 입자 시뮬레이션을 이용한 직각 자석 구조의 마그네트론 스퍼터 장비 모델링 및 타겟 침식률 계산

장현우,김성봉,박장식,오지영,이승길,유석재,유창모 한국진공학회 2011 한국진공학회 학술발표회초록집 Vol.40 No.0

쇼트트랙 스피드스케이팅의 경기상황 속 선수의 실존

장현우,이경숙 한국체육과학회 2023 한국체육과학회지 Vol.32 No.2

The purpose of this study is to find out what kind of action and what kind of existence he reveals himself as in the competition situation of short track speed skating, with the subject of the athlete's existence in the competition situation. To this end, based on the limited texts (existence, struggle, bloody, subjectivity) presented by Martin Heidegger and Jean-Paul Sartre, we focused on clarifying the passing behavior (passing direction, passing timing) that occurs in the short track speed skating competition situation. did As a result, it suggests the importance of understanding the subjectivity of athletes, not objectivity, and clarifying their own existence. Its contents are as follows. First, the passing of an athlete is a promising future possibility. Second, it is a being infused with an existence-in-ice. Third, players are beings with subjectivity. In conclusion, a short track speed skater is a human being with subjectivity who is a bloody being in the game situation, and strives toward the future possibility in each game situation and identifies his own existence by making a choice.

국내 쇼트트랙 스피드스케이팅의 연구동향

장현우,장익영,이경숙 한국체육과학회 2022 한국체육과학회지 Vol.31 No.6

The purpose of this study was to examine the research trends of ‘short track speed skating in Korea’, to present academic reflection and development direction through research analysis, and to provide basic data. A total of 167 domestic theses and journal articles were collected through six keywords. In addition, the following research questions were raised. There will be differences in the classification of papers, research subjects, research areas, and research methods of domestic short track speed skating by research year. In order to derive the results of these research problems, SPSS 29.0 was used to analyze the results. Based on the results of the analysis, reliability of the research was secured by measuring the reliability among the evaluators. The results of the analysis are as follows: First, the number of theses and journals has steadily increased, but the number of theses has recently decreased. Second, there were many studies on participants, and the study on instructors, parents, and equipment was insufficient. Third, the research division was concentrated on sports psychology, exercise physiology, and exercise mechanics, and recently it has been decreasing in all research divisions except sports industry and management. Fourth, quantitative research accounted for the largest proportion of research methods, followed by qualitative research and mixed research.

컴퓨터 기법을 이용한 초음파 영상에서의 지방간 분류

장현우,김광백,김창원,Jang, Hyun-Woo,Kim, Kwang-Beak,Kim, Chang Won 한국정보통신학회 2013 한국정보통신학회논문지 Vol.17 No.9

본 논문은 Fuzzy Contrast Enhancement 기법과 FCM을 이용하여 대비를 개선한 후, Fuzzy Contrast Enhancement를 간과 신장의 초음파 영상에 적용하여 지방간 농도 수치를 분류하는 방법을 제시한다. 간, 신장 영역을 촬영한 초음파 영상에서 촬영 정보나 눈금자 등과 같이 필요 없는 부분을 잡음으로 간주하여, 제거한 ROI 영상을 추출하고, Fuzzy Contrast Enhancement 알고리즘을 이용하여 명암 대비를 강조한다. Fuzzy Contrast Enhancement 기법이 적용된 간, 신장 영역 영상에서 평균 이진화를 적용한 후, 평균 이진화를 적용한 영상에 Blob 알고리즘을 적용하여 간, 신장 실질 영역의 ROI 영상을 추출한다. 추출한 간 영역과 신장영역의 ROI 영상을 FCM을 이용하여, 10개의 명암도 Level로 각 각 분류한 후, 분류된 간, 신장 실질 영역의 명암도 Level 중 많이 분포된 명암도 Level을 기준으로 간, 신장 실질 영역의 대표 명암도를 추출한다. 제안된 방법을 간, 신장 영역을 촬영한 초음파 영상에 적용하여 간의 지방도를 분류한 결과, 영상의학과 전문의의 판독과 일치하여 향후 지방간의 진단에 효과적으로 적용할 수 있는 방법이 될 수 있을 것으로 사료된다. We propose a method for the classification of fatty liver by ultrasound imaging using Fuzzy Contrast Enhancement Technique and FCM. ROI images are extracted after removal of information data except ultrasound image of the liver and the kidney then image contrast is improved by Fuzzy Contrast Enhancement Algorithm. The images applied Fuzzy Contrast Enhancement Technique is applied average binarization then ROI images of liver and kidney parenchyma are extracted using Blob algorithm. Representative brightness is extracted in the liver and kidney images using the most frequent brightness level after classification of 10 brightness levels. We applied this method to ultrasound images and a radiologist confirmed the accuracy of diagnosis for fatty liver. This method would be a model for automatic method in the diagnosis of fatty liver.

무선 OFDM 시스템에서의 적응적인 Hybrid MIMO 협력 기법

장현우,이성주,송형규 한국ITS학회 2013 한국ITS학회 학술대회 Vol.2013 No.1

치과용 임플란트 상부구조물(BICON Abutment)의 2차 가공을 위한 밀링가공 보조지그 설계

장현우,이종선 한국기계기술학회 2023 한국기계기술학회 학술대회논문집 Vol.2023 No.12

방울솜을 이용한 양송이 퇴비배지 제조법 개발

장현우,최형기 한국버섯학회 2004 한국버섯학회지 Vol.2 No.1

This experiments was conducted to study on the substitute cotton wastes for ricestraw compost media on cultivation of Agaricus bisporus. This results were as follows. The results of yield according to the mixture rate of cotton wastes(4000~5500kg/198㎡), rice hull(4.5%), chicken manure(50%), gypsume(1.5%), urea(2%), tobacco powder((2.5%), seasame meal(5%) and MgSo4(5%) was effected to 57.2% increasement with 64.33kg in summer season, 65.21kg in winter season, 39.6kg in control, respectively. The results of yield according to the mixture rate of cotton wastes(4000~5500kg/198 ㎡), cotton hull(1.25%), rice hull(4.5%), chicken manure(50%), gypsume(1.5%), urea(2%), cigarette powder(2.5%), seasame dregs(5%) and MgSo4(5%) was effected to 62.3% increasement with 61.0kg in summer season, 62.3kg in winter season, 39.6kg in control, respectively. The results of yield according to the mixture rate of cotton wastes(2000~2500kg/198㎡), cotton hull((2000~2500kg / 198㎡), rice hull(2.5%), chicken manure(37.5%), gypsume(1.5%), urine(2%), cigarette powder((1.25%), seasame dregs(2.5%) and MgSo4(3%) was effected to 40.4% increasement with 57.33kg in summer season, 58.34kg in winter season, 39.6kg in control, respectively.

알 권리 vs 사생활 침해

장현우 언론중재위원회 2013 言論仲裁 Vol.129 No.-

貿易保險이 輸出伸張에 미치는 영향

張現寓 단국대학교 무역학과 1987 무역논집 Vol.- No.1