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이훈수,정창호,김기복,조병관,Lee, Hoon-Soo,Chung, Chang-Ho,Kim, Ki-Bok,Cho, Byoung-Kwan 한국축산식품학회 2010 한국축산식품학회지 Vol.30 No.2
The purpose of this study was to evaluate the freshness of chicken meat during 19 d of storage at $4^{\circ}C$ using a portable electronic nose. The portable system consisted of six different metal oxide sensors and a moisture sensor. Determination of volatile compounds with gas chromatography-mass spectrometry, total bacterial count (TBC), and 2-thiobarbituric acid reactive substances (TBARS) monitored the quality change of the samples. These results were compared with the results measured by the electronic nose system. TBC and TBARS measurements could be separated into five groups and seven groups, respectively, among ten groups. According to principal component analysis and linear discriminant analysis with the signals of the portable electronic nose, the sample groups could be clearly separated into eight groups and nine groups, respectively, among ten groups. The portable electronic nose demonstrated potential for evaluating freshness of stored chicken.
논문 : 정보처리 및 복합기술 ; IT융합 차세대 농기계 수출전략형 핵심기술 우선순위 선정에 관한 연구
장동일 ( Dong Il Chang ),조병관 ( Byoung Kwan Cho ),이훈수 ( Hoon Soo Lee ),정선옥 ( Sun Ok Chung ),박승제 ( Seung Jae Park ),김철수 ( Chul Soo Kim ),이영희 ( Young Hee Lee ) 한국농업기계학회 2011 바이오시스템공학 Vol.36 No.6
The objective of this study was to develop the export strategic core technologies for IT fusion next generation agricultural machines by the analysis of comprehensive and cooperative systems of industries, universities, and institutes. In order to achieve the objective of this study, an expert panel was formed and operated. The first survey was conducted by the Delphi method. For this the export strategic core technologies were surveyed and analyzed using the questionnaire. Based on the results of the first survey, the second survey was conducted. The questionnaire used for the second survey was designed by results of the first survey. The results of the second survey was analyzed by AHP method. The third survey was conducted based on the second one, and the final results were analyzed and the export strategic core technologies were developed through the expert meeting. The study results showed six export strategic core technologies as the followings: 1) environment-friendly engine technology for high performance 2) high performance/high efficiency power transmission system technology 3) development of measurement system technology for safety of agricultural products 4) field application of sensor networks 5) large size combine development technology for high performance 6) quality evaluation technology for agricultural products.
상추 생육에 적합한 식물공장의 LED 광환경에 관한 문헌연구
심수빈, 이훈수 忠北大學校 農業科學硏究所 2008 農業科學硏究 Vol.36 No.2
Recently, there have been brisk research on plant production systems in plant factories that can???? control the environment. The development of LEDs as artificial light provides new possibilities in plant factories operation. In this paper, we will analyze the existing research on the design of LED lighting conditions that is efficient for productivity and quality enhancement of lettuce cultivated in plant factories and summarize it for optimal LED lighting conditions. The effect of different kinds of artificial lightings on the reproduction of lettuce in plant factories was investigated and the effect of RGB ratio of LEDs on the growth and quality of lettuce were investigated. LED lighting is a light developed to replace ordinary artificial lighting. It is effective in reducing power and is environmentally friendly. And it is effective as an artificial light source for plant cultivation because it can selectively use red light and blue light which are effective in plant photosynthesis. RGB Ratio of LED affect the growth and development of lettuce and its nutritional quality. The selection of light source should be considered according to the plant variety cultivated in the plant factory and the nutient to be promoted. Blue light has more effect on quality such as vitamin C than red light, but red light rather than blue light on appearance changes such as increase of body weight and leaf shape. The gene expression and nutrient accumulation of lettuce are relatively superior in mixed light than in single light. Considering the various conditions, the ratio of RGB for lettuce cultivation in a fully controlled plant production system is approximately appropriate 5~7 : 0~2 : 1~3. As a result, appropriate light sources shall be selected according to the breed of lettuce, functional material and the plant growth stages.