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경제성 관련 계육 도체 결함과 축산물등급사에 의한 품질 A등급의 상관관계
최준호,이재청,조철훈,Choe, Jun-Ho,Lee, Jae-Cheong,Jo, Cheor-Un 한국축산식품학회 2009 한국축산식품학회지 Vol.29 No.4
To investigate the relationship between the carcass defects considered by a meat grader and quality grade A, a total of 59,700 broiler carcasses, which were reared from September 1, 2007 to August 31, 2008 and randomly selected from 597 broiler farms with 100 broilers in each farm, were graded by a meat grader using the Korean meat grading system. The average slaughter weight of the broilers increased at the 31- to 33-d age but decreased after the 37-d age. The average daily gain to grade A ratio of the broilers was highest in autumn, and the bruises, flesh blemishes, and abnormalities of the carcasses were found to have been most frequent in winter (p<0.05). The number of economical defects (EDs) increased with the increase in the slaughter age, and the correlation coefficients of the EDs and grade A were -0.88, -0.48, and -0.12 in terms of the conformation, exposed flesh/cuts/tears, and skin discolorations of the carcasses, respectively. The correlation coefficients of the non-economical defects (NEDs) and the grade A of the broiler carcasses were -0.16, -0.22, and -0.32 in terms of the feathers, alien substances, and carcass treatment, respectively. The total number of defects (EDs + NEDs) and the grade A were highly correlated (-0.93), and in particular, the correlation between the grade A and the EDs was -0.91. It can be deemed that the grade A from a meat grader is highly correlated with the EDs. Therefore, the results suggest that broiler carcass grade evaluation using a meat grading system can provide direct information on profits in the market. The resulting carcass grade of broilers can also provide the information needed to decide on a proper incentive for a farm that has attained a good quality grade.
복합 한약재 추출물 첨가가 돈육 패티의 저온저장 중 항산화 및 항균성에 미치는 영향
최준호,장애라,이봉덕,류현덕,송현파,조철훈,Choe, Jun-Ho,Jang, Ae-Ra,Lee, Bong-Deok,Liu, Xian-De,Song, Hyun-Pa,Jo, Cheor-Un 한국축산식품학회 2008 한국축산식품학회지 Vol.28 No.2
The antioxidant and antimicrobial activities of pork patties supplemented with medicinal herb extract mix were investigated. The medicinal herb extract powder was mixed at a ratio of 48.5:48.5:3.0 for Morus alba L, Lonicera flos, and Coptis chinensis, respectively. The pork was prepared and supplemented with medicinal herb extract mix (0, 0.5, 1, or 2%) and the antioxidant and antimicrobial activities were tested during storage at $4^{\circ}C$. The pH value decreased during cold storage at $4^{\circ}C$ for allsamples, however the pH of samples supplemented with herb extract mix rapidly decreased by days 5 and 10 ($p{\leq}0.05$). The total phenol content in the pork patties with herb extract mix was higher than in the control patties. The ABTS+ radical scavenging activities increased with increasing concentrations of herb extract mix from 0.5% to 2%. In addition, pork patties supplemented with herb extract mix showed an approximately 1 decimal reduction in total aerobic counts. Therefore, the addition of herb extract mix into pork patties increased the antioxidant activity and slightly improved the antimicrobial activity of pork patties during cold storage. However, the levels of added medicinal herb extract mix should be considered prior to its use in order to maintain proper sensory acceptance.
네트워크상에서 바이러스 차단을 위한 방화벽 시스템의 설계 및 구현
최준호,감판규,Choe, Jun-Ho,Gam, Pan-Gyu 한국정보처리학회 2001 정보처리학회논문지 C : 정보통신,정보보안 Vol.8 No.4
컴퓨터 시스템의 데이터 파괴 및 시스템 정지 등과 같은 악의적인 일을 수행하는 컴퓨터 바이러스의 종류 및 피해가 증가되고 있으며, 이에 따른 바이러스 검사 및 치료하는 백신과 같은 프로그램을 사용하며, 또한 클라이언트용으로 Windows 시스템에서 주로 사용되어 오고 있다. 그리고 Linux와 같은 Unix계열의 시스템에서는 파일 시스템에 파일을 저장하고 난 후 백신으로 치료하는 형태를 가지고 있어 바이러스 확산에 능동적으로 대처하지 못하고 있다. 본 논문에서는 네트워크를 통해 유입되는 데이터에 대해 바이러스 감염 여부를 실시간으로 탐지하여 그 결과를 웹상에 알려주는 방화벽 시스템을 설계 및 구현하였다. 이 시스템은 기존 방화벽 보안 정책을 유지하면서 네트워크에서 유입되는 데이터에 대해 바이러스를 실시간으로 탐지해낸다. 방화벽 시스템에 대해 바이러스 탐지 모듈을 추가한 결과, 기존보다 평균 8%정도의 시간적 지연이 있음을 확인하였다.
CFD와 입자추적기법을 이용한 카펫용 Upright 청소기의 집진효율 해석
최준호(Choe Jun-Ho),리진철(Li Zhen-Zhe),허광수(Heo Kwang-Su),장인형(Jang In-Hyeong),설승윤(Seol Seung-Yun) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11
The drawbacks of carpet upright cleaner are low cleaning efficiency and noise. In order to estimate the cleaning efficiency of carpet upright cleaner, CFD and Particle Tracking Method are used. Using the developed method, the effect of rotational speed and wall shape was investigated. Through the case studies, it was found out that the cleaning efficiency of carpet upright cleaner can be improved by adjusting rotational speed and wall shape. The analysis method developed in this study shows the possibility to improve the cleaning efficiency of carpet upright cleaner by adjusting the interrelated design variables.
崔俊鎬(Choe, Jun-ho) 한국일본문화학회 2015 日本文化學報 Vol.0 No.67
Toshiyuki Kajiyama was born and raised in colonial Chosun as a second generation under colonization. He started creating his work after he returned to Hiroshima postwar, and this led him to publish “The Clan Records” set during colonial Korea criticizing the reformation policy of names to Japanese names led by the Japanese Government General of Korea. Various kinds of people appear in “The Clan Records” based on colonial Chosun. In this thesis, they are classified as soldiers withholding military force in colonial Chosun, administration governing by the Japanese bureaucrats, and the colonized people of Chosun, and “I” with overall perspective in the story. Analysis of the text in each category first, emphasizes the injustice of Chosun colonization by describing Japanese soldiers and bureaucrats with criticism. Second, emphasis is made on the resistant colonized people of Chosun by describing them as active and not only suffering persecution from the reformation policy of names to Japanese names. Lastly, Japanese who discriminated and despised the people of Chosun and speculated knowing the injustice of colonization are depicted in the description of “I.” Judging from an overall perspective, it can be interpreted that throughout the entire plot, Toshiyuki Kajiyama wanted to depict how he would have acted if he were in the same situation as the protagonist. In other words, the author is overlapping his ideality of colonizer Japanese by leaving in another virtuous Japanese over the binomial oppositional structure between the bad Japanese and the poor people of Chosun.