鮟鱇網 漁具漁法의 改良에 關한 硏究 Ⅴ : 展開帆의 性能

洪聖根,宋之浩,趙鳳坤,朴鍾洙 군산대학교 1981 群山水産專門大學 硏究報告 Vol.15 No.1

We have been developed improved stow net and operated with it in the field. In order to study on the efficiency of otter sail of the improved stow net, we made a model experiment in a circular water tank. The findings are as follows. 1.In proportion to increase water velocity, the height of canvas o.s get lower, the decided fromula is obtained as h(%) = 77.7v-0.087 2.Resistance of otter sail is higher than board type. The hydrodynamic pressure is not perpendicular to the o.s, but inclination backward. 3.The decided formula of developing force, and resistance of otter sail is obtained as table 3. 4.Developing force is 15 to 25% of all resistance of fishing gear, resistance of otter sail is 12-18% and hydrodynamic efficiency is about 1.35. 5.Center of hydrodynamic pressure is 0.38 from the fore edge of otter sail and it may use Helmholtz's formula as it is. 6.The most effective angle of attack is about 26˚, the shearing coefficient at the time is 0.7 and the drag coefficient is 0.5. 7.To increase or decrease the buoyancy and weight of otter sail have not influenced distinctly. 8.Aspect ratio is the most effective in 2.5. 9.The joining position of fore bridles have not influenced on the efficiency of otter sail.

대기오염이 기관지 천식의 악화에 미치는 영향

류지원,어수택,김기업,이영목,김양기,홍성아,전창균 순천향의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.1

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국내에서 분리된 Extended-Spectrum β-Lactamase 생성 Escherichia coli와 Klebsiella pneumoniae의 빈도 및 유형

홍성근,김선주,정성훈,장철훈,조성란,안지영,신종희,이혜수,송원근,어영,염종화,용동은,이경원,정윤섭 대한임상미샐물학회 2003 Annals of clinical microbiology Vol.6 No.2

중·고등학교 급식종사자들의 위생관련 업무 수행도 분석

홍완수,윤지영 한국조리과학회 2003 한국식품조리과학회지 Vol.19 No.4

The purpose of this study was to develop methods for foodservice employees to perform by measuring their levels of sanitation and hygiene practices. The employees' sanitation and hygiene competency list for school foodservice was developed on the basis of the job standardization. The competency list was divided into three parts; (1) before starting the work, (2) during the work and (3) after the work. The levels of the employees' sanitation and hygiene practices were evaluated by dietitians and by the employees themselves. Most schools had conventional foodservice systems (83.4%), which were operated by contract management (94.8%). It was found that the highest practice level related to sanitation and hygiene before starting work, with the lowest levels observed after work. The item related to the cleaning and sanitizing of dishes had the lowest practice level score. Employees perceived their sanitation and hygiene practice after work to be worse than before starting and during work. The items of "Clean and sanitize all large stationary equipment after every use, and record equipment monitoring chart" and "Do not clean dishes and utensils in production area" had the lowest scores by employees. The scores of the employees were similar to the perception of the dietitians.

Bacillus subtilis SS103으로 제조한 된장의 품질 특성 및 Angiotensin 전환효소 저해 활성

홍지수,박정륭,전정례,차명화,김진,김정희 동아시아식생활학회 2004 동아시아식생활학회지 Vol.14 No.4

Three different doengjang(fermented soybean paste) were prepared by using B. subtilis SS103 with high angiotensin converting enzyme(ACE) inhibitory activity, Asp. oryzae and mixed culture of two organisms, respectively. Quality characteristics and the inhibitory activity were compared. β-Amylase activity rapidly increased during 30 days of fermentation, but lower activity was found in doenjang prepared with B. subtilis. However, α-Galactosidase activity decreased for 15 days of fermentation and little activity was observed after that fermentation period. Protease production tended to increase during the fermentation. High protease activity was found only in doengjang prepared with Asp. oryzae, but the doengjang prepared with B. subtilis SS103 showed very low activity. Total isoflavone content at 90 day fermentation was the highest in doengjang prepared with mixture of Asp. oryzae and B. subtilis. ACE inhibitory activity increased during the fermentation period. The highest activity was found in doengjang made with mixture of Asp. oryzae and B. subtilis. Sensory evaluation on doengjang itself and its soup indicated that doengjang made with mixture of Asp. oryzae and B. subtilis showed higher acceptability on taste, flavor and color than those prepared with only Asp. oryzae or B. subtilis, respectively.

학생청소년의 불안성향과 문제행동 유형간의 상관분석

김헌수,이재우,나철,김영돈,김민호,김은희,권지란,박광식,이길홍,민병근 중앙대학교 의과대학 의과학연구소 1987 中央醫大誌 Vol.12 No.4

The purpose of the present study was to examine the relationship between their problem behavioral pattern and anxious trends among Korean student adolescent. Zung's measurement of anxiety level undergone through used of the self-rating anxiety scale. the data were collected through the questionaire survey which was conducted on Dec.1, 1983. Subjects served for this atudy consisted of 1,404 syudents in Korea, randomly sampled from Korean student population by means of census method. The data were analysed by CDC-174 computer of KAIST, using SPSS pogram. Statistical methods empoyed were χ^2 test and Eta measures. the results of this study were as follows. 1. It showed that students psychological anxious trends had greatest significant correlation with adolescent student's problem brhavioral pattern, but the cardiovascular, respiratory, gastrointestional and genitourinary anxious trends has not significantly related with student's problem behavioral pattern. 2. Students group with undersocialized aggressive, undersocialized nonaggressive,undersocialized school-norm avoidant, or socialized nonaggressive behavioral patterns were less anxious, whereas those with socialized latent aggressive, socialized sexual, or socialized modellong behavioral patterns were higher anxious.

The Comedians : Brown의 비극적 인식을 통한 희망적 비젼

여도수,홍지영 공주영상정보대학 2001 논문집 Vol.8 No.-

희비극은 회의적이고 부조리한 현대삶과 현대인을 그려내기에 가장 적절한 장르로서, 정치적 사회적 종교적 이데올로기적 위기 상황에 빠진 현대의 인간 군상들의 모습이 희극과 비극적 요소가 뒤엉켜 씁쓸한 페이소스를 자아내는 극이다. Greene은 이러한 현대에 대한 희비극적 인식을 The Comedians에 적용하여 사회적 정치적으로 고통스럽고 불행한 배경에서 Brown이라는 1인칭 화자의 주인공의 경박한 희극성과 공허함 그리고 비연루가 주변 인물들의 진지한 비극적인 삶과 상치되면서 겪게 되는 주인공의 내적 갈등과 비극적 인식을 보여주고 있다. 여기서 일반적인 희비극 작가와 Greene의 차이가 있다면 일반적인 희비극의 결말이나 전달하는 메시지는 문제의 고발과 비판을 중심으로 다소 우울한 그림자를 드리우지만, Greene은 희비극적 패턴을 이용하되 역설적으로 독자에게 Brown이 장차 방관자의 삶에서 벗어나 보다 진지하게 참여의 주인공으로 나아갈 수 있다는 희망적 비젼을 제시함과 동시에, 이기심과 무책임이라는 정신적 수면에 빠져 있는 현대인들의 정신적 각성을 요구하고 있다. 그의 희망의 메시지는 그의 다음 소설 The Honorary Consul로 이어진다. 요컨대 Greene은 각각의 개인의 위치에서 나아갈 바를 밝히고 있는데 부조리한 현실 세계에서 인식의 각성은 있으되 행동의 부재로 정신적 안이함에 빠져 있는 현대인들의 문제점을 지적하고 참여의 인식과 다른 이들에 대한 관심과 사랑을 바탕으로 하는 인간애를 통하여 현대인에게 구원의 가능성을 제시하고 있다.

AWRR 셀 스케쥴링 알고리즘

신승수,신동화,지홍일,최승권,조용환 충북대학교 산업과학기술연구소 2002 산업과학기술연구 논문집 Vol.16 No.1

The Binary Scheduling Wheel(BSW) algorithm was proposed to carry on manage buffer efficiently at implementing of WRR scheduler. But, BSW algorithm cause serous performance degradation of cell delay and maximum queue length because it allocates more weight than the weight allocated actually in VC and could not serve cell if the VC queue is empty. In this paper, we propose new BSW of the old BSW structure. Also, we develop a cell scheduling algorithm which is suitable for the new BSW structure. The proposed BSW structure and the developed algorithm are capable of maintaining the allocated weight of each VC correctly, and decrease average cell delay and average buffer length by serving other VC cell when the selected VC queue is empty, and increase cell service ratio as a whole. The evaluation results show that the proposed structure can implement WRR algorithm more efficiently than the old BSW.

Benzo(a) pyrene에 의해 유도된 간장해에 미치는 황련 수침액의 영향

윤수홍,하헌,서민지 한국환경독성학회 1993 환경독성보건학회지 Vol.8 No.1

The present study was undertaken to find a protective effect of Coptis Rhizoma Extract on liver injury induced by benzo (a)pyrene in rats. This crude drug significantly suppressed the increase of several biochemical parameters such as transaminase, lactate dehydrogenase and alkaline phosphatase in serum and liver and total cholesterol. But there were little changes in elevated serum phospholipid level. The results suggested that Coptis Rhizoma prevent bezo (a)pyrene-induced hepatic injury.

재료에 따른 알루미나 내화물 Matrix의 소결특성과 고온 Bending에 미치는 영향

배지수,이길홍 조선대학교 생산기술연구소 2006 生産技術硏究 Vol.28 No.2

The results of test by adjusting various raw materials and composition conditions for the evaluation of the bending characteristics of AluminaUmullite refractories are as the follows. 1) We have confirmed that the sintering was carried out relatively well even at the temperature of 1550℃ and composition reaction of mullite was well accomplished when we used Kaolin and Clay as the raw materials of matrix but the sintehng temperature must have been over 1650℃ when we used fine powder of silica and silica fume. 2) Matrix specimen that has used silica as raw matehal was poor in sintering at the temperature less than 1650℃ and composition reaction of mullite was also indicated as low and mullite composition was not generated at the temperature of 1450 ℃. Silica fume with relatively more fine powder showed similar feature but the level of sintehng and mullite was higher. 3) We could confirm, through the results of measuring the bending characteristics of alumina-mullite refractohes at high temperature by differentiating raw materials and supplies of the usage of matrix, that fine powder of silica used as raw materials and supplies showed good characteristics of bending at high temperature and we believe this is because high temperature liquefied materials generated by the impact of impurities contained in raw materials and supplies are greatly affecting the high temperature bending.