Development of High efficiency Food Waste Treatment System for Entering New and Renewable Energy Industry in Southeast Asia

Kwon,Ki-Tae,Lee,Woo-Sik,Kwon,Lee-Seung,Seong,Seung-Hwan,Kim,Young-Do,Kwon,Woo-Taeg 한국유통과학회 2019 KODISA ICBE (International Conference on Business Vol.2019 No.-

It is possible not only to treat high concentration organic matter such as food wastes but also to utilize food wastes as resources according to the bio-energy generation such as methane. The method of co-digestion of mixed wastewater mixed with organic wastes such as sewage sludge concentrated waters together with drinking wastewater is the most ideal method. Radiation not only has germicidal power in water treatment, but also is effective in decomposing degradable organic matter. Second chemical contamination problem is also solved because it does not use chemicals. Introduction of radiation pretreatment system to solve problems caused by mixing of waste water and organic waste resources. Biological electrochemical fusion system is used to remove the nutrients contained in the organic matter-removed mixture. Through the development of a system for treatment of high concentration wastewater, the processing efficiency is verified through the universal water treatment system for wastewater containing high concentration organic matter in addition to treatment of wastewater.

장기간 항갑상선제 투여 후 임의 중단 뒤 재복용시 발생한 무과립구증 1 예

김승만;김태영;박수영;배영환;서영경 정은주;김태균;권민정;박정현;이순희 인제대학교 2011 仁濟醫學 Vol.32 No.-

Agranulocytosis, one of the major side effects of antithyroid a gents, probably occurs in less than 0.25% of cases treated with antithyroid agents. It usually occurs within the first several weeks or months after the initiation of therapy, when drug dosage is higher. Most reported cases of agranulocytosis have occurred during the first 3 months of therapy. We describe here a rare case that did not experience the side effect for 6 years of antithyroid agent treatment but presented with agranulocytosis in one month after re-exposure. It suggests that the major side effect such as agranulocytosis can occur in patients who had undergone prior uneventful antithyroid drug therapy.

이륜차 무단변속기(CVT) 구동풀리의 시물레이션

권영웅,우영환,이종원,길성진 중앙대학교 생산공학연구소 1999 생산공학연구소 논문집 Vol.8 No.2

CVT 메카니즘은 공학적 분야에 많이 사용되고 있으며, 특히 CVT의 구동폴리느 중요한 역할을 한다. 본 연구에서는 이륜차의 CTV를 국산화 할 계획의 일환으로 구동폴리를 시뮬레이션하였다. 시뮬레이션한 결과느 구동폴리의 롤로 무게와 마찰 계수, 램프의 각변형을 통해 나온 수치르 장량화한 것이며, 이를 토대로 구동폴리의 각 요소들 즉, 롤러와 유동플랜지, 램프판 간의 상호관계를 규명하였다. CVT(Continuously Variable Transmission) mechanism has been used in many engineering applications. A driving pulley of CVT plays a vital role. In this study, computer simulation for a movable pulley was carried out for the purpose of producing a motorcycle CVT of Korean model. The effects of roller mass, friction coefficient, deformation of ramp plate on a given speed and torque during moving were quantified using the simulation results. Based on the simulation, relations between each component of driving pulley that consists of roller, movable flange and ramp plate etc. were investigated.

現代 住居空間의 計劃 方向 設定에 關한 硏究

權寧煥,鄭義容 영남이공대학 1979 論文集 Vol.8 No.-

To form our dwelling life conforming to contemporary times, we shall consider the following questions: 1) We should study the current trend and background of dwelling life in terms of historical and social aspects. 2) We ought to grasp living and space as a unity and understand the constant relation between them. 3) The variety of living space and value of life must be understood in respect to the constant relation between them. 4) We should explain symmetrical relation of life and space scientifically and rationally. With the above-mentioned facts considered, we should continously pursue a living atmosphere and space in volved in our past for the future and we shall continue diligently efforts of illuminating the interrelation ships in our modern life.

Yield of Rice Affected by Meteorological Elements in Yeosu Area of Korea

Kwon,Byung-Sun,Choi,Seong-Kyu,Shin,Jeong-Sik,Shin,Jong-Sup,Shin,Dong-Young,Hyun,Kyu-Hwan,Kuk,Yong-In,Park,Hee-Jin 한국자원식물학회 2003 Plant Resources Vol.6 No.2

This study was conducted to investigate the relationships between yearly variations of meteorological elements and yearly variations of productivity in rice. In addition, correlation coefficients among yield and yield components were used to find out the relationships between meteorological elements and productivity. Yearly variation of the mean air temperature in May was large with coefficients of variation(C.V.) of 25.0%, but the variation of the duration of sunshine in May were relative small. No. of panicles per hill and 1,000 grains wt. of brown rice were great with C.V. of 21.1, 19.7%, respectively, brown rice yield show more or less C.V. of 5.5% and milled rice show still less variation. Correlation coefficients between temperatures in period of cultivation from May and yield were positive correlations. Correlation Coefficients between precipitation in period of cultivation from Sep. to Oct. and yield are positive correlations. Correlation coefficients amount the panicle length, no. of panicles, no. of spikelets, ratio of ripened grains, 1,000 grains wt. of brown rice, milled rice yield, brown rice yield and milled rice yield were positively significant at the level of 1 %, respectively.

Relationship between Meteorological Elements and Yield of Hot Pepper in Yeosu Area of Korea

Kwon,Byung-Sun,Choi,Seong-Kyu,Shin,Jeong-Sik,Shin,Jong-Sup,Shin,Dong-Young,Hwan,Kyu-Hyun,Kim,Hak-Jin,Kuk,Yong-In,Choi,Kyong-Ju 한국자원식물학회 2003 Plant Resources Vol.6 No.1

This study was conducted to investigate the relationships between yearly variations of meteorological elements and yearly variations of productivity in hot pepper. In addition, correlation coefficients among the yields and yield components were used to find out the relationships between meteorological elements and productivity. Yearly variation of the mean air temperature in May and July showed large with coefficients of variation(C.V.) of 25.0,8.9%, respectively, but the variation of the duration of sunshine in May were relative small. Yield and plant height was greatly with C.V. of 7.14,11.6%, respectively, diameter of fruit showed more or less C.V. of 2.28% and length of fruit showed less variation. Correlation coefficients between maximum temperature in period of cultivation from May and yield are positively significant at the level of 1 %. Correlation Coefficients between precipitation in period of cultivation from May to August and yield are negative significant at the level of 5 and 1 %, respectively. Correlation coefficients amount the plant height, length of fruit, diameter of fruit per plant, and seed yield were positively significant at the level of 1 %, respectively.

브레이징법에 의한 TiA1 금속간 화합물의 접합에 관한 연구

권영순,권용재,김지순,김환태 울산대학교 1995 공학연구논문집 Vol.26 No.2

본 연구에서는 Al을 삽입금속으로 사용하여 브레이징법으로 접합한 TiAl 금속간화�물의 접합특성에 대하여 조사하였다. 삽입금속인 Al과 모재인 TiAl과의 반응에 의해 접합계면에서는 반응생성층으로서 경도가 모재보다 높고 취약한 TiAl₃가 형성되었으며, 접합온도가 600℃로 낮았거나 가열속도가 30K/min으로 너무 빠를 경우에는 반응생성층내에 void와 미소균열과 같은 접합결함이 존재하였다. 이와 같은 접합결함들은 700℃보다 높은 온도에서 접합하거나 가열속도를 10K/min보다 낮게 하여 접합한 경우에는 나타나지 않았다. 한편 접합체의 기계적 성질의 향상을 위하여 접합 후 Ar가스 분위기에서 열처리를 행한결과, 1300℃에서 3시간 동안 열처리를 했을 경우 모재와의 조성의 균일화가 완전히 이루어지지 않았으며 또한 반응생성층의 형태도 변화가 없었다. 그러나 1350℃에서 3시간 동안 열처리한 결과 조성의 균일화와 함께 반응생성층은 ??단상으로 변하였으며, 반응생성층의 미소경도는 층상조직인 모재의 미소경도보다 조금 낮게 나타났다. In this study, Joining properties of TiAl intermetallic compound bonded by brazing method using an insert metal of Al foil were investigated. A brittle reaction product layer. TiAl₃was formed at the joining interface and its microhardness was very higher than that of base metal. When the specimen was bonded at low temperature of 600℃ or with high heating rate of 30K/min respectively, joining defects like void and micro-crack were formed in the in the inside of reaction layer. These joining defects were disapeared when the speciment had been bonded at higher temperature than 700℃ or with lower heating rate than 10K/min. For the purpose of improving the mechanical properties of joints, effects of the post-bond heat treatment in Ar gas atmosphere on microstructure and hardness distribution of the bonded speciment were studied. When the joint was geat-treated at 1300℃ for 3 hr, homogenization of the compositions in the joining interface region was not achieved completely and morpholgy of the reaction product layer was still remained without morphological change. However, when the joint was heat-treated at 1350℃ for 3 hr, homogenization of the compositions in the joining interface region was achieved and the reaction product layer changed to γ single phase. And micro-vickers hardness of reaction layer region was slightly lower than that of base metal.

單調增加荷重을 받는 平面 트러스의 複合 非線型 擧動에 關한 硏究

權寧煥,金和中,金明璇,魯德煥 경북대학교 산업기술연구소 1990 産業技術硏究誌 Vol.18 No.-

The object of this study is that develop computer program as being derive simple formula considering complex (material and geometric) nonlinear, and select the most useful truss in efficiency with the analysis Howe truss, Fink truss, Pratt truss and Warren truss. The complex nonlinear behavior is considered in this paper, so is acquired following results. 1. We developed program that could analyze complex nonlinear of plane truss. 2. In view of the results analyzied the numerical analysis example of plane truss, When Howe truss, Fink truss, Pratt truss, and Warren truss are equal to weight and span, and the same load is loaded. Among the trusses of same weight, Warren truss is the most useful in efficiency. And When height of warren truss is changed, the lower height of truss, the more useful in efficiency

통일운동의 활성화를 위한 민간단체의 역할

권영호,김일환 제주대학교 동아시아연구소 1998 東아시아硏究論叢 Vol.9 No.-

소득작물 전후작지 적응 극단기성 벼 ‘중모 1032’

손영보,이종희,조준현,이지윤,오성환,송유천,박동수,박노봉,김상열,여운상,남민희,권영업 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.2