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적외선 화상처리 장치를 이용한 건조초기 목재 표면 온도 측정
이관영,강호양,이민경,Lee, Kwan-Young,Kang, Ho-Yang,Lee, Min-Kyung 한국가구학회 2006 한국가구학회지 Vol.17 No.3
Temperature of board surface was monitored during drying using an IR image measurement system. Boards were water-saturated and dried at the levels of four temperatures and three air velocities. At higher DB the surface temperature increased more steeply and level off period was significantly short. At the DB temperatures of 70, 80, $90^{\circ}C$ the period where the surface temperature was equivalent to WB temperature was constant regardless of air velocity while at $60^{\circ}C$ it decreased as air velocity increased. It was confirmed that a surface transfer coefficient increased with DB temperature. Variation of temperature profile on a wood surface increased with DB temperature and air velocity.
오존을 이용한 유기물 및 세균의 제거 특성에 관한 연구
이관영 ( Kwan-young Lee ),박상현 ( Sang-hyun Park ) 한국산업융합학회 2007 한국산업융합학회 논문집 Vol.10 No.1
The aim of this study is to measure the removal characteristics of organic matter and bacteria with the use of ozone to reduce the problems caused by bacteria and organic matter which appear in sea-water is summer season. When the total input of ozone was 1.4mg/ℓO3, the removal rate of bacteria and E-coli from sea-water proved to be 100%. With the same input of ozone, on the other hand, the removal rate of COD turned to be relatively low, 50%, which was to the fact that sea-water consists of salt matter which is a kind of COD matter. This result supports the idea that we can keep using ozone steadily in the future to remove organic matters and bacteria from sea-water because ozone destructs relatively less salt matter in sea-water. Also, the treatment effect rate of SS, turbidity and organic matters such as NH<sub>3</sub>-N, NO<sub>3</sub>-N etc, was very high. As a result, we assume that the treatment of organic matter in sea-water with ozone is very effective.
이관영 ( Kwan-young Lee ),정종대 ( Jong-dae Jung ) 한국산업융합학회 2006 한국산업융합학회 논문집 Vol.9 No.1
Constructing a long, linear structure such as a high-way may cause the break-up of the natural ecology by cutting off the trails of animals. We could observe 12 kinds of mammals, 49 kinds of birds and 10 kinds of amphibia and reptilia at the research area. With this research, we were so sure of the necessity of building ecological corridors to prevent the ecological break-up of wild animals that we studied the building and maintaining of 3 types of ecological corridors; tunnel types, over-bridge type and line type.