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오관영 ( Kwan Young Oh ),정형섭 ( Hyung Sup Jung ),이광재 ( Kwang Jae Lee ),이하성 ( Ha Seong Lee ) 대한원격탐사학회 2014 大韓遠隔探査學會誌 Vol.30 No.1
본 연구의 목적은 최신 상용 소프트웨어에서 지원하고 있는 영상 모자이크 기법을 비교 분석하고, 제작된 모자이크 영상들의 정량적인 품질평가 방법을 제시하는 것이다. 상대적으로 뛰어난 성능을 나타내는 것으로 알려져 있는 모자이크 기법을 계절적 특성이 서로 다른 7장의 KOMPSAT-2 위성영상에 적용하였고, 각각의 결과를 시각적으로 비교 분석하였다. 또한, 제작된 모자이크 영상의 성능을 비교 할 수 있는 정량적 평가지수를 제안하고, 시각적 결과와 비교 검증을 수행함으로써 제안된 품질평가 지수의 적용 가능성을 제시하였다. The purpose of this paper is to provide a compact overview of the state-of-art image mosaic algorithms in commercial softwares and to propose objective assessment method of that. Among them, several algorithms, widely used and high quality, result in the mosaic image by applying to seven different kinds of seasons of KOMPSAT-2 images and then consequently each result is analyzed visually. Moreover, quality index is suggested to assess the similarity with colors regarding adjacency images and then it is performed by comparing and analyzing the visual and quantitative results. Consequently, we found out the suggested quality index is feasible.
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.
오존을 이용한 수조속의 오염물질 제거특성에 관한 실험적 연구
이관영(Kwan-young Lee),안승섭(Seung-seop Ahn),박상현(Sang-hyun Park) 한국산업융합학회 2002 한국산업융합학회 논문집 Vol.5 No.1
In this study, the initial number of bacteria before ozone sterilizing shows 290 per 1 ㎖ in HUN 1 and HUN 2 equally, but the removal rate shows more than 50% in HUN 1, and 100% in HUN 2 respectively when ozone injection amount is 0.28㎎/ℓ. It is regarded as a satisfactory result that E-coli concentration without ozone contact is 890, rapid removal effect of E-coli is observed in 0.28㎎/ℓ of ozone, and E-coli is removed perfectly in 0.84㎎/ℓ of ozone. It is thought that an excellent efficiency is obtained for vibrio alginolyticus because the initial number of bacteria before ozone contact is positive, but it is altered to negative after ozone contact. CODcr shows the tendency which is somewhat reduced as the ozone injection is increased, but the general effect is appeared not so much, and it is thought that the tendency is caused by the reason that sea water contains much salt which is estimated as a component of CODcr, therefore it is regarded that ozone contact has not an important effect on salinity. It is thought that the frequency of changing salt water in the fish preserve of a sliced raw fish restaurant can be reduced to under the standard because NTU of 7 days after sea water injection is 0.70 in the experiment of turbidity, hut more than 50% of turbidity removal efficiency is appeared at 0.28 ㎎/ℓ of ozone injection, and it shows 70% at 0.84 ㎎/ℓ of ozone injection in RUN 1 and HUN 2 commonly.<br/> <br/>
이관영(Lee, Kwan-Young),김상문(Kim, Sang-Moon),박은심(Park, Eun-Shim),박재은(Park, Jae-Eun),김근형(Kim, Geun-Hyung) 한국산학기술학회 2014 한국산학기술학회논문지 Vol.15 No.9
무기체계에서의 소프트웨어에 대한 비중이 커짐에 따라, 소프트웨어 ILS(Integrated Logistics Support)에 대한 관심 이 커지고 있다. 그러나 기존 무기체계에서 ILS 개발은 하드웨어 중심으로 적용하고 있어 소프트웨어에 그대로 적용하기 힘든 실정이다. 본 논문은 소프트웨어 ILS의 실무 적용 어려움이 무엇인지 원인을 파악하고 문제점을 분석하기 위해 국내/외 규정 및 사례들을 통해 현 실태를 파악하였다. 또한, 소프트웨어의 유지보수 특성을 고려하여 소프트웨어와 하드웨어 ILS의 차이점을 검토하고, 소프트웨어 ILS 요소개발 범위 설정을 통해 국내에 적용이 가능한 소프트웨어 ILS 개발방안을 제안하였 다. 이는 소프트웨어 ILS 개발을 위한 구체적인 실무 적용방안을 수립하는 데 도움이 될 것으로 기대한다. The increasing importance of software has highlighted the need for the proper application of software ILS. On the other hand, the development of ILS has been somewhat limited to the area of hardware development. Therefore, this study examined the potential difficulties in applying software ILS to practical uses, and analyzed the drawbacks by reporting several domestic or foreign regulation cases. In addition, the differences between hardware and software ILS were examined by considering their characteristics of maintenance. Eventually, by establishing the proper range, this study proposes a development plan that is suitable for domestic weapon systems. The proposed research is expected to be helpful for offering specific plans for designing software ILS.
리기테다소나무와 백합나무(yellow poplar)의 열기건조스케쥴 개발
이관영(Kwan Young Lee),강호양(Ho Yang Kang),정성호(Sung Ho Jung),정두진(Doo Jin Jung) 한국가구학회 2000 한국가구학회지 Vol.11 No.2
Pinus rigida x taeda and Liriodendron tulipifera have been planted in this country for about 20 years. They are known as a relatively fast-grown and useful species. The physical properties such as green moisture contents, specific gravities and dimensional shrinkages were examined with natively grown timbers. The kiln-dry schedules were developed with 30mm thick boards by using an oven-fast-drying method. In both species the green MC's of sapwoods were higher than those of heartwoods, but their discrepancies were small. The green specific gravities of Pinus rigida X taeda and Liriodendron tulipifera were 0.48 and 0.41-0.42, respectively. The developed kiln-dry schedules were proven to minimize drying defects for the boards of 30mm thickness and various width.<br/> keywords: Pinus rigida x taeda, Liriodendron tulipifera, kiln-dry schedule, oven-fast-drying method,<br/>