장기 모니터링을 통한 고랭지 밭 지역의 비점오염물질 유출특성

이수인,신재영,신민환,주소희,서지연,박운지,이재영,최중대,Lee, Su In,Shin, Jae Young,Shin, Min Hwan,Ju, So-Hui,Seo, Ji Yeon,Park, Woon Ji,Lee, Jae Young,Choi, Joong Dae 한국농공학회 2017 한국농공학회논문집 Vol.59 No.4

In this research, I performed rainfall monitoring by selecting the spot which can represent high altitude cool farm region in recent 3 years, and tried to understand the characteristic of outflow of non-point pollutants coming from high altitude cool farm region. As a result, it was shown that reducing rainfall runoff in highland farm area can reduce non-point pollution load and should consider priority to reduce runoff through management resources when selecting abatement method. Additionally, it is judged that reduction method related to base run-off should be selected by performing research on material motion of TN.

축산농가에서 배출되는 비점오염 물질이 소규모 유역에 미치는 영향

이수인,신민환,전제홍,박병기,이지민,원철희,최중대,Lee, Su In,Shin, Min Hwan,Jeon, Je Hong,Park, Byeong Ky,Lee, Ji Min,Won, Chul Hee,Choi, Joong Dae 한국농공학회 2015 한국농공학회논문집 Vol.57 No.2

The objective of this paper was to quantitatively analyze the effect of concentrated animal feeding operations (CAFO) NPS pollution on a small watershed water quality. Monitoring was conducted from March to October, 2013. Monthly flow rate and selected water quality at each monitoring site were measured during dry days. Rainy day monitoring also was conducted. Modeling was conducted to evaluate the effect of CAFO NPS pollution on the water quality at the watershed outlet. The highest and mean concentration of selected water quality indices during rainy days were higher than those in dry days in general. The highest TN concentration measured at the CAFP pollution discharge point was 237.831 mg/L. The results revealed that the CAFO NPS pollution sources could be equally blamed for the water quality degradation of the stream. However, the effect of the NPS pollution from CAFOs seemed not to be very influential to the watershed water quality at the outlet. SWAT modeling revealed that the TN load was reduced by 18.95 %, 23.39 % and 30.53 % at the watershed outlet if the TN load at the CAFO NPS pollution discharge point reduced by 20 %, 40 % and 60 %, respectively. It was thought that the natural attenuation processes played an important role. The modeling was based only on the assumption of the load reduction and not verified by the monitored data. Therefore, it was suggested that a long term monitoring studies for the evaluation of the impact of CAFO NPS pollution on the watershed water quality be conducted.

다중 체온 감지용 지능형 카메라 개발

이수인,김윤수,석종원,Lee, Su-In,Kim, Yun-Su,Seok, Jong-Won 한국전기전자학회 2022 전기전자학회논문지 Vol.26 No.3

In this paper, we propose an intelligent camera for multiple body temperature detection. The proposed camera is composed of optical(4056*3040) and thermal(640*480), which detects abnormal symptoms by analyzing a person's facial expression and body temperature from the acquired image. The optical and thermal imaging cameras are operated simultaneously and detect an object in the optical image, in which the facial region and expression analysis are calculated from the object. Additionally, the calculated coordinate values from the optical image facial region are applied to the thermal image, also the maximum temperature is measured from the region and displayed on the screen. Abnormal symptom detection is determined by using the analyzed three facial expressions(neutral, happy, sadness) and body temperature values. In order to evaluate the performance of the proposed camera, the optical image processing part is tested on Caltech, WIDER FACE, and CK+ datasets for three algorithms(object detection, facial region detection, and expression analysis). Experimental results have shown 91%, 91%, and 84% accuracy scores each.

치아염소산염용액이 치주낭 상피조직 및 치은창상 치유에 미치는 영향에 관한 전자현미경적 연구

이수인,Lee, Su-In 대한치주과학회 1983 Journal of Periodontal & Implant Science Vol.13 No.1

무경운 밭에서의 비점오염물질 저감효과 분석

이수인,원철희,신민환,신재영,전제홍,최중대,Lee, Su In,Won, Chul Hee,Shin, Min Hwan,Shin, Jae Young,Jeon, Je Hong,Choi, Joong Dae 한국농공학회 2015 한국농공학회논문집 Vol.57 No.4

Various Best Management Practices (BMPs) have been suggested to reduce soil erosion and non point source (NPS) pollutant loads from agricultural fields. However, very little research regarding water quality improvement with No-till (NT) has been performed in Korea. Thus, effects of NT were investigated in this study. The objective of the study was to investigate the effect of NT on the surface runoff and sediment discharge in a field. Eight experimental plots of $5{\times}30m$ in size and 3 % or 8 % in slope prepared on gravelly sandy loam soil were treated with Conventional-till (CT) and NT. Runoff and NPS pollution discharge were monitored and compared the treatments. The amounts of rainfall from 13 monitored events ranged from 28.7 mm to 503.5 mm. The runoff amount was reduced by 17.6~59.2 % in 3 % NT and 29.6~53.2 % in 8 % NT. The average NPS pollution loads of the 3 % NT plots and 8 % NT plot were reduced about 45.1~89.2 % and 47.7~98.0 % compared to those of the CT plots, respectively. This research revealed that NT can reduce the NPS pollution loads substantially as well as increase the crop yield. Runoff and NPS pollution loads reduction by NT method could be contribute to improve the water quality of streams in agricultural regions.

TV드라마에 나타난 여성 헤어스타일의 의미작용에 관한 기호학적 분석 -MBC방송사 2005년~2007년 작품을 중심으로-

이수인 ( Su In Lee ) 한국미용학회 2007 한국미용학회지 Vol.13 No.3

This study focuses on semiotic significance of hairstyle and characterization, showed in TV dramas for 2005~2007(MBC broadcating station).The theoretical grounds of the analysis are 1) the view of Mythological symbols by Bart, 2) eight character category by Jung. The result so far is that 1) hairstyle in dramas effect eight character category of Jung and support Bart`s Mythological sign model. The hairstyle shows two operational significances: symbolic character reproduction and culture, in performing appropriate parts in TV dramas.

컬렉션에 나타난 현대 헤어스타일의 포스트모더니즘 표현 양상(1)

이수인 ( Su In Lee ),박길순 ( Kil Soon Park ) 복식문화학회 2006 복식문화연구 Vol.14 No.2

현대 남성 헤어스타일에 나타난 다원성(多元性)과 다양성(多樣性)

이수인 ( Su In Lee ) 한국미용학회 2008 한국미용학회지 Vol.14 No.4

The purposes of this study were to examine pluralism and multiplicity in contemporary man hair style in street-fashion between 2006~2008 and develope frame work and a theoretical model for postmodernism. The results were as following. 1. Postmodernism pluralism in man hair style was analyzed disoriginality, decenterization, inter-text. 2. Postmodernism multiplicity was forms, textures, decorations. 3. Man hair style expressed the socity and culture of the era.

한국 청소년 하위문화에 나타난 TV 스타 패션에 관한 연구 - 1990 ~ 1999 년 헤어스타일을 중심으로 -

이수인(Su In Lee),이주연(Ju Yeon Lee) 한국미용학회 2000 한국미용학회지 Vol.6 No.3

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한국형 틸팅 열차의 성능 향상을 위한 현가장치 최적화

이수인(Lee Su-In),박태원(Park Tae-Won),윤지원(Yoon Ji-Won) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.5월

The korean tilting train can increase the whole operating speed at a curved railroad, reducing the lateral acceleration with the tilting mechanism unlike the train developed before. However, increasing operating speed on the curved section, may cause safety problem of train travel. In general, a suspension system has important effects on driving safety. Therefore, optimization of suspension system is necessary to secure the safety of the tilting train. In this study, the tilting train suspension system has been optimized using Design of Experiments (DOE). First, the design parameter is selected using sensitivity analysis. A lateral acceleration which affects on the driving safety is chosen as the objective function. And the Design of Experiments (DOE) is used for optimization. As a result, new design parameters which show better performance than the existing suspension system has been suggested.