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도시침수 모의 기술 국내 연구동향 리뷰: 2001-2022
이승수,김보미,최현진,노성진,Lee, Seungsoo,Kim, Bomi,Choi, Hyeonjin,Noh, Seong Jin 한국수자원학회 2022 한국수자원학회논문집 Vol.55 No.10
In this study, a state-of-the-art review on urban inundation simulation technology was presented summarizing major achievements and limitations, and future research recommendations and challenges. More than 160 papers published in major domestic academic journals since the 2000s were analyzed. After analyzing the core themes and contents of the papers, the status of technological development was reviewed according to simulation methodologies such as physically-based and data-driven approaches. In addition, research trends for application purposes and advances in overseas and related fields were analyzed. Since more than 60% of urban inundation research used Storm Water Management Model (SWMM), developing new modeling techniques for detailed physical processes of dual drainage was encouraged. Data-based approaches have become a new status quo in urban inundation modeling. However, given that hydrological extreme data is rare, balanced research development of data and physically-based approaches was recommended. Urban inundation analysis technology, actively combined with new technologies in other fields such as artificial intelligence, IoT, and metaverse, would require continuous support from society and holistic approaches to solve challenges from climate risk and reduce disaster damage.
장동균 ( Donggune Chang ),최현진 ( Hyeonjin Choi ),김희선 ( Heesun Kim ),차승현 ( Seunghyun Cha ),이은환 ( Eunwhan Lee ) 경희대학교 경영연구원 2015 의료경영학연구 Vol.9 No.3
This study aims to estimate the economic cost due to at opic dermatitis in Korea. The national patient sample data (NPS) of Health Insurance Review and Assessment Service (HIRA) was used to measure the cost of illness due to atopic dermatitis, and this study included both direct and indirect costs. Direct cost is composed of treatment, medication, transportation, and caregiver’s time cost. Indirect costs associated with the loss of productivity in atopic dermatitis patients, such as absence of work, income loss due to premature death in the future. The results show that the socio-economic burden of atopic dermatitis is about 90 billion won in Korea. Furthermore, this study identified that children and adolescents are more vulnerable. The results of this study can be valuable for determining the priority of health policy and intervention strategies to reduce the burden of disease due to atopic dermatitis.
히스토그램 평탄화 잔차 분석 기반 X-ray 영상의 투과도 평가 기법
허준영 ( Junyoung Heo ),최현진 ( Hyeonjin Choi ),유동연 ( Dong-yeon Yoo ),선주성 ( Joo-sung Sun ),이정원 ( Jung-won Lee ) 한국정보처리학회 2023 한국정보처리학회 학술대회논문집 Vol.30 No.2
X-ray는 촬영 방식의 한계로 진단하기 어려운, 품질 낮은 영상을 다수 발생시킨다. 이러한 저품질 영상은 임상 현장에서의 진단이 어려울 뿐만 아니라, 진단 보조 도구를 개발함에 모델의 성능과 신뢰도를 떨어뜨리는 주요 요소가 된다. 특히 투과도가 낮은 영상은 학습 성능에 악영향을 미친다는 것이 입증된 바 있다. 따라서 본 연구는 투과도가 낮은 영상을 진단에 부적합한 영상으로 정의하여, 이를 분류하는 기법을 제안한다. 제안하는 기법은 민감도 94.9%. 특이도 96.0%의 높은 성능을 보였다.