IoT 활용 광물찌꺼기 적치장 모니터링 시스템 적용성 평가

한수호,정명채,김정욱,전순원,윤경욱,황인호,박제현,고기라 한국자원공학회 2019 한국자원공학회지 Vol.56 No.6

In this study, a real-time monitoring system using IoT technology was established in a tailings dam of the Okdong mine, and the structural variation of the retaining wall structure and the leachate flow rate from the dam were examined to evaluate the field applicability of the measuring equipment. The slope of the structure’s inclinometer showed change of both the X-axis and Y-axis inclination with the change of seasons and temperature. This might have been due to slight change caused by shrinkage and expansion of the structure length, resulting in variation of those angles. Variations in the flow rate of leachate from the dam resulted from increased precipitation amounts in the rainy season and decreased amounts in the dry season, although leachate was flowing out continuously. In the future, both the establishment of forecast and alarm grade systems and the installation of additional measuring devices along with the data accumulated from them will enable optimal safety management in tailings dam sites. 이 연구에서는 옥동광산 광물찌꺼기 적치장을 대상으로 IoT 기술을 활용한 실시간 모니터링 시스템을 구축하고 옹벽 구조물 변화 및 침출수 유출량 등을 확인하여 계측기기의 현장 적용 가능성을 평가하였다. 구조물 경사계의각도 변화는 계절 및 온도 변화에 따라 X축, Y축 경사가 모두 변화를 보였다. 이는 수축·팽창에 의해 구조물 길이가미세하게 변화되는 것으로 그에 따라 각도가 변화하고 있다. 침출수의 유량변화는 강우에 따라 증감하고 있으며, 건기에도 침출수가 지속적으로 유출되고 있어 관리가 필요한 실정이다. 향후 추가 계측기기 설치 및 계측기기별 축적된데이터를 활용하여 예보·경보등급 설정 등을 마련하면 최적의 적치장 안전관리를 할 수 있을 것으로 판단된다.

공연시설의 사용자 동선에 따른 공간의 기능별 연계에 관한 기초적 연구

한수호,고재민,임채진 한국문화공간건축학회 2006 한국문화공간건축학회논문집 Vol.- No.14

In general, performing facilities consist of various functional groupings. The functional groupings should be arranged, in relation to each other, depending on the circulation of users in a space. The performing culture in Korea has been rapidly progressed in recent years. However, compared to the superior examples of foreign performing facilities, it still needs improvements and systematic research. In this study, the functional groupings of general performing facilities as well as the circulation patterns of users will be analyzed and planning the arrangement of the space that considers a user's circulation. From the results of this study, a circulation system for each spatial composition will be suggested for the performing facilities to be constructed in the future.

국내 오염토양 반출정화사업 현황

한수호,정명채,김정욱,전순원,누엔 쿠억 트안,윤경욱,민선기,Han, SuHo,Jung, MungChae,Kim, JeongWook,Jeon, SoonWon,Nguyen, Quoc Tuan,Yoon, KyungWook,Min, SeonKi 한국지하수토양환경학회 2020 지하수토양환경 Vol.25 No.4

Recently, ex-situ remediation technologies has been emerging to clean up contaminated soils mainly because the in-situ techniques have limited applicability and technical difficulties in relatively small contaminated sites. Accordingly, implementation of off-site treatment and disposal have been continuously increased in soil remediation and restoration projects in Korea. However, in many cases, reclaimed soil is still not properly recycled or reused. Therefore, there is an urgent need to document the current status of soil management practices in soil remediation projects in the nation. This study presents a survey of soil contamination status and remedial approaches in Korea based on soil cleanup projects completed in 2015 - 2019, and proposes the possible options of the recycling or reusing the reclaimed soils under compliance with related regulations. The results of the soil survey showed soil contamination was most severe in gas stations, industrial facilities, and military areas. The major types of pollution were related to the petroleum-contaminated site (TPH and BTEX) with 77.0% occurrence in all the contaminated sites. The reclaimed soils were mostly reused as a ground filling-up soils in industrial facilities (60.0%) and warehouses (37.0%).

정화토의 순환골재 재활용 가능성 평가

한수호,김정욱,전순원,박승호,박형민,민선기,정명채,Han, Su Ho,Kim, Jeong Wook,Jeon, Soon Won,Park, Seung Ho,Park, Hyeong Min,Min, Seon Ki,Jung, Myung Chae 한국지하수토양환경학회 2021 지하수토양환경 Vol.26 No.6

This study examined the possibility of reutilization of soil reclaimed from contaminated sites after completing remediation. The current status of soil remediation methods in Korea was reviewed and physicochemical properties of soil before and after remediation processes were examined to access the recycling possibility of reclaimed soils based on Recycling Aggregate Quality Standard. The most commonly practiced soil remediation techniques are soil washing, land farming, and thermal desorption. These techniques tend to deteriorate various soil properties including electrical conductivity(EC), organic matter content(OM), available P₂O₅, and cation exchange capacity(CEC). Evaluation of the properties of soil retrieved after each remediation process indicated soil washing may yield the most suitable soil for use as a filling, covering, back-filling, road pavement, and blocking materials, In addition, the soils reclaimed from land farming and thermal desorption have potential utility as a filling, covering and road pavement materials.

국내 소비재 기업의 지속 가능한 플라스틱 경영 전략 평가를 위한 지표 개발

한수호,권성구,박준희,이정기,이재혁,성용준,황성연,옥용식 한국환경과학회 2023 한국환경과학회지 Vol.32 No.11

Growing stringent global regulations in Korea poses a threat to corporate sustainability. Companies must respond strategically to navigate these regulations and avoid greenwashing. Objective of this research was to analyze how Korean companies are responding to the global trend of reducing plastic use and propose improved management strategies. Seven indicators were developed to assess companies' post-plastic strategies and applied to analyze the sustainability reports of Amore Pacific and LG Household & HealthCare. These indicators included, 1) disclosure of plastic raw materials used by weight or volume, 2) disclosure of recycled plastic raw materials used by weight or volume, 3) disclosure of waste recycling, reuse amounts, and disposal using waste treatment method 4) strategies to reduce environmental impact of plastics, 5) plastic packaging, reduce, recycle, reuse, and composting (in the real environment), 6) plastic management roadmap for the circular economy, and 7) education for sustainable plastic management. Based on the review of considered companies, we propose in-listed sustainable plastics management strategies: disclosing the ratio of plastic raw materials and recycled raw materials for all products, considering recycling rate throughout the product value chain, and not only for the production phase, reviewing carbon dioxide emissions based on life cycle assessment rather than reducing plastic consumption, studying the biodegradability of biodegradable plastics in natural environment such as soil, considering the consumer's perspective.

폐금속광산 주변 오염 농경지에서 비소의 안정화 효율 평가

한수호,정명채,김정욱,윤경욱,민선기,박소연,심기태 한국지하수토양환경학회 2021 지하수토양환경 Vol.26 No.1

This study has evaluated the stabilization of As contaminated paddy and cultivated soils by pot experiments for rice andlettuce. Various ratios of limestone (L) and steel slag (S) were mixed with the soils in each pot. The soils were taken frombefore and after pot experiments, and analyzed for As extracted by sequentially (Wenzel method) and totally (aqua regiamethod).. Paddy soils amended with L (0.5%) and L (1.0%) + S (1.0%) showed increasing fraction 2 (specifically boundAs) compared with control soil. Arsenic concentrations in rice grain grown on the amended soils decreased 14% and 12%compared with those on the control soil, respectively. According to sequential extraction of As in cultivated soils, thefractions 1~3 were decreased due to stabilization of As by the soil amendment, especially for S (1.0%), S (3.0%) and L(1.0%) + S (1.0%). In addition, relatively low As concentrations were found in lettuce grown on amended soils with L(0.5%) and L (1.0%) + S (1.0%). Therefore, it can be suggested that soil amendments with L (0.5%) or L (1.0%) + S (1.0%)were suitable for enhancing stabilization of As in the study area.

내진 보수보강용 폴리우레아의 횡방향 구속효과를 산정하기 위한 일축압축강도 실험에 관한 연구

한수호(Han, Soo Ho),박준희(Park, June Hee),윤도균(Yoon, Do Kyun),남연우(Nam, Yeon Woo),김장호(Jang Jay Ho) 대한토목학회 2021 대한토목학회 학술대회 Vol.2021 No.10

횡방항철근에 의해 구속된 RC 기둥의 압축 거동

한수호 ( Han Soo Ho ),이태희 ( Lee Tae Hee ),김장호 ( Kim Jang Jay Ho ) 한국구조물진단유지관리공학회 2020 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.24 No.1

최근 지진, 쓰나미, 태풍 둥의 자연재해에 관한 우려가 점점 커지고 있다. 우리나라의 지진 비율도 1990년대 중반 이후로 급격히 증가하는 추세를 보이며 2017년 11월 포항에서 규모 5.4의 지진이 발생하는 등 지진의 규모와 빈도가 커짐에 따라 일반 구조물에 사용되는 기둥이 지진하중 대비 성능 평가에 관한 연구가 필요한 실정이다. 본 연구에서는 연속 횡방향철근으로 보강한 기둥이 띠철근으로 보강한 기둥보다 지진하중과 같은 반복하중에 강하며 철근 구속효과 또한 뛰어나다는 사실에 근거하여 기둥의 단면 형상과 횡방향 철근의 형태 및 간격을 변수로 철근 콘크리트 단주의 1축 압축 실험을 진행하였다. 그 결과 원형기둥과 사각기둥 모두에서 연속 횡방향철근으로 보강한 기둥이 띠철근으로 보강한 기둥보다 더 높은 압축강도를 나타냈으며, 콘크리트의 파괴 이후에도 나선철근으로 보강된 기둥에서는 띠철근보다 변위가 진행됨에도 하중을 버티는 경향을 보였다

선택적 식각 공정을 이용한 마이크로-나노 계층 구조 제조

한수호(Soo Ho Han),황희윤(Hui Yun Hwang) 대한기계학회 2018 대한기계학회 춘추학술대회 Vol.2018 No.4

혁신성이 기업성과에 미치는 영향에 관한 연구 - 데이터 리터러시의 매개 및 리더십 스타일의 조절효과를 중심으로 -

한수호(Soo-ho Han),최주철(Ju-choel Choi) 한국컴퓨터정보학회 2023 韓國컴퓨터情報學會論文誌 Vol.28 No.7

본 논문에서는 급속하게 디지털 경제로 전환되고 있는 중소기업 최고경영자의 혁신성이 기업성과에 미치는 영향과 데이터 리터러시가 어떤 매개 기능을 수행하는지 리더십 스타일에 따라 상관관계가 조절되는지를 분석하였다. 혁신성은 기업성과에 긍정적 영향을 미치고 데이터 리터러시가 혁신성과 기업성과 간의 관계를 부분 매개 하는 것을 확인하였다. 변혁적 리더십은 혁신성과 기업성과 간의 관계에서 조절 효과를 보여주고 있으며 거래적 리더십은 조절 효과가 나타나지 않았다. 자유방임적 리더십은 혁신성과 데이터 리터러시 간의 관계에서 조절 효과가 있다. 이러한 결과는 혁신성이 조직의 경영성과를 높이기 위한 유효한 수단이 되는 것을 알 수 있으며 자유방임적 리더십의 중요성을 일깨우고 경영전략 수립에 기여할 수 있을 것으로 기대한다. In this paper analyzed the impact of innovation of CEOs of small and medium-sized companies, which are rapidly shifting to a digital economy, on corporate performance and how data literacy performs mediating functions. It was confirmed that innovation has a positive effect on corporate performance and that data literacy partially mediates the relationship between innovation and corporate performance. Transformational leadership shows a moderating effect in the relationship between innovation and corporate performance, and transactional leadership showed no moderating effect. Laissez-faire leadership has a moderating effect in the relationship between innovation and data literacy. These results show that innovation is an effective means of improving the organizations management performance, and are expected to awaken the importance of laissez-faire leadership and contribute to the establishment of management strategies.