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박진용,이석준,김선기,최세광,전근일,김민환,Park, Jinyong,Lee, Seokjun,Kim, Sungi,Choi, Se Kwang,Chun, Gunil,Kim, Minhwan 한국수자원학회 2024 한국수자원학회논문집 Vol.57 No.4
The spatial and temporal non-uniform distribution of precipitation makes water management difficult. Due to climate change, nonuniform distribution of precipitation is worsening, and droughts and floods are occurring frequently. Additionally, the intensity of droughts and floods is intensifying, making existing water management systems difficult. From June 2022 to June 2023, most of the water storage rates of major dams in the Yeongsan river and Seomjin river basin were below 30%. In the case of Juam dam, which is the most dependent on water use in the basin, the water storage rate fell to 20.3%, the lowest ever. Pyeongnim dam recorded the lowest water storage rate of 27.3% on May 4, 2023. Due to a lack of precipitation starting in the spring of 2022, Pyeongnim dam was placed at a drought concern level on June 19, 2022, and entered the severe drought level on August 21. Pyeongrim dam and Suyangje(dam) have different operating institutions. Nevertheless, the low water level was not reached at Pyeongnim dam through organic linkage operation in a drought situation. Pyeongnim dam was able to stably supply water to 63,000 people in three counties. In order to maximize the use of limited water resources, we must review ways to move water smoothly between basins and water sources, and prepare for water shortages caused by climate change by establishing a consumer-centered water supply system.
[응용논문] 자동차 보수도장 조색작업에서 저 광택 및 무광택 컬러의 클리어와 소광제 혼합비율 조절에 관한 연구
박진용(Jinyong Park),장성국(Sungkuk Jang) 한국자동차공학회 2019 한국 자동차공학회논문집 Vol.27 No.12
Vehicles with low-gloss and flat colors applied to the car body have been in the market and their importance is increasing in the automotive repair painting sector. When applying glazed color at a repair painting site, color match was carried out based on previous experiences. However, low-gloss and flat colors are relatively new and further work is required in mixing the matting agent during color matching. Therefore, in order to propose a systematic method for low-gloss and flat colors, the specimens were prepared using five colors and five steps of the matting agent ratio. Brightness, color and glossiness were compared. It was found that gloss was reduced as the mixing ratio of the matting agent was increased, while brightness increased at 45 °. Using these results, we can propose a method of controlling the mixing ratio of clear and matting agents.
공장 자동화 시스템에서 하드웨어 구성요소 변화에 따른 유연성 있는 소프트웨어 설계 기법
박진용(Jinyong Park),유철중(Cheol-Jung Yoo),노혜민(Hyemin Noh) 한국정보기술학회 2016 한국정보기술학회논문지 Vol.14 No.3
The software for Factory Automation System must be modified when a hardware component is changed. This is because the software was developed based on the API provided by vendor. In this case, the cost of software modification becomes high since the cost depends on the frequency and range of using the API. In this paper, we propose a design technique of flexible software to minimize software modification cost which is related to a changed hardware component. By defining a control interface between API and software, this design technique limits the range of modification to the interface. Also, it is possible to reduce project risk as well as the cost of software modification because it enables developers to handle flexibly in changing hardware component.