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Jae Young Seo and Sang-Il Lee
Drought is a complex phenomenon caused by lack of precipitation that affects water resources and human society. Groundwater drought is difficult to assess due to its complexity and the lack of spatio-temporal groundwater observations. In this study, we p...
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Agbortoko Bate Ashu and Sang-Il Lee
Understanding hydrological processes using hydrological model parameters can improve the management of water resources in a watershed. This research uses the Soil and Water Assessment Tool (SWAT) model in examining the water balance in the Yeongsan River...
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Joong-Hoon Yoon, Jang-Ho Lee and Sang-Il Lee
In this study, temperature distribution as a function of the spar-cap thickness was numerically analyzed using a 20 kW wind carbon blade model. ?Realizable k-e?, which was adopted as a turbulence model for heat transfer analysis, was effective in convect...
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Jae Yun Lee, Young Geun Yoon, Tae Keun Oh, Seunghee Park and Sang Il Ryu
In the construction industry, it is difficult to predict occupational accidents because various accident characteristics arise simultaneously and organically in different types of work. Furthermore, even when analyzing occupational accident data, it is d...
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Ki Wook Bae, Jeong Yun Hwang, Sang-il Kim, Hyung Mo Jeong, Sunuk Kim, Jae-Hong Lim, Hyun-Sik Kim and Kyu Hyoung Lee
Herein we report a significantly reduced lattice thermal conductivity of Sb-doped Hf0.35Zr0.35Ti0.3NiSn half-Heusler alloys with sub-micron grains (grain size of ~300 nm). Polycrystalline bulks of Hf0.35Zr0.35Ti0.3NiSn1-xSbx (x = 0.01, 0.02, 0.03) with a...
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Hyon Wook Ji and Sang-Il Lee
Drinking water production facilities are designed to filter contaminants that are ever-present in raw water. These facilities, however, pose risks of tap water contamination or water supply discontinuation in the event of a massive chemical spill. A mana...
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Jae Young Seo and Sang-Il Lee
Estimation of total discharge is necessary to understand the hydrological cycle and to manage water resources efficiently. However, the task is problematic in an area where ground observations are limited. The North Korea region is one example. Here, the...
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Willibroad Gabila Buma, Sang-Il Lee, Jae Young Seo
Pág. 1 - 15
Sustainable water resource management requires the assessment of hydrological changes in response to climate fluctuations and anthropogenic activities in any given area. A quantitative estimation of water balance entities is important to understand the v...
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Hyon Wook Ji, Sang-Il Lee
Pág. 1 - 13
This paper presents an analysis of the potential risks of chemicals that can affect an aquifer storage transfer and recovery (ASTR) site. ASTR is a water supply system that injects surface water into an aquifer and then extracts naturally filtered ground...
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Sang-Joon Cho, Byung-Woon Ahn, Joonhui Kim, Jung-Min Lee, Yueming Hua, Young K. Yoo, and Sang-il Park
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