Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Jeonghyeon Choi"'
Publikováno v:
Hydrology Research, Vol 55, Iss 2, Pp 221-236 (2024)
Explaining the significant variability of rainfall in orographically complex mountainous regions remains a challenging task even for modern raingauge networks. To address this issue, a real-time spatial rainfall field estimation model, called WREPN (
Externí odkaz:
https://doaj.org/article/76f6182eb8ee4ee09f9af9c89dadc858
Autor:
Jeonghyeon Choi, Youbean Kim
Publikováno v:
IEEE Access, Vol 12, Pp 6413-6422 (2024)
Due to the inherent loss characteristics of transmission lines today, the challenges in signal transmission are increasing. Typically, the most widely used printed circuit boards (PCBs) in transmission lines employ FR-4 as the insulation material due
Externí odkaz:
https://doaj.org/article/e0449b6fe24e46caa1d71b3fc57b54fd
Publikováno v:
Water, Vol 15, Iss 23, p 4094 (2023)
In the context of hydrological model calibration, observational data play a central role in refining and evaluating model performance and uncertainty. Among the critical factors, the length of the data records and the associated climatic conditions a
Externí odkaz:
https://doaj.org/article/1e51439306e749b5af5e79e261067738
Publikováno v:
Water Supply, Vol 22, Iss 1, Pp 75-88 (2022)
The magnitude and frequency of extreme rainfall due to climate change is increasing. Increasing rainfall causes serious hydrological problems in cities. Rainfall does not infiltrate the soil, but mostly flows through the sewer pipes into the stream.
Externí odkaz:
https://doaj.org/article/6e0c1396c40d4e9a819728cba8455f25
Autor:
Jeongeun Won, Jiyu Seo, Jeonghoon Lee, Jeonghyeon Choi, Yoonkyung Park, Okjeong Lee, Sangdan Kim
Publikováno v:
Water, Vol 15, Iss 13, p 2485 (2023)
River runoff predictions in ungauged basins are one of the major challenges in hydrology. In the past, the approach using a physical-based conceptual model was the main approach, but recently, a solution using a data-driven model has been evaluated a
Externí odkaz:
https://doaj.org/article/701ce40c7382417ca8ecb07dc54ceb48
Autor:
Jeonghoon Lee, Okjeong Lee, Jeonghyeon Choi, Jiyu Seo, Jeongeun Won, Suhyung Jang, Sangdan Kim
Publikováno v:
Water, Vol 15, Iss 9, p 1794 (2023)
The effect of mountainous regions with high elevation on hourly timescale rainfall presents great difficulties in flood forecasting and warning in mountainous areas. In this study, the hourly rainfall–elevation relationship of the regional scale is
Externí odkaz:
https://doaj.org/article/20337079515f41419e390bccaaa3db0f
Publikováno v:
Water, Vol 15, Iss 5, p 972 (2023)
As a significant portion of the available water resources in volcanic terrains such as Jeju Island are dependent on groundwater, reliable groundwater level forecasting is one of the important tasks for efficient water resource management. This study
Externí odkaz:
https://doaj.org/article/6b1411abbb764b3a86601acedd0be5e0
Autor:
Jingyeong Park, Jeonghyeon Choi, Hyeondeok Jo, Daisuke Kodaira, Sekyung Han, Moses Amoasi Acquah
Publikováno v:
Energies, Vol 15, Iss 21, p 8071 (2022)
Frequency regulation (FR) using a battery energy storage system (BESS) has been expanding because of the growth of renewable energy. This study introduces the wear density function, which considers battery degradation factors such as the rate of curr
Externí odkaz:
https://doaj.org/article/806421ddc0b34189aea47aa6162320f0
Publikováno v:
Water, Vol 14, Iss 18, p 2910 (2022)
Many studies have applied the Long Short-Term Memory (LSTM), one of the Recurrent Neural Networks (RNNs), to rainfall-runoff modeling. These data-driven modeling approaches learn the patterns observed from input and output data. It is widely known th
Externí odkaz:
https://doaj.org/article/41cd68ff3ef24476b9967ad981f13d61
Publikováno v:
Advances in Meteorology, Vol 2019 (2019)
In this study, the effects of surface air temperature (SAT) and sea surface temperature (SST) changes on typhoon rainfall maximization are analysed. Based on the numerically reproduced Typhoon Maemi, this study tried to maximize the typhoon-induced r
Externí odkaz:
https://doaj.org/article/6d578b4cd25c4a1a909a2f3f31baf56e