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Yeon Moon Choo, Deok Jun Jo, Gwan Seon Yun and Eui Hoon Lee
Frequent localized torrential rains, excessive population density in urban areas, and increased impervious areas have led to massive flood damage that has been causing overloading of drainage systems (watersheds, reservoirs, drainage pump sites, etc.). F...
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Byong Wook Cho and Chang Oh Choo
Uranium concentrations (a total of 82 samples) in groundwater in Icheon, middle Korea, showed a wide range from 0.02 to 1640 µg/L with a mean of 56.77 µg/L, a median of 3.03 µg/L, and a standard deviation of 228.63 µg/L. Most groundwater samples had quit...
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Jung-Ryel Choi, Jang Hyun Sung, Dong-Ho Kang, Kyung-Su Choo and Byung-Sik Kim
Most of Korea?s precipitation is concentrated between June and September, and 65% of the country?s territory is covered with mountains, which means there is less time for rainfall to reach the surface. These hydrological characteristics pose challenges i...
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Dan Wang, Jialing Che, Haifeng Liu and Siew Choo Chin
Economical desert sand engineered cementitious composites (DS-ECCs) using a mixture of cement, fly ash, local desert sand, water, low-cost PVA fibers, and chemical additives were developed, aiming for a further enhancement in ductility and toughness. The...
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Yije Kim, Sangyoon Chin and Seungyeon Choo
Views, drawings, and data extracted from building information modeling (BIM) constitute essential deliverables throughout the lifecycle of an architecture, engineering, and construction project, offering crucial insights for comprehending the design. Nev...
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Ashraf Zohud, Lubna Alam and Choo Ta Goh
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Ki-Beom Choo, Hyunjoon Cho, Jung-Hyeun Park, Jiafeng Huang, Dongwook Jung, Jihyeong Lee, Sang-Ki Jeong, Jongsu Yoon, Jinhun Choo and Hyeung-Sik Choi
This study focuses on faults in the thrusters of unmanned surface vehicles, which are fatal to the integrity of their missions. As for the fault conditions, the breakage of the thruster blade and the entanglement of floating objects were selected, and a ...
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Sungsik Wang, Hyunsoo Kim, Dongyoon Kim and Hosung Choo
This paper proposes a multi-band array antenna that shares a common aperture with heterogenous array elements. The multi-band array antenna includes one printed dipole antenna for the S-band and 3 × 3 array E-shaped patch antennas for the X-band. The cur...
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Wan Teng Tey, Tee Connie, Kan Yeep Choo and Michael Kah Ong Goh
Traditional methods used to identify and monitor insect species are time-consuming, costly, and fully dependent on the observer?s ability. This paper presents a deep learning-based cicada species recognition system using acoustic signals to classify the ...
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