Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Ki Young Koo"'
Autor:
Hojune Ann, Ki Young Koo
Publikováno v:
Sensors, Vol 23, Iss 22, p 9095 (2023)
The recent large-scale fire incidents on construction sites in South Korea have highlighted the need for computer vision technology to detect fire risks before an actual occurrence of fire. This study developed a proactive fire risk detection system
Externí odkaz:
https://doaj.org/article/d1bb2efeb7a44535b76747e3ea885ea5
Publikováno v:
Frontiers in Built Environment, Vol 4 (2019)
Time synchronization for wireless sensors is important for a proper interpretation of measurements, particularly for acceleration measurements to estimate mode-shapes. This paper presents a new time synchronization method working independently on eac
Externí odkaz:
https://doaj.org/article/b32f5cf663004b6ea2f652ce3f0f085e
Publikováno v:
Frontiers in Built Environment, Vol 3 (2017)
A wide range of vibrating structures are characterized by variable structural dynamics resulting from changes in environmental and operational conditions, posing challenges in their identification and associated condition assessment. To tackle this i
Externí odkaz:
https://doaj.org/article/d48a150d7429451499e8ff2593ed244a
Publikováno v:
The Baltic Journal of Road and Bridge Engineering, Vol 7, Iss 4, Pp 253-260 (2012)
The finite element models need to be updated to simulate the actual behavior of the structures. A simplified approach has been presented in this paper for model updating of steel box girder bridge using the virtual static deflections. The approach is
Externí odkaz:
https://doaj.org/article/ed69290b96ba4d25b41a4d11f51eec49
Autor:
Ying Wang, Ki-Young Koo
Publikováno v:
Applied Sciences, Vol 12, Iss 1, p 395 (2021)
The 3D point cloud reconstruction from photos taken by an unmanned aerial vehicle (UAV) is a promising tool for monitoring and managing risks of cut-slopes. However, surface changes on cut-slopes are likely to be hidden by seasonal vegetation variati
Externí odkaz:
https://doaj.org/article/e81f72cfabe74f1d85763db86d82bbec
Autor:
Ying Wang, Ki Young Koo
Publikováno v:
Applied Sciences, Vol 12, Iss 395, p 395 (2022)
Applied Sciences; Volume 12; Issue 1; Pages: 395
Applied Sciences; Volume 12; Issue 1; Pages: 395
The 3D point cloud reconstruction from photos taken by an unmanned aerial vehicle (UAV) is a promising tool for monitoring and managing risks of cut-slopes. However, surface changes on cut-slopes are likely to be hidden by seasonal vegetation variati
Publikováno v:
Engineering Structures. 288:116185
Autor:
Jose Alfonso Jimenez Capilla, James M. W. Brownjohn, Wensheng Lu, Kaoshan Dai, Ki-Young Koo, Ying Wang
Publikováno v:
Journal of Civil Structural Health Monitoring. 11:757-766
Telecom structures such as high guyed masts are tall and flexible, so that not only the main structure but also the components (i.e., guy cable and antenna) suffer from vibrations induced by wind or earthquakes. The installation of contact inertial a
Publikováno v:
Journal of Zhejiang University-SCIENCE A. 21:580-592
Temperature is a significant load on bridges, particularly for long-span steel box girder bridges. This study investigates the temperature-induced static responses of a long-span suspension bridge under real service environmental conditions using num