Ho-Kyung Kim
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Improvement of Safety Management System for Hazardous Materials Open
This study analyzed the status of accidents involving hazardous materials on an annual basis. Issues related to the safety manager appointment system of the Hazardous Materials Safety Management Act were identified, and a survey was conduc…
Long-term Observation of Therapeutic Effect of Onabotulinumtoxin A on Short-lasting Unilateral Neuralgiform Headache Attacks with Conjunctival Injection and Tearing Open
Short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing (SUNCT) is a rare primary headache disorder characterized by severe intractable stabbing headache and accompanying tearing and conjunctival inje…
Life-cycle sea-crossing bridge operation under strong winds in severe weather Open
This study addresses the challenge of maintaining the stability of running vehicles on sea-crossing bridges in the presence of strong side winds. To ensure safety, bridge operators often limit speed or close bridges when wind speeds reach …
Ventilation efficiency in road vehicles and probability of respiratory infection Open
This study experimentally measured the ventilation efficiency in road vehicles. Two air circulation methods, air conditioning and opening windows, were considered and their ventilation efficiencies were measured for a sedan and a cutaway b…
Risk Assessment of Wind-Induced Vehicle Accidents on Long-Span Bridges Using Onsite Wind and Traffic Data Open
A systematic approach was proposed to assess vehicle accident risk over sea-crossing bridges under strong winds. The annual frequency of an accident was evaluated as a risk index using the information on daily traffic volumes, the ratio of…
Biosensors Based on Bivalent and Multivalent Recognition by Nucleic Acid Scaffolds Open
Several biological macromolecules adopt bivalent or multivalent interactions to perform various cellular processes. In this regard, the development of molecular constructs presenting multiple ligands in a specific manner is becoming crucia…
Vision-Based Cable Displacement Measurement Using Side View Video Open
Recent tragedies around the world have shown how accidents in the cable-stayed bridges can wreak havoc on the society. To ensure the safety of the cable-stayed bridges, several studies have estimated the cable tension force using the vibra…
Experimental study on suppression of vortex-induced vibration of bridge deck using vertical stabilizer plates Open
Despite the wind-resistant design performed during the design stage, an existing bridge may still experience severe vortex-induced vibrations (VIVs) because of the installation of new affiliated facilities during its operation period. Ther…
Real-Time Aeroelastic Hybrid Simulation of a Base-Pivoting Building Model in a Wind Tunnel Open
The wind tunnel test is one of the most reliable methods for evaluating the dynamic response of high-rise buildings considering wind-structure interaction. In conventional aeroelastic wind tunnel tests, the calibration of stiffnesses, mass…
How wind affects vehicles crossing a double-deck suspension bridge Open
In this study, wind-tunnel testing was used to evaluate how side-winds interact with the geometric characteristics of the truss girders of a double-deck bridge and how this impacts vehicle stability. The aerodynamic coefficients of three v…
Effect of Strain Hardening on Increase in Collapse Pressure during the Manufacture of ERW Pipe Open
Plastic deformation during the manufacture process of electric resistance welded (ERW) pipe determines the stress–strain relationship of the steel pipe, which affects the collapse pressure of offshore pipelines. To track the deformation hi…
Collapse Analysis of ERW Pipe Based on Roll-Forming and Sizing Simulations Open
The demand for electric resistance welded (ERW) pipe for deep-water installation has increased, which necessitates a higher degree of accuracy in evaluating the strength of pipe in order to satisfy the design limit state, otherwise referre…
Feasibility of a Quasi-Static Approach in Assessing Side-Wind Hazards for Running Vehicles Open
This study is an examination into the feasibility of a quasi-static approach to evaluating the reaction forces that impact tires. This information could lend valuable insight into efforts to limit overturning and side-slip accidents of veh…
View article: IABSE Task Group 3.1 Benchmark Results. Part 1: Numerical Analysis of a Two-Degree-of-Freedom Bridge Deck Section Based on Analytical Aerodynamics
IABSE Task Group 3.1 Benchmark Results. Part 1: Numerical Analysis of a Two-Degree-of-Freedom Bridge Deck Section Based on Analytical Aerodynamics Open
IABSE Task Group 3.1 has the mandate to define reference results for the validation of methodologies and programs used to study both stability and buffeting responses of long-span bridges. These tools for the simulation of the aeroelastic …
View article: IABSE Task Group 3.1 Benchmark Results. Part 2: Numerical Analysis of a Three-Degree-of-Freedom Bridge Deck Section Based on Experimental Aerodynamics
IABSE Task Group 3.1 Benchmark Results. Part 2: Numerical Analysis of a Three-Degree-of-Freedom Bridge Deck Section Based on Experimental Aerodynamics Open
IABSE Task Group 3.1 has the mandate to define reference results for the validation of methodologies and programs used to study both stability and buffeting responses of long-span bridges. To this end, the working group set up a benchmark …
Enhanced Damping Estimation for Cable-Stayed Bridges Based on Operational Monitoring Data Open
This study proposes an enhanced damping estimation procedure for flexible cable-supported bridges based on operational modal analysis (OMA). The OMA approach combines the natural excitation technique (NExT) with an eigensystem realization …
Damping Identification of Bridges Under Nonstationary Ambient Vibration Open
This research focuses on identifying the damping ratio of bridges using nonstationary ambient vibration data. The damping ratios of bridges in service have generally been identified using operational modal analysis (OMA) based on a station…
Effect of the relative differences in the natural frequencies of parallel cable-stayed bridges during interactive vortex-induced vibration Open
This study was focused on the effects of vortex-induced vibration (VIV) in parallel twin cable-stayed bridges. A series of wind tunnel tests were performed to investigate the effect of the relative differences in the setup of the natural f…
What We Have Learned from Operational Monitoring and Serviceability Assessment of Long-Span Bridges Open
More than 50 cable-supported bridges have been built in Korea since 1980.While maintaining those infrastructures for last 30 years, we have experienced unexpected problems from operational field monitoring of long-span bridges.This paper d…
Tribology behavior of a lubricant with nano-diamond particles on steel Open
A pin-to-disc wear testing machine was used in order to investigate the wear characteristics of a lubricant with nano-diamond (ND) particles.The applied loads were 30 N, 40 N, 50 N and 60 N and the sliding speed was 0.3 m/s.The wear tests …