Publications by authors named "Tae-Kyung Hwang"
Environ Res
December 2024
Article Synopsis
- Ambient PM is a complex pollutant with varying chemical compositions and sources across regions, influenced by local conditions and emissions.
- Current policies mainly target mass concentrations of PM, neglecting the fact that not all sources pose the same health risks, especially those linked to industries and coal combustion.
- This study utilized positive matrix factorization to analyze PM sources in South Korea and found that specific sources significantly correlate with emergency department visits, indicating the need for tailored regional policies for effective public health management.
Article Synopsis
- New fiber Bragg grating (FBG) sensor probes are developed to measure the maximum tensile strain in composite materials for structural health monitoring.
- The probes consist of thin aluminum films attached to FBG optical fibers, which capture residual strains that reflect the composite materials' strain levels.
- Two sensor types are tested with different aluminum thicknesses (18 μm and 36 μm), revealing that the 36 μm probe has higher strain sensitivity (0.23) compared to the 18 μm probe (0.13).
