Publications by authors named "Jae Kyu Park"
This paper proposes the mixing design of concrete having modified sulfur-coated aggregate (MSCA) to enhance the durability of Portland cement concrete. The mechanical properties and durability of the proposed MSCA concrete were evaluated experimentally. Melting-modified sulfur was mixed with aggregate in order to coat the aggregate surface at a speed of 20 rpm for 120 s.
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- The study aimed to evaluate how well cone beam computed tomography (CBCT) synthesized cephalograms match traditional cephalograms and to establish a method for defining normal values in 3D assessments.
- A group of 10 adults with normal facial structures underwent imaging with both conventional and CBCT cephalograms, analyzing 21 angular and 12 linear measurements using statistical tests.
- Results indicated that most linear and angular measurements between the two methods did not show significant differences, suggesting that traditional 2D cephalometric norms can be adapted for 3D evaluations with some corrections for distortion.
Two-step pilot-scale biofilter system for the abatement of food waste composting emission.
J Environ Sci Health A Tox Hazard Subst Environ Eng
March 2008
A pilot-scale two-step biofilter system was evaluated in treating food waste composting emission for 220 days. Wood chips were packed at the bottom section while mixture of rock wool and earthworm compost (6% w/v) was packed at the top section. Inlet ammonia concentration was found to be dominant and intermittent.
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