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Kim, Siyeon;Lee, Meesung;Yu, Ilhan;Son, JeongWook
- Korean Journal of Construction Engineering and Management
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- v.22 no.4
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- pp.11-19
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- 2021
Despite of the various advantages of modular construction method and the continued growth of related markets, it is difficult to activate them because no specific system has been established in Korea. Accordingly, this study derived improvement areas and tasks for activating modular construction methods through existing literature reviews and preliminary surveys. Then, AHP analysis and expected utility evaluation were conducted for expert groups to derive priority for improvement areas and tasks. In addition, opinions of enterprise and architectural research were compared and analyzed, and the analysis results suggested the direction of policy establishment and system improvement. This study is expected to be used as a basic study for policy decision-making to activate modular construction method.
https://doi.org/10.6106/KJCEM.2021.22.4.011 인용 PDF KSCI

Suh, Ye-Ryoung;Koh, Keumseok Peter;Lee, Jaewoo
- Journal of the Korea Institute of Information and Communication Engineering
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- v.25 no.5
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- pp.731-740
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- 2021
This study applied LDA topic modeling analysis to collect and analyze news media big data related to face masks in the three waves of the COVID-19 pandemic in Korea. The results empirically show that media reports focused on mask production and distribution policies in the first wave and the mandatory mask wearing in the second wave. In contrast, more reports on trivial, gossipy events consist of the media coverage in the second and third waves. The findings imply that Korea's governmental interventions to address the shortage of face masks and to regulate mask wearing were successful relatively in a short time. In contrast, the study also reports that there may be relative less number of science-based news reports like the ones on the effectiveness of face masks or different levels of filter types. This study exemplifies how a big data analysis can be applied to evaluate and enhance public health communication.
https://doi.org/10.6109/jkiice.2021.25.5.731 인용 PDF KSCI

Kang, Ju Whan;Moon, Seung Rok;Park, Seon Jung
- KSCE Journal of Civil and Environmental Engineering Research
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- v.26 no.1B
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- pp.99-106
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- 2006
Due to both global warming and constructions of seadike/seawalls, continuously or abruptly rising tendencies of extreme high water levels have been detected at Kunsan and Mokpo harbors. This paper deals firstly with the separation of each effect, namely global warming effect and construction effect, on increases of water level quantitatively by a linear regression method. And then, it can be explained why and how the extreme high water levels had been risen just after constructions at both harbors. A numerical simulation of $M_2$ tidal constituent at Mokpo coastal zone shows that the tidal amplification by constructions is mainly due to the extinguishment of TCE at Mokpogu. The tidal flat effect makes the amplification more deepen at spring tide or extreme high tide, which results in the increase of inundation risk at Mokpo harbor. A frequency analysis method is applied, which is shown to be effective at such a site of having non-homogeneous tidal data due to constructions as Mokpo harbor.
https://doi.org/10.12652/Ksce.2006.26.1B.099 인용 PDF