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Livinia Saputra, Sang Hyun Kim, Kyung-Jin Lee, Seo Jin Ki, Ho Young Jo, Seunghak Lee and Jaeshik Chung
The vadose zone acts as a natural buffer against groundwater contamination, and thus, its attenuation capacity (AC) directly affects groundwater vulnerability to pollutants. A regression model from the previous study predicting the overall AC of soils ag...
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Jin Woo Kim, Saerom Park, Young Whan Sung, Hak Jin Song, Sung Woo Yang, Jiwoo Han, Jeong Wook Jo, Im-Soon Lee, Sang Hyun Lee, Yong-Keun Choi and Hyung Joo Kim
Commiphora myrrha (T.Nees) Engl. resin extracts were prepared via immersion in extraction solvents (hot water, DMSO, hexane, ethanol, and methanol) which have various physical properties, such as different polarity and dielectric constant values. Methano...
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Su-Hoon Choi, So-Yeon Park, Ung Yang, Beomseon Lee, Min-Soo Kim and Sang-Hyun Lee
Typhoons, which are a common natural disaster in Korea, have seen a rapid increase in annual economic losses over the past decade. The objective of this study was to utilize historical crop insurance records to predict fruit drop rates caused by typhoons...
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Moo-Won Hur, Yonghun Lee, Min-Jun Jeon and Sang-Hyun Lee
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Tae-Ho Lee, Sang-Hyun Lee and Jee-Keun Lee
In this study, emulsified fuels were prepared and produced by blending 0%, 5%, 15%, and 25% water with Bunker C oil to reduce the amount of air pollution emitted by ships and replace oil resources, and they were applied to an actual marine boiler to anal...
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Chulseung Yang, Gi Won Ku, Jeong-Gi Lee and Sang-Hyun Lee
This paper presents an interval-based LDA (Linear Discriminant Analysis) algorithm for individual verification using ECG (Electrocardiogram). In this algorithm, at first, unwanted noise and power-line interference are removed from the ECG signal. Then, t...
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Sang Hyun Lee, Dong-Ha Lim and Kyungtae Park
In this study, exergy and economic analysis were conducted to gain insight on small-scale movable LNG liquefaction considering leakage. Optimization and comparison were performed to demonstrate the quantitative results of single mixed refrigerant, dual n...
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Sang-Hyun Lee, Makoto Taniguchi, Rabi H. Mohtar, Jin-Yong Choi and Seung-Hwan Yoo
The aim of this study is to assess the impact of rice-based food security on water, energy, land, and CO2 emissions from a holistic point of view using the Nexus approach, which analyzes tradeoffs between water, energy, and food management. In Japan, bot...
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Seungjong Bae, Sang-Hyun Lee, Seung-Hwan Yoo and Taegon Kim
The aim of this study is to analyze the characteristics of drought, such as intensity and trends, based on SPEI (Standardized Precipitation Evapotranspiration Index) at 8 stations in South Korea from 1981 to 2010. The traditional SPEI is based on the Tho...
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Sang-Hyun Lee, Seung-Hwan Yoo, Jin-Yong Choi and Seungjong Bae
North Korea is a food-deficit nation in which climate change could have a significant impact on drought. We analyzed drought characteristics in the Hwanghae Plain, North Korea using both the multiple timescales of the standardized precipitation index (SP...
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