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Tae-Yong Park, Jae-Hyeon Park and Hyun-Ung Oh
Steinberg?s theory, which is based on the fatigue failure theory, has been widely used for predicting the structural safety of solder joints in aerospace electronic units under vibration during launches. However, theoretical limitations are encountered w...
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Young-Hyeon Lee, Hye-Ran Kim, Min-Ho Yeo, Sung Chun Kim, Ho-Bong Hyun, Young-Min Ham, Yong-Hwan Jung, Hye-Sook Kim and Kyung-Soo Chang
Current research highlights the use of natural products or phytochemicals as drugs and functional additives to treat obesity with few side effects. Sargassum horneri (SH) and Ulva australis (UA) are marine waste resources on Jeju Island, Republic of Kore...
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Md. Abu Ayub Siddique, Seung-Yun Baek, Seung-Min Baek, Hyeon-Ho Jeon, Jun-Ho Lee, Mo-A Son, Su-Young Yoon, Yong-Joo Kim and Ryu-Gap Lim
The objective of this study was to estimate power delivery efficiency and fuel consumption based on engine modes. In this study, a 95 kW power-shift tractor was used to analyze power delivery and estimate fuel consumption during rotary tillage. Rotary ti...
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Hyun-Jae Jo, Su-Rim Kim, Jung-Hyeon Kim and Jong-Yong Park
As the research concerning unmanned surface vehicles (USVs) intensifies, research on swarm operations is also being actively conducted. A swarm operation imitates the appearance of nature, such as ants, bees, and birds, in forming swarms, moving, and att...
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Hye-young Son, Hyeon-dong Roh, Gi-yong Kim, Sang-jin Oh, Jin Choi, Dong-kon Lee and Sung-chul Shin
Considering the nature of marine accidents, even a single accident can result in significant damage to the environment and property, as well as loss of life. Therefore, the initial response should be rapid and accurate, and various decision support syste...
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Yong-Beom Lee, Ji-Min Lee, Do-Haeng Hur, Jong-Hyeon Lee and Soon-Hyeok Jeon
Ethanolamine (ETA) is widely used to control the pH value in the secondary water of pressurized water reactors. However, it is necessary to consider other advanced amines which can replace ETA due to its serious human hazards and environmental treatment ...
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Chanhyeok Jeon, Maimoona Raza, Jin-Yong Lee, Heejung Kim, Chang-Seong Kim, Bora Kim, Jeong-Woo Kim, Rak-Hyeon Kim and Sun-Woo Lee
Under changing climate, increasing groundwater use has risen the concern for groundwater quality variations over recent years, to maintain a healthy ecosystem. The objectives were to identify trend of temporal variations in groundwater quality and its su...
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Woon Yong Choi, Jae-Hun Sim, Jung-Youl Lee, Do Hyung Kang and Hyeon Yong Lee
The Spirulina maxima exact from a non-thermal ultrasonic process (UE) contains 17.5 mg/g of total chlorophyll, compared to 6.24 mg/g of chlorophyll derived from the conventional 70% ethanol extraction at 80 °C for 12 h (EE). The UE also showed relatively...
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Hyeon Yong Lee
As a nonthermal process, ultrasonic extraction was optimized to obtain 13.21 mg/g of highly bioactive but extremely heat-sensitive cyanidin-3-O-galactoside (C3G) from Aronia melanocarpa Elliot under the following conditions; 75 kHz input frequency, 18.8 ...
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Hyo-Kyung Song, Kyung-Hyeon Yoo, Seog-Young Yoon, Hee Sam Na, Jin Chung, Woo-Sung Son, Seung-Min Lee and Yong-Il Kim
This work has applications to protect tooth enamel for orthodontic treatment patients. It can be applied to study prevent enamel demineralization.
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