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Young-Hyun Lee, Jin-Hoo Kim, Sang-Hee Lee and Sung-Bo Kim
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Kyoung Jin Joo, Gang Seok Lee, Hyun Seok Hong, Sung Hong Won and Ju Lee
Since an existing 3-phase inner rotor torque actuator (TA) has severe torque ripples, it is not appropriate for a gimbal system that requires precise position control. Therefore, a coreless TA is considered to eliminate the core causing torque ripples. I...
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Hoang Hai Nguyen, Dae-Yun Shin, Woo-Sung Jung, Tae-Yeol Kim and Dae-Hyun Lee
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Ye Lim Park, Hyun Ho Lee, Sung Un Kim, Namgoo Kang and Chang Oh Hong
Metals, including copper (Cu), iron (Fe), and zinc (Zn), are associated with nitrous oxide (N2O) production processes, such as nitrification and denitrification. This study aimed to elucidate the effects of Cu, Fe, and Zn on N2O emissions and to determin...
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Keun-Hyeok Yang, Ju-Hyun Mun, Jong-Won Kim and Sung-Jin Lee
With the increased interest in the inherent fire resistance of organic insulators, various precast concrete insulation panels have been developed. However, precast concrete insulation panels still have structural and fire resistance problems resulting fr...
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Seok Kim, Chan-Mi Song, Seung-Hun Lee, Sung-Chan Song and Hyun-Ung Oh
The small synthetic aperture radar (SAR) technology experimental project (S-STEP) mission aims to develop an innovative spaceborne SAR microsatellite as a constellation of 32 microsatellites featuring a high-resolution stripmap mode of 1 m. The S-STEP is...
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Hyun Joon Park, Min Seok Lee, Dong Il Park and Sung Won Han
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Marco Polo Espinoza Haro, Jong-Chun Park, Dong-Hyun Kim and Sung-Bum Lee
In the present study, a 2-ton class seaweed harvesting boat was optimized by employing a W-shape hull form to reduce roll motion due to wake-wash from passing boats. A series of numerical simulations were conducted using Star-CCM+, a commercial CFD (comp...
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Jung-Ho Kim, Jong-Hyun Sung, Chan-Soo Jeon, Sae-Hyun Lee and Han-Soo Kim
In recent years, the amount of construction waste and recycled aggregate has been increasing every year in Korea. However, as the recycled aggregate is poor quality, it is not used for concrete, and the Korean government has strengthened the quality stan...
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Jeong-Youn Kim, Jae-Beom Son, Hyun-Sung Leem and Seung-Hwan Lee
Brain functional changes could be observed in people after an experience of virtual reality (VR). The present study investigated cyber sickness and changes of brain regional activity using electroencephalogram (EEG)-based source localization, before and ...
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Moo-Yeon Lee, Dong Hyun Lim and Sung Chul Kim
The belt-driven-type integrated starter generator motor in a hybrid electric vehicle is vulnerable to thermal problems owing to its high output power and proximity to the engine. These problems may cause demagnetization and insulation breakdown, reducing...
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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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Heejin Kim, Ko Eun Lee, Yong Kwon Chae, Ok Hyung Nam, Mi Sun Kim, Ji-Hyun Jang, Sung Chul Choi and Hyo-Seol Lee
The characteristics of 3-dimensional (3D) cultured periodontal ligament stem cells derived from permanent teeth (pPDLSCs) and supernumerary teeth (sPDLSCs) were compared and evaluated in this study. pPDLSCs and sPDLSCs were cultured in an ultra-low attac...
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Sang Kuy Han, Keonwoo Kim, Yejoon Rim, Manhyung Han, Youngjeon Lee, Sung-Hyun Park, Won Seok Choi, Keyoung Jin Chun and Dong-Seok Lee
By virtue of their upright locomotion, similar to that of humans, motion analysis of non-human primates has been widely used in order to better understand musculoskeletal biomechanics and neuroscience problems. Given the difficulty of conducting a marker...
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Ju-Hui Kim, Ji-Su Kim, Si-Hyun Kim, Su-Hyeon Jeong, Un-Yul Jeong, Ji-Eun Jung, Sun-Kyung Lee and Sung-Hyen Lee
This study was conducted to evaluate and to increase the usage of the whole onion (Allium cepa L.), which is composed of a small bulb and many leaves that are discarded as by-products before the bulbs grow. Whole onions are harvested early in immature co...
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Hyun-Hwa Lee, Jin-Sol Kim, Jun-Han Jeong, Su Mi Park, Ramaraj Sathasivam, Sook Young Lee and Chun Sung Kim
Asian kelp (Undaria pinnatifida) is a brown alga mainly grown and consumed in East Asian countries such as China, Japan, and Korea. To date, studies on the various biological activities of Asian kelp have been conducted; however, studies focusing on the ...
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Sang Soo Hwang, Sung Jin Gil, Gang Nam Lee, Ji Won Lee, Hyun Park, Kwang Hyo Jung and Sung Bu Suh
In this study, the environmental impacts of various alternative ship fuels for a coastal ferry were assessed by the life cycle assessment (LCA) analysis. The comparative study was performed with marine gas oil (MGO), natural gas, and hydrogen with variou...
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Joo Hyun Sung, Jiho Lee, Kyoung Sook Jeong, Soogab Lee, Changmyung Lee, Min-Woo Jo and Chang Sun Sim
Environmental noise is known to cause noise annoyance. Since noise annoyance is a subjective indicator, other mediators?such as noise sensitivity?may influence its perception. However, few studies have thus far been conducted on noise annoyance in South ...
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Kyeong-Tae Lee, Garance Perrois, Hyun-Sung Yang, Taeho Kim, Sun Kyeong Choi, Do-Hyung Kang and Taihun Kim
This study was carried out to determine the levels of resistance and resilience of kelp forests to large-scale physical disturbances. Our study site, Seongsan, Jeju Island, was impacted by super typhoon ?Hinnamnor?. Before the typhoon, Seongsan had shown...
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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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