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Hee-Seon Bang, Jong-Chan Kim, Bum-Su Go, Dong-Won Choi and Hyo-Sung Kim
Recently, for the high performance of automobiles, the application ratio of zinc-coated steel sheets with excellent corrosion resistance has been increasing. However, it is difficult to achieve sound welds, as porosities form from zinc during welding. In...
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Jin-Hyo Kim and Sang-Min Sung
Unmanned aerial vehicle (UAV) photogrammetry is an emerging means of acquiring high-precision rapid spatial information and data because it is cost-effective and highly efficient. However, securing uniform quality in the results of UAV photogrammetry is ...
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Hyo-Geol Kim, Jin-Woong Lee, Su-Chul Kim, Jooseon Oh and Sung-Bo Shim
In this study, crank-locker kinematic equations were used to analyze the three-point hitch behavior when the dynamometer was connected to the work machine. The dynamometer was statically tested with a hydraulic actuator, and the accuracy of the three-way...
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Hwan-Sung Ji, Hyo-Jae Yu, Seung-Jong Lee, Sukyung Kang and Jin-Koo Kim
The daggertooth pike conger, Muraenesox cinereus, is an important demersal fish species in East Asia but the catch amount has declined in recent years. Spawning areas of M. cinereus have not yet been determined; identifying these have serious implication...
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Xiwen Yang, Hang Yin, Shaoming He, Ye Xie and Hyo-Sang Shin
This paper proposes a trajectory optimization approach for multi-sensor multi-target search and tracking using bearing-only sensors. Based on the framework of the joint integrated probabilistic data association (JIPDA) filter, the intensity of potential ...
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Nagyum Kim, Cheolpyo Hong, Changwoo Lee and Hyo-Min Cho
The purpose of this study was to create a Doppler ultrasound training phantom aimed at aiding beginners in comprehending and effectively utilizing critical parameters during the learning process. Our designed training phantom does not require the use of ...
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Kalupahanage Dilusha Malintha De Silva and Hyo Jong Lee
Aerial images are important for monitoring land cover and land resource management. An aerial imaging source which keeps its position at a higher altitude, and which has a considerable duration of airtime, employs wireless communications for sending imag...
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Hyo-Yeon Jang and Cheol-Hong Hwang
Photoelectric smoke detectors are used for early detection of building fires, and sensitivity adjustment is generally performed using white smoke generated by the burning of filter paper. Therefore, when black smoke of the same concentration is introduce...
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Young-Hak Lee, Soichiro Yamakawa, Tetsuo Tobita, Hyuk-Kee Hong, Hyo-Sung Song, Jae-Jung Kim and Dal-Won Lee
This study examines the effectiveness of parapets in preventing overtopping failures of small-scale homogeneous reservoir dams under seismic loads. In this study, a parapet covered the entire width of the dam crest and was designed to ensure its weight i...
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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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