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Sanghee Kim, Donghyuk Jung, Ju-Yong Kim and Ju-Hyun Mun
Although accurately estimating the early age compressive strength of concrete is essential for the timely removal of formwork and the advancement of construction processes, it is challenging to estimate it in cool, cold, hot, or unmanaged conditions. Var...
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Seong Hyun Hong, Young Jin Kim, Soo Hyung Park, Sung Nam Jung and Ki Ro Kim
The air and structural loads of a 5-ton class light helicopter (LH) rotor in a 2.24 g pull-up maneuver are investigated using a coupling between the computational structural dynamics (CSD) and computational fluid dynamics (CFD) methods. The LH rotor is c...
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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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Byung-Jik Kim, Mohammad Nurunnabi, Tae-Hyun Kim and Se-Youn Jung
Although some previous studies have examined the impact of corporate social responsibility (CSR) on employees in an organization, they have mainly focused on employees’ perceptions or attitudes rather than behaviors. However, in that employees&rsqu...
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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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Donghae Baek, Il Won Seo, Jun Song Kim, Sung Hyun Jung and Yuyoung Choi
The dispersion coefficients are crucial in understanding the spreading of pollutant clouds in river flows, particularly in the context of the depth-averaged two-dimensional (2D) advection?dispersion equation (ADE). Traditionally, the 2D stream-tube routi...
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Hoang Hai Nguyen, Dae-Yun Shin, Woo-Sung Jung, Tae-Yeol Kim and Dae-Hyun Lee
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Jung-Ryel Choi, Jang Hyun Sung, Dong-Ho Kang, Kyung-Su Choo and Byung-Sik Kim
Most of Korea?s precipitation is concentrated between June and September, and 65% of the country?s territory is covered with mountains, which means there is less time for rainfall to reach the surface. These hydrological characteristics pose challenges i...
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Seung-Chan Baek, Jintak Oh, Hyun-Jung Woo, In-Ho Kim and Sejun Jang
Information on the location of cracks in concrete structures is an important factor enabling appropriate maintenance or reinforcement measures to be taken. Most studies related to concrete cracks are limited to crack detection and identification, and stu...
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Min-Ho Shin, Ji-Hyun Jung and Hwan-Yong Kim
Building information modeling (BIM) has opened up many possibilities for the construction industry. However, most studies focus mainly on its overall uses and management areas. By investigating real projects that could utilize BIM in the design phases fo...
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Hyun-Jung Kim
The aim of this study was a comparison of the micro-tensile bond strength (µTBS) to dentin and microleakage of in vitro class V restorations of three different ion-releasing restorative materials under various pH conditions: giomer, a resin-modified glas...
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Jaejoong Lee, Chiho Lee, Hyeon Hwi Lee, Kyung Tae Park, Hyun-Kyo Jung and Kangwook Kim
A new line-of-sight (LOS) decision algorithm applicable to simulation of electronic warfare (EW) is developed. For accurate simulation, the digital terrain elevation data (DTED) of the region to be analyzed must be reflected in the simulation, and millio...
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Yoonja Kang, Hyun-Jung Kim and Chang-Ho Moon
We examined the dynamics of dinoflagellate cyst and phytoplankton assemblages in eutrophic coastal waters of Korea, adjacent to fish and shellfish farms. Water temperature showed seasonality, whereas salinity and pH remained relatively consistent. Dissol...
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Jung-Eun Oh, Yeon S. Chang, Weon Mu Jeong, Ki Hyun Kim and Kyong Ho Ryu
Video monitoring systems (VMS) have been used for beach status observation but are not effective for examining detailed beach processes as they only measure changes to the shoreline and backshore. Here, we extracted longshore sediment transport (LST) fro...
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Sanghee Lee and Hyun Jung Kim
The aim of the study was to estimate the dietary exposure to acrylamide (AA) from the consumption of various processed food and to assess the associated health risks in different age groups in Korea. Potato crisps and French fries presented the highest m...
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Jung-Hyun Jo and Sihyun Kim
Since the introduction of containerization in 1956, its growth has led to a corresponding growth in the role of container seaborne traffic in world trade. To respond to such growth, requirements for setting up the common standards in various kinds of con...
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Ki-Chun Park, Van-Quang Nguyen, Jung-Hyun Kim, Duhee Park and Byoung-Han Choi
The settlement at the dam crest induced by earthquake loading is an important design parameter widely used to evaluate the seismic performance of dams. Two-dimensional nonlinear dynamic analyses were performed to calculate the dam crest settlement of ear...
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Ho-Seok Kwak, Jung-Yeol Han, Gideon Koren, Sang-Hee Jo and Ki-Hyun Kim
The health risks of cigarette smoking have been reported to increase continuously, while it is estimated to be responsible for the death toll of more than seven million people globally each year. In an effort to reduce the risk involved in cigarette smok...
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Young Jin Wi, Jong Hyun Kim, Jung Shin Lee and Joon Sang Lee
Microchannel flow boiling is a cooling method studied in microscale heat-cooling, which has become an important field of research with the development of high-density integrated circuits. The change in microchannel surface characteristics affects thermal...
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Saem Lee, Trung Thanh Nguyen, Hyun No Kim, Thomas Koellner and Hio-Jung Shin
In South Korea, the Soyang Lake is an important source of drinking water to the metropolitan areas including Seoul. However, water quality problems in the Soyang Lake have still remained due to chemical contaminations attributed to conventional farming p...
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