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Ha-Kyung Kim, In-Hwan Cho, Eun-A Hwang, Byung-Hun Han and Baik-Ho Kim
This paper reviews the evolution and integration of diatom-based water quality assessments with environmental DNA (eDNA) techniques for advancing river ecosystem health evaluations. Traditional methods, relying on microscopy and diatom indices, have sign...
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Hyun-joong Kim, Yeong-hun Seong, Jong-wook Han, Seung-hee Kwon and Chul-young Kim
Deteriorated facility maintenance is a critical social issue in advanced countries. Its cost increases when considering the social consequences in terms of asset value and direct maintenance costs. Data from Korea?s Ministry of Land, Infrastructure, and ...
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Pyounghwa Kim, Whi Seok Han, Jeong Hun Kim, Jeonghwa Lee, Young Jong Kang and Seungjun Kim
High-voltage transmission towers consist of structures that are designed to avoid the risk of electric shock and prevent the risk of collapse. Hence, for efficiency, they are generally designed as high-rise towers. The main tower posts are the primary st...
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Sri Markumningsih, Seok-Joon Hwang, Jeong-Hun Kim, Moon-Kyeong Jang and Ju-Seok Nam
Stress measurements play a crucial role in safety analyses of transplanting devices. Strain gauges for stress measurements during field tests can be expensive and time-consuming. The aim of this study was to investigate the stress on the transplanting de...
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Thinh Huynh, Dong-Hun Lee and Young-Bok Kim
In this study, we propose and analyze three designs of a novel aerial system that aims for autonomous firefighting missions in the body or border of water areas. In such areas, it is difficult and even dangerous for human firefighters, and firefighting r...
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Min Roh, Sang-Myeong Oh, Pil-Hun Chang, Hyun-Suk Kang and Hyung-Suk Kim
A regional wave forecasting system in East Asia, including the Korean Peninsula, was built based on WAVEWATCH III using offshore wind forecast data from the Global Data Assimilation Prediction System. The numerical simulations were performed on the sensi...
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Jong-Chan Baik, Youn-Kyung Choi, Hyeran Helen Jeon, Sung-Hun Kim, Seong-Sik Kim, Soo-Byung Park and Yong-Il Kim
Introduction: This retrospective study aimed to determine skeletal and dental changes after a growth spurt and shortly after treatment using a facemask in skeletal Class III malocclusion with maxillary deficiency. Methods: We retrospectively studied 50 p...
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Jeong-Hun Kim, Markumningsih Sri, Seok-Joon Hwang, Moon-Kyeong Jang, Seung-Jun Kim, Yun-Jeong Yang and Ju-Seok Nam
In this study, to evaluate the safety of the fastening device, which is a vulnerable part of the agricultural by-product collector, the stress in fastening devices was measured, and the operational and driving safety were analyzed by deriving the static ...
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Seung-Jun Kim, Hyeon-Seung Lee, Seok-Joon Hwang, Jeong-Hun Kim, Moon-Kyeong Jang and Ju-Seok Nam
In this study, we developed a monitoring system to accurately track the seeding rate and to identify the locations where the mechanical pot-seeding machine failed to sow seeds correctly. The monitoring system employs diverse image processing techniques, ...
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Yeong-Ho Kwak, Seung-Yong Kim, Young-Shin Go, Dong-Hun Lee, Ha-Yun Song, Sang Ok Chung, Jeong Bae Kim and Bohyung Choi
We integrated stomach content analysis (SCA) and stable isotope analysis (SIA) to understand ontogenetic niche shifts in the invasive freshwater fish, bluegill, Lepomis macrochirus, inhabiting the Yedang Reservoir in Korea. Based on the total length (TL)...
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