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Seo-Hoon Kim, Jung-Hun Lee, Jong-Hun Kim, Seung-Hwan Yoo and Hak-Geun Jeong
This paper reports on a feasibility study conducted to improve the in situ measurement accuracy of the air-surface temperature ratio (ASTR) method. The measured relative error rate was analyzed using the ISO 6946 [7.69 W/(m2·K)] and Kor...
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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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Hun Kim, Yang-Ho Lee, Nam-Kwon Kim and Inn-Kyu Kang
Zirconia, with its excellent mechanical strength and esthetics, has a growing potential for applications in dentistry and orthopedics. However, in order for zirconia to have a high affinity with bone tissue, the bioactivity of the surface must be further...
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Beom-Geun Jo, Young-Hun Park, Ki Hyun Kim, Su-Nam Kim and Min Hye Yang
Lobelia chinensis Lour. (L. chinensis) has traditionally been used as a treatment for snake bites, high fever, jaundice, edema, and diarrhea, and modern studies have reported its anti-inflammatory, antioxidant, and antiviral activities. L. chinensis cont...
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Md Rashedul Islam, Young-Hun Kim, Jae-Young Kim and Jong-Myon Kim
The proposed model of this paper is for the bearing fault diagnosis of industrial rotating machinery. Specifically, the general fault diagnosis model only can predict the bearing fault based on the predefined number of stored fault information. The propo...
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Jae-Hun Kim, Jae-Hyoung Lee, Jin-Young Kim and Sang Sub Kim
In this work, aligned TiO2 nanofibers (NFs) were synthesized using an electrospinning technique with a two-piece Al collector. The effects of processing parameters, including the calcination temperature, applied voltage, and needle-to-Al-collector distan...
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Meilan Jiang, Karpjoo Jeong, Jung-Hwan Park, Nan-Young Kim, Soon-Jin Hwang, Sang-Hun Kim
Pág. 1 - 26
Implemented by a national law, the National Aquatic Ecological Monitoring Program (NAEMP) has been assessing the ecological health status of surface waters, focusing on streams and rivers, in Korea since 2007. The program involves ecological monitoring o...
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Yadav Prasad Joshi, Eun-Hye Kim, Jong-Hun Kim, Ho Kim and Hae-Kwan Cheong
We assessed the association between climate factors and a number of aseptic meningitis cases in six metropolitan provinces of the Republic of Korea using a weekly number of cases from January 2002 to December 2012. Generalized linear quasi-Poisson models...
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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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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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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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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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Haksung Lee, Seok-Jae Kim, Bang-Hun Kang and Kwang-Seung Lee
The greenhouse foundation method requires a lower allowable bearing capacity compared to general buildings, but the high-spec and expensive prestressed high-strength concrete (PHC) pile reinforcement method is mainly applied. Therefore, the deep cement m...
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Jeong-Hun Kim, Markumningsih Sri and Ju-Seok Nam
In this study, the static safety factor and fatigue life of fastening devices of an agricultural by-product collector were evaluated under hard flat ground driving conditions. The strain gage-based measurement system was constructed, and the strain gage ...
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Sohee Kang, Adnan Haider, Kailash Chandra Gupta, Hun Kim and Innkyu Kang
Hydroxyapatite (HA) is a significant constituent of bones or teeth and is widely used as an artificial bone graft. It is often used to replace the lost bones or in reconstructing alveolar bones before dental implantation. HA with biological functions fin...
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Yeon-Hyeok Park, Mun-Shin Jo, Hun-Young Kim, Dai-Ho Ko and Hyun-Ung Oh
The on-board tilting mirror calibration mechanism has a mechanical driving part that helps to achieve the main functional modes of deployment and stow when calibrating a spaceborne imaging sensor. In general, it is necessary to consider a holding and rel...
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Jeong-Yeob Chae, Chanhyung Jeon, Pyeongjoong Kim, Naoki Hirose, Ahyoung Ku and Jae-Hun Park
Typhoon-induced strong winds can dramatically change the oceanic environment, occasionally resulting in sudden stratification changes. In July 2015, two consecutive typhoons, Chanhom and Nangka, passed over the Yellow and East/Japan Seas within a week. R...
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Min Roh, Hyung-Suk Kim, Pil-Hun Chang and Sang-Myeong Oh
A wave forecast numerical simulation was performed for Typhoon Lingling around the Korean Peninsula and in the East Asia region using sea winds from 24 members produced by the Ensemble Prediction System for Global (EPSG) of Korea Meteorological Administr...
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