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Seok-Joon Hwang and Ju-Seok Nam
Agricultural workers suffer from various physical problems and mental stress, including depression and insomnia. Various factors affect brain stress, including harsh agricultural working conditions. Further brain stress may also be due to changes in work...
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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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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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Soyoung Kim, Jung-Hwan In, Seon Hoon Kim, Karam Han, Dongkook Lim, Yun Sik Hwang, Kyung Min Lee and Ju Hyeon Choi
SiO2/Nb2O5 multilayer thin films were designed for the special application of an aviation lighting system emitting green light. For optical components in this system to meet requirements such as a high transmittance and durability, SiO2/Nb2O5 multilayer ...
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Jae Joong Kang, Hyun Ju Oh, Seok-Hyun Youn, Youngmin Park, Euihyun Kim, Hui Tae Joo and Jae Dong Hwang
The size of phytoplankton (a key primary producer in marine ecosystems) is known to influence the contribution of primary productivity and the upper trophic level of the food web. Therefore, it is essential to identify the dominant sizes of phytoplankton...
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Hyeon-Seok Seo, In-Ju Hwang and Youn-Jea Kim
Visualization of the heat transfer phenomena induced by the rapid heating of nickel sheets was carried out using a Mach?Zehnder interferometer (MZI) and a high-speed camera. This phenomenon may be an important factor in heat transfer phenomena when the w...
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Muhammad Umair Ahmad Khan, Abid Imran, Sanghwa Kim, Hyunho Hwang, Ji Yeong Lee, Sungon Lee and Byung-Ju Yi
Robotic grasping and manipulation.
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Seok-Joon Hwang and Ju-Seok Nam
In this study, an automatic accumulating equipment for a roller-type onion pot-seeding machine was developed. The developed accumulating equipment accumulates the pot trays that complete the seeding in multiple stages using a conveyor belt and elevator p...
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Seung Jin Maeng, Muhammad Azam, Hyung San Kim, Ju Ha Hwang
Pág. 1 - 20
Since the climatic features of South Korea are highly complex and time variable, spatio-temporal-based drought frequency analysis is a prerequisite for drought risk management. The spatial extent of drought risk analysis in a bivariate framework has scar...
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