Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Seok-Joon Hwang"'
Publikováno v:
Agriculture, Vol 13, Iss 12, p 2230 (2023)
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 transplantin
Externí odkaz:
https://doaj.org/article/7b15bb634bdb47768908b707838bf00c
Stress Simulation on Four-Bar Link-Type Transplanting Device of Semiautomatic Vegetable Transplanter
Publikováno v:
Agriculture, Vol 14, Iss 1, p 42 (2023)
The aim of this study is to analyze the stress exerted on a four-bar link-type transplanting device using two distinct methods: stress measurement performed during a field test and stress simulation. A field test is conducted to measure stress using
Externí odkaz:
https://doaj.org/article/4063dacf75df43a1b719381d124f4e6b
Autor:
Jeong-Hun Kim, Markumningsih Sri, Seok-Joon Hwang, Moon-Kyeong Jang, Seung-Jun Kim, Yun-Jeong Yang, Ju-Seok Nam
Publikováno v:
Agriculture, Vol 13, Iss 11, p 2064 (2023)
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 sta
Externí odkaz:
https://doaj.org/article/85d4866bc1f64ff18358820da492f865
Autor:
Seung-Jun Kim, Hyeon-Seung Lee, Seok-Joon Hwang, Jeong-Hun Kim, Moon-Kyeong Jang, Ju-Seok Nam
Publikováno v:
Agriculture, Vol 13, Iss 10, p 2000 (2023)
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 techniqu
Externí odkaz:
https://doaj.org/article/96ee495a90f94fde88ec98d5f0bc03e8
Autor:
Seok-Joon Hwang, Ju-Seok Nam
Publikováno v:
Agriculture, Vol 13, Iss 9, p 1801 (2023)
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
Externí odkaz:
https://doaj.org/article/6de17afdf34a40f7822d6a9551a5c2b5
Autor:
Sri Markumningsih, Seok-Joon Hwang, Jeong-Hun Kim, Moon-Kyeong Jang, Chang-Seop Shin, Ju-Seok Nam
Publikováno v:
Agriculture, Vol 13, Iss 3, p 588 (2023)
The consumed power and safety of cam and four-bar-link semi-automatic vegetable transplanters were analyzed and compared according to the engine speed and planting distances. A measurement system was constructed to obtain the torque, rotational speed
Externí odkaz:
https://doaj.org/article/2f88d6af9d0e4269b0120ed382506ac3
Publikováno v:
Agriculture, Vol 12, Iss 12, p 2097 (2022)
In this study, a pot autofeeding device for a biodegradable pot tray was developed. The tensile strength and bending strength were measured to identify the physical properties of the biodegradable pot tray. As a result of the measurement, the tensile
Externí odkaz:
https://doaj.org/article/728a71cdc2814fba964ec7dc10254ca6
Publikováno v:
Agronomy, Vol 12, Iss 12, p 3093 (2022)
The effects of the slope of the ground and the obstacle conditions on the lateral overturning/backward rollover of a tractor with an implement were analyzed through dynamic simulation. The tractor and implement’s 3D simulation model was constructed
Externí odkaz:
https://doaj.org/article/27e70cd3abeb455e8860ff21383a5a47
Publikováno v:
Agronomy, Vol 12, Iss 8, p 1890 (2022)
The goal of this research was to analyze the load and safety of the transplanting device of the 4-bar link type semi-automatic vegetable transplanter under different workload conditions. To measure the strain at the transplanting device, a load measu
Externí odkaz:
https://doaj.org/article/a3729eb3265646ba9c3cea7064c1a89c
Publikováno v:
Applied Sciences, Vol 12, Iss 1, p 43 (2021)
In this study, we have conducted a quasi-static lateral overturning test and derived a static falling down sidelong angle by using a miniature tractor model. We analyzed the lateral overturning condition of tractors theoretically by literature review
Externí odkaz:
https://doaj.org/article/4c735b4348664834857cb7c19ebbd2ab