Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Il-Su CHOI"'
Autor:
Md Nasim REZA, Mohammod ALI, Eliezel HABINEZA, Md Sazzadul KABIR, Md Shaha Nur KABIR, Seung-Jin LIM, Il-Su CHOI, Sun-Ok CHUNG
Publikováno v:
Spanish Journal of Agricultural Research, Vol 21, Iss 3 (2023)
Aim of study: To determine the optimal working speed of a gear-driven rotary planting mechanism for a self-propelled riding-type onion transplanter in order to choose an adequate forward speed for effective onion (Allium cepa L.) seedling planting.
Externí odkaz:
https://doaj.org/article/10e851d2f1714b07a01c3d1afe4057ce
Autor:
Ji-Tae Kim, Ho-Seop Lee, Jung-Ho Park, Jea-Keun Woo, Il-Su Choi, Young-Keun Kim, Seung-Je Cho, Chang-Sub Ha, Young-Jun Park
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-13 (2022)
Abstract The gearbox has the advantage of being able to change the torque and rotational speed according to the gear ratio and has high power transmission efficiency by transmitting power through the contact of the gear pair. When evaluating the stre
Externí odkaz:
https://doaj.org/article/b4d9d6a5e64643448a1fdcde9d8945b1
Autor:
Milon Chowdhury, Mohammod Ali, Eliezel Habineza, Md Nasim Reza, Md Shaha Nur Kabir, Seung-Jin Lim, Il-Su Choi, Sun-Ok Chung
Publikováno v:
Agriculture, Vol 13, Iss 3, p 652 (2023)
The rollover tendency of upland farm machinery needs to be carefully considered because upland crop fields are typically irregular, and accidents frequently result in injuries and even death to the operators. In this study, the rollover characteristi
Externí odkaz:
https://doaj.org/article/4c195c765e0a411fbfefe53795db7776
Autor:
Milon Chowdhury, Md Nasim Reza, Mohammod Ali, Md Shaha Nur Kabir, Shafik Kiraga, Seung-Jin Lim, Il-Su Choi, Sun-Ok Chung
Publikováno v:
Applied Sciences, Vol 13, Iss 3, p 1927 (2023)
Vibration assessment of upland crop machinery under development is essential because high vibrational exposures affect machine efficiency, service life of components, degradation of the working environment, and cause health risks to the operator. It
Externí odkaz:
https://doaj.org/article/b517906adae542898daa6573e6a643e6
Autor:
Md Nasim Reza, Md Nafiul Islam, Milon Chowdhury, Mohammod Ali, Sumaiya Islam, Shafik Kiraga, Seung-Jin Lim, Il-Su Choi, Sun-Ok Chung
Publikováno v:
Machines, Vol 9, Iss 9, p 183 (2021)
The purpose of this study was to develop a kinematic model of a gear-driven rotary planting mechanism for a self-propelled onion transplanter. The kinematic model was simulated using a commercial mechanical design and a simulation software package, a
Externí odkaz:
https://doaj.org/article/95ef365f0c6245068044e123aa52d088
Autor:
Wan-Soo Kim, Yong-Joo Kim, Seung-Min Baek, Seok-Pyo Moon, Nam-Gyu Lee, Yeon-Soo Kim, Seong-Un Park, Yong Choi, Young-Keun Kim, Il-Su Choi, Duck-Kyu Choi, Chang-Hyun Choi
Publikováno v:
Applied Sciences, Vol 10, Iss 24, p 8898 (2020)
The spiral bevel gear in a tractor, unlike the other gears in the transmission, is one of the most vulnerable gears in terms of fatigue life, as it is consistently driven throughout the operations of the tractor. Conventional fatigue life tests of tr
Externí odkaz:
https://doaj.org/article/e169765040704a6fa4787a7ed960f276
Autor:
Jea-Keun Woo, Il Su Choi, Seung-Hwa Yu, Hyeon-Jong Jun, Young-Tae Yun, Jeekeun Lee, Yong Choi, Reza Alidoost, Young-Keun Kim, Young-Hwa Kim
Publikováno v:
Journal of Biosystems Engineering. 45:272-280
This study aims to verify that the characteristics of the typical injection pumps and nozzles used in pesticide injection systems in current agricultural drones in Korea are consistent with those presented in the product specifications, and to provid
Autor:
Il-Su Choi, Young-Keun Kim, Yeon-Soo Kim, Wan-Soo Kim, Seungmin Baek, Seung-Yun Baek, Yong-Joo Kim, Yong Choi
Publikováno v:
Journal of Terramechanics. 91:285-296
The cone index (CI), as an indicator of the soil strength, is closely related to the traction performance of tractors. This study evaluates the traction performance of a tractor in terms of the CI during tillage. To analyze the traction performance,
Autor:
Nafiul Islam, Il-Su Choi, Nasim Reza, Milon Chowdhury, Seung-Jin Lim, Sun-Ok Chung, Shafik Kiraga, Mohammod Ali, Sumaiya Islam
Publikováno v:
Machines
Volume 9
Issue 9
Machines, Vol 9, Iss 183, p 183 (2021)
Volume 9
Issue 9
Machines, Vol 9, Iss 183, p 183 (2021)
The purpose of this study was to develop a kinematic model of a gear-driven rotary planting mechanism for a self-propelled onion transplanter. The kinematic model was simulated using a commercial mechanical design and a simulation software package, a
Autor:
Jea Keun Woo, Chang Sik Hyun, Na Rae Kang, Won Jae Lee, Young-Keun Kim, Yong Choi, Il Su Choi, Soo Nam Yoo
Publikováno v:
Journal of Biosystems Engineering. 44:12-17
Tractors are the basis of agricultural mechanization; however, there are restrictions on adjusting their wheel widths to adapt to cultivation styles required for various field crops. Further, it is difficult to confirm the state of work using a rear-