Zobrazeno 1 - 9 of 9 pro vyhledávání: '"Yeong Cheol Um"'
2
Integral $$\gamma$$-Sliding Mode Control for a Quadrotor with Uncertain Time-Varying Mass and External Disturbance
Autor: Ho-Lim Choi, Yeong-Cheol Um
Publikováno v: Journal of Electrical Engineering & Technology. 17:707-716
In this paper, we consider a robust control problem for a quadrotor that has uncertain time-varying mass and external disturbance. In solving our control problem, we suggest a new $$\gamma$$ -sliding mode controller coupled with an integrator to tack
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9259960814627b861cc01cb13521580c
https://doi.org/10.1007/s42835-021-00929-9
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5
Effect of Artificial Light Sources on Growth and Quality Characteristics of Leaf Lettuce in Closed Plant Factory System
Autor: Jun Gu Lee, Yoon Ah Jang, Yeong Cheol Um, Hye Jin Lee, Sang Gyu Lee, Sang Seok Oh, Chang Sun Choi
Publikováno v: Journal of Agriculture & Life Science. 47:23-32
The growth and quality of lettuce were evaluated in a plant factory system with three types of artificial lights including fluorescent lamp (FL), light-emitting diode (LED) and external electrode fluorescent lamp (EEFL). Air temperature, relative hum
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f4bdd2bedeb4fc1d69bbe1733e4dc382
https://doi.org/10.14397/jals.2013.47.6.23
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7
Influence of air temperature on yield and phytochemical content of red chicory and garland chrysanthemum grown in plant factory
Autor: Yoon Ah Jang, Hye Jin Lee, Sang Gyu Lee, Won Byoung Chae, Chang Sun Choi, Yeong Cheol Um, Hee Ju Lee, Jun Gu Lee
Publikováno v: Horticulture, Environment, and Biotechnology. 54:399-404
This study was conducted to improve the yield and quality of red chicory (Cichorium intybus L.) and garland chrysanthemum (Chrysanthemum coronarium L.) grown in a plant factory where fluorescent lamps were used as an artificial light source. Seeds of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::89d919ff861e94f9639213366f39fff6
https://doi.org/10.1007/s13580-013-0095-x
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8
Effects of air temperature and air flow rate control on the tipburn occurrence of leaf lettuce in a closed-type plant factory system
Autor: Yeong Cheol Um, Yoon Ah Jang, Suk Woo Jang, Sang Gyu Lee, Jun Gu Lee, Chang Sun Choi
Publikováno v: Horticulture, Environment, and Biotechnology. 54:303-310
This study aimed to establish a practical method to reduce tipburn symptoms on leaf lettuce cultivars in a closed plant factory system, focusing on air temperature conversion at specific plant growth stages and artificial air flow application strateg
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::19f5bf8339217b597edd3ebe2ff33f97
https://doi.org/10.1007/s13580-013-0031-0
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9
Quality Prediction of Kiwifruit Based on Near Infrared Spectroscopy
Autor: Ki Cheol Seong, Jin Su Lee, Seong-Cheol Kim, Yeong Cheol Um, Seung Koo Lee, Chun-Hwan Kim
Publikováno v: Korean Journal of Horticultural Science and Technology. 30:709-717
To establish the standard of ripe kiwifruit sorting, near infrared (NIR) spectroscopy was performed on kiwifruit sampled from three farms. Destructive measurements of flesh firmness, soluble solids content (SSC), and acidity were performed and compar
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1a61ee7388dae5625340c373ade3e778
https://doi.org/10.7235/hort.2012.12139
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