Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Ji Yeon Jeon"'
Publikováno v:
THE JOURNAL OF ASIAN STUDIES. 25:139-163
Publikováno v:
Korean Society for the Study of Vocational Education. 41:107-127
Publikováno v:
JSTS:Journal of Semiconductor Technology and Science. 16:754-759
A transformer feedback low-noise amplifier (LNA) is implemented in a standard 0.18 μm CMOS process, which exploits drain-to-gate transformer feedback technique for wideband input matching and operates across entire 3~5 GHz ultra-wideband (UWB). The
Publikováno v:
Journal of Korean Society of Rural Planning. 19:203-212
The aging of farm households has caused serious problems such as productivity slowdown and aggravated income polarization in South Korea. Urban-to-rural migration has been recently suggested as a measure to attenuate the aging of rural population and
Autor:
Yun Seong Eo, Ji Yeon Jeon, Hyung Cheol Park, Seung Hwan Jung, Woon Sung Choi, Hyung Geol Kim, Jeong-Geun Kim, Sang Gyun Kim
Publikováno v:
2016 46th European Microwave Conference (EuMC).
A radar sensor for high speed moving objects is implemented using single chip CMOS UWB IC. To reduce the measuring and processing time for the fast moving target, the reliable and low power consumed envelope detection architecture is used at the expe
Publikováno v:
2015 Asia-Pacific Microwave Conference (APMC).
A transformer feedback low-noise amplifier (LNA) is implemented in a standard 180nm CMOS process, which exploits drain-to-gate transformer feedback technique for wideband input matching and operates across entire 2.5 ∼ 6.8 GHz ultra-wideband (UWB).
Publikováno v:
Applied Sciences, Vol 13, Iss 1, p 334 (2022)
Acid hydrolysis treatment of kenaf outer bast fiber can produce pure cellulose content and hydrolyzed hemicellulose to monosaccharides. The effects of various reaction temperatures (110–130 °C), acid concentrations of sulfuric acid (0.25–1.00 N)
Externí odkaz:
https://doaj.org/article/609047b825d349968ac8602bca80f972
Autor:
Jin Woo Lee, Eun Jin Mo, Ji Eun Choi, Yang Hee Jo, Hari Jang, Ji Yeon Jeong, Qinghao Jin, Hee Nam Chung, Bang Yeon Hwang, Mi Kyeong Lee
Publikováno v:
Journal of Ginseng Research, Vol 40, Iss 3, Pp 229-236 (2016)
Background: Extraction conditions greatly affect composition, as well as biological activity. Therefore, optimization is essential for maximum efficacy. Methods: Korean Red Ginseng (KRG) was extracted under different conditions and antioxidant activi
Externí odkaz:
https://doaj.org/article/84c51390375143fc8928d2391e32878f
Autor:
Ji Yeon Jeong, Qing Liu, Seon Beom Kim, Yang Hee Jo, Eun Jin Mo, Hyo Hee Yang, Dae Hye Song, Bang Yeon Hwang, Mi Kyeong Lee
Publikováno v:
Molecules, Vol 20, Iss 5, Pp 8730-8741 (2015)
Melanin is a natural pigment that plays an important role in the protection of skin, however, hyperpigmentation cause by excessive levels of melatonin is associated with several problems. Therefore, melanogenesis inhibitory natural products have been
Externí odkaz:
https://doaj.org/article/575617ef9db940a4b43fd0289496872d
Autor:
Jin-Ha Yoon, Boowook Kim, Byung-Soon Choi, So Young Park, Hyun-Suk Kwag, In-Ah Kim, Ji Yeon Jeong
Publikováno v:
Safety and Health at Work, Vol 4, Iss 1, Pp 71-74 (2013)
Here, we present a case of lung cancer in a 48-year-old male horse trainer. To the best of our knowledge, this is the first such case report to include an exposure assessment of respirable crystalline silica (RCS) as a quartz. The trainer had no fami
Externí odkaz:
https://doaj.org/article/c2e74ada11f94068833a86627ae8e818