Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Hang-Goo Lee"'
Publikováno v:
Journal of the Korea Society of Environmental Restoration Technology. 18:115-125
【This study was carried out to analyze comparison of carbon storage and physicochemical properties of vegetation soil for extensive green rooftop established at Seoul National University in september 2013. For this study, 42 plots were made by 2 ki
Autor:
Hang-Goo Lee, Gwan-Soo Park, Dong Kun Lee, Eun-Heui Lee, Beom-Hwan Park, Myeoung-Hee Kim, Seong-Wan Jang, Sung-Ho Kil, Oh-Jung Kwon, Sang Jin Lee, Kwan-Woo Jang, Jun-Young Yoon
Publikováno v:
Journal of the Korea Society of Environmental Restoration Technology. 16:109-117
This study was carried out to investigate the changes of plant species and soil physicochemical properties on green roofs established at Seoul Women`s University in 2005, 2006 and 2007. The plant species and soil properties were investigated in 2013.
Autor:
Gwan-Soo Park, Gil-Nam Kang, Sang-Jin Lee, Hang-Goo Lee, Si-young Lee, Hee-Mun Chae, Shoji Ohga
Publikováno v:
Journal of the Faculty of Agriculture, Kyushu University. 55:73-76
This study was carried out to estimate annual carbon production by fine root in Pinus densiflora, Pinus koraiensis, Larix leptolepis and Quercus acutissima stands of Gongju region, Korea. Soil samples were taken at 0-30 cm, 30-60 cm, and 60-90 cm soi
Publikováno v:
IEEE Photonics Technology Letters. 18:664-666
We propose an automatic-gain-controlled Raman fiber amplifier/gain-clamped semiconductor optical amplifier. The amplifier uses a feedforward gain-control scheme to maintain the channel output power. The signal power after the optical amplifier is aut
An automatic gain-controlled Raman/gain-clamped SOA for metro WDM networks with changes in span loss
Publikováno v:
2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference.
An automatic gain-controlled Raman fiber amplifier/gain-clamped SOA using a feed-forward pump-control scheme is proposed. The output signal power is automatically controlled within 0.15 dB when the span loss changes from 16 dB to 26 dB.