• Title/Summary/Keyword: 등배

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Screening for Antagonistic Plants for Control of Phytophthora spp. in Soil (토양중(土壤中)의 Phytophthora spp. 방제(防除)를 위한 길항식물(桔抗植物)의 탐색)

  • Paik, Su-Bong
    • The Korean Journal of Mycology
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    • v.17 no.1
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    • pp.39-47
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    • 1989
  • Among 100 species in 54 families of plants tested, leaf extracts from Allium cepa, Allium sativum, Malussieboldii, Reynoutria japonia and Rheum coreanum were inhibitory on mycelium growth of phytophthora spp.. Especially, Allium sativum and Malus sieboldii were strongly inhibitory. Allium sativum, Malussieboldii and Rhem coreanum were strongly inhibitory on zoosporangium germination of P. capsici. Malus sieboldii only were strongly inhibitory on zoosporangium germination of P. nicotiana and P. infestans.And Malus sieboldii were strongly effected on disease control of these pathogens. These results indicate the possibility of finding antagonistic plants in the nature for the control of certain pathogens in soil.

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Adsorption Characteristic of Hydrogen and Methane on Activated Carbon (활성탄에 대한 수소화 메탄의 흡착특성)

  • Jin, Yinzhe;Choi, Dae-Ki;Row, Kyung-Ho
    • Transactions of the Korean hydrogen and new energy society
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    • v.16 no.4
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    • pp.307-314
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    • 2005
  • In this work, a static volumetric method was experimentally implemented to measure the adsorption isotherm of hydrogen and methane by the activated carbon. The equilibrium data of stationary phase and mobile phase were correlated into the Langmuir, Freundlich, Langmuir-Freundlich, and Toth isotherms, respectively. In addition, the comparison between prediction and experimental data was made. By a nonlinear regression analysis, the experimental parameters in the equilibrium isotherms were estimated and compared. Then, the linear and quadratic equations for pressure and temperature to adsorption amounts were expressed. The adsorption amounts were increased with the pressure increase and the temperature decrease.