Keishi Ootsuka

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An analytical scheme for the separation of humic substances (HSs) and non-humic substances (non-HSs) was established to estimate the humification index (HI), which was defined as the ratio of HS carbon content to non-HS carbon content. The alkaline compost-extract contained a mixture of HSs and non-HSs, while acidification of the compost-extract resulted in(More)
The possibility of optimizing the composition and the structures of the nickel catalysts and the pretreatment and reaction conditions for carbon dioxide reforming with methane is investigated. The optimum catalyst and the pretreatment and reaction conditions are determined employing the orthogonal and uniform design methods. The optimum nickel catalyst(More)
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