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The Effect of Active Labor Market Policies on Suicide Rates:: A Panel Data Analysis for 26 OECD Countries, 1980-2007; OECD26カ国1980~2007年のパネルデータ分析
In: Shakaigaku hyōron: Japanese sociological review, Band 65, Heft 1, S. 116-133
ISSN: 1884-2755
Modernization and Friendship
In: Shakaigaku hyōron: Japanese sociological review, Band 61, Heft 2, S. 130-149
ISSN: 1884-2755
Enhanced nitrogen removal by a combination of anammox and heterotrophic denitrification
In: Water and environment journal, Band 35, Heft 2, S. 740-747
ISSN: 1747-6593
AbstractThis study examines the removal of nitrogen from nitrate, which accumulates in the anammox process, during the heterotrophic denitrification (HD) reaction using organic compounds that were originally contained in the influent as electron donors. The experimental system comprises a single partial‐nitritation/anammox (PNA) reactor and HD reactor for biological oxygen demand (BOD) reduction that is placed in series before the PNA reactor. A portion of the effluent from the PNA reactor was allowed to flow back to the HD reactor. The nitrate concentration in the effluent from the PNA reactor reduced as the recirculation ratio increased and the maximum nitrogen removal efficiency (NRE) was optimized at a hydraulic retention time (HRT) of 3.0 hours in the HD reactor out of a total HRT of 36 hours at 4 backflow/influent, demonstrating an NRE of 95.4% that represented an enhancement of 1.24 times the NRE without recirculation in the flow path.
Posuto kōgyō shakai niokeru Higashiajia no kadai: rōdō, jendā, imin
In: Ritsumeikan daigaku sangyō shakai gakubu sōsetsu 50shūnen kinen gakujutsu sōsho
In: 立命館大学産業社会学部創設50周年記念学術叢書