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Prospects of Activated Sludge Process in Japan - Its Past, Present, and Future -
Masanori Fujita 한국습지학회 2007 한국습지학회지 Vol.9 No.1
Our life totally depends on activated sludgeprocess for treatment of wastewater: sewage and industrial wastewater. Activated sludge process was the epoch-making technology in Environmental field. One century has been almost passed since the process was developed in England, and the process is still on the development of improvement. Here, history of activated sludge process, its mechanismsof treating the wastewater, expectations that we had on the process in the past, and future image and possibility on the process were presented. By reviewing the events related to the process, we can foresee potentials for new possibility of activated sludge process.
Prospects of Activated Sludge Process in Japan - Its Past, Present, and Future -
Fujita, Masanori Korean Wetlands Society 2007 한국습지학회지 Vol.9 No.1
Our life totally depends on activated sludgeprocess for treatment of wastewater: sewage and industrial wastewater. Activated sludge process was the epoch-making technology in Environmental field. One century has been almost passed since the process was developed in England, and the process is still on the development of improvement. Here, history of activated sludge process, its mechanismsof treating the wastewater, expectations that we had on the process in the past, and future image and possibility on the process were presented. By reviewing the events related to the process, we can foresee potentials for new possibility of activated sludge process.
Masanori Arata,Norio Takahashi,Masafumi Fujita,Motoyasu Mochizuki,Takashi Araki,Takashi Hanai 전력전자학회 2012 JOURNAL OF POWER ELECTRONICS Vol.12 No.1
According to electrical output up rating of a permanent magnet motor and request to operate for a large variable speed range, resonance between structural natural vibration and electromagnetic force inside the motor can take place and make noise. This paper describes the mechanism of a resonance between them and noise lowering procedure by frequency shift when they are applied to the reluctance torque largely employed new motor named Permanent magnet Reluctance Motor (PRM).
Arata, Masanori,Takahashi, Norio,Fujita, Masafumi,Mochizuki, Motoyasu,Araki, Takashi,Hanai, Takashi The Korean Institute of Power Electronics 2012 JOURNAL OF POWER ELECTRONICS Vol.12 No.1
According to electrical output up rating of a permanent magnet motor and request to operate for a large variable speed range, resonance between structural natural vibration and electromagnetic force inside the motor can take place and make noise. This paper describes the mechanism of a resonance between them and noise lowering procedure by frequency shift when they are applied to the reluctance torque largely employed new motor named Permanent magnet Reluctance Motor (PRM).
Ho-doping Effect on the Incommensurate Magnetic Order in La1.88Sr0.12CuO4
Masaki Fujita,Masanori Enoki,Kenji Tsutsumi,Satoshi Iikubo,Kazuyoshi Yamada 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.12
We have performed elastic neutron scattering experiments on the superconductorLa1.85Ho0.03Sr0.12CuO4 to study the effect of substitution of a cation with a large magnetic momentat La site on the static spin correlation. In the Ho-free sample with a hole concentration of 0.12,the spatially-modulated magnetic order is known to be stabilized at temperature below Tspin 30K. In the present Ho-doped sample, we found the appearance of magnetic peaks at (0.5, 0.5 ± 0.119, 0) positions below Tspin 35 K, which is similar to the observation in the pristine sample. Furthermore, the volume-corrected intensities in the Ho-free and Ho-doped samples are comparable,suggesting a negligible effect of Ho-substitution at La sites. These results are quite a contrast tothe huge enhancement of the magnetic intensity and the increase of Tspin by substituting a comparableamounts of magnetic Fe3+ ions onto CuO2 planes. Therefore, the stability of the stripe orderinduced by the cation substitution is sensitive to the site at which the substitution occurs.
Essential protocols for in vitro evaluation of nanoparticle
Hitoshi Iwahashi,Masanori Horie,Keiko Nishio,Shigehisa Endoh,Haruhisa Kato,Katsuhide Fujita,Shinichi Kinugasa,Arisa Miyauchi,Ayako Nakamura,Junko Takahashi,Etsuo Niki,Yasukazu Yoshida,Junko Nakanishi 한국환경독성학회 2010 한국독성학회 심포지움 및 학술발표회 Vol.2010 No.11
Suk-heon An,Osami Nishida,Hirotusgu Fujita,Wataru Harano,Masao Hiroi,Masaaki Sato,Masanori Tashiro,Hyung-soo Kim 한국자동차공학회 2001 한국자동차공학회 Symposium Vol.- No.-
This research makes a new attempt to use the activated seawater by electrolysis in the wet serubber for the large diesel engine as a sort of post, exhaust gas treatment. By means of eletrolysis using the seawater, the activated alkaline water made by a negative pole is used to neutralize sulfuric oxide (SOx). carbon dioxide (CO₂) and carbon monoxide (CO) ete., but on the other hand the activated acidic water made by a positive pole oxidizes nitrie monoxides (HO) of exhaust gas to nitrie dioxides (NO₂), thus the NO₂ become dissolved into the seawater. Moreover, the particulate matter of exhaust emissions is forced into direct, contact with seawater. The results found that the high alkaline water of pH 10 was effective in reduction of SOx. CO₂ and above all else, the acidic water of pH 3 converted NO into NO₂ when compared with the other pH. Besides, it was also adequate to reduce the, particulate matter. This experiment believes that the way to reduce emissions from the marine diesel engines is to make it. attractive from an operating perspective, as well as an environmental perspective.<br/> <br/>