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81.
Makoto Saiki Thi Phuong Mai Nguyen Junko Shindo Kei Nishida 《Nutrient Cycling in Agroecosystems》2020,117(3):411-411
The article Nitrogen balance in paddy fields under flowing-irrigation condition, written by Makoto Saiki, Thi Phuong Mai Nguyen, Junko Shindo, Kei Nishida, was originally published Online First... 相似文献
82.
Long Wu Mine Tabuse Maki Miyamoto Junko Matsuki Koichi Yoza Ken Tokuyasu 《Biomass & bioenergy》2009,33(5):907-910
This paper discusses the sorption of cellooligosaccharides to activated clay in concentrated sulfuric acid solution. Cellobiose was sorbed to the clay in 72% (w/w) sulfuric acid but not in water; the sorption of glucose was not observed in both solutions. Hydrolysate of filter paper cellulose after 72% sulfuric acid treatment was also sorbed to the clay, and the sorbed sugars were partly released by diluting the mixture. The sorbed sugars could also be recovered in the form of d-glucose after hot dilute acid treatment of the sugar-acid-clay suspension. 相似文献
83.
Carbon oxidation with platinum supported catalysts 总被引:3,自引:0,他引:3
Junko Oi Uchisawa Akira Obuchi Zhen Zhao Satoshi Kushiyama 《Applied catalysis. B, Environmental》1998,18(3-4):L183-L187
The effect of the support oxide, Pt precursor and reactant gas composition on the catalysis of soot oxidation was investigated using carbon black as a model soot and simulated exhaust gases. The Pt precursors used were Pt(NH3)4(OH)2, H2PtCl6·6H2O, Pt(NH3)4(NO3)2, and Pt(NH3)4Cl2. The support metal oxides used were SiO2, Al2O3, and ZrO2. Pt/SiO2 prepared from Pt(NH3)4(OH)2 showed the highest carbon oxidation activity. It had much higher activity in the condition of N2+O2+H2O+NO+SO2 than without NO and SO2. 相似文献
84.
Junko Taniguchi Toshio Mouri Masaru Suzuki Mitsunori Hieda Tomoki Minoguchi 《Journal of Low Temperature Physics》2014,175(1-2):414-419
In the previous quartz crystal microbalance measurements for 4He films adsorbed on porous gold, we have observed a competition between superfluidity and slippage: In low areal densities, the resonance frequency increases gradually below T S due to the slippage of solid layer, while at high areal densities the slippage disappears and the superfluid onset of liquid overlayer is observed at T C . In the crossover region, the slippage below T S is suddenly suppressed at T D , which is much lower than T C . In the present work, we introduced a small amount of 3He onto 4He films, and studied the competition as a function of 3He areal density ρ 3. As ρ 3 is increased, T C is monotonically lowered. In contrast, T D increases up to a certain value of ρ 3, and then turns over to decrease in parallel to T C . 相似文献
85.
A super-hydrophobic film was successfully deposited on magnesium alloy AZ31 by the microwave plasma-enhanced chemical vapor deposition (MPECVD) process. The film surface showed a static water contact angle of more than 150°. The hydrophobicity and root mean square roughness of the film surface increased with an increase in deposition time. The anticorrosion resistance of the deposited film was estimated by electrochemical impedance spectroscopy (EIS) measurements. The EIS measurements and appropriate equivalent circuit models revealed that the super-hydrophobic film considerably improved the anticorrosion resistant performance of magnesium alloy AZ31. The anticorrosion mechanism of the super-hydrophobic film was also considered. Moreover, the chemical stability of the super-hydrophobic film in acidic, neutral, and alkaline aqueous solutions was investigated. The super-hydrophobic film showed high chemical stability in acidic and neutral aqueous solutions. 相似文献
86.
87.
88.
Koji Dohi Junko Isoyama-TanakaToru Tokuda Kazuhito Fujiyama 《Journal of Bioscience and Bioengineering》2010,109(4):388-391
The C-terminal catalytic domain of tobacco N-acetylglucosaminyltransferase I fused to maltose-binding protein was produced in Escherichia coli as a soluble form with significant activity. The protein was affinity-purified using amylose resin, and its enzymatic properties were investigated, including its divalent cation requirements, optimal temperature, optimal pH, and substrate specificity. 相似文献
89.
90.
Yonghwan KimMitsuo Niinomi Junko HiedaMasaaki Nakai Hisao Fukui 《Materials science & engineering. C, Materials for biological applications》2012,32(3):503-509
The relationship between the microstrucutural changes of L10-type ordered β′ phase and hardening behavior in as-solutionized dental Ag-Pd-Au-Cu alloys was investigated by changing the cooling rate and the solution treatment temperature. Additionally, the formation process of the β′ phase in as-solutionized Ag-Pd-Au-Cu alloy was attempted to clarify. The microstructural changes were observed by X-ray diffraction (XRD) method and transmission electron microscopy (TEM). The hardness was evaluated using a Vickers microhardness tester. The β′ phase is precipitated regardless of the cooling rate, after solution treatment at 1123 K. TEM dark field images show that the size of the β′ phase decreases and the number of β′ phase increases with an increase in the cooling rate. The Vickers hardness value increases with an increase in cooling rate. TEM dark field images show that the microstructure of β′ phase is similar when the solution treatment temperature increases from 1123 K to 1173 K. However, the Vickers hardness increases with an increase of solution treatment temperature. It is of great significance to reveal that the β′ phase precipitated in as-solutionized Ag-Pd-Au-Cu alloy is formed during cooling after high-temperature solution treatment and that the growth of the β′ phase is diffusion controlled. 相似文献