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1.
TAKESHI KIKUCHT 《Journal of the American Ceramic Society》1977,60(3-4):148-150
The subsolidus phase equilibria in the system Bi2 O3 -TiO2 -Nb2 O5 at 1100°C were determined by solid-state reaction techniques and X-ray powder diffraction methods. The system was found to contain 4 ternary compounds, i.e. Bi3 TiNbO9 , Bi7 Ti4 NbO21 , a cubic pyrochlore solid solution having a compositional range of 3Bi2 O3 · x TiO2 (7– x )Nb2 O5 where x ranges from 2.3 to 6.75, and an unidentified phase, 4Bi2 O3 ·11TiO2 ·5Nb2 O5 . 相似文献
2.
TAKESHI TAKAMORI HIROKICHI SEO MINORU TASHIRO 《Journal of the American Ceramic Society》1969,52(11):582-585
Titanium-containing glasses were prepared by fusion of a base glass (BaO·B2 O3 SiO2 ) and TiO2 and/or Ti2 O3 in Ar. Their resistivities did not vary with melting time and temperature. Interaction of Ti4+ and Ti3+ in the glasses was deduced by spectroscopy, but the valence states in the batch compositions were preserved in the glasses, according to the chemical analysis. Glasses containing either Ti4+ or Ti3+ had very high resistivities, whereas the glass prepared by melting a mixture of a Ti4+ -containing and a Ti3+ -containing glass had much lower resistivity. All results confirmed the possibility of controlling the resistivity by batch composition for these glasses. 相似文献
3.
Takashi MINAMI Shohei ARAI Naoki KENMOCHI Hiroaki YASHIRO Chihiro TAKAHASHI Shinji KOBAYASHI Tohru MIZUUCHI Shinsuke OHSHIMA Satoshi YAMAMOTO Hiroyuki OKADA Kazunobu NAGASAKI Yuji NAKAMURA Kiyoshi HANATANI Shigeru KONOSHIMA Fumimichi SANO 《等离子体科学和技术》2013,(3):240-243
A new high repetition rate Nd:YAG Thomson scattering system is developed for the Heliotron J helical device.A main purpose of installing the new system is the temporal evolution measurement of a plasma profile for improved confinement physics such as the edge transport barrier (H-mode) or the internal transport barrier of the helical plasma.The system has 25 spatial points with ~10mm resolution.Two high repetition Nd:YAG lasers (>550mJ@ 50Hz) realize the measurement of the time evolution of the plasma profile with ~10ms time intervals.Scattered light is collected by a large concave mirror (D=800 mm,f/2.25) with a solid angle of ~100 mstr and transferred to interference filter polychromators by optical fiber bundles in a staircase form.The signal is amplified by newly designed fast preamplifiers with DC and AC output,which reduces the low frequency background noise.The signals are digitized with a multi-event QDC,fast gated integrators.The data acquisition is performed by a VME-based system operated by the CINOS. 相似文献
4.
5.
TAKESHI SANO SATOSHI F. NOGUCHI TAKAHIDE TSUCHIYA JUICHIRO J. MATSUMOTO 《Journal of food science》1989,54(2):258-264
To determine the contribution of tropomyosin to fish muscle gel characteristics, the gel properties of the tropomyosin-desensitized actomyosin system and of the tropomyosin-myosin system were investigated. For both systems, the indices of gel properties decreased considerably on increasing the tropomyosin content. Even when the two-step heating was carried out, the indices of gel properties decreased considerably on increasing the tropomyosin content. Tropomyosin negatively affected the gel formation of fish muscle and reduced the gel strength and elasticity of the fish muscle gels. 相似文献
6.
REVERSE OSMOSIS CONCENTRATION of GREEN TEA JUICE 总被引:1,自引:0,他引:1
The reverse osmosis concentration of green tea juice was attempted by using membranes prepared from different polymeric materials. the pore sizes of the membranes were also changed in order to investigate the effect of the pore size on the membrane performance. Special attention was focused on the removal of caffeine from the tea juice while retaining other components such as polyphenols and amino acids. Since severe membrane fouling was observed while tea juice was treated at high concentrations, an attempt was made to describe the membrane fouling by a modified gel model that includes the effect of the interaction between the membrane and the tea juice components. 相似文献
7.
Abstract Three programs develpoed to analyze data for liquid-liquid extraction of metal have been applied to the calculation of the stability constants of aqueous cadmium(II)-thiocyanato complexes by using the data for the extraction of tricaprylmethylammonium salt in benzene. The resulting stability constants of the aqueous thiocyanato complexes determined were: for the trial and error method log β1 = 2·97, log β2 = 3·70, log β3 =3·50 and log β4 =3·28; for the Gauss method log β1 = 2·91, log β2 = 3·70, log β3 =3·35 and log β4 = 3·29; for the Newton-Gauss method for log β1 = 2·47, log β2 =3·24, log β3 =2·29 and log β4 = 2·85 相似文献
8.
9.
YUJI NAGASHIMA HIIZU EBINA TAKASHI NAGAI MUNEHIKO TANAKA TAKESHI TAGUCHI 《Journal of food science》1992,57(4):916-916
Thermal gelation of squid mantle muscle was studied by means of gel strength measurement and SDS-polyacrylamide gel electrophoresis. The gel strength of thermally induced squid meat gel decreased when squid meat paste was heated in two steps (35°C for 30 min followed by 90°C for 30 min). This decrease in gel strength was effectively depressed by the addition of protease inhibitors such as ethylenediaminetetraacetic acid (EDTA), phenylmethylsulfonyl fluoride (PMSF), and soybean trypsin inhibitor, indicating that me-tallo- and/or serine-proteases were mainly involved in the deterioration of squid meat gel prepared by two-step heating. SDS-PAGE analysis demonstrated that EDTA or PMSF suppressed the degradation of myosin heavy chain. 相似文献
10.
TAKESHI TAKAMORI 《Journal of the American Ceramic Society》1978,61(9-10):434-438
Microstructural birefringence was observed by immersing microporous glass specimens in liquids with various refractive indices. The sign of the birefringence may be positive or negative depending on the base glass compositions, with the optic axis parallel to the direction of materials transport during leaching. The magnitude of the birefringence varies systematically as a function of the refractive index of the immersing liquid and depends on heat-treatment conditions of the base glass (possibly on soluble minor-phase compositions) as well as on leaching conditions (e.g. leaching temperatures and acid concentrations). This birefringence can be erased by soaking the specimens in a dilute alkali solution. Scanning electron micrographs before and after soaking indicate that the birefringence is created by the structural anisotropy of SiO2 gels produced as decomposed deposits from the soluble minor phase within the cavity of the silica skeleton. 相似文献