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71.
Lin X Matsuya S Nakagawa M Terada Y Ishikawa K 《Journal of materials science. Materials in medicine》2008,19(2):479-484
We have reported that low-crystalline porous calcite block, which is useful as a bone substitute or a source material to prepare
apatite-type bone fillers could be fabricated by exposing calcium hydroxide compact to carbon dioxide gas saturated with water
vapor. In the present study, we investigated the effect of molding pressure on the transformation of calcium hydroxide into
calcite and the mechanical strength of the carbonated compact. Transformation into calcite was almost completed within 72 h,
however, a small amount of Ca(OH)2 still remained unreacted at higher molding pressure because of incomplete penetration of CO2 gas into the interparticle space due to dense packing of Ca(OH)2 particles. On the other hand, high molding pressure resulted in an increase in diametral tensile strength (DTS) of the calcite
compact formed. Critical porosity of the calcite block was calculated as approximately 68%. 相似文献
72.
73.
74.
町屋是日本传统的联排别墅形式,从江户时代起盛行,目前京都还保留了一些町屋.京都町屋的特征之一是狭窄的正面和被称为"鳗鱼床"(Unaginonedoko)的深处.京都现在的町屋经常被改造成商店或旅馆. 相似文献
75.
Masaharu Seguchi 《Starch - St?rke》2001,53(9):408-413
Chlorination and heat treatment of wheat flour changes the surface character of starch granules from hydrophilic to hydrophobic, and high oil binding ability of the starch granules can be observed. It was suggested that the hydrophobicity, in case of chlorination, was due to chemical modification of the starch granule surface proteins, and, in case of heat treatment, due to conformational changes of the proteins. This hydrophobicity could be also obtained by aging (233 days at room temperature). The hydrophobicity of starch granules in batter is highly related to the springiness of pancake. Heat treated wheat starch granules can encapsulate flavor through their oil binding ability. 相似文献
76.
77.
Masaharu Takeda Hiroyuki Hiraishi Toshikazu Takesako Sumio Tanase Norio Gunge 《Yeast (Chichester, England)》1996,12(3):241-246
The 36K protein attached at the 5′ end of the linear DNA plasmid pGKL2 from the yeast Kluyveromyces lactis was first purified and characterized. The terminal protein was purified from cells (1 kg wet weight) by ammonium sulphate precipitation and two rounds of centrifugation to equilibrium in CsCl gradients. The pGKL2 was present only in the post-microsomal supernatant. Approximately 10 mg of the purified pGKL2 was recovered and digested with DNase I. The terminal protein (final ca. 0·8 mg) was homogeneous by electrophoresis and we determined the N-terminal amino acid sequence up to ten residues, showing that it existed in the cryptic N-terminal domain of pGKL2-ORF2 (DNA polymerase) sequence. 相似文献
78.
The Amylograph profile of dry‐heated (120°C, 120 min) wheat flour showed a drastic change, i.e. an earlier onset time and higher peak viscosity than that of a control. However, no difference in the size of the starch granules was observed between dry‐heated and normal starch at every temperature. Wheat flour was fractionated with acetic acid, and the separated prime starch (PS) and tailings (T) fractions were dry‐heated at 120°C for 30, 60, 90, and 120 min, respectively. There was almost no difference in the RVA and DSC profiles between PS and dry‐heated PS, and T and dry‐heated T fractions, i.e., dry heating of wheat flour did not change the structures of starch that would be related to onset time and peak viscosity in the Amylograph profile. We thus excluded the water solubles (WS) fractions from control and dry‐heated wheat flour, but the effect of dry heating on the Amylograph profile was not lost. Next, the gluten (G) fraction was excluded following WS fraction from these wheat flours, and Amylograph tests were performed. The Amylograph profiles in both wheat flours were almost coincidental, which showed that the G fraction in dry‐heated wheat flour caused the earlier onset time and higher peak viscosity. 相似文献
79.
Sasaki K Haruta S Ueno Y Ishii M Igarashi Y 《Journal of Bioscience and Bioengineering》2006,102(3):244-246
The population of methanogenic archaea in a packed-bed reactor was determined. A difference between populations on the supporting material and in effluent was observed at operation under a high organic loading rate and a short hydraulic retention time. This difference was characterized by the predominance of Methanosarcina sp. on the supporting material. 相似文献
80.
Kazunari Kuwahara Naho ItagakiKenta Nakahara Daisuke YamashitaGiichiro Uchida Kunihiro KamatakiKazunori Koga Masaharu Shiratani 《Thin solid films》2012,520(14):4674-4677
High quality epitaxial ZnO films on sapphire (110) plane have been fabricated on ZnO homo-buffer layers crystallized via solid-phase epitaxially (SPE). The SPE-ZnO films are fabricated by annealing of amorphous ZnON (a-ZnON) films deposited by RF magnetron sputtering. During annealing, the a-ZnON films are oxidized and converted to ZnO crystal. X-ray diffraction (XRD) analysis shows that the resultant films are epitaxially grown on the sapphire substrates. By using the SPE-ZnO films as homo-buffer layers, the ZnO films with high crystallinity, which are deposited by RF magnetron sputtering, are fabricated. The full width at half-maximum of XRD patterns for 2θ-ω and ω scan of (002) plane are 0.094° and 0.12°, respectively, being significantly small compared with 0.24° and 0.55° for the films without buffer layers. Thus utilizing SPE buffer layers is very promising to obtain epitaxial ZnO films with high crystallinity. 相似文献