Materials Literature
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Recent studies on the martensitic transformations by precise crystal-structural analyses have been reviewed. Crystal structures of the B19′ and ζ′2 martensites in Ti–Ni and Au–Cd alloys, respectively, which had been controversial for a long time because of their complexity, and the γ′1 and γ′2 martensites in Cu–Al–Ni…
In order to establish a method for estimation of the wetting of ceramics accompanied by interfacial reaction, the authors’ previous work has been rearranged. The wetting was estimated using meniscography and an improved sessile drop method both of which were devised to measure the wetting from the initial contact. Usi…
The conceptual and mathematical difficulties associated with contact angle equilibrium are reviewed and analyzed. The main discussion is centered around the theory of the intrinsic contact angle and its dependence on the three-phase mutual interactions in the vicinity of the contact line. Rigorous thermodynamic deriva…
The quasistationary phase field model equations depending on the small parameter are considered. It is proved that these equations possess a family of the solutions, which converge to the solutions of the Stefan problem with surface tension as the small parameter tends to zero.
The purpose of this book is to provide a state-of-the-art picture of the field of radiation damage. It covers various topics extending from theoretical understanding of energy deposition and defect creation to industrial and nuclear applications.
A low viscosity perhydropolysilazane which is converted to Si-N ceramics with a 70-90wt% yield by pyrolyzing at temperatures above 800°C, was used as a matrix precursor. The preform of SiCw/Si-N composites was prepared by slip casting, and impregnated with the polysilazane. The impregnated specimen was cured at 100°-3…
Acid phosphatase activity was cytochemically detected at the ultrastructural level in the protozoan Bonamla ostreae, an intrahemocytic parasite of the flat oyster Ostrea edulis. Lead nitrate was used as capture agent for phosphate liberated during the hydrolysis of the substrate (cytidine 5' monophosphate). Lead phosp…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and solar energy storage property of polymers containing norbornadiene moietiesTakashi Iizawa, Chikara Hijikata, and Tadatomi NishikuboCite this: Macromolecules 1992, 25, 1, 21–26Publication Date (Print):January 1, 1992Publication History Published online1 May 2002…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLocal rotational degrees of freedom in nematic liquid-crystalline side-chain polymersHarald Pleiner and Helmut R. BrandCite this: Macromolecules 1992, 25, 2, 895–901Publication Date (Print):January 1, 1992Publication History Published online1 May 2002Published inissue 1 Janu…
Polypyrrole films containing alkylammonium groups have been deposited on ITO transparent electrodes and platinum electrodes by oxidative electropolymerisation of an N-substituted pyrrole monomer. These polymers exhibit anion-exchange behaviour that has been assessed with ferricyanide ions. The incorporation of tetra-a…
The structural and functional properties of lysozymes genetically deamidated at positions 103 (N103D) and 106 (N106D) were studied by a protein engineering technique. The wild-type and mutant lysozymes were expressed in Saccharomyces cerevisiae and purified from the cultivation medium in two steps by cation-exchange c…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMeasurement of the crystallinity of poly(β-hydroxybutyrate-co-β-hydroxyvalerate) copolymers by inverse gas chromatographyW. J. Orts, M. Romansky, and J. E. GuilletCite this: Macromolecules 1992, 25, 2, 949–953Publication Date (Print):January 1, 1992Publication History Publis…
CALPHAD, Computer Calculation of Phase Diagrams, has made significant accomplishments since 1970’s. In this paper, some examples of phase diagrams obtained by the CALPHAD method are presented. Especially, the microstructure design based on CALPHAD for magnetic materials is reviewed. The historical meaning and prospect…
ひずみエネルギー密度関数 (W関数) は, ゴムの力学的性質を記述する物質特性関数であり, ゴム弾性研究の基本となる関数であるが, 特にカーボンブラック補強ゴムのそれは実用上も同補強ゴムが構造部材として使用される場合が多く, その際の変形•応力解析に際してこの関数形が直接必要になる. しかし, その関数形はまだ完全には解明されていない. この論文ではカーボンブラック補強ゴムに焦点を絞ってW関数の近似関数を提出し, それの実験による求め方, 近似精度について検討した. 単純な近似関数(1)は一軸拘束二軸変形試験のみから求めることができる. C2, C3, C5, Nは定数.W(I1, I2)=C5(I1-3)+C2(I2-3)+C3…
Liquidus phase relationships at H2O-saturated and -undersaturated conditions and 2 kbar in the systems Qz–Or–Ab (SiO2–KAlSi3Os–NaAlSi3Os), Qz–Or–Ab–Al2O3, and subsystems are compared and discussed. In the peraluminous systems (i.e. when melts are saturated with respect to mullite) the liquidus temperatures are lowered…
Cubic boron nitride ( c ‐BN) was synthesized by the decomposition of Mg 3 BN 3 under high pressure and high temperature. The minimum pressure for c ‐BN synthesis was 4 GPa, which was 1 GPa lower than that of the conventional catalytic process. The decomposition of Mg 3 BN 3 was observed only when H 2 O was added. Ther…
Previous investigators of the theory of balloon formation in over-end unwinding of yarn from cylindrical packages have made the simplifying assumption that the yarn is inextensible. In this paper, the balloon equations for a linear elastic yarn are derived, and numerical solutions of these equations for small values o…
We have studied culture conditions which facilitate the growth of stable, non-proliferating, human umbilical vein endothelial cell (HUVEC) monolayers. Gelatin and fibronectin coatings, with or without glutaraldehyde cross-linking, on both plastic and glass were investigated for initial attachment of HUVEC and growth c…
The fluorescence quantum yield of the aminomethyltetraphenylporphyrin–tin(IV) compound, 1a–h is strongly influenced by pH in a bimodal manner owing to photoinduced electron transfer and axial ligand exchange processes.
Satoshi Nakamura, Rikizo Aono, Shin Mizutani, Tomonori Takashina, William D Grant, Koki Horikoshi; The Cell Surface Glycoprotein of Haloarcula japonica TR-