Materials Literature
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Phillips and Van Vechten have shown that, because of the high valence electron density in diamond type semiconductors, their vacancies may properly be treated as macroscopic cavities. With this model one may estimate the enthalpy of neutral vacancy formation, , as simply the surface energy of the cavity. Values of are…
X-ray diffraction measurements have been made on five nematogens in the nematic and isotropic liquid phases. The data have been interpreted to give information about the molecular packing. Two Schiff's bases R1 [MATH] CH = N [MATH] R2 : MBBA (R1 = CH3O, R2 = nC4H9) and EBBA (R1 = C2H5O, R2 = nC4H9) have very similar s…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPressure-Volume-Temperature Studies of Amorphous and Crystallizable Polymers. I. ExperimentalOlagoke Olabisi and Robert SimhaCite this: Macromolecules 1975, 8, 2, 206–210Publication Date (Print):March 1, 1975Publication History Published online1 May 2002Published inissue 1 M…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTESCA study of sputtered platinum filmsG. Michael. Bancroft, Ian. Adams, Leighton L. Coatsworth, C. David. Bennewitz, James D. Brown, and William D. WestwoodCite this: Anal. Chem. 1975, 47, 3, 586–588Publication Date (Print):March 1, 1975Publication History Published online1…
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A degradative acetolactate synthase (acetolactate pyruvate-lyase [carboxylating], EC 4.1.3.18) from Bacillus subtilis has been partially purified and characterized. The synthesis of the enzyme was induced by growth of cells in minimal medium plus isobutyrate or acetate. The enzyme was partially purified by ammonium su…
1. Electron microscopy, infra-red analysis and histochemical techniques have been used to determine the site of pigment deposition, the cellular localisation of pigment and the type of pigment precipitated in the egg shells of quail, White Leghorn, Brown Ranger and Black-Headed gull. 2. Transfer of pigment occurs via…
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The rhombohedral perovskites are of interest in lattice dynamics (e.g. LaAlO3, PrAlO3) and for their ferroelectric properties (e.g. LiNbO3, PbZr/TiO3). In this paper, data scattered through the literature are correlated, with correction of some misleading mistakes of calculation. Geometrical descriptions are put in a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermally Induced Phase Separation Behavior of Compatible Polymer MixturesT. Nishi, T. T. Wang, and T. K. KweiCite this: Macromolecules 1975, 8, 2, 227–234Publication Date (Print):March 1, 1975Publication History Published online1 May 2002Published inissue 1 March 1975https:…
We present extensive molecular-dynamics (MD) computations of the time-dependent correlation functions of the classical one-component plasma over a wide range of thermodynamic states characterized by the dimensionless parameter $\ensuremath{\Gamma}=\frac{{e}^{2}}{a{k}_{B}T}$, where $a$ is the ion-sphere radius. The com…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular Vibrations of Three Crystal Forms of Poly(vinylidene fluoride)Masamichi Kobayashi, Kohji Tashiro, and Hiroyuki TadokoroCite this: Macromolecules 1975, 8, 2, 158–171Publication Date (Print):March 1, 1975Publication History Published online1 May 2002Published inissue…