Materials Literature
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Pig heart DPN-dependent isocitrate dehydrogenase is heterogeneous on isoelectric focusing in 6 M urea. Under these conditions, three types of subunits (termed alpha, beta, and gamma), which have isoelectric points of about 5.7, 6.6, and 7.2, respectively, can be separated. On the basis of densitometric scans of analyt…
Extended X-ray absorption fine structure (EXAFS) results are presented for solid and liquid Zn for the temperature range 273 to 782 K. At the higher temperatures the distribution of nearest neighbour atoms is asymmetric. Neglect of the asymmetry and use of EXAFS analysis methods developed for symmetric distribution fu…
Differential cross sections of electrons elastically (vibrationally) scattered from ${\mathrm{N}}_{2}$ have been measured by a crossed-beam method. Energy and angular range of the measurements are 1.5 to 400 eV and -96\ifmmode^\circ\else\textdegree\fi{} to + 156\ifmmode^\circ\else\textdegree\fi{}, respectively, with a…
The self‐diffusion coefficients of 14 C in high‐purity, essentially intrinsic and N‐doped, n ‐type α‐SiC single crystals were measured at 2123 to 2453 K. The Si 14 C tracer was chemically bonded by a traveling solvent technique. The D c * in the doped crystals is smaller than that of the pure materials because of the…
In this paper a theory is presented of antiferromagnetic superconductors in which a spin-density wave (SDW) ordering with a wave vector $\stackrel{\ensuremath{\rightarrow}}{\mathrm{Q}}$ may coexist with superconductivity. The effect of the antiferromagnetic molecular field ${h}_{Q}(T)$ on the Cooper pairing is studied…
Abstract Fourier‐transform (FT) infrared spectroscopy has been applied to the study the hydrothermal degradation of various coupling agents on E‐glass fibers. The coupling agents studied include γ‐methacryloxypropyltrimethoxysilane, vinyltrimethoxysilane, and cyclohexyltrimethoxysilane. The amount of coupling agents o…
Liquid Se has been investigated by $^{77}\mathrm{Se}$ NMR from the supercooled liquid (193\ifmmode^\circ\else\textdegree\fi{}C) to the supercritical fluid (1625\ifmmode^\circ\else\textdegree\fi{}C) and at pressures up to 790 bars. The resonance shifts and nuclear relaxation observed between roughly 400 and 1550\ifmmod…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTransferability of ligand field parameters and nonlinear ligation in chromium(III) complexesJ. Glerup, O. Monsted, and C. E. SchaefferCite this: Inorg. Chem. 1980, 19, 9, 2855–2857Publication Date (Print):September 1, 1980Publication History Published online1 May 2002Publish…
It has been found that passive iron undergoes pitting in potentiodynamic reduction, and the pit formation is a function of scan rate, pH, chloride ion concentration, and formation potential of the passive film. Pitting potential was concluded to be a mixed potential being determined by the coupling of the cathodic red…
RF sputtered films of FexSi1-x, wherex \approx .7, deposited on YZ-LiNbO3, have been used for magnetically variable surface acoustic wave devices. A 1 micron thick film one cm long in the SAW propagation direction had a relative SAW velocity change of 0.02% at 63 MHz and 0.05% at 189 MHz for applied fields of less tha…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpin state dependent redox properties of the [Fe(III)(X-sal)2trien]+ spin-equilibrium system in solutionKarl M. Kadish, K. Das, D. Schaeper, Connie L. Merrill, Byron R. Welch, and Lon J. WilsonCite this: Inorg. Chem. 1980, 19, 9, 2816–2821Publication Date (Print):September 1…
Composition and properties of Sm2-xHRExCO10Cu1.5Fe3.2Zr0.2(HRE=Gd,Tb,Dy,Ho,Er) magnets have been investigated. All alloy powders used in this study were made by the Reduction-Diffusion (R/D) process. The results indicate that Er or Gd-containing magnets have higher magnetic properties than Tb,Dy or Ho-containing magne…
"The Optical Design of Reflectors." Optica Acta: International Journal of Optics, 27(9), p. 1305
An ac calorimetric study of binary mixtures of octyloxycyanobiphenyl (80CB) and hexyloxycyanobiphenyl (6OCB) reveals that the magnitude of the ${C}_{p}$ peak associated with the nematic---smectic-$A$ (N-$\mathrm{Sm}A$) transition decreases strongly with increasing concentration of 6OCB. These data are consistent with…
Abstract Thin coats of flame‐retardant paints are unable to protect flammable substrates as there is not sufficient flame retardant in the thin coat to protect the substrate. Intumescent coatings foam and bubble when subjected to high temperatures and create multicellular cushions which prevent (a) heat from penetrati…
This paper reports a study of the effects of sulfur and phosphorus on the sensitization and intergranular corrosion of 304 stainless steel. It is shown that sulfur has little effect on the intergranular corrosion of the material, except at the high electrochemical potentials of the Huey test and oxalic acid test. At t…
Starting from an effective Fuchs-Sondheimer conduction model, the theoretical expression for the thermoelectric power of polycrystalline metal films is derived. From the approximate expression for thick films, a procedure is proposed to determine the variation in the electronic mean free path.
Solubilities of MgO in H 2 SO 4 solutions were measured and X‐ray analyses of over 100 neat cement samples were used to construct an isothermal phase diagram for the system MgO‐H 2 SO 4 ‐H 2 O at 23°±3°C. The phases MgO, Mg(OH) 2 , 3Mg(OH) 2 MgSO 4 ·8H 2 O (3·1·8), MgSO 4 ·7H 2 O, MgSO 4 ·6H 2 O, and MgSO 4 ·H 2 O wer…
Zinc oxide films, with a high degree of c-axis orientation, have been grown on glass substrates by a chemical vapor deposition process involving the oxidation of diethylzinc. Film growth was carried out over the 200–500 °C temperature range; however, the maximum crystal orientation was found to occur with substrate te…
The possibility of localization of a buckling pattern is investigated for a class of structures in which the initial buckling mode is periodic. A simple model indicates that the basic mechanism of localization involves a bifurcation at the maximum load point. This model also illustrates a clear analogy between localiz…