Materials Literature
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Electron spectroscopy, combined with synchrotron radiation in the photon-energy range $h\ensuremath{\nu}\ensuremath{\simeq}60\ensuremath{-}190$ eV, was used to measure the angular distributions of Xe $5p$ and $5s$ photoelectrons and of ${N}_{4,5}\mathrm{OO}$ Auger electrons. The branching ratios and partial cross sect…
Formation of the ternary complex Met-tRNAi X eukaryotic initiation factor (eIF) 2 X GTP from eIF-2 X GDP requires exchange of GDP for GTP. However, at physiological Mg2+ concentrations, GDP is released from eIF-2 exceedingly slowly (Clemens, M.J., Pain, V.M., Wong, S.T., and Henshaw, E.C. (1982) Nature (Lond.) 296, 93…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStudy of electron distributions of molecular orbitals by Penning ionization electron spectroscopyKoichi Ohno, Hideki Mutoh, and Yoshiya HaradaCite this: J. Am. Chem. Soc. 1983, 105, 14, 4555–4561Publication Date (Print):July 1, 1983Publication History Published online1 May 2…
Oscillations in the time evolution of electron diffraction during MBE growth of GaAs are shown to be related to periodic variations in the step distributions on GaAs surfaces during epitaxial growth. Unintentionally doped GaAs surfaces were first prepared by MBE. Then the Ga flux is interrupted until an instrument lim…
Abstract The hyperfine fields at 57 Fe and at 119 Sn doped as a dilute impurity replacing Ge, in the new Heusler alloys Ru 2 FeGe and Rh 2 FeGe, are reported. The Mössbauer spectra at 119 Sn indicate preferential RGe (R = Ru, Rh) disorder like in other Ru and Rh based Heusler alloys. The hyperfine field value is cons…
Due to the great disparity between regeneration times for the larval salamander (40 days), axolotl (30+ days), newt (44 days), and adult salamander (155 to 370 days), a staging system was devised so correlative comparisons could be made between regenerative model systems. The sequence was based on two criteria: 1) the…
The temperature and concentration dependences of the proton spin-lattice relaxation time ${T}_{1}$, Knight shift $K$, and the lattice parameters were obtained for zirconium and titanium hydride samples having a wide variety of concentrations at temperatures where the relaxation rate was due primarily to interaction wi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDifferential scanning calorimetry analysis of natural rubber and related polyisoprenes. Measurement of the glass transition temperatureDavid R. Burfield and Kooi Ling LimCite this: Macromolecules 1983, 16, 7, 1170–1175Publication Date (Print):July 1, 1983Publication History…
In this work the magnetic flux distribution in the grain-oriented steel core transformer is investigated with the finite element method. A mathematical model (Model II) is obtained for the reluctivity tensor. The model, optimized by means of experimental values of the B-H curve, predicts different directions of the ma…
Abstract not Available.
Nearly all problems encountered in large High-temperature reactor power plants with respect to design and safety are related to the mere physical size of a larger reactor core. Our analyses show that it is feasible to subdivide a larger reactor core into modular units, analogous to the common practice of using several…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolybdenum chloro complexes in room-temperature chloroaluminate ionic liquids: stabilization of hexachloromolybdate(2-) and hexachloromolybdate(3-)Towner B. Scheffler, Charles L. Hussey, Kenneth R. Seddon, Christopher M. Kear, and Phillip D. ArmitageCite this: Inorg. Chem. 1…
Many optical properties are presented here in the reflection spectra for monodomain cholesterics of various cell thicknesses at various angles of incidence. It is reported for the first time that left-circularly polarized light incident on a left-handed helix gives rise to a beat structure in the subsidiary oscillatio…
Abstract Comparing an extended form of the Landau‐de Gennes model for the order parameter with the free elastic energy for the director field of a nematic liquid crystal the temperature dependence of the Frank elastic constants is found. The theoretical results are in agreement with both the recent measurements and wi…
Abstract The frequency dependences of the storage and loss shear moduli, G ′ and G ″, of pronase‐treated collagen dissolved in acetate buffer at pH 4.0 were measured at 17.0°C by use of the Birnboim‐Schrag multiple lumped resonator apparatus. Some of the solutions contained 70% glycerol. The infinite‐dilution moduli w…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHigh-spin .dblharw. low-spin transition in hexacoordinate complexes of iron(II) with monodentate 1-alkyltetrazole ligands: a variable-temperature Moessbauer, magnetic susceptibility, and far-infrared studyE. W. Mueller, J. Ensling, H. Spiering, and P. GuetlichCite this: Inor…
Measurements of the relative static permittivity ε of octylcyanobiphenyl (8CB) in the smectic A, the nematic and the isotropic phases between 22°C and 140°C are reported. The resolution of the measurements was better than 0.01% and the temperature stability was better than 0.01 °C. Detailed measurements have been carr…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLiquid crystalline polymers. 5. Liquid crystalline polyesters containing naphthalene ringsW. Jerome Jackson Jr.Cite this: Macromolecules 1983, 16, 7, 1027–1033Publication Date (Print):July 1, 1983Publication History Published online1 May 2002Published inissue 1 July 1983http…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPorphyrins. 44. Electronic states of cobalt, nickel, rhodium, and palladium complexesArtemis Antipas and Martin GoutermanCite this: J. Am. Chem. Soc. 1983, 105, 15, 4896–4901Publication Date (Print):July 1, 1983Publication History Published online1 May 2002Published inissue…
The integrated birefringence of a surfactant (C16H33NH2)-aligned methoxybenzylidene butylaniline cell as a function of applied magnetic field (up to 100 kG) has been measured. The Oseen and Frank elastic continuum theory and a generalized torque balance equation at the interface have been utilized for the calculation…