José Luis Martı́nez Vidal、W. E. Walker、R. C. Schoening1981-01-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT[Rh10P(CO)22]3-. A transition-metal carbonyl cluster with a metal polyhedron based on the bicapped square antiprism as illustrated by the structural study of the benzyltriethylammonium saltJose L. Vidal, W. E. Walker, and R. C. SchoeningCite this: Inorg. Chem. 1981, 20, 1, 2…
Organometallic Complex Synthesis and CatalysisAsymmetric Hydrogenation and CatalysisNanocluster Synthesis and Applications
Joyce E. Jentoft、Thomas Gerken、Neil Jentoft 等 4 位作者1981-01-01Journal of Biological Chemistry
A unique resonance in the 13C NMR spectrum of [13C]methylated ribonuclease A has been assigned to a N epsilon, N-dimethylated active site residue, lysine 41. The chemical shift of this resonance was studied over the pH range 3 to 11, and the titration curve showed two inflection points, at pH 5.7 and 9.0. The higher p…
Protein Structure and DynamicsEnzyme Structure and FunctionBiochemical and Molecular Research
Jean-Marie Herrmann、Jean Disdier、Pierre Pichat1981-01-01Journal of the Chemical Society Faraday Transactions 1 Physical Chemistry in Condensed Phases
Using a cell designed to study the electronic interactions of gases with illuminated powders, the photoconductance, σ, of a series of oxides (TiO2, ZrO2, V2O5, ZnO, SnO2, Sb2O4, CeO2 and WO3) has been measured at equilibrium under various oxygen pressures PO2(from 7 × 102 down to 0.7 Pa) at room temperature in an atte…
Advanced Photocatalysis TechniquesCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions
Sadayuki Takahashi1981-01-01Japanese Journal of Applied Physics
The effects of doping with multiple impurities on the electromechanical properties of lead zirconate-titanate ceramics have been investigated from the viewpoint of the internal bias field. The internal bias field is strengthened by doping with the multiple acceptors K and Fe, but weakened by the multiple donors La and…
Ferroelectric and Piezoelectric MaterialsAcoustic Wave Resonator TechnologiesSemiconductor materials and interfaces
J. W. A. Van der Velden、F. A. Vollenbroek、J. J. Bour 等 6 位作者1981-01-01Recueil des Travaux Chimiques des Pays-Bas
Abstract The evaporation of metallic gold into an ethanolic solution of bis(diphenylphosphino)‐methane (dppmH) and NH 4 NO 3 results in the formation of [Au 5 (dppmH) 3 (dppm)](NO 3 ) 2 with (dppm) = [Ph 2 PCHPPh 2 ] − ; an X‐Ray structure analysis revealed the presence of a Au‐C bond. Full physical data, including 19…
Nanocluster Synthesis and ApplicationsNanomaterials for catalytic reactionsAdvanced Nanomaterials in Catalysis
M.B. Amin、J.R. James1981-01-01Radio and Electronic Engineer
The lack of suitable materials having permeabilities (μr) greater than unity at microwave frequencies has previously made it difficult to design thin coatings of broadband radar absorbersat this frequency range. A possible solution is to utilize the hexagonal ferrites that exhibit significant μrvalues (̃5) over narrow…
Electromagnetic wave absorption materials
Michael W. Allsopp1981-01-01Pure and Applied Chemistry
Conference International Symposium on Polyvinylchloride, Third, Cleveland, Ohio, USA, 1980-08-10–1980-08-15 Published Online: 2009-01-01 Published in Print: 1981-01-01 © 2013 Walter de Gruyter GmbH, Berlin/Boston
Polymer Science and PVC
Hiroshi Aoyama、Yoshifumi Yamazaki、N. Matsuura 等 5 位作者1981-01-01Molecular crystals and liquid crystals
Several kinds of the stretched polymer films, such as those of cellulose, polyvinylalcohol, and polyethylene are shown to have aligning capability for nematic liquid crystals (a mixture of cyanobiphenyls) in the direction of the stretching when the films are stretched over about 100%. Among them polyethylene is only o…
Liquid Crystal Research AdvancementsAdvanced Materials and MechanicsPlant Reproductive Biology
F. Solymosi、András Erdőhelyi、Tamás Bánsági1981-01-01Journal of the Chemical Society Faraday Transactions 1 Physical Chemistry in Condensed Phases
The interaction of H2+ CO2 has been investigated on Rh dispersed on MgO, TiO2, SiO2 and Al2O3 supports. The adsorption measurements revealed that, with the exception of Rh/SiO2, the presence of H2 greatly enhances the uptake of CO2 by Rh samples at 373 K. I.r. spectroscopic measurements showed that adsorbed CO and for…
Advanced Chemical Physics StudiesCatalytic Processes in Materials Sciencenanoparticles nucleation surface interactions
HS Isaacs、B. Vyas1981-01-01OpenAlex
The principles, advantages, and implementations of scanning reference electrode techniques are reviewed. The technique locates the position of localized corrosion, and can be used to monitor the development of corrosion and changes in the corrosion rate under a wide range of conditions. Data related to pitting, interg…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsConcrete Corrosion and Durability
Kei Sato、Fusako Sato1981-01-01American Journal of Physiology-Regulatory, Integrative and Comparative Physiology
Pharmacologic responsiveness of the eccrine sweat gland has never been studied under well-defined in vitro experimental conditions. Using isolated cannulated single monkey palm eccrine sweat glands, the dose response to both cholinergic and alpha- and beta-adrenergic agents and the effects of various antagonists on ag…
Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsSynthesis and properties of polymers
Hirofumi Yamasaki、Yoshihiro Kobori、Shuichi Naito 等 5 位作者1981-01-01Journal of the Chemical Society Faraday Transactions 1 Physical Chemistry in Condensed Phases
The amount and dynamic behaviour of adsorbed hydrocarbon species formed during the reaction of H2+ CO on Ru/SiO2 were measured by the in situ infrared spectroscopic technique using Fourier-transform methods; the average chain length (the CH2/CH3 ratio), and the dependences of the rate of accumulation of such hydrocarb…
Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceCatalysts for Methane Reforming
Taro Uchida、M. Wada1981-01-01Molecular crystals and liquid crystals
Eight modes of the guest-host cells (GH-cells), in which types of dye, liquid crystal and their alignments are adequately combined, are surveyed, and the color contrast of each mode is calculated. Three modes among them are of positive type display, that is, colored patterns on the colorless background contrary to the…
Photonic and Optical DevicesLiquid Crystal Research AdvancementsPhotonic Crystals and Applications
William John Sinclair、A. E. Ringwood1981-01-01GEOCHEMICAL JOURNAL
Zirconolite (CaZrTi2O7) and perovskite (CaTiO3) are key minerals in SYNROC, a ceramic material developed for the immobilization of high level nuclear reactor wastes. When these are incorporated in SYNROC, the long-lived radioactive actinide elements are preferentially partitioned into zirconolite and perovskite which…
Nuclear Materials and PropertiesIon-surface interactions and analysisNuclear materials and radiation effects
J. G. Bergman、D. S. Chemla、P. F. Liao 等 7 位作者1981-01-01Optics Letters
By using an evaporated silver film that has a continuously varying thickness, we have demonstrated the dependence of surface-enhanced Raman scattering (SERS) on the dielectric properties of the film. These results support local field models that are based on metal-particle resonances for SERS.
Gold and Silver Nanoparticles Synthesis and ApplicationsPlasmonic and Surface Plasmon ResearchNanocluster Synthesis and Applications
Robert M. Hill1981-01-01physica status solidi (b)
Abstract Simple algebra is sufficient to show that all the commonly accepted, empirical susceptibility relationships exhibit power laws as functions of frequency, in the limits of both low and high frequencies. The exponents of these power law relationships are presented and it is shown that simple relationships exist…
Material Dynamics and PropertiesThermodynamic properties of mixturesSpectroscopy and Quantum Chemical Studies
Nicholas C. Carpita、Deborah P. Delmer1981-01-01Journal of Biological Chemistry
The flow of carbon in vivo from glucose to cellulose in developing cotton fibers which were actively engaged in the deposition of a cellulosic secondary cell wall was traced. Steady state levels of nucleotide sugars were analyzed from developing cotton fibers harvested between 13 and 36 days post-anthesis (DPA). The U…
Advanced Cellulose Research StudiesPolysaccharides and Plant Cell WallsResearch in Cotton Cultivation
H.G. Heller、Stephen N. Oliver1981-01-01Journal of the Chemical Society Perkin Transactions 1
The title compound (6) undergoes photochemical conrotatory and thermal disrotatory ring-closure to give red 7,7a-dihydro-4,7,7-trimethylbenzo[b]furan-5,6-dicarboxylic anhydride (7,7a-DHBF)(8) in near quantitative yield. The latter ring-opens in a conrotatory mode to the title compound on exposure to white light, and s…
Radical Photochemical ReactionsPhotochromic and Fluorescence ChemistrySynthesis of Organic Compounds
M. P. Dare‐Edwards、John B. Goodenough、A. Hamnett 等 4 位作者1981-01-01Journal of the Chemical Society Faraday Transactions 2 Molecular and Chemical Physics
The electrochemistry and photoelectrochemistry of a (110) face of single-crystal lithiated NiO has been studied. The Mott–Schottky and photocurrent appearance potential suggest a flat-band potential of +0.8 V (NHE), and earlier capacitance data are used to fix a second acceptor level at +0.4 eV above the Li acceptor s…
Semiconductor materials and devicesTransition Metal Oxide NanomaterialsGa2O3 and related materials
János Kertész1981-01-01Journal de Physique Lettres
A Monte Carlo method is used to calculate the threshold of percolation of holes between overlapping spheres. At the critical volume fraction, 0.966 ± 0.007, corresponding to a dimensionless density of 0.81 ± 0.05 localization in the Lorentz model appears.
Phase Equilibria and ThermodynamicsMaterial Dynamics and PropertiesTheoretical and Computational Physics