Robert R. Gagnè、D. M. INGLE1981-02-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOne-electron-reduced nickel(II)-macrocyclic ligand complexes. Four-coordinate nickel(I) species and nickel(II)-ligand radical species which form paramagnetic, five-coordinate nickel(I) adductsRobert R. Gagne and D. Michael IngleCite this: Inorg. Chem. 1981, 20, 2, 420–425Pub…
Metal complexes synthesis and propertiesMagnetism in coordination complexesMetal-Catalyzed Oxygenation Mechanisms
Charles J. O’Connor、Ekk Sinn1981-02-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal structures and magnetic properties of cobalt(II) pyrazinecarboxylate and pyrazinedicarboxylate complexesCharles J. O'Connor and Ekk SinnCite this: Inorg. Chem. 1981, 20, 2, 545–551Publication Date (Print):February 1, 1981Publication History Published online1 May 2002…
Magnetism in coordination complexesSynthesis and Characterization of Heterocyclic Compounds
C. M. Brunette、Shaw Ling Hsu、William J. MacKnight 等 4 位作者1981-02-01Polymer Engineering and Science
Abstract A series of segmented polyurethanes based on hydroxylterminated polybutadienes (HTPBD) and their hydrogenated derivatives (HYPBD) has been synthesized. Thermal, mechanical, and spectroscopic studies were carried out over a wide temperature range to elucidate the structure‐property relationships existing in th…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer composites and self-healing
B. Samuels、Kasra Sotoudeh、R. T. Foley1981-02-01CORROSION
The inhibition of the corrosion of aluminum alloy 2024-T3 in sodium chloride solution was investigated from the view of the chemical species (complexes, compounds) possibly formed with aluminum ion. Four classes of compounds were considered: (I) As a basis for comparison, inorganic oxyanions, chromate, nitrate, perchl…
Corrosion Behavior and InhibitionConcrete Corrosion and DurabilityBauxite Residue and Utilization
Thomas N. Jackson、M. A. Tischler、K.D. Wise1981-02-01IEEE Electron Device Letters
An electrochemical technique allowing the protection of selected areas of silicon in ethylene diamine-based etchants is reported, and its application to the formation of silicon microstructures is described. Dissolution rates for passivated samples are less than 5 Å/minute, a factor of over 3000 times less than for un…
Semiconductor materials and devicesNanowire Synthesis and ApplicationsAnodic Oxide Films and Nanostructures
E. J. Patula1981-02-01ASME Journal of Heat and Mass Transfer
With the higher rolling speeds used in modern cold-rolling mills, proper roll cooling has become a critical factor in avoiding problems of excessive roll spalling and poor thermal crowning. Poor thermal crowning of rolls can severely affect the shape and profile of sheet and strip products. To determine the influence…
Microstructure and Mechanical Properties of SteelsMetallurgy and Material FormingMetal Alloys Wear and Properties
T.P. Desmond、George Winter、Teoman Peköz1981-02-01Journal of the Structural Division
An effective width approach is presented for predicting ultimate strengths of thin-walled compression elements with edge stiffeners. In conjunction with procedures for predicting ultimate strengths, a requirement for adequate stiffener rigidity is given. Stiffener adequacy is assessed as that stiffener rigidity for wh…
Structural Analysis of Composite MaterialsEngineering and Materials Science StudiesMaterial Properties and Applications
S. N. Omenyi、A. W. Neumann、Carel J. van Oss1981-02-01Journal of Applied Physics
This paper presents and discusses particle behavior at solidification fronts from a thermodynamic point of view. Engulfing or rejection of particles embedded in a melt by solidification fronts depends on whether such quantities as the free energy of adhesion or of engulfing are positive or negative. As the relevant en…
Material Dynamics and PropertiesMinerals Flotation and Separation TechniquesPickering emulsions and particle stabilization
Nicholas E. Dixon、W.G. Jackson、Martin J. Lancaster 等 5 位作者1981-02-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLabile (trifluoromethanesulfonato)cobalt(III) amine complexesNicholas E. Dixon, W. Gregory Jackson, Martin J. Lancaster, Geoffrey A. Lawrance, and Alan M. SargesonCite this: Inorg. Chem. 1981, 20, 2, 470–476Publication Date (Print):February 1, 1981Publication History Publish…
Corrosion Behavior and InhibitionInorganic and Organometallic ChemistryCO2 Reduction Techniques and Catalysts
H. Kneppe、F. Schneider1981-02-01Molecular crystals and liquid crystals
An experimental procedure is described which allows the determination of the viscosity coefficients η1, η2, η3 and η12 for nematic liquid crystals as a function of temperature. Errors which arise from the surface and the flow alignment are discussed in detail. The measurements are performed on the nematic liquid cryst…
Liquid Crystal Research AdvancementsMaterial Dynamics and PropertiesSurfactants and Colloidal Systems
John S. Howitt、Max R. Montierth1981-02-01SAE technical papers on CD-ROM/SAE technical paper series
<div class="htmlview paragraph">An innovative design of ceramic filter for diesel engine exhaust particulate matter is described. It is a cellular ceramic honeycomb with porous walls which act as the filter medium. Test results relating the effects of wall thickness, cell density, porosity, and filter volume on…
Catalytic Processes in Materials Science
Mary B. Kennedy、Paul Greengard1981-02-01Proceedings of the National Academy of Sciences
Two calcium-stimulated protein kinase activities (ATP:protein phosphotransferase, EC 2.7.1.37) that phosphorylate protein I, a specific synaptic protein, have been identified in homogenates of rat brain. One of these is found in both the particulate and cytosolic fractions and phosphorylates a region of protein I that…
Protein Kinase Regulation and GTPase SignalingMitochondrial Function and PathologyEnzyme Structure and Function
F. Gesmundo、F. Viani1981-02-01Journal of The Electrochemical Society
A generalized treatment of the parabolic oxidation of pure metals forming electronically semiconducting oxides containing different kinds of defects is developed by extending the Kröger approach to Wagner's theory of oxidation based on the analysis of the diffusion of lattice defects. Only oxides with defects in the c…
Solidification and crystal growth phenomenaMetallurgical Processes and Thermodynamics
M. J. Marrone1981-02-01Applied Physics Letters
The spectrum of the luminescence in silica core optical fibers under x-ray excitation has been observed to consist of two distinct emission bands at 450 and 650 nm. The contrasting dose-dependent behaviors of the two bands show that they are associated with different luminescent centers in the glass matrix. The applic…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsPhotodynamic Therapy Research Studies
Hiroji Katsuta、Kazuo Furukawa1981-02-01Journal of Nuclear Science and Technology
The permeation time-lag method have been used to determine the permeabilities, diffusion coefficients and solubilities of hydrogen and deuterium in type 304 stainless steel of three kinds of surface treated specimens; with oxide film, reduced by H2 gas and Pd coated. For the specimen with a thin oxide film the permeab…
Fusion materials and technologiesNuclear reactor physics and engineeringNuclear Materials and Properties
J. H. Kirkman1981-02-01Clays and Clay Minerals
Abstract As shown by scanning and transmission electron microscopy, halloysite in three rhyolitic tephras occurs as squat and elongate ellipsoids. Both morphologies are presumed to result from a similar lattice building mechanism. The squat ellipsoids form from allophane; the elongate ellipsoids form from feldspars. T…
Clay minerals and soil interactionsIron oxide chemistry and applicationsMineralogy and Gemology Studies
作者信息未提供1981-02-01Zeitschrift für Kristallographie - Crystalline Materials
Abstract Because of discrepancies in the literature a redetermination of the structure of talc Mg 3 [(OH) 2 Si 4 O 10 ] is reported. Space group of talc is P [unk] with lattice parameters a 0 = 529.1(3) pm, b 0 = 946.0(5) pm, c 0 = 529.0(3)pm, α = 98.68(5)°, β = 119.90(5)° and γ = 85.27(5)°, Z = 2. Transformation by a…
Crystal Structures and PropertiesSilicone and Siloxane ChemistryChemical Synthesis and Characterization
Rémi Fagard、I M London1981-02-01Proceedings of the National Academy of Sciences
In heme-deficient reticulocytes and their lysates, a heme-regulated inhibitor of protein synthesis is activated; this inhibitor is a cyclic AMP-independent protein kinase that specifically phosphorylates the alpha subunit of the eukaryotic initiation factor 2 (eIF-2 alpha). Heme regulates this kinase by inhibiting its…
RNA and protein synthesis mechanismsEndoplasmic Reticulum Stress and DiseaseEnzyme Structure and Function
Linus U. J. T. Ogbuji、T. E. Mitchell、A. H. Heuer 等 4 位作者1981-02-01Journal of the American Ceramic Society
Microstructural characterization of conventionally sintered, hot‐pressed, reaction‐sintered, and chemically vapor‐deposited polycrystalline SiC shows that the initial stages of the β→α transformation in the first three materials are similar, the process being dominated by the elimination of high‐energy β→α interfaces.…
Advanced ceramic materials synthesisSilicon Carbide Semiconductor TechnologiesAluminum Alloys Composites Properties
Wen‐Shao Chang1981-02-01Journal of the Structural Division
Semianalytical formulas are developed to predict scabbing and perforation thicknesses for reinforced concrete panels subjected to impacts by solid steel missiles. The scabbing thickness is defined as the thickness that is just enough to prevent the peeling off of the back face of the panel opposite to the face of impa…
High-Velocity Impact and Material BehaviorStructural Response to Dynamic LoadsEngineering and Material Science Research