Leonhard Walz、H. Paulus、W. Haase1985-01-01Journal of the Chemical Society Dalton Transactions
The crystal and molecular structures of the title compounds have been determined using three-dimensional X-ray diffractometer data and refined to a final R value of 0.0263 for bromo(3-dimethylaminopropan-1-olato)copper(II)(1), 0.0349 for chloro(3-dimethylaminopropan-1-olato)copper(II)(2), and 0.0268 for (3-diethylamin…
Metal complexes synthesis and propertiesMagnetism in coordination complexesMetal-Catalyzed Oxygenation Mechanisms
Thomas Jackson Rice、S. W. Buol、S. B. Weed1985-01-01Soil Science Society of America Journal
Abstract The chemical, morphological and mineralogical properties of two Enon sandy loam (fine, mixed, thermic Ultic Hapludalfs) soil‐saprolite profiles, one formed on gabbro and the other on metagabbro, are compared. Clay skins are scarce and stress cutans common in the argillic horizons of these soils. Iron‐manganes…
Geology and Paleoclimatology ResearchClay minerals and soil interactionsTherapeutic Uses of Natural Elements
Tor P. Schultz、G.D. McGinnis、Maria Silvia Bertran1985-01-01Journal of Wood Chemistry and Technology
Dynamic thermogravimetry (tga), differential thermogravimetry (dtg), and Fourier Transform-Infrared Spectroscopy (FT-IR) were performed on a variety of celluloses with different cyr3tallinities. The data were compared to the crystallinlty indices (C.I.) determined by X-ray diffraction. Highly significant correlations…
Natural Fiber Reinforced CompositesAdvanced Cellulose Research StudiesLignin and Wood Chemistry
F Bayer-Helms、H Darnedde、Ginka Exner1985-01-01Metrologia
"Zerodur", a glass ceramic, has been developed in order to have a material with an extremely small thermal expansion coefficient. The known physical properties are completed here by results on dimensional stability compiled over a number of years. Three samples of the material with different thermal histories show dif…
Glass properties and applicationsStructural Analysis of Composite Materials
J. M. Rubio González、C. Otero Areán1985-01-01Journal of the Chemical Society Dalton Transactions
A critical assessment is made of the calculation procedures currently used for determining the cation distribution in spinels from X-ray powder diffraction data. Both binary and ternary spinels are considered. It is shown that X-ray powder diffraction, in conjunction with appropriate computational methods, has enough…
Iron and Steelmaking ProcessesX-ray Diffraction in CrystallographyPigment Synthesis and Properties
Ying Xu、G.E. Thompson、G. C. Wood1985-01-01Transactions of the IMF
SummaryA systematic study of film growth on aluminium, over a wide range of anodizing conditions, encompassing barrier and porous-type films, has been undertaken to develop a more integrated theory of anodizing than previously possible. The broad findings are summarized, via schematic diagrams of film sections and imm…
Corrosion Behavior and InhibitionConcrete Corrosion and DurabilityAnodic Oxide Films and Nanostructures
Yoshiyuki Nakata、Tsugio Tadaki、Ken rsquo ichi Shimizu1985-01-01Transactions of the Japan Institute of Metals
Thermal cycling effects in a Cu-13.7 Al-4.0 Ni (mass%) alloy have been studied by optical and electron microscopy observations and X-ray diffraction. Transformation temperatures, Ms and Af, decrease gradually with increasing thermal cycles, the magnitude of the decrease reaching about 40 K after 10000 cycles. Martensi…
Microstructure and mechanical propertiesShape Memory Alloy TransformationsTitanium Alloys Microstructure and Properties
C.S. Athwal、K. H. Bayliss、R. Calder 等 4 位作者1985-01-01IEEE Transactions on Plasma Science
It has been experimentally demonstrated that micrometersized particles of graphite deposited on the surface of copper and niobium electrodes can promote the field emission of electrons in the range of 5-20 MV ·m-1. From measurements of the current-voltage characteristic, electron spectrum, and emission image of such s…
Carbon Nanotubes in CompositesSemiconductor materials and devicesElectron and X-Ray Spectroscopy Techniques
Tomofumi Santa、Takashi Mori、Masaaki Hirobe1985-01-01Chemical and Pharmaceutical Bulletin
Tetraphenylporphinatoiron (III) catalyzed the reductive activation of molecular oxygen in the presence of NaBH4 and Me4NOH. Several olefins were oxidized with this system and oxidized products were isolated in high yields.
Electrochemical sensors and biosensorsPorphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation Mechanisms
Kensuke Sakurai、Tokiyoshi Shibano、Koichi Kimura 等 4 位作者1985-01-01Sen i Gakkaishi
A chitosan film was newly prepared from the liquid crystal solution. The unit cell parameters of crystal were determined: a=8.67 Å, b=10.24 Å (fiber axis), c=8.92 Å, and β=92.6°. These parameters accorded with those of the (1-3) crystal reported previously within an experimental error. In addition, the packing of mole…
Nanocomposite Films for Food Packaging
Robert B. Meyer、Franklin Lonberg、Victor G. Taratuta 等 6 位作者1985-01-01Faraday Discussions of the Chemical Society
We summarize the current status of our studies of the macroscopic linear mechanical properties of nematic liquid crystals formed from solutions of rigid or semirigid rod-like polymers. The polymer system we have studied is a racemic mixture of poly(benzyl glutamate) dissolved in a mixture of dioxane and methylene chlo…
Liquid Crystal Research AdvancementsSurfactants and Colloidal Systems
V. V. Rusakov、M. I. Shliomis1985-01-01Journal de Physique Lettres
The Landau-de Gennes free energy expansion coefficients for nematic polymers are evaluated on the basis of a molecular-statistical model. It is proved that the obtained expansion provides a reliable qualitative description of the phase transition to the nematic state for polymers with arbitrary molecular length and ri…
Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsSynthesis and Properties of Aromatic Compounds
B. Laikhtman1985-01-01Physical review. B, Condensed matter
The general physical features and a mathematical description of spectral diffusion in glasses at low temperatures is considered. The condition is found for when spectral diffusion can be treated as a Markovian process. The physical reason for the Lorenzian form of a two-level system spectral line shape is considered.…
Material Dynamics and PropertiesGlass properties and applicationsSpectroscopy and Chemometric Analyses
作者信息未提供1985-01-01Zeitschrift für Kristallographie - Crystalline Materials
Abstract A neutron diffraction study at 20 K of a single crystal of scolecite (CaAl 2 Si 3 O 10 · 3H 2 O, a = 6.516(2), b = 18.948(3), c = 9.761(1) Å, β = 108.98(1)°; Cc , Z = 4, D c = 2.28 g/cm 3 ) utilized 2109 diffraction intensities from the Brookhaven National Laboratory High Flux Beam Reactor ( λ = 1.0505(1) Å,…
Zeolite Catalysis and SynthesisGlass properties and applicationsCrystal Structures and Properties
H. Yokota1985-01-01Journal of Applied Polymer Science
Abstract The mechanism of cellulose alkalization in isopropyl alcohol (IPA)–water–sodium hydroxide system was studied from the viewpoint of the selective distribution of sodium hydroxide between cellulose and the medium, and of the lattice transition of cellulose. A mixture of IPA, water, and sodium hydroxide spontane…
Biofuel production and bioconversionAdvanced Cellulose Research StudiesLignin and Wood Chemistry
R.W.D. Rowe1985-01-01Connective Tissue Research
Evidence is presented to support the view that the surface of a fascicle reflects the wave pattern of its constituent collagen fibrils. The wave pattern shows considerable variation within and between fascicles. Smooth continuous phase shifts in crimp angles and crimp lengths across the width and along the length of a…
Elasticity and Material ModelingAutomotive and Human Injury BiomechanicsCollagen: Extraction and Characterization
T D White1985-01-01Association of Asphalt Paving Technologists Proc
The Marshall Procedure as applied to design and control of asphalt mixtures used in the Department of Defense evolved during the period from World War II to the late 1950's. Motivation for its development came from a need for a mix design procedure to proportion aggregate and asphalt binder to sustain increasing wheel…
Engineering and Material Science ResearchTransport Systems and Technology
Josette Canceill、Mich�le Cesario、Andr� Collet 等 5 位作者1985-01-01Journal of the Chemical Society Chemical Communications
The Structure of a new bis-cyclotribenzyl cavitand, (2), forming an internal 1 : 1 Complex (‘cavitate’) with dichloromethane, has been determined by single X-ray crystallography.
Supramolecular Chemistry and ComplexesInnovative Microfluidic and Catalytic Techniques InnovationUltrasound and Cavitation Phenomena
M. Nieuwenhuizen、A. P. G. Kieboom、H. van Bekkum1985-01-01Starch - Stärke
Abstract A number of polysaccharides of the starch type, including maltodextrins and cyclodextrins and some other well‐known polysaccharides have been oxidized by periodate/chlorite (two‐step method) or hypochlorite (one‐step method), yielding ring‐opened polycarboxylates. The oxidation products from the starch type s…
Supramolecular Chemistry and Complexesbiodegradable polymer synthesis and propertiesLanthanide and Transition Metal Complexes
B. DE POORTER、Bernard Meunier1985-01-01Journal of the Chemical Society Perkin Transactions 2
Substitution of tetraphenylporphyrinatomanganese(III) complexes on the peripheral phenyl groups makes these compounds suitable as catalysts for the epoxidation of terminal olefins with mono-oxygen donors such as sodium or lithium hypochlorite and potassium hydrogen peroxomonosulphate in a biphasic system.
Molecular Sensors and Ion DetectionPorphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation Mechanisms