Jan M. Coddington、Michael J. Taylor1989-01-01Journal of the Chemical Society Dalton Transactions
The 119Sn chemical shifts of all ten trihalogenostannate(II) anions [SnClxBryIz]–(x+y+z= 3) are observed in diethyl ether extracts of tin(II) mixed-halide systems measured at –60°C. The tin(II) nuclear shielding order I < Br < Cl is the opposite of that found in tin(iv) halide systems. At room temperature, the tin res…
Crystal Structures and PropertiesRadioactive element chemistry and processingSolid-state spectroscopy and crystallography
Lewis Stevens、Doris Duncan、Patricia Robertson1989-01-01FEMS Microbiology Letters
NAD-Glutamate dehydrogenase has been purified from mycelia of A. nidulans. The enzyme comprises subunits of 110 kDa. It is located in the cytosol. It is completely denatured by 1.0 M guanidine hydrochloride, and is not renatured by subsequent dilution. Isophthalate is a strong competitive inhibitor and the enzyme is a…
Enzyme Structure and FunctionAmino Acid Enzymes and MetabolismGABA and Rice Research
Toribio F. Otero、E. de Larreta-Azelain1989-01-01Journal de Chimie Physique
L’emploi de différentes techniques électrochimiques nous a permis l’obtention de couches de polythiophène avec différentes morphologies, adhérences, brillances, etc. L’emploi de courant alternatif de fréquence croissante donne lieu à des structures de plus en plus plates, adhérentes et brillantes. Le résultat est simi…
Advanced Sensor and Energy Harvesting MaterialsConducting polymers and applicationsPolymer composites and self-healing
Hirotaka Honda、Takashi Matsuno、Masumi KOISHI1989-01-01Journal of the Society of Powder Technology Japan
This study deals with a surface modification method in a dry powder/powder handling system. The method is a dry impact blending method which is capable of changing an interactive mixture to composite or encapsulated particles. The effect of powder properties in this method was observed in terms of SEM observations.Nyl…
Polymer crystallization and propertiesHigh-Velocity Impact and Material BehaviorPolymer Foaming and Composites
S. Haussühl1989-01-01Zeitschrift für Kristallographie
Single crystals of guanidinium tetrafluoroborate of optical quality and dimensions up to 60 × 60 × 30 mm have been grown from aqueous solutions. They possess a distinct polar morphology of point symmetry group 3 m and strong pyroelectric, piezoelectric, electrooptic and nonlinear optic effects similar to those observe…
Crystal Structures and PropertiesNonlinear Optical Materials ResearchSolid-state spectroscopy and crystallography
M. Liniers、J. Flores、F. J. Bermejo 等 6 位作者1989-01-01IEEE Transactions on Magnetics
Magnetization versus temperature in the temperature interval 2-200 K was measured for amorphous alloys of three different compositions: Fe/sub 81.5/B/sub 14.5/Si/sub 4/, Fe/sub 40/Ni/sub 38/Mo/sub 4/B/sub 18/, and Co/sub 70/Fe/sub 5/Ni/sub 2/Mo/sub 3/B/sub 5/Si/sub 15/. The measurements were performed by means of a SQ…
Magnetic properties of thin filmsMetallic Glasses and Amorphous AlloysMagnetic Properties and Applications
Ajit Kumar Senapati、Sunil K. Narayanankutty、B. Pradhan 等 4 位作者1989-01-01International Journal of Polymeric Materials
The effect of fiber orientation, concentration and L/D ratio on the mechanical properties of short polyester fiber-natural rubber composites have been studied. High anisotropy in the mechanical properties were observed with respect to fiber orientation. Tensile strength, tear resistance and compression set were higher…
Mechanical Behavior of CompositesNatural Fiber Reinforced CompositesFiber-reinforced polymer composites
J. P. S. Badyal、Roger M. Nix、Trevor Rayment 等 4 位作者1989-01-01Faraday Discussions of the Chemical Society
Under appropriate conditions, single-crystal observations are capable of yielding information about reaction mechanisms and transport phenomena which can assist in understanding the behaviour of practical, high metal area, supported catalysts. In the case of chemical catalysis by metals, the literature contains a numb…
Catalytic Processes in Materials ScienceCatalysts for Methane ReformingCatalysis and Oxidation Reactions
M. T.、Baode Sun、Yo Tomota1989-01-01ISIJ International
To clarify the Bauschinger effect behavior in a dual phase steel and the influence of strain again on it, tension-compression tests were carried out using a Mn-V low alloy steel. This steel shows extremely large transient softening and considerable amount of permanent softening. The strain againg at 448 K has been fou…
Microstructure and Mechanical Properties of SteelsMagnetic Properties and ApplicationsMetallurgical and Alloy Processes
S. Sankarapapavinasam、F. Pushpanaden、M.F. Ahmed1989-01-01British Corrosion Journal
The effect of hydrazine (Hy) and substituted hydrazines (phenyl hydrazine (PHy ), 2,4-dinitrophenyl hydrazine (2,4-DNPHy), 4-nitrobenzoyl hydrazine (4-NBHy), and tosyl hydrazine (THy)) on the corrosion of lead in acetic acid has been investigated. The inhibitive efficiency ranking of these compounds from both weight l…
Corrosion Behavior and InhibitionConcrete Corrosion and Durability
Ting-Khai Kong、Diedrich Steffens1989-01-01Zeitschrift für Pflanzenernährung und Bodenkunde
Abstract An vier verschiedenen Böden (Basalt‐Braunerde, C‐Horizont einer Keuper‐Braunerde, Marschboden, Löß‐Parabraunerde) wurde untersucht, inwieweit in Wurzelnähe die Fraktionen des austauschbaren K und des HCl‐löslichen nichtaustauschbaren K durch den K‐Entzug von Weidelgras ( Lolium perenne ) abgesenkt werden. Nac…
Soil and Unsaturated FlowClay minerals and soil interactionsChemical Synthesis and Characterization
Richard M. Ede、Gösta Brunow1989-01-01Holzforschung
Article Formic Acid/Peroxyformic Acid Pulping. III. Condensation Reactions of ß-Aryl Ether Model Compounds in Formic Acid was published on January 1, 1989 in the journal Holzforschung (volume 43, issue 5).
biodegradable polymer synthesis and properties
I. Rüter、Hk. Müller‐Buschbaum1989-01-01Zeitschrift für anorganische und allgemeine Chemie
Abstract Mit Einkristall‐Röntgenbeugungsmethoden wurde an Ba 6 Dy 2 Al 4 O 15 ein neuer Strukturtyp gefunden. Es kristallisiert orthorhombisch, Raumgruppe D –Cmcm, a = 5,898; b = 10,183; c = 14,877 Å, Z = 2. Den Aufbau dieser Verbindung bestimmt ein BaO‐Gerüst mit einer 8+1‐Sauerstoffkoordination um Ba 2+ , ferner eck…
Luminescence Properties of Advanced MaterialsNuclear materials and radiation effectsInorganic Chemistry and Materials
Yi He Zhang、Liang Zhao、liu yanbin1989-01-01Chinese Physics Letters
The absorption spectra and fluorescence spectra of La 1-x Nd x P 5 O 14 (LNPP) glass were studied. The fluorescence from the level of interest 4 F 3/2 (1) state shows an exponential decay and linear concentration quenching. Time resolved fluorescence line narrowing was observed for LNPP glass with different x values.…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsQuantum optics and atomic interactions
M. Abdel‐Salam、Mohamed Th. El-Mohandes1989-01-01IEEE Transactions on Industry Applications
A combined method based on the finite-difference method (FDM) and the charge-simulation method (CSM) is proposed for electric field calculation. In this method, the entire field is divided into two domains, which are analyzed separately with FDM and CSM. These domains are coupled together using the continuity conditio…
High voltage insulation and dielectric phenomenaLightning and Electromagnetic PhenomenaAerosol Filtration and Electrostatic Precipitation
Lech Longa、Didier P. Monselesan、H-R. Trebin1989-01-01Liquid Crystals
Phase diagrams of chiral nematic liquid crystals are studied within the framework of a generalized Landau-Ginzburg-de Gennes theory. Using the parametrization of Grebel, Hornreich, and Shtrikman for the tensor order parameter Q, all relevant elastic terms are included for the helicoidal phase and the blue phases of ch…
Liquid Crystal Research AdvancementsPlant Reproductive BiologyMolecular spectroscopy and chirality
A. G. Mathewson、J.-P. Bacher、K. Booth 等 10 位作者1989-01-01Journal of Vacuum Science & Technology A Vacuum Surfaces and Films
Three chemical precleaning methods suitable for aluminum alloy vacuum chambers for electron storage rings have been compared. The methods ranged from vapor degreasing with no chemical attack to light alkaline etching and strong alkaline etching in NaOH. The techniques used to evaluate and compare the three treatments…
Particle Detector Development and PerformanceAdvancements in Photolithography TechniquesElectron and X-Ray Spectroscopy Techniques
Ursula Bossek、Thomas Weyhermüller、Karl Wieghardt 等 5 位作者1989-01-01Journal of the Chemical Society Chemical Communications
The hydrolysis reaction of a 1:1 mixture of LFeCl3 and LMnCl3(L =N,N′N″-trimethyl-1,4,7-triazacyclononane) in aqueous sodium acetate solution yields green [LFeIII(µ-O)(µ-MeCO2)2MnIIIL]2+(90%) which displays strong intramolecular antiferromagnetic exchange coupling (J=–145 cm–1) yielding a doublet ground state; an e.s.…
Metal complexes synthesis and propertiesMagnetism in coordination complexesMetal-Catalyzed Oxygenation Mechanisms
K. Balasubramanian、M. Z. Liao1989-01-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectronic states and potential energy surfaces of silver dihydride: comparison with gold dihydrideK. Balasubramanian and M. Z. LiaoCite this: J. Phys. Chem. 1989, 93, 1, 89–94Publication Date (Print):January 1, 1989Publication History Published online1 May 2002Published ini…
Advanced Chemical Physics StudiesHydrogen Storage and MaterialsAmmonia Synthesis and Nitrogen Reduction
Sutham Srilomsak1989-01-01ECS Proceedings Volumes
The thermal expansion of both the cathode and interconnect of the high temperature solid oxide fuel cell is reviewed. The influence of dopants such as Al, Mg and Sr are discussed. Data are presented which suggest that Sr doped LaCrO 3 matches the thermal expansion of zirconia best, but this composition is more suscept…
Advancements in Solid Oxide Fuel CellsMagnetic and transport properties of perovskites and related materialsCatalysis and Oxidation Reactions