Muin S. Haddad、Scott R. Wilson、Derek J. Hodgson 等 4 位作者1981-01-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetic exchange interactions in binuclear copper(II) complexes with only a single hydroxo bridge: the x-ray structure of .mu.-hydroxo-tetrakis(2,2'-bipyridine)dicopper(II) perchlorateMuin S. Haddad, Scott R. Wilson, Derek J. Hodgson, and David N. HendricksonCite this: J. A…
Metal complexes synthesis and propertiesMagnetism in coordination complexesMetal-Catalyzed Oxygenation Mechanisms
H. Kronmüller、B. Gröger1981-01-01Journal de physique
Magnetic properties of the hysteresis loop of magnetostrictive amorphous ferromagnetic alloys are predominantly determined by the magnetoelastic coupling energy between the spontaneous magnetization and internal stresses. Domain structures as well as the pinning of domain walls are governed by long-range and short-ran…
Magnetic properties of thin filmsMetallic Glasses and Amorphous AlloysMagnetic Properties and Applications
Shuichi Miyazaki、Kazuhiro Otsuka、Hiroshi Sakamoto 等 4 位作者1981-01-01Transactions of the Japan Institute of Metals
The initiation and propagation of cracks during both quenching and deformation in polycrystalline Cu–Al–Ni alloys have been investigated under various conditions. The results obtained are summarized as follows; (1) Quenching-cracks may be avoided by choosing the temperature of quenching media close to or below the Ms…
Microstructure and Mechanical Properties of SteelsAdvanced Welding Techniques AnalysisShape Memory Alloy Transformations
Robert W. Work1981-01-01Biodiversity Heritage Library (Smithsonian Institution)
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Silk-based biomaterials and applicationsSpider Taxonomy and Behavior StudiesSilkworms and Sericulture Research
W. L. Hargrove、G. W. Thomas1981-01-01Soil Science Society of America Journal
Abstract The objective of this study was to compare extractabilities of Al from Al‐treated peats using KCl, CuCl 2 , and HCl to the total Al content determined after dry ashing. Results showed that Al extracted by CuCl 2 or HCl correlated well with the total amount of Al present in the system. On the other hand, 1 N K…
Recycling and utilization of industrial and municipal waste in materials productionClay minerals and soil interactions
K. A. Müller1981-01-01Journal de physique
A review is given of electron paramagnetic resonance (EPR) research of substitutional defects in ABO3 double oxides crystallizing in the perovskite structure. In section 2, the valency and lattice sites are considered. In section 3, the existence of transition metal-oxygen vacancy pairs, Me-Vo, is reviewed, and in 4,…
Perovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyNuclear materials and radiation effects
Anthony Harriman1981-01-01Journal of the Chemical Society Faraday Transactions 1 Physical Chemistry in Condensed Phases
The absorption spectra of paramagnetic transition metal porphyrins consist of (ππ*), charge-transfer and tripmultiplet transitions. The tripmultiplet states result from interaction between the metal d-orbitals and the porphyrin (ππ*) excited triplet states. For CuIITPP, luminescence occurs from the lowest energy tripq…
Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation Mechanisms
N. J. McCormíck1981-01-01Academic Press eBooks
Preface. Introduction. Methods. Probability Concepts. Probability Distributions for Describing Failures. Data Manipulation Concepts. Failure Data. Reliability of Simple Systems. Reliability and Availability of Systems with Repair. Fault Tree Analysis. Event Tree Analysis. Computer Programs for Fault Tree Analysis. Nuc…
Graphite, nuclear technology, radiation studiesNuclear and radioactivity studies
G.T. Burstein、D. Huw Davies1981-01-01Journal of The Electrochemical Society
A technique involving rapid scratching of rotating disk electrodes under potential control is presented and used to examine rapid reaction steps in the anodic behavior of iron in aqueous solutions of p H 0–14. Both anodic and cathodic reaction rates are greatly accelerated during scratching; current densities of up to…
Corrosion Behavior and InhibitionElectrodeposition and Electroless CoatingsElectrochemical Analysis and Applications
K. Czarniecka、Edward T. Samulski1981-01-01Molecular crystals and liquid crystals
In polypeptide liquid crystals deuterium NMR spectra of labeled guest molecules and labeled Polybenzylglutamate exhibit a characteristic doubling (anisochronism) of the quadrupolar splittings of enantiotopic deuterons. The anisochronism is a reflection of local chirality. For achiral guests the chirality is acquired i…
Liquid Crystal Research AdvancementsNonlinear Dynamics and Pattern FormationMolecular spectroscopy and chirality
Kinjiro Fujii、W. Kondo1981-01-01Journal of the Chemical Society Dalton Transactions
Calcium silicate hydrates (C–S–H), prepared at 20 °C and 50 °C to have various CaO : SiO2 molar ratios (n), were examined for their compositions with particular attention to the combined water contents and to their solubilities in water at 30 °C. The C–S–H gels may be described as solid solutions of the type nCaO·SiO2…
Calcium Carbonate Crystallization and InhibitionCO2 Sequestration and Geologic InteractionsClay minerals and soil interactions
D. Demus、A. Gloza、H. Hartung 等 6 位作者1981-01-01Kristall und Technik
Abstract 1,2‐Bis‐[4‐n‐alkyloxybenzoyl]‐hydrazines with the general formula magnified image possess smectic C phases and at lower temperatures additional optically isotropic phases. According to X‐ray investigations these isotropic phases show cubic symmetry. The lattice units consist of aggregations with micellar dime…
Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsPhotochemistry and Electron Transfer Studies
John D. Bunning、T. E. Faber、P. L. Sherrell1981-01-01Journal de physique
Measurements of the « splay » and « bend » constants for nematic 4'-n-pentyl-4-cyanobiphenyl are described. The method used was a conventional one, but particular care was taken to ensure reproducible and reliable results. The results are compared with those of previous authors and with predictions based on the mean f…
Liquid Crystal Research AdvancementsPhotonic Crystals and ApplicationsPhotochemistry and Electron Transfer Studies
Paul J. Darcy、H.G. Heller、Peter J. Strydom 等 4 位作者1981-01-01Journal of the Chemical Society Perkin Transactions 1
The pale yellow title compounds undergo reversible photochemical conrotatory electrocyclic reactions to give in quantitative yields deep red 7,7a-dihydrobenzo[b]furan-5,6-dicarboxylic anhydrides, which are stable at 100 °C. These photochromic systems, which have high quantum yields for photocolouration, are highly res…
Radical Photochemical ReactionsPhotochromic and Fluorescence ChemistrySynthesis of Organic Compounds
Erik Dick、Wilfred Watson1981-01-01IEEE Transactions on Power Apparatus and Systems
A variety of models has been developed to represent transformers in switching surge studies. However, there is a paucity of data on the characteristics of large power transformers to provide parameters for utilization in the models. This paper describes a low power field method of saturating large transformers and plo…
Lightning and Electromagnetic PhenomenaMagnetic Properties and ApplicationsPower Transformer Diagnostics and Insulation
Michael E. Aulton、M. H. Abdul-Razzak、John Hogan1981-01-01Drug Development and Industrial Pharmacy
The aim of this work is to examine the effects that certain plasticisers have on the properties of aqueous based hydroxypropylmethylcellulose (HPMC) films of a type used for film coating tablets, and to investigate whether or not the inclusion of these additives is in fact beneficial in all cases.The film former HPMC…
Drug Solubulity and Delivery SystemsAdvanced Polymer Synthesis and CharacterizationPolymer Science and PVC
Muin S. Haddad、Michael W. Lynch、Wayne D. Federer 等 4 位作者1981-01-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpin-crossover ferric complexes: curiosities observed for unperturbed solidsMuin S. Haddad, Michael W. Lynch, Wayne D. Federer, and David N. HendricksonCite this: Inorg. Chem. 1981, 20, 1, 123–131Publication Date (Print):January 1, 1981Publication History Published online1 M…
Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistryLanthanide and Transition Metal Complexes
Luis Alzamora、J.R.H. Ross、E.C. Kruissink 等 4 位作者1981-01-01Journal of the Chemical Society Faraday Transactions 1 Physical Chemistry in Condensed Phases
Results are presented for the total and metallic nickel areas of a series of coprecipitated nickel–alumina catalysts prepared and pretreated in different ways. The total areas of the samples decrease on reduction and with increasing reduction temperature, while the nickel area increases with reduction temperature. Inc…
Catalytic Processes in Materials ScienceCatalysts for Methane ReformingCatalysis and Hydrodesulfurization Studies
T.C. Arnoldussen1981-01-01Journal of The Electrochemical Society
Despite much investigation of the electrochromic (EC) coloration process in WO 3 films, such displays have not yet become commercially viable because of limited useful device life. Device degradation occurs by WO 3 film dissolution on the shelf and erosion during cycling. Water plays a crucial role in both efficient c…
Gas Sensing Nanomaterials and SensorsTransition Metal Oxide NanomaterialsPigment Synthesis and Properties
A. Frey‐Wyssling1981-01-01American Journal of Botany
Crystal forms and crystal structure of the metastable polyhydrate (weddellite) and the stable monohydrate (whewellite) occurring in plant cells are described and their formation as well as their physiological bearing are discussed.
Clay minerals and soil interactions