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The synthesis and structure of tetrasodium tetramethoxyoctamolybdate-methanol complex (Na4[Mo8O24(OCH3)4].8MeOH): a novel isopolymolybdate that decomposes with the loss of formaldehyde

E. M. McCarron、Richard L. Harlow1983-09-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe synthesis and structure of tetrasodium tetramethoxyoctamolybdate-methanol complex (Na4[Mo8O24(OCH3)4].8MeOH): a novel isopolymolybdate that decomposes with the loss of formaldehydeE. M. McCarron III and R. L. Harlow ICite this: J. Am. Chem. Soc. 1983, 105, 19, 6179–6181P…

Polyoxometalates: Synthesis and ApplicationsCarbon dioxide utilization in catalysisInorganic Chemistry and Materials

Mechanical compatibilization of high density polyethylene–poly(ethylene terephthalate) blends

T. D. Traugott、J. W. Barlow、Donald R. Paul1983-09-01Journal of Applied Polymer Science

Blends of high density polyethylene (HDPE) and poly(ethylene terephthalate) (PET) exhibit extremely poor mechanical properties owing to the incompatibility of these two polymers. Such blends, however, would result from the reprocessing of certain carbonated beverage bottles. Addition of small amounts of a commercially…

Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesMaterial Properties and Processing

Ordered structure in block polymer solutions. 3. Concentration dependence of microdomains in nonselective solvents

Mitsuhiro Shibayama、Takeji Hashimoto、Hirokazu Hasegawa 等 4 位作者1983-09-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrdered structure in block polymer solutions. 3. Concentration dependence of microdomains in nonselective solventsMitsuhiro Shibayama, Takeji Hashimoto, Hirokazu Hasegawa, and Hiromichi KawaiCite this: Macromolecules 1983, 16, 9, 1427–1433Publication Date (Print):September 1…

Polymer crystallization and propertiesAdvanced Polymer Synthesis and CharacterizationSurfactants and Colloidal Systems

Silicon oxidation studies: A revised model for thermal oxidation

E. A. Irene1983-09-01Journal of Applied Physics

A number of recent experimental silicon oxidation studies has suggested that the present form of the linear-parabolic oxidation model is inadequate in explaining the results. However, the best available oxidation data are linear-parabolic in shape. The present study relieves this dilemma by revising the linear-parabol…

Semiconductor materials and devicesSilicon and Solar Cell TechnologiesSilicon Nanostructures and Photoluminescence

Surface characterization of copper(II) oxide-zinc oxide methanol-synthesis catalysts by x-ray photoelectron spectroscopy. 2. Reduced catalysts

Yasuaki Okamoto、Kiyotaka Fukino、Toshinobu Imanaka 等 4 位作者1983-09-01The Journal of Physical Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface characterization of copper(II) oxide-zinc oxide methanol-synthesis catalysts by x-ray photoelectron spectroscopy. 2. Reduced catalystsYasuaki Okamoto, Kiyotaka Fukino, Toshinobu Imanaka, and Shiichiro TeranishiCite this: J. Phys. Chem. 1983, 87, 19, 3747–3754Publicat…

Electron and X-Ray Spectroscopy Techniques

Crystal structure and magnetic properties of (.mu.-azido)-(.mu.-hydroxo)bis[(N,N,N'N'-tetramethylethylenediamine)copper(II)] perchlorate, a copper(II) dinuclear complex with a large ferromagnetic interaction

Olivier Kahn、Sonia Sikorav、Jacqueline Gouteron 等 5 位作者1983-09-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal structure and magnetic properties of (.mu.-azido)-(.mu.-hydroxo)bis[(N,N,N'N'-tetramethylethylenediamine)copper(II)] perchlorate, a copper(II) dinuclear complex with a large ferromagnetic interactionOlivier Kahn, Sonia Sikorav, Jacqueline Gouteron, Suzanne Jeannin, a…

Magnetism in coordination complexesLanthanide and Transition Metal ComplexesMetal-Catalyzed Oxygenation Mechanisms

DIATOM COLONIZATION ON ARTIFICIAL SUBSTRATA IN POOL AND RIFFLE ZONES STUDIED BY LIGHT AND SCANNING ELECTRON MICROSCOPY1

Virginia L. Korte、Dean W. Blinn1983-09-01Journal of Phycology

ABSTRACT Light and scanning electron microscopy were utilized to quality diatom colonization in Oak Creek, Arizona. Aluminum SEM stubs with and without plexiglass discs were anchored into rocks. Early colonization on five stub microzones was examined at hourly intervals; weekly intervals of up to 3 wk were employed to…

Aquatic Ecosystems and Phytoplankton DynamicsFreshwater macroinvertebrate diversity and ecologyDiatoms and Algae Research

Adhesion of Coagulase-negative Staphylococci to Biomaterials

A. H. Hogt、J. Dankert、J.A. de Vries 等 4 位作者1983-09-01Microbiology

The adhesion of two Staphylococcus epidermidis strains and one Staphylococcus saprophyticus strain on to poly(tetrafluorethylene-co-hexafluorpropylene) (FEP)-fluorocarbon and cellulose acetate was studied in vitro. Both S. epidermidis strains showed a more hydrophobic character than the encapsulated S. saprophyticus a…

Bacterial biofilms and quorum sensingPolymer Surface Interaction StudiesElectrostatics and Colloid Interactions

Effect of Initial Grain Size on Fission Gas Release from Irradiated UO 2 Fuel

I.J. Hastings1983-09-01Journal of the American Ceramic Society

Uranium dioxide fuel with initial grain sizes from 8 to 80 μm was irradiated at linear ratings of 50 to 65 kW/m to a maximum burnup of 230 MW*h/kg U (10000 MW.d/metric ton U). At a linear power of 50 kW/m, where grain growth is not significant, a large initial grain size reduced fission gas release; above 50 kW/m, the…

Nuclear reactor physics and engineeringRadioactive element chemistry and processingNuclear Materials and Properties

Wyckoff positions used for the classification of Bravais classes of modulated crystals

A. Janner、Τ. Janssen、Philippe Wolff1983-09-01Acta Crystallographica Section A Foundations of Crystallography

Wyckoff positions of centrosymmetric symmorphic space groups, if properly interpreted, can be used to derive the Bravais classes of modulated crystals. This program is worked out here for the incommensurate case and assuming that the modulation wave vectors are symmetry related, i.e. are (integral combinations of) vec…

Crystal Structures and PropertiesSolid-state spectroscopy and crystallographyOptical and Acousto-Optic Technologies

Physical degradation by water clustering in epoxy resins

C. Carfagna、Antonio Apicella1983-09-01Journal of Applied Polymer Science

Water uptakes in sorption experiments on thin sheets of epoxy resins have been explained on the basis of theoretical models. The occurrence of an irreversible void formation process at higher humidities induces strong deviations from the Flory–Huggins analysis. This phenomenon can be successfully explained on the basi…

Surface Modification and SuperhydrophobicityHigh voltage insulation and dielectric phenomenaMaterial Properties and Processing

Enhanced Raman scattering from silicon microstructures

Daniel V. Murphy、S. R. J. Brueck1983-09-01Optics Letters

Electromagnetic-structure-resonance enhancement of scattering from Si phonon modes is reported for a number of submicrometer structures. Enhancements of greater, similar100 over the Raman intensity from bulk Si are observed for ~0.1-microm-diameter Si spheres. An analytic calculation of the Raman intensity for this ge…

Silicon Nanostructures and PhotoluminescenceSpectroscopy Techniques in Biomedical and Chemical ResearchNear-Field Optical Microscopy

Effects of stress on the magnetization of steel

D.L. Atherton、David Jiles1983-09-01IEEE Transactions on Magnetics

The application of stress cycling to 1% manganese steel at low magnetic fields causes an irreversible shift in the magnetization towards the anhysteretic due to domain walls breaking away from their pinning sites under stress. The change in flux density ΔB caused by a single stress cycle of fixed amplitude\sigma_{\max…

Magnetic properties of thin filmsMicrostructure and Mechanical Properties of SteelsMagnetic Properties and Applications

Cell growth on liquid interfaces: Role of surface active compounds

Charles R. Keese、Ivar Giæver1983-09-01Proceedings of the National Academy of Sciences

Anchorage-dependent fibroblasts can be cultured by using as a substrate the protein layer that spontaneously forms at the liquid-liquid interface between fluorocarbon fluids and tissue culture medium. For this novel substrate to be effective in supporting confluent cell layers, the protein monolayer must support the s…

Polymer Surface Interaction Studies

High resolution electron microscope study of Sm(Co, Fe, Cu, Zr)<inf>7.5</inf>magnets

J. Fidler、P. Skalický、F. Rothwarf1983-09-01IEEE Transactions on Magnetics

High resolution electron microscopy of a set of Sm(Co.725Fe.20Cu.055Zr.02)7.5magnets has been used to characterize the structure and the size of the various micro-phases present. Our investigations of the samples, which were sintered at 1215°C, subsequently isothermally aged in steps of 50° at temperatures between 700…

Magnetic properties of thin filmsMagnetic and transport properties of perovskites and related materialsMagnetic Properties of Alloys

Elastic constants of the layered compounds Gas, GaSe, InSe, and their pressure dependence I. Experimental part

M. Gatulle、M. Fischer、A. Chévy1983-09-01physica status solidi (b)

Abstract The elastic constants of the lamellar compounds Gas, GaSe, InSe are measured on several samples using an ultrasonic method, and the results are compared with previous publications. The variations of C 33 , C 11 , and C 66 with an hydrostatic pressure are measured up to 3 kbars. In the range of pressure studie…

High-pressure geophysics and materialsCrystal Structures and PropertiesSolid-state spectroscopy and crystallography

Intramolecular excimer emission of poly(N-vinylcarbazole) and rac- and meso-2,4-di-N-carbazolylpentane. Model substances for its syndiotactic and isotactic dyads

Fritjof Evers、K. Kobs、R. Memming 等 4 位作者1983-09-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIntramolecular excimer emission of poly(N-vinylcarbazole) and rac- and meso-2,4-di-N-carbazolylpentane. Model substances for its syndiotactic and isotactic dyadsF. Evers, K. Kobs, R. Memming, and D. R. TerrellCite this: J. Am. Chem. Soc. 1983, 105, 19, 5988–5995Publication D…

Molecular Junctions and NanostructuresLuminescence and Fluorescent MaterialsAnalytical Chemistry and Sensors

Cation Selectivity in Sodium‐Calcium, Sodium‐Magnesium, and Calcium‐Magnesium Exchange on Wyoming Bentonite at 298 K

Garrison Sposito、Kenneth M. Holtzclaw、Claire Jouany 等 4 位作者1983-09-01Soil Science Society of America Journal

Abstract Exchange isotherms were prepared for Na + in Na + →Ca 2+ and Na + →Mg 2+ exchange reactions, and for Mg 2+ in Na + →Mg 2+ exchange reactions, at 298 K on Wyoming bentonite suspended in a 0.05 M perchlorate background. These isotherms were essentially congruent with the appropriate thermodynamic nonpreference…

Soil and Unsaturated FlowClay minerals and soil interactionsChemical Synthesis and Characterization

Statistical Theory of the Strength of Fiber Bundles

L.N. McCartney、Richard L. Smith1983-09-01Journal of Applied Mechanics

Following a review of statistical models of the failure of single fibers and bundles of these fibers, algebraic recurrence formulas are derived that generate expressions for the failure probabilities of bundles of classical fibers. One of these recurrence relations is suitable for the accurate numerical calculation of…

Computational Geometry and Mesh GenerationTextile materials and evaluations

Comparative study of the electrode reactions of 12-molybdosilicate and 12-molybdophosphate

Kei Unoura、Nobuyuki Tanaka1983-09-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComparative study of the electrode reactions of 12-molybdosilicate and 12-molybdophosphateKei Unoura and Nobuyuki TanakaCite this: Inorg. Chem. 1983, 22, 20, 2963–2964Publication Date (Print):September 1, 1983Publication History Published online1 May 2002Published inissue 1…

Polyoxometalates: Synthesis and ApplicationsChemical Synthesis and Characterization