N. S. Ramesh、Don H. Rasmussen、Gregory A. Campbell1994-11-01Polymer Engineering and Science
Abstract The existing models based on classical nucleation theory are not able to explain satisfactorily the nucleation phenomenon of microcellular foams in thermoplastics. Here, we extend the analysis of Kweeder (24), who developed a new model that considers the presence of microvoids, resulting from the thermal proc…
Polymer crystallization and propertiesRheology and Fluid Dynamics StudiesPolymer Foaming and Composites
J.‐P. Rivera1994-11-01Ferroelectrics
With a view to verifying the symmetry of the antiferromagnetic phase of LiCoPO4 crystals, quasi-static and dynamic magnetoelectric (ME) experiments have been undertaken by means of magnetic field induced polarization (MEH effect). After magnetoelectric annealing all nine components of the ME tensor have been tested at…
Physics of Superconductivity and MagnetismMultiferroics and related materialsAdvanced Condensed Matter Physics
Pierre Le Maguerès、L. Ouahab、Stéphane Golhen 等 8 位作者1994-11-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDiamagnetic and Paramagnetic Keggin Polyoxometalate Salts Containing 1-D and 3-D decamethylferrocenium Networks: Preparation, Crystal Structures and Magnetic Properties of [Fe(C5Me5)2]4(POM)(solv)n (POM = [SiMo12O40]4-, [SiW12O40]4-, [PMo12O40]4-, [HFeW12O40]4-; solv = H2O,…
Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis
E.F. Hairetdinov、Н. Ф. Уваров、Hitendra Kumar Patel 等 4 位作者1994-11-01Physical review. B, Condensed matter
ac and dc conductivities of fast-ion conducting x${\mathrm{Na}}_{2}$S+(1-x)${\mathrm{B}}_{2}$${\mathrm{S}}_{3}$ glasses in the composition range 0.001\ensuremath{\le}x\ensuremath{\le}0.1 were analyzed using the Almond-West formula \ensuremath{\sigma}(\ensuremath{\nu})=${\mathrm{\ensuremath{\sigma}}}_{\mathrm{dc}}$[1+(…
Advanced Battery Materials and TechnologiesGlass properties and applicationsMicrowave Dielectric Ceramics Synthesis
M. Kermarec、J.Y. Carriat、Paolo Burattin 等 5 位作者1994-11-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFTIR Identification of the Supported Phases Produced in the Preparation of Silica-Supported Nickel CatalystsM. Kermarec, J. Y. Carriat, P. Burattin, M. Che, and A. DecarreauCite this: J. Phys. Chem. 1994, 98, 46, 12008–12017Publication Date (Print):November 1, 1994Publicatio…
Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceMesoporous Materials and Catalysis
Vipin Kumar、John E. Weller1994-11-01Journal of Engineering for Industry
A process to produce a family of novel materials from polycarbonate, having a microcellular structure, is described. The process utilizes the high solubility of carbon dioxide in polycarbonate to nucleate a very large number of bubbles, on the order of 1 to 10 × 109 bubbles/cm3, at temperatures well below the glass tr…
Carbon dioxide utilization in catalysisPolymer Foaming and Composites
Isao Mochida、Seiki Kisamori、Motohiro Hironaka 等 6 位作者1994-11-01Energy & Fuels
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOxidation of NO into NO2 over Active Carbon FibersIsao Mochida, Seiki Kisamori, Motohiro Hironaka, Shizuo Kawano, Yuji Matsumura, and Masaaki YoshikawaCite this: Energy Fuels 1994, 8, 6, 1341–1344Publication Date (Print):November 1, 1994Publication History Published online1…
Catalytic Processes in Materials Science
Jens Hemmingsen、Kim M. Gernert、Jane S. Richardson 等 4 位作者1994-11-01Protein Science
The Tyr corner is a conformation in which a tyrosine (residue "Y") near the beginning or end of an antiparallel beta-strand makes an H bond from its side-chain OH group to the backbone NH and/or CO of residue Y - 3, Y - 4, or Y - 5 in the nearby connection. The most common "classic" case is a delta 4 Tyr corner (more…
Protein Structure and DynamicsGlycosylation and Glycoproteins ResearchEnzyme Structure and Function
Matthias Liebergesell、Kenji Sonomoto、Loutfy H. Madkour 等 5 位作者1994-11-01European Journal of Biochemistry
A recombinant strain of Escherichia coli, which overexpressed phaC and phaE from Chromatium vinosum, was used to isolate poly(3-hydroxyalkanoic acid) synthase. The isolation was performed by a two-step procedure including chromatography on DEAE-Sephacel and Procion Blue H-ERD. The poly(3-hydroxyalkanoic acid) synthase…
biodegradable polymer synthesis and propertiesMicrobial Metabolic Engineering and BioproductionEnzyme Structure and Function
Bengt Persson、J. Samuel Zigler、Hans Jörnvall1994-11-01European Journal of Biochemistry
The protein super‐family of medium‐chain alcohol dehydrogenases (and glutathione‐dependent formaldehyde dehydrogenase), polyol dehydrogenases, threonine dehydrogenase, archaeon glucose dehydrogenase, and eye lens reductase‐active ζ‐crystallins also includes Escherichia coli quinone oxidoreductase, Torpedo VAT‐1 protei…
Protein Structure and DynamicsAdvanced Glycation End Products researchEnzyme Structure and Function
M. W. Matsen、M. J. Schick1994-11-01Macromolecules
ABSTRACT: We study the microphases of linear multiblock copolymers formed from monodisperse A- and B-type blocks in the limit in which the number of blocks is large. We find the lamellar, gyroid, hexagonal, and cubic microphases to be stable. Monocontinuous catenoid-lamellar and bicontinuous double-diamond phases are…
Polymer crystallization and propertiesMaterial Dynamics and PropertiesBlock Copolymer Self-Assembly
Hirohito Ogasawara、A. Kotani、B. T. Thole1994-11-01Physical review. B, Condensed matter
X-ray-photoemission spectra of 4d(${\mathit{N}}_{4,5}$) core level in heavy rare-earth elements are studied theoretically with the consideration of the 4d-4f4f(${\mathit{N}}_{4,5\mathrm{\ensuremath{-}}}$${\mathit{N}}_{6,7}$${\mathit{N}}_{6,7}$) super-Coster-Kronig decay process in the excited states. It is shown that…
Rare-earth and actinide compoundsX-ray Spectroscopy and Fluorescence AnalysisElectron and X-Ray Spectroscopy Techniques
Judith A. Harrison、Donald W. Brenner1994-11-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSimulated Tribochemistry: An Atomic-Scale View of the Wear of DiamondJudith A. Harrison and Donald W. BrennerCite this: J. Am. Chem. Soc. 1994, 116, 23, 10399–10402Publication Date (Print):November 1, 1994Publication History Published online1 May 2002Published inissue 1 Nove…
Diamond and Carbon-based Materials ResearchForce Microscopy Techniques and ApplicationsLubricants and Their Additives
R. KNÜMANN、H. Bockhorn1994-11-01Combustion Science and Technology
Pyrolysis or combustion of plastics are of interest from different points of view: on the one hand polymers from which harmful substances may arise are involved in fires or are fed to incinerators; on the other hand plastic refuses are an alternative resource of energy or chemical raw materials. For designing recyclin…
Toxic Organic Pollutants ImpactThermal and Kinetic AnalysisPolymer Science and PVC
Frank Schatz、Michael Hirscher、Melanie Schnell 等 5 位作者1994-11-01Journal of Applied Physics
The influence of internal stress on the magnetic anisotropy and the magnetostriction was investigated in sputter-deposited amorphous (Tb0.27Dy0.73)0.42Fe0.58 films. Films with tensile stress show in-plane anisotropy and giant magnetostriction of λ∥=400×10−6 at 1 T measured in a field parallel to the film plane at room…
Magnetic properties of thin filmsMagnetic Properties and Applications
Debbie C. Crans、Mohammad Mahroof‐Tahir、Oren P. Anderson 等 4 位作者1994-11-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTX-ray Structure of (NH4)6(Gly-Gly)2V10O28.cntdot.4H2O: Model Studies for Polyoxometalate-Protein InteractionsDebbie C. Crans, Mohammad Mahroof-Tahir, Oren P. Anderson, and Mary M. MillerCite this: Inorg. Chem. 1994, 33, 24, 5586–5590Publication Date (Print):November 1, 1994P…
Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsNanocluster Synthesis and Applications
J.C. Vartuli、Charles T. Kresge、M. E. Leonowicz 等 7 位作者1994-11-01Chemistry of Materials
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of Mesoporous Materials: Liquid-Crystal Templating versus Intercalation of Layered SilicatesJ. C. Vartuli, C. T. Kresge, M. E. Leonowicz, A. S. Chu, S. B. McCullen, I. D. Johnson, and E. W. SheppardCite this: Chem. Mater. 1994, 6, 11, 2070–2077Publication Date (Pri…
Mesoporous Materials and CatalysisPolyoxometalates: Synthesis and ApplicationsSilicone and Siloxane Chemistry
Nina Lundholm、Jette Skov、Roger Pocklington 等 4 位作者1994-11-01Phycologia
No abstract available.
Diatoms and Algae Research
Graham J. C. Underwood1994-11-01Diatom Research
The species composition of epipelic algal assemblages on intertidal mudflats was investigated at three sites in the Severn estuary, England, between March 1990 and February 1991. Diatoms were the dominant algal group, comprising greater than 95% of living cells in 100 out of 106 lens tissue samples. Euglenoid algae we…
Marine and coastal ecosystemsMarine Biology and Ecology ResearchDiatoms and Algae Research
B. Groh、S. Dietrich1994-11-01Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
By using a density-functional theory we establish the existence of a ferroelectric nematic phase in fluids consisting of spherical particles which interact with Lennard-Jones and dipolar forces. Our detailed analysis of the thermodynamic limit shows that for a polarized dipolar fluid within a single domain the free en…
Liquid Crystal Research AdvancementsMaterial Dynamics and PropertiesCharacterization and Applications of Magnetic Nanoparticles