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A Die Pressing Test for the Estimation of Agglomerate Strength

Jinhua Song、Julian Evans1994-03-01Journal of the American Ceramic Society

A die pressing test was developed for quick and inexpensive estimation of the agglomerate strength of ceramic powders. The critical nominal pressure ( p c ) at which contact areas between agglomerates start to increase rapidly was found from the relationship between change in sample height and applied pressure in unia…

Advanced ceramic materials synthesisGranular flow and fluidized bedsPowder Metallurgy Techniques and Materials

Hydrothermal Assembly of Novel Covalent, Extended Structures Based on [AsxSy]n- Building Blocks Derived from Condensation of AsS33-. Isolation of (Ph4P)2[InAs3S7] and (Me4N)2Rb[BiAs6S12]

J.‐H. CHOU、Mercouri G. Kanatzidis1994-03-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydrothermal Assembly of Novel Covalent, Extended Structures Based on [AsxSy]n- Building Blocks Derived from Condensation of AsS33-. Isolation of (Ph4P)2[InAs3S7] and (Me4N)2Rb[BiAs6S12]Jun-Hong Chou and Mercouri G. KanatzidisCite this: Inorg. Chem. 1994, 33, 6, 1001–1002Pub…

Quantum Dots Synthesis And PropertiesCrystal Structures and PropertiesPolyoxometalates: Synthesis and Applications

Molecular-dynamics simulations of stress relaxation in metals and polymers

Sławomir Błoński、Witold Brostow、Josef Kuba ́t1994-03-01Physical review. B, Condensed matter

Molecular-dynamics simulations of stress relaxation have been performed for models of metals and polymers. A method that employs coupling between the simulation cell and an applied stress as well as an external thermal bath has been used. Two-dimensional models of the materials are defined with interactions described…

High-pressure geophysics and materialsMaterial Dynamics and PropertiesTheoretical and Computational Physics

Molecular Ordering and Dynamics in the Columnar Mesophase of a New Dimeric Discotic Liquid Crystal As Studied by X-ray Diffraction and Deuterium NMR

S. Zamir、R. Poupko、Z. Luz 等 6 位作者1994-03-01Journal of the American Chemical Society

Author: Zamir, S. et al.; Genre: Journal Article; Issued: 1994; Title: MOLECULAR ORDERING AND DYNAMICS IN THE COLUMNAR MESOPHASE OF A NEW<br/> DIMERIC DISCOTIC LIQUID-CRYSTAL AS STUDIED BY X-RAY-DIFFRACTION AND<br/> DEUTERIUM NMR

Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsNonlinear Dynamics and Pattern Formation

CO Oxidation on Palladium. 2. A Combined Kinetic-Infrared Reflection Absorption Spectroscopic Study of Pd(111)

János Szanyi、W. Kevin Kuhn、D. Wayne Goodman1994-03-01The Journal of Physical Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCO Oxidation on Palladium. 2. A Combined Kinetic-Infrared Reflection Absorption Spectroscopic Study of Pd(111)Janos Szanyi, W. Kevin Kuhn, and D. Wayne GoodmanCite this: J. Phys. Chem. 1994, 98, 11, 2978–2981Publication Date (Print):March 1, 1994Publication History Published…

Catalytic Processes in Materials ScienceCatalysis and Oxidation ReactionsAdvanced Materials Characterization Techniques

Influence of Crosslinking on the Molecular Relaxation of an Amorphous Copolymer Near Its Glass-Transition Temperature

J. Glatz-Reichenbach、Louis J. Sorriero、John J. Fitzgerald1994-03-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfluence of Crosslinking on the Molecular Relaxation of an Amorphous Copolymer Near Its Glass-Transition TemperatureJoachim K. W. Glatz-Reichenbach, Louis Sorriero, and John J. FitzgeraldCite this: Macromolecules 1994, 27, 6, 1338–1343Publication Date (Print):March 1, 1994P…

Material Dynamics and PropertiesGlass properties and applicationsPhotochemistry and Electron Transfer Studies

Source of Catalysis in the Lactate Dehydrogenase System. Ground-State Interactions in the Enzyme.cntdot.Substrate Complex

Hua Deng、Jie Zheng、Anthony R. Clarke 等 6 位作者1994-03-01Biochemistry

The Raman spectra of both the NAD-pyruvate and the pyridine aldehyde adenine dinucleotide (PAAD)-pyruvate bound to pig heart, pig muscle, and Bacillus stearothermophilus lactate dehydrogenases were measured and are nearly the same, which is consistent with the conserved shell of residues surrounding the active-site ca…

Protein Structure and DynamicsEnzyme Structure and FunctionHemoglobin structure and function

Liquid Crystalline Elastomers—Characterization as Networks

Martin Brehmer、Rudolf Zentel1994-03-01Molecular crystals and liquid crystals science technology. Section A, Molecular crystals and liquid crystals/Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals

This paper summarises the properties of archiral and chiral liquid crystalline (LC) elastomers, the latter of which have found interest due to their piezoelectric properties. In addition the formation of new LC elastomers by a radical polymerization of acrylate groups covalently linked to LC polymers was investigated.…

Liquid Crystal Research AdvancementsPolymer Nanocomposites and PropertiesAdvanced Materials and Mechanics

Packing Characteristics of Crystalline Monolayers of Fatty Acid Salts, at the Air-Solution Interface, Studied by Grazing Incidence X-ray Diffraction

C. Boehm、F. Leveiller、Didier Jacquemain 等 8 位作者1994-03-01Langmuir

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPacking Characteristics of Crystalline Monolayers of Fatty Acid Salts, at the Air-Solution Interface, Studied by Grazing Incidence X-ray DiffractionC. Boehm, F. Leveiller, D. Jacquemain, H. Moehwald, K. Kjaer, J. Als-Nielsen, I. Weissbuch, and L. LeiserowitzCite this: Langmu…

Crystallization and Solubility Studies

Gas-Sensing Mechanism of Phthalocyanine Langmuir-Blodgett Films

Hongying Wang、J. B. Lando1994-03-01Langmuir

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGas-Sensing Mechanism of Phthalocyanine Langmuir-Blodgett FilmsHong-Ying Wang and Jerome B. LandoCite this: Langmuir 1994, 10, 3, 790–796Publication Date (Print):March 1, 1994Publication History Published online1 May 2002Published inissue 1 March 1994https://doi.org/10.1021/…

Porphyrin and Phthalocyanine ChemistrySphingolipid Metabolism and Signaling

Density functional theory predictions of polarizabilities and first- and second-order hyperpolarizabilities for molecular systems

Nobuyuki Matsuzawa、David A. Dixon1994-03-01The Journal of Physical Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDensity functional theory predictions of polarizabilities and first- and second-order hyperpolarizabilities for molecular systemsNobuyuki Matsuzawa and David A. DixonCite this: J. Phys. Chem. 1994, 98, 10, 2545–2554Publication Date (Print):March 1, 1994Publication History Pu…

Nonlinear Optical Materials ResearchSolid-state spectroscopy and crystallographyOrganic Chemistry Cycloaddition Reactions

Phosphate sorption by synthetic amorphous aluminium hydroxides: a 27 Al and 31 P solid‐state MAS NMR spectroscopy study

Richard Lookman、Piet J. Grobet、Roel Merckx 等 4 位作者1994-03-01European Journal of Soil Science

Summary The sorption of phosphate on amorphous aluminium hydroxides was investigated using 27 Al and 71 P solid‐state magic‐angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy, following the effect of different exposures to soluble phosphate. The spectra obtained were compared with the spectrum of amorpho…

Layered Double Hydroxides Synthesis and ApplicationsPhosphorus and nutrient managementChemical Synthesis and Characterization

4,5-Dihydroblumenol A, a New Nor-isoprenoid from Perrottetia multiflora

Antonio G. González、José A. Guillermo、Ángel G. Ravelo 等 5 位作者1994-03-01Journal of Natural Products

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT4,5-Dihydroblumenol A, a New Nor-isoprenoid from Perrottetia multifloraAntonio G. González, José A. Guillermo, Angel G. Ravelo, Ignacio A. Jimenez, and Mahabir P. GuptaCite this: J. Nat. Prod. 1994, 57, 3, 400–402Publication Date (Print):March 1, 1994Publication History Publ…

Phytochemistry and Bioactive Compounds

High nuclearity magnetic clusters: Magnetic properties of a nine cobalt cluster encapsulated in a polyoxometalate, [Co9(OH)3(H2O)6(HPO4)2(PW9O34)3]16⊕

José Ramón Galán‐Mascarós、Carlos J. Gómez‐García、J.J. Borrás-Almenar 等 4 位作者1994-03-01Advanced Materials

One goal in molecular magnetism is the synthesis of clusters containing large numbers of coupled spins. In the title heteropolyanion three reconstituted Keggin like fragments [PCo 3 W 9 O 40 ] are assembeled to increase the spin nuclearity. The Figure shows the idealizedstructure of the Co 9 cluster, illustrating the…

Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis

Degradation of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) by aerobic sewage sludge

Bernd Holger Briese、Dieter Jendrossek、H. G. Schlegel1994-03-01FEMS Microbiology Letters

The degradation of sheets of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (BIOPOL) by aerobic sewage sludge was analyzed. Degradation of the polymer was highly dependent on the pH of the culture medium and was maximal between pH 7 and pH 8.5. Below pH 6 and above pH 9 the degradation rate was very low. Agitation of th…

biodegradable polymer synthesis and propertiesMicroplastics and Plastic PollutionBiopolymer Synthesis and Applications

The compositional dependence of thermodynamic interactions in blends of model polyolefins

Ramanan Krishnamoorti、William W. Graessley、Nitash P. Balsara 等 4 位作者1994-03-01The Journal of Chemical Physics

We have investigated the thermodynamic interactions as functions of component volume fraction φ and temperature T in six binary polymer blend systems. The components in all cases were model polyolefins, made by saturating the double bonds of nearly monodisperse polydienes. Small-angle neutron scattering measurements f…

Phase Equilibria and ThermodynamicsMaterial Dynamics and PropertiesRheology and Fluid Dynamics Studies

Effect of the surroundings on atomic and molecular properties

David M. Bishop1994-03-01International Reviews in Physical Chemistry

This review is concerned with three types of physical phenomena which are affected by the environment of the species under study. They are the vibrational spectrum, nonlinear optical properties, and nuclear magnetic shielding of the molecule (or atom) of interest. The two types of environment discussed are liquid solv…

Advanced Chemical Physics StudiesNonlinear Optical Materials ResearchSpectroscopy and Quantum Chemical Studies

Influence of the Reduction/Evacuation Conditions on the Rate of Hydrogen Spillover on Rh/CeO2 Catalysts

S. Bernal、José J. Calvino、G.A. Cifredo 等 6 位作者1994-03-01Langmuir

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfluence of the Reduction/Evacuation Conditions on the Rate of Hydrogen Spillover on Rh/CeO2 CatalystsS. Bernal, J. J. Calvino, G. A. Cifredo, A. Laachir, V. Perrichon, and J. M. HerrmannCite this: Langmuir 1994, 10, 3, 717–722Publication Date (Print):March 1, 1994Publicati…

Catalytic Processes in Materials ScienceCatalysis and Hydrodesulfurization StudiesCatalysis and Oxidation Reactions

Isotropic Magnetic Exchange Interaction through Double .mu.-1,2,4-Triazolato-N1,N2 Bridges: X-ray Crystal Structure, Magnetic Properties, and EPR Study of Bis(.mu.-3-pyridin-2-yl-1,2,4-triazolato-N',N1,N2)(sulfato-O)aquacopper(II)diaquacopper(II) Trihydrate

Petie M. Slangen、Petra J. van Koningsbruggen、K. Goubitz 等 5 位作者1994-03-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIsotropic Magnetic Exchange Interaction through Double .mu.-1,2,4-Triazolato-N1,N2 Bridges: X-ray Crystal Structure, Magnetic Properties, and EPR Study of Bis(.mu.-3-pyridin-2-yl-1,2,4-triazolato-N',N1,N2)(sulfato-O)aquacopper(II)diaquacopper(II) TrihydratePetie M. Slangen,…

Metal complexes synthesis and propertiesMagnetism in coordination complexesLanthanide and Transition Metal Complexes

Near-Infrared Luminescence of Supramolecular Species Consisting of Osmium(II)- and/or Ruthenium(II)-Polypyridine Components

Alberto Juris、Vincenzo Balzani、Sebastiano Campagna 等 7 位作者1994-03-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNear-Infrared Luminescence of Supramolecular Species Consisting of Osmium(II)- and/or Ruthenium(II)-Polypyridine ComponentsAlberto Juris, Vincenzo Balzani, Sebastiano Campagna, Gianfranco Denti, Scolastica Serroni, Gabriela Frei, and Hans U. GuedelCite this: Inorg. Chem. 199…

Molecular Sensors and Ion DetectionSupramolecular Chemistry and ComplexesLuminescence and Fluorescent Materials