A. W. Cordes、C.D. Bryan、W. M. Davis 等 9 位作者1993-08-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPrototypal 1,2,3,5-dithia- and -diselenadiazolyl [HCN2E2].bul. (E = sulfur, selenium): molecular and electronic structures of the radicals and their dimers, by theory and experimentA. W. Cordes, C. D. Bryan, W. M. Davis, R. H. de Laat, S. H. Glarum, J. D. Goddard, R. C. Hadd…
Perovskite Materials and ApplicationsOrganic and Molecular Conductors ResearchN-Heterocyclic Carbenes in Organic and Inorganic Chemistry
Hiroaki Imai、Kazuo Arai、Junichi Isoya 等 6 位作者1993-08-01Physical review. B, Condensed matter
Generation of typical paramagnetic centers by \ensuremath{\gamma} irradiation was studied for various kinds of synthetic silica glasses. Growth behavior of E' centers and nonbridging oxygen hole centers (NBOHC's) with \ensuremath{\gamma}-ray dose depends on contained preexisting point defects. By irradiation at room t…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsPhotonic Crystals and Applications
Bradford B. Wayland、Alan E. Sherry、Andrew G. Bunn1993-08-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEPR studies of 1:1 complexes of rhodium(II) and cobalt(II) porphyrins with .sigma. donor and .pi. acceptor ligands: origins of rhodium(II) metalloradical reactivityBradford B. Wayland, Alan E. Sherry, and Andrew G. BunnCite this: J. Am. Chem. Soc. 1993, 115, 17, 7675–7684Pub…
Porphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation MechanismsCO2 Reduction Techniques and Catalysts
Robert P. Bourman1993-08-01Australian Journal of Earth Sciences
There are perennial problems in the investigation of laterite. (i) The development of an acceptable terminology to describe the forms and processes associated with laterite genesis. Some workers consider that the use of the term laterite should be discontinued, because of its genetic connotations and the uncritical ap…
Geological and Geochemical AnalysisClay minerals and soil interactionsGeochemistry and Geologic Mapping
Soo W. Lee、Stephen M. Hsu、Mengyuan Shen1993-08-01Journal of the American Ceramic Society
The wear characteristics of an yttria‐stabilized zirconia (Y‐TZP) are represented by a set of three‐dimensional wear maps under dry and lubricated conditions. Water, paraffin oil, and a formulated oil were used as lubricants. Different wear regions were identified as function of load, speed, and lubricants environment…
Advanced ceramic materials synthesisAdvanced materials and compositesTribology and Wear Analysis
Sara A. Majetich、A. C. Carter1993-08-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface effects on the optical properties of cadmium selenide quantum dotsS. A. Majetich and A. C. CarterCite this: J. Phys. Chem. 1993, 97, 34, 8727–8731Publication Date (Print):August 1, 1993Publication History Published online1 May 2002Published inissue 1 August 1993https…
Semiconductor Quantum Structures and DevicesQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films
S. C. Dexter1993-08-01Biofouling
A primary bacterial film on a metal surface immersed in natural waters can create electrochemical conditions at the base of the film that are radically different from those in the bulk water. The concentrations of dissolved oxygen and other chemical species; as well as pH at the metal surface are usually affected. The…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsMarine Biology and Environmental Chemistry
Masahiko Kojima、Hisao Kato、Mitsuru Gatto1993-08-01Philosophical Magazine B
The electrical and optical properties of tin oxide (SnO2) thin films heavily doped with antimony (Sb) have been investigated. The films were prepared by spray pyrolysis at a temperature of 500°C. An undoped SnO2 film is transparent and its resistivity is 4 × 10−3 Ω cm. With increase in antimony content the resistivity…
ZnO doping and propertiesGas Sensing Nanomaterials and SensorsTransition Metal Oxide Nanomaterials
Andrzej Katrusiak1993-08-01Physical review. B, Condensed matter
Geometric restraints resulting from differences in the electronic structure of the oxygen atoms involved in the -OH...O= hydrogen bonds are analyzed in terms of their consistency with the symmetry requirements in ferroelectric crystals. The interdependence between these restraints and the symmetry combines the effect…
Nonlinear Optical Materials ResearchAcoustic Wave Resonator TechnologiesSolid-state spectroscopy and crystallography
Mark D. Gehlsen、Frank S. Bates1993-08-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHeterogeneous catalytic hydrogenation of polystyrene: thermodynamics of poly(vinylcyclohexane)-containing diblock copolymersMark D. Gehlsen and Frank S. BatesCite this: Macromolecules 1993, 26, 16, 4122–4127Publication Date (Print):August 1, 1993Publication History Published…
Theoretical and Computational PhysicsBlock Copolymer Self-AssemblyAdvanced Thermodynamics and Statistical Mechanics
Elhem Ghorbel、D. Valentin1993-08-01Polymer Composites
Abstract The effect of aging by immersion in water at 60°C on polyester and vinylester resins, unreinforced and reinforced with glass fibers, was investigated. Changes in weight, glass transition temperature, secondary relaxations, and storage modulus, as well as loss modulus were measured, and the environmental effec…
Mechanical Behavior of CompositesNatural Fiber Reinforced CompositesTextile materials and evaluations
Bipan Bansal、H. Mu ̈ller-Steinhagen1993-08-01ASME Journal of Heat and Mass Transfer
Crystallization fouling of calcium sulfate was investigated in a plate and frame heat exchanger. The effects of flow velocity, wall temperature, and CaSO4, concentration on the fouling rates have been investigated and the distribution of scale along the heat transfer surface has been observed. The measured fouling cur…
Calcium Carbonate Crystallization and InhibitionFreezing and Crystallization Processes
Wolfgang Windl、P. Pavone、K. Karch 等 7 位作者1993-08-01Physical review. B, Condensed matter
The second-order Raman spectra of diamond and silicon have been calculated using ab initio phonons and phenomenological polarizability coefficients. The sharp peak in the spectrum of diamond near the two-phonon cutoff is explained by a maximum in the vibrational density of states; this maximum originates from the uppe…
High-pressure geophysics and materialsDiamond and Carbon-based Materials ResearchElectronic and Structural Properties of Oxides
Chingyi Chang、Robert L. Powell1993-08-01Journal of Fluid Mechanics
Stokesian dynamics is used to simulate the dynamics of a monolayer of a suspension of bimodally distributed spherical particles subjected to simple shearing flow. Hydrodynamic forces only are considered. Many-body far-field effects are calculated using the inverse of the grand mobility matrix. Near-field effects are c…
Material Dynamics and PropertiesMicrofluidic and Bio-sensing TechnologiesElectrostatics and Colloid Interactions
Tore Hulgaard、Kim Dam‐Johansen1993-08-01AIChE Journal
Abstract N 2 O decomposition and formation during the oxidation of NH 3 and HCN were studied in a quartz flow reactor in the presence of CO, NO and other gases. The emphasis is on the influence of CO and NO. In addition, the homogeneous nitrogen chemistry of fluidized bed combustion and the selective noncatalytic redu…
Atmospheric chemistry and aerosolsAdvanced Combustion Engine TechnologiesCatalytic Processes in Materials Science
Xi Chu、Won‐il Chung、L.D. Schmidt1993-08-01Journal of the American Ceramic Society
We studied the sintering process of sol‐gel‐prepared monodisperse submicrometer CeO 2 spheres by examining the microstructural changes of single spherical particles after successive heat treatment in oxygen up to 850°C using transmission electron microscopy. Steps of organic phase removal, CeO 2 crystallization, grain…
Catalytic Processes in Materials ScienceCatalysis and Oxidation ReactionsPickering emulsions and particle stabilization
M. Evain、Philippe Deniard、A. Jouanneaux 等 4 位作者1993-08-01Journal of Applied Crystallography
The INEL diffractometer, equipped with a CPS120 curved detector and set up in a Debye-Scherrer geometry, is a unique tool for carrying out powder diffraction studies on air-sensitive and/or small-volume samples. Although it has routinely been used in powder diffractometry because of its minute acquisition times, its a…
Chemical Synthesis and CharacterizationX-ray Diffraction in CrystallographyCrystallography and Radiation Phenomena
Tillman U. Gerngross、P. Reilly、J. Stubbe 等 5 位作者1993-08-01Journal of Bacteriology
Antibodies raised against the Alcaligenes eutrophus poly-beta-hydroxybutyrate (PHB) synthase polypeptide were used for immunocytochemical localization of the synthase enzyme in whole cells and purified PHB granules. The data presented demonstrate for the first time that the synthase enzyme is located on the surface of…
biodegradable polymer synthesis and propertiesPolyamine Metabolism and Applications
Françoise M. Winnik、M. Francesca Ottaviani、Stefan H. Bossmann 等 6 位作者1993-08-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCononsolvency of poly(N-isopropylacrylamide): a look at spin-labeled polymers in mixtures of water and tetrahydrofuranFrancoise M. Winnik, M. Francesca Ottaviani, Stefan H. Bossmann, Wenseng Pan, Miguel Garcia-Garibay, and Nicholas J. TurroCite this: Macromolecules 1993, 26,…
Magnetism in coordination complexesElectron Spin Resonance Studies
Akbar A. Merchant、Mark A. Petrich1993-08-01AIChE Journal
Abstract The primary objective of this work was to demonstrate the conversion of scrap tires to activated carbon. We have been successful in this endeavor, producing carbons with surface areas greater than 500 m 2 /g and significant micropore volumes. Tire shreddings were pyrolyzed in batch reactors, and the pyrolysis…
Supercapacitor Materials and FabricationPolymer crystallization and propertiesFiber-reinforced polymer composites