M. Antònia Molins、Pedro M. Nieto、Concha Sánchez 等 6 位作者1992-12-01The Journal of Organic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolution structure and conformational equilibria of a symmetrical calix[6]arene. Complete sequential and cyclostereospecific assignment of the low-temperature NMR spectra of a cycloasymmetric moleculeM. Antonia Molins, Pedro M. Nieto, Concha Sanchez, Pilar Prados, Javier De…
Supramolecular Chemistry and ComplexesMagnetism in coordination complexesLanthanide and Transition Metal Complexes
Fengbo Wu、Wen-Hsin Huang、Robert B. Sinclair 等 4 位作者1992-12-01Journal of Biological Chemistry
X-ray absorption spectroscopy is ideally suited for the investigation of the electronic structure and the local environment (approximately 5 A) of specific atoms in biomolecules. While the edge region provides information about the valence state of the absorbing atom, the chemical identity of neighboring atoms, and th…
DNA and Nucleic Acid ChemistryRNA and protein synthesis mechanismsEnzyme Structure and Function
Takashi Shimizu1992-12-01Catalysis Reviews
Research of perovskite oxide catalysts (AB03) with a rare-earth ion as an A-site and a transition metal ion as a B-site has been concentrated on the complete oxidation of hydrocarbons, particularly related to exhaust control, and revealed that they are potential catalysts for deep combustion of hydrocarbons (1). The c…
Catalytic Processes in Materials ScienceCatalysis and Oxidation ReactionsThermal and Kinetic Analysis
James B. Harsh、Samuel J. Traina、J. Boyle 等 4 位作者1992-12-01Clays and Clay Minerals
Abstract Noncrystalline aluminosilicates termed allophane and imogolite are common constituents of spodosols, soils derived from volcanic ash, and many inceptisols. The surface charge characteristics of their synthetic analogues may be used to better understand their ion retention properties. In this study, we determi…
Geophysical and Geoelectrical MethodsSoil and Unsaturated FlowClay minerals and soil interactions
Leno Mascia、M. Xanthos1992-12-01Advances in Polymer Technology
Abstract Polymer blends with enhanced properties and processability for specific applications are modified through the incorporation of a variety of additives. The performance of these additives is often difficult to predict from considerations of their known behavior in the separate blend constituents. This overview…
Polymer crystallization and propertiesFlame retardant materials and propertiesThermal and Kinetic Analysis
M. A. Ring、H. E. O’Neal1992-12-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanism of the thermally induced gas-phase decomposition of silane: a revisitationM. A. Ring and H. E. O'NealCite this: J. Phys. Chem. 1992, 96, 26, 10848–10855Publication Date (Print):December 1, 1992Publication History Published online1 May 2002Published inissue 1 Decemb…
Graphene research and applicationsSemiconductor materials and devicesMolecular Junctions and Nanostructures
Roberto De Philippis、Alba Ena、Monica Guastiini 等 5 位作者1992-12-01FEMS Microbiology Letters
Spirulina maxima and Rhodopseudomonas palustris, which are known to be capable of synthesizing poly-β-hydroxybutyrate (PHB), were grown under different conditions in order to investigate the metabolic significance of PHB synthesis in phototrophic microorganisms. The intracellular concentration of PHB in S. maxima, gro…
Enzyme Catalysis and Immobilizationbiodegradable polymer synthesis and propertiesAmino Acid Enzymes and Metabolism
Seiji Negoro、Shinji Kakudo、Itaru Urabe 等 4 位作者1992-12-01Journal of Bacteriology
Flavobacterium sp. strain KI725 harbors plasmid pOAD21, a derivative of nylon oligomer-degradative plasmid pOAD2, in which all of nylA (the gene for 6-aminohexanoate cyclic dimer hydrolase [EI]) was deleted but nylB (the gene for 6-aminohexanoate dimer hydrolase [EII]) was retained. KI725 showed no growth on unfractio…
Microbial bioremediation and biosurfactantsbiodegradable polymer synthesis and propertiesMicroplastics and Plastic Pollution
Junichi Nishino、Shigeo Ohshio、Kiichiro Kamata1992-12-01Journal of the American Ceramic Society
Aluminum‐doped zinc oxide films prepared using a normal‐pressure CVD (NP‐CVD) method were studied as a transparent electrode material. The films were prepared on fused quartz substrates at 500°C using bis(2,4‐pentanedionato)zinc and tris(2,4‐pentanedionato)aluminum as source material. The transparent films, ∼0.3 μm in…
ZnO doping and propertiesGas Sensing Nanomaterials and SensorsCopper-based nanomaterials and applications
Yuriko Aoki、Akira Imamura1992-12-01The Journal of Chemical Physics
An elongation method, which was already proposed to calculate efficiently the electronic states of aperiodic polymers, is developed to provide the local density of states. Elongation method is carried out by repeating the uniform localization of wave functions with inclusion of the interaction between the cluster and…
Synthesis and Properties of Aromatic CompoundsSupramolecular Self-Assembly in MaterialsQuasicrystal Structures and Properties
Alexander Pechenik、G. J. Piermarini、Stephen C. Danforth1992-12-01Journal of the American Ceramic Society
Compaction of ultrafine silicon nitride (Si 3 N 4 ) powder at high pressures and various temperatures followed by pressureless sintering was investigated. The powder, consisting of nearly spherical particles (16 nm in diameter) of amorphous stoichiometric Si 3 N 4 , was pressed in a diamond anvil cell under pressures…
Advanced ceramic materials synthesisDiamond and Carbon-based Materials ResearchAdvanced materials and composites
Yaacov Okon、Robin Itzigsohn1992-12-01FEMS Microbiology Letters
Azospirillum brasilense is a rhizosphere microorganism which has potential use for promoting plant growth in economically important crops. Its ability to survive the adverse conditions imposed by nutrient starvation and competition in the rhizosphere is of great importance. A. brasilense accumulates up to 70% of its c…
Enzyme Catalysis and Immobilizationbiodegradable polymer synthesis and propertiesMicroplastics and Plastic Pollution
Joo‐Won Lee、Deog‐Soo Park、Yoon‐Bo Shim 等 4 位作者1992-12-01Journal of The Electrochemical Society
Electrochemically prepared poly(1,8‐diaminonaphthalene) has been characterized in terms of its electrochemical, chemical, and electrical properties. The polymer is electroactive in aqueous solutions, has a reasonable conductivity of 2 to 3 S/cm in its doped form, and has free‐amine groups as examined by infrared spect…
Organic Electronics and PhotovoltaicsConducting polymers and applicationsElectrochemical Analysis and Applications
Katsuhiro Nomura、Shoichiro Ikeda、Kaname Ito 等 4 位作者1992-12-01Bulletin of the Chemical Society of Japan
Abstract The crystal structure, phase transition, electrical conduction behavior of various kinds of MIIZr4(PO4)6 (MIIZP) compounds (MII = Mg, Ca, Sr, Ba, Mn, Co, Ni, Zn, Cd, and Pb) have been investigated. The Mg, Co, Ni, and Zn compounds are of the β-Fe2(SO4)3-type structure and show an order-disorder transition bet…
Crystal Structures and PropertiesNuclear materials and radiation effectsChemical Synthesis and Characterization
C. S. Swamy、J. Christopher1992-12-01Catalysis Reviews
Mixed metal oxides crystalizing in a perovskite-related structure have long been of interest to solid state chemists and physicists because of their technologically important physical properties. The ready availability of a family of isomorphic solids with controllable physical properties makes these oxides suitable f…
Magnetic and transport properties of perovskites and related materialsCatalysis and Oxidation ReactionsElectronic and Structural Properties of Oxides
P. C. Joshi、S. B. Krupanidhi、Abhai Mansingh1992-12-01Journal of Applied Physics
Polycrystalline Bi4Ti3O12 thin films having perovskite structure were successfully produced on platinum coated silicon substrates by the sol-gel technique. Crack-free and crystalline films of 5000 Å thickness were fabricated by spinning and post-deposition rapid thermal annealing treatment at 500 °C for 20 s. The film…
Ferroelectric and Piezoelectric MaterialsAcoustic Wave Resonator TechnologiesMicrowave Dielectric Ceramics Synthesis
Z. H. Shi、L. A. Utracki1992-12-01Polymer Engineering and Science
Abstract In Part II of the work, the intermeshing twin‐screw extruder is briefly described and the theoretical procedures used to model its operation are summarized. Based on the microrheological considerations discussed in Part I, a predictive procedure of the morphology evolution during compounding of two immiscible…
Polymer crystallization and propertiesRheology and Fluid Dynamics StudiesPolymer Foaming and Composites
Shigenobu Hayashi、Takahiro Ueda、Kikuko Hayamizu 等 4 位作者1992-12-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNMR study of kaolinite. 1. Silicon-29, aluminum-27, and proton spectraShigenobu Hayashi, Takahiro Ueda, Kikuko Hayamizu, and Etsuo AkibaCite this: J. Phys. Chem. 1992, 96, 26, 10922–10928Publication Date (Print):December 1, 1992Publication History Published online1 May 2002P…
Glass properties and applicationsClay minerals and soil interactionsMineralogy and Gemology Studies
Gyu Shik Kim、Karl S. Hagen、Craig L. Hill1992-12-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, structure, spectroscopic properties, and hydrolytic chemistry of organophosphonoyl polyoxotungstates of formula [C6H5P(O)]2Xn+W11O39(8-n)- (Xn+ = P5+, Si4+)Gyu Shik Kim, Karl S. Hagen, and Craig L. HillCite this: Inorg. Chem. 1992, 31, 25, 5316–5324Publication Dat…
Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis
Carlos Vega、E.P.A. Paras、P. A. Monson1992-12-01The Journal of Chemical Physics
We consider the thermodynamic properties of the solid phase and solid–fluid phase equilibria of hard dumbbells. The focus of the present work is a more detailed study of the stability of the orientationally disordered (plastic crystal) solid phase relative to other solid phases and to the fluid. Our results indicate t…
Phase Equilibria and ThermodynamicsMaterial Dynamics and PropertiesTheoretical and Computational Physics