Paul A. Wright、Srinivasan Natarajan、John Meurig Thomas 等 4 位作者1992-09-01Chemistry of Materials
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMixed-metal amorphous and spinel phase oxidation catalysts: characterization by x-ray diffraction, x-ray absorption, electron microscopy, and catalytic studies of systems containing copper, cobalt, and manganesePaul A. Wright, Srinivasan Natarajan, John M. Thomas, and Pratib…
Catalytic Processes in Materials ScienceMesoporous Materials and CatalysisCatalysis and Oxidation Reactions
G. Bertotti、M. Pasquale1992-09-01IEEE Transactions on Magnetics
A loss model based on a dynamic generalization of the Preisach hysteresis model, in which the standard Preisach algorithm is coupled to an equation for the rate of change of the flux associated with each elementary Preisach loop, is presented. The model is able to predict loss features not explained by previous treatm…
Magnetic properties of thin filmsElectric Motor Design and AnalysisMagnetic Properties and Applications
Mengjiao Wang、Siegfried Wolff1992-09-01Rubber Chemistry and Technology
Abstract As shown in previous papers of this series, the main feature of silicas with regard to surface energy, which distinguishes them from carbon blacks, is a low dispersive component, γ s d , and a high specific component, γ s sp , of surface energy. The low γ s d , would result in a lack of interaction between fi…
Surface Modification and SuperhydrophobicityPolymer Nanocomposites and PropertiesAdsorption, diffusion, and thermodynamic properties of materials
Can Li、Qin Xin1992-09-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFT-IR spectroscopic investigation of methane adsorption on cerium oxideCan Li and Qin XinCite this: J. Phys. Chem. 1992, 96, 19, 7714–7718Publication Date (Print):September 1, 1992Publication History Published online1 May 2002Published inissue 1 September 1992https://pubs.ac…
Catalytic Processes in Materials Science
Robert J. P. Corriu、D. Leclercq、P. Lefèvre 等 5 位作者1992-09-01Chemistry of Materials
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation of monolithic binary oxide gels by a nonhydrolytic sol-gel processR. Corriu, D. Leclercq, P. Lefevre, P. H. Mutin, and A. ViouxCite this: Chem. Mater. 1992, 4, 5, 961–963Publication Date (Print):September 1, 1992Publication History Published online1 May 2002Publi…
Catalytic Processes in Materials ScienceMesoporous Materials and CatalysisCatalysis and Oxidation Reactions
D.M.K.P. Sirisena、Kathryn A. Brozek、P R MacLachlan 等 5 位作者1992-09-01Journal of Biological Chemistry
We have cloned a gene from a Salmonella typhimurium with the ability to complement the rfaC mutation (heptose-deficient lipopolysaccharide, sensitivity to rough-specific bacteriophages, and susceptibility to hydrophobic antibiotics). A 1018-base pair EcoRV-Tth111I fragment, subcloned into the pBluescriptKS+ vector to…
Bacterial Genetics and BiotechnologyEnzyme Structure and FunctionCancer Research and Treatments
S. A. Jabarin1992-09-01Polymer Engineering and Science
Abstract The fabrication of poly(ethylene terephthalate), PET, into fibers, films, and containers usually involves molecular orientation caused by molecular strain, which may lead to stress‐ or strain‐induced crystallization (SIC). The SIC of PET was studied by the methods of birefringence, density, thermal analysis,…
Advanced Sensor and Energy Harvesting MaterialsPolymer crystallization and propertiesbiodegradable polymer synthesis and properties
Louise Zylberberg、Jacky Bonaventure、L Cohen-Solal 等 5 位作者1992-09-01Journal of Cell Science
ABSTRACT The characterization of the fibrillar collagens and the cellular control of their spatial deposition were studied in fish scales using immunofluorescence, electron microscopy, electrophoretic and HPLC analyses, immunoprecipitation and hybridization with cDNA probes. This study was carried out on undisturbed a…
Silk-based biomaterials and applicationsMarine Biology and Environmental ChemistryCollagen: Extraction and Characterization
Stewart Sherrit、H. D. Wiederick、Bhaskar Mukherjee1992-09-01Ferroelectrics
We describe a new method for determining the real and imaginary parts of the material constants of piezoelectric resonators. Our method is applicable to any of the common resonator geometries, it is non-iterative and its accuracy is comparable to that of other methods which are currently in use.
Ferroelectric and Piezoelectric MaterialsAdvanced MEMS and NEMS TechnologiesAcoustic Wave Resonator Technologies
G.T. Burstein、S.P. Mattin1992-09-01Philosophical Magazine Letters
Current transients due to evolution of metastable corrosion pits on stainless steel in chloride solution are shown to be preceded by sharp current spikes. These current spikes are measured in the picoampere regime and represent microscopically violent nucleation events. Not all nucleation events survive to produce met…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsConcrete Corrosion and Durability
K. L. Ngai、Andreas Schönhals、E. Schlosser1992-09-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAn explanation of anomalous dielectric relaxation properties of polypropylene glycolK. L. Ngai, A. Schoenhals, and E. SchlosserCite this: Macromolecules 1992, 25, 19, 4915–4919Publication Date (Print):September 1, 1992Publication History Published online1 May 2002Published i…
High voltage insulation and dielectric phenomena
Toshiyuki Mori、Hiroshi Yamamura、Hidehiko Kobayashi 等 4 位作者1992-09-01Journal of the American Ceramic Society
Effects of the concentration of ZrOCl 2 , calcination temperature, heating rate, and the size of secondary particles after hydrolysis on the preparation of high‐purity ZrSiO 4 fine powders from ZrOCl 2 .8H 2 O (0.2 M to 1.7 M ) and equimolar colloidal SiO 2 using sol–gel processing have been studied. Mechanical proper…
Bone Tissue Engineering MaterialsAdvanced ceramic materials synthesisGlass properties and applications
Siba P. Ray1992-09-01Journal of the American Ceramic Society
Aluminum borate, 9Al 2 O 3 ·2B 2 O 3 or Al 18 B 4 O 33 , was synthesized by the reaction of stoichiometric amounts of α‐Al 2 O 3 and B 2 O 3 . The Al 18 B 4 O 33 material was formed into a dense ceramic by pressureless sintering with CaO, MgO, or CaAl 2 B 2 O 7 additives. The material was characterized by low bulk den…
Advanced ceramic materials synthesisMXene and MAX Phase MaterialsMicrowave Dielectric Ceramics Synthesis
Yutaka Ohya、Michael J. Hoffmann、Günter Petzow1992-09-01Journal of the American Ceramic Society
TiB 2 ‐particle reinforcement is one of the most successful methods for improving the fracture toughness of SiC ceramics. 1–3 Commercially available TiB 2 powders, however, have a large particle size and/or are highly reactive so that they are not favorable as a starting powder. In the present work, TiB 2 particles ar…
Advanced ceramic materials synthesisAluminum Alloys Composites PropertiesAdvanced materials and composites
Alan W. Weimer、William G. Moore、Raymond P. Roach 等 6 位作者1992-09-01Journal of the American Ceramic Society
Carbothermal reduction kinetics to synthesize boron carbide are studied under conditions of high carbon/boron oxide precursor heating rates (> 10 3 K/s) and intermediate temperatures (1803 K < T < 2123 K). For these conditions, fractional carbon conversion, X, can be described by a nucleation–growth rate expr…
Energetic Materials and CombustionBoron and Carbon Nanomaterials ResearchAdvanced materials and composites
Chang Su Ryu、G. Y. Oh、M. H. Lee1992-09-01Physical review. B, Condensed matter
We study the one-dimensional tight-binding model with site energies arranged in the Thue-Morse sequence. To show the characteristics of eigenstates, we study the trace map, wave functions, and the resistance, and perform a multifractal analysis on the wave functions. Half of all the eigenstates are represented by latt…
Theoretical and Computational PhysicsQuasicrystal Structures and PropertiesFractal and DNA sequence analysis
Takeshi Yamauchi、Soo Young Choi、Hirofumi Okada 等 7 位作者1992-09-01Journal of Biological Chemistry
Aspartate racemase from Streptococcus thermophilus contains no pyridoxal 5'-phosphate or other cofactors such as FAD, NAD+, and metal ions. It was affected by neither carbonyl reagents such as hydroxylamine nor sodium borohydride but was strongly inhibited by iodoacetamide and other thiol reagents. Aspartate, cysteate…
Enzyme Structure and FunctionAmino Acid Enzymes and MetabolismBiochemical and Molecular Research
Ljiljana Atanasoska、Katsuhiko Naoi、William H. Smyrl1992-09-01Chemistry of Materials
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTXPS studies on conducting polymers: polypyrrole films doped with perchlorate and polymeric anionsLjiljana Atanasoska, Katsuhiko Naoi, and William H. SmyrlCite this: Chem. Mater. 1992, 4, 5, 988–994Publication Date (Print):September 1, 1992Publication History Published online…
Conducting polymers and applicationsElectrochemical Analysis and ApplicationsAnalytical Chemistry and Sensors
Antônio Claret Soares Sabioni、Bernard Lesage、A.M. Huntz 等 5 位作者1992-09-01Philosophical magazine. A/Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties
Chromium self-diffusion coefficients in chromia (Cr2O3) single crystals were determined by both ion implantation and thick-film methods, using the 54Cr and 50Cr isotopes. The concentration profiles were established by secondary-ion mass spectrometry, and the diffusion coefficients were computed using a solution of Fic…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsNuclear materials and radiation effects
L. Li、C. D. Graham1992-09-01IEEE Transactions on Magnetics
The authors present a model for the development of crystallographic texture by hot deformation in NdFeB magnets produced by rapid solidification. Favourably oriented grains, with their c-axis parallel to the compression axis, grow by mass transport through a Nd-rich liquid grain boundary phase, forming large platelet…
Magnetic Properties and ApplicationsMagnetic Properties of AlloysSuperconducting Materials and Applications