Materials Literature
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This work reports the synthesis and electrical characterisation over a range of oxygen partial pressures (10–20–1 atm) of the A-site deficient perovskites Sr1–3x/2LaxTiO3–δ, with a view to establishing their potential as anode materials for solid oxide fuel cells. Single phase samples were observed for synthesis in ai…
Introduction polymeric catalysts photoresponsive polymers electrically conducting polymers and their applications as functional materials magnetic polymers oxygen-carrying and oxygen-permeating polymers polymeric inclusion complexes hydrophobic modification of poly(MA-CDA) to enhance biological activity a Novel biomat…
— The object of this study is to compare the results obtained with three standardized methods of determination of cationic exchange capacity (CEC) and exchangeable cations (Ca, Mg, K) in soils. The three methods are based on different exchange reagents: cobalt hexamine (Cohex) trichloride, barium chloride and am…
Spontaneous formation of two types of helical structure is observed in two smectic phases consisting of banana-shaped achiral molecules for the first time. Local optical resolution occurs to form spatially resolved helices of both handednesses.
Oxidation behavior of silicon-based ceramics such as SiC and Si3N4 at high temperatures is important for their practical applications to structural or electronic materials. In the present paper two kinds of oxidation (passive and active) and active-to-passive transition of silicon-based ceramics were discussed thermod…
This book describes the propagation of light in biaxial media, the properties of biaxial thin films, and applications such as birefringent filters for tuning the wavelength of dye lasers.A novel feature of the first part is the parallel treatment of Stokes, Jones, and Berreman matrix formalisms in a chapter-by-chapter…
To evaluate delayed fracture properties of martensitic bolt steels containing Cr, Mo, and V, the relationship between critical content for delayed fracture [Hc] and environmentally absorbed content [HE] in diffusible hydrogen have been investigated. The critical value [Hc] and the environmental value [HE] were determi…
Atomistic simulation techniques using potentials verified against the structure of ikaite, have been employed to study the molecular adsorption of water onto the stepped and planar calcite {104} surfaces as well as the {0001}, {100}, {101} and {110} surfaces. It was found that physisorption of water is energetically f…
Gold–cobalt oxide (Au–Co 3 O 4 ) composite films have been prepared by the sputter-deposition of gold onto a glass plate substrate followed by pyrolysis of spin-coated cobalt 2-ethylhexanoate. The films comprise small Au particles and Co 3 O 4 nanocrystals, and exhibit different and independent optical responses to CO…
A study of the effect of correlated ion motion on the electrical conductivity relaxation in single-crystalline yttria-stabilized zirconia is presented. Complex admittance in the radio frequency range show power-law dependencies in the real part of the conductivity at high frequencies of the form ${\mathrm{\ensuremath{…
▪ Abstract The inertia-dominated dynamics of a single gas or vapor bubble in an incompressible or nearly incompressible liquid has been the subject of intense investigation for many years. Studies prior to 1976 were thoroughly reviewed by Plesset & Prosperetti (1977) in Volume 9 of this series. Our review fills th…
. -- Dissipative particle dynamics (DPD) does not conserve energy and this precludes its use in the study of thermal processes in complex fluids. We present here a generalization of DPD that incorporates an internal energy and a temperature variable for each particle. The dissipation induced by the dissipative forces…
ZHONGMIN QIAN; ESTIMATES FOR WEIGHTED VOLUMES AND APPLICATIONS, The Quarterly Journal of Mathematics, Volume 48, Issue 2, 1 June 1997, Pages 235–242, https://do
FUNDAMENTALS OF DIELECTRIC MATERIALS 1. Theory of Dielectric Properties 2. Broadband Dielectric Measurement Techniques 3. Dielectric Properties of Amorphous Polymers 4. Dielectric Spectroscopy of Semicrystalline Polymers 5. Calculation of Dipole Moments and Correlation Parameters 6. Unbiased Modeling of Dielectric Dis…
We evaluate homology-derived 3D models of dihydrofolate reductase (DFR1), phosphotransferase enzyme IIA domain (PTE2A3), and mouse/human UBC9 protein (UBC9(24)) which were submitted to the second Meeting on the Critical Assessment of Techniques for Protein Structure Prediction (CASP). The DFR1 and PTE2A3 models, based…
Treatment of gibbsite {γ-Al(OH) 3 } with the lithium salts LiX {X = Cl, Br, NO 3 } in water leads to intercalation of both the cations and anions into the host structure to give [LiAl 2 (OH) 6 ]X·H 2 O {X = Cl, Br, NO 3 }. Thermogravimetric analysis indicates that these materials can be readily dehydrated to give high…
<p style="text-align:justify;"> The three scanning electron microscope diffraction based techniques of electron channelling patterns (ECPs), electron channelling constrast imaging (ECCI), and electron backscatter diffraction (EBSD) are reviewed. The dynamical diffraction theory is used to describe the physics of…
Abstract
The structures of the ferroelectric two-layer Aurivillius phases Bi 2 ANb 2 O 9 (A=Ba, Sr, Ca) have been refined using a combination of X-ray and neutron powder diffraction data. Bi 2 BaNb 2 O 9 is not significantly distorted from idealised symmetry and has been refined in tetragonal space group I4/mmm, a=3.9362(1) an…
The partial oxidation of methane to synthesis gas (syngas, CO + H2) was performed in a mixed-conducting perovskite dense membrane reactor at 850°C, in which oxygen was separated from air and simultaneously fed into the methane stream. Steady-state oxygen permeation rates for La1-xA′xFe0.8 Co0.2O3-δ perovskite membrane…