Materials Literature
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We study the vibrational properties of pure type-II silicon clathrate $({\mathrm{Si}}_{136})$ using first-principles electronic structure methods. The results of our calculations are consistent with recent Raman experiments. We explore the effects of pressure on its open framework and determine the equation of state a…
The Escherichia coli 3-ketoacyl-ACP reductase gene (fabGEc) was cloned using a PCR technique to investigate the metabolic link between fatty acid metabolism and polyhydroxyalkanoate (PHA) production. Three plasmids respectively harboring fabGEc and the poly-3-hydroxyalkanoate synthesis genes phaCAc and phaC1Ps from Ae…
A sugar-binding polymer film capable of continuous sensingarises from the copolymerization of aniline and 3-aminophenylboronic acid. Its absorption spectrum between 500 and 800 nm undergoes large changes on addition of various saccharides at neutral pH, changes which are dependent on the saccharide concentration and a…
Photoinduced nonlinear optical phenomena in amorphous ${\mathrm{As}}_{2}{\mathrm{Te}}_{3}{\ensuremath{-}\mathrm{C}\mathrm{a}\mathrm{C}\mathrm{l}}_{2}{\ensuremath{-}\mathrm{P}\mathrm{b}\mathrm{C}\mathrm{l}}_{2}$ glasses have been studied using experimental and theoretical quantum chemical and molecular-dynamics methods…
Computer simulation studies on the miscibility behavior and single chain properties in binary polymer blends are reviewed. We consider blends of various architectures in order to identify important architectural parameters on a coarse grained level and study their qualitative consequences for the miscibility behavior.…
GroEL encapsulates non-native protein in a folding cage underneath GroES (cis-cavity). Here we report the maximum size of the non-native protein to stay and fold in the cis-cavity. Using total soluble proteins of Escherichia coli in denatured state as binding substrates and protease resistance as the measure of polype…
The dielectric behavior containing the film thickness dependent dielectric constant, capacitance–voltage (C–V) variation, and the electrical conduction behavior containing the film thickness dependent current density-electric field variation of rf sputter deposited (Ba,Sr)TiO3 (BST) thin films are analyzed based on a…
The role of hydrogen in enhancing the photoluminescence (PL) yield observed from Si nanocrystals embedded in SiO2 has been studied. SiO2 thermal oxides and bulk fused silica samples have been implanted with Si and subsequently annealed in various ambients including hydrogen or deuterium forming gases (Ar+4%H2 or Ar+4%…
We study smectic liquid crystals in random environments, e.g., aerogel. A low-temperature analysis reveals that even arbitrarily weak quenched disorder (i.e., arbitrarily low aerogel density) destroys translational (smectic) order, in agreement with recent experimental results. A harmonic approximation to the elastic…
Surface-enhanced Raman spectroscopic (SERS) experiments on thin films of free base phthalocyanine (H2Pc) with embedded silver clusters are reported. The thin films were produced by thermal evaporation of H2Pc together with different amounts of silver (8, 15 and 26 vol.%). From transmission electron microscopy it turne…
Adsorption of anhydrous hydrogen fluoride (AHF) on surfaces of (100) oriented single-crystalline silicon and the native oxide was investigated by in situ x-ray photoelectron spectroscopy (XPS) at room temperature. A significant component at 687.0 eV binding energy in the observed XPS spectra of the F 1s core level is…
A relation between nitrogen desorption/mercury intrusion porosimetry‐measured pore size and green density of a powder compact is examined with respect to data from the literature, as well as data from the current study on three ceramic oxides. In almost all cases, the relationship is well obeyed. Deviations from the r…
Several compositions in the (50 −x) PbO–xPbF2–50B2O3 (0 ≤ x ≤ 20) mol% vitreous system were systematically characterized at room temperature by infrared and Raman microscopic analysis. A general assignment of the vibrations observed for x = 0 mol% was proposed on the basis of borate units and correlations with other l…
Four copper-film-plated steel cords (abbreviated hereafter as copper-plated cord) with different thickness of copper film from 32 to 90 nm were prepared and their adhesion properties with rubber compound were investigated. Adhesion properties improved with the decrease in the thickness of the copper film. Unaged pull-…
Light scatter is one of the most basic of measurements made in flow cytometry. This unit presents a short commentary on what light scatter is and how it is measured. First, the author describes the basic principles of the scattering of light from small particles such as cells. This is followed by a discussion of metho…
Transmission electron microscopy (TEM) studies of the oxide film on the surface of a zirconium alloy have been performed and the crystallography of interfaces has been analysed. Regions of a peculiar microstructure consisting almost entirely of twins have been discovered in the zirconia film. The TEM results have been…
T his paper reports that the crossing-point temperature (CPT), where the heat conduction diminishes at the centre of a symmetrical exothermically reactive solid (or an assembly of packed solid particles), can be considerably different from the set oven temperature during a transient basket heating procedure for measur…
Two Inceptisols (Typic Placaquept and Typic Epiaquept) with placic horizons were selected from the subalpine forest soils in northern Taiwan to evaluate the characteristics and genesis of the placic horizons commonly found in these soils. The placic horizon in the Placaquept had sharp upper and diffuse lower boundarie…
Alloy thin films of hydrogenated silicon–oxygen–carbon (Si,C)Ox x<2, were deposited and analyzed in terms of changes in structure and bonding as a function of rapid thermal annealing between 600 and 1100 °C using a combination of Fourier transform infrared spectroscopy, Raman scattering and high-resolution transmissio…
We prove stability of the kink solution of the Cahn-Hilliard equation ∂tu = ∂( ∂u − u/2 + u3/2), x ∈ ℝ. The proof is based on an inductive renormalization group method, and we obtain detailed asymptotics of the solution as t → ∞. We prove stability of the kink solution of the Cahn-Hilliard equation ∂tu = ∂( ∂u − u/2 +…