Materials Literature
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A stochastic model whose ergodic variant coincides with the Ising model has been considered. Constraints following from a microscopic conservation law are imposed on dynamics (lattice gas model). The master equation for the dynamic correlation function has been derived. It has been shown that the separation curve on t…
The Brockhouse project at the Canadian Light Source plans the construction of three beamlines, two wiggler beamlines, and one undulator beamline, that will be dedicated to x-ray diffraction and scattering. In this work, we will describe the undulator beamline main components and performance parameters, obtained from r…
Reactions of s - trans -nitrosulfodienes of the 2-benzylidene-3-methyl-4-nitro-3-thiolene-1,1-dioxide series with aroylhydrazines occur as nucleophilic 1,4-addition to give the aza-Michael adducts. Activity of the studied substrates depends on the nature of the substituents in the benzene ring of benzylidene fragment.…
An electrode system for inducing a high density pulsed electric current (PEC) into the material for residual stresses (RS) relaxation has been proposed. A new non-destructive technology for determination of RS using electron speckle interferometry in combination with a local PEC treatment has been developed. Applicati…
It is found for hydrated solid solutions of Ba2−0.5x In2O5−x F x · nH2O, Ba2In2O5−0.5y F y · nH2O (0 ≤ x ≤ 0.30; 0 ≤ y ≤ 0.24) that increasing the concentration of fluorine lowers the degree of hydration. The composition of proton-containing groups and the places of their localization in the structure of hydrated oxyf…
PFA fluoropolymer lined technology revolutionized ball valve development and design decades ago and continues to be pivotal for many products and valve solutions in diverse industries and applications, such as chemical process, semiconductor/LCD manufacturing processes, pharmaceutical and others. Because of the extrem…
We comparatively investigated the crystal and the optical properties of nonpolar (10-10) ZnO films grown on m-plane sapphire substrates by using atomic layer deposition (ALD) and radio frequency (RF) magnetron sputtering. From high-resolution X-ray ω /2 θ scans, the (100) peak of the ALD-grown ZnO film was clearly dev…
A dinuclear copper(II) phthalocyanine complex with 12 2,6-dimethylphenoxyl groups at the peripheral positions of the [ CuPc ]2 framework, where [ CuPc ] units are linked by a common annulated benzene ring to give the planar dinuclear structure, was prepared and characterized. The introduced bulky 2,6-dimethylphenoxyl…
The use of a small number of surface electromyography (EMG) channels on the transradial amputee in a myoelectric controller is a big challenge. This paper proposes a pattern recognition system using an extreme learning machine (ELM) optimized by particle swarm optimization (PSO). PSO is mutated by wavelet function to…
This paper describes the performance of a wideband HVDC reference divider. The divider concept is a shielded modular divider and it is intended for traceable calibration of HVDC measuring systems up to 1000 kV in customers' laboratories. The first priority in the design was the accuracy of HVDC measurements. In additi…
Inspired from butterfly wings that feature brilliant structural color and unique dewetting properties, micro-nanostructured graphene surfaces with superhydrophobicity and iridescence are fabricated on page 4595 by Y.-L. Zhang, H.-B. Sun, and co-workers using a two-beam laser interference treatment of graphene oxide fi…
Temperature dependent positron annihilation lifetime spectroscopy (PALS) measurements in the range of 50–300 K are carried out to study positronium formation in 40 KeV B+-ion implanted polymethylmethacrylate (B:PMMA) with two ion doses of 3.13 × 1015 and 3.75 × 1016 ions/cm2. The investigated samples show the various…
The present study report two types of ultra-thin shellac fibers that were fabricated using a traditional single fluid electrospinning and a modified coaxial electrospinning. Ethanol was exploited as the solvent of shellac and also a sheath fluid of the coaxial process. A camera was used to observe the electrospinning…
As an alternative of parabolic reflectors, microstrip reflectarrays inherit their many merits as well as those of conventional antenna arrays. This work is focused on solving two problems of terahertz reflectarrays, i.e., narrow operating bandwidth and beam-scanning ability. Two reflectarrays are demonstrated based on…
The green alga Dunaliella salina is a common inhabitant of crystallizers in solar saltworks. Although its presence has been associated with low salt quality, little is known about the mechanism through which Dunaliella causes such effect. It has been suggested that the release of organic matter from healthy D. salina…
Applying 6- O -monotosyl derivative of β-cyclodextrin and hexane-1,6-diamine monomeric and dimeric (bridging) amphiphilic compounds were obtained, and the opportunity was demonstrated of the preparation on their basis of inclusion compounds at the interaction with 2-(4-isobutylphenyl)propionic acid (Ibuprofen).
Conditions for fabricating (Ba 0.5 Sr 0.5 )Nb 2 O 6 ceramics are optimized. It is shown that materials synthesized at T = 1250°C and sintered at T = 1375–21400°C exhibit the best ceramic characteristics. The (Ba 0.5 Sr 0.5 )Nb 2 O 6 solid solution is found to be a ferroelectric with a diffuse phase transition. The pos…
This paper gives an introduction to the synthetic methods of gold nanoparticles, such as reduction method, template method and seed growth method. The reduction technique includes green reduction, template reduction and organic small molecules method. In addition, the applications of gold nanoparticles in nanoprobes,…
A series of surfactant-modified CuCoMn-based catalysts were prepared for higher alcohol synthesis from biomass-based syngas. Three typical surfactants, cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS) and pluronic P123 triblock copolymer (EO20PO70EO20), were employed. Compared to surfactant-free CuC…
R Prakash Kolli, Frederick Meisenkothen; A Focused Ion Beam Specimen Preparation Method to Minimize Gallium Ion Concentration in Copper Atom-Probe Tomograp