Materials Literature
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The BaF 2 -BiF 3 system was studied by the method of coprecipitation from aqueous solutions. The region of precipitation of single-phase nonoxygen powders was revealed (the atomic fraction of Bi in the initial solution was 0.35–0.43). The composition of the cubic fluorite-type phase is BaBiF 5 according to an energy-d…
The effect of the CrRu–SiOx underlayer with different doping concentrations and the thickness of the CrRu underlayer on the microstructure and magnetic properties of FePt–C films were investigated. FePt films exhibited L10 (001) texture at various SiOx doping concentrations. The coercivities were as large as 28 kOe an…
A high-quality a-plane GaN layer with a pit-free, mirror-like surface was grown on a hemispherical patterned r-plane sapphire substrate (PSS) by metal–organic chemical vapor deposition. The use of the r-plane PSS reduced the density of defects such as basal plane staking faults and threading dislocations of the a-plan…
PURPOSE: The present study was initiated to study the autophagic and apoptotic response to sonodynamic therapy (SDT) in murine leukemia L1210 cells in vitro. METHODS: L1210 cells were examined after 6 hours of incubation following SDT induction with ultrasound at a frequency of 1.1 MHz and an intensity of 3 W/cm(2) in…
A synthetic route for alumina based dielectric layer for AlGaN/GaN metal–oxide–semiconductor high-electron-mobility transistors (MOS-HEMT) has been developed. The approach is based on oxidative annealing of thin Al layer deposited prior to Schottky gate metallization. The MOS-HEMT exhibits good pinch off features with…
Lower hybrid wave (LHW)-plasma coupling and lower hybrid current drive (LHCD) experiments in divertor, including single-null and double-null, and limiter configurations were conducted systematically in EAST. A maximum power for launched LHW is 1.4 MW and the plasma current with LHCD is about 1 MA. It is indicated that…
The solubilities of (sodium and copper(II)) sulfate + ethanol + water mixtures have been determined at (278.15, 288.15, and 298.15) K and for the potassium sulfate + ethanol + water system at the same temperatures and also at (308.15 and 318.15) K. The equilibrium composition for different points has been calculated b…
A sufficiently strong Coulomb interaction may open an excitonic fermion gap and thus drive a semi-metal-insulator transition in graphene. In this paper, we study the Eliashberg theory of excitonic transition by coupling the fermion gap equation self-consistently to the equation of the vacuum polarization function. Inc…
A modified polysaccharide that, in each deacetylated unit, carries a functional secondary amino group and a quaternized amino group that provides a positive charge and solubility to the polymer throughout the pH range is prepared by the alkylation of primary amino groups of chitosan with glycidyltrimethylammonium chlo…
Alkoxylation of 3,6-di- tert -butyl-1,2-benzoquinone with a number of diols, including propane-1,3-diol, butane-1,4-diol, di-, and triethylene glycols, and cyclohexane-1,4-diyldimethanol, was studied. Nine new 4-alkoxy-3,6-di- tert -butyl-1,2-benzoquinones were synthesized, four of which were bis-1,2-benzoquinones wit…
Pentachlorophenol (PCP) removal by Pleurotus pulmonarius grown in submerged cultures in the presence and absence of laccase inducers was studied in this work. When PCP was added to a final concentration of 25 mg·L-1 in submerged cultures actively producing laccase, 70% of the PCP was removed after 96 h. The removal of…
The dynamical behavior of a magnetic nanoparticle contaminated by pointlike impurities is studied by using a spin dynamics numerical simulation. It was observed that the impurities can behave both as pinning (attractive) and as scattering (repulsive) sites. A Gaussian profile was observed for the interaction potential…
The fundamental properties of the AlN and GaN compounds with a wurtzite structure under external hydrostatic pressure, uniaxial mechanical stress σ⊥ along the hexagonal axis, and biaxial mechanical stress σ⊥ in the basal plane of the unit cell have been considered in terms of first-principles calculations in the frame…
Finite-element method is applied to calculate the stable stator three-dimensional (3D) temperature field of a hydro-generator SF125-96/15600. First, 3D controlling equation of heat conduction and its equivalent functional equation are presented. Secondly, all the parameters for simulation such as heat conductivity coe…
In this study, L11 CoPt (111) films were deposited on glass substrates at 300 °C with observed superlattice (111) and (333) peaks and easy axis distribution of 2°. The magnetic anisotropy constant was in the order of 107 erg/cm3. The effect of CoPt layer thickness on domain structure and magnetic properties was invest…
Styrene butadiene rubber (SBR) modified asphalt emulsions were prepared by means of SBR latex adding to aqueous solution, and it is an energy-saving, ecologically safe material because it does not need any heating processes creating gas emission and fire hazard during its use. The objective of this work was to analyze…
A major deficiency in piezoelectric actuator performance is caused by hysteresis and creep effects. Switched capacitor charge pump control was previously proved to be an effective way to reduce hysteresis. In this work, creep character of a piezoelectric stack under charge pump control is investigated and modeled. Exp…
We review a free parameter in the design of Fresnel-zone-plate antennas. Historically, zone-plate antennas have been designed with a specific choice for this parameter. Two methods of interpreting the parameter have been identified, either in terms of a reference radius or, equivalently, a reference phase. For simplic…
Calcium propionate (CP) is shown to be useful for simultaneous SO 2 /NO reduction in coal-fired power plants and its thermal decomposition characteristics are measured by thermogravimetric analysis in a feasibility study into more complete reduction of these hazardous gases. Calcium carbonate (CC), which has been used…
The theory of control of nonaxisymmetric perturbations is dominated by the wide sensitivity range of a tokamak plasma to externally produced magnetic perturbations. External perturbations are characterized by their normal magnetic field on the unperturbed plasma surface. The first spatial distribution of on the unpert…