Materials Literature
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This chapter contains sections titled: Introduction Main Classes of Phosphorus-Based FRs Polyolefins Polycarbonate and its Blends Polyphenylene Ether Blends Polyesters and Polyamides Thermoplastic Elastomers (TPE) and Thermoplastic Polyurethanes (TPU) Epoxy Resins Unsaturated Polyesters PU Foams Textiles Conclusions a…
Computer-aided system of gas turbine engine calculation and analysis (ASTRA) developed at the Aircraft Engine Theory department of Samara State Aerospace University is described. Its functional capabilities and development of gas turbine engine simulators for various initial-stage design tasks are described.
We present a comprehensive error analysis of two prototypical atomistic-to-continuum coupling methods of blending type: the energy-based and the force-based quasicontinuum methods. Our results are valid in two and three dimensions, for finite range many-body interactions (e.g., EAM type), and in the presence of lattic…
A numerical study has been conducted for natural convection of air in a three dimensional inclined annulus enclosure. This study wills exam the effect of fibres filler in composite material of inclined enclosure on heat transfer. Two types of optimization will be performed in terms of effective thermal conductivity: m…
An improved methodology is reported for the synthesis of 2‐nitro‐7,8,17,18‐tetrabromo‐5,10,15,20‐tetraphenylporphyrin by the β‐mononitration of 2,3,12,13‐tetrabromo‐5,10,15,20‐tetraphenylporphyrin using 50% HNO3. The copper derivative of this compound showed the expected trend in redox potentials where the free‐base f…
Pineapple leaf fibres were modified with cationic modifier GX‐H23 and dodecyl dimethyl benzyl ammonium chloride (surfactant 1227) to change their surface electric properties. After modification, the pineapple leaf fibres were dyed separately with CI Reactive Red 15 under traditional and salt‐free dyeing conditions. Ba…
The reaction of NiCl2, K2C2O4·H2O and 2,2'-bipyridine (bpy) in water-ethanol solution at 281 K yields light-purple needles of the new pentahydrate of bis(2,2'-bipyridine)oxalatonickel(II), [Ni(C2O4)(C10H8N2)2]·5H2O or [Ni(ox)(bpy)2]·5H2O, while at room temperature, deep-pink prisms of the previously reported tetrahydr…
Magnetoresistive sensor can be widely used in modern transportation field, such as the vehicle positioning and navigation system, vehicle detection system, and intelligent transportation system. In order to improve the efficiency of magnetoresistive sensor, we synthesized La 0.8 Sr 0.2 MnO 3 polycrystalline bulks at d…
Complementary techniques including laser flash photolysis have been used to investigate the mechanism of decatungstate photocatalyzed oxygenation of methanol in acetonitrile. A particular attention has been directed to determine the most important chemical and photophysical kinetic parameters of this peculiar reaction…
A novel three-dimensional Zn(II) complex, poly[[(μ2-4,4'-bipyridine)(μ4-naphthalene-1,4-dicarboxylato)(μ2-naphthalene-1,4-dicarboxylato)dizinc(II)] dimethylformamide monosolvate monohydrate], {[Zn2(C12H6O4)2(C10H8N2)]·2C3H7NO·H2O)}n, has been prepared by the solvothermal assembly of Zn(NO3)·6H2O, naphthalene-1,4-dicar…
Phosphotungstic acid (H 3 PW 12 O 40, HPW) is used to modify the Pt nanospheres catalyst (denoted as HPW-Pt) on the polyamidoamine (PAMAM) substrate. We find that the Pt catalyst supported on PAMAM exhibits larger electrochemically active surface area (0.484 cm 2 ) compared to that of HPW-Pt/PAMAM composite catalyst (…
Experimental X-ray absorption spectra are extensively used to determine electronic structure of small molecules but remain difficult to exploit for proteins due to the large number of peaks within their spectra. For such complex systems, theoretical tools like quantum mechanics/molecular mechanics methodology can grea…
ABSTRACT In this work, polymerization of N‐isopropylacrylamide (NIPAM) in the presence of N,N,N′,N′‐tetramethylethylenediamine (TEMED) and sodium dodecyl sulfate (SDS) has been studied. The ability to control the characteristics of resulting particles was investigated via varying the concentrations of monomer, SDS, an…
In the last decade, various conductive networks for cooling heat generating bodies have been proposed, analyzed, and optimized. Nevertheless, many of these studies have not been based on an analytical or mathematical formulation of the effective parameters. In this trend, a new geometry is assumed and analyzed (by ana…
Abstract Carbon nanotubes (CNTs) were fabricated using low-pressure chemical vapor deposition and then embedded in epoxy polymer at several weight ratios, 0, 0.75, 1.5, and 3 wt%, for tensile testing and Young’s modulus determination using an Instron machine. The tensile strength and Young’s modulus of the epoxy resin…
This study deals with two biomedical subjects: corrosion rates of polyelectrolyte-coated magnesium (Mg) alloys, mainly used for biomedical purposes, and antibacterial properties of these alloys. Thin sheets of Mg alloys were coated with cationic polyelectrolyte chitosan (CHI) and anionic polyelectrolyte carboxymethyl…
The b-axis oriented orthorhombic YMnO3 (o-YMnO3) epitaxial films on a YAlO3 (010) substrate were fabricated with pulsed-laser deposition. The anisotropic orbital occupation and Jahn-Teller (JT) distortion of an o-YMnO3 film were investigated with polarization-dependent x-ray absorption spectra and configuration-intera…
Abstract The present paper deals with the reflection of waves incident at the surface of a transversely isotropic micropolar medium under the theory of thermoelasticity of GN types II and III. The wave equations are solved by imposing proper conditions on the components of displacement, stresses, and temperature distr…
Abstract Core–satellite nanostructures made of gold nanoparticles were fabricated on glass substrates by controlled immobilization of the nanoparticles and VUV irradiation. Coupled SPR absorption between core and satellite nanoparticles was observed, depending on the length of the dithiol linkers. These satellite nano…
Ionic liquids comprising cationic cobalt(III) complexes [Co(acacen)L2][Tf2N] (L = 3-butylpyridine (1), 1-butylimidazole (2); acacen = N,N′-bis(acetylacetone)ethylenediamine, Tf2N = bis(trifluoromethanesulfonyl)amide) were prepared. 1 is a liquid at room temperature and exhibits a glass transition at −12 °C, whereas 2…