Materials Literature
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In order to improve the corrosion resistance of the TiB2/Fe composite coatings, high carbon ferrochromium powder was added to the precursor powders. This study evaluates the effect of high carbon ferrochrome added to the composite coating processed by shielded metal arc welding process. The phase composition and micro…
The authors give a survey of their work on photochemical processes at silver nanoparticles carried out in Berlin in the past decade. Using well established procedures for the preparation of silver nanoparticles (Ag NPs) supported on ultrathin alumina layers on NiAl single crystals,they have investigated the photoreact…
In this study, we investigated the effects of hydrolyzed and non-hydrolyzed collagen and two-dimensional and three-dimensional collagen matrices on cell survival, attachment and neurite outgrowth of primary cultured nerve cells using 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) colorimetric assay…
The use of conventional food packaging materials is usually effective in terms of barrier. On the other hand, their nonâ€biodegradability creates serious environmental problems, motivating researches on edible biopolymer films and coatings to at least partially replace synthetic polymers as food packaging materials.…
Consistency (slump test), air content, water absorption after 28 days, 28-day compressive and flexural strength, load-deflection relation were tested. 100 mm and 150 mm cube specimens were used to test water absorption and compressive strength, respectively.The behaviour of each concrete at bending was investigated us…
The studies of the bipolar resistive switching effect in thin film heterojunctions (YBa2Cu3O7-δ /Ag) and (Nd 2-x Ce x CuO4-y /Ag) have exhibited the role of oxygen as a doping element in hole- and electron-doped HTSC compounds.
A wide variety of cyclic molecular architectures are built of modular subunits and can be formed combinatorially. The mathematics for enumeration of such objects is well-developed yet lacks key features of importance in chemistry, such as specifying (i) the structures of individual members among a set of isomers, (ii)…
A theory is presented for exciton formation in a graphene sheet using the center-of-mass approximation. The energy levels and wavefunctions of exciton are calculated analytically which show that the exciton can form if the band gap of graphene is not zero. We show that the energy gap of graphene plays the role of the…
The aim of this study was to develop a new extended release capsules of indomethacin. The formulation has been prepared to enhance its dissolution which could provide better oral absorption of indomethacin (IND). Therefore, the effects of the component nature, their proportion in the release rate and the dissolution m…
Time-resolved luminescence measurements of luminescent lanthanide complexes have advantages in biological assays and high-throughput screening, owing to their high sensitivity. In spite of the recent advances in their energy-transfer mechanism and molecular-orbital-based computational molecular design, it is still dif…
The mechanisms of activation of CH4 catalyzed by (1/3)Hf(2+) and oxidation of CO by N2O catalyzed by (1/3)HfO(2+) or (2/4)TaO(2+) have been investigated using the B3LYP level of theory. For the activation of methane, the TSR (two-state reactivity) mechanism has been certified through the spin-orbit coupling (SOC) calc…
Electrolytic chromium-coated steel (ECCS) plates are surface protected by a semi-crystalline polyethylene terephthalate (PET) polymer coating that provides mechanical and corrosion resistance properties. At the interface level, the steel is protected by a nanometric electrolytic chromium-based coating that chemically…
Abstract Iodotrimethylplatinum(IV) forms the complexes [PtMe3L2I] [L = 4‐dimethylaminopyridine (4‐DMAP), 3‐bromopyridine (3‐BrPy), and 4‐cyanopyridine (4‐CNPy)] in good yield on treatment with substituted pyridines. The 1H NMR spectrum of [PtMe3(4‐DMAP)2I] (1) in CDCl3 shows no dissociation of the monomeric unit, whil…
A lacunary Keggin polyoxometalate of K8[BW11O39H] · 13H2O was used as an effective and reusable catalyst for pyridine oxidation. Good yields of pyridine N-oxides were obtained in this catalytic system with hydrogen peroxide in water under mild conditions. [Supplementary materials are available for this article. Go to…
BaTiO3 is a well-known technologically important electroceramic material. In the present study high-energy ball-milling processing for producing distortion in the parent thermodynamically stable tetragonal BaTiO3 has been followed. This has produced nano-sized particles as well as a reactive surface. The intention of…
A laser-based technique for deep desulfurization of diesel and other hydrocarbon fuels by removal of dimethyldibenzothiophene (DMDBT), a persistent sulfur contaminant in fuel oils has been developed. We report a selective laser excitation of DMDBT in diesel and model compounds such as n-hexane in a reaction chamber un…
Hydraulic fracturing has become critical to unlock the enormous reserve of gas contained in large deposits of shales throughout the world. However, numerical models that were developed to design hydraulic fracturing treatments for conventional reservoirs are not applicable for the stimulation of gas shales. The work p…
A dual slant-placed electrodes thin-film photocatalytic (PC) reactor was proposed and successfully applied to degrade Amaranth. In this PC reactor, both the TiO2/Ti photoanode and the Cu cathode are slant-placed in the reaction chamber, and aqueous thin-film formed on the surface of both electrodes as wastewater flowe…
To optimise the performance of silicon diffusion barriers, TaN coatings were deposited through reactive magnetron sputtering at various N2/Ar flow ratios (4, 8, 12, 18 and 24%). The effects of the flow ratios on the structures, morphologies, corrosion and mechanical properties of the coatings were investigated in deta…
Based on the expansion and extension of the virial equation of state (EOS) of hard-sphere fluids solved by the Percus–Yevick integration equation, a universal cubic (UC) EOS is developed. The UC EOS is applied to model hard-sphere and Lennard-Jones (LJ) fluids, simple Ar and N2 liquids at low temperatures, and supercr…