Materials Literature
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We theoretically investigate the thermoelectric effects in an Aharonov-Bohm ring with a serially coupled double quantum dot embedded in one arm. An external magnetic field is perpendicularly applied to the two dots. Using the nonequilibrium Green's function method in the linear-response regime, we calculate the charge…
A simple synthetic strategy for synthesis of new series of hetarylazo-heterocycles is described. The effects of solvent on their electronic absorption spectra were analyzed using Kamlet-Taft equation. The results of fitting coefficients indicated that the solvatochromism of the studied compounds is mainly due to the s…
The aim of this work was to obtain anatase nano‐TiO2 by the sol–gel method at room temperature and to achieve self‐cleaning Bombyx mori silk fabrics. Nano‐TiO2 sols based on an aqueous system and an ethanol system were prepared separately by the sol–gel method using tetrabutyl orthotitanate as a precursor at room temp…
Abstract Physicochemical and supramolecular properties of monodisperse amphiphilic short poly(ethylene glycol)s (PEGs) bearing a phenyl group at the one end are studied to investigate the effects of substitution and length of the PEG unit on these properties. It was found that the aromatic substitution encourages thes…
Abstract In this work, PVC–ASA–DOP blends were prepared by melt blending ASA (acrylate–styrene–acrylonitrile) graft copolymer, poly(vinyl chloride) (PVC) resin with dioctyl phthalate (DOP). The effects of AN content on the property of the blends were investigated. The results showed that the mechanical property depend…
A quasi-transverse electric (TE) surface wave mode exists at a metal surface coated with an ultrathin high-index dielectric layer. As the coating is in dielectric stripe arrays, nearly perfect absorption of TE-polarized incidence light is observed in simulations, due to resonances of the quasi-surface waves at each se…
Magnetic tunnel junctions (MTJs) comprising Ta(5)/NiFe(5)/IrMn(15)/CoFeB(5)/Mg(1)/MgO(3.5)/ CoFeB(5)/Ta(5)/Ag(20) (thickness in nm) with (110) oriented CoFeB layers are grown using dual ion beam sputtering. The tunnel magnetoresistance (TMR) of MTJs is found to be significantly bias dependent and exhibits zero bias an…
Reza Takjoo*a, Ponnadurai Ramasami*b, Alireza Hashemzadeha, Lydia Rhymanb, Hadi Amiri Rudbaric & Giuseppe Brunoda Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iranb Computational Chemistry Group, Department of Chemistry, Faculty of Science, University of Mauritius, Réduit, Maur…
The extraction of rhenium from molybdenite roasting dust leach solution was performed using a mixer-settler extractor by tributyl phosphate (TBP) diluted in kerosene as the extractant. In the single-stage extraction experiments, effect of the aqueous to organic phase ratios, Qa/Qo, and the number of extraction stages,…
The effect of synthesis parameter, silicon/aluminum molar ratio, on the engineering properties of alkali-activated blast-furnace paste has been investigated. The article presents the study of the compressive strength and microstructure of alkali-activated blast-furnace slag paste specimens prepared using sodium silica…
Backbone hydrogen bonds are important for the structure and stability of proteins. However, since conventional site-directed mutagenesis cannot be applied to perturb the backbone, the contribution of these hydrogen bonds in protein folding and stability has been assessed only for a very limited set of small proteins.…
A novel nitride, Sr2-yEuyB2-2xSi2+3xAl2-xN8+x (x ≃ 0.12, y ≃ 0.10) (distrontium europium diboron disilicon dialuminium octanitride), with the space group P62c, was synthesized from Sr3N2, EuN, Si3N4, AlN and BN under nitrogen gas pressure. The structure consists of a host framework with Sr/Eu atoms accommodated in the…
PURPOSE: The purpose of this study was to develop an X-Band electron paramagnetic resonance imaging protocol for visualization of oxidative stress in biopsies. METHODS: The developed electron paramagnetic resonance imaging protocol was based on spin trapping with the cyclic hydroxylamine spin probe 1-hydroxy-3-methoxy…
The extractive desulfurization of a model and several real gasoline samples was investigated using imidazolium-based ionic liquids (ILs). Factorial design of experiments indicated that, among several process variables, the number of extraction steps and the IL/gasoline volume ratio were statistically highly significan…
Reverse logistics amended transportation of food waste from local collecting areas to designated treatment facilities produce enormous amounts of greenhouse gas. The Korean government has recently introduced the RFID technology in hopes of reducing CO2 production problems. In this study, we evaluated the reduction of…
The title compound, [(C2H5)4N][FeCl4], has at room temperature a disordered structure in the high-hexagonal space group P63mc. At 230 K, the structure is merohedrally twinned in the low-hexagonal space group P63. The volume has increased by a factor of 9 with respect to the room-temperature structure. At 170 and 110 K…
The influence of the composition of reduced CoMo, NiMo and NiW catalysts on the catalytic performance in hydrodeoxygenation (HDO) of phenol has been investigated. -Al 2 O 3 and TiO 2 were used as supports. Different activity orders were obtained over -Al 2 O 3 and TiO 2 supported catalysts reflecting the critical role…
GaN nanofilms (NFs) with different structures are grown on SiC substrates by pulsed laser deposition under different conditions. The synthesized GaN NFs are studied by X-ray diffraction, field-emission (FE) scanning electron microscopy, X-ray photoelectron spectroscopy, and atomic force microscopy. The GaN NFs are com…
We propose an explanation for the enhanced low- and high-energy tails of the vibrational density of states (VDOS) of nanoparticles (NPs) with respect to their bulk counterparts. Density functional theory calculations of the frequency and eigenvector of each mode allow us to identify radial breathing/multipolar and non…
A novel yellow smoke formulation, based on the environmentally benign dye Solvent Yellow 33, has been validated as a replacement for the current formulation specified for the M194 yellow smoke hand-held signal. Sieve testing has revealed a fine granulation for the candidate mixture, centered at 53 μm. In addition, com…