Materials Literature
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Supported Pd nanoparticle catalysts over Mg–Al mixed metal oxides derived from layered double hydroxides were prepared by three different approaches, including coprecipitation, anion-exchange, and impregnation, in order to enhance the metal dispersion and thus facilitate the growth of uniform multiwalled carbon nanotu…
By quasi-chemical reaction method for FeTiO3 material in oxygen atmosphere, electron and hole concentrations for broad range of oxygen partial pressure have been calculated. Oxygen pressures, at which electrical and hole conductivity can be achieved, were estimated. Thin layers of FeTiO3 have been grown on transparent…
This research work focus on the development of jute reinforced biodegradable nano-biocomposite using soy milk as matrix and nanoclay as additive. These composites were characterized for mechanical, dynamic mechanical properties, and moisture sensitivity. X-ray diffraction (XRD) and transmission electron microscopic (T…
Material point method (MPM) discretizes the material domain by particles, and solves the momentum equations on a predefined background mesh. MPM avoids mesh entanglement and involving convection term, by taking advantages of both the Lagrangian and the Eulerian methods. So it is very promising in the numerical simulat…
Year 2010 marked the 25th year since we came to know that roughness of a protein surface has fractal symmetry. Ever since the publication of Lewis and Rees' paper, hundreds of works from a spectrum of perspectives have established that fractal dimension (FD) can be considered as a reliable marker that describes roughn…
A significant improvement in fiber-reinforced polymeric composite materials can be obtained by incorporating a very small amount of nanofillers in the matrix material. In this study, an ultrasonic liquid processor was used to infuse carbon nanofibers into the polyester matrix which was then mixed with a catalyst using…
Hot deformation characteristics of 316 stainless steel were investigated at elevated temperatures. Hot compressive tests were carried out in the temperature and strain rate ranges from 900 to 1100 °C and 1 × 10 −1 to 1 s –1 , respectively. Correlation between the flow behavior and the microstructural evolution was ana…
Abstract Gold nanoporous film (AuNPF) was grown on gold substrate by electrochemical oxidation of the gold electrode at 5 V for 180 s in phosphate buffer (pH 7.4) followed by reduction of the oxidized gold with ascorbic acid solution. Atomic force microscopy (AFM) showed the porous nature of the prepared film. In cycl…
The aim of this paper is to investigate the distribution of a continuous homopolymer in the presence of an attractive finitely supported potential. The most intricate behavior can be observed if we simultaneously vary two parameters: the temperature, which approaches the critical value, and the length of the polymer,…
The thermal stability under isochronal annealing of the GeSi/SiO2 interfaces in the condensation grown silicon-germanium-on-insulator (100)Si/SiO2/Ge0.75S0.25/SiO2 structure has been assessed by electron spin resonance in terms of occurring interface defects. As to annealing in vacuum, this reveals thermal post-growth…
Light trapping techniques are one of the key research areas in thin film silicon photovoltaics. Since the 1980s randomly rough textured front transparent oxides (TCOs) have been the methods of choice as light trapping strategies for thin-film devices. Light-trapping efficiency can be optimized by means of optical simu…
State-filling dynamics in self-assembled InAs/GaAs quantum dots (QDs) is studied through their steady-state photoluminescence (PL) using a variant of picosecond excitation-correlation (EC) spectroscopy. Steady-state PL showed an interesting transition from bimolecular recombination at low-excitation fluence to exciton…
We present an experimental demonstration of a quantum dot (QD)-based plasmon emitter controllably integrated in designed patterns on a thin metal film. The generation of surface plasmons polaritons (SPPs) from optically excited QDs on a thin metal film is experimentally demonstrated. Long-range, low-dispersion, two-di…
The absorption spectra of thin films of (KI)₁₋x(PbI₂)x 0.1≤ x≤ 0.5 were investigated in the spectral interval 2–6 eV. The formation of two compounds KPbI₃ and K₄PbI₆ in system KI–PbI₂ was determined on the basis of the spectra analysis. It was shown, that exciton excitations in the investigated compounds are localized…
In this work, a kind of silver-containing inorganic antibacterial powder was doped into acrylonitrile butadiene styrene (ABS) using an injection molding process. The results showed that the doping process could bring out a uniform distribution of antibacterial powder in the ABS matrix. An initially high (and later sus…
A protein with the reversed direction of its polypeptide chain, retro-SHH, was analyzed by several spectroscopic techniques including circular dichroism and high-resolution NMR to understand its solution structure and structural consequences of interaction with the micelles formed by the zwitterionic detergent dodecyl…
In neutral and acidic solution, homonuclear s-block metal complexes [Sr2(1,3-pdta)(H2O)3.5] n (1), {[Ba2(1,3-pdta)(H2O)6]·H2O} n (2), {[Sr(1,3-H2pdta)]·(H2O)} n (3), and [Ba(1,3-H2pdta)(H2O)3] n (4) {1,3-H4pdta=1,3-propanediamine-N,N,N′,N′-tetraacetic acid, CH2[CH2N(CH2CO2H)2]2} were isolated. In 1 and 2, hexadentate…
Abstract We performed the first reported static high pressure studies of the wide bandgap material aluminum nitride (AlN) using mid‐infrared (IR) and X‐ray Raman spectroscopy (XRS) up to 35 and 33 GPa, respectively, in a diamond anvil cell (DAC) at ambient temperature. For the first (IR) experiment, we employed a sync…
Impact of codoping on structure, optical, and scintillation properties of Gd₂Si₂O₇:Ce (GPS:Ce) crystals doped with La³⁺ and Sc³⁺ have been considered. GPS:Sc,Ce and GPS:La,Ce crystals have been obtained by the Top Seeded Solution Growth method with SiO₂ self-flux. Codoping influences the type of structure, density, as…
In order to use an electric induction motor to power an automotive vehicle, heat occurred in a motor is an important issue. Generally, an induction motor could be operating at a high load for many extensive periods. The generated heat in motor could cause damage on motor parts subsequently decreasing their useful serv…