Materials Literature
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Fe(3)O(4)@Au/polyaniline (PANI) nanocomposites were fabricated by in situ polymerization in the presence of mercaptocarboxylic acid. The mercaptocarboxylic acid was used to introduce hydrogen bonding and/or electrostatic interaction; it acts as a template in the formation of Fe(3)O(4)@Au/PANI nanorods. The morphology…
Abstract Thermomechanical and thermal properties of whey protein, maize prolamin protein (zein), and the laminated whey protein–zein films were studied. The dynamic mechanical (thermal) analysis (DMTA) results showed that the single zein film had higher T g than single whey protein and zein–whey laminated films. The s…
Abstract Using a unique glancing angle co‐deposition technique, face‐centered cubic Ag nanoparticles have been embedded into aligned polycrystalline MgF 2 nanorods with different topological shapes, such as tilted, zigzag, vertical, and helical nanorods. The optical properties of the artificial nanocomposite materials…
Transformer design optimization is determined by minimizing the transformer cost taking into consideration constraints imposed both by international specifications and customer needs. The main purpose of this work is the development and validation of an optimization technique based on a parallel mixed integer nonlinea…
We have systematically studied the effect of pH and 1,3-diaminopropane additive concentration on the morphology of ZnO nanorod and nanoneedle arrays grown in aqueous solution using a variety of seed layers. Increase in the growth solution pH from 6.8 to 13.2 resulted in a near doubling of the growth rate in the [0001]…
In this study, a novel sono-Fenton system based on Fe@Fe 2 O 3 core−shell nanowires was used to degrade a recalcitrant pollutant, pentachlorophenol (PCP). We studied the influence of the pH value and the atmosphere on the degradation efficiency and the production of oxidative free radicals (such as ·OH radicals). The…
The Raman spectra of ${\text{Bi}}_{2}{\text{CoMnO}}_{6}$ (BNMO) thin films, grown on (001)-${\text{SrTiO}}_{3}$, (001)-${\text{NdGaO}}_{3}$ (NGO), and (110)-${\text{DyScO}}_{3}$ substrates, have been measured in the temperature range 80--700 K. The spectra are similar to those of ${\text{La}}_{2}{\text{NiMnO}}_{6}$ an…
The paper proposes a new fixed-point method for solving time-stepping hysteretic field problems. The method is aimed to speed up the convergence of the fixed-point solution and enhance the applicability of the fixed-point iteration. The method makes use of the differential reluctivity and produces a locally convergent…
The ability of gypsum, a common sulfate mineral, to host arsenic atoms in its crystalline structure, is demonstrated through experimental structural studies of the solid solutions formed upon synthetic coprecipitation of gypsum (CaSO4 x 2 H2O) and arsenic. Neutron and X-ray diffraction methods show an enlargement of t…
Nanofilms of Y-doped zirconium pyrophosphate, with a molar composition of Y0.95/Y0.05/P2.64, exhibit high proton conductivities with an area-specific resistance of 0.085 Ω cm2. The films are very stable, even when operating in the flow of dry air at 340 °C for a prolonged period of time (see figure).
This paper introduces a novel technique for iron loss minimization of wound core transformers. The proposed technique involves the evaluation of appropriate design variables of wound cores constructed by a combination of standard and high magnetization grade steel. The evaluation of the optimum design variables of the…
A circular cylindrical and an oblate cylindrical perfect lens are designed by using coordinate transformation theory. Theoretical analyses are performed to give an insight into the variant angular magnification in the oblate cylindrical perfect lens. We further take advantage of the oblate cylindrical coordinate syste…
Abstract Regenerated cellulose was prepared from microcrystalline cellulose (MCC) via dissolution in three well‐known nonderivatizing systems: ferric chloride/sodium tartarate/sodium hydroxide (FeTNa), sodium hydroxide/thiourea (NaOH/thiourea), and N ‐methylmorpholine‐ N ‐oxide (NMMO) systems. The effect of regenerati…
Abstract An interfacial polymerization was used to fabricate dodecybenzenesulfonic acid (DBSA)‐doped polyaniline (DBSA‐PANI) nanorods with diameter range from 40 nm to 1 μm. The molar ratio of aniline to ammonium peroxydisulfate (APS), the concentrations of DBSA and reaction temperature had an effect on the morphology…
Abstract Polymer dispersed liquid crystal (PDLC) films were prepared by photopolymerization of liquid crystal (LC)/polymerizable monomers/photoinitiator composites. The effects of the structures of the polymerizable monomers on the electro‐optical properties of PDLC films were investigated. It was found that the lengt…
A novel magnetic nanocarrier (CD-GAMNPs) was fabricated for targeted anticancer drug delivery by grafting cyclodextrin (CD) onto gum arabic modified magnetic nanoparticles (GAMNPs) using hexamethylene diisocyanate (HMDI) as a linker. Analyses by transmission electron microscopy (TEM) and dynamic light scattering (DLS)…
In this paper, the vibrations of the magnetic cores of power transformers due to magnetostriction are studied. To achieve this, a magnetostriction model based on magnetostriction measurements is needed. Two different magnetostriction models are compared, and their advantages and drawbacks are discussed. The first mode…
In this article, we report on the influence of reactive compatibilization on the morphological and rheological properties of blends of polyamide 6 (PA 6) and a styrene−acrylonitrile copolymer (SAN). PA 6/SAN blends with two different composition ratios (70/30 and 30/70) and varying concentration of a styrene acrylonit…
The temperature-dependent electronic states of FeSi have been studied by using high-resolution angle-resolved photoemission spectroscopy (ARPES) and using low-energy tunable photons. At low temperatures, a peak indicating the valence-band maximum (VBM) exists at a binding energy of $\ensuremath{\sim}20\text{ }\text{me…
Abstract The crystallization behaviors and morphology of asymmetric crystalline–crystalline diblock copolymers poly(ethylene oxide‐lactide) (PEO‐ b ‐PLLA) were investigated using differential scanning calorimetry (DSC), wide angle X‐ray diffraction (WAXD), and microscopic techniques (polarized optical microscopy (POM)…