Materials Literature
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The electrical properties of the chalcogenide AgSnSbSe 3 have been investigated over a wide range of variations in external parameters, such as the temperature, the pressure, and the frequency of the electric field. It has been found that the temperature dependence of the permittivity and the dependence of the electri…
This study aimed to enhance boron removal through powdered activated carbon adsorption (PAC) and application of a micro-filtration (MF) process as a pretreatment of a seawater reverse osmosis (SWRO) process. Batch and continuous experiments were conducted to investigate the effect of membrane filtration as well as PAC…
Amorphous Si-rich silicon carbide films were prepared by magnetron co-sputtering and subsequently annealed at 900-1100 degrees C. After annealing at 1100 degrees C, this configuration of silicon quantum dots embedded in amorphous silicon carbide formed. X-ray photoelectron spectroscopy was used to study the chemical m…
There has been little progress for removing soot and NOx simultaneously from the emissions of diesel engines. For soot combustion, the current commercial choice is Pt-based catalysts, which are expensive and sulfur sensitive. For NOx storage, Ba in Pt-Ba/Al2O3 has some drawbacks of reacting easily with SOx and Al2O3 t…
We have investigated the optical resonance and near field inside and under absorptive polystyrene (PS) microspheres on Si wafers. Near field flat plane images of PS microspheres were numerically simulated. Nanostructures were prepared on Si substrates using the regular two dimensional (2D) arrays by a single pulsed la…
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ZnO is one of the most promising materials for gas sensor. Nanogranular films with ultrahigh surface-to-volume ratio have great potential in gas sensor application. In this paper, Al doped ZnO nanogranular films were fabricated by layer-by-layer (LBL) self-assembly method and the gas sensitivity of ZnO films were inve…
Synthesis of titanium diboride has been carried out using thermal plasma processing technique. Thermody- namic simulations have been carried out to determine the molar ratio of the reducing gas to be used in TiO2-B2O3- CH4 system. The reducing gas used was methane and the molar ratio of reducing gas to that of the sol…
Mesoporous matrixes of activated carbon (AC) are normally synthesized using the hard or soft template method. This work explores a template-free method to synthesize a mesoporous AC matrix through creating interchain bonding in its precursor. Hydroxyethyl cellulose (HEC) was adopted as a precursor, and its polymer cha…
Under the generalized gradient approximation, the electronic structures and magnetic properties of Fe (1− x ) Co x alloy nanowires encapsulated inside zigzag (10,0) carbon nanotubes (CNTs) are investigated systematically using first-principle density functional theory calculations. For the fully relaxed Fe (1− x ) Co…
High-power pulsed magnetron sputtering (HPPMS or HiPIMS) is an emerging coating technology that produces very dense plasmas and highly ionized sputtering atoms. This paper is focused on discharge properties, unbalanced features and temporal evolution of pulse current of the HPPMS discharge. A hollow cathode was used t…
We report here for the first time a one-pot simultaneous synthesis and antibacterial properties of Ag-TiO 2 nanocomposites via ethylene glycol medium. The salient features of this method include simple operation, large scale production and one medium (solvent) to produce two different nanoparticles. Clusters of Ag and…
Several papers published in recent years on the Gruneisen parameter and its volume derivatives, are found to be inconsistent with the thermodynamic constraints developed by Stacey. The shortcomings have been rectified by using the Stacey formulations for the Gruneisen parameter. The results for the volume dependence o…
This article discusses experimental data and their theoretical interpretation concerning the volume magnetostriction, spontaneous magnetostriction, variation of magnetization under the action of pressure, and elastocaloric effects in rare-earth metals, as well as their alloys and compounds. Particular attention is pai…
Abstract Hydrolytic degradation of poly(ε‐caprolactone) [PCL] can be enhanced by introduction of 8 wt.% glycolide leading to poly[(ε‐caprolactone)‐co‐glycolide] (PCG), which has a low elongation at break εB of 4%. PCG/PCL blends (50/50 w/w) combined the advantageous features of its individual components such as mechan…
The aims of the present work were to study the relationship between the fluxes, permeate quality, and fouling mechanism. A polysulfone membrane with 100 KDa and 0.12 m² of surface area was used. Permeate fluxes were measured for different pressures (0.5, 1.0, 1.5, and 2.0 bar) at the same temperature of 8 ºC. The flux…
Conformational and dynamic properties of proteins and peptides play an important role in their functioning. However, mechanisms that underlie this influence have not been fully elucidated. In the present work we computationally constructed analogs of heptapeptide AFP(14-20) (LDSYQCT) - one of the biologically active s…
Rhizopus stolonifer is the causal agent of soft rot, postharvest disease that causes important economic losses. Synthetic fungicides such as dichloran have been used to control this microorganism; however, it has been shown that fungicides represent a risk for the environment and human health. Actually, natural altern…
A new mineral of the neptunite group, magnesioneptunite KNa2Li(Mg,Fe)2Ti2Si8O24, a Mg-dominant analogue of neptunite and manganoneptunite, has been found in the Upper Chegem caldera near Mount Lakargi, Kabardino-Balkaria, the North Caucasus, Russia in a xenolith of altered sandstone located between skarnified carbonat…
This paper presents a compact double negative metamaterial (MTM) absorber unit cell four-element arrayed electric-LC (ELC) resonators. Overall size of the proposed unit cell is 9mm × 9mm × 2mm. The proposed four-element arrayed ELC resonator where the external magnetic field is normal to the plane of the ELC resonator…