Materials Literature
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Hybrid-particle-element methods developed for woven fabric impact modeling offer a new computational approach to fabric barrier design. Simulations performed using this technique have shown good agreement with small fragment impact experiments, and they capture the complex multilayer fabric dynamics observed in high-s…
The effect of an acoustically driven bubble on the acoustics of a liquid-filled pipe is theoretically analyzed and the dimensionless groups of the problem are identified. The different regimes of bubble volume oscillations are predicted theoretically with these dimensionless groups. Three main regimes can be identifie…
Biodegradable stent is considered as an innovative approach to treat coronary artery occlusion. It is expected to provide scaffolding function during the healing period and progressively disappear thereafter leaving no foreign remnant in the vessel. Progress on biodegradable stents depends on the development of their…
The adsorption properties of the original TiO2, MgO, and SiO2 surfaces and those modified with nanoscale gold and nickel particles are studied using the dynamic sorption in a range of low coverages. N-alkanes (C6–C9) and adsorbate molecules with different donor and acceptor properties were taken as the reference compo…
The effects of excess (up to 0.1 at %) Te atoms and heat treatment at 473 and 573 K for 120 h on the conductivity σ, thermopower α, and Hall coefficient R of PbTe single crystals are studied. It is shown that excess Te atoms and annealing strongly affect the values and character of the temperature dependences of these…
Electrospinning is a popular technique for producing micro-or nanofibers for diverse applications including filtration, catalysis, sensors, cosmetics, wound dressing and tissue engineering. In some applications such as controlled drug/biomolecule delivery, core-shell structured nanofibers are desired. There are two ma…
The GIR1 branching ribozyme constitutes a separate class of naturally occurring ribozymes. Most studies have been performed with the single GIR1 known from the myxomycete Didymium iridis whereas the large number of GIR1s found in the amoeboflagellate Naegleria has remained largely uncharacterized. Here, we investigate…
In this study, doxorubicin (DOX)-loaded long circulating liposomes combined with curcumin (CUR) (DOX-CUR-LCLs) were successfully prepared as a novel formulation for cancer treatment. The particle size and distribution, zeta potential, drug loading capacity, and entrapment efficiency (EE) of the preparation were charac…
Herein, we present a straightforward method to achieve optically active films based on porphyrin derivatives. The introduction of an aminoacid functionality on the porphyrin platform confers to the macrocycle both the amphiphilic and chiral character exploited for its solvent-promoted self-aggregation leading to the f…
The specific heat capacity of gallium nitride (GaN) was measured for polycrystalline powder and single crystal samples. We present the temperature dependence of the specific heat capacity for single crystal and powdered GaN from 100 to 1300 K. The difference between the polycrystalline powder and single crystal arises…
In this paper, a corona ring design for a 400 KV non-ceramic overhead line insulator used in Abu Dhabi Transmission and Dispatch Company (TRANSCO) was simulated using COMSOL Multiphysics software. Three parameter were changed during the investigation which are: the ring diameter (R), the diameter of the ring tube (r)…
The fluorescence emission and enhancement of Rhodamine 6G on the silver island films (SiFs) with and without 4-Aminothiophenol molecules have been investigated. It was found that the SiFs without 4-Aminothiophenol molecules (PATP) have less contribution to the fluorescence enhancement. However, when PATP molecules as…
This article investigates the formation mechanism of epitaxial graphene on 6H-SiC (000 ) substrates under low pressure of 2 mbar environment. It is shown that the growth temperature dramatically affects the formation and quality of epitaxial graphene. The higher growing temperature is of great benefit to the quality o…
Shuttle-like lead tungstate (PbWO 4 ) microcrystals are synthesized at room temperature using the precipitation method with the cetyltrimethyl ammonium bromide. Results from both the X-ray diffraction and the scanning electron microscopy show that the lattice distortions of the PbWO 4 microcrystals are reduced signifi…
*High α-cellulose has been dissolved in two non-degrading solvent systems like dimethyl sulfoxide/paraformaldehyde (DMSO/PF) and N,N-dimethyl acetamide/lithium chloride (DMAc/LiCl) and then fractionated to different molecular weight fractions by regeneration technique. Esters of the different molecular weight fraction…
The effects of finishing steps on hollow and solid polyester/wool have been studied in order to establish the processing behaviour and performance characteristics of fabrics from these fibres. The effect of hollow fibres on fabric tensile strength, pilling, and crease recovery were studied. In addition, the water vapo…
A simple phosphoroscope with no moving parts is described. In one scan the total luminescence, the long-lived phosphorescence, and the short-lived fluorescence can be determined. A 50% duty cycle excitation from a diode laser is used to excite the sample, and from the digitized waveform the phosphorescence is extracte…
In this paper we report superconductivity in single crystals of the new iron-pnictide system CaFe 2− x Ir x As 2 ( x =0, 0.05, 0.10, 0.13) grown by a self-flux solution method and characterized via X-ray, transport and magnetic measurements. The magnetic ordering associated with a structural transition at 160 K presen…
Previously, experimental results have been presented showing that Mn-Zn ferrite core losses rise significantly with dc bias levels due to an increase in magnetostrictive vibration. In addition, it has been shown that the presence of a high level of remanent flux density, Br, left within a core after the removal of a d…
BACKGROUND: Vascular parameters, such as vascular volume, flow, and permeability, are important disease biomarkers for both type 1 and type 2 diabetes. Therefore, it is essential to develop approaches to monitor the changes in pancreatic microvasculature non-invasively. METHODS: Here, we describe the application of th…