Materials Literature
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The purpose of this research is to experimentally and numerically evaluate the mechanical performance of carbon nanotube (CNT)-reinforced polymer composites subjected to tension in a cryogenic environment. Cryogenic tensile tests were conducted on CNT/polycarbonate composites to identify the effects of CNTs on their t…
Hollow silica spheres with holes on the shells were prepared using l-16Ala6PyBr via a sol-gel method.
Donor–π–acceptor type pyridinium dyes that have been newly synthesized showed bathochromic shift of the absorption band with decreasing dielectric constant (εr) of solvent (negative solvatochromism), and the bathochromic shifts in halogenated solvents were larger than those in non-halogenated solvents of similar εr va…
A 1-cyano-1,2-bis(biphenyl)ethene derivative having hexa(ethylene glycol) groups as amphiphilic side chains showed aggregate-induced enhanced emission in water; upon heating the intensity of the enhanced emission was attenuated in a lower temperature range than the temperature range where exciton interaction is still…
Pristine and shorted multi-walled carbon nanotubes (pMWCNT and sMWCNT, respectively) non-covalently modified with a block copolymer (poly[sodium (2-sulfamate-3-carboxylate) isoprene-b-styrene]—abbreviated as CSI) are used for the formation of CdS semiconductor nanohybrids. The CdS nanoparticles are preferentially loca…
We compare the electronic structures of metal(II) (Co, Ni, Cu) phthalocyanines adsorbed on conducting and insulating substrates: Au(111) and the organic ferroelectric polyvinylidene fluoride (PVDF). The different 3d orbital contributions to the metal phthalocyanines result in different substrate interactions, and diff…
AIM: To present three patients with ocular disease who developed a range of complications following use of traditional medications. SETTINGS AND DESIGN: Case series METHODS: Three patients who were examined in the Ophthalmic department of a tertiary care teaching hospital in the Sultanate of Oman between 2003 and 2004…
Mesoporous oxide fibers were prepared in one-pot by permeating surfactant-containing clear precursor solutions into the confined spaces of polycarbonate membranes and subsequent calcination.
Among the various Mn compounds, both and are electrochemically active in supercapacitor studies. and are simultaneously deposited, through a one-pot method, on the anode and cathode, respectively, of a galvanostatic electrolysis cell consisting of aqueous electrolyte. and coated stainless steel (SS) electrodes are fou…
Features of synthesis of particles, wires, tubes, films and bulk materials based on sili- con carbide in nanocrystalline/amorphous condition are considered. The main attention is taken to the preparation of nanotubes/nanowires, films and nanosized SiC inclusions in matrixes. Their structure, physical, chemical and mec…
Sr 3 SiO 5 : Eu 2 + , Dy3+ exhibits a strong orange phosphorescence and photostimulated luminescence, originating from 4f65d-4f7 transition of Eu2+, after ultraviolet exposure. Shallow and deep traps are evidenced by thermoluminescence spectrum and decay curve of phosphorescence, which consists of a very fast and a sl…
Abstract: The concentration of sodium bicarbonate as a chemical blowing agent was varied to evaluate its effect on the morphology and impact properties of natural rubber foam. The expandable rubber samples were prepared using a conventional two-roll mill and were then expanded via a heat transfer foaming process using…
We present a density functional theory study on the shape and arrangement of small BN domains embedded into single-walled carbon nanotubes. We show a strong tendency for BN hexagon formation at the simultaneous inclusion of B and N atoms within the walls of carbon nanotubes. The work emphasizes the importance of a cor…
The main objective of this paper is to investigate the thermal properties of the kenaf cellulose (0 - 50 %wt) and the low-density polyethylene (LDPE) composites. In addition, the effect of two different weights of compatibilizing agent, polyethylene glycol (PEG),was examined. Each sample of biocomposites was subjected…
An efficient one-pot aqueous synthesis of alloyed Cd1−xHgxTe nanocrystals (NCs) is realized and the influence of the experimental conditions and of the initial composition of the NCs on their optical properties is discussed. This approach obtains stable NCs with an emission tunable in the red and the near infrared (NI…
The syntheses, structural characterisation, and magnetic and spectroscopic properties of three new polymorphs of the spin-crossover complex [Fe(sal2-trien)][Ni(dmit)2] are reported. The results are discussed as a function of their intra- and intermolecular arrangement. Correlation of their crystal structures and magne…
Electron injection from a silver cathode into a polyethylene terephthalate film, and electron extraction at the anode, have been experimentally demonstrated. There is no experimental evidence of a threshold electric field for injection or extraction.
Abstract—The surface wave modes in the chiral negative refraction grounded slab waveguides in which the slab or cladding consists of chiral negative refraction metamaterial are investigated. The dispersion relations, electromagnetic fields, energy flow distribution and the total power of surface wave modes are present…
We have recently reported that “luminescent” SixGe1−x can be electrodeposited from 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide ([Py1,4]Tf2N) at room temperature. Interestingly, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([EMIm]Tf2N) ionic liquid delivers a germanium-rich SixGe1−x…
The corrosion of zinc in 0.01 to 0.04 M H 2 SO 4 was studied using gravimetric and gasometric methods of monitoring corrosion. The results obtained indicate that clarithromycin is a good adsorption inhibitor for the corrosion of zinc in H 2 SO 4 . The inhibition efficiency of clarithromycin increases with increasing c…