Materials Literature
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The effects of carbon sources, cooling rate, alloying elements and heat treatment on the morphology of TiC were investigated in arc melted TiC/Ti–6Al–4V composites. It was observed that different carbon sources of the composites led to different morphologies of TiC, and the carbon source of carbon powder was found to…
OBJECTIVE: To evaluate medium-term knowledge retention of dental personnel following attendance at a postgraduate course in radiation protection. SUBJECTS AND METHODS: Knowledge was measured using identical pre- and post-course validated single best-answer multiple-choice instruments, administered immediately before a…
Engineered nanomaterials (ENMs) are defined as having at least one dimension ≤100 nm 1. When ENMs have three dimensions ≤100 nm they are called nanoparticles (NPs). ENMs have attracted a great deal of attention recently because their many technologically interesting properties have led to technological growth with ens…
The effect of incorporating organic acids in whey protein based edible film, and its antimicrobial activity has been studied. Four organic acids namely acetic, lactic, propionic and benzoic acids (5% v/v each) were incorporated in whey protein based edible film, and their antimicrobial activity was tested using Lactob…
New hexa-coordinated ruthenium(III) complexes of the type [RuX(EPh3)2L] (X Cl or Br; E P or As; L deprotonated dibasic tridentate Schiff base ligand) have been synthesized by the reactions of [RuCl3(PPh3)3], [RuCl3(AsPh3)3] or [RuBr3(AsPh3)3] with the appropriate Schiff bases. The Schiff bases were synthesized by the…
Powder layering technique was evaluated using laboratory scale centrifugal granulator instrument to prepare extended release pellet dosage form of ketoprofen. Ethyl cellulose and shellac polymers were used for drug layering and extended release coating in the same apparatus. Inert sugar spheres were intermittently tre…
Polydiacetylenes (PDAs) have gained much interest in recent years because of their distinctive chromatic transition property. The PDA molecules can be self-assembled into thin films or vesicles that could undergo blue-red transformations in response to different stimuli, like temperature, pH, and the presence of biolo…
Investigations have been carried out regarding the influence of high-frequency peening methods on the fatigue strength. These methods cause plastifications at the weld toe, which change the local weld toe geometry and produce compressive residual stresses at the surface as well as surface hardening. Two different tech…
Calculation of the properties of dislocations by computer simulations requires, among other things, the availability of accurate interatomic potentials, ideally with ab-initioquality. For crystals with large unit cells and complex crystal structures, such as most minerals, the number and size of the calculations may s…
Although differing only by the Ala→Gln substitution at the fifth or seventh position of the α3-peptide amino acid sequence (Leu-Glu-Thr-Leu-Ala-Lys-Ala)3, the 5Qα3 variant forms fibrous assemblies more attenuated than those of the α3-peptide, while the 7Qα3 variant does not form fibrils. A tight-binding transport mode…
Electrochemical DNA sensors have been increasingly fascinating due to high sensitivity, specificity, portability and integrated compatibilities with microelectronics. Numerous strategies have been developed to design electrochemical DNA sensors with high sensitivity and selectivity. In this review, we will focus on th…
Controlling and understanding an impurity doping on semiconductor oxide nanowires grown by the vapor-liquid-solid (VLS) method remains an important challenge. Homogeneous dopant distribution within oxide nanowires has been assumed without the direct evaluations to interpret the transport properties. Here we report the…
Einkristall bleibt Einkristall: Ein kristalliner Charge-Transfer-Komplex aus den Titelverbindungen geht unter UV-Bestrahlung oder beim Erhitzen eine radikalische topochemische Polymerisation ein. Diese cis-spezifische Copolymerisation der substituierten Chinodimethane im Festkörper erfordert eine Verkippung der altern…
This paper describes a novel configuration of permanent-magnet magnetic systems for high-power Faraday isolators that are used in high-power lasers. An increase in magnetic field is ensured by magnets with a magnetisation vector inclined to the isolator axis. Numerical simulation results agree well with experimentally…
Protein folding and hydrodynamic turbulence are two long-standing challenges, in molecular biophysics and fluid dynamics, respectively. The theories of these phenomena have been developed independently and used different formalisms. Here we show that the protein folding flows can be surprisingly similar to turbulent f…
An ultrahigh ON/OFF-current ratio of 5 × 109is presented in a resistive memory device using Au nanoparticles (Au NPs)-incorporated poly(N-vinylcarbazole) (PVK) and poly(3, 4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT-PSS) stacking configurations as the active layer and Al as electrodes for nonvolatile-memor…
Electron backscatter diffraction (EBSD) techniques were used to characterize "hot-rolled" quenched and partitioned microstructures produced via Gleeble thermal simulations representing a hot-strip cooling practice for steel. In particular, EBSD was utilized to positively identify the morphology and location of retaine…
The half-filled one-dimensional Holstein-Hubbard model presents, at zero temperature, a charge-density-wave (CDW) phase and a Mott insulator phase. Recent results have shown that the transition from one phase to the other might proceed through an intermediate metallic phase. In this work, we determine the CDW phase bo…
A variation of scanning gate microscopy (SGM) is demonstrated in which this imaging mode is extended into an electrostatic spectroscopy. Continuous variation of the SGM probe's electrostatic potential is used to directly resolve the energy spectrum of localized electronic scattering in functioning, molecular scale dev…
High voltage durative discharge was applied to unidirectional solidifying pure aluminum by discharging capacitor bank. The conditions to modify solidification structures, including initial voltage and capacitance of capacitor bank, were examined. The experimental results showed that the solidification structure was mo…