Materials Literature
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Nylon 6/66 copolymer with 0-10wt% content of hexamethylene adipamide salt (AH-salt) was prepared by melt polycondensation. It was found that the comprehensive performance of the copolymer was the best with 8wt% content of AH-salt through the test of tensile properties and bibulous rate. Compared with the performance o…
Explosion welding is a solid state joining process that allows the manufacturing of corrosion resistant structural composite materials in the form of plates. In the present work, composite bimetal plates of AL-6XN superaustenitic stainless steel and ASME SA516-70 carbon steel produced by welded were studied. Post-weld…
BACKGROUND: The 2013 BioVis Contest provided an opportunity to evaluate different paradigms for visualizing protein multiple sequence alignments. Such data sets are becoming extremely large and thus taxing current visualization paradigms. Sequence Logos represent consensus sequences but have limitations for protein al…
Interfacial contact mechanisms and the superplastic behaviour of fine-grained high carbon steel during solid-state bonding were investigated. According to the results, typical superplastic deformation occurred at the bonding interface under conditions of superplasticity- causing temperature ( T = 1003~1053K), bonding…
Innovative fuel design measures to attain a much higher burnup than that obtained using the conventional concept were investigated for a fast reactor (FR) metal fuel. Considering the typical mechanism of metal fuel degradation, three innovative design measures were proposed: (a) a decrease in plenum pressure by adopti…
A new ultrahigh vacuum (UHV) electron paramagnetic resonance (EPR) spectrometer operating at 94 GHz to investigate paramagnetic centers on single crystal surfaces is described. It is particularly designed to study paramagnetic centers on well-defined model catalysts using epitaxial thin oxide films grown on metal sing…
The metal-insulator transition (MIT) of VO2(M) nanorods was studied. It was found that there were two MITs in the differential scanning calorimetry (DSC) curves of the VO2(M) nanorods, one situated at low temperature from -3 °C to 19 °C and the other was at high temperature of 65–74 °C. The low temperature MIT was alw…
LLocalized laser hardening of steel surfaces performed with optimal parameters not only hardens the surface layer, but is also capable of generating advantageous hook-like shape of residual stress depth distribution. Upon combining two most common methods of XRD and hole-drilling, the residual stresses up to the depth…
We show that a slight asymmetry in the wave function of graphene can result in a significant enhancement of the nonlinear effect on the optical response. The third-order nonlinear current due to asymmetry modification of the wave function increases with k Fa , where k F is the Fermi eigenvector and a is the lattice co…
The vibrational spectrum of crystalline glucose in the region of absorption frequencies characteristic of hydroxyl groups has been studied. It is found that the observed spectrum admits deconvolution into five Lorentz components, which corresponds to the number of hydroxyl groups, with a mean square deviation of 0.99.…
Effects of annealing treatment on growth of rutile TiO2nanorods on structural, morphological and optical properties of TiO2nanorods were investigated. The nanorods were fabricated on p-type (111)-oriented silicon substrates and, all substrates were seeded with a TiO2seed layer synthesized by radio-frequency reactive m…
A convenient one-stage method was applied to the preparation of trans -isomers of 3- and 4- hydroxy-, carboxy-, methoxy-, and methoxycarbonylstyrylbenzo[ f ]quinolines, and the luminescent characteristics of obtained compounds were examined. The quantum yield values of fluorescence of the obtained styrylbenzo[ f ]quin…
The transformerless photovoltaic (TPV) inverters can cause serious common-mode electromagnetic interference (EMI) due to the parasitic capacitors between the solar arrays and ground. In this paper, chaotic SPWM is firstly proposed to suppress the common-mode EMI in TPV inverters. The EMI suppression mechanism of chaot…
Abstract High‐quality polycrystalline polyacenes (PLAs) of anthracene (AN), tetracene (TN), and pentacene (PN) doped with potassium in the 1:1 and 1:2 stoichiometries are prepared and their physical properties are systematically studied by magnetic measurements. The magnetic susceptibilities as a function of temperatu…
CdS thin films were successfully deposited onto glass substrates for the first time by the polyol method using cadmium acetate, thiourea and diethylene glycol as the raw materials. The effects of the deposition temperature from 120 to 200 °C in steps of 20 °C on the structure, morphology and optical properties of the…
The main objective of this research was to develop ultra-high performance concrete (UHPC) as a reliable, economic, low carbon footprint and durable concrete overlay material that can offer shorter traffic closures due to faster construction. The UHPC was optimized using supplementary cementitious materials (SCMs), pro…
Ethanol electro-oxidation activities of electrocatalysts for direct alcohol fuel cells (DAFC), prepared by impregnation-hydrothermal method were investigated by cyclic voltammetry, chronoamperometry, chronopotentiometry and fuel cell tests. In addition, the relation between activity and morphology, chemical and physic…
We investigated the effects of Ar and O 2 treatment and of Ar/O 2 mixedplasma treatment on the electrical characteristics of solution-processed amorphous indium-gallium-zinc-oxide ( a -IGZO) thin-film transistors (TFTs). The electrical performance and the instability of a -IGZO TFTs were significantly improved by the…
Simvastatin (SIM) solid dispersions with Pluronic F127 (PLU) obtained by kneading and fusion methods were characterized by differential scanning calorimetry (DSC), X-ray powder diffraction (XRPD) and Fourier Transform Infrared Spectroscopy (FTIR). DSC studies demonstrate that the SIM/PLU solid dispersions formed a sim…
Nano scale actuators consisting of a free-standing bilayer of ferromagnetic shape memory alloy (FSMA) and silicon with critical lateral dimensions of 250 nm are designed, nanofabricated and characterized in-situ in a scanning electron microscope (SEM). Upon Joule heating and cooling, fully reversible nano actuation in…