Materials Literature
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The liquid crystal phase behavior of linear and partially flexible hard-sphere chain fluids and the solubility of hard spheres in hard-sphere chain fluids are studied by constant pressure Monte Carlo simulations. An extensive study on the phase behavior of linear fluids with a length of 7, 8, 9, 10, 11, 12, 13, 14, 15…
Abstract In this contribution, we use a recently developed Monte Carlo technique to investigate the impact of ferro‐, antiferromagnetic interactions for different thermodynamic parameters in a three‐dimensional Ising‐like model. We present the role of temperature and pressure on the first‐order phase‐transition betwee…
A study is made of the effect of dissolved CO 2 on cavitation inception and activity in an ultrasound system with a sound frequency of 928 kHz. It is shown that measurable cavitation activity is completely absent at moderate acoustic power densities (≤1.7 W cm -2 ) when only CO 2 is dissolved in ultra pure water. It i…
We demonstrate that 2D distributions of non-spherical near-coalescence silver nanoparticles (NPs) embedded in an ultrathin dielectric film can be reorganized, shaped and aligned by exposure to ultrashort laser pulses. As-grown samples prepared by pulsed laser deposition show a broad absorption band with a surface plas…
A new joining process for magnesium alloys, rotation friction drilling riveting (RFDR), is proposed in this paper. In RFDR operation, a semitubular rivet with a grip rod and a rivet cap rotating at high speed is brought to contact with the riveted sheets, generating frictional heat between the rivet and riveted sheets…
BACKGROUND: Multidisciplinary integrated research requires the ability to couple the diverse sets of data obtained from a range of complex experiments and computer simulations. Integrating data requires semantically rich information. In this paper an end-to-end use of semantically rich data in computational chemistry…
Partial discharge (PD) has been identified as one the main root causes of stator winding failures in low voltage (LV) random wound AC motors fed by PWM inverters. To ensure that PWM inverter-fed motors (type I) are PD-free under impulse excitation, the test procedure for acceptance testing of the stator insulation sys…
PURPOSE: To evaluate the feasibility of using micron-sized superparamagnetic iron oxide particles (MPIOs) as an effective labeling agent for monitoring bone marrow-derived mesenchymal stromal cell (BMSC) migration in the brain using magnetic resonance imaging (MRI) in a rat model of stroke and whether the accumulation…
Lead free piezoelectric 0.94(Na 0.5 Bi 0.5 )TiO 3 -0.06BaTiO 3 (NBT-BT) ceramics were synthesized in MPB composition by conventional solid state reaction method. The crystalline nature of NBT-BT ceramic was studied by XRD and the size of the grains are determined by SEM. The X- ray diffraction results reveal that Ba 2…
This paper presents a novel and efficient method to estimate the optimal blend of Silicone Rubber (SiR) and Ethylene Propylene Diene Monomer (EPDM). The SiR and EPDM are widely used insulating materials. Blending of these polymers is one way of obtaining a new material with superior properties of both. Hence blending…
A new mathematical algorithm is reported for the accurate and efficient analysis of pore properties of nanoporous anodic alumina (NAA) membranes using scanning electron microscope (SEM) images. NAA membranes of the desired pore size were fabricated using a two-step anodic oxidation process. Surface morphology of the N…
Based on a molecular mechanics approach pre-buckling and buckling deformations are studied for boron nitride nanotubes (BNNTs) and nanosheets (BNNSs) subject to an electrical field. Due to the reverse piezoelectric effect a compressive or shear force is generated for those of zigzag and armchair structures, respective…
Composite insulators have been used in power system for more than 20 years in China. Compared to porcelain and glass insulators, the pollution flashover performance of composite insulators is better, whereas the icing flashover performance is worse. Shed configuration is a key factor that influences flashover voltage…
Abstract The water–gas shift reaction has been investigated by using DFT applied to Au(1 0 0), stepped Au(3 1 0), and TiO 2 anatase (0 0 1) surfaces. The results show that neither Au nor TiO 2 can catalyze the reaction by themselves. Of CO, CO 2 , H 2 O, and H 2 , only CO adsorbs with moderate adsorption energy at low…
Gallium arsenide (GaAs) is an important semiconductor material. In 2-year inhalation studies, GaAs increased the incidence of lung tumors in female rats, but not in male rats or male and female mice. Alveolar proteinosis followed by chronic active inflammation was the predominant non-neoplastic pulmonary findings. IAR…
Power cable grids have been growing enormously over the years; due to their aging, there is a strong need for Partial Discharge (PD) measurement techniques in order to identify incorrectly installed or damaged cable joints or cavities in cross-linked polyethylene (XLPE) insulated and paper-insulated lead-covered (PILC…
The yield and fracture behaviour of the neat resin was investigated. The parabolic failure criterion was applied to experimental results. From a neat resin slab, specimens for the tensile-, torsion- and compression - tests were manufactured and the failure behaviour of the neat resin due to the actual stress-state was…
In this study, we developed a one step process to synthesize nanogel containing silver nanoparticles involving electron beam irradiation. Water-soluble silver nitrate powder is dissolved in the distilled water and then poly(acrylic acid) (PAAc) and hexane are put into this silver nitrate solution. These samples are ir…
A facile and efficient resolution of omeprazole as the monopotassium salt diethanol solvate using coupled preferential crystallization has been developed. This approach uses small perturbations in solution-phase concentration to control the competing process of selective crystal growth while suppressing unwanted prima…
Abstract We investigated the influence of hydrophilic and hydrophobic imidazolium ionic liquids on the curing kinetic, mechanical, morphological and ionic conductivity properties of nitrile rubber composites. Two room temperature ionic liquids with a common cation—1‐ethyl‐3‐methylimidazolium thiocyanate ( EMIM SCN ; h…