Materials Literature
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To optimize the ultrasound irradiation for cavitation based ultrasound applications like sonochemistry or ultrasound cleaning, the correlation between cavitation intensity and the resulting effect on the process is of interest. Furthermore, changing conditions like temperature and pressure result in varying acoustic p…
A vertically aligned (VA) nematic liquid crystal (LC) mode with field-driven continuous domain is demonstrated using a transparent electrode deposited-microlens structure with a matching planarization layer. Due to curved electrodes, an axially symmetric omnidirectional domain of liquid crystal can easily be obtained…
Plasma activation effects on automotive polymers by low temperature plasma at atmospheric pressure have been studied. The aim of this work was the improvement of the polymer surface polarity in order to replace the use of adhesive layers before application of lacquering. Two different concepts of dielectric barrier di…
The semi-solid slurry of 7075 aluminum alloy was prepared by using an innovative non-stirring technology that can be called inverted cone-shaped pouring channel process (ICSPC). The effect of pouring temperature and structural parameters of the channel on the microstructure of semi-solid 7075 aluminum alloy slurry was…
We report on controlling the morphology of tin oxide (SnO2) nanostructures and the study of the effect of surface morphology on structural and optical properties of SnO2 nanostuctures. In present work, Tin oxide (SnO2) nanostructures such as nanowires and nanorods have been grown by thermal evaporation of SnO2 powder.…
Within determinant quantum Monte Carlo simulation, it is found that the armchair graphene nanoribbons show carrier mediated magnetic correlation. The antiferromagnetic correlation dominates around half filling, while the ferromagnetic correlation dominates as electron filling is lower than 0.8. As the ferromagnetic pr…
Silicone rubber nanocomposites were newly fabricated for outdoor insulation in a laboratory scale. Two kinds of mixing devices, namely a triple roll mill and a high pressure-type mixer, were used to compare the dispersibility of nanofillers. Nano-sized silica (SiO2) and boehmite alumina (AlOOH) particles were used as…
The ferromagnetic resonance (FMR) modes are worked out for the case of exchange coupled bilayer thin films where the anisotropy axis in the ferromagnetic film is tilted out of the plane. General formulas are obtained for the mode position, frequency and field linewidths, and intensity for an arbitrary tilt angle. The…
Molecular dynamics simulations have been performed to investigate the solvation characteristics of neutral fullerene (\documentclass[12pt]{minimal}\begin{document}$\rm C_{60}$\end{document}C60) and charged fulleride anion (\documentclass[12pt]{minimal}\begin{document}${\rm C}_{60}^{5-}$\end{document}C605−) in liquid a…
The possibility of using the LnO x mischmetal (Ln = Ce, La, Nd, Pr, Sm) for preparation of cathodes for solid-oxide fuel cells with the supported YSZ electrolyte is studied. The electrical and electrochemical characteristics of Ln-Mn-O electrodes with the ratio of all lanthanides contained in the mischmetal except for…
Silicone rubber (SIR) widely used in the insulation of the prefabricated power cable accessories is actually a kind of polymer composite which is usually composited by neat SIR and several weight percentages of silica (SiO2) particles. The aim of dispersing SiO2powders into the SIR is mainly to enhance the mechanic pr…
Traditionally, CMUTs are modelled using the isotropic plate equation and this leads to deviations between analytical calculations and FEM simulations. In this paper, the deflection profile and material parameters are calculated using the anisotropic plate equation. It is shown that the anisotropic calculations match p…
This study focuses the attachment of gold and silver nanoparticles on commercial micron sized silica particles. The silica was functionalized with amine groups by a commercial silane surfactant and a layer-by-layer process employing polyelectrolytes, respectively. The nanoparticles were produced by conventional water…
Precision measurements of the real and imaginary parts of the microwave surface impedance Z ac(T) = R ac(T) + iX ac(T) of the conducting ac layers of the k-(BEDT-TTF)2Cu[N(CN)2]Br crystals in the temperature interval of 0.5 < T < 100 K have demonstrated a series of features: (i) the temperature course of the field pen…
Conformational changes make the comparison of protein structures difficult. Algorithms that identify small differences in protein structures to identify influences on specificity are particularly affected by molecular flexibility. However, such algorithms typically compare proteins with identical function and varying…
Spacecraft have a serious damage due to the electrostatic discharge accident. Although the polymeric materials are used for surface materials of spacecraft as a multi layer insulator (MLI) and optical solar reflector (OSR), those materials are charged up due to radioactive rays, especially electrons and protons. The c…
Composite insulators have been used in power network systems for more than 20 years in China due to their remarkable anti-contamination performance. Compared to porcelain and glass insulators, the pollution flashover performance of composite insulators is better, whereas their icing flashover performance is still not…
We have investigated the space charge distribution in low density polyethylene (LDPE). Under high dc electric field, a huge amount of positive packet like charge is observed in LDPE. It moves towards the counter electrode under high dc electric field, and then the breakdown finally occurs. The reason of the generation…
Multiwall carbon nanotubes (MWCNTs) and platinum (Pt) were coated on fluorine doped tin oxide (FTO) coated glass by a direct current electrophoretic method, and were used as dye-sensitized solar cell counter electrodes. Scanning electron microscopy (SEM) detected the deposition of carbon nanotubes on FTO-glass. The de…
In this paper, the electronic and optical properties of graphene nanoribbons at both external transverse and modulated longitudinal electric field have been investigated. The single π-band tight-binding method, with the nearest neighbor interactions, is used to describe the electronic properties of the graphene nanori…