Materials Literature
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Flow batteries are being considered as a potential candidate for large scale energy storage system, however, main issue with them is their higher cost due to the electrode materials and membrane used in them. In this regards, current work is focused on the development of cost effective flow batteries. In order to redu…
Measurement Current transformer error compensation unit (MCT-ECU) is developed which is exclusively designed for providing compensation to all kinds of measurement current transformers (MCTs). The proposed MCT-ECU is based on derivation and employment of correction coefficients, which are determined by the ratio and p…
In recent decades, composite materials have been used in a large number of aircraft applications due to their light weight and high temperature resistance. However, due to the fact that the electromagnetic properties of composite materials are far less than those of pure metals, this poses a challenge to the design of…
In literature, there are many papers on the sums of element orders of finite groups. In this study we deal with the cases in symmetric groups. Our main aim is to investigate the sums of element orders in symmetric groups and to give some properties of the sum of element orders in symmetric group. Moreover, we derive t…
This paper reports a novel electrochemical method for the detection of insulin in ultra-pure water. A screen printed electrode (SPE) modified by Nickel hydroxide was used as the working electrode, one with good activity of electro-catalytic oxidation-reduction for insulin. The SPE was modified by Nickel hydroxide usin…
The behavior of hydrogen in metals and their alloys is of great interest, since hydrogen–metal systems are used in practice for absorption of nuclear radiation, in neutron sources, and for hydrogen storage. This study is focused on simulation of the behavior of hydrogen in titanium hydrides at ultrahigh concentrations…
We study the effect of the treatment by an electric current of two-layer gas diffusion electrodes made of porous (66–68 vol %) composite material based on A-437E acetylene black and polytetrafluoroethylene. Polarization is carried out cyclically in the range 0.0 ± 2.0 V by anodic and cathodic currents, respectively, i…
Detection of light in the near- and short-wave infrared spectral region is of great interest for applications ranging from imaging to sensing. However, silicon commonly employed for photodetectors is limited in its spectral range to wavelengths of 400...1100nm due to its band gap of ~1.1eV. Materials for light detecti…
Arsenic contamination for drinking water is still a great health hazardous issue for both developed and developing countries. Numerous techniques have been implemented for removing arsenic from drinking water. However, more emphasis has been given on the removal technique related to carbon nanotube absorbent. This stu…
Polishing slurries for SiO2-CMP have been found to specifically enhance the material removal rate for SiO2under certain condition. By extracting its key parameter, further enhancement of the removal rate for SiO2is expected. In this study, key parameters to enhance removal rate for SiO2were investigated based on the c…
Abstract Anisotropic polymer films containing aligned Au nanorods and semiconductor nanoparticles of various shape were fabricated. The photoluminescence of semiconductor nanoparticles in these films is partially polarized. The value of the photoluminescence polarization degree of quantum dots embedded in an anisotrop…
Electrical storage components such as ultracapacitors (UC) attract enlarged regard in different industry sectors from electric vehicles up to renewable power plants. Among existing storage technologies stand out asymmetric Li-ion hybrid and symmetric double-layer UC. Both devices able to provide prominent charge/disch…
Abstract An explicit expression for the energy of interaction between two spherically symmetric particles via the strain field in cubic crystals is obtained with an accuracy up to quadratic terms with respect to the anisotropy parameter d = c11 – c12 – 2c44. The diagrams depicting the regions of attraction and repulsi…
A cross-shaped dielectric reflectarray element with continuous variation of permittivity is proposed in this paper. An improved method is used to retrieve the effective permittivity of a slab of metamaterial from its S parameters. A continuously changed permittivity from 1.4 to 5.0 and a full 360° range of phase shift…
Abstract The report presents the results of systematic first-principle FLAPW–GGA calculations of a series of metallic tetraborides MB4 (where M = Ru, Rh, Pd, Os, Ir, and Pt) with space groups Pmmn, Immm, R-3m, and Pnnm. Their equilibrium structural parameters, cohesion and formation energies, elastic constants, anisot…
This study deals with the effect of microstructure factors on the strain aging properties of API X70 pipeline steels with different microstructure fractions and grain sizes. The grain size and microstructure fraction of the API pipeline steels are analyzed by optical and scanning electron microscopy and electron backs…
Sonication decellularization technique has shown effectiveness to remove all the cellular components by the disruption of the cell membranes and removal of the cell debris to prepare the bioscaffolds. However, it is important to confirm whether this technique does not have a detrimental effect on elastin and collagen…
Abstract X-ray absorption spectroscopy at the Cu K-edge is used to study X-ray induced photoreduction of copper oxide to metallic copper. Although no photoreduction has been observed in microcrystalline copper oxide, we have found that the photoreduction kinetics of nanocrystalline CuO depends on the crystallite size,…
Laboratory tests have been conducted to investigate the effects of thermal damage on diorite under microwave irradiation. The sample rocks were heated to high temperature range of 300 to 800 ℃ in a single-mode microwave furnace. The experimental results show that the rocks started to crack at 500 ℃ and completely disi…
Abstract The relationship of the micromagnetic structure, the contributions of various crystalline phases and hysterons obtained by the first order reversal curves (FORC) method in sintered (NdDy)(FeCo)B magnets is discussed. The distribution map of parameters of magnetic hysteresis partial loops that allows the separ…