Materials Literature
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The process of commercial cement grinding in a helium atmosphere has been investigated in comparison with the process in an air atmosphere. Raw material particles have been sorted by sizes. Curves of helium release from the raw material after its grinding in air and in helium in the temperature range T = 20–1200°C hav…
A high precision selective harmonic compensation scheme for active power filters (APF), which was designed by using the basic theory of generalized predictive control (GPC), is proposed in this paper. A transfer function model -based GPC strategy is adopted. The strategy can compensate the delay in detecting the harmo…
The impact of junction formed by the electrode and bulk in phase change memory to conduction at the amorphous high resistance state is studied in this paper. Analytical model deduced from basic physical equation elucidates that the current changes from junction barrier limited to bulk barrier limited when the applied…
In the induction heating, in the calculation of the electric machines losses, in the mechanical engineering, in the calculation of the thermal field distribution, the equations of Maxwell and heat equation are required. Those utilize the magnetic permeability and the calorific capacity at constant volume which strongl…
The conducting polymers are vital sources for fabrication of micro electronics chips, GMR sensors, membranes and flexible electrodes. Polyaniline is widely chosen for such products because of its conductivity range. This paper focuses on the studies of dual phase properties of Polyaniline (PANI) - Magnetic Iron Oxide…
On page 4069, D. Penumadu and co-workers describe studies involving non-destructive 3D mapping of crystallographic phases in stainlesssteel samples. The background of the image shows a digitally altered neutron-radiograph of the phase transformed tensile and torsion samples. Photographs of the specimen and the reconst…
Zinc nitride films were deposited by ion sources-assisted magnetron sputtering with the use of Zn target (99.99% purity) on 7059 glass substrates. The films were characterized by XRD, SEM and EDS, the results of which show that the polycrystalline zinc nitride thin film can be grown on the glass substrates, the EDS sp…
Highly water-dissolvable Na2SO4 nanorods were prepared by introducing Ca2+ and NO3- as shape-control agents. The diameter of the as-synthesized nanorods was basically in the range of 20-40 nm, and the length was in the range of 500-800 nm. It was also found that Ca2+ can restrict the growth of the nanocrystals on a gi…
Exciton optical spectra are sensitive to even slight changes in the properties of a solid. The spectra of exciton polaritons can be especially informative, although the spectroscopy of these quasiparticles imposes certain restrictions on the measurement temperature and the quality of the material. Exciton parameters s…
In this paper, the most common neural network architecture called as the multilayer perceptron (MLP) Model is presented as convenient interface for obtaining and optimizing the phase characterization of the dual-layered Minkowski unit element. The high priority objective of Reflectarray antenna design is to get the re…
On the basis of experimental, production, and literature data, appropriate parameters for the theory of subregular ionic solutions are determined. Solubility surfaces for the components are plotted, for low-alloy and carbon steel and also for multicomponent alloys.
A mechanical model is proposed to estimate internal stress during sintering of ceramic multiphase laminates. A symmetrical multi-layered laminate is assumed, and one-dimensional elastic analysis is carried out on the change in stress of each layer during sintering, based on the differences in sintering strain, thermal…
Abstract A method for modulating the amplitude and the phase independently is proposed to realize the holographic display with reduced speckle noise by a phase‐only spatial light modulator (SLM) and a filtering architecture. The presented technique is applied to overcome the limitation of phase‐only SLM in the reconst…
The penetration of hydrogen through protective layers of aluminum oxide fixed on the surface of nanocrystalline (NC) titanium is studied. A film 400 nm thick is prepared by the magnetron sputtering. Radiation- and thermally-induced gas release are employed. It is found that the Al x O1−x film prevents the release of h…
In this work we synthesized the monodisperse of Zn1-xMnxS with x =0.00,0.02,0.04,0.06,0.08 and 0.10 nanoparticles by reverse micelle method using sodium bis (2-ethylhexyl) sulfosuccinate (AOT) as surfactant. The prepared particles were characterized using UV-Visible Spectroscopy, X-ray diffraction (XRD), Transmission…
This work aims to obtain hybrid from nanoparticles of Fe3O4 modified surface with 3-aminopropyltriethoxysilane (APTES) for their use in the immobilization of glucose oxidase (GOX). The obtained material was characterized by XRD, FTIR, SEM, sedimentation test and magnetic separation. Based on the obtained results it sh…
The influence of Cu2O addition on crystallization process and microstructure of the transparent mica glass-ceramics was investigated. Cu+ ions which were added as Cu2O were oxidized to Cu2+ ions during preparation of parent glasses and the Cu2+ ions were reduced to Cu+ ions again during heating of the parent glasses.…
By using the Abaqus software, FEM calculation of the quenching process of non-standard component which has complex contour has been operated, the temperature field distribution which accompanies the quenching time has been obtained. The simulation process’s precision and efficiency is excellent, this method is applica…
A simple model of the dielectric parameters of the metal-insulator composites is presented. The model is based on the Nielsen's equation. The resulting model allows predicting the properties of composite materials, such as metal-insulator transition in a wide frequency range. The results of numerical simulation are sh…
We investigated the effects of impact velocity on ejecta size when aluminum alloy 2017-T4 spheres with a diameter of 3.2 mm impacted aluminum alloy 6061-T6 targets with a thickness of 30 mm at velocities of 2 to 7 km/s. We used a two-stage light-gas gun at the Institute of Space and Astronautical Science (ISAS)/Japan…