Materials Literature
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After discovery of the radioactivity by Becquerel, radiation started to be used in large elds and it became part of our life nowadays. Using radiation from industry to medicine brings its hazardous eect and radiation protection developed in physics in parallel with the utilization of radiation. Although time, distance…
As per IEC-60034-2-1, 2007, for a rotating electrical machine, the stray loss component increases with the decrease in the size of the machine. This causes a drastic reduction in the machine efficiency, especially in small a.c. motors. Using measures for reducing stray loss will greatly help in improving the efficienc…
Reticulated silicon carbide porous ceramics was fabricated through organic foam infiltration process by using silicon carbide slurry prepared from silicon carbide, alumina and clay and other raw materials. The effect of solid content on the viscosity and Zeta potential of the slurry were investigated. The results show…
The sizes of soluble polyelectrolyte complexes formed through mixing of solutions of dimethyl sulfate-alkylated rigid pyridine-containing polyphenylene dendrimers of various generations with the solution of sodium polystyrenesulfonate are measured with the use of dynamic light scattering. Effects of the length of the…
We present the results of experimental investigations of the characteristics of solid-state field-emission diodes, which were created for the first time using silicon/diamond heterostructures with nanostructured heteroboundaries.
This paper presents the design of a Film Bulk Acoustic Wave Resonators (FBARs) operating in Ku-band. The one-dimensional (1-D) numerical and the three-dimension (3-D) Finite Element Method (FEM) simulation results are analysed and compared. The results show that coupling coefficient (k2eff) up to 6.5% can be obtained…
This paper sets forth an experimental parameterization procedure for a novel qd equivalent circuit model of a wound-rotor induction generator. The model incorporates magnetic saturation of the main flux path, and high-frequency effects using standstill frequency response testing. Notably, the procedure also yields the…
In order to study the thermal stability of PPS (polyphenylene sulfide) filter media, by means of non- isothermal thermogravimetry, thermal degradation kinetics behavior of two kinds of PPS filter media were analyzed. The kinetic parameters of PPS filter media were obtained according to Friedman method. Thermal stabili…
High content carbon nanotubes mats have been produced to multi-walled carbon nanotubes. Sb doped SnO2 lms were then deposited by rf magnetron sputtering on buckypapers substrates. The eect of oxidation pressure on the structural, compositional, and electrochemical properties of the lms was investigated.
In the present work, the process of equal channel angular pressing of dispersion strengthened Cu–1·1 wt-Al2O3 containing nanometric alumina particles was investigated by means of mathematical modelling and experimental testing. Through the modelling, deformation parameters such as hydrostatic pressure distribution and…
In this study, chromium aluminum nitride coating was applied on pre-nitrided AISI D2 steel by the thermo--reactive deposition technique in a powder mixture consisting of ferrochromium, aluminum, ammonium chloride, and alumina at 1000 C for 2 h. Steels were gas nitrided for the purpose to enrich the surfaces with nitro…
Electrospinning is an inexpensive technology used for the large-scale production of continuous nanofiber materials. The development of Electro-Mechanical Spinning (EMS) technology by our team is based on electrospinning, but achieves greater deposition control at the single nanofiber level while maintaining the low co…
The ferromagnetic amorphous alloys Co-Fe-B-Si-Cr and Co-Fe-B-Si-Ta were systemically investigated. [(Co1−x Fe x )0.75B0.2Si0.05]96Cr4 (x = 0, 0.1, 0.4, 0.7, 1.0) and [(Co1−x Fe x )0.75B0.2Si0.05]96Ta4 (x = 0, 0.1, 0.3, 0.5, 1.0) ribbons were prepared by using the melt-spinning technique. Amorphous structures were conf…
Cells -from Fundamentals to Systems and the third year of paperless publication.This move from traditional printing has not discouraged author submissions, rather, we have seen a significant 22% increase in the number of
Attention focuses on how the basic hot-deformation parameters in thermomechanical treatment affect the structure formation of hot-deformed austenite, the microstructure, and the mechanical properties of low-carbon microalloy steels used for the manufacture of large-diameter gas pipelines. In rough rolling, small unifo…
The microstructure and properties of plasma arc welding (PAW) with depth penetration keyhole SAF 2205 duplex stainless steel were examined. High-quality, full-penetration welds were successfully produced in the duplex stainless steel by plasma arc welding (PAW) with depth penetration keyhole. The base material had a m…
Photocatalyst is an environmental clean-up material when exposed to light. It can decompose organic compounds, bacteria and fungi as well as foul odors. Titanium dioxide (TiO2) has long been well known for its powerful photocatalytic activity. However, its properties depend on several factors and synthesis method is o…
In this paper, a full integrated boost converter that allows energy extraction from low voltage thermoelectric generators. The converter uses a 22nH integrated metal-track inductor without external components and provide a 1.1V regulated output voltage from 300mV of input voltage and 45% of maximum efficiency in norma…
From the acidified solution of the Na 2 WO 4 -HNO 3 -Sr(NO 3 ) 2 -H 2 O system, the white crystals of sodiumstrontium paratungstate B Na 6 Sr 2 [W 12 O 40 (OH) 2 ]·24H 2 O ( I ) are isolated. By FTIR spectroscopy, the isopoly anion is shown to belong to the structural type of paratungstate B. Using single crystal X-ra…
Nowadays, bio-plastic is the most popular in packaging field. Green chemistry and environmental responsibility has led it to develop the bio-plastic for use as packaging. Polylactic acid (PLA) is the well known staring material in this area. However, some properties of PLA films have to develop. Polymer blend is the i…