Materials Literature
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Dual-channel thermal plasma torches can operate with air, argon, or combustible gases to produce high temperature plasma flows. This plasma torch can be used in various important applications such as metal industry recycling, surface coating and hardening, space operations using controlled thrust, and macroparticle ac…
Samples of CayFe12-yO19 (0 ≤ y ≤ 1.0) were prepared by a proteic sol–gel process with hematite phase and clusters of M-type calcium hexaferrite. Impedance analysis showed that the resistivity increased with calcium concentration in the 0.0 < y ≤ 0.2 range, but decreased for y > 0.2. The saturation of the electrical re…
Active carbon and sodium silicate were produced simultaneously from pyrolyzed rice husk (PRH) by CO2 activation coupled with NaOH solution boiling. Doehlert matrix and Derringer's desirability function were applied to optimizing the boiling conditions to achieve a large specific surface area, a high silica extraction…
The different mixing ratios of TiO2 nanoparticles were synthesized using sol–gel process by changing the temperature of calcinations. The crystal structures were characterized by X-ray diffraction (XRD). The photocatalytic action of TiO2 nanoparticles was investigated through the photooxidation of Rhodamine B in aqueo…
PbTe nanopowders were synthesised by a gas induced reduction (GIR) method using Pb(NO3)2 and TeO2 as raw materials and hydrazine as reductant at different temperatures. The nanopowders were characterised by X-ray diffraction (XRD) and field emission scanning electron microscope (FESEM) equipped with energy dispersive…
This paper is about how to design an improved anti-ribboning method for the winder system. The system is based on the principle of a brushless DC motor control, which constantly changes relative velocity between the grooved drum and the yarn bobbin. This in turn, causes the changing of the winding ratio value. Therefo…
Corrosion is a serious global problem, affecting our daily lives and causing million dollar lost in industry annually. Chemical reaction occurs when metal surface comes in contact with oxygen in air, resulting metals being oxidized and corroded. Various methods have been employed by the industries to protect metal fro…
Novel electrical and optical properties of two dimensional (2D) semiconductors highlight their potential applications in optoelectronic devices. Here we report on our experimental investigation into the charge transport and exciton dynamics in some semiconducting 2D crystals such as MoS2and WSe2.
Mitsubishi Chemical Corporation is developing a new concept coating type organic photovoltaics. The lecture will present OPV characteristics and milestones for future performance advancements and applications for market as new generation photovoltaics.
We report charge transport studies at temperatures in the range of 303–402 K for solutiondeposited amorphous zinc-tin-oxide (a-ZTO) thin-film transistors (TFTs) operating in the subthreshold region. The developed TFTs, which had a non-patterned bottom gate and top contact structure, employed a heavily-doped Si wafer a…
In this study we have developed a near Ultra Violet (NUV) source by using discharge of Ar + N2gas mixture with employ of DC power source. The cathode materials play vital role in efficiency and lifetime of UV sources, which are attained from micro-discharges of various gas compositions. In the present study, micro dis…
Graphene possesses many fascinating properties originating from the manifold potential for interactions at electronic, atomic, or molecular levels. Being a two-dimensional atomic crystal, graphene is transmissive to impinging electrons while being impermeable to atoms and molecules. Harboring a 2D electron system, gra…
This paper proposed an easier but effective method to realize a tunable 2.4GHz lumped phase shifter employing varactor diode. This method is a revised type of lumped composite right/left handed transmission line(CLRH TL). A practical design using this method was then presented and averred by numeric simulation. The de…
Corrosion of steel reinforcement is a major factor in the deterioration of harbor and bridge structure. Steel corrosion in concrete must be checked for investigating the condition of a reinforced concrete structure. The several way how to measuring corrosion condition of reinforced concrete, but the corrosion potentia…
Abstract The paper is focused on the study of two-dimensional magnetic field distribution used for an analysis of samples containing magnetically active films by means of the Attenuated Total Reflection (ATR) method. The design of a proposed electromagnet and the magnetic field model computation are presented together…
Thermal barrier coatings(TBCs) are being applied in many industrial fields such as thermal power generation, aviation and seasonal fields. $ZrO_2-Y_2O_3$ (8%) thermal spray coating powders are commercially used as thermal-barrier coating materials to protect against oxidation and corrosion of heat-resistant alloys at…
An important aspect of the theory of optimal design of shells is a question technology of determination of optimal forms of shells with numerical methods, based on the variation definitions. The distribution of effort in sloping shell of revolution optimal form, uniformly loaded with despens intensity is analyzed. The…
M10, M15, M50 methanol gasoline and 93 # gasoline engine emission performance test were researched on the engine GW491QE. Always stayed in 60 N·m torque and rotational speed increased from 1000 r/min to 3000 r/min, recorded the corresponding data, performance, emission performance curve was drawn respectively, compari…
The gas pressure of SF6circuit breaker working in power system is a critical real-time monitoring parameter. In this paper, bicubic interpolation, Otsu, morphological filtering and Goertzel algorithm are studied on FPGA. In particular, the method HVPL is proposed. Segmentation, extraction and number identification are…
This conference poster present an alternative derivation of a well known formula that relates both to the concept of reduced brightness in a charge-particle (CP) beam and to the blurring of field-ion image spots. It is then argued that field ion images provide a practical illustration of some aspects of CP optics, inc…