Materials Literature
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The propagation of a metal plasma jet in a transport system with a curvilinear magnetic field was studied experimentally. The jet was generated by a pulsed vacuum arc discharge with a composite (W + Fe) cathode. Spatial separation of ions of the cathode material was observed at the exit from the system. The ions of th…
TiN(001)/MgO(001) interfaces have been investigated by using the total energy pseudopotential method. Their relaxed interface structures and electronic properties (charge densities, electronic band structures, density of states,etc.) were obtained. All the calculated electronic states of the TiN/MgO interfaces corresp…
Ferritic steels are widely used for designing water walls and low temperature super heaters of the boilers employed in thermal power plants. The investigations have been made to study about the weldability of SA 210 C tubular steel using Gas Tungsten Arc (GTA) and Shielded Metal Arc (SMA) welding techniques. In this s…
An approach based on finite-element (FE) simulations of the crack propagation process is used to determine fracture mechanical properties on sub-size specimens. The objective is to establish small size testing technology for the determination of fracture mechanical properties. The applicability of the evaluation proce…
An open-framework germanate SU-79 was synthesized using nickel complex and amine as the templates. The crystal structure was solved by the combination of rotation electron diffraction (RED) and synchrotron single crystal X-ray diffraction.
Bio-based hydroxyapatite nanoparticles were synthesised via the sonochemical route using phosphoric acid and bio-based calcium carbonate particles extracted from eggshells. Hydroxyapatite is a natural bio ceramic material that contains calcium phosphate group. In this procedure phosphoric acid solution was used as the…
A “DPH” ternary complex consisting of plasmid DNA (pDNA), intracellularly degradable polyethyleneimine, and hyaluronic acid (HA) was stabilized with Ca 2+ ions to prevent aggregation.
New heterocyclic quinoid donor molecules were designed and synthesized for application to organic solar cells in the near-infrared region. Devices using one of these quinoid molecules as a photoexcitable donor and C60 as an acceptor function in the visible and the near-infrared regions up to 890 nm.
A transformation electromagnetics-based approach is presented to facilitate the use of fixed Cartesian grids for modeling arbitrarily shaped (convex or nonconvex) curved boundaries in finite methods. The basic idea is to design transformation media adapted to the Cartesian grid by using the duality between the materia…
A theoretical study of poly furfuryle alcohol (PFA), rhodamine B (Rh B) dye and their blends (PFA-Rh B) is carried out by using the density functional theory (DFT). Electronic states and opto-electronic properties are investigated. The electronic states indicate that the oligomers of FA are insulators and Rh B is a wi…
Ti-Zr-Cu-Ni amorphous filler with good performance is suitable for joining TC and TB titanium alloy, but its melting temperature is higher than 882.5°C, the α→β phase transition temperature of TA2, which makes the ductility of TA2 fall and the microstructure of the joint coarse. In this paper, Ti-Zr-Cu-Ni amorphous fi…
In this paper we report the detection of explosive compounds using a miniaturized gas preconcentrator (μGP) made of porous silicon (PS) filled in with Carbopack B as an adsorbent material. The μGP includes also a platinum heater patterned at the backside and fluidic connectors sealed on the glass cover. Our μGP is des…
Micro-structural aspects of thermal cyclic performance at 600 °C and 700 °C of thermal barrier coatings systems on aluminium alloy 2024 have been reported. The extent of cracking was observed in the coatings surface with the increase of temperatures. Presence of cracks through-thickness of the specimens in the coating…
This paper presents corrosion and wear behavior of the plasma-nitrided 32CrMoV13 steel.
Testing methods for mechanical properties of structural materials at cryogenic temperatures had been developed rapidly after 1980, however, until 1985 many researches on cryogenic structural materials have been reported using their own methods and new materials have been developed for ITER. Since 1986, a series of int…
OBJECTIVE: To determine the safety and efficacy of long-term use of mizoribine by undertaking a 3-year post-marketing surveillance study. METHODS: Subjects were all lupus nephritis patients newly treated with mizoribine between 1 October 2003 and 30 September 2005 at contracted study sites. RESULTS: Mizoribine was adm…
For the properties of polymer are relative to its structure, the main purpose of the present work is to investigate the mechanical properties of the aeronautical PMMA which has been treated by the directional tensile technology. Isodyne images reveal the stress state in directional PMMA. And then, an anisotropic mecha…
ZnO nanoarchitecture-based nano- and microdevices came into the focus due to their multifunctional operation. In this work, we summarize cost-effective procedures to grow ZnO nano- and microstructures, namely hydrothermal growth and electrochemical deposition. These techniques allow the controllable growth of ZnO nano…
Highly dispersed and homogeneous titanium dioxide (TiO2) nanoparticles were synthesized by a solvothermal method with polymer gel. Polymer gel is essential for the highly dispersed and homogeneous nanoparticles. First, polyvinyl alcohol (PVA) was dissolved in water at 70°C and cooled to room temperature. Ammonium citr…
In this work, we demonstrate an improved 3-D distributed circuit model to analyze the luminescent coupling effects in multijunction concentrator solar cells. We implemented the 3-D distributed circuit model and compared the simulation results with experimental data measured on GaAs/GaInNAsSb solar cells. The results f…