Materials Literature
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In this work we explore an uncommon method to extract the piezoelectric coefficient of the piezoelectric material aluminum nitride. The method exploits the bias dependence of CV (capacitance voltage) measurements on MπM (metal-piezoelectric-metal) capacitors. We propose a bias dependent capacitance model for piezoelec…
The flow of viscous liquid in the porous medium formed by cylindrical fibers coated with a fractal porous adlayer is considered. Based on the Happel-Brenner cell method, the hydrodynamic permeability of a medium is calculated using the Brinkman equations. The analysis is performed for boundary conditions on cell surfa…
This paper includes weight optimization method of rotor and analysis of total power loss in radial magnetic bearing consisting of four, eight and twelve poles. Weight optimization reduces copper loss in bearing since the electromagnetic force is reduced due to optimized rotor. Further numbers of poles in magnetic bear…
The effect of the aging temperature, severe plastic deformation by equal-channel angular (ECA) pressing at 400°C, and subsequent aging on the rate of wear, friction coefficient, and microhardness of a commercial beryllium bronze Br.B2 quenched from 800°C has been investigated. The bronze structure before and after tri…
The n-type InSb films were prepared on Si(111) substrates with a two-step growth method via an InSb bilayer. This growth method consists of an initial low-temperature InSb layer growth and a subsequent high-temperature InSb layer growth. In order to obtain a heteroepitaxial InSb film with a high electron mobility, the…
In this report, the structural, morphological, and gas-sensing properties of nanostructured thin films made of interconnected zinc oxide (ZnO) nanowires were studied. This paper is the first demonstration of functional devices based on such nanowires. Interconnected nanowires were grown via a two-stage process using,…
The multi-component nanocatalysts based on platinum-transient metals alloys applied onto dispersed carbon material are considered as the most promising catalysts, which can be substituted for platinum in the fuel cell cathodes. The electrocatalytic activity of platinum in the PtM 1 /C and PtM 1 M 2 /C alloys increases…
TiO2−xFx spherical photocatalyst was obtained via microwave assisted hydrothermal synthesis technique using TiO2 microspheres as a precursor. By changing the concentration of sodium fluoride (NaF), TiO2−xFx microspheres having different sizes and morphologies could be achieved. The resulting powders were characterised…
Platinum(IV) coordination complexes like oxoplatin (cis,cis,trans-diammine-dichlorido-dihydroxido-platinum[IV]) show high stability and therefore can be utilized orally for outpatient care. Although oxoplatin is capable of binding directly to DNA after prolonged incubation, platinum(IV) agents are considered to be lar…
The paper provides a status report on the crystal production and quality control of a major part of the PbWO 4 crystals for the PANDA-EMC. The results confirm the excellent performance of the new generation of PWO-II. The mechanism of stimulated recovery provides an additional tool to recover radiation damage at room…
The mechanical properties and wear behavior of short carbon fiber reinforced copper matrix composites was studied. In order to avoid any interfacial pronlems in the carbon fibre reinforced composites, the carbon fibers were coated with copper. The fibers were coated by electroless coating method and then characterized…
Abstract Quenching is an essential part of the thermal process used for the manufacture of metallic parts. Quenching involves rapid cooling of a metal from an austenitizing temperature to a lower temperature; usually, but not necessarily, room temperature. The quenching process is typically accompanied by thermal and…
Fundamental studies on geopolymer are increased rapidly because of its potential commercial applications. However, little work has been done on the relationship of the interfacial transitional zone between geopolymer and aggregate and its influence on the final chemical and physical properties of geopolymeric products…
The functionalization of the anisotropic Ag(110) surface with a self-assembled silicon nanostripe grating prior to Co deposition has been studied in situ with scanning tunneling microscopy. At room temperature, Co atoms are adsorbed on top of the silicon nanostructures. As the diffusion rate of Co into the Si nanostri…
FePd-alloy epitaxial films were prepared on MgO substrates of (100)B1, (110)B1, and (111)B1 orientations at a temperature of 600 °C by ultrahigh vacuum rf magnetron sputtering. The structural and the magnetic properties vary depending on the substrate orientation. L10–FePd(001) films are obtained on MgO(100)B1 substra…
We describe a high-retardation polymer film (HRPF) that enables liquid crystal displays (LCDs) to be viewed through polarized sunglasses at all rotation angles without any chromaticity changes in the image. We investigated the relationship between retardation and polymer interference color after developing a program t…
A typical domestic wastewater treatment plant consists of a series of unit processes, each of which is designed with specific functions.Process trains will be more variable for industrial wastewater and for nutrient control.Conventional sewage treatment may involve these stages: ScreeningThe influent is strained to re…
ADAM19 (also named meltrin β) is a member of the ADAM (a disintegrin and metalloprotease) family of metalloproteases and is involved in morphogenesis and tissue formation during embryonic development. In the present study, chicken ADAM19 is cloned by reverse transcription-polymerase chain reaction and identified by se…
Atomistic Design of Guiding Principles for High Quality Metal–Oxide–Nitride–Oxide–Semiconductor Memories: First Principles Study of H and O Incorporation Effects for N Vacancies in SiN Charge Trap Layers, Yamguchi, Keita, Otake, Akira, Kamiya, Katsumasa, Shigeta, Yasuteru, Shiraishi, Kenji
Multi-layered zirconia (ZrO2 thin film on the Pt/Ti/SiO2/Si substrate has been prepared as humidity sensing material by sol–gel method. Annealing temperature was 450 C. A TiO2 thin film was added in between ZrO2 film and the substrate for improving the adhesion. The films were characterized by using X-ray diffraction…