Materials Literature
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The acoustic anomalies of the longitudinal acoustic mode of Ba1-xCaxTiO3 single crystals with x = 0, 0.12, and 0.20 were investigated in a wide temperature range of 290 similar to 873 K by using a Brillouin light scattering technique. The remarkable changes in the Brillouin frequency shift and the half width of this a…
The use of biocompatible materials in the formation of oriented fibers opens the possibility to obtain engineered tissues that can be used in medicine, environmental engineer, security and defense, among other applications. Pectin is a heteropolysaccharide that besides being biocompatible is biodegradable and bioactiv…
We report the conversion of Si layer in 40 nm SiC by 40 keV carbon (C) implantation into SiO2/Si structure. SiC layer is revealed to the sample surface after final SiO2 etching. Two distinct methods were carried out: a) by sequential C implantations followed by 1250°C annealing after each implantation step (under a fl…
以Fe 2 O 3 、BaCO 3 为原料, 采用熔盐法合成了BaFe 12 O 19 (BaM)六角铁氧体, 研究了煅烧温度、反应时间、熔盐添加量R及Fe 3+ /Ba 2+ 摩尔比对产物物相、显微结构及磁性能的影响. 结果表明, 熔盐合成BaM的反应温度低于 750℃, 中间产物为BaFe 2 O 4 及BaFe 4 O 7 . Fe 3+ /Ba 2+ 摩尔比在10~11.5可得BaM单相. 熔盐添加量R为1~3时, 所制BaM颗粒为规则六角片状. Fe 3+ /Ba 2+ 摩尔比为11.5, 煅烧温度为1000℃时制得的BaM的比饱和磁化强度为71.9A·m 2 /kg, 接近其理论值72A·m 2 /kg.
The electromagnetic developed torque of a conventional three-phase machine is compared with that of the same machine rearranged as an Active Stator machine, a new multiphase machine concept developed by Converteam UK Ltd. The comparison is made by using analytical methods and Finite Element solutions. Relations descri…
The high permittivity perovskite oxides have been intensively investigated for their possible application as dielectric materials for stacked capacitors in dynamic random access memory circuits. For the integration of such oxide materials into the CMOS world, a conductive diffusion barrier is indispensable. An optimiz…
The process of vertical alignment (VA) mode color filter liquid crystal on silicon (CF-LCoS) microdisplay was developed. In order to minimize the fringing field effect in small color pixels, a three dimensional (3D) optical model was established and performed to analyze this VA mode CF-LCoS microdisplay. The simulated…
Strongly non-Newtonian fluids namely, aqueous gels of starch, are shown to exhibit visco-elastic behavior, when subjected to a load. We study arrowroot and potato starch gels. When a droplet of the fluid is sandwiched between two glass plates and compressed, the area of contact between the fluid and plates increases i…
A very sharp wavelength response and significant electroluminescence and high internal quantum efficiency makes rare earth complexes promising materials to produce OLED devices with high performance. In this work a three layer device has been investigated to study the influence of the mass concentration of an europium…
During surveys of green algal diversity, we encountered a Codium species with carpet-like thalli from several sites on Jeju Island. To confirm the taxonomic identity of these specimens, we studied the morphological features and obtained rbcL gene sequences. The morphological and sequence data indicated that the carpet…
PURPOSE: To evaluate three methods to isolate rats MSCs and to analyze the potential of a castor oil polyurethane base membrane as a scaffold for MSCs. METHODS: Four male Wistar rats, aged 20-30 days were used. Bone marrow aspirates from femur and tibia were harvested using DMEM high glucose and heparin. The cell cult…
This paper presents the comparative evaluation of the performance of two control techniques to determine the reference current for a three phase shunt active power filter (APF) in order to improve the power quality and compensate reactive power required by nonlinear load. The first one is based on the use of classic P…
The oxidation of organic compounds with carbon-carbon double bond with using of molecular oxygen under atmospheric pressure in the presence of new polyaniline supported catalyst 1 and 2 has been studied. These catalysts turned out to be efficient and selective for oxidation of unsaturated organic compounds as well as…
We have studied hydrogen impurities and related structural properties in state-of-the-art wurtzite InN films with polar, nonpolar, and semipolar surface orientations. The effects of thermal annealing and chemical treatment on the incorporation and stability of H are also discussed. The near-surface and bulk hydrogen c…
This work deals with compensation algorithm schemes used in single-phase Unified Power Quality Conditioner (UPQC), allowing harmonic suppression and sag/swell compensation of the input voltage. In addition, reactive power compensation and harmonic suppression of the input current are also carried out, resulting in an…
Used as scaffolds to 3D cultures, biomaterials studied in tissue engineering can be derived from natural or synthetic sources and may belong to one of three classes: metals, ceramics, or polymers. Once transplanted, biomaterials can be reabsorbed in vivo and replaced by new tissue
Carbon nanomaterials, such as carbon nanotubes (CNTs), graphene sheets and so forth, have attracted much attention for not only scientific interest but also various application expectations. For example, various applications of CNTs, such as field emitter, transistor channel, and so forth, have been proposed, because…
Thermodynamic Study of Grinding-Induced Loratadine Inclusion Complex Formation Using Thermal Analysis and Curve-Fitted FTIR Determination
This chapter contains sections titled: The Gabbro-Eclogite Transformation Mineralogical Zoning and Stability Fields in the Outer Mantle The Transition Zone Summary
Abstract Phosphorus‐doped MgxZn1−xO thin films with various Mg content (0.07 ≤ x ≤ 0.28) and up to 0.7 at% P were grown on ZnO(000‐1) single crystals by pulsed laser deposition (PLD). In dependence on the dopant concentrations, tensile or compressively strained, in‐plane lattice matched, i.e., pseudomorphic growth of…