Materials Literature
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The alloy phase behavior of nanoparticle (NP) interfaces has been used to tailor asymmetric growth. Using either Au-Pd core-shell or Au-Au(x)Pd(1-x) core-alloy NP starting materials, the deposition of Ag resulted in asymmetric and symmetric growth respectively. The phase segregation of the interface was confirmed by T…
A high-voltage circuit breaker is an indispensable piece of equipment in the electric transmission and distribution systems. Transonic flow typically occurs inside breaking chamber during the current interruption, which determines the insulating characteristics of gas. Therefore, accurate compressible flow simulations…
A facile and green microwave route was developed to ultra-quickly synthesize magnetite colloidal nanocrystal clusters (MCNCs) by reducing iron(III) chloride with ethylene glycol within 10 min at 150 °C. The obtained uniform MCNCs exhibited excellent crystallinity, saturation magnetization and sustained aqueous stabili…
The aim of this study was to evaluate differences in bones quality between newly formed bone and cortical bone formed around titanium alloy implants by using X-ray photoelectron spectroscopy. As a result of narrow scan measurement at 4 weeks, the newly formed bone of C1s, P2p, O1s, and Ca2p were observed at a differen…
The thermal behaviors of oxygen-related complexes in boron doped Czochralski Silicon (Cz-Si) wafers at 450°C and 800°C were investigated using Fourier transform infrared spectroscopy (FTIR) and Hall mobility measurements. Activation of thermal donors (TDs) at 450°C leads to a decrease of both mobility and majority car…
TiB2-based cermets with various Co contents were fabricated from elemental powders “in situ” by means of the Self-propagating High-temperature Synthesis, SHS, and Pseudo- Hot Isostatic Pressing, P-HIP method. The sample pressed into a cylindrical compact was ignited in a steel can by an external heating element coilin…
A low-profile antenna with an array of dogbone-shaped elements is presented. The proposed structure is a surface wave antenna on which a 2-by-2 dogbone array is installed. As a result, main beams directed to the reverse each other are parallel to the longest part of the dogbone elements, and shows a narrow beam width.…
Loss-of-Coolant Accident (LOCA) in Boiling Water Reactor (BWR) especially on Fukushima Nuclear Accident will be discussed in this paper. The Tohoku earthquake triggered the shutdown of nuclear power reactors at Fukushima Nuclear Power station. Though shutdown process has been completely performed, cooling process, at…
Cefuroxime Axetil nanoemulsion was formulated to address the problem of poor oral bioavailability. Formulation was manufactured utilizing Capmul MCM, Soya lecithin, Deoxycholic acid, Pluronic F127 and distilled water. Mean globular size of 121.3 nm was obtained. Drug content of nanoemulsion was found to be 97.12±0.27%…
A part of the experimental program FUBILA was dedicated to the study of core physics characteristics of full MOX BWR cores by testing five experimental cores: a core inserted with a B4C control blade, a core loaded with UO2 fuel rods, the core loaded with Gd2O3-UO2 fuel rods, a core loaded with 10 × 10 MOX assemblies…
We report on nucleation and growth of CdSe thin films electrodeposited onto F:SnO 2 -coated glass (FTO) under weakly basic pH conditions. Chronoamperometry and electron microscopy reveal that nucleation sites grow three-dimensionally, coalesce, and form a dense film following the Volmer-Weber growth mechanism. Nucleat…
We investigated the rate constants and reaction mechanism of the gas phase reaction between the ethynyl radical and nitrous oxide (C(2)H + N(2)O) using both experimental methods and electronic structure calculations. A pulsed-laser photolysis/chemiluminescence technique was used to determine the absolute rate coeffici…
Ag-doped ZnO (ZnO:Ag) films are prepared on c-plane sapphire substrates by pulsed laser deposition at different substrate temperatures. The effect of substrate temperature on the ZnO:Ag film is studied in detail by EDX, XRD and Raman spectroscopy. The results reveal that raising the substrate temperature is beneficial…
The synthesis and in-depth characterisation including X-ray crystallography of a new hydroxy derivative of bis(2-pyridylcarbonyl)amine Hbpca, namely N-(3-hydroxypicolinoyl)picolinamide (Hbpca-OH), as well as two ferrocenyl derivatives of Hbpca-OH, namely 2-(picolinoylcarbamoyl)pyridin-3-yl ferrocenoate (HL1) and bis(2…
The results from microstructure and phase composition investigations of titanium in different structural states (with average grain sizes of 0.3 μm, 1.5 μm, and 17 μm) are presented following Al ion implantation using the Mevva-V.RU source (irradiating dose, 10 18 ion/cm 2 ). The implanted multiphase layers are found…
Abstract Ultrahigh molecular weight polyethylene (UHMWPE)/SiO2 hybrid hollow fiber membranes were prepared by thermally induced phase separation (TIPS) using mineral oil as the first diluent, polyethylene oxide (PEO) as the second diluent, and SiO2 as additive. The effect of PEO on the rheological behavior, FTIR‐ATR s…
The assessment of the structural integrity of steam generator (SG) tubes in nuclear power plants deserved increasing attention in the last years due to the negative impact related to their failures. In this context, elastic plastic fracture mechanics (EPFM) methodology appears as a potential tool for the analysis. The…
Superconducting properties of MgB2 wires with and without carbon doping up to 10 at.% have been investigated. Carbon particles consisted of 10 - 40 nm nano-tubes or 10 – 20 nm size SiC. Wires were made by “in-situ” technique. The regimes of ultrasound homogenization of the mixture of nano- and micro-particles were ela…
The idea of a new method for growing gallium nitride (GaN) epilayers on (100)-oriented silicon substrates is disclosed. It has been experimentally established that the formation of a special oriented thin (600 nm) buffer layer of aluminum nitride (AlN) by hydride-chloride vapor-phase epitaxy (HVPE) makes possible the…
The inverter is used as the power supply of modern permanent magnet synchronous motor (PMSM). The inverter may produce harmonics in inversion process and form harmonic currents in motor stator winding which can lead to factors against motor smooth operation such as torque fluctuating and winding heating. This article…