Materials Literature
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The magnetic flux density of an induction machine is a combination of space harmonics due to the fundamental magneto motive force and slot harmonics due to slots in both rotor and stator. Accurate determination of effects of slot harmonics on air-gap magnetic field is essential for analytical modeling of an induction…
With the development of power grid, great progress have been achieved on the integrated design, smart device manufacturing, modular distribution construction of the new generation smart substation, which are revolutionarily innovative. This paper introduces design characteristics, construction goal and functions of th…
A nanoplatform of cancer-targeted nanocomposites is demonstrated by H. B. Chen and co-workers on page 3874 through the assembly of gadolinium oxide nanocrystals with a protein scaffold in conjugation with near-infrared cyanine dye, directed to trimodal near-infrared fluorescence/photoacoustics/magnetic-resonance imagi…
The dual phase nanosized (TiB2–Ti5Si3)/TiAl composites were successfully fabricated using in situ method of combustion synthesis and hot press consolidation. The effects of proportions of the in situ dual phase nanoparticles (TiB2 and Ti5Si3) on microstructures and compression properties of the composites were investi…
Plasmonic modulators and detectors are the building blocks of a new generation of ultra-fast and ultra-compact optical interconnects. In this paper we review some of the recent successes towards the realization of a plasmonic interconnect solution.
The grain refinement, gradient structure, fatigue limit, hardness, and tensile strength of metallic materials can be effectively enhanced by ultrasonic surface mechanical attrition treatment (SMAT), however, never before has SMAT been treated with rigorous analytical modelling such as the connection among the input en…
The spin-torque induced magnetization precession dynamics are studied in a spin-valve with a tilted spin polarizer. Macrospin simulations demonstrate that the frequency of precession state depends both on the external DC current and the intrinsic parameters of devices such as the tilted angle of spin polarizer, the da…
Neutron yield is enhanced by reduction of the short-circuit plasma focus inductance L0, which in turn increases the pinch current Ipinch. Numerical experiments are carried out to optimize the neutron production using the Lee model on small plasma focus devices (several kilojoules), such as UNU/ICTP PFF, NX2, and LDian…
An AlGaN/GaN metal–insulator–semiconductor high electron mobility transistor (MIS‐HEMT) on Si substrate was obtained with 18 nm silicon nitride (Si 3 N 4 ) grown by low‐pressure chemical vapour deposition (LPCVD) as the gate insulator. The D‐mode MIS‐HEMT shows a high I dss of 16.8 A at V g = 3 V, a high breakdown vol…
The stress-strain properties of composite films obtained from aqueous solutions of methylcellulose with arabinogalactan are studied. The structural organization and thermal stability are investigated via X-ray diffraction, dynamic mechanical analysis, differential scanning calorimetry, and thermogravimetric analysis.…
It is well known that a piece of gold is an excellent metal: it conducts heat and electricity, it is malleable to work out for jewellery or thin coatings, and it has the characteristic golden colour. How do these everyday properties – familiar from our macroscopic world – change when a nanometre-size chunk of gold con…
Properties of 1,2-bis-(4-[( E )-2-quinoline-2-vinyl)phenoxymethyl)benzene, a bis(styrylquinoline) dyad SoS, in which two styrylquinoline fragments (SQ) are linked by o -xylylene bridge, have been investigated. Photoisomerization of the SQ fragment in the bichromophoric dyad occurs as efficiently as in the monochromoph…
The optimum operating conditions for TiO2 photocatalytic degradation of tetracycline antibiotic (TC) in aqueous solution and the role of active oxidative species (AOS) from UV/TiO2 in its degradation were investigated. Response surface methodology (RSM) and central composite design (CCD) were adopted to optimize three…
A solution is presented for the problem of resonant elastic scattering of polarized light from a nanoparticle and a quantum well located near semiconductor surface. Coupling between surface plasmons of the metal particle and quasi-2D excitons of the quantum well is taken into account. The problem is solved by the Gree…
By surface modification of titanium foams, the bioactivity and bone bonding ability of the implants can be increased. The aim of the present research is to compare the effect of two different types of surface modifiers on the bioactivity of porous titanium implants. Two different types of surface modifiers (alkali and…
The o-iminobenzoquinone complexes of lanthanum, samarium, and ytterbium, Ln(L)3 (L = 3,5-ditert- butyl-1,2-quinone-1-(2-oxy-3,5-di-tert-butylphenyl)imine) are synthesized. In order to study the photovoltaic properties of the obtained complexes and previously synthesized similar complexes of zinc and aluminum M(L)2 pro…
The results of dilatometric studies of thermal coefficient of linear expansion of dysprosium in the temperature range 110-1950 K are presented. The measurements were performed with an accuracy of (1.5-2.0)·10 -7 K -1 . The approximation dependences of thermal coefficient of linear expansion were obtained. The referenc…
This study investigates X-ray intensity and dispersion around handheld X-ray fluorescence (XRF) instruments during the measurement of a range of sample matrices to establish radiation exposure risk during operation. Four handheld XRF instruments representing three manufacturers were used on four smooth, flat-lying mat…
Partial oxidation of methane to synthesis gas using a highly selective catalyst based on NdCaCoO 4 has been studied, and rate constants have been determined. To determine the kinetic constants in a thin bed of the catalyst with a mass of 0.1 g, a model of isothermal syngas production process has been implemented and o…
The quickly damped capillary waves generated at coalescence of microdroplets (diameter of up to 100 µm), formed in a gas atmosphere at water vapor condensation, with the horizontal layer of water are studied experimentally. Evaporation takes place at intensive local heating of liquid from the substrate side. To visual…