Materials Literature
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The article presents the results of the analysis of the elemental and phase composition, defect substructures. It demonstrates strength and tribological characteristics of the aluminium-silicon alloy of the hypereutectic composition in the cast state and after irradiation with a high-intensity pulsed electron beam of…
A novel magnetic-assisted noncontact triboelectric nanogenerator (TENG) is proposed by J. H. Hao and co-workers on page 2744. By combining a magnetic-responsive layer, the TENG is remotely operated and controlled with noncontact mechanical motions that can be converted into electricity and light emissions. This work h…
Introduction Evidence on longitudinal associations between smoking and frailty is scarce. The objective of this study was to systematically review the literature on smoking as a predictor of frailty changes among community-dwelling middle-aged and older population. Methods A systematic search was performed using three…
Fibers and fibrous structures are used extensively in various fields due to their many advantages. Microfibers, as well as nanofibers, are considered to be some of the most valuable forms of advanced materials. Accordingly, various methods for fabricating microfibers have been developed. Electrospinning is a useful fa…
Abstract By micromagnetic simulation, we investigated the effect of the Dzyaloshinskii–Moriya interaction (DMI) on the static and dynamic characteristics of a 360° domain wall. Simulation results show that both the energy and the size of a 360° domain wall decrease with the increase of DMI intensity. In the presence o…
Electronic and emission properties of photocathodes fabricated on the basis of multilayered structures of oxidized Gd atoms deposited on the Si(100) surface and additionally covered with fresh layers of Gd atoms have been studied as functions of the structure holding time under vacuum, by using the methods of photoele…
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On page 2511, X.-F. Yu, P. K. Chu, and co-workers demonstrate the successful fabrication of millimeter-scale three-dimensional superlattice arrays consisting of dense, regular, and vertically aligned gold nanorods by the evaporative self-assembly method. The excellent performance in surface-enhanced Raman scattering i…
Electromigration is one of the main reliability failure mechanisms of interconnects in integrated circuits. Thereby, electromigration in copper interconnects can cause void nucleation and growth close to the cathode. The analysis of the resistance development in time, obtained by employing adapted structures for elect…
The magnetic properties of Co x (Cu0.5In0.5)1–x Cr2S4 (х = 0, 0.2, 0.5, 0.6) solid solutions between ferrimagnet СоCr2S4 (T C = 223 K) and antiferromagnet Cu0.5In0.5Cr2S4 (T N = 28 K) have been measured over wide ranges of fields (up 40 kOe) and temperatures (5–300 K). The major magnetometric data have been determined…
We introduce the concept of magnet-free nonreciprocal graphene components at terahertz (THz) frequencies based on spatiotemporal modulation of graphene conductivity. As an example, we design a fully planar, reconfigurable, plasmonic isolator using a graphene parallel-plate waveguide with time-varying gate voltages tha…
Calculation of turn-to-turn capacitance (Ctt) in electrical machines (EMs) with formed windings is presented in this paper for rectangular and round cross-section wire. Variation of Ctt with wire/coil properties in formed windings and deviation between analytical methods (AMs) and finite element method (FEM) have not…
Physical models of specific heat at constant volume and thermal conductivity of uranium dioxide are developed based on phonon spectrum data. It is explained an abnormal growth of thermal conductivity coefficient of oxide nuclear fuel in high temperature region. It is shown that the contribution from charge carrier's d…
The results of a change in the strength characteristics of carbon-fiber- and glass-fiber-reinforced plastics based on adhesive prepregs after in situ exposure under the extremely cold climatic conditions of Yakutia during five years are presented. It is shown that the results obtained make it possible to preliminarily…
A new ultra-low temperature experiment including a superconducting vector magnet has been developed for soft x-ray absorption spectroscopy experiments at third generation synchrotron light sources. The sample is cooled below 50 mK by a cryogen free (3)He-(4)He dilution refrigerator. At the same time, magnetic fields o…
As an environmentally-friendly p-type semiconductor, cuprous oxide (Cu 2 O) has exhibited potential applications, in particular sensors, solar cells, and Li-ion batteries. In this paper, uniform Cu 2 O nanocubes were large-scale fabricated through a solution-based chemical precipitation method. The assynthesized produ…
We investigated the excitation power P dependence of photoluminescence (PL) spectra of GaSb type-II quantum dots (QDs) in GaAs grown by droplet epitaxy. We prepared two QD samples annealed at slightly different temperatures (380 oC and 400 oC) and carried out PL measurements. The 20 oC increase of the annealing temper…
Bioinspired surfaces with superwettability have attracted great interest in both fundamental research and industry applications. Recent progress in superhydrophobic TiO2-based surfaces with high contrast in solid/liquid adhesion is reviewed on page 2203 by Y. K. Lai, L. F. Chi and co-workers. In addition, the signific…
We report a simple and environmentally friendly approach to the synthesis of Au-SiC2 composite nanospheres. Our method presents a route for the decoration of preformed amine functionalized SiO2 nanospheres by in situ formation of Au nanoparticles at three different concentrations of Au precursor (HAuCl4). Herein, the…
The efficacy of superparamagnetic iron oxide nanoparticles (SPIONs) for biomedical applications depends on the magnetic properties, long time stability in biological fluids, and specific targeting capacity. The properties of SPIONs were generally improved by surface modification, but common modification technologies w…