Materials Literature
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A simple, portable and costeffective method for the fabrication of ultrasensitive SERS substrates through “pen-on-paper” approach is presented by Luis M. Liz-Marzán and co-workers on page 3065. Arrays of SERS substrates are created on paper using a fountain pen filled with plasmonic ink made of gold nanospheres, silve…
The Kossel microdiffraction in a scanning electron microscope allows for local stress determination. This technique has been applied to monitor stress evolution within grains of austenite in the course of martensitic transformation in a shape memory alloy. Kossel diffraction patterns were recorded during in situ tensi…
A variable-temperature powder neutron diffraction study of serandite, Na(Mn,Ca) 2 Si 3 O 8 (OH), has been undertaken over the temperature range 4-800 K to investigate the behavior of the very strong hydrogen bond in this mineral. At 4 K the O(D)…O(A) distance in serandite has been determined to be extremely short at 2…
The inclusions modification, the morphology of microstructure, the mechanical property at room temperature and the mechanical property at high temperature of tin bearing stainless steel were studied under the experimental condition. The effect of tin on the microstructure of steel matrix and the composition evolution…
We performed ultra-high-speed tests for purely opening spot welds using plane tensile pulses. A gun system generated a parallel impact of a projectile plate onto a welded plate. Induced by the interactions of the release waves, the welded plate opened purely under the plane tensile pulses. We used the laser velocity i…
For almost 20 years, dielectric elastomer actuators (DEAs) have been the subject of intense research in material science. A large number of publications describe artificial muscles based on DEAs as a promising alternative for an energy efficient, lightweight and flexible actuation architecture. DEAs could improve and…
In order to improve the analysis accuracy of PMSM control performance, this paper improves the mathematical model considering the SVPWM modulation index and the actual integrated voltage loss. And it presents an analytic method of control performance based on the saturated parameters of PMSM. By compared with the expe…
Fluorescence lifetime imaging has been used to observe the real-time uptake in live mammalian cells of a combretastatin-type drug analogue that is a substituted stilbene with a cyano group at the bridging olefinic bond. Fluorescence spectra in a range of solvents show that this molecule has a substantial increase in d…
This paper presents an air supply system model with the exhaust gas recirculation (EGR) function. High potential is one of the key factors for degradation of proton exchange membrane fuel cell. The harmful high voltage always appears when the fuel cell works at small load. The output voltage is greatly affected by the…
The size dependence of melting temperature T m of metallic films (tin and copper) on different substrates, including amorphous carbon and another refractory metal (i.e., the dependence of T m on film thickness h) is investigated. It is found that the effect of the interfacial boundary can result in the growth of T m f…
By using first principles calculations, four two-dimensional B-C-N ternary sheets with ordered and uniform element distribution are predicted based on the C, B, or N filled g-C3N4 sheet. These B-C-N ternary sheets are metallic except for B4-C3N4 monolayer, which is a semiconductor with an energy band gap of 1.18 eV. I…
We investigated the effects of the active layers deposition temperature on the electrical performance of p-type tin-oxide thin-film transistors (TFTs). Negligible currents flowed between the source and the drain electrodes in the devices with tin-oxide thin films deposited at 60 °C and 220 °C, but devices with tin-oxi…
A method is developed for modifying the surface of current collectors in solid-oxide fuel cells (SOFC) prepared from ferrite stainless steel (Crofer22APU). Diffusion of the protective coating material into the Crofer22APU bulk and reverse diffusion of steel components into the coating are studied. The cross-sectional…
The molecular structure of 1-(5-bromothiophen-2-yl)-3-(4-nitrophenyl)prop-2-en-1-one with C13H8BrNO3S empirical formula was simulated using B3LYP and CAM-B3LYP levels of density functional theory. After BTNP was optimized on the ground state, its characterization was enhanced via IR, NMR and UV-vis spectroscopies. Con…
Two different morphologies of three‐dimensional (3D) hierarchical ZnO nanostructures with different building units (1D nanowires and 2D nanoplates) have been successfully synthesised through a simple hydrothermal synthetic approach, namely nanourchins and nanoflowers. Moreover, the comparative photocatalytic studies h…
In this paper we examine experimentally and numerically the effect of exposing a metamaterial to relatively high-power EM waves. We show that a metamaterial consisting of a conventional Split Ring Resonator on an FR4 substrate can undergo combustion when exposed to 1W of RF. We compare the experimental results to nume…
We present a simple method for direct detection of hydrogen sulfide (H 2 S) in an aqueous solution. This method represents a novel biosensor based on metalloprotein cytochrome c (cyt c) with the localized surface plasmon resonance of gold nanoparticles (AuNPs). For this purpose, we develop a new approach based on atta…
High-resolution synchrotron powder diffraction and Fe K -edge x-ray resonant scattering (RXS) have been combined to determine both the magnitude and sequence of the Fe charge segregation in LuFe 2 O 4 . Two phases with different charge disproportionation were found below the so-called charge ordering transition temper…
Raman spectra of crystals of the molecular fullerene C60 donor-acceptor complex {Hg(dedtc)2}2 · C60 (fullerene with mercury diethyldithiocarbamate) have been measured at a pressure up to 8.4 GPa and at room temperature. A phase transition has been revealed in the pressure range of 1.2–2.0 GPa, which is accompanied by…
New polycrystalline Bi-containing layered perovskite-like oxides having the Aurivillius phase (AP) structure with the general formula A 0.5Bi4.5 B 0.5Ti3.5O15 (A = Na, Ca, Sr, Pb; B = Cr, Co, Ni, Fe, Mn, Ga) have been synthesized. The unit cell parameters of the synthesized compounds have been determined by X-ray powd…