Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The prehydration of industrial cements (CEM I 52·5 R and API Oilwell Class G) and pure cement clinker minerals (C3S, cubic C3A, orthorhombic C3A, C4AF) has been studied at 60 and 85% relative humidity using in situ X-ray diffraction (XRD), calorimetry, environmental scanning electron microscopy and X-ray photoelectron…
Riboflavin synthase catalyzes the transfer of a four-carbon fragment between two molecules of the substrate, 6,7-dimethyl-8-ribityllumazine, resulting in the formation of riboflavin and 5-amino-6-ribitylamino-2,4(1H,3H)-pyrimidinedione. Earlier, a pentacyclic adduct formed from two substrate molecules was shown to be…
Very recently, the superhard properties of rhenium and ruthenium boride films were reported, this research being inspired by the discovery of the ReB(2) bulk superhardness. In this paper, we report the first successful deposition and characterization of rhodium and iridium boride films, other possible candidates for s…
PURPOSE: Energy-resolved CT has the potential to improve the contrast-to-noise ratio (CNR) through optimal weighting of photons detected in energy bins. In general, optimal weighting gives higher weight to the lower energy photons that contain the most contrast information. However, low-energy photons are generally mo…
We developed a method to immobilize Pd/Au bimetallic nanoparticles (NPs) on highly cross-linked polymer microspheres. In this route, the cross-linker divinylbenzene and ionic liquid (IL) 1-vinyl-3-butyl imidazolium chloride ([VBIM]Cl) were first copolymerized in ethanol to prepare the cross-linked polymer microspheres…
Photoluminescence (PL) properties of tin oxide (SnO 2 ) nanowires are studied in detail using high spectral resolution spectroscopy in a temperature range of 10−300 K. The nanowires have an average diameter of 86 nm. The high quality of the nanowires enables the observation of rich fine structures in the ultraviolet P…
We present a mode-locked diamond Raman laser synchronously pumped by a mode-locked laser running at 532 nm and pulse duration 26 ps. The diamond laser generated up to 2.2 W of average power with output pulses of duration 21 ps at a yellow wavelength of 573 nm. The output pulse duration varied notably with small change…
Abstract Over the last few years the impact of products from natural sources in food, nutraceuticals, cosmetics, flavors/fragrances, and also the pharmaceutical industry has increased due to the consumer demand for nature‐derived products. Meeting this demand requires that existing manufacturing processes have to be o…
Abstract To improve the safety of HMX without sacrificing energy properties, the composites of TNT and an energetic material (HP‐1) were used to coat HMX particles by a method of integrating solvent–nonsolvent with aqueous suspension‐melting. SEM (scanning electron microscopy) and XPS (X‐ray photoelectron spectrometry…
A Schottky contact detector comprising a symmetric metal stripe buried in Si, capable of detecting surface plasmons at wavelengths below the bandgap of Si, is described. A model for the detector is proposed, and its performance is assessed at lambda(0)=1550 nm assuming a CoSi(2) stripe in p-type Si. End-fire coupled r…
The main mechanisms of creep damage of single-crystal nickel-base superalloys are the loss of the interface coherency, coarsening of the γ/γ'-microstructure, precipitation of topologically closed packed phases and growth of porosity. This degradation deteriorates the mechanical properties such as yield stress, creep l…
Abstract Glycerol has proved to be an effective promoting medium for many multicomponent reactions of 1,3‐cyclohexanediones and formaldehyde. Styrenes, amines, 2‐naphthol, 4‐hydroxy‐6‐methyl‐2‐pyrone and 4‐hydroxy‐1‐methyl‐2‐quinolone could easily react with 1,3‐cyclohexanediones and paraformaldehyde in glycerol under…
This paper presents a novel model aimed at describing the basic phenomena that cause the fragmentation of a single Au nanoparticle (AuNP) by interaction with the second and the third harmonics of a Nd:YAG picosecond laser. In order to verify the model through a comparison with experimental results, we extended the sin…
Abstract The field‐effect transistor (FET) and diode characteristics of poly(3‐alkylthiophene) (P3AT) nanofiber layers deposited from nanofiber dispersions are presented and compared with those of layers deposited from molecularly dissolved polymer solutions in chlorobenzene. The P3AT n‐alkyl‐side‐chain length was var…
Ultra short (ps, fs) laser pulses are used, when high requirements concerning accuracy, surface roughness, heat affected zone etc. are demanded for surface structuring. Ps-laser systems that are suited to be operated in industrial environments are of great interest for many practical applications. Here results in the…
Manganese-doped ZnO dielectric films sandwiched between Cu and Pt electrodes were prepared and investigated for nonvolatile resistive memory applications. These structures exhibit promising bipolar resistive switching (RS) behavior with a large ON/OFF ratio (∼10 3 ), suitable threshold voltages (1.4 and −0.7 V for SET…
In this Letter we present the equations to calculate the six independent polarization effects of an arbitrary normalized Mueller-Jones matrix corresponding to homogenous media. A comparison between this method and other inversion procedures is discussed, and the application of the analytic inversion to experimental Mu…
This work is devoted to the development of hybrid bulk heterojunction solar cells based on porous zinc oxide (ZnO) electrodes and poly(3-hexylthiophene) (P3HT), using simple synthesis procedures and deposition techniques. Starting from ZnO nanocrystals with well-controlled properties, porous ZnO electrodes of suitable…
A hexagonal nanostructure formed by seven core shell nanocylinders filled with different dielectric cores is investigated. The surface plasmon resonance in such a hexagonal nanostructure under conditions of different illumination wavelengths, dielectric cores, angles of incidence, and thicknesses of silver shells is s…
A simple analytical model that allows designing one-dimensional photonic crystal based dye sensitized solar cells of optimized performance, accounting for the actual optical features of the device, is herein presented. Based on the theoretical description of the effect of coupling such Bragg mirrors to the light harve…