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。
Optical absorption spectra of synthetic clinopyroxenes of NaVSi 2 O 6 , LiVSi 2 O 6 and CaVAlSiO 6 composition consist of a high-energy absorption edge and two broad absorption bands ν 1 and ν 2 at around 15,000 cm −1 and 22,000 cm −1 caused by spin-allowed electronic transitions 3 T 1 g ( 3 F ) → 3 T 2 g ( 3 F ) and…
Pulps were sampled from three major points of a deinking pulping line and classified as fibers fraction, fines fraction, and aqueous phase, respectively, then extracted with tetrahydrofuran (THF) or methyl tert-butyl ether (MTBE). Sticky contaminants in the extractives were examined by GC-MS analysis. The results show…
In this paper, we present a theoretical evaluation of ballistic electron transport in field-effect transistors (FETs) with semiconducting graphehe channels; bilayer graphenes (BLGs), monolayer graphene nanoribbons (MLGNRs), and bilayer graphene nanoribbons (BLGNRs). We found that the use of BLGNRs produces little adva…
A high-indium-content InGaN quantum-well structure was grown on a strain-relaxed InGaN template to reduce structural strain induced by lattice mismatch. The results show that the InGaN template, following a nanosculpting process, can maintain the good crystal quality of the underlying GaN layer and provide a new latti…
Ba(3)Fe(2.15)W(0.85)O(8.72) has been grown as large single crystals using the floating-zone method, permitting very precise characterization of the nuclear and magnetic structures by neutron and synchrotron diffraction methods. The results of our structural investigation are combined with dc and ac magnetization and h…
In this study, oxidative steam reforming of methanol (OSRM) over a Au/CeO2–Fe2O3 catalyst prepared by a depositionprecipitation (DP) method was studied to produce hydrogen in order to feed a Proton Exchange Membrane Fuel Cell (PEMFC). The support (CeO2, Fe2O3, and CeO2–Fe2O3) were prepared by precipitation and co-prec…
An important requirement in thick, high-porosity scaffolds is to maximise cellular penetration into the interior and avoid necrosis during culture in vitro. Hitherto, reproducible control of the pore structure in nonwoven scaffolds has proved challenging. A new, channelled scaffold manufacturing process is reported ba…
Y6UO12 was synthesized by solid-state reactions of Y2O3 and U3O8. The high-density pellet of Y6UO12 was prepared by the spark plasma sintering followed by heat treatment in air for oxygen supplementation. The thermal conductivity (κ) was evaluated using the laser flash method from room temperature to 1173 K. The κ of…
We study the formation and organization of micelles, of polystyrene- b -poly(2-vinylpyridine) (PS- b -P2VP) diblock copolymer chains, in thin film hosts composed of (1) blends of long and short chain polystyrenes, PS L and PS S, of degrees of polymerization P L and P S, respectively ( P S < P L ), and (2) blends of PS…
Resonant guided wave networks (RGWNs) are demonstrated to operate based on dielectric waveguides, broadening the scope of this optical design approach beyond plasmonics. The intersection of two dielectric waveguides that is modified by a tuned scattering particle is shown to function as an equal power splitting elemen…
Different Monte Carlo simulation approaches are used here to study the static structure induced by a spherical neutral substrate inserted in the midst of a two-dimensional suspension of paramagnetic particles. It is then observed that in some instances some of these particles are adsorbed to the surface of the substra…
To controllably construct ZnO ‐base heterostructures, unique ZnO hexagonal quasi‐hourglasses have been synthesized by a microwave‐assisted hydrothermal approach. The phase purity and the morphologies of as‐prepared samples have been determined by using X ‐ray powder diffractometer, field‐emission scanning electron mic…
The decomposition of formaldehyde (HCHO) and possible pathways for the formation of C 2 H 4 and CH 4 on clean and oxygen-predosed V(100) surfaces were studied by periodic density functional theory (DFT). It is shown that both C–H and C–O bond scissions of HCHO are thermodynamically and kinetically favorable on clean V…
The sorption and transport of four aromatic hydrocarbons through dynamically vulcanized high density polyethylene/ethylene propylene diene terpolymer rubber blends filled with carbon black and that filled with silica at the same loading have been investigated in the temperature range of 28–58 °C by an equilibrium swel…
In the paper are presented the results of thermodynamic analysis of Cu-Al-Zn ternary system, which belongs to a group of copper-based shape memory materials. General solution model was used for calculation of thermodynamic properties in the temperature interval from 1373 to 2173 K, in sections from Cu, Al and Zn corne…
Polymeric controlled delivery systems hold great promise in the field of modern medicine. Such technology has already been converted into commercially viable products in a myriad of fields. Chemotherapy is an example of such an area where constant efficacious levels of drug can greatly enhance clinical outcomes. The k…
The rational design of composite nanoparticles with desired optical and electronic properties requires the detailed analysis of surface and bulk contributions to the respective overall function. We use flame spray pyrolysis (FSP) to generate nanoparticles of the ternary Zn-Mg-O system the compositions of which range f…
A dual–band printed metamaterial coupler made of a microstrip line and a generalised negative-refractive-index (NRI) line is presented. Owing to the presence of two left-handed bands in the generalised negative-refractive-index transmission line (NRI-TL) unit cell, backward coupling occurs over two frequency ranges ce…
Nanotechnology has potential to revolutionize diagnosis and therapy of diseases in the central nervous system through nanotheranostics. This simply states that a nanocarrier can be designed in an 'all-in-one' approach to facilitate both the functions of a diagnostic and a therapeutic drug. There are many challenges th…
2, 3-butanedione dihydrazone (BDDH) synthesized via chemical route and nonlinear optical parameters, such as nonlinear refractive index (n2), nonlinear absorption coefficient (β), third-order nonlinear optical susceptibility (χ(3)), second hyperpolarizability (γ), and optical-limiting behavior were investigated by sin…