Materials Literature
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Application of organophosphorus compounds in biomedicine is attractive because the 31P nucleus is very amenable to study by nuclear magnetic resonance (NMR) techniques, particularly, by in vivo 31P magnetic resonance spectroscopy (31P-MRS). The water-soluble organophosphorus compounds that are non-toxic, exhibit metab…
The study presents the results of ion exchange equilibrium carbonate treatment to prevent brass corrosion in open recirculating cooling water system. The treatment process can remove the hardness and aggressive anions, transform all of the ions into sodium bicarbonate and sodium carbonate, and form the open carbonate…
A single-crystal chemical vapor deposition (CVD) diamond detector (DD) of a sandwich structure was used for the measurement of soft X-rays and ions emitted from plasmas obtained with the use the PALS laser system in Prague. The detector was fabricated in the Institute of Nuclear Physics PAN in Cracow with the use of d…
Epitaxial ZnO thin films were grown on r-plane sapphire substrates using plasma-assisted molecular-beam epitaxy. ZnO homobuffer layers grown at a lower temperature were introduced to improve the crystallinity of the top ZnO thin films. Thicker homobuffer layers lead to better crystallinity of the subsequent epitaxial…
A simple approach for field emission enhancement, based on the decoration of nanoparticles on the surface of nanostructures, is reported. To illustrate our working principle, we demonstrate that the field emission performance of ZnO nanorods can be greatly enhanced by decorating ZnO nanoparticles. It is found that the…
Although the thermal effects of cavitation are believed to be negligible for cavitation in water, they were successfully experimentally measured using infrared thermography. Cavitation was generated in a small container holding about 500 ml of water. It was oscillated with ultrasonic frequencies of 42 kHz to trigger g…
We predict and analyze radiation-induced quantum interference effect in low-dimensional $n\text{\ensuremath{-}}p$ junctions. This phenomenon manifests itself by large oscillations of the photocurrent as a function of the gate voltage or the frequency of the radiation. The oscillations result from the quantum interfere…
MoVing on up: AgMoVO6, a new crystalline catalyst for the gas-phase oxidation of o-xylene, with a remarkably high selectivity to value products, has been developed by high-throughput experimentation. Doping of the catalyst with elements such as P results in further enhancement of the catalytic properties.
Good partnership: A novel technique called complex-edited electron microscopy (CE-EM) combines bipartite tetracysteine display with EM and permits high-resolution imaging of discrete protein complexes (A and B in the picture). The strategy facilitates the direct and selective labeling of discrete protein complexes in…
The domain pinning fields of ferromagnetic Ga1−xMnxAs films were investigated using the planar Hall effect (PHE). Two in-plane components of GaMnAs films’ anisotropy fields (H4∥ and HU∥), which determine the direction of magnetic easy axes in the (001) plane, were obtained from the PHE’s angular dependence fitted with…
Pulsed laser deposition (PLD) and chemical vapour deposition (CVD) have been proven to be among the most successful techniques for growing the entire spectrum of carbon films, which can be used in a wide range of technical applications. Here an investigation has been performed to explore the effect of different growin…
The micropatterned poly(vinyl cinnamate) (PVCi) alignment layers are fabricated by a solvent-assisted micromolding method. Without UV irradiation, the alignment layer can induce the unidirectional liquid crystal (LC) orientation, which is influenced by topography-based anchoring energies. With photodimerization of PVC…
Quatre composés modèles norbornadiènes pentaméthylés (NBD) contenant des fonctions imide, bis-imide et diamides ont été synthétisés en première étape de ce travail avec de bons rendements et caractérisés par spectroscopie IR, RMN du proton et du carbone 13. Ces modèles ont été utilisés par la suite pour l’étude, par s…
The lattice structure of the InAs/Ga1−xInxSb interface has been studied in cross-section by high-resolution transmission electron microscopy. The atomic arrangement at the plane of the interface is analyzed based on the image characteristics. Possible bonding configurations are discussed. The results suggest that inte…
A fabrication technique is developed for the preparation of metal oxide/CNT composites. An essential feature of the technique lies in the use of nonaqueous electrolyte in place of the usual aqueous electrolyte, which ensures well-dispersed CNTs without surfactants. After a "seed" is formed by electroplating on the ano…
Pretilt angle and cell thickness are two extremely important parameters in predicting the behavior of vertically aligned negative nematic liquid crystal (LC) displays. The accurate estimation of pretilt angle and cell thickness is not a trivial task when these devices work in reflective mode, as in liquid crystal on s…
A 50-nm-thick Fe–Si–N films were deposited via reactive magnetron cosputtering of independent Fe and Si targets, in Ar/N2 gas mixture, under different dc Fe target power conditions. Magnetic properties, mechanical hardness and tribological properties were characterized as a function of the Fe target power by magnetome…
Multiscale modeling opens a new paradigm by providing a novel methodology of establishing molecular design criteria and potentially gives several orders of magnitude advances in nanotechnology. The head/disk interface (HDI) in the hard disk drive system investigated here can be used as a benchmark for multiscale model…
Li x Ag 1 − x ( Nb 0.5 Ta 0.5 ) O 3 (0≤x≤0.25) solid solutions have been fabricated by the mixed oxide method. Compositions with x≤0.15 were single phase perovskite by x-ray diffraction (XRD) and could be indexed using the end member, Ag(Nb0.5Ta0.5)O3 Pbcm cell, 2a,2a,4a (where a is the pseudocubic lattice parameter).…
Unfortunately, an incorrect version of figure 4 appeared in the above article. The correct figure is as follows: