Materials Literature
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The $\ensuremath{\gamma}\text{\ensuremath{-}}\ensuremath{\gamma}$ perturbed angular correlation technique (PAC) using $^{99}\text{R}\text{u}$ was applied to investigate the orbital ordering of $\text{Ru}\text{ }4d$ electrons in ${\text{Ca}}_{2}{\text{RuO}}_{4}$. It was confirmed that the ferro-orbital ordering charact…
Abstract In this article, a circuit model is proposed for the complementary split‐ring resonators (CSRRs) loaded transmission line, and comparisons between the results derived from the equivalent circuit model and the experimental results are given and a good agreement between them over a wide frequency band supports…
The effect of long-range correlated quenched structural defects on the critical ultrasound attenuation and sound velocity dispersion is studied for three-dimensional Ising-like systems. A field-theoretical description of the dynamic critical effects of ultrasound propagation in solids is performed with allowance for b…
Liquid crystal phases of molecules with no inherent handedness undergo subtle deformations that create unusual chiral fluids and nanostructures.
Abstract Mixtures of DGEBA with 4‐phenyl‐γ‐butyrolactone (PhBL) were cationically copolymerized in the presence of ytterbium triflate or triarylsulfonium hexafluoroantimoniate as thermal or photo initiator respectively. Changes during curing and final properties of the cured materials were studied by means of DSC, FT‐…
Abstract Ultrafine‐grained WC‐Co bulk materials were prepared by a new method that contains pretreatment of the milled powder mixture and subsequent spark plasma sintering (SPS). Ball milling parameters and the pretreatment temperature have significant effects on the microstructure and properties of WC‐Co cermets. The…
The aim of the present study was to evaluate the mucoadhesion and the release of nicotinamide gel formulations using in vitro methods. An agar plate technique was used to investigate the adhesiveness of the gels whereas a diffusion apparatus was employed to determine the release of nicotinamide from the gels. In this…
A Gram-positive, aerobic, motile, coccoid, orange-pigmented bacterium, designated strain YIM 91094(T), was isolated from a salt lake sample collected from Barkol Lake in Xinjiang Province, north-west China. The strain was able to grow at pH 6.0-8.0 (optimal growth at pH 7.0), at 10-37 degrees C (optimal growth at 28 d…
Recently published results determined from molecular dynamics (MD) modeling and simulation studies have shown that the spatial distribution of the density of immobilized charged ligands in ion-exchange porous adsorbent particles is most likely nonuniform and the adsorbent particles also exhibit local nonelectroneutral…
Near field light focusing by two-dimensional isosceles triangle shaped stack of silver plasmon-polaritons waveguides is being investigated numerically with full-vectorial Finite Difference Time Domain method for H-polarized light and wavelength lambda = 500 nm. For wide angle of tip, results are in good agreement with…
Abstract Magnetotomography, applied to fuel cells, gives rise to several questions: first, how well can the electric current density in the fuel cell be reconstructed by measuring its external magnetic field? It is quite clear that the connection between magnetic field and current alone will lead to ambiguous results.…
The use of reclaimed asphalt pavement (RAP) has proven to be economical and environmentally safe as being used extensively to produce new asphalt pavements. To examine the "black rock" problem of RAP material, a laboratory investigation was conducted in this study in which the blending process of simulated and actual…
Aktive Zentren wurden direkt durch einen elektrophilen Angriff an Strukturdefekten von Kohlenstoffnanoröhren eingeführt (siehe Bild). Dieses Syntheseverfahren ist schneller und effizienter als andere und kann Heterogenkatalysatoren liefern, die einstellbare aktive Zentren enthalten. Solche Katalysatoren auf der Basis…
In recent work, generalized gradient approximations (GGAs) have been constructed from the energy density of the Airy gas for exchange but not for correlation. We report the random-phase approximation (RPA) conventional correlation energy density of the Airy gas, the simplest edge electron gas, in which the auxiliary n…
Polymer density functional theory is used to test the accuracy of the Derjaguin approximation in describing the interaction between two spherical colloidal particles immersed in a polymer solution. The density functional equations are solved numerically in a cylindrical geometry and thus a rigorous comparison is affor…
The effect of anisotropy on the low-field electron spin resonance in the Kondo lattice compounds YbRh(2)Si(2) and YbIr(2)Si(2) is assessed. It is shown that the g-shift in YbRh(2)Si(2) is a consequence of the anisotropy in the Yb-Yb interactions as mirrored in the molecular field parameters characterizing the resonant…
Abstract The structures, stabilities, and electronic properties of the single‐vacancy‐defected fullerenes, C60 and C70, and the single‐ and double‐vacancy‐defected single‐walled carbon nanotubes (SWCNTs) were studied within density functional theory. The isomerization barriers for the single‐vacancy‐defected C60 on th…
Abstract In order to improve the oxidation resistance properties of 30 at.% Mo 5 Si 3 /MoSi 2 composite at high temperature in air, a molybdenum disilicide coating was prepared on its surface by a molten salt technology. XRD and SEM analysis showed that only tetragonal MoSi 2 phase existed in the coating after being s…
Abstract The inhibitory effect of phosphate on the crystal grain growth of nanosized titania during high temperature calcination was investigated. Nanosized titanium dioxide powders prepared by hydrolysis of titanium tetrachloride were soaked in phosphate solutions with different concentrations. The obtained powders c…
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” opt…