Materials Literature
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In retail-store settings, consumers are influenced by visual and tactile information while shopping for textiles and apparel products. In order to simulate some aspects of a real-world shopping context while recognizing the benefit of laboratory control and precision, textile chemists, physical scientists, social scie…
The cyclenphosphine selenide is prepared by reaction of molecular selenium on cyclenphos-phorane. Its physicochemical properties are compared to those of oxygen and sulfur analogues.
Abstract Blends of linear low‐density polyethylene (LLDPE) and linear low‐density polyethylene grafted maleic anhydride (LLDPE‐gMA) were prepared by melt mixing and then coextruded as external layers, with a central layer of polyamide (PA) on three‐layer coextruded flat films. Blends with contents of 0% to 55 wt% of m…
Ultrafine spherical particles of γ-Al2O3 containing 4 at% magnesium and pure γ-Al2O3 were prepared by evaporating metal Al in air. Consequently, both particles were heated at 1400°C for 6 h in a vacuum. TEM observations showed that the Mg-doped γ-Al2O3 particles were much more stable than the pure γ-Al2O3 particles. T…
Light-emitting porous silicon layers have successfully been obtained from hydrogenated amorphous silicon (a-Si:H), by anodic dissolution in hydrofluoric acid. The maximum thickness of the porous layers is limited by an instability due to the high resistivity of a-Si:H. The high luminescence efficiency is well accounte…
Magnesium alloys are well known to have high damping capacity. However, reports on damping characteristics of magnesium alloys, especially used practically, are very limited. In this study, the effects of alloy composition and heat treatment were investigated on the damping capacity of the hot-rolled and die-cast spec…
An original synthesis of substituted formyl selenophene heterocycles is described via selenoamide vinylogue from N-selenoacylamidines. The access of mono and bis-substituted 1,3-dithiol-2-ylidene selenophenes, potential π-conjugated precursors of selenafulvalene analogs, was achieved using Wittig olefination.
Irradiation effects of γ-rays on corrosion rates of type 304ULC stainless steel in 9×10−3 mol/m3 boiling nitric acid containing an ionic additive of multivalence elements of Ce(IV), Cr(VI) or Ru(III) were studied by measuring weight losses of specimens immersed under the 60Co γ-ray irradiation of 1 kC/(kg·h) (4MR/h).…
As steel cleanliness has been improved it has become ever more difficult to properly assess micro-inclusion contents and size distribution of harmful non-metallic inclusions in steel. The fact that inclusions do initiate fatigue failure is well known and easily proven in fatigue testing experiments. The problem addres…
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Magnesioferrite, a rare metasomatic mineral, was discovered for the first time in China from the Qinlou Au (Fe, Cu) magnesian skarn deposit, Sanpu, Huaibei, Auhui Province, and the Mulonggou Fe (Mo, Cu) magnesian skarn deposit, Luonan County, Shaanxi Province. In this paper, the geological setting, mineral association…
PM3 semiempirical calculations were carried out to study the frequency-dependent nonlinear optical properties of thiophene, furan, pyrrole, (1,2,4)-triazole, (1,3,4)-oxadiazole, and (1,3,4)-thiadiazole monomers and oligomers. The longitudinal component, αxx, is the largest of three principle components. On the other h…
Introduction Test set-up and test programme Surface Armouring of the fine core material Hydraulic stability of Accropode armour Influence of core permeability on Accropode stability Comparison with results from other researchers Run-up Prototype interpretation of model test results Comparison with core permeability in…
We have investigated the mechanical properties and hot workabilities of the newly developed TiB2-reinforced high modulus steel (HMS). considering the potential application to automobile parts.In two kinds of the HMS prepared via conventional powder metallurgical process, TiB2 particles of a few microns in diameter wer…
The quadrupole perturbed central transition of the magnetic ${}^{87}\mathrm{Rb}$ resonance was used to study ${\mathrm{Rb}}_{3}{\mathrm{D}(\mathrm{S}\mathrm{O}}_{4}{)}_{2}$ single crystals. Three resonance lines were found at room temperature. This result is in accord with the monoclinic space group reported for these…
Abstract
Four major cis-lutein isomers could be identified after thermal isomerization of all-trans-lutein in a benzene solution system; namely, 13'-, 13-, 9'- and 9-cis-luteins. Using both all-trans-lutein and a mixture of these purified cis-luteins as starting materials, the quantitative changes determined by HPLC response s…
The synthesis, characterization and crystal structure of 2,3-di(2-pyridyl)naphtho[2,3-f]quinoxaline-7,12-quinone (Aqdpp) are reported. Molecular orbital calculations have been carried out in order to characterize its reactivity and coordination properties. Surface maps for the electronegativity, hardness and Fukui fun…
The calculation of matrix elements involving nonorthogonal orbitals is speeded up by recognizing the orthogonalities between orbitals, leading to generalized Slater rules. The block structure present in the overlap matrix makes an efficient evaluation of its cofactors possible. These cofactors are calculated per subbl…
Frozen biological specimens in t-butyl alcohol were examined under a low-vacuum environment in a "wet SEM" or "variable pressure SEM (scanning electron microscope)" equipped with a cooling stage and highly sensitive backscattered detector of the YAG type. After fixation with glutaraldehyde and osmium tetroxide, rat ti…