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 high‐temperature oxidation of a silicon nitride‐titanium nitride (Si 3 N 4 –TiN) composite has been investigated via scanning electron microscopy and energy‐dispersive and wavelength‐dispersive spectrometry. At 1150°C, the oxidation of both the silicon nitride and titanium nitride phases takes place. Several oxida…
In a previous study, we showed that there was a significant increase in mycolata numbers associated with foaming events at a wastewater treatment site possessing three activated sludge plants. In this paper, we demonstrate that branched filamentous mycolata were a minor proportion of the mycolata morphotypes present i…
ZnCdSeTe/ZnMgSeTe quasi-quaternary light-emitting devices emitting in the green–yellow wavelength region grown on ZnTe substrates are promising for efficient green light emitters. To solve the n-type conductivity problem in ZnTe-related materials, Cl-doped ZnMgSeTe quasi-quaternary layers which consisted of very thin…
Partially methacrylated pullulan was crosslinked by means of conventional and “living” radical polymerisations using, in the latter case, the reversible addition–fragmentation chain-transfer technique (RAFT). Several hydrogels were synthesised using methacrylated pullulan samples with different degrees of substitution…
Effects of N 2 sintering atmosphere and the starting SiC powder on the microstructural evolution of liquid‐phase‐sintered (LPS) SiC were studied. It was found that, for the β‐SiC starting powder case, there was complete suppression of the β→α phase transformation, which otherwise goes to completion in Ar atmosphere. I…
Comparative mechanical tests of an Al-Cu-Fe quasicrystal and a tungsten (001) single crystal have been carried out using cyclic nanoindentation by a Berkovich indenter. The first loading-unloading cycle up to 30 mN formed the initial indent. On reloading of the indenter up to 50 mN, a transition from elastic to plasti…
Epilithic diatom assemblages were used to evaluate water quality in the Karasu River basin (Turkey), which was polluted by industrial, agricultural and urban wastes. A total of 73 diatom taxa belonging to 22 genera were found from all seven sampling stations located in the River basin. The most pollution tolerant spec…
We have performed a photoemission study of La 1 − x Sr x TiO 3 + y /2 near the filling-control metal-insulator transition (MIT) as a function of hole doping. The spectral intensity at the chemical potential (μ) and the mass enhancement factor deduced from the bandwidth show qualitatively the same doping dependence as…
We evaluated the extent (luminal coverage) of the endothelial cell (EC) lining/neointimal development and the thromboresistance of electrostatically EC seeded small diameter ChronoFlex-polyurethane vascular grafts. The evaluation consisted of harvesting autologous, canine jugular vein ECs, electrostatically seeding th…
Uniquely structured two-dimensional aluminum–silicon alloy nanowire networks are fabricated on glass and silicon substrates by dealloying an aluminum–silicon thin film through selective chemical etching. The nanowire network is comprised of 3–6 nm diameter wires with lengths of 50–200 nm, and a wire density of approxi…
High‐strain‐rate superplasticity is attained in a 3‐mol%‐Y 2 O 3 ‐stabilized tetragonal ZrO 2 polycrystal (3Y‐TZP) dispersed with 30 vol% MgAl 2 O 4 spinel: tensile elongation at 1823 K reached >300% at strain rates of 1.7 × 10 −2 – 3.3 × 10 −1 s −1 . The flow behavior and the microstructure of this material indica…
Photo-control of protein conformation could prove useful for probing function in diverse biological systems. Recently, we reported photo-switching of helix content in a short peptide containing an azobenzene cross-linker between cysteine residues at positions i and i + 7 in the sequence. In the original sequence, unde…
The action of transverse shock waves (the shock wave propagates across the magnetization vector M) on the magnetic phase state of a Nd2Fe14B high-energy hard ferromagnetic was investigated experimentally. The design of the ferromagnetic sample, which was made as a hollow cylinder, has made it possible to dramatically…
The crystal structures of two thermally stabilized subtilisin BPN' variants, S63 and S88, are reported here at 1.8 and 1.9 A resolution, respectively. The micromolar affinity calcium binding site (site A) has been deleted (Delta75-83) in these variants, enabling the activity and thermostability measurements in chelati…
The relation between absorption and emission spectra in a rare-earth doped solid is explored analytically and through numerical simulations on a model system. It is found that the widely used theory of McCumber [D. E. McCumber, Phys. Rev. 136, A954 (1964)] is strictly valid only when the linewidth of each individual t…
Optical scatterometry has attracted a great deal of interest for linewidth measurement due to its high repeatability and capability of measuring sidewall shape. We have developed an analogous and complementary technique for the scanning electron microscope. The new method, like scatterometry, measures shape parameters…
Prediction of gel point conversion and network formation is of great importance in polycondensation during synthesis as well as processing. It enables one to estimate the safe conversions for reactor operation without gelation, the cycle time during processing and plays an important role in controlling the moulding pa…
To meet the emerging near-term and long-term packaging challenges, the electronics industry must begin to increase spending on packaging research and technology development. In the short-term the industry shift to manufacturing outsourcing (combined with decreased profitability in many electronics sectors) has driven…
The adsorption and covalent coupling of bovine serum albumin (BSA) onto methylmethacrylate (MMA) based monodisperse latex particles with different hydrophylic surfaces were investigated. P(MMA) and P(MMA/HEMA) microbeads in the size range of 1.5–2.0 mm were prepared by a dispersion homopolymerization method in the pre…
The quasi‐crystals of hexadecyltrimethylammonium (CTA + )‐montmorillonite formed in suspension were investigated by small‐angle x‐ray scattering (SAXS). The d ‐spacing of the quasi‐crystals increased from 17.1 to 21.7 Å, corresponding to an increasing surfactant loading from 20 to 250% of the clay's cation exchange ca…