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。
Abstract The fracture behavior of unirradiated Zircaloy-4 containing either solid hydride blisters or hydrided rims has been examined for the contrasting conditions of equal-biaxial and plane-strain tensile deformation at three temperatures (25°, 300°, and 375°C). Cold-worked and stress-relieved Zircaloy-4 sheet conta…
The purpose of this study was to prepare protein-coated potato chips and evaluate type of proteins and storage time on the quality of final product. Potato slices were prepared, blanched, immersed in solutions of sodium caseinate, whey proteins concentrate (WPC), or egg white and deep-fried in a mixture of corn oil an…
Carbon nanotubes are observed to form under a wide range of temperatures, pressures, reactive agents, and catalyst metals. In this paper we attempt to rationalize this body of observations reported in the literature in terms of fundamental processes driving nanotube formation. Many of the observed effects can be attri…
Abstract The effect of β-quenching performed in the final size of Zircaloy-4 guide tubes and Zircaloy-2 sheets during fabrication process on the products' mechanical properties, crystallographic texture, microstructure, and corrosion behavior has been investigated and presented in this paper. Moreover, the impact of t…
Abstract By exploiting the attenuated total reflection (ATR)–Otto configuration, surface‐enhanced Raman scattering of water at monocrystalline copper and silver electrodes in 0.1 M Na 2 SO 4 was observed at cathodic electrode potentials with hydrogen evolution at a laser wavelength of 647.1 nm. The proposed enhancemen…
The EPR parameters (g factors g || , g ⊥ and hyperfine structure constants A || , A ⊥ ) of V 4+ ion in the tetragonal phase of SrTiO 3 crystal were studied by high-order perturbation formulas based on a two-spin-orbit-parameter model, where the contributions from the spin-orbit-coupling-parameter of central 3d n ion a…
Macroporous and luminescent nanoporous Si are formed on Si wafers, which are modified with fine metal particles, by simply immersing the wafers in a HF solution without a bias or an oxidizing agent. The metal particles are deposited onto n-Si wafers by electroless displacement deposition from a metal salt solution inc…
Materials. PHB (M w = 450,000 g/mol, melting point ~176 C) was kindly supplied by PHB do Brasil. PCL (M n = 80,000 g/mol, melting point ~60 o C) was purchased from Aldrich. Both polymers were used without further purification.
In this paper, we describe the characteristics of Al-doped n -type Zn 1- x Mg x O alloy films grown on a -plane sapphire substrates by molecular beam epitaxy, and the application of the films in modulation-doped ZnO/Zn 1- x Mg x O quantum wells (QWs). The results of Hall measurement for the Al-doped Zn 0.8 Mg 0.2 O al…
Genome sequencing showed that two proteins in Mycobacterium tuberculosis H37Rv contain the metal binding motif (D/E)X(2)HX(approximately 100)(D/E)X(2)H characteristic of the soluble diiron enzyme superfamily. These putative acyl-ACP desaturase genes desA1 and desA2 were cloned from genomic DNA and expressed in Escheri…
The objective of this study is to evaluate the influence of saline solution (0.9 per cent NaCl) on the tensile properties of freeze-stored tendons. Firstly, 170 pieces of chicken flexor digitorum profundus tendons were retrieved and wrapped in saline-soaked gauze before they were stored at -40degreesC. Then specimens…
Nanocapsules were synthesized using the droplets of an oil-in-water microemulsion as a template. Ethyl butyrate was solubilized in normal saline using Tween-80, lecithin, and n -octadecyltrimethoxysilane as surfactants. A polysiloxane/silicate shell was formed at the surface of the mixed surfactant layer by cross-link…
SUMMARY Morphological studies at the light microscopy and scanning electron microscopy levels of selected fragilarioid diatoms occurring in North American streams and lakes are presented herein. The majority of the samples studied were collected by the US Geological Survey's National Water Quality Assessment Program,…
In the last decade, carbon nanotubes (CNT) have attracted the attention of several scientists, due to their unique and intriguing structure and properties. This is because it is possible to modify them, through several procedures, with a wide variety of molecules. The present report is focused on the potential applica…
Abstract Exfoliated and intercalated polyurethane (PU) nanocomposites were prepared by in situ polymerization of polyol/organoclay mixture, chain extender and diisocyanate. Wide‐angle X‐ray diffraction and transmission electron microscopy confirmed an exfoliated structure for clay C30B and an intercalated structure fo…
The High-Z material tungsten (W) has been considered as a plasma facing material in the divertor region of ITER (International Thermonuclear Experimental Reactor). In ITER, the divertor is expected to operate under high particle fluxes (>10 23 m -2 s -1 ) from the plasma as well as from intrinsic impurities with a ver…
The effect of rubber content of poly (acrylonitrile butadiene styrene) (ABS) on compatibility and properties of polycarbonate (PC)/ABS blend systems has been investigated. The rheological, mechanical, physical, and thermal properties of PC/ABS blend systems containing ABS of different rubber content were studied. The…
Biofilms are made of biopolymers. In the casting technique, biofilms are obtained by the drying of a polymer suspension in the final stage of processing. The aim of the present paper was to analyze the effect of this drying process on the mechanical properties of films produced with amaranth flour. Variables considere…
Four homologous series of non‐symmetric linear liquid crystalline trimers, the 4‐[(4‐{n‐[4‐(4‐methoxy‐phenylazo)phenoxy]alkyloxy}benzylidene)amino]benzoic acid 6‐[4‐(4‐methoxyphenylazo)phenoxy]hexyl esters, 4‐[(4‐{n‐[4‐(4‐cyanophenylazo)phenoxy]alkyloxy}benzylidene)amino]benzoic acid 6‐[4‐(4‐methoxyphenylazo)phenoxy]h…
[structure: see text] We report the synthesis and characterization of a novel supramolecular assembly that features long-range electronic coupling between porphyrins covalently attached to a designed peptide scaffold. The resulting construct self-assembles to form extended organized aggregates in which the porphyrins…