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。
In this work we report on spectrophotometric studies for two-layer granular films of Al-In alloys. The films are prepared using thermal precipitation in vacuum on roughened NaCl substrates heated to 300C, with subsequent deposition of additional layer of a NaCl-substrate material. As a result, the two-layer granular f…
In this paper, polyester polyol, toluene diisocyanate (TDI) and hydroxyethyl acrylate (HEA) were taken as the raw materials to synthesize polyurethane acrylate. UV curable organic silicon nano sol was synthesized by γ-methacryloxypropyltrime-thoxysilane. The UV curable polyurethane materials modified by organic silico…
Based on the merits and demerits of conventional methods for fabricating TiO 2 @carbon nanofibers (TiO 2 @CNFs) composites, the composites were prepared via a foaming-assisted electrospinning strategy and subsequent thermal treatment.
A 3D electromagnetic model of the end region of a 1550 MW nuclear generator is set up. The electromagnetic forces on the involute and nose parts of the end winding under a rated operation are obtained through the 3D time-step finite element method. The electromagnetic forces on different coils in the same phase are an…
Silk sericin/cellulose cross-linked films were successfully prepared using glutaraldehyde as cross-linkinger. FTIR was applied to characterize the chemical structure of films. Cross-linked silk sericin film was found the peak intensity of FTIR for cross-linked film decreased markedly compared to pure silk sericin, whi…
Radioactivity data in food and farm soil in sedimentary rocky areas like Ayetoro, Nigeria, are scarce. Maize, cassava and the underneath soil samples were collected from Ayetoro. The 40K, 226Ra and 232Th activity concentrations in the samples were measured with a gamma ray spectrometer. The soil-to-food crop transfer…
In this paper an analytical approach for calculation of mechanical strength of oval windings in distribution transformers is presented. The calculation is given for radial forces resulting from interaction of the axial component of leakage flux density and the current in the windings. The analysis is focused on the in…
The paper presents results of the cold spraying of aluminum bronze coatings on substrates profiled with WC/Ni tracks obtained by laser cladding. Reinforcing cermet frames shaped as grids with varied mesh sizes were clad on stainless steel substrates using a CO2 laser machine “Siberia” (ITAM SB RAS, Russia). As a resul…
The metals anodization process used to enhance the surface hardness and corrosion resistance. This study developed a durable hard Nano copper oxide coating on copper using anodization technique in solutions of 0.1 to 0.5 M oxalate concentrations and 0 to 24°C operating temperature. The settings of the process paramete…
The physical properties of silicate liquids show peculiar behaviors under pressure. Shear viscosities of acidic silicate liquids decrease with increasing pressure although that of basic silicate liquids increase. Moreover, the anomalies in compression curves also have been reported. These experimental results indicate…
The catalytic properties of the magic gold–platinum bimetallic clusters (Au 4 Pt 2 and Au 6 Pt) for the reduction of SO 2 by CO, without or with preadsorbing CO molecules, are investigated using density functional theory calculations.
A new graphene oxide-based two-mode fluorescence signal amplification strategy for the detection of protease activity has been established.
and 2a sites of the structure, a type of disorder frequently found in σ-phases. We present a graphical classification for ternary σ-phases that places our materials in context with previous materials. The materials do not show evidence of bulk superconductivity above 2 K. Synthesis of equivalent Ta-based σ-phases was…
Incoloy 800H is one of the main stainless steel materials used in steam generators with High Temperature Reactor Pebble-bed Modules (HTR-PM). In this study, the diffusion behaviors of hydrogen isotopes in Incoloy 800H were investigated with first-principle calculations. Numerical results reveal that the starting and e…
Octaoctyl substituted fluorenophanetetraene has been synthesized and the photooxidation of the fluorenophanetetraene gives all trans linear fluorenevinylene with aldehyde end groups.
Narrow-gap organic semiconductors with high conductivity and mobility toward thermoelectric and optical device applications were designed.
Poly(ethylene-alt-tetra-fluoroethylene (ETFE) and poly(tetrafluoroethylene-cohexafluoropropylene) (FEP) were pre-irradiated under air using a Co60 gamma source to graft styrene at low pH. Grafting copolymers were tuned by study of different parameters (monomer, reaction time, temperature, and pH with addition of sulfu…
本研究では，製鉄所構内において積付け開始日の異なる大気エージング処理工程中の7つの製鋼スラグ山から所定の期間ごとに試料を採取し，自然含水比，土粒子の密度，粒度，pH(H2O)，電気伝導率，カルシウムイオン濃度，水浸膨張比の測定を行った。得られた結果より，大気エージング期間の経過にともなって散水や降雨の影響により自然含水比は増加し，土粒子の密度は減少することが明らかとなった。また，pH(H2O)，電気伝導率，カルシウムイオン濃度は，エージング期間の経過にともなう推移はほとんど認められず，大気エージング処理工程中の製鋼スラグ山内部では，「炭酸化効果」は発揮されていないことが明らかとなった。一方，水浸膨張比は大気エージング期間の経過にと…
In recent times, nanofibers have attracted the attention of researchers due to their pronounced micro and nano structural characteristics that enable the development of advanced materials that have sophisticated applications. The production of nanofibers by the electrospinning process is influenced both by the electro…
Supramolecular precursors [(R–CC–CC)Ag] 4 (PPh 3 ) 4 (R = iPr and chx) are employed to construct three iso-structural silver( i ) alkyl-1,3-diynyl cluster complexes that bear the same novel trigonal bipyramidal Ag 5 core.