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。
Aquatic caddisflies diverged from a silk-spinning ancestor shared with terrestrial moths and butterflies. Caddisfly larva spin adhesive silk underwater to construct protective shelters with adventitiously gathered materials. A repeating (SX)(n) motif conserved in the H-fibroin of several caddisfly species is densely p…
The possibility of forming self-organized films using only charge-stabilized dispersions of cellulose I nanofibrils with opposite charges is presented, that is, the multilayers were composed solely of anionically and cationically modified microfibrillated cellulose (MFC) with a low degree of substitution. The build-up…
Due to the presence of amorphous structure in microcrystalline cellulose, the reactivity of microcrystalline cellulose exhibits a considerable reduction in the initial stage during hydrolysis in hot-compressed water (HCW). Further analysis of the liquid products obtained at various temperatures suggests that the amorp…
In this paper, an innovative control strategy for hybrid power sources dedicated to automotive applications is detailed. First, an analysis of classical hybrid architectures using fuel cell (FC)/supercapacitors is presented. Then, an analysis of load requirements for automotive applications is proposed. A new control…
In 1908, Gustav Mie solved Maxwell's equations to account for the absorption and scattering of spherical plasmonic particles. Since then much attention has been devoted to the size dependent optical properties of metallic nanoparticles. However, ensemble measurements of colloidal solutions generally only yield the tot…
Thin layers of water on biomolecular and other nanostructured surfaces can be supercooled to temperatures not accessible with bulk water. Chen et al. [Proc. Natl. Acad. Sci. U.S.A. 103, 9012 (2006)]10.1073/pnas.0602474103 suggested that anomalies near 220 K observed by quasielastic neutron scattering can be explained…
The potential ecotoxicity of nanosized zinc oxide (ZnO), synthesized by the polyol process, was investigated using common Anabaena flos-aquae cyanobacteria and Euglena gracilis euglenoid microalgae. The photosynthetic activities of these microorganisms, after addition of ZnO nanoparticles, varied with the presence of…
SO 2 would deactivate the low-temperature SCR (selective catalytic reduction) catalysts and reduce NO removal. In this study, Fe(0.1)−Mn(0.4)/TiO 2 prepared by sol−gel method was selected to carry out the in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFT) investigation for revealing the mechan…
Polymer properties, such as their mechanical strength, barrier properties, and dielectric response, can be dramatically improved by the addition of nanoparticles. This improvement is thought to be because the surface area per unit mass of particles increases with decreasing particle size, R, as 1/ R . This favorable e…
We report ensemble-averaged measurements of colloidal hotspots enabled by the synthesis of highly uniform dimers and trimers of Au@Ag nanoparticles and the quantification of the relative concentrations of the nanoclusters.
Anharmonicity of phonons in silicon manifesting in dependence of peak frequency in Raman spectrum versus temperature in range from 80 to 900 K was studied. The obtained data allow to improve method of definition of average sizes of silicon nanocrystals using Raman scattering data analysis, in the case of the not room…
This work reports a correlation study between the crystal structure and photoluminescence (PL) in A 2 MnX 4 (A: [CH 3 ] 4 N; X: Cl, Br) by means of simultaneously optical spectroscopy and x-ray diffraction (XRD) under pressure. These materials are attractive systems for PL studies under pressure since they are very co…
The regularities in the formation of different types of Anura coccygeosacral articulations have been determined. A review of factors that affect the form of this articulation is presented. It has been established that the determinant role in the formation of a moveable or immoveable articulation is played by the topog…
Pressure calibration experiments were performed at room temperature for a Drickamer-type apparatus using a composite anvil system with a sintered diamond anvil, which can be replaced by nano-polycrystalline diamond anvil. The culet diameter and tapering angle are 1.0 mm and 30°, respectively. Transitions in Fe2O3 (50…
The ground state electronic structure of Gd2SrAl2O7 are calculated using first principles, we found that only the Density functional theory (DFT) + U can correctly describe the Gd2SrAl2O7 as a charge-transfer type insulator. Gd-O and Al-O bonds have strong covalent character and Sr-O is a perfect ionic bond. The band…
T91/12Cr2MoWVTiB was bonded by transient liquid phase bonding process with different pressures, one commercial FeNiCrSiB was used as the interlayer. The microstructure and components distribution of the bonded joints were examined by optical microscope and scanning electron microscopic techniques. Furthermore, the pro…
It has long been recognized that the quality of yarn depends on the performance of the processes during spinning. This work relates to evaluating the opening action of blow room and aims to develop the openness tester for measuring the openness of fibrous assembly based on the image processing technique. A sequence of…
US company PMC Polymer Products Co has introduced a line of flame retardant masterbatches free from decabromodiphenyl ether (deca-BDE). The launch follows the recent announcement that deca-BDE is to be phased out from all applications in the USA by the end of 2013 [ ADPO , February 2010].
This research involves study effect of halogen ions presence in 0.2M sodiumsulphate on the corrosion of brass at room temperature (30oC). Three concentration ofhalogen ions (Fˉ, Clˉ, Brˉ, and Iˉ) were used 0.1, 0.2, and 0.3 M. The different incorrosion parameters before and after added the halogen ions interpreted and…
Abstract In this work, we report a novel electrochemical technique to prepare band gap engineered IV–II–VI type ternary solid solution system of Pb x Cd 1– x Se. This technologically important material is prepared using this method for the first time. We have used a self sufficient modified electrochemical cell made u…