Materials Literature
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Gold, silver, platinum and palladium typically crystallize with the face-centred cubic structure. Here we report the high-yield solution synthesis of gold nanoribbons in the 4H hexagonal polytype, a previously unreported metastable phase of gold. These gold nanoribbons undergo a phase transition from the original 4H h…
Bulk nanoSPD materials are materials with nanostructural features, such as nanograins, nanoclusters, or nanotwins, produced by severe plastic deformation (SPD) techniques. Such nanostructured materials are fully dense and contamination free and in many cases they have superior mechanical and functional properties. Her…
This paper reports on the electrochemical dealloying of a ternary Al 67 Cu 18 Sn 15 (in at.% throughout the paper) alloy consisting of a-Al, Al 2 Cu and Sn using potentiodynamic and potentiostatic polarization measurements. When the applied potential (-0.5 V) was below the critical potential of the Al 2 Cu phase (-0.4…
The phase structure and macromolecular chain motion of aromatic waterborne polyurethane film were examined by the fluorescence technique. Excimer emission of the phenyls appears at 436 and 468 nm and is temperature dependent, suggesting that the hard segments in the intermediate phase can be locally oriented. Binding…
Rice straw cellulosic ethanol fermentation waste (CEFW) and municipal solid waste derived fiber (MSWF) were used as alternative fibers for recycled paper making. The fibers were mixed with old newspaper (ONP) fiber at different mass ratios to produce standard recycled papers and paperboards. A "green" adhesive binder…
A new FAD (flavin adenine dinucleotide)-dependent halogenase HalY from Streptomyces sp. JCM9888 was reported to be involved in the regioselective halogenation of adenine. HalY is a variant B FAD-dependent halogenase that is most similar to the halogenase PltA involved in pyoluteorin biosynthesis. This study reports th…
The Fourier transform infrared spectroscopy and Fourier transform Raman spectra of phenylacetyl chloride were recorded and analyzed in the range 3500–400 and 3500–200 cm −1 at room temperature, respectively. In order to obtain the structural information and conformational stabilities, a potential energy surface scan f…
Alternating polyelectrolyte deposition is a promising route to the low-cost fabrication of electroluminescent devices based on semiconductor nanoparticles, but optimization and exploitation demand a deeper understanding of the fabrication mechanism, which has not hitherto been scrutinized in detail. Nanoparticle–polym…
An investigation of the dielectric characteristics of poly(3,4‐ethylenedioxythiophene) nanoparticles has been conducted in the frequency range 20 Hz–2 MHz and the temperature range of 80–300 K through the studies of dielectric permittivity, modulus formalism and ac conductivity. High‐resolution transmission electron m…
Femtosecond optical pump-probe spectroscopy is used to reveal the influence of charge and magnetic order on polaron dynamics and coherent acoustic phonon oscillations in single crystals of charge-ordered, ferrimagnetic LuFe2O4. We experimentally observed the influence of magnetic order on polaron dynamics. We also obs…
Project: Ukrainian scientific book in a foreign language Authors: V.M. Loktev, Yu.G. Pogorelov Year: 2015 Pages: 181 ISBN: 978-966-360-279-0 Publication Language: English Publisher: PH “Akademperiodyka” Place Published: Kyiv doi: https://doi.org/10.15407/akademperiodyka.279.181 Book Type: Monograph The book considers…
As a critical stage which severely affects the final coalescence of droplets, film drainage in the collision process of two simple droplets has been deeply studied for many years. However, the collision of multiple emulsions which contain other phases (like daughter droplets or particles) has never been studied althou…
The synthesis and the crystal structure of isotactic poly(( R, S )-3-methyl-1-pentene) (iP( R, S )3MP) are presented. The synthetic strategy based on hydrogenation of isotactic 1,2-poly( E -3-methyl-1,3-pentadiene) has allowed for the preparation of a purely random copolymer of the two enantiomeric ( R )- and ( S )-3-…
Transformation optics provides scientists and engineers with a new powerful design paradigm to manipulate the flow of electromagnetic waves in a user-defined manner and with unprecedented flexibility, by controlling the spatial distribution of the electromagnetic properties of a medium. Using this approach, over the p…
The optical properties of two series of azobenzene derivatives were modulated by backbone modifications with the density functional theory (DFT) calculations. Compared to the short-chain molecule, the chromophore with an elongated π-bridge exhibits a greater extent of charge transfer during one-photon excitation and h…
This paper reports the synthesis of Gd2SiO5phosphor by a modified solid-state reaction method. The sample was characterized by the X-ray diffraction (XRD) technique, and the XRD spectrum matched with JCPDS card specifically appeared for Gd2SiO5. This is a confirmation of proper preparation of the sample. Photoluminesc…
A series of ecofriendly glycerol plasticized starch/polyvinyl alcohol (PVA) bionanocomposite films were prepared by the solution casting method using cellulose nanofibril (CNF) particles as reinforcement fillers. CNF particles were prepared by acid hydrolysis of cotton slivers. The bionanocomposite films had 3, 6, 12,…
Previous studies of quantum chaotic scattering established a connection between classical dynamics and quantum transport properties: Integrable or mixed classical dynamics can lead to sharp conductance fluctuations but chaos is capable of smoothing out the conductance variations. Relativistic quantum transport through…
Abstract A common problem faced in fabric manufacturing is the production of inconsistent fabric width on shuttleless looms in spite of the same fabric specifications. Weft-wise crimp controls the fabric width and it depends on a number of factors, including warp tension, temple type, fabric take-up pressing tension a…
Recent developments in molecular pathology and genetics have allowed the identification of human glutaminyl cyclase (hQC) among the abnormal proteins involved in many neurodegenerative disorders. Difficulties in obtaining large quantities of pure protein may limit the use of crystallographic screening for drug develop…