Materials Literature
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In this experimental work, we investigated the dynamic behaviour of the transient holographic grating in an Azo dye doped nematic liquid crystal, formed by a pulsed laser. Relaxation behaviour of the grating was studied in two experimental geometries, when the director is parallel or perpendicular to the grating vecto…
The application of photoalignment technique for rheological study of liquid crystals is considered. Such technique can be used for the initial preparation and rotation of mono domain samples of liquid crystals. It provides new possibilities in measurements of anisotropic viscosities of liquid crystals. Three shear and…
The effects of calcination temperature and feedstock pretreatment on the catalytic performance of Co/γ-Al(2)O(3) catalysts were studied for partial oxidation of methane (POM) to synthesis gas, with emphasis on the role of feedstock pretreatment. The physicochemical properties of the catalysts were characterized by N(2…
Abstract Maleic anhydride (MAH) grafted onto ethylene vinyl acetate copolymer (EVA), mEVA (modified EVA) was blended with poly(ethylene glycol‐ co ‐cyclohexane‐1,4‐dimethanol terephthalate) (PETG) with various mEVA and EVA (unmodified) content in the internal mixer. The effect of reactive compatibilizer to decrease th…
Iron substituted barium titanate (BaTiO3, BT) has been found to exhibit both ferroelectric and ferromagnetic behavior at room temperature [Xu et al., Phys. Rev. B 79, 134109 (2009)]. However, ferroelectric properties of Fe-doped BT are not as pronounced as those of pure BT. It happens because iron doping causes hexago…
Zinc oxide is typically used as an electron acceptor in the preparation of hybrid solar cells. Such hybrids are, in many cases, synthesized from solutions. In this work, we investigate the possible persistence of solvent tetrahydrofuran molecules at the interface with zinc oxide by means of atomistic simulations based…
( Na 0.5 K 0.5 ) NbO 3 is doping with ZnO and CuO , respectively, ( NKNZ x and NKNC x , where x = 0–1 mol%) using a two‐step calcination process ( BO method). The X ‐ray diffraction profiles of NKNZ x ceramics show a few secondary phases because Zn 2+ ions cannot substitute Nb 5+ ions. Moreover, the binding energies o…
Electrical transport properties of onion-like carbon (OLC) based composites over a wide (20 Hz–4 THz) frequency range are reported. The dependencies of dc conductivity on temperature can be approximated by the Mott law for one-dimensional variable range hopping below 130 K and by the typical law for fluctuation induce…
In this work, different woven fabrics with varying raw materials, fiber types and weave constructions were used for studying plasma treatment under different atmospheric conditions. Surface modification was characterized using wetting and capillarity surface analysis methods. Moreover, a fuzzy sensitivity variation cr…
Electrical, structural and optical properties of a composite containing a polymer electrolyte (namely polyethylene oxide complexed with sodium iodide) and multiwall carbon nanotube (MWCNT) are reported. The films of these composites were ‘solution casted’ using the viscous solution of polyethylene oxide (PEO) complexe…
A network of gold nanostructures exhibiting one-dimensional gold nanostructure properties may become a prospective novel structure for optical, electrical and catalytic applications benefited by its unusual characteristics resulting from the collective properties of individual nanostructures in the network. In this pa…
Abstract— A reflective polarizer‐free display using dye‐doped polymer‐stabilized blue‐phase liquid crystal (DDPSBP‐LC) has been demonstrated. The mechanism is a combination of electrically tunable light absorption and Bragg reflection. In this paper, the influence of light absorption in DDPSBP‐LC by changing the dye c…
Mg-M-O solid solution films (M = Mg, Al, Cr, Ti, Zr, and Y) with various M contents are grown employing reactive co-sputtering by varying the target-to-substrate distance. It is shown that all films are biaxially aligned. When the two cathodes are equipped with the same target material (Mg), the in-plane alignment is…
All papers and posters presented at the conference and covers all topics, including: Dyeing, Finishing & Printing, Technical Textiles, Sustainability, Smart Fabrics and Design, Fashion & Footwear. The papers have been reproduced directly from the authors? typescripts and have not been subjected to the usual ed…
The majority of species belonging to the genus Nitzschia are distinguished by minute taxonomic features that are difficult to observe and document. Currently, geographical distributions for many species are recognized as cosmopolitan; in contrast endemic species are poorly documented and studied. Our study describes t…
One hundred-eighteen surface soil samples (59 samples from cultivated areas and 59 samples from virgin soils) were studied to ascertain if potassium (K) quantity-intensity (Q/I) parameters of the soils are being changed by long-term sugar beet cropping. Long-term cultivation resulted in a significant decline in the eq…
An array of electrically controlled adaptive microlenses produced as a liquid crystal cell with microlens-profiled aligning surface is presented. Measurements of microlens’ adaptivity are quantitatively explained by a proposed theoretical model. Details of microlens array production and characterization are presented…
In this study, the encapsulation of F(-) in different nanotubes (NTs) has been investigated using electronic structure calculations and Car-Parrinello molecular dynamics simulations. The carbon atoms in the single walled carbon nanotube (CNT) are systematically doped with B and N atoms. The effect of the encapsulation…
Scanning tunneling spectroscopy (STS) was used to measure local differential conductance (dI/dV) spectra on nanometer-size graphene islands on an Ir(111) surface. Energy resolved dI/dV maps clearly show a spatial modulation, which we ascribe to a modulated local density of states due to quantum confinement. STS near g…
Tensile properties and geometrical behavior of a plain weave fabric under arbitrary direction are addressed in this study. A geometrical–mechanical model is established on the basis of the deflection curve and flattening of tensioned yarn. For this purpose, a differential equation to assess the curvature of tensioned…