Materials Literature
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Received: 2/Jun/2007, Accepted: 31/Jan/2008 Objective: Investigation of the suitability of electrospun Poly (e-caprolactone) (PCL) nanofiber scaffold for the Vero cell culture. Materials and Methods: Electrospinning was used for production of PCL nanofibers scaffolds. Scanning electron microscopy (SEM), MTT assay, hem…
Purpose: The favourable properties of magnesium account for the fact that it is applied not only in cast structural components but also in those subjected to plastic working. Currently, intensive works are conducted to optimize the processes of plastic working of these alloys The following work concentrates on the ana…
Previous experimental studies have shown that addition of smallamounts of oxygen to a hydrocarbon fuel stream can controlcoking in the anode, while relatively large amounts of oxygenare present in the fuel stream in single-chamber SOFCs. Inorder to rationally design an anode for such use, it isimportant to understand…
The solubility of paracetamol in water-ethanol-propylene glycol binary and ternary mixtures at 25 and 30 degrees C was determined using flask shake method. The generated data extended the solubility database for further computational investigations and also was used to assess the prediction capability of the Jouyban-A…
This paper presents investigations into the wetting phenomenon of terry fabrics. Terry fabrics were manufactured using linen warp pile yarns. The high absorption ability of terry textile is acquired by increasing the capability of the moisture absorbing surface to retain liquid in its pores and internal pores of the t…
Abstract In recent years, tetrathiafulvalene (TTF) and its derivatives have been used as semiconducting materials for organic field-effect transistors (OFETs). In this review, we summarize the recent progress in the field of TTF-based OFETs. We introduce the structure and operation of OFETs, and focus on TTF derivativ…
AbstrAct Purpose: The aim of this work was to improve the surface layer cast magnesium alloy EN-MCMgAl6Zn1 by laser surface treatment. The purpose of this work was also to determine the laser treatment parameter. Design/methodology/approach: The laser treatment of an EN-MCMgAl6Zn1 magnesium alloy with alloying WC and…
A metallic particle appeared in a gas insulated switchgear (GIS) sometimes adheres on a solid spacer surface. If the adhered metallic particle is exposed to a surge high voltage, a breakdown (BD) may be induced. Therefore, it is eagerly demanded to diagnose its risk correctly under the service voltage by partial disch…
Mesoporous silica nanoparticles with a two-dimensional center-rectangular (plane group c2mm) lattice and coiled elliptical channels have been synthesized; the new synthetic route also allows simple control over the lattice dimensions and the elliptical shape of the channels.
With four case studies (dry-type transformer, power transformer, GIS, generator) this paper describes the principle of synchronous multi-channel PD measurements and its benefits for PD data evaluation. With respect to monitoring the tracing of a charge value as QIEC over the measuring time is not sufficient to assess…
Composite cathodes of Cu1.25Mn1.75O4 (CMO) spinel and yttria stabilized zirconia (YSZ) were made by infiltration of a precursor Cu–Mn gel into a porous YSZ matrix. Structural characterization showed no evidence of secondary phases but revealed a continuous network of CMO in the YSZ framework. Impedance spectroscopy an…
An in situ thermal desorption study of solvated aluminum hydride (alane) by transmission electron microscopy and selected area diffraction has permitted characterisation of the structural and morphological changes during desorption of solvent and hydrogen in real-time; this powerful technique for studying hydrogen sto…
We report the designing and evaluation of a cathode-honeycomb-supported solid oxide fuel cell (SOFC), capable of generating high volumetric power density. The numerical analyses showed that the cathode-honeycomb-supported SOFC can be the most efficient form with the lowest current collection loss, as compared with the…
In the present paper, barium carbonate crystals with higher-order superstructures have successfully been synthesized via a rapid microwave-assisted route in the aqueous system with sodium dodecyl sulfate (SDS), employing BaCl2·2 H2O and NaHCO3 as starting reagents. X-Ray powder diffraction (XRD) analysis showed that t…
Thermodynamic mixing properties and subsolidus phase relations of Ca2Mo2O8-NaEuMo2O8 powellites were modelled in the temperature range of 423-1773 K with static lattice energy calculations based on empirically constrained interatomic potentials. Relaxed static lattice energies (SLE) of a large set of randomly varied s…
Two novel series of rufigallol-based room-temperature discotic liquid crystals have been designed and synthesized using microwave dielectric heating within a few minutes in good yield. The chemical structures of all the compounds have been characterized using spectral techniques and elemental analysis. The mesophase b…
The photochemical stability of lignocellulosic and purely cellulosic paper deacidified with five dispersions of Ca(OH) 2 and Mg(OH) 2 nanoparticles in alcohols was studied. The hydroxide particles were produced either by “slaking” of CaO in an appropriate aqueous solution (two dispersions) or by homogeneous phase reac…
In homogeneous media, N,N-Dimethylacrylamide (DMA) was grafted copolymerization to cellulose by a metal-catalyzed atom transfer radical polymerization (ATRP) process. First, cellulose was dissolved in DMAc/LiCl system, and it reacted with 2-bromoisobutyloyl bromide (BiBBr) to produce macroinitiator (cell-BiB). Then DM…
Octanoylalaninato-metal (metal = calcium(II), yttrium(III), lanthanum(III), and zinc(II)) complexes were prepared and the first three metal complexes were found to readily form transparent and stable molecular glasses from methanol and chloroform solutions. The process of glass formation from solution was studied in d…
This paper reports the results of microwave sintering (without post‐sintering annealing) on the microstructure, phase assemblage, and properties of 8 mol% (PSZ—partially stabilized zirconia), and 16 mol% (FSZ—fully stabilized zirconia) MgO‐alloyed zirconia. For the PSZ samples sintered at 1585°C, a maximum densificati…