Materials Literature
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Experimental solubilities are reported at 25.0C for 9-fluorenone dissolved in 40 different organic nonelectrolyte solvents containing ether-, chloro-, hydroxy-, cyano and t -butyl-functional groups. Results of these measurements are used to test the applications and limitations of expressions derived from Mobile Order…
Abstract The biomineralization process was simulated in vitro by the precipitation of calcium carbonate in the presence of two biological additives: bovine serum albumin (BSA) and soluble matrix from the shell of the freshwater snail Biomphalaria glabrata . The crystallization was carried out with the classical ammoni…
Two gelator compounds were used to prepare self-assembled cholesteric liquid crystal (CLC) gels. The presence of a physical network formed by the fibrous aggregates of the gelators in the CLC host creates inhomogeneous domains and generates a highly scattering state. The scattering-based electrooptical switching effec…
A novel two-step approach to the synthesis of nanotubes of a transition metal dichalcogenide is reported. The synthesis combines a sonochemical reaction and an annealing process. MoTe2 nanotubes have been synthesized by calcining amorphous nanoparticles of MoTe2 which were sonochemically synthesized by reacting Te wit…
Barium hexaaluminate (BHA) synthesized by coupling of sol-gel process in reverse microemulsions shows a unique nanowhisker morphology and high surface area, which are retained after calcination at 1300 degrees C.
We have developed high performance anode for medium-temperature solid oxide fuel cells. Mixed conducting samaria-doped ceria (SDC) particles were employed in combination with highly dispersed metal electrocatalysts on their surfaces. A small amount of Ni nanoparticles (6-8 vol %) enhanced the anode performance signifi…
Recently we developed [1] a novel liquid crystal display device employing discotic nematic material. This device exhibits the following improvements over a conventional twisted nematic (TN) display device using a calamitic nematic material. The device (i) is simple to fabricate and (ii) has excellent viewing angle cha…
This paper examines the response of circular and square plates stluck by a rigid mass at the plate centre with a sufficient initial kinetic energy to produce large inelastic deformations. A simpliiicd analysis, which retains finite-deflection effects and assumes that the plates are made of a rigid, perfectly plastic m…
Electronic structure and optical properties of the Ce3☎ in YAG has been investigated by standard spectroscopy (photoluminescence, absorption and excitation spectra) and high pressure spectroscopy. The bandshape of the emission spectrum for different pressures has been analyzed and influence of pressure on energy of th…
The behaviour of a disc-shaped specimen of knitted fabric, which is pulled through a round hole, is described in the paper. Several pulling cases related to the boundary conditions of the specimen are analysed. Comparative analysis of these cases is performed on the basis of the specimen's behavioural features (the va…
A large number of factors influence the frictional properties of fabrics. In this paper, the influence of the fabric structure on the frictional characteristics of woven fabrics is investigated. The relations between the fabric-structural-asperity index (FSAI) that is defined in this work and frictional parameters are…
Two kinds of iodide salts of 3-(4- and 3-methylpyridinium)-1,5-diphenylverdazyl radical cations ([p-MePyDV]+I− (1) and [m-MePyDV]+I− (2)) and four kinds of 1 ∶ 1 and 1 ∶ 2 salts of the same verdazyl radical cations with tetracyanoquinodimethanide (TCNQ) anion ([p-MePyDV]+[TCNQ]− (3), [m-MePyDV]+[TCNQ]− (4), [p-MePyDV]…
The electronic properties and chemical bonding of new single-walled nanotubes based on TiO2 (anatase) were studied using the tight-binding band theory and compared with hypothetical VO2 nanotubes.
The influence of particulate silica sources on growth and silicon uptake of 3 diatom species: Cylindrotheca fusiformis, Navicula sp., and Skeletonema costatum, was investigated. Each diatom strain was incubated in controlled conditions, with mineral (quartz sand and 2 pure quartz dusts with variable degree of hydrophi…
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The vapour composition and the thermodynamic properties of Cu–Zr alloys in the liquid and solid states have been studied by Knudsen-cell mass spectrometry over the temperature (701–1823 K) and composition (5.1–97.3 mol% Zr) intervals. The accessible temperature range has been enhanced by chemically generating volatile…
In the field of arterial vascular reconstructions there is an increasing need for functional small-diameter artificial grafts (inner diameter < 6mm). When autologous replacement vessels are not available, for example because of the bad condition of the vascular system in the patient, the surgeon has no other alternati…
Blends of low density polyethylene (LDPE) and poly(dimethyl siloxane) rubber (PDMS) compatibilised with ethylene methyl acrylate (EMA) have been found to be effective heat resistant cable insulants. Various electrical, mechanical, and thermal properties have been studied. From these studies, it can be concluded that t…
The electropolishing of a boron-doped diamond (BDD) film deposited by chemical vapor deposition has been studied in acetic acid- media. The electropolished surface has been characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and electrochemical measurements. The results have sh…