Materials Literature
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We report the synthesis and characterization of hitherto unreported bent‐shaped dimeric liquid crystals based on a furan bridge in the mesogenic core. The compound 18‐Fu2 exhibits liquid crystalline behaviour.
Microcellular wood fibre reinforced polypropylene composites, a new development using bio-fibre strengthened plastic, were prepared in an injection moulding process. The influence of three different endothermic chemical foaming agents was examined. The effects of various concentrations (1 to 4 wt.% of the composites)…
Composite materials have become a necessity in recent times due to their attractive properties. The use of natural fibers is also having enough potential in the formation of feasible composites. The use of such composites in structural application as a low cost material has created a new horizon for investigation. Jut…
We report on the photoresponsivity of ZnO Schottky barrier diodes grown on (0001) GaN∕Al2O3 substrates by plasma-assisted molecular-beam epitaxy. First, ZnO Schottky barrier diodes show a reverse saturation current of ∼10−8A in the dark, and they present a large current buildup of ∼103A under ultraviolet light illumin…
All available literature data on the thermodynamic properties of Mn-Si alloys are analyzed. Optimized concentration dependences of the thermodynamic functions of mixing are obtained.
Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text A. V. Grinkevich, "Version of an objective with variable focal length," J. Opt. Technol. 73, 343-345 (2006) Export Citation BibTex Endnote (RIS) HTML P…
Charge enhancement of organic materials that was deduced more than two decades ago by means of capacitance-voltage (C-V) measurements meets with difficulties and controversial explanations when using the classical semiconductor theory. Experimentally, it has been found that the charge localization results in nonstatio…
Strontium is one of the most common substituents in apatite crystals. The presence and behavior of Sr in apatite-group phases are of considerable significance in biology. The present paper investigates the substitution of strontium for calcium in a glass-ceramic of the following composition 4.5SiO23Al2O31.5P2O54CaO1Ca…
We have prepared metastable misfit-type Sr3Co4O9 epitaxial films by rf-planar magnetron sputtering. Anisotropic electric resistivity and Seebeck coefficient (parallel and perpendicular to the CoO2 layers) were measured using a-axis-oriented Sr3Co4O9 films where the layer structure stands perpendicularly to the substra…
Two boron complexes of 5-phenyldipyrromethenes bearing isothiocyanate groups on the phenyl ring have been synthesized for the first time. The utility of these new fluorescence probes for labeling biologically relevant proteins is demonstrated on two monoclonal antibodies that bind to antigens overexpressed on cancer c…
In this study, a detailed topological charge density analysis based on the quantum theory of atoms in molecules (QTAIM) developed by Bader and co-workers, has been accomplished (using the B3LYP method) on the CB 6 2 anion and three planar isomers of the C 3 B 4 species, which had been first proposed by Exner and Schl…
Abstract The phase equilibria of Mg-rich Mg–Mn–Zn alloys are scrutinized on the basis of computational thermochemistry. The experimentally well-established facts are very well reproduced by the present calculation. The important invariant reaction involving Mg-solid solution is calculated to be a transition type react…
A Comment on the Letter by P. Umari and Alfredo Pasquarello, Phys. Rev. Lett. 95, 137401 (2005).. The authors of the Letter offer a Reply.Received 30 September 2005DOI:https://doi.org/10.1103/PhysRevLett.96.199701©2006 American Physical Society
Complex impedance and dielectric permittivity of titania-polypyrrole nanocomposites have been investigated as a function of frequency and temperature at different compositions. A very large dielectric constant of about 13,000 at room temperature has been observed. The colossal dielectric constant is mainly dominated b…
Neutron reflectivity measurements were used to investigate the thermal stability of layer-by-layer (LBL) films of poly(o-methoxyaniline) (POMA), which was probed by increasing the temperature up to 80 degrees C of a D2O solution in contact with the LBL films. The study was made possible by adsorbing POMA layers on a P…
This paper reports the magnetoelectric properties of CoFe2O4-BaTiO3core-shell structure composites. Crystalline structures of the composites were investigated by X-ray diffractometer (XRD). Magnetic properties were studied using a pulse field magnetometer. Magnetostriction was measured using strain gauge method. AC su…
The periodic composite structures consisting of magneto-dielectric constituents as well as metallic wires, flakes leads to determine a particular configuration which may lead to electrical and/or magnetic properties which naturally cannot be obtained from single constituents. It was shown that the periodic wires struc…
Recently, field emission displays using printed carbon nanotubes (CNTs) as an emitter have been researched eagerly. By laser irradiation, some CNTs in the printed CNT layer stand out, and they work as the emission sites. We found that the higher CNTs that are easier to be the emission sites tend to exist at the bounda…
Two photoluminescence (PL) components with peaks around 2.8–3.0 and 3.8eV were induced in hafnium silicates by the irradiation of synchrotron radiation photons at 8.0eV, while two similar ones were induced in zirconium silicates around 2.7–3.0 and 3.8eV. By examining PL excitation spectra, PL decay characteristics, an…
In this study, the mechanical properties of fifty-eight light-weight wool/wool-blend fabrics and twenty medium to heavy-weight cotton denim fabrics were analyzed by multi-dimensional techniques of principal component analysis. The technique reduced the dataset of wool/wool-blend fabrics into seven components and expla…