Materials Literature
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This report compares the available experimental neutron flux data in the High Flux Isotope Reactor (HFIR) to computational models of the HFIR loosely based on the experimental loading of cycle 400. Over the last several decades, many materials irradiation experiments have included fluence monitors which were subsequen…
Particle shape is one of the major parameters governing the structure in hard-particle systems. A 2D-dumbbell, which consists of a pair of binary disks connected to each other, has two geometrical characteristics: the existence of a bond and asymmetry due to a size difference. We investigate the effects of the geometr…
Passivated emitter and rear cells (PERC) are considered to be the next generation of industrial-type screen-printed silicon solar cells. However, today there exist only few deposition methods for rear passivation layers which meet both, the high-throughput and low-cost requirements of the PV industry in combination wi…
Unprecedented room temperature excitonic emissions are achieved from TiO(2) nanocrystals synthesized at 300 K by supersonic cluster beams. Transmission electron microscopy studies show the crystalline nature of the nanoparticles (NPs) with a diameter ranging from 5 to 30 nm. All the samples show mixed rutile and anata…
The aim of the investigation was to design and prepare a fibrous mat containing chicken feathers as an active filling to absorb spills of petroleum derivatives. The fibrous mat used to remove petroleum contamination consists of an active layer from chicken feathers (the main waste from poultry plants), placed between…
A new equivalent circuit for a coplanar waveguide loaded with split ring resonators is presented. The traditional circuits that model these devices are only able to characterize the left-handed propagation band, and their response is very similar to the real one within a very limited bandwidth. In contrast, this propo…
Mesoporous silica monoliths containing arrays of aligned macropores oriented perpendicular to their surfaces were prepared by non-destructive imprinting of sol/gels with polymer nanorod arrays. Crack-free monoliths with areas of up to 2.5 cm2 were obtained by a combination of slow drying under ambient conditions and o…
Nanoparticles of foreign element catalytic agents (FECAs) are widely employed for nanotube synthesis. Today these FECA nanoparticles include metals, semiconductors, oxides, clusters, polymers, and ceramics. Despite their very diverse characteristics, they all mediate nanotube growth. It is not known how they do it; th…
The aim of work was to develop flexible shielding materials with radio protective properties. The article describes the investigation of the effect of metal coatings and their deposition parameters on the shielding properties of textile materials for creation of materials for protection of human organisms from electro…
Two dimensional thin layer chromatography on DIOL polar bonded stationary phase was performed to optimize the separation of some anioxidant phenolic compounds from Eupatorium cannabinum extracts. Ethyl-methyl ketone mixed with n-heptane and ethyl acetate mixed with n-heptane were used as non-aqueous mobile phases in n…
This study investigates the in vivo analgesic and anti-inflammatory activities of various extracts prepared from Apium graveolens. This activity was evaluated with the acetic acid-induced writhing response method. The subcutaneous carrageenan injection induced hind paw edema. The treated animals received different dos…
Dispersions of proton spin–lattice relaxation rates (R1) in the nematic and smectic phases of the liquid crystal 4′-octyloxy-4-cyanobiphenyl (8OCB), embedded in a nano-porous medium formed by an aerosil matrix, are investigated over a wide frequency (ν) range (104 Hz to 5 × 107 Hz) at two average pore sizes. In the lo…
We report the selective and catalyst-free growth of Sb2Te3 and Te nanowires by thermal annealing of sputter-deposited Al–Sb–Te thin films. Sb2Te3 and Te nanowires were grown at low temperature (∼250 °C) under N2 and O2 gas atmospheres, respectively, and they were extruded spontaneously on the surfaces of Al–Sb–Te film…
Lap joining of crystalline pure aluminum and metallic glass (Zr48Cu36Al8Ag8 and Cu50Zr42.5Al7.5) was carried out by using magnetic pulse welding. Transmission electron microscopy was performed for the welding interface in order to investigate microstructure of the intermediate layer produced at the welding interface.…
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The stabilisation of emulsified microemulsions using different concentrations of colloidal disk-like particles (Laponite) is investigated. The resulting structures are characterised by cryo-TEM, small-angle and very small-angle neutron scattering methods. We show that the Laponite colloids are effectively attached ont…
Sol-gel derived oligosiloxane resins are cured under air or N 2 by a photo-initiated thiol-ene reaction. The cured film was fabricated as a dielectric layer for use in an organic thin film transistor, and offers a higher dielectric constant (4.13) than silicon dioxide (3.9). We investigated the effects of the curing c…
SiC and SiO 2 nano-particles were co-deposited with electroless NiP coating onto API-5L-X65 steel substrates with 7g/L load of nano-particles in the bath at pH 4.6 ± 0.2 and temperature of 90 ± 2°C. The hardness and corrosion resistance of the composite coatings were measured using micro-hardness, polarization and ele…
Heart failure is one of the leading causes of death worldwide. End stage disease often requires heart transplantation, which is hampered by donor organ shortage. Tissue engineering represents a promising alternative approach for cardiac repair. For the generation of artificial heart muscle tissue several cell types, s…
Conjugated polymers are promising replacements for their inorganic counterparts in photovoltaics due to their low cost, ease of processing, and straightforward thin film formation. New materials have been able to improve the power conversion efficiency of photovoltaic cells up to 8%. However, rules for rational materi…