Showing papers in "Current Applied Physics in 2006"

TL;DR: In this paper, the thermal conductivity enhancement of water-based MWCNT nanofluid is increased up to 11.3% at a volume fraction of 0.01.

TL;DR: In this paper, various nanoparticles, such as multi-walled carbon nanotube (MWCNT), fullerene, copper oxide, silicon dioxide and silver, are used to produce nanofluids for enhancing thermal conductivity and lubrication.

TL;DR: In this paper, optimized conditions to produce nanofibers using Nylon 6 are investigated and the nylon 6 nanofilters with diameters ranging from several microns down to 100nm or less are designed and evaluated.

TL;DR: In this article, a novel technical approach has been developed to produce highly loaded and aligned SWNT (single wall nanotubes) nanocomposites by infiltrating SWNT mats with a low viscosity resin solution.

TL;DR: In this article, the absorption spectral analysis showed that the unirradiated polycarbonate films have no absorption bands, while the irradiated films have two shoulder bands, which suggests that PC undergoes a photo-degradation process.

TL;DR: In this article, the microstructure of ultrafine-grained fcc metals (Al, Al-Mg alloys, Cu and Ni) produced by applying severe plastic deformation (SPD) techniques is studied by X-ray diffraction line profile analysis.

TL;DR: In this article, the effects of surface modification in nano-magnetite were evaluated by characterization and cell response, and the synthesized magnetite exhibited a mean diameter of 10.3 ± 2.6nm.

TL;DR: In this paper, a combination of severe plastic deformation with traditional metal forming process is used to produce a nanostructured material with high tensile and fatique strength and enhanced ductility.

TL;DR: In this article, the imaging properties of a number of potential X-ray photoconductors for flat panel x-ray image detectors were examined and compared with special attention to stabilized a-Se and HgI2, currently the most promising materials.

TL;DR: In this article, the authors describe the design and function of a microchip which is used to detect, analyse and count single micron-sized particles at high speed using multi-frequency electrical impedance together with single particle fluorescence spectroscopy.

TL;DR: In this article, a polypyrrole-cellulose composite with poly(poly(n) and protein (wool) fibres has been proposed to conduct poly(n)-fibre composites.

TL;DR: A novel highly transparent intrinsic zinc oxide (ZnO) thin films (without adding any dopants and annealing) were grown by pulsed laser deposition (PLD) technique using Johnson Matthey-grade ZnO pellets.

TL;DR: An ultrasound mediated simple emulsion process has been demonstrated for the synthesis of zinc ferrite nanocrystals using the precursors of zinc and iron acetates and rapeseed oil as mentioned in this paper.

TL;DR: In this article, the electrical conductivity of ZnO films deposited on Si by the RF sputtering technique were modified by low-energy hydrogen implantation, and the results suggest that reducing the n-type conductivity using low energy hydrogen implantations without annealing may provide a pathway for passivating the donors for a possible subsequent formation of p-type acceptors by ion implantation.

TL;DR: In this paper, the ground state and low-lying excited electronic states in the Ir(III) complexes, fac -Ir(dfpp) 3, fac-Ir(ppy) 2 (acac) and FIrpic, are studied using the density functional theory, where dfpp = 2-(2,4-difluorophenyl)pyridine, acac =acetylacetonate, pic =picolinic acid and fac ǫ=facial.

TL;DR: In this article, the authors compared two different immunosensors developed for important food analytical and environmental problems: piezoelectric quartz crystal microbalance measurement (QCM) and optical waveguide lightmode spectroscopy (OWLS).

TL;DR: In this article, a template-assisted replication of submicrometer-size polystyrene spheres as templates was used to synthesize hollow macroporous core-mesoporous shell.

TL;DR: In this paper, the growth of radial cracks was found to be dependent on the orientation of ferroelectric domains with respect to the poling direction, which affected the K IC values.

TL;DR: In this paper, nano-sized ZnO powders were synthesized by thermal decomposition of zinc acetate and Broussonetia papyrifera (L.) vent pulp.

TL;DR: In this paper, a conventional (hot isostatic pressing) and a novel sintering method (spark plasma Sintering) have been applied to perform multi-wall carbon nanotube reinforced silicon nitride composites.

TL;DR: In this paper, polyaniline (PANI) coatings were synthesized on stainless steel electrode by applying two different scan rates (10 and 50mV−s−1) in 0.1m aniline containing 0.3m oxalic acid solution.

TL;DR: In this paper, a femtogram mass detection using a piezoresistive microcantilever has been studied for bioscience applications by employing the resonance frequency shift of a cantilever.

TL;DR: In this article, the current development status of nanostructured thermal spray coatings is presented, mainly based on the results of the authors, which clearly demonstrate that the significant improvement in coating performance can be achieved by utilizing proper nan-structured coatings.

TL;DR: In this paper, BNNTs are synthesized by the arc-jet plasma of high temperature, which is generated by a dc non-transferred plasma torch with a mixture of argon and nitrogen gas.

TL;DR: In this article, the preparation conditions of nano-size cationically charged particles (TiO2) were studied for application to electrophoretic display, and it was found that highly charged TiO2 particles could be prepared by milling 1.0 ǫg of particles, 0.5 g of silane additive as a charge controlling agent and 0.4 g of acetic acid.

TL;DR: In this paper, the UV protection mechanism of the high altitude flower Edelweiss has been investigated and the protection mechanism is based on coupling by nanostructured, highly selective couplers the harmful UV radiation in propagating modes along fibers containing UV absorbing pigment.

TL;DR: In this paper, mesoporous tungsten trioxide (WO 3 ) films were deposited on ITO-glass by continuous, cathodic electrodeposition, and the surface morphology and the structure of the films were characterized by X-ray diffraction, SEM, TEM, and cyclic voltammetry for the hydrogen intercalation reaction.

TL;DR: In this article, a modified titanium dioxide (TiO2) with appropriate characteristics of high refractivity and excellent whiteness, was modified via a coating process with poly(methyl methacrylate) in order to reduce density mismatch between TiO2 and dielectric medium, to obtain good dispersion stability.

TL;DR: In this paper, Zirconium sulphophenyl phosphate (ZrSPP) particles were used as a solid proton conductor and hygroscopic material to extend the proton conductivity of Nafion.

TL;DR: In this article, the effect of multiple impulse voltages on the electrical and physical properties of a zinc oxide (ZnO) varistor was investigated and the multiple combination wave generator can produce quintuple 1.2/50μs and 8/20μs impulse currents.