Search
Now showing items 11-20 of 1037
Dynamical Elastic Moduli of the Ti-13Nb-13Zr biomaterial alloy by mechanical spectroscopy
(Materials Research, 2012-12-01) [Artigo]
Dynamical Elastic Moduli of the Ti-13Nb-13Zr biomaterial alloy were obtained using the mechanical spectroscopy technique. The sample with heat treatment at 1170K for 30 minutes and water quenched with subsequent aging ...
Anelastic characterization and superconducting properties of RuSr2GdCu2O8+delta
(Boletin de la Sociedad Espanola de Ceramica y Vidrio, 2008-07-01) [Artigo]
Since the discovery of the high Tc superconductors, many researches have been carried out on the different properties of these materials, especially oil the transition temperature into the superconducting state. The ...
Determination of the oxygen and nitrogen interstitial diffusion coeficient in niobium by mechanical spectroscopy
(Materials Research, 2006-12-01) [Artigo]
Mechanical spectroscopy measurements have been extensively used in the last decades to obtain information about many aspects of the behavior of solutes in metallic materials. Metals of body-centered cubic lattice that ...
Electrically detected and conventional magnetic resonance investigation of surface and bulk states in polyaniline thin films
(Journal of Applied Physics, 2007-04-15) [Artigo]
Electrically detected magnetic resonance (EDMR) and electron paramagnetic resonance (EPR) were used to investigate emeraldine base polyaniline films. The magnetic susceptibility presented a Curie (localized spins)-Pauli ...
Structural and vibrational analysis of nanocrystalline Ga1-xMnxN films deposited by reactive magnetron sputtering
(Journal of Applied Physics, 2007-09-15) [Artigo]
The structural and vibrational properties of nanocrystalline Ga1-xMnxN films deposited by reactive magnetron sputtering were analyzed in a wide composition range (0 < x < 0.18). The films were structurally characterized ...
In Vitro Cytotoxicity of a Ti-35Nb-7Zr-5Ta Alloy Doped with Different Oxygen Contents
(Materials, 2014-03-01) [Artigo]
Cp-Ti is the most common material used for dental implants, but its elastic modulus is around five times higher than that of bone. Recently, promising alloys that add Nb, Ta, Zr and Mo to Ti have been developed. The ...
Stoichiometry unbalance and photoluminescence emission in Ga1-XAsX films prepared by flash evaporation
(Journal of Non-Crystalline Solids, 2004-06-15) [Artigo]
Both narrow and broad photoluminescence bands were observed in Ga1-XAsX films prepared by flash evaporation of polycrystalline GaAs containing native C impurities. The observed narrow crystalline-like bands are similar to ...
Depairing critical current density of a mesoscopic square superconductor
(Brazilian Journal of Physics, 2004-09-01) [Artigo]
In the present paper we consider the vortex lattice properties of a square superconductor such as the vortex patterns, the Gibbs free energy, the magnetization, and the depairing critical current density. We show that this ...
A comparison about evolutionary algorithms for optimum-path forest clustering optimization
(Journal of Information Assurance and Security, 2013) [Artigo]
In this paper we deal with the problem of boosting the Optimum-Path Forest (OPF) clustering approach using evolutionary-based optimization techniques. As the OPF classifier performs an exhaustive search to find out the ...
A critical investigation of the Tanford-Kirkwood scheme by means of Monte Carlo simulations
(Protein Science, 2001-07-01) [Artigo]
Monte Carlo simulations are used to assess the adequacy of the Tanford-Kirkwood prescription for electrostatic interactions in macromolecules. Within a continuum dielectric framework, the approach accurately describes salt ...