The effects of Cu-doping and heat-treatment on the structure and magnetic properties of ô-MnAl have been investigated. Copper stabilizes the structure of ô-MnAl and enhances the fraction of ô-phase while excess Cu (≥9 atm%) results in the formation of more ã- and/or â-phase. In c...
Open access
Research Article10.9734/PSIJ/2014/5326
The optimum length of extended surfaces with uniform cross sectional area has been analyzed numerically, based on the concept of entropy generation minimization. The extended surface studied is a pin fin. The rate of entropy generation is investigated for different boundary condi...
Open access
Research Article10.9734/PSIJ/2014/5157
Hot air plasma is generated inside a 2.45GHz microwave resonant cavity and is ejected towards a gas conditioning cell at 600 mbar. A flow of 12 liter/min of dry air with a small amount of H2, in order to better detect OH (A-X) spectra for gas temperature measurements, is injected...
Open access
Research Article10.9734/PSIJ/2014/6986
Theoretical formalism using vectorial Rayleigh diffraction integrals is developed to calculate the electric field components Ex, Ey, Ez of generalized vector-vortex (VV) beams of different phase and polarization characteristics as a function of propagation distance ‘z’ in the foc...
Open access
Research Article10.9734/PSIJ/2014/6718
The aim of this study is to show that geometric phase is a consequence of curvature in non-Euclidean geometries being related to the areas of spherical and hyperbolic triangles. In hyperbolic geometry it is well-known that the angular deficit of a hyperbolic triangle is related t...
Open access
Research Article10.9734/PSIJ/2014/6837
Tungsten oxide layers are important structures in gasochromic and optical hydrogen sensing devices. In the present study, these layers were constructed using the sol-gel method and spin-coating deposition technique. layers were coated with palladium using the same method to inve...
Open access
Research Article10.9734/PSIJ/2014/5663
Ion nanobeams are used to write data bits of nanometer diameter into storage materials and photon near-field technology is employed to read this novel kind of digital memory.
Open access
Research Article10.9734/PSIJ/2014/6711
The advection diffusion equation (ADE) is solved in two directions to obtain the crosswind integrated concentration. The solution we used Laplace transformation technique and considering the wind speed depends on the vertical height and eddy diffusivity depends on downwind and ve...
Open access
Research Article10.9734/PSIJ/2014/5866
The results obtained in [(1; 2)] for the statistical distributions at studying algebra of decision rules and natural geometry generated by it, are applied to estimations of the nonequilibrium statistical operator and superstatistics. The expressions for the nonequilibrium statist...
Open access
Research Article10.9734/PSIJ/2014/3910
Electrical machines are critical components in industrial processes. A motor failure may yield an unexpected interruption at the industrial plant, with consequences in costs, product quality, and safety. To determine the conditions of each part of motor, various testing and monit...
Open access
Research Article10.9734/PSIJ/2014/4837