In this paper the current density J(r) and safety factor q(r), profiles are obtained for circular cross section HT-7 tokomak. For this purpose discrete poloidal magnetic probes along with the diamagnetic loop can be utilized for the measurement. Here Plasma internal inductance i...
Open access
Research Article10.9734/PSIJ/2014/8138
Within the potential cluster model with the forbidden states and an orbital states classification according to the Young diagrams the possibility of description of experimental data for the total cross-sections of radiative neutron capture by 15N at energies from 25 to 370 keV wa...
Open access
Research Article10.9734/PSIJ/2014/6753
Aim: A geoelectric investigation of the subsurface layering of some locations in the Ibrahim Badamasi Babangida University, Lapai was carried out using the Schlumberger vertical electrical sounding (VES) method with a view to determining the depth of aquifer for groundwater devel...
Open access
Research Article10.9734/PSIJ/2014/6199
The nonlinear propagation of dust ion acoustic (DIA) waves in an unmagnetized collisionless degenerate dense plasma (containing degenerate electron, positron, and ion fluids) have been theoretically investigated. The Burgers’ equation has been derived by employing the reductive p...
Open access
Research Article10.9734/PSIJ/2014/3360
The behaviour of a system of two two-level atoms, both identical as well as non-identical, under the influence of a continuously varying dipole-dipole coupling parameter for a wide range of other parameters such as the atomic level separations and the coupling strength of the ext...
Open access
Research Article10.9734/PSIJ/2014/7448
The Jeans instability of infinite homogeneous plasma has been investigated in the presence of magnetic field considering the effect of radiative heat-loss function and quantum correction. In the present approach, it is initiated that the criterion of Jeans instability is modified...
Open access
Research Article10.9734/PSIJ/2014/4820
Nonlinear waves have been an important subject in the field of astroplasmas under the action of Coriolis force because of rotation could be the progenitor of many heuristic feature on waves. Our main interest is to study the nonlinear ion-acoustic wave in a rotating plasma. Pseud...
Open access
Research Article10.9734/PSIJ/2014/3746
We compare two ways of calculating the optical response of metallic nanoparticles illuminated by near field dipole sources. We develop tests to determine the accuracy of the calculations of internal and scattered fields of metallic nanoparticles at the boundary of the particles a...
Open access
Research Article10.9734/PSIJ/2014/7549
The symmetry studies of Maxwell equations gave new insight on the nature of electromagnetic (EM) field. They are reviewed in the work presented. It is drawing the attention on the following aspects. EM-field has in general case quaternion structure, consisting of four independent...
Open access
Research Article10.9734/PSIJ/2014/5930
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