It is known that the radiation emitted by the accretion disk of supermassive black hole can heat up the surrounding gas in the protogalaxy. If the gas particles are in hydrostatic equilibrium during the galaxy formation and the cooling of the protogalaxy is mainly driven by the g...
Open access
Research Article10.9734/PSIJ/2014/12867
This article is devoted to treating of non-wave, i.e. instanton solution for the Maxwell-Einstein equations. Equations for the field of instanton and metric are derived. Metric of pseudo-Euclid space which is corresponding to transition between degenerate classical vacua of probl...
Open access
Research Article10.9734/PSIJ/2014/12654
We investigate the electron ground state energy, the first excited energy and the electron density of probability within the effective-mass approximation for a finite strain elliptical wire. A magnetic field is applied perpendicular to the wire axis. The results are obtained by d...
Open access
Research Article10.9734/PSIJ/2014/12576
Steady, laminar, incompressible and fully developed fluid flow of two immiscible electrically conducting fluids between two infinite inclined parallel plates has been studied when the two plates are maintained at different constant temperatures T_w1 and T_w2. A constant magnetic...
Open access
Research Article10.9734/PSIJ/2014/11471
The present study investigated the corrosion inhibition of Al alloy in 0.75 M KOH solution at room temperature using X. aethiopica seed extract. Gravimetric technique was employed in the study. It was revealed that the presence of the spice extract in the test solution retards th...
Open access
Research Article10.9734/PSIJ/2014/9928
Image contents play a vital role in various images. In this paper, genetic algorithm has been investigated for the content enhancement of the natural images. The algorithm was effective as the contents of the images became clear with the successive iterations. The algorithm was a...
Open access
Research Article10.9734/PSIJ/2014/6891
Radiation defect formation processes in silicon crystals for the cases when concentrations of electrical non-active impurities (oxygen, carbon) prevail over main impurities determining silicon conductivity, are being covered in this paper. The role of interstitial atoms and vacan...
Open access
Research Article10.9734/PSIJ/2014/11458
Optical communication systems are since the last 25 years the backbone of all international data and telecom communications. Up to now, more than 10 TBit/s can be distributed via one optical fiber in long-haul systems. This was realized by the use of highly parallel multi-channel...
Open access
Research Article10.9734/PSIJ/2014/10978
The first measure one usually comes into contact with in undergraduate mathematical studies is the Lebesgue measure and seeing how it is applied to the Lebesgue integral to extend considerably the Riemann integral, it doesn’t take very much else to arouse one’s interest in the st...
Open access
Research Article10.9734/PSIJ/2014/10668
The uncontrolled urban spread (urban sprawl) has both positive and negative implications. The adverse effects are more pronounced than its gains. Among others adverse effects is infrastructure provision (such as roads, etc.) which usually becomes a problem. This work examines the...
Open access
Research Article10.9734/PSIJ/2014/9211