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Journal Cover International Journal of Physical Sciences
  [SJR: 0.15]   [H-I: 17]   [0 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 1992-1950
   Published by Academic Journals Homepage  [108 journals]
  • Development of an identity management system for a web proxy server in a
           tertiary institution using anonymity technology

    • Abstract: The inability of a region to access a webpage, because of the ban being placed on users from that region as a result of its location policy, has led to this study. This problem is often solved by anonymizing web traffic by using The Onion Router (TOR). These tools, however, suffer from the problem of exposure of identity and also lack the ability to monitor web users. This study describes in...
      PubDate: Sat, 16 Jul 2016 00:00:00 +010
       
  • Light source estimation using feature points from specular highlights and
           cast shadows

    • Abstract: A method for light sources estimation is proposed in this paper. The method utilizes feature points in cast shadows to estimate near light source positions from estimated source directions using specular highlights. There are several methods that can be used to estimate light sources from scene images, using either cast shadows or specular highlights. However, most of them are limited to dir...
      PubDate: Sat, 16 Jul 2016 00:00:00 +010
       
  • Geometric phases for two-mode squeezed vacuum state

    • Abstract: Although the geometric phase for one-mode squeezed state had been studied in detail, the counterpart for two-mode squeezed state is vacant. In this paper, we aim at the special case, namely, two-mode squeezed vacuum state. Furthermore, the total phase factor is to be written in an elegant form, which is just identical to one term of product of two squeezed operators. In addition, when this s...
      PubDate: Thu, 30 Jun 2016 00:00:00 +010
       
  • Preliminary structural evaluation of an X-Field Onshore Niger Delta using
           3D seismic data

    • Abstract: A structural evaluation of a post stack time migrated (PSTM) 3D seismic data over an XField in the eastern Niger Delta has been attempted. The objective of the study is to structurally evaluate the field with a view to identifying structural features such as faults, map geologic horizons and analyze reflection characteristics that might be a good lead to probable hydrocarbon accumulations. R...
      PubDate: Thu, 30 Jun 2016 00:00:00 +010
       
  • Matter-antimatter models in cosmic and biologic systems

    • Abstract: The leading theories suggest that in the first fractions of the second following the Big Bang, equal amounts of matter and antimatter were formed, and annihilated. Therefore, theasymmetry of matter and antimatter, and formation of the visible universeis one of the major unsolved problems in physics. Surprisingly, when the major characteristics of the cosmic matter- antimatter interactions, w...
      PubDate: Thu, 16 Jun 2016 00:00:00 +010
       
  • Determination of the characteristic parameters for the modified
           Bessel-Gauss beams

    • Abstract: Some characteristic parameters of the Bessel- Gaussian beam were determined theoretically by direct analytical calculations. Variation of the final beam radius () with the starting beam radius (o) was studied. The Rayleigh range of a Bessel-Gauss beam was calculated for each value of the minimum starting beam radius. The beam wavefront radius of curvature (R) was calculated as a function of ...
      PubDate: Thu, 16 Jun 2016 00:00:00 +010
       
  • Direct method for solving nonlinear strain wave equation in microstructure
           solids

    • Abstract: The modeling of wave propagation in microstructure materials should be able to account for the various scales of microstructure. In this paper, the extended trial equation method was modified to construct the traveling wave solutions of the strain wave equation in microstructure solid. Some new different kinds of traveling wave solutions was gotten as, hyperbolic functions, trigonometric fun...
      PubDate: Mon, 30 May 2016 00:00:00 +010
       
  • Solar flare effects (SFE) on geomagnetic fields across latitudes

    • Abstract: A comprehensive study of Solar Flare Effects (SFE) across latitudes has been carried out using an extensive data set of two geomagnetic elements H and Z selected from 1997 to 2005. The X (intense) and M (medium) solar flares were examined under quiet conditions. Nine stations extending from equatorial to high latitudes were used in the study. Data employed in this work include minute data of...
      PubDate: Mon, 16 May 2016 00:00:00 +010
       
  • Slip flow of a second grade fluid past a lubricated rotating disc

    • Abstract: Slip flow of a second-grade fluid past a lubricated rotating disc is studied. The disc is lubricated with a power-law fluid. The interfacial conditions between fluid and lubricant are imposed on the surface of disc by assuming a thin lubrication layer. The numerical solutions are obtained using Keller-Box method. The effects of slip parameter and Weissenberg number on the three components of...
      PubDate: Sat, 30 Apr 2016 00:00:00 +010
       
  • Purity-performance relationship of anthocyanidins as sensitizer in
           dye-sensitized solar cells

    • Abstract: A comparative analysis between crude and purified extracts obtained from withered leaves of Terminalia catappa (T. catappa) and pure compounds of anthocyanidins as organic sensitizers in solar cells. The chemical and electronic properties of the extracts and the pure anthocyanidins were examined using spectroscopic studies: ultraviolet (UV), Fourier transform infrared (FT-IR) and gas chromat...
      PubDate: Sat, 30 Apr 2016 00:00:00 +010
       
 
 
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