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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  [72 journals]
  • 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
  • Analysis of elastic scattering data below, atop and above the delta
           resonance using inverse scattering theory

    • Abstract: The simple local optical potential adopted in analyzing successfully elastic scattering data in the delta resonance region has been emphasized here. This is based on obtaining the same nature for the potential by extracting potential points from available phase shifts at 114, 163, 240 and 340 MeV using inverse scattering theory within the framework of Klein-Gordon equation. Luckily, and as e...
      PubDate: Sat, 16 Apr 2016 00:00:00 +010
  • Dielectric study of calcium doped barium titanate Ba1-xCaxTiO3 ceramics

    • Abstract: Calcium doping effect on the ferroelectric properties of Ba1-xCaxTiO3: BCTx (x = 0.01, 0.05, 0.1) ceramic material prepared via the sol-gel process was studied. X-ray diffraction (XRD) showed that the powders of calcined BCTx at 900C crystallize in a pure phase of perovskite type without secondary phases. Microstructural morphology was analyzed by Scanning Electronic Microscopy (SEM). Dielec...
      PubDate: Wed, 30 Mar 2016 00:00:00 +010
  • A new solitary wave solution of the perturbed nonlinear Schrodinger
           equation using a Riccati-Bernoulli Sub-ODE method

    • Abstract: The Riccati-Bernoulli Sub-ODE method is used for the first time to investigate exact wave solution of the perturbed nonlinear Schrodinger equation with Kerr law non linearity which describes the propagation of optical solitons in nonlinear optical fibers that exhibits a Kerr law non linearity. An infinite sequence of exact solutions can be obtained according to Backlund transformation. The p...
      PubDate: Wed, 30 Mar 2016 00:00:00 +010
  • Space charge kinetic treatment in Langmuir probes with cylindrical

    • Abstract: In this paper, an analysis of the space charge build up in the interelectrodic region of a velocity analyzer with cylindrical symmetry is performed using kinetic theory. Thus the present treatment includes temperature effects. Azimuth symmetry is also assumed. A detailed and comparative analysis, between planar and cylindrical electrodes, is carried out, showing the advantages of each kind o...
      PubDate: Wed, 16 Mar 2016 00:00:00 +010
  • Investigating H and Z geomagnetic component disturbance field in the

    • Abstract: The relationship in the variations of geomagnetic horizontal component (H) and vertical component (Z) in Boulder station (40.1N, 254.8) has been investigated. In the analysis, series of significant changes in amplitude and period are observed in H as well as in Z during the day-time. The changes in H and Z for the average yearly diurnal variations and for the monthly variations do not exhibi...
      PubDate: Wed, 16 Mar 2016 00:00:00 +010
  • Biodegradation with heterogeneous catalyst in the production of biogas
           from wheat wastes, rice husk and spent grains

    • Abstract: Biodegradation with heterogeneous catalysts were successfully carried out in the production of biogas from wheat wastes, rice husk and spent grains. Five digesters were charged with spent grains/clay soil, spent grains/lime stone, rice husk/clay soil, rice husk/lime stone and wheat wastes/potash, respectively. Clay soil, limestone and potash were used as catalysts for optimizing and to speed...
      PubDate: Mon, 29 Feb 2016 00:00:00 +010
  • Empirical model for estimation of global radiation from sunshine duration
           of Ijebu-Ode

    • Abstract: Empirical models to estimate global solar radiation require the development of a set of equations that relate it to other meteorological parameters and from the monthly average daily value of clearness index and relative sunshine spanning of a period of 5 years, the Angstrom- Prescott model was developed for the estimation of global solar radiation of Ijebu-Ode (Lat. 6.81⁰N. Long. 3.92⁰E), a...
      PubDate: Tue, 16 Feb 2016 00:00:00 +010
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