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Journal Cover International Journal of Physical Sciences
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  This is an Open Access Journal Open Access journal
     ISSN (Print) 1992-1950
     Published by Academic Journals Homepage  [73 journals]
  • Effect of an axial magnetic field on the heat and mass transfer in
           rotating annulus

    • Abstract: This study is interested in the effect of an axial magnetic field imposed on incompressible flow of electrically conductive fluid between two horizontal coaxial cylinders. The imposed magnetic field is assumed uniform and constant. The effect of heat generation due to viscous dissipation is also taken into account. The inner and outer cylinders are maintained at different uniform temperature...
      PubDate: Sat, 30 Aug 2014 00:00:00 +010
       
  • Study of miscibility of liquid mixtures with a critical point: A new
           experiment for a physical chemistry course

    • Abstract: This paper describes a new experiment for undergraduate students in physical chemistry. This experiment describes a separation process of liquid-liquid extraction using mixtures with a critical point of miscibility. In this experiment, students will learn how to measure solute concentration, and a new liquid-liquid extraction technique that we called Phase Transition Extraction (PTE). In thi...
      PubDate: Sat, 30 Aug 2014 00:00:00 +010
       
  • Electrical properties and crystal structure of Y123, Y358 and Y257/Y211
           composite bulk superconductors

    • Abstract: The Y123, Y358 and Y257 bulk superconductors mixed with various ratio of non-superconducting Y211 (Y2BaCuO5) were synthesized by solid state reaction. The physical properties of pellets were investigated by d.c. four-probes measurement. The crystal structure was determined using powder X-ray diffraction and the characteristic peaks were determined using the Rietveld full-profile analysis met...
      PubDate: Sat, 30 Aug 2014 00:00:00 +010
       
  • Some classifications on Kenmotsu manifolds

    • Abstract: In this paper, we investigate some curvature problems of Kenmotsu manifolds satisfying some certain conditions and we reach some classicifications. We consider -recurrent Kenmotsu manifolds and we show that -recurrent Kenmotsu manifolds are also -Einstein manifolds. Next, we study  -Ricci symmetric Kenmotsu manifolds and we find this manifolds are Einstein manifolds too. In addition, we exam...
      PubDate: Sat, 16 Aug 2014 00:00:00 +010
       
  • Analysis and evaluation of differential inductive transducers for
           transforming physical parameters into usable output frequency signal

    • Abstract: This paper presents a novel hybrid oscillating inductive sensor circuit converting deflection oscillations into useful signal and thus being used to support an oscillatory circuit mechanism and management of their resulting oscillation in a real-time implementation. This circuit does not only detects and optimizes the deflections produced in an oscillation in instrumentation electronics, but...
      PubDate: Sat, 16 Aug 2014 00:00:00 +010
       
  • Internuclear forces: Physical and chemical reasons

    • Abstract: The arguments, obtained in favor of the hypothesis on internuclear interaction of atoms (offered by author in the preceding publication), are presented. It is proposed an interpretation of physical phenomenon Bragg peak, which is discovered 100 years ago but is not understood hitherto. An extremely simple and natural explanation of chemical covalent bond (which unlikely may be considered sat...
      PubDate: Wed, 30 Jul 2014 00:00:00 +010
       
  • Magnetohydrodynamics (MHD) boundary layer stagnation point flow with
           

    • Abstract: This paper is an investigation of the effects of chemical reaction on two dimensional steady stagnation point flow of an electrically conducting, incompressible, and viscous fluid with radiation towards a heated shrinking porous surface. A chemically reactive species is emitted from the vertical surface into the flow field. The governing partial differential equations are solved using the Ne...
      PubDate: Wed, 30 Jul 2014 00:00:00 +010
       
  • Optimal transformer allocation in electrical distribution using genetic
           algorithm

    • Abstract: The optimization of transformers allocation is a major challenge to the operators of electrical energy distribution in several developing countries. In this research, a Generic Algorithm model for the optimization of transformer allocation in electrical distribution networks is developed. The algorithm employed the principles of selection, crossover and mutation to allocate transformers of d...
      PubDate: Wed, 30 Jul 2014 00:00:00 +010
       
  • Optical observation of streamer propagation and breakdown in seed based
           insulating oil under impulse voltages

    • Abstract: Increasing demand of electricity and high consumption of natural fuel resources has raised countless challenges for the electricity industry. For years, transformers were equipped with mineral oil for better and lasting performance but the recent uncertainty about the future of oil availability is motivating the researchers to find out the “Green Insulating Oils” for transformers. Thus, gree...
      PubDate: Wed, 16 Jul 2014 00:00:00 +010
       
  • An efficient technique for morphing zero-genus 3D objects

    • Abstract: In this paper, we present an algorithm to morph a zero-genus mesh model to a topologically equivalent one based on spherical parameterization, as it is the natural parameterization method for this kind of objects. Our algorithm starts by normalizing the two objects to the cube of unity, as a preprocessing step. Then, the two normalized models are parameterized onto a common spherical domain....
      PubDate: Wed, 16 Jul 2014 00:00:00 +010
       
 
 
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