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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]
  • Analytical and numerical study of a pulsatile flow in presence of a
           magnetic field

    • Abstract: This paper deals with the effects of magnetic field on heat transfer in a pulsatile flow. A mathematical model is developed to investigate the impact of magnetic field on the velocity and the temperature distributions between two concentric ducts. Finite differences method is used in order to solve the dimensionless governing equations, and implicit schemes for velocity and temperature are o...
      PubDate: Wed, 30 Dec 2015 00:00:00 +010
       
  • Gravitational effect on surface waves in a homogeneous fibre-reinforced
           anisotropic general viscoelastic media of higher and fractional order with
           voids

    • Abstract: In this paper, gravitational effects on propagation of surface waves in a homogeneous fibre-reinforced anisotropic general viscoelastic media of higher order with voids is investigated. The general surface wave speed is derived to study the effects of gravity on surface waves. Particular cases for Stoneley and Rayleigh waves are discussed. The results obtained in this investigation are more ...
      PubDate: Wed, 30 Dec 2015 00:00:00 +010
       
  • Influence of etching on the optical properties of a-plane-oriented ZnO
           epilayers grown by plasma-assisted molecular beam epitaxy

    • Abstract: A-plane-oriented ZnO epilayers grown by plasma-assisted molecular beam epitaxy were studied with respect to their optical properties. 10K-photoluminescence (PL) and reflectivity were used to analyze various 2 m-thick ZnO films etched at different etching profile. The PL spectra show the band emission of the structures become narrower when the etching profile increase. At 0.75 m etching profi...
      PubDate: Wed, 16 Dec 2015 00:00:00 +010
       
  • Dark energy and gravity: Reconsidering Newton’s law of universal
           gravitation

    • Abstract: In many theories of gravity, the cause of gravity is neither mentioned nor clarified yet. Dark energy, which makes the universe accelerate and push all matters in the universe apart, has repulsive power. Every matter in space is equally pressured by this repulsive force from all directions. It is assumed that this force comes from infinity in space. However, if matters exist nearby, the matt...
      PubDate: Mon, 30 Nov 2015 00:00:00 +010
       
  • On solar wind speed distribution and geomagnetic activity during solar
           cycle 23 and the early ascending phase of solar cycle 24

    • Abstract: This paper investigates solar wind repartition through four classes of solar events: (1) one class of quiet days (QD) caused by slow solar wind (V 450 km/s), and three disturbed activities, where V 450 km/s, (2) recurrent wind (RW), (3) shock wind (SW), (4) fluctuating wind (FW). RW class is characterized by recurrent high solar wind extended on several solar rotations. SW class is caused b...
      PubDate: Mon, 16 Nov 2015 00:00:00 +010
       
  • Polylactic acid (PLA) viscoelastic properties and their degradation
           compared with those of polyethylene

    • Abstract: Polyethylene (PE) films are widely used in packaging. PE is a thermoplastic manufactured from nonrenewable petroleum resources. Due to its nonbiodegradability, its films have posed serious pollution problems e.g. visual pollution, blockage of gutters and drains, choking of animals etc. Suitable replacements for PE films especially for single use only, are the starch based thermoplastics such...
      PubDate: Mon, 16 Nov 2015 00:00:00 +010
       
  • A statistical analysis of Lorentz invariance in entropy

    • Abstract: After relativity was introduced by Einstein in 1905, several attempts were made to reformulate the other fields of physics to make them consistent with the postulates of Relativity. However, relativistic reformulation remains a bone of contention even today after over a hundred years since Einsteins epoch making papers. This is mainly due to seemingly conflicting yet consistent ways of defin...
      PubDate: Fri, 30 Oct 2015 00:00:00 +010
       
  • A study of structural, optical and dielectric properties of Eu2O3 doped
           borate glass

    • Abstract: Recent technological applications have generated more interest in the studies of different types of glasses. The wide applications of glasses take place due to their interesting properties such as low thermal expansion, high softening temperature, high resistance to chemical attack, high refractive index with low dispersion and mechanical strength. Eu2O3 doped borate glasses were successfull...
      PubDate: Fri, 30 Oct 2015 00:00:00 +010
       
  • Crystal size effect on the photoluminescence of calcium aluminate doped
           Mn2+ nanocrystals

    • Abstract: Research into finding environmentally friendly, efficient and economic viable nanophosphors is still ongoing as the incorporation of radioactive substances into phosphors to improve their short time luminescence poses serious environmental concern. The present paper investigates the effect of particle size on the, morphology and photoluminescence of environmentally friendly CaAl2O4: Mn2+ nan...
      PubDate: Fri, 16 Oct 2015 00:00:00 +010
       
  • Hydrothermal synthesis and structural characterization of an
           organically-templated open-framework trimolybdates

    • Abstract: A new one-dimensional coordination polymer formulated as [C2H10N2] [Mo3O10], 1, has been synthesized under hydrothermal conditions in the presence of ethylenediamine. The surface morphology of the as-synthesized product reveals colorless rod-like single crystals of 1. The compound crystallizes in monoclinic space group P21/n with a = 8.08 , b =14.39 , c = 8.89 ; = 97.76, V = 1033.65(12) 3, ...
      PubDate: Fri, 16 Oct 2015 00:00:00 +010
       
 
 
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