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International Journal of Physical Sciences    Follow    
  This is an Open Access Journal Open Access journal
     ISSN (Print) 1992-1950
     Published by Academic Journals Homepage  [73 journals]
  • A four-point fully implicit method for the numerical integration of
           third-order ordinary differential equations
    • Abstract: In this paper, we derived a continuous linear multistep method (LMM) with step number k = 4 through collocation and interpolation techniques using power series as basis function for approximate solution. An order-seven scheme is developed which was used to solve the third-order initial value problems (IVPS) in ordinary differential equation without first reducing to a system first-order. Tay...
      PubDate: Tue, 28 Jan 2014 00:00:00 +010
       
  • Study of optical constants in Se- In –Pb thin films of chalcogenide
           glasses
    • Abstract: Bulk glasses of Se75 In25-x Pbx (when n = 0, 4, 6, 10) systems and thin films have been prepared by the conventional melt quenching technique and by thermal evaporation technique, respectively. The optical constants (absorption coefficient (α), refractive index (n), extinction coefficient (k)) have been studied for Se-In-Pb thin films as a function of photon energy in the wavelength range (3...
      PubDate: Tue, 28 Jan 2014 00:00:00 +010
       
  • Application of vertical electrical soundings to characterize aquifer
           potential in Ota, Southwestern Nigeria
    • Abstract: A knowledge of hydrogeophysical parameters of aquifers is essential for groundwater  resource assessment, development and management. Traditionally, these parameters are estimated using pumping test carried out in boreholes or wells; but this is often costly and time consuming. Surface geophysical measurements can provide a cost effective and efficient estimates of these parameters. In the p...
      PubDate: Mon, 16 Dec 2013 00:00:00 +010
       
  • The application of some biodiversity indices in the Tortum Stream,
           Erzurum, Turkey
    • Abstract: The aim of the present study was to investigate biodiversity index, dominancy index and equivalence index of diatom community in the Tortum Stream and its tributaries. Diatom samples were collected from nine stations on the main river and tributaries between July 2012 and May 2013. A total of 36 taxa of Bacillariophyceae were identified. Dominant species was Cocconeis placentula in all stati...
      PubDate: Mon, 16 Dec 2013 00:00:00 +010
       
  • Determination of some physical and mechanical properties of Calabrian pine
           (Pinus brutia Ten.) trees grown in the Denizli area of Turkey
    • Abstract: The most extensive distribution of Calabrian pine (Pinus brutia Ten.) trees in the world is found in Turkey. This species varies depending on the regions in Turkey for growth features, such as climate, soil structure and slope. In this study, the technological properties of Calabrian pine (Pinus brutia Ten.) grown in the Denizli area were studied. Within the scope of the study, their physica...
      PubDate: Mon, 16 Dec 2013 00:00:00 +010
       
  • Discrete singular convolution for Lennard-Jones potential using Shannon
           kernel
    • Abstract: In this paper, the idea of discrete singular convolution (DSC) as a viable computation method for analyzing physical systems has been underlined. Discrete singular convolution has been used for solving the Schrödinger equation for water molecules, subject to the Lennard Jones potential, and the DSC differentiator has been used for obtaining the energy eigen-states of water, for a given grid ...
      PubDate: Thu, 12 Dec 2013 00:00:00 +010
       
  • Heavy metal concentration in soil of some mechanic workshops of
           Zaria-Nigeria
    • Abstract: This research paper investigated the elemental composition of soil samples from four selected mechanic workshops in Zaria. A total of eight samples were analyzed at Centre for Energy Research and Training (CERT) Ahmadu Bello University Zaria using standardless X-Ray Fluorescence spectroscopy (XRF). From the result, it was found that Silicon (Si) has the highest mean concentration ranging fro...
      PubDate: Thu, 12 Dec 2013 00:00:00 +010
       
  • An appraisal of the water related contaminants as they affect the
           environment around the Enugu coal mines of Enugu state, southeastern
           Nigeria
    • Abstract: Enugu metropolis is within the Anambra basin, which comprises mainly sedimentary rocks of sandstone, siltstone, mudstone and shales in the Lower Benue trough and as the capital of Enugu state in Nigeria and also as one of the major municipal and industrial centers in southeastern Nigeria experiences much groundwater contamination due to coal mining activity. The Area is richly endowed with s...
      PubDate: Thu, 12 Dec 2013 00:00:00 +010
       
  • Evaluation of noise reduction in a cigarette factory, China
    • Abstract: Millions of workers are exposed to occupational noise that increases their risk of hearing impairment and evidence on the effectiveness of precaution is lacking. This study was undertaken to assess the effect of noise control strategy in a cigarette factory in China. We chose the representative points in the unit, monitored the noise level and analyzed frequency spectrum at the same workplac...
      PubDate: Thu, 12 Dec 2013 00:00:00 +010
       
  • Numerical solution for a class of singular integral equations
    • Abstract: This paper is concerned with finding approximate solution for the singular integral equations. Relating the singular integrals to Cauchy principal-value integrals, we expand the kernel and the density function of singular integral equation by the sum of the chebyshev polynomials of the first, second, third and fourth kinds. Some numerical examples are presented to illustrate the accuracy and...
      PubDate: Mon, 09 Dec 2013 00:00:00 +010
       
 
 
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