American Journal of Applied Mathematics

Volume 3, Issue 2, April 2015

  • A Strategy for Solving the Non Symmetries Arising in Nonlinear Consolidation of Partially Saturated Soils

    Héctor Ariel Di Rado, Pablo Alejandro Beneyto, Javier Luis Mroginski, Juan Emilio Manzolillo

    Issue: Volume 3, Issue 2, April 2015
    Pages: 31-35
    Received: 7 January 2015
    Accepted: 28 January 2015
    Published: 2 February 2015
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    Abstract: The main scope of this paper is to present an alternative to tackle the problem of the non symmetries arising in the solution of the nonlinear couple consolidation problem based on a combination of different stress states. Being originally a non symmetric problem, it may be straightforward reduced to a symmetric one, and the conditions in which thi... Show More
  • Mathematical Modelling of Endemic Malaria Transmission

    Abadi Abay Gebremeskel, Harald Elias Krogstad

    Issue: Volume 3, Issue 2, April 2015
    Pages: 36-46
    Received: 10 January 2015
    Accepted: 6 February 2015
    Published: 13 February 2015
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    Abstract: Malaria is an infectious disease caused by the Plasmodium parasite and transmitted between humans through bites of female Anopheles mosquitoes. A mathematical model describes the dynamics of malaria and human population compartments in terms of mathematical equations and these equations represent the relations between relevant properties of the com... Show More
  • On Quasi-Newton Method for Solving Unconstrained Optimization Problems

    Felix Makanjuola Aderibigbe, Kayode James Adebayo, Adejoke O. Dele-Rotimi

    Issue: Volume 3, Issue 2, April 2015
    Pages: 47-50
    Received: 25 December 2014
    Accepted: 14 February 2015
    Published: 26 February 2015
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    Abstract: This paper discusses the use of quasi-Newton method algorithm employed in solving unconstrained optimization problems. The method is aimed at circumventing the computational rigours undergone using the Newton’s method.The Quasi –Newton method algorithm was tested on some benced mark problems with the results compared with the Conjugate Gradient Met... Show More
  • Natural Convection in Porous Triangular Enclosure with a Circular Obstacle in Presence of Heat Generation

    Raju Chowdhury, Md. Abdul Hakim Khan, Md. Noor-A-Alam Siddiki

    Issue: Volume 3, Issue 2, April 2015
    Pages: 51-58
    Received: 22 February 2015
    Accepted: 10 March 2015
    Published: 21 March 2015
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    Abstract: The flow and heat transfer due to natural convection in a triangular enclosure filled with a fluid saturated porous medium with a circular body in presence of heat generation has been numerically analyzed. The bottom wall of the enclosure is heated at a constant temperature while the left and right inclined wall of the cavity is maintained at cold ... Show More
  • Maximizing Operations Processes of a Potential World Class University Using Mathematical Model

    Agarana Michael, Ayeni Foluso

    Issue: Volume 3, Issue 2, April 2015
    Pages: 59-63
    Received: 4 March 2015
    Accepted: 17 March 2015
    Published: 21 March 2015
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    Abstract: Many Universities are striving to attain the status of a World Class University. Some Parameters used in ranking universities include: Quality of education and teaching, Research, citation, international outlook, Alumni, Awards and Industry Outlook, operations and processes of a potential world class university should be directed optimally towards ... Show More
  • Analytical Study on Unsteady MHD Free Convection and Mass Transfer Flow Past a Vertical Porous Plate

    S. F. Ahmmed, M. K. Das, L. E. Ali

    Issue: Volume 3, Issue 2, April 2015
    Pages: 64-74
    Received: 4 February 2015
    Accepted: 24 February 2015
    Published: 30 March 2015
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    Abstract: The unsteady MHD free convection and mass transfer boundary layer flow past a semi-infinite vertical porous plate immersed in a porous medium with heat source is studied. The plate moves with a uniform velocity in the direction of the fluid flow while the free stream velocity is considered to follow the exponentially increasing small perturbation l... Show More
  • Clustering Problem with Fuzzy Data: Empirical Study for Financial Distress Firms

    Slah Benyoussef

    Issue: Volume 3, Issue 2, April 2015
    Pages: 75-80
    Received: 15 February 2015
    Accepted: 25 February 2015
    Published: 2 April 2015
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    Abstract: In many real applications, the data of classification problems cannot be precisely measured. However, in an increasingly complex environment, these variables can be imprecise, qualitative or linguistic. In such a case, fuzzy set theory seems to be the convenient tool to fill this insufficiency. Thus, we proposed a new approach, based on the ranking... Show More