January 2013

On the behavior of the solutions of the system of rational difference equations

There has been a great interest in studying difference equations and systems. One of the reasons for this is a necessity for some techniques which can be used in investigating equations arising in mathematical models describing real life situations in population biology, geometry, economics, probability theory, genetics, physics etc. In this paper, we investigate the solutions of the system of rational difference...

Author(s): Abdullah Selcuk Kurbanli, Ibrahim Yalcinkaya and Ali Gelisken

January 2013

Double soliton solutions for some nonlinear partial differential equations (PDEs) in mathematical physics

In this article, the extended coupled sub-equations expansion method was used to construct a series of double soliton-like solutions, double triangular function solitons and complexiton solitons for some nonlinear partial differential equations (NLPDEs) via the (2+1)-dimensional breaking soliton equations and the (2+1)-dimensional Nizhnik-Novikov-Vesselov equations. With the help of symbolic computation as...

Author(s): Khaled A. Gepreel, Taher A. Nofal, and Ali A. Al-Thobaiti

January 2013

Digital in-line holography for blood cell

This paper investigates the application of Fresnel based numerical algorithms for the reconstruction of Gabor in-line holograms. A simple in-line digital holographic system was used to record blood cell. The Fresnel transformation (FS) method was used for reconstruction of the hologram. High contrast blood cell images were used to demonstrate numerical reconstruction process by Matlab. Sine, cosin, and amplitude...

Author(s): Adnan Salih and Khawla J. Tahir

January 2013

Mechanical properties of Rowan wood impregnated with various chemical materials

The aim of this research was to determine some of the mechanical properties of Rowan wood impregnated with various impregnation materials. For this purpose, the test samples were prepared from Rowan (Sorbus aucuparia Lipsky) wood materials that are of common use in the forest products industry of Turkey according to TS 345. The test samples were treated with Tanalith-E, Vacsol Azure, Imersol-Aqua, and Boron...

Author(s): Hakan Keskin, Neslihan Süzer Ertürk, Mustafa Hilmi ÇolakoÄŸlu and Süleyman Korkut

January 2013

Twenty-five years of wind data in south-eastern locations of Nigeria: Modeling and prediction of wind potential

Weibull distribution is often invoked to interpret and predict wind characteristics needed for effective design of wind power systems for different locations. In this paper, daily average wind data for Enugu (6.4°N; 7.5°E), Onitsha (6.8°N; 6.1°E) and Owerri (5.5°N; 7.0°E) over a 25-year period is modeled in terms of the Weibull distribution in order to accurately predict wind potentials for the...

Author(s): F. C. Odo, D. O. Ugbor and P. E. Ugwuoke