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Genetic algorithm (GA) inspired by the biological world is a general search and optimization method. It was first proposed by Holland in 1975. GA has been applied to many scientific areas especially in engineering optimization problems. It is also used in solving of quantum mechanical problems. In this study, we have applied this method to different realistic quantum mechanical problems of both self-consistent and non-self-consistent type. The results obtained are compared with the results of other methods and it is seen that the GA can be a very powerful alternative to some other traditional techniques such as variational method.

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A Molecular Dynamics Study Of The Static Structure, Thermodynamic And Transport Properties Of Liquid Iron Using The Modified Analytic Embedded Atom Method, Serap Şentürk Dalgiç, İbrahi̇m Koçoğlu Jan 2006

A Molecular Dynamics Study Of The Static Structure, Thermodynamic And Transport Properties Of Liquid Iron Using The Modified Analytic Embedded Atom Method, Serap Şentürk Dalgiç, İbrahi̇m Koçoğlu

Turkish Journal of Physics

Using the modified analytic embedded atom method (MAEAM), we have carried out molecular dynamics (MD) simulation to compute structure,thermodynamic and transport properties of liquid iron. The Foiles type effective pair potential based on the MAEAM potential functions proposed by Quyang and co-workers are shown to predict the pair distribution function well near its melting. The calculated thermodynamic properties such as, the internal energy, Helmholtz free energy and entropy are in a good agreement with experimental data. The results for the computed self-diffusion coefficients are in reasonable agreement with experiments and other works.

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Cover And Contents Jan 2006

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Turkish Journal of Physics

No abstract provided.

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Cover And Contents Jan 2006

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Turkish Journal of Physics

No abstract provided.

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Cover And Contents Jan 2006

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Turkish Journal of Agriculture and Forestry

No abstract provided.

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Cover And Contents Jan 2006

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Turkish Journal of Veterinary & Animal Sciences

No abstract provided.

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Constructing New K3 Surfaces, Selma Altinok Jan 2005

Constructing New K3 Surfaces, Selma Altinok

Turkish Journal of Mathematics

This paper is concerned with a method based on birational geometry and produces dozens of new examples in codimensions 3, 4, 5 etc. The method is called unprojection by Reid. Using this method we construct new examples of K3 surfaces of codimensions 3 and 4 in weighted projective spaces from smaller codimension K3 surfaces whose rings are much simpler. This leads to the existence of almost all candidates for codimension 3 K3 surfaces in the list.

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Optical Characterization Of Chemical Bath Deposited Bismuth Oxyiodide (Bioi) Thin Films, F. I. Ezema Jan 2005

Optical Characterization Of Chemical Bath Deposited Bismuth Oxyiodide (Bioi) Thin Films, F. I. Ezema

Turkish Journal of Physics

Thin films of Bismuth oxyiodide (BiOI) were deposited, using chemical bath deposition techniques. The films were characterized using energy dispersive x-ray fluorescence (EDXRF) and Fourier transform infrared (FTIR) spectroscopy for chemical composition, and a spectrophotometer for the analysis of spectral absorbance / transmittance / reflectance. Deposited film thickness ranged between 0.115 and 0.140 \mu m. The optical properties deduced from the spectral absorbance / transmittance / reflectance include the maximum values of the refractive index n that ranged between 2.62 and 2.64, the extinction coefficient k ranged between 25.84 \times 10^{-3} and 42.92 \times 10^{-3} while the Optical conductivity \sigma …

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Cover And Contents Jan 2005