2008, Vol 9, No 2
http://hdl.handle.net/123456789/3893
2024-03-29T15:22:50ZFirst order necessary optimality conditions for the systems with three-point boundary conditions
http://hdl.handle.net/123456789/10464
First order necessary optimality conditions for the systems with three-point boundary conditions
Djabrailov, Shamo; Sharifov, Yaqub
Optimal control problem with three point boundary conditions is considered in the paper. Using the increment formula for the first order functional the necessary conditions of optimality is obtained in the form of Pontryagins maximum principle. It is shown that for some particular cases the obtained necessary condition is sufficient at the same time.
URL: http://sjam.selcuk.edu.tr/sjam/article/view/210
2008-01-01T00:00:00ZApplication of homotopy perturbation method to nonlinear ozone decomposition of the second order in aqueous solutions equations
http://hdl.handle.net/123456789/10463
Application of homotopy perturbation method to nonlinear ozone decomposition of the second order in aqueous solutions equations
Miansari, Mo.; Ganjavi, B.; Barari, A.; Jeloudar, M. Ghanbari; Ganji, D. D.
In this paper, homotopyperturbation method (HPM) is introduced to solve nonlinear equations of ozone decomposition in aqueous solutions. HPM deforms a difficult problem into a simple problem which can be easily solved. The effects of some parameters such as temperature to the solutions are considered. The results obtained from HPM are compared with those of Adomian decomposition method (ADM). Comparison with Adomian's decomposition method reveals that the approximate solutions obtained by the proposed method converge to their exact solutions faster than those of Adomian's method.
URL: http://sjam.selcuk.edu.tr/sjam/article/view/209
2008-01-01T00:00:00ZCointegration relationship between the two sides of the electric energy sector
http://hdl.handle.net/123456789/3900
Cointegration relationship between the two sides of the electric energy sector
Akdi, Yılmaz; Şahin, Afşin; Atakan, Cemal
Energy is one of the basic micro dynamics of the general economy. Turkey as one of the candidate countries to the European Union is dependent on the petroleum and natural gas as the member states. Along with this, Turkey should turn to other energy sources bethinking the high population increase. In this article, we have investigated the relationship between the elecrtic energy production and consumption in Turkey. We observed that the production and consumption series are both non-stationary. Standart and the periodgram based unit root tests were employed to both series. The periodgram based unit root test is invariant to mean. Moreover, the distribution of critical values are free of the sample size and model selection. First, we observed that both of the series are non-stationary. Next, we have searched for a possible cointegration methods. We rejected the cointegration relationship for the consumption and supply side of the electric energy sector.
http://sjam.selcuk.edu.tr/sjam/article/view/208
2008-01-01T00:00:00ZParallel algorithm conveyer processing with a minimal memory usage
http://hdl.handle.net/123456789/3899
Parallel algorithm conveyer processing with a minimal memory usage
Bosakova-Ardenska, Atanaska
This paper analyses a parallel algorithm conveyer processing of recursive method of scanning mask and proposes a modification of it - conveyer processing with a minimal memory usage. This algorithm removes a doubling of output information and decreases the number of operations compared with the algorithm conveyer processing. For parallel implementation of algorithms we use MPI (Message Passing Interface). For execution of parallel programs, cluster of 4 computer systems (each with 2 processors) is used. It is made comparison between these two algorithms in sequential and parallel implementation.
http://sjam.selcuk.edu.tr/sjam/article/view/207
2008-01-01T00:00:00Z