In a network deployment, a cognitive radio will have to perform two fundamental tasks. First, each cognitive radio needs to optimize its internal operation, and second, it needs to derive a configuration that will enable and optimize communication with other nodes in the network. This latter requirement, however, relies on knowledge about the other nodes’ current configuration settings, which n...

Background: Cytological examination of serous body fluids is extremely important since it throws light on the cause, presence of metastatic cells, typing of unknown cases, staging and prognosis of cancer. Aims and Objectives: 1) To study and evaluate current trends in cytological evaluation of serous effusions for various pathological conditions in a tertiary care centre. 2) To analyse their fr...

the aim of this paper is to study the high order difference scheme for the solution of a fractional partial differential equation (pde) in the electroanalytical chemistry. the space fractional derivative is described in the riemann-liouville sense. in the proposed scheme we discretize the space derivative with a fourth-order compact scheme and use the grunwald- letnikov discretization of the ri...

‎in this paper‎, ‎we introduce fractional-order into a model of hiv-1 infection of cd4^+ t--cells‎. ‎we study the effect of ‎the changing the average number of viral particles $n$ with different sets of initial conditions on the dynamics of‎ ‎the presented model‎. ‎ ‎the nonstandard finite difference (nsfd) scheme is implemented‎ ‎to study the dynamic behaviors in the fractional--order hiv-1‎‎i...

Bilgisayar teknolojilerindeki gelişmeler zor ve karmaşık hesaplamalar içeren kesirli matematik alanına olan ilgiyi arttırmıştır. Özellikle, gerçek sistemleri modellemedeki başarısı nedeniyle kontrol alanında çokça yararlanılmaktadır. Pek çok çalışma yapılmasına rağmen matematiği literatürde hala çözümsüz durumlar bulunmaktadır. Kontrol kullanımında karşılaşılan en büyük zorluk analitik çözüm ek...

It has long been a truism in computer systems design tha t balanced systems achieve the best performance. Message passing parallel processors are no different. T o quantify the balance of a hypercube design, we have developed an experimental methodology and applied the associated suite of benchmarks t o several existing hypercubes. The benchmark suite includes tests of both processor speed in t...

This study develops and analyzes preconditioned Krylov subspace methods to solve linear systems arising from discretization of the time-independent space-fractional models. First, we apply shifted Grunwald formulas to obtain a stable finite difference approximation to fractional advection-diffusion equations. Then, we employee two preconditioned iterative methods, namely, the preconditioned gen...