introduction: pulmonary tuberculosis is major problem worldwide and it is estimated one third the world population are already infected and each year 9 million people develop full blown tuberculosis of these 3 million die of the disease, annually. delay in diagnosis and treatment are major problems that play a significant role in all aspect of the disease from patient treatment to transmission ...

The concept of invariant zeros in a linear time-invariant system with state delay is considered. In the state-space framework, invariant zeros are treated as triples: complex number, nonzero state-zero direction, input-zero direction. Such a treatment is strictly related to the output-zeroing problem and in that spirit the zeros can be easily interpreted. The problem of zeroing the system outpu...

We study the stabilization problem of a linear time-invariant system with an unknown stochastic input delay. propose to robustly compensate for delay constant time horizon prediction-based controller. prove mean-square exponential closed-loop under sufficient condition, which requires range values be sufficiently narrow and used in controller chosen this range. Numerical simulations illustrate ...

In a parallel multichannel data communication system the stop-and-wait Automatic Repeat Request (ARQ) protocol for parallel channels with an in-sequence delivery guarantee is used for error control. Under the assumption that all channels have the same transmission rate but possibly different time-invariant error rates, we evaluate the probability generating function of the resequencing buffer o...

In this paper we demonstrate how Lyapunov-Krasovskii functionals can be used to obtain exponential bounds for the solutions of time-invariant linear delay systems.

Most data networks contain cycles, but so far most attention in the literature of network coding has been addressed to multicast in acyclic networks. The original paper on network coding [1] did consider cyclic networks but there it was suggested to transform the cyclic network into an acyclic network using the idea of unrolling the network into a layered network. This approach has many drawbac...

In this paper, we proposed a numerical integration method for the solution of singularly perturbed delay differential equation with dual layer behaviour. In this method, an asymptotically equivalent first order neutral type delay differential equation is obtained from the second order singularly perturbed delay differential equation and employed Trapezoidal rule on it. Then, linear interpolatio...