Russian Journal of Mathematical Research. Series A

9-14

Authors: Veronika O. Ilyanenko, Dmitriy V. Kolbasinskiy

This article presents the first results of the simulation of the physical process of movement underground. In the future, the model will be updated and used for non-destructive testing research. The article examines the urgency and necessity of simulation of electromechanical processes in the wagon 81-714/717 during its acceleration. The article presents the power circuit of the car under consideration and the scheme of its control circuits. There's also given a description of the operation of schemes and the processes occurring during acceleration. The simulation results of acceleration process of the car 81-714/717, i.e. its speed, are represented by authors graphically.

23-37

Authors: Rafik A. Simonyan, Irina P. Lopatina, Nadezhda A. Kornienko

In this article we study the virtual waiting times parametric model Kleinrock. The analysis is the development of the idea of the probabilistic interpretation of the integral equation Takacs and nested Markov chains. In the derivation of the main results, we use the method of introducing an additional event, regardless of when the operation of the system assumes that the system receives a Poisson flow of disasters and the Laplace transform is given a probabilistic sense. Further, the unit of analysis is based on the formula of total probability.