In the paper is proposed the qualitative analysis model for the portfolio rebalancing process evaluation, it is shown the possibility of applying structural coefficients for portfolios analysis with the purpose of their management, in the practical part is given an example of portfolios managed by the Russian funds.

The goal is set to adjust the model of unmanned aerial vehicle (UAV) using experimental data for identification and statistical analysis of experimental model completeness. The suggested statistical approach to evaluating multifactor uncertainty-resistant design solutions for an experimental model of unmanned aerial vehicle reflects the validity and completeness of solution for adjusting aerodynamic UAV models using experimental data.

Abstract—Scheduling problems at the level of enterprises with discrete production process in which parts are processed and then assembled into components, units, and final products are considered. Methods using data aggregation are proposed to solve these problems. Computational experiments confirm the efficiency of the proposed methods.

Abstract—We consider scheduling problems for routing freight trains through a railroad network. To solve these problems, we propose models and methods that use ideas and principles previously applied to construct part processing job schedules in industrial shops. The proposed approaches have been implemented in software, and our computational experiments have shown their efficiency

From antiquity to the present, queues and delays have seemed to be phenomena human beings are always encountering with. Such events are assumed to be probabilistic and described by stochastic models in classical science. In fact, queueing theory, a great branch of probability theory, handles these problems. At the same time, relatively new theory of deterministic queuing systems, or network calculus, considers queues and delays as being deterministic and operates with regular bounds. The article presents a historical review, basic ideas and results of conventional queueing theory and its competitor, network calculus, highlighting the advantages of the latter for dealing with facilities of increased danger.