Eugene Kopytov

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There is considered a two-level single-product inventory control system which controls correspondingly the wholesale’s warehouse and the customers’ warehouses. For delivering the product there has been organized a supply chain “producer – wholesaler – customer”. It is assumed that the customers and the wholesaler shape their stocks having in mind the(More)
The work suggests the application of the regression analysis for selecting the parameters in case of controlling and diagnosing the gas-turbine engines under the conditions of maintenance. The existing approaches to the determination of the diagnostic parameters choice are based on the analysis of the registered flight and ground information on the engine(More)
In the paper it is shown that the statistical data of throttling characteristics of turbofan by thrust parameter can be presented in the form of linear non-dimensional dependence that simplifies the generalization of such characteristics for various flight configuration. At that, as measuring (basic) thrust values it is suggested using values measured in(More)
The paper presents the research of temporal data usage in the information systems (IS) for railway transport. In the research the IS artifact building phase has been executed. The models and methods oriented at the operation with the temporal objects of the railway transport system have been designed. The work takes into consideration the problems of the(More)
In the given paper we investigate the problem of constructing a simulation model for the optimization of current stock of divisible productions in the warehouse. Criterion of optimization is minimum of average expenses for goods holding, ordering and losses from deficit and damage to the goods per time of season. The ExtendSim 8 package has been used as the(More)
It is offered to employ the neural network (NN) technology in the software of on-board aircraft engines automatic diagnostic system. But first it was necessary to solve the problem related to teaching NN the ability to adequately and certainly evaluate critical shift of an aeroengine technical condition in flight, including engine monitoring system, e.g. in(More)
A single-product inventory control model with different distributions of demand for goods and random lead time is considered. The proposed model uses the regenerative approach. It gives possibility to find optimal values of reorder point and order quantity. Criterion of optimization is minimum of average expenses for goods holding, ordering and losses from(More)
The authors have suggested three possible models of presenting temporal data in Information Systems (IS) of the train schedule, differing in the building principles. Choice of the optimal model of data presenting is performed with the account of different indicators characterizing the IS. For evaluating the efficiency of suggested models the Analytic(More)
The given research fulfils the evaluation of the efficiency of application of two universal simulation packages ExtendSim 8 and AnyLogic 6.7 for inventory control system simulation. In the study twenty eight evaluating criteria have been developed which are distributed in five groups: general, programming aspects, visualization, simulation and user support.(More)
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