Background. This article presents the composition and algorithm of the automated control system for the parameters of a pneumatic arch-breaking system installed on bunkers with bulk materials. The relevance and practical significance of the issue considered in the article is determined by the fact that when unloading bulk material from the hopper, various violations of the technological process may occur, manifested in the formation of material freezes inside the container, a decrease in the amount of unloaded material, segregation, up to a complete stop of unloading due to the formation of arches. Materials and/or methods. Methods of mathematical modeling, system analysis, comparison, systems theory, as well as architecture and mathematical model of a recurrent neural network with feedback are used. Results. The composition of input and output parameters of the control system is substantiated. Methods for solving problems of classifying parameter sets are considered and an artificial recurrent neural network with feedback and with a sigmoidal activation function of neurons of the hidden layer and a linear activation function of the output layer is selected. Conclusion. The article analyzes the requirements for the system of automated control of the parameters of the pneumatic arch-breaking system. Based on the analysis of possible states of the system, the composition of the system elements and the sets of input, intermediate and output parameters of the system, as well as the objective function of the system operation, are substantiated. It is shown that the system can be built on the basis of an artificial neural network. The algorithm of the automated control system for the parameters of the pneumatic arch-breaking system has been developed.
Purpose. The aim is to study the trends in the evolution of the transport and logistics market of Russia under the influence of Western sanctions, taking into account the conjuncture of the world economy. Methods of work: analytical, logistics theory, general theory of systems, marketing. Results: the study considers alternative logistics schemes for the delivery of imported goods from the USA and EU countries to Russia. Trends in the construction of a new architecture of transport logistics have been established. Scope of the results: A critical assessment of the current state of the transport and logistics market of the Russian Federation is given and the features of its functioning under the influence of the sixth package of Western sanctions are established. The novelty lies in determining the prospects, opportunities and threats of “rapid reconfiguration” of the architecture of transport and logistics schemes for Russia. The practical significance lies in the fact that an attempt has been made to answer the question “What could be the scenario for leveling the trigger effects of the next package of anti-Russian sanctions?”. It is established that the following scenarios of leveling trigger effects are possible: 1) intensification of domestic production and its localization within the country; 2) development of the transport and logistics infrastructure of the regions in new directions of delivery; 3) overcoming the shortage of empty containers, optimizing the work of border crossings, improving the efficiency of interaction of modes of transport; 4) development of multimodal delivery systems in close cooperation with foreign partners from Kazakhstan, China, Belarus and others . 5) entering new markets for import-dependent sectors of the Russian economy; 6) state regulation of the transport and logistics market. 7) the “revival” of supply chains within the country.
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