Donbas State Technical University

The purpose of this study is to develop a new conceptual approach to the modernization of existing industrial operated automated process control systems (IOAP CS) in order to integrate them into the technology of building digital twins and digital factories with minimal expenditure of computing resources and reducing the amount of processed data. To solve this problem, it is proposed to modify existing automated process control systems (IOAP CS) sequentially by automation levels so that the volume of redundant information is reduced in the structures of the levels, as well as predicting the values of technological parameters based on the properties of control objects using artificial intelligence in order to use identical values in automated process control systems (IOAP CS) and in their models of digital twins. To obtain information about technological processes with a low degree of automation, it is proposed to use organizational and technical structures based on the theory of graphs with a finite vertex, reflecting the volume and quality of the products obtained using algorithms based on artificial intelligence tools, which make it possible to predict the result of subsequent ones based on the results of the previous stage, taking into account the accumulated experience, this will enable an expert assessment of the correctness of the technological process to achieve the required product properties and performance of the technological unit. The proposed concept of modification of automated control systems (IOAP CS) for technological processes in operation will make it possible to ensure the transition to building digital counterparts of technological processes with minimal time using available computing resources with minimal loss of the volume of products.

The modern development period features, as well as the specific conditions of functioning and development of industrial enterprises require more advanced approaches to the managers’ leadership qualities analysis. Currently, the issue of assessing leadership qualities and the influence of leadership on the performance indicators of the enterprise remains relevant. The purpose of the article is to substantiate the methodological sequence of leadership assessment in the personnel management system of industrial enterprises, contributing to their effective operation. The development and implementation of such a methodological approach at an industrial enterprise will provide answers to topical issues of the formation and influence of leadership on the innovative, technological, and socio-economic development of an industrial enterprise. Based on the analysis, the article examines the relevance and shortcomings of existing methods for assessing leadership in industrial enterprises. The authors determine the indicators of leadership assessment and reveal the features of leadership assessment; substantiate methodological sequence of leadership assessment in the personnel management system of industrial enterprises. The authors conclude that the leadership formation and its use should be assessed. In the process of forming a methodology for assessing leadership, it is important to evaluate its impact on achieving the main innovative, technological, and socio-economic guidelines of the enterprise.

In the result of the mine instrumental measurements and analytical studies it was determined that at the rock extraction with the additional load decrease of a destruction front border the rock destruction intensity in the near-contour area is increased. The knowledge of this rock deforming feature allows to control the process of their destruction by changing support reaction and its yielding directions, and in some cases to use the mass rocks as a carrier material. Taking into consideration this regularity, a number of supports for holding up the development workings in soft rocks were proposed, worked out and tested by us. These are special circular supports: doubled, with limited yielding; original working junction supports. Some support designs with strenghening are used in the area of sloping operations impact. A positive effect is obtained by using technical solutions during the vertical shaft repair.

Objectives Development of a method for selecting the type of accessory function and obtaining its parameters to allow subjective personal influences in automated information processing to be excluded.Method. Existing methods for constructing membership functions were analysed. The research was based on the methods of fuzzy logic and data analysis.Results. A method for obtaining the parameters of membership functions of fuzzy sets using real data is suggested. It is proposed to use the data obtained from the object under study to determine the kernel of the fuzzy number, as well as derive theoretical information about the object for the carrier. Triangular, trapezoidal, bell-shaped and Gaussian membership functions are considered. The appearance of the membership function can be defined using the criterion of the relations of the kernel to the carrier of a fuzzy set. The results of calculations for obtaining the membership functions based on data on the power consumption of electric motors of different types are given.Conclusion. The developed method can be used both in decision support systems as well as in automated systems for controlling technological processes. If necessary, the values of the criterion proposed in the article can be revised to take the values included in the set of measured real data into account or to simplify the procedure of automated processing. Further research will use the described method to obtain the terms of linguistic variables.

Este artículo se propone analizar las características de segregación socio-espacial de Villa 15, desde un abordaje que articula un enfoque macro -patrones de segregación- y micro –mirada centrada en los actores– de dicha problemática. Buscamos plantear teórica y metodológicamente un modo de abordar y comprender en profundidad las características de un territorio denominado segregado. Para ello trabajamos con distintos niveles de análisis: el proceso histórico que conforma un territorio particular con ciertas características, la estructura socio-urbana actual a partir de diversos indicadores (sociales y características físicas-urbanas) y las prácticas de movilidad cotidiana de los residentes de Villa 15 como lente que nos permite profundizar sobre los usos de la ciudad y el barrio por parte de sus habitantes y su relación con las características del territorio. Las prácticas cotidianas son entendidas como enfoque, pero también, como catalizador de las desigualdades urbanas, lo cual supone una relación dialéctica y de mutua influencia entre las características del territorio y las prácticas de movilidad cotidiana de los habitantes.

Based on the results of simulation of resonant inverter of voltage the adjustment and output characteristics are constructed for synchronous and asynchronous methods of control. A comparative evaluation of energy efficiency was carried out for the resonant inverter of voltage with frequency, phase and time-pulse method of control. It is shown that when the output frequency is increased, using the method of synchronous time-pulse modulation with energy circulation provides more efficient operation of resonant inverter of voltage.