The article deals with the issues related to the design of control devices for technological equipment based on artificial neural networks. The algorithm of the neural network training process based on the Widrow-Hoff method is developed, designed for computer-aided design of artificial neural networks operating in the environment of a microprocessor system or a personal computer. The authors perform a software implementation of the algorithm for training a three-layer neural network using the C# programming language on the platform Microsoft.NET. The program uses a neural network training algorithm with a "teacher". The article shows the interface of interaction of the developed program with the "teacher" (designer of neural networks). An example is given of the development of an artificial neural network that performs the function of a binary number adder. The results of the research can be further used in the development of a computer-aided design system for artificial neural networks, and can also be used in the development of software for microprocessor control systems for technological equipment.

Keywords: artificial neural network, training, algorithm, programming language, neuron bias, adder, input signals, output signals, synaptic connections, neurons

It is indicated in the article that the study of the electron bunching process in the drift space of a transit klystron is an urgent task that allows one to establish general laws applicable to more complex models. In this connection, the behavior of the pre-modulated electron beam in the drift space of the transit klystron has been investigated. A numerical model has been implemented that takes into account the effect of space charge fields and the interaction of charged particles with elements of an electrodynamic system. A series of numerical experiments with different values ​​of the current and initial velocities of electrons, as well as their comparison with theoretical data, have been carried out. As a result of numerical experiments, data were obtained that characterize the dynamics of the electron flux in the drift space of the transit klystron at different values ​​of the initial velocity (0.5 s, 0.9 s) and cathode current (10 mA, 1A, 10A).

Keywords: flyby klystron, mathematical model, numerical simulation, large particle method, particle-particle method, drift space, convection current distribution, electron flow, multithreaded calculations, system of differential equations

This paper considers the vectorization and parallelization of the "particle-particle" method used to take into account interactions between objects in the mathematical modeling of physical processes, using the example of taking into account the space charge when calculating the dynamics of charged particles. Comparison and estimation of time costs are carried out (as a test problem, the expansion of a multicomponent ion beam during one nanosecond with a step of Δt = 10-12 s was considered), taking into account the acceleration due to vectorization and parallelization between processor cores. It is concluded that the results of the work clearly demonstrate that the vectorization of computations can significantly speed up the computation time, and the explicit replacement of scalar operations with vector ones makes it possible to obtain additional speed-up in comparison with the use of automatic optimization of the program code. Key words: parallel computations, "particle-particle" method, vectorization of computations, numerical modeling, Coulomb interactions, dynamics of charged particles, ion beam, program code, equation of motion, mathematical model.

Keywords: parallel computations, particle-particle method, vectorization of computations, numerical simulation, Coulomb interactions, dynamics of charged particles, ion beam, program code, equation of motion, mathematical model

To share and transfer knowledge, they must be presented in an explicit form that is understandable to both humans and computers. The paper proposes an approach to ontological modeling of WHAT-knowledge, which allows representing knowledge simultaneously in two forms: a) in the form of a visual model (ORM2-diagram), understandable to humans, and b) OWL2-ontology, computer understandable. To convert the knowledge representation from one form to another one, it is proposed to use ontological patterns (mapping rules). Currently, there is no software toolkit that allows a) to build an ORM2-diagram and mapping it in the OWL2-ontology, and b) based on OWL2-ontology, build a visual model in the form of an ORM2-diagram. Therefore, we are developing a Protege-plugin, which should provide a) the creation and editing of WHAT-knowledge by building an ORM2-diagram and mapping it in the OWL2-ontology, and b) visualization of WHAT knowledge in the form of an ORM2-diagram, extracting instances of ontological patterns from the OWL2-ontology. The paper provides a functional and structural description of the plugin; examples of its use are given.

Keywords: WHAT-knowledge, explicit knowledge representation, ontological modeling, ontology, visual model, intermediate model, ontological pattern, ORM2-diagram

The decentralized electric power supply zone occupies about 60-70% of the territory of the Russian Federation. Electric power supply here is carried out using electric generator sets with diesel drive engines. In combination with the difficult logistics of fuel and lubricants materials delivery, this leads to a high prime cost of electricity energy generated. In the capacity of a measures to the costs of electricity reduction, renewable energy sources are used, while maintaining diesel generation as a guaranteed supplier of electricity. Renewable energy is characterized by significant stochastic fluctuations. Based on experimental data, the article shows that the daily load curves of small settlements contain a significant stochastic component, which greatly exceeds the seasonal, daily, and technological components in amplitude. The purpose of this work is to substantiate the structure and parameters of a hybrid energy storage device (HESD) for the synthesis of electrical power generation complexes using renewable energy sources. Spectral analysis using the window Fourier transform is used as a tool. It is established that the energy approach to the choosing of HESD components requires N types of electric energy storage devices, which differ in the ratio: the permissible frequency of the charge-discharge cycle to the cost of the component. As a criterion for choosing the structure and parameter values of a hybrid energy storage device, an estimate is proposed for the levelized cost of electricity (LCOE).

Keywords: hybrid energy storage, electrotechnical complex, renewable energy, daily load curve, spectral analysis, Fourier series

The essence of strategic planning is revealed. The importance of strategic planning in construction is proved. The stages of strategic planning are briefly described. The strategic planning procedure is described. The stages of implementing the strategic plan are outlined.

Keywords: strategic planning, organization, construction, resources, financing, development, modeling, expert, implementation, information

In order to master the growing volumes of passenger and cargo transportation, the expediency of separating cargo and passenger traffic in the main directions of the SCR is considered, both from a technological and economic point of view. The main requirements for specialized trains are considered, which makes it possible to increase the competitiveness of railway transport and reduce operating costs accordingly; increase the carrying capacity and make it possible to master additional volumes of passenger and freight traffic to the Southern region of Russia and the Crimean Peninsula. In the context of specialization of the main directions of the SCR, a corresponding strengthening of their infrastructure will be required to increase the speed of passenger and freight trains, change the nature of the work of a number of technical stations and the development of transport hubs. To increase the capacity and carrying capacity of passenger traffic, it is proposed to introduce the technology of interval control in the entire direction of Sokhranovka-Rostov-Adler, and to improve the efficiency of transport management in this direction, the development of paperless technologies that provide for the conversion of speech commands into written standard orders with entry in automated logs.

Keywords: transport growth, infrastructure constraints, elimination of barrier areas, digital railway, interval regulation, paperless technology, freight transport efficiency

This paper discusses the results of engineering and environmental surveys on the territory of an unauthorized landfill near the working village of Erzovka, Gorodishchensky district, Volgograd region. In the course of the work, a comprehensive study of the state of atmospheric air, soil and radiation background was carried out. In accordance with the order of the Ministry of Natural Resources and Environment of the Russian Federation dated August 4, 2017 No. 435 "On the approval of the criteria and term for categorizing objects, the accumulated damage to the environment on which is subject to liquidation as a matter of priority", the study area was categorized. The data on the mass, morphological composition and hazard class of wastes located in the study area are presented. The results of a laboratory study of environmental pollution by production and consumption wastes are presented, and the accumulated environmental harm is assessed.

Keywords: unauthorized landfill, accumulated environmental damage, production and consumption waste, pollutants, heavy metal pollution, level of negative impact

In July and August 2019, the Grott ground penetrating radar was used as part of the field work of the Russian Arctic National Park, a federally funded institution, to survey areas polluted by oil products on Alexandra Island in the Franz Josef Land Archipelago. The results obtained are discussed and conclusions are drawn about the prospects of using the method of ultra-wideband electromagnetic sounding to solve environmental problems in the permafrost zone in the Arctic region.

Keywords: national park, Arctic, pollution, waste, soil, rock, georadar, ecosystem, sounding, radarogram, infiltrate

The article considers the dynamics of an ion beam in a laser mass – EMAL-2 spectrometer.a numerical model based on the "large - particle" method is Implemented, taking into account the influence of spatial charge fields and the interaction of charged particles with the field of an electrodynamic system. The software package that implements the mathematical model of ion beam motion consists of two parts. The first part is a program written in C++, in which initial conditions are set, the Coulomb interaction between large particles is calculated using the "particle-particle" method, the system of differential equations (1) is integrated using the fourth-order Runge-Kutta method, and the results are recorded and processed. The second part is a script for the FreeFem++ package, which implements the solution of partial differential equations using the finite element method. A series of numerical experiments and their comparison with the data obtained experimentally are carried out.

Keywords: large particle method, laser mass spectrometer, particle-particle method, electrodynamic system, Runge-Kutta method, laser plasma, magnetic analyzer, ion beam, focusing system, triangulation

In the modern world, the issue of the ratio of the quality of construction technologies at oil production facilities and prices for various types of services associated with this activity is very relevant in the oil and gas sector. In this sector, there is constant competition between companies in search of the most efficient, cost-effective and innovative project. Design and survey work is a very important part of any project. Determining the cost of design and survey work is an important stage in the organization of the construction process. The contracting of design organizations takes place in a market economy, taking into account the expected quality of work, and also represents a labor-intensive process that cannot be implemented without the development of internal concepts among companies. The article will review the existing successful concepts for determining the cost of design and survey work that are used today. Also, the use of modern technologies at the stage of design and survey work can not only improve the quality of work, but also solve the cost issue.

Keywords: oil and gas industry, design and survey work, general designer, contracting, new concepts, cost, quality, new technologies

The article deals with the dynamics of an ion beam in a tandem laser mass-reflectron. The software package that implements the mathematical model of the ion beam motion is based on the "large - particle" method.it takes into account the influence of the spatial charge field and the interaction of ions with the field of the electrodynamic system. The potential distribution in the device nodes is obtained by numerical solution of the Laplace equation using the mathematical package Freefem++, which implements the solution of partial differential equations by the finite element method. The absence of inhomogeneity of the electric field inside the reflectors is shown. A series of numerical experiments has been carried out, which has shown the convenience of using the finite element method for numerical solution of problems of electrostatics and ion optics, as well as the effectiveness of using numerical modeling to develop and optimize the parameters of mass spectrometers.

Keywords: large particle method, laser mass spectrometer, particle-particle method, electrodynamic system, Runge-Kutta method, laser plasma, ion beam, focusing system, triangulation, gas-forming impurities, time-of-flight mass spectrometer

The method of calculating the coagulant dose using the technology of concentrated coagulation with the addition of air is given. The paper considers the peculiarities of using aluminum sulphate and aluminum polyoxychloride as a coagulant in different periods of the year, taking into account seasonal changes in water quality. Recommended values of parameters used in calculations of the coagulant dose during the year are given. The refined method of calculating the coagulant dose allows determining the weight dose of the reagent, including the mixed coagulant, taking into account the required air saturation of water, as well as the optimal volume of the so-called auxiliary water flow sent for concentrated coagulation.

Keywords: coagulant dose, aluminum sulphate, aluminum polyoxychloride, air saturation, concentrated coagulation, auxiliary flow, mixed coagulant

The article considers one of the main systems that ensure the safety of workers and passers – by in a dangerous zone-the protective-catching grid. The types of grid systems, basic principles of their operation, and technical characteristics are described. The requirements for the installation and operation of such systems are considered.

Keywords: grids, construction, security, organization, security screens

The article discusses several equivalent circuits constructed by sequentially connecting circuits for the membrane and protoplasm. The solution was made using the Cardano formula for cubic equations. The roots in the expression for the determination of resonant frequencies determined the resonant frequencies for the given parameters for the membrane and intercellular fluid; to obtain numerical values, values ​​were used within several permissible limits. In the course of the calculations, it was confirmed that most resonant frequencies are in the millimeter and submillimeter ranges. It is also shown that the cell vibration frequencies occupy the decimeter, centimeter, millimeter and submillimeter wavelengths. Obviously, it is the impact on biological systems of electromagnetic radiation in the indicated wavelength ranges that will be most effective and can lead to a maximum biological response (effect).

Keywords: equivalent equivalent circuit, biological structure, membrane, oscillatory circuit, Cardano formula, protoplasm, resonant frequencies, electrical processes, equivalent equivalent circuit, electromagnetic radiation