This work is devoted to the research and development of an automated control system for the technological process of leading of long sleeves. Long sleeves are an important and promising direction for the development of industrial and metallurgical industries. Now there is a wide variety of designs and sizes of sleeves. However, there are four main methods of their manufacture: mandrel, half-mandrel, without mandrel and on flexible mandrels. The article presents an analysis of the advantages and disadvantages of each of them. Mastering and improving the technology of manufacturing sleeves on flexible mandrels is the main way to increase the volume and speed of sleeve production. The results of mathematical modeling of the automated system are presented. The simulation was performed using the ViSim software tool. The control object is a lead melting bath. The temperature of lead is accepted as an adjustable technological parameter. The method of passive experiment was used to build an automated control system.

Keywords: automated control system, technological process, long sleeve, lead, temperature, mathematical modeling, control object, transfer function, control parameters

This paper is dedicated to the problem of developing parallelizing compiler for computational systems with distributed memory and approaches of solving that problem. Correseponding parallelizing program transformations are described that are developed using Optimizing parallelizing system. Described transformations automatically detect optimal data placement in distributed memory to minimize inter-node data transfers, detect points inside source program to insert directives for those transfers. Inter-node data transfer optimization is performed using special graph model connecting operators and variables inside source program. Optimizing parallelizing system includes program transformations to generate Message Passing Interface (MPI) code using affine data distribution for arrays with parameters specified using compiler pragmas. Examples of MPI code generated using these distribution methods are listed. This work is based on authors' previous works. Developing compilers for code generation onto distributed memory systems is becoming important for future central processing units with tens, hundreds of thousands of cores.

Keywords: automatic parallelization, distributed memory, program transformations, data distrubution, message passing

This paper presents the results of a study of the speed and acceleration time of a wheeled vehicle with a 4x2 manual transmission with a rear driving axle. A mathematical model of this wheeled vehicle is given. For this purpose, a design scheme of the differential transmission of a wheeled vehicle with a rear driving axle was presented, and a system of differential equations of motion of the car was also given. Simulation modeling is carried out using the MATLAB Simulink environment, which allows conducting research on the developed system based on a given mathematical model.

Keywords: wheeled vehicle, 4x2 manual transmission, rear drive axle, MATLAB Simulink, mathematical model, simulation.

The article presents the results of the calculation and analysis of the distribution of field strength in the area of the measuring ring of the capacitive transducer for various geometric dimensions of the electrodes. Also, the appropriate distance between the electrodes and their size in the primary converter system were determined to assess the quality of mixing natural and chemical fibers at the output of tape equipment.

Keywords: fiber mixing quality, electromagnetic field, capacitive estimation method, conformal transformations

The study of damage to bolted connections using numerical simulation using ANSYS requires the analysis of stress fields in Cartesian coordinates along the angle and radius of the pads. The results show in detail the formation of the bolt assembly and the position of the stress concentrations. The surface between the contact elements is characterized by contact pressure, adhesion and clearance. With the help of the obtained results, it became possible to determine the stress that caused the initiation and propagation of a crack, as well as the position of the damaged section of the bolted joint.

Keywords: bolt assembly, numerical simulation, contact simulation, damage zone, finite element, abrasion

This paper presents methods of processing handwritten biometric data. The initial data are coordinates of a position of a pen on a graphics tablet. For this, the proprietary database of handwriting samples and the open signature database SVC 2004 were used. The proprietary database includes 29 users, 754 random and 754 simple forgeries. At the stage of biometric data processing, the following methods were used – «interpolation of handwriting» (entering points at an equal distance between the initial points of the handwritten signature), the histogram approach, «pen movement speed» (the path traveled by the pen at different stages of handwriting input process). Such methods eliminate the variability of the biometric data over time and over spatial axes. As a result, we recommended a standardization approach (Z-score), discretization (one-dimensional linear interpolation and discretization with variable step based on arithmetic progression) of biometric data. The table of results presents the values of the quality of biometric features. The obtained experimental results will be useful for researchers to improve their studies in the field of biometric security systems

Keywords: handwriting, biometric data, graphic tablet, verification, authentication, standardization, discretization, interpolation, information security

The article describes the development of a virtual emulator of the polyvinyl chloride drying process. The development of the emulator is implemented using the Omegaland development environment. The characteristics and functional structure of the polyvinyl chloride drying process in a fluidized bed dryer are presented. Mathematical models of elements of simulated system are considered, algorithm of their operation is characterized. The steps of developing a virtual polyvinyl chloride drying simulator are described. The flowchart is assembled in the OmegaLand Visual Modeler modeling environment. The fluidized bed dryer module was developed in the integrated development environment of Microsoft Visual Studio in the C++ programming language. The developed dryer model was integrated into the Omegaland library. The developed dryer model was tested in the emulation mode of the polyvinyl chloride drying process.

Keywords: mathematical model, drying, polyvinyl chloride, Omegaland, emulator, virtual simulator, fluidized bed dryer

The article discusses approaches to solving natural language processing problems such as extracting key concepts or terms, as well as semantic relationships between them to build data-driven IT solutions. The subject of the work is relevant due to the constant growth of volumes of low-structured and unstructured digital text. The extracted information can be used to improve numerous processes: automatic tagging, optimization of content search, construction of word clouds and navigation sections; furthermore, to create draft versions of dictionaries, thesauri, and even bases for expert systems.

Keywords: natural language processing, term, lemma, semantical relationship, statistical processing, machine learning, word2vec

Any mobile application consists of work screens that contain various information. Every year there are more and more requirements for applications. This is due to the constant growth in the number of users of various services that require certain software components for their functioning. The use of primitive development methods, as well as outdated components, leads to an increase in the timing of design, implementation and implementation of the project. But the development of technology does not stand still, which makes it possible to solve the emerging time-consuming tasks in an easier form and much faster. And an example of this is the developed library "The Navigation Component", which allows you to create a convenient and understandable navigation scheme inside the application, and this is simply necessary when a mobile application has many working windows. The article will list the components of the library "The Navigation Component". The main attributes are shown. The principle of operation of each component is considered.

Keywords: navigation diagram of the application, The Navigation Component, application, Android

This article discusses the formation and connection of layers in the task of classifying images of traffic signs, as well as calculating weights on the corresponding layers of the neural network. The authors describe the biological structure of brain neurons, as well as their comparison with artificial neural networks. A conceptual model of an artificial neuron and a neural network with a description of structural elements is presented. The matrix structure of the weights of the neural network is given. The process of converting an RGB image of a road sign into an input layer of a neural network is described. A corresponding description is provided for each hidden layer. In addition, a description of the convolution layers and the maximum pool is given, as well as an explanation of the need to use this type of layers in a convolutional neural network. The authors also described an algorithm for the formation of a convolutional neural network for the classification of road signs. Examples of the operation of this neural network are given.

Keywords: convolutional neural networks, classification, deep learning, big data, mathematical modeling, computer science

The results of the development of a software package are presented that allow training personnel to work in a district heating system to ensure a reliable process of energy transportation in heat networks. The developed simulator described in the article is a software package that includes a SCADA system and a Termas client for modeling and simulation operation of the district heating system. The simulator consists of a thermal-hydraulic mathematical model of the operating modes of the heating network, software and information support for setting up the operating modes of the simulator and assessing the actions of the personnel by the instructor based on the results of work on the simulator. The requirements for the functionality of the simulator are presented. The Demand Analysis application was used to collect data on energy consumption and outdoor temperature. The process of operation of the simulator in the simulation and modeling mode for the heat networks of the city of Yekaterinburg is presented. The developed software simulator makes it possible to simulate an accident, train personnel in the skills of safe equipment control in complex non-stationary modes. The software package allows you to reduce energy costs.

Keywords: training simulator, software, district heating, heating networks, SCADA system, Termis platform, model, temperature, accident

Modern research of objects of technology is largely carried out using various software systems. One of such software packages is SolidWorks. It is widely used in industrial enterprises and in research organizations. This complex has extensive libraries of properties of various structural materials. However, they do not represent the properties of all possible combinations of materials with the appropriate hardness. When building a model of a real object, it is necessary to accurately set the properties of materials. This will make it possible to carry out various design calculations with greater accuracy. Previous studies have established that the working part of the turbocharger rotor shaft (made of 40X steel) consists of two layers - surface (hardened) with a hardness of HV 530-570 and internal (not hardened). The values of the physical and mechanical properties of 40X steel with a hardness of HV 530-570 necessary for constructing a rotor shaft model are not available both in the SolidWorks material properties library and in the reference literature. To determine the necessary values of the properties of this material, a series of experiments using a bursting machine was carried out. The experiment was carried out with specially manufactured samples subjected to heat treatment to a hardness of HV 530-570. The data obtained as a result of the experiment were used to construct a model of the turbocharger rotor shaft when assigning the properties of the surface (hardened) layer. This approach makes it possible to obtain results corresponding to real details when carrying out engineering calculations of the constructed models.

Keywords: software package, model, engineering calculation, rotor shaft, surface layer, hardness, sample, tensile machine, physical and mechanical properties, repair

To date, the issue of industrial development of the Northern territories of Russia is being actualize. The main task is the production of concrete works that require the use of special methods. The purpose of the current article is to justify the need to develop a software solution that allows you to automate the calculation of the pa-rameters of the heating wire during winter concreting. The author raises the ques-tion of the relevance of using the method of winter concreting on the example of heating wires. The paper analyzes aspects of the design of this program. The scien-tific significance of the article lies in the possibility of using the presented materials as a basis for creating a real software solution. The predominant part of the article is devoted specifically to the issues of creating a solution for automating the calcu-lation of heating wire parameters during winter concreting.

Keywords: construction, program, automation, heating wire, winter concreting, the Far North

The procedure for carrying out a set of works to preserve the object of cultural heritage of regional significance "The mass grave of Soviet soldiers who died of wounds" is given. All stages of carrying out such types of work are considered, recommendations are given for solving issues that arise in the process of carrying out work.

Keywords: repair, object of cultural significance, work technology, inspection, building structures, mass grave

The paper considers the results of modeling the cable system of the above-water cable-stayed transition of the main gas pipeline using a laboratory installation and computer modeling using finite element methods. The main characteristics of materials and structural elements used to create a computer and laboratory model are given. Various modes of tension of the cable system affecting the further operation of the model under consideration, allowing to determine the service life of the object, are studied. It is shown that with a slight weakening of the tension of one of the cables, in the cable system, the occurrence of stresses in the pipe body is observed, the magnitude of which, under certain conditions, greatly exceeds the operating values. A small imbalance of effort leads to a redistribution of effort and a distortion of the entire structure, which, under cyclic loads, can lead to a premature exit from the standing of the object in question.

Keywords: cable-stayed transition, effort, stress-strain state, cable system, finite element method, model, load, force.

The trends of modern society require a quick solution to the issues of restoration of emergency buildings and structures. New methods of strengthening the load-bearing structures of buildings are aimed at reducing labor costs, the timing of work and the need for complex equipment. In the field of reinforcement of reinforced concrete structures, such methods are composite reinforcement systems. Having proven itself well in working with bendable and compressed elements, there are areas where their use has not yet been studied. One of these is the reinforcement of reinforced concrete girderless floors, in which the protective layer of concrete is broken. This article is devoted to the development of a method of reinforcement with composite materials, where the protective layer of concrete was violated. At the same time, the internal moment of a pair of forces reduces the bearing capacity of the element by about 30%. The paper presents the advantages of the new composite reinforcement method and provides a possible example of its use on a real object.

Keywords: concrete, reinforced concrete, composite material, carbon fiber, carbon fiber lamellas, carbon laminate, flexibility, compressed elements, girderless overlap

Portland cement based materials occupy leading position in the construction industry nowadays. The constantly growing volume of construction and the development of modern technologies requires to provide new multifunctional characteristics to traditional cement composites. Thus, the introduction of various kinds of admixtures into the cement composition can affect its structure formation, improve physical and mechanical characteristics or give special properties to cement stone. Admixtures can be classified as accelerating, water reducing, retarding, etc, some of them are capable of providing extraordinary properties to the surface of the cement stone, some of them combine several functions at once. With the development of nanotechnology the particles of admixtures can be of nano scale. Many studies has been performed to create biocide admixtures: compounds capable of eliminating bacteria, viruses and fungi with various mechanisms of activity. The list of additives is constantly updated with new compounds and formulas. Ultrafine titanium oxide doped with bismuth can be considered as a promising admixture to cement systems with accelerating, biocide and photocatalytic properties. This article is a brief review of admixtures with biocidal activity.

Keywords: construction materials, portland cement, biocides, fungicides, fungi, titanium dioxide, photocatalysis

A huge part of the territory of Russia is located in the permafrost zone. Ensuring the reliability of pipeline systems transporting hydrocarbons in these conditions requires an integrated approach that takes into account the structure of the soil, the peculiarities of construction methods, the temperature characteristics of the soil and the transported products. Evaluation of the interaction of the pipeline with frozen ground is an important factor in the design. And the justification of the choice of an engineering solution for the construction of pipeline systems, ensuring their stable position, is one of the tasks of our research. The gas pipeline at the Kamennomysskoye-Sea field is considered as an object of research. A brief description of the features of the construction area is given. A strength calculation was performed, on the basis of which the design parameters of the pipeline were adopted. A comparative analysis of the ways of laying the pipeline was carried out, which made it possible to identify the most satisfying conditions of reliability and economic efficiency.

Keywords: hydrocarbons, pipeline, permafrost soil, subterranean laying, elevated laying, strength calculation, sustainability calculation

To solve environmental problems related to the disposal of broken bricks, the preparation of new places for building residential complexes, as well as the expansion of the resource base for the production of building materials, clay brick scrap after the renovation of buildings is considered as a major substitute for concrete mixtures. The main physical and mechanical properties of concretes were studied. It has been established that concretes obtained on the basis of coarse aggregate from brick scrap have the properties of concretes based on natural aggregates of the M250-350 grade. The use of scrap clay bricks as fillers requires a special technology for preparing the latter in order to reduce its water demand. The conducted studies have shown that it is expedient to design concrete mixtures based on secondary resources based on a complex binder consisting of Portland cement, finely ground clay brick cullet and hyperplasticizer.

Keywords: clay brick scrap, coarse aggregate, renovation, binder, hardening, concrete mix, concrete, strength

The guarantee of ensuring the safety of people and material assets in the event of a fire requires a careful approach to the design and installation of smoke ventilation. In order to evacuate people from the smoke zone in a timely manner, technical devices with a normalized limit of resistance to fire are installed – smoke valves. To determine the distribution of the pressure of the air flow in the smoke control valve over its cross-sectional area, the method of mathematical modeling is used. With the help of a mathematical model, visual modeling of the distribution of the gas-air mixture flow is carried out, a detailed analysis of hazardous factors is carried out, an assessment of the possible temperature and time of flame propagation, determination of the probable degree of smoke in the interior space and the ways of smoke movement.

Keywords: smoke, fire, ventilation system, smoke protection, smoke valve, mathematical model

The problem of controlling stepper motors of a road printer using the method of neuro-fuzzy control is considered. An algorithm for developing an intelligent control system for stepper motors is described. A training sample is obtained according to the data of variables determined as a result of modeling an automatic control system with a continuous proportional-integral-differentiating (PID) regulator. Training of the adaptive neuro-fuzzy output system by the hybrid method was performed using the MATLAB program. Transient characteristics of the control system with continuous and neuro-fuzzy PID regulators have been built. Direct indicators of the quality of the considered control systems of stepper motors have been determined, and an analysis of these results has been carried out. The use of neuro-fuzzy-PID control of stepper motors made it possible to obtain a high-quality transient process, confirmed as a result of a computational experiment.

Keywords: Road printer, stepper motor, travel printer, stepper motor, transfer function, adaptive neuro-fuzzy output system

Urbanization as a process of urban growth has only recently become controlled by the authorities. Spontaneous or accidental occurrence of any elements of the urban environment with low quality indicators is the most common phenomenon in the last century. Nevertheless, the decisions taken "from above" to create a high-quality urban environment are designed for large-scale transformations for decades to come and cannot meet the needs of citizens in solving pressing problems here and now. The article discusses modern tools and methods for the development of the area by urban residents, the principles of tactical urbanism are considered.

Keywords: tactical urbanism, urban regulation, protecting space, digitalization, city block, neighborhoods, architecture of complicity

The article contains the results of verification of the finite element design model of work on axial compression of reinforced concrete structures with combined reinforcement. Structures with combined reinforcement (with non-removable steel-fiber concrete formwork) are widely used in the construction of nuclear power plant structures. Steel fiber reinforced concrete, in comparison with heavy concrete, has increased strength and deformation characteristics, due to which it performs the function of a bearing element that perceives compressive and tensile forces. The study of the joint work of steel fiber concrete and heavy concrete is a promising area of research. The developed finite element model of a reinforced concrete structure with a fixed steel-reinforced concrete formwork with a high degree of reliability allows us to determine the stress-strain state, the redistribution of forces between the cross-section elements and the parameters of cracking during loading. The described modeling technique is recommended to be used in the study of the operation of such structures.

Keywords: NPP, nonremoveale formwork, structural testing, Ansys, stress-strain state diagram, steel fiber reinforced concrete, finite element method

The article presents a comparative analysis of some technologies for the construction of industrial floors for buildings and premises for various purposes. Their main characteristics are determined, the advantages and disadvantages of using the studied technologies are highlighted.

Keywords: industrial floors, polymer floors, topping floor coverings, self-leveling floors, polymer impregnations for concrete