The article studies the relevance of online tutoring, considers various existing systems for organizing online tutoring, identifies their strengths and weaknesses, and identifies the most relevant functions of the considered services. The design of the architecture of the developed software product is considered. The goals for further research are defined.

Keywords: online tutoring, tutor, online learning, design patterns, application architecture, information system

An example of a technical examination of a cultural heritage object of federal significance is given in order to identify the fact of violation of the Federal legislation during its restoration. Recommendations are given on the preparation of a technical conclusion of this examination. The article was written on the basis of the research carried out (at the request of law enforcement agencies).

Keywords: technical expertise, object of cultural heritage, violation of the law, building structures, temple, dome, restoration

The main content of the diversification of production as the activity of business entities is considered. manifested in the purchase of existing enterprises, organizations of new enterprises, this article proposes a method of using GIS to optimize the sewage system of critical areas. The nearby territory of the Volgograd Arena stadium was chosen as the site of work.

Keywords: ArcGIS, Storm and Sanitary Analysis, Civil 3D, Sewage.

This paper provides the results obtained from the studies of polymer-bitumen binder (PBB) used for the production of polymer-modified asphalt cements (PMA). Thermoplastic elastomers produced at Voronezh Synthetic Rubber Plant, as well as at Chinese and Korean production units have been studied in order to obtain PBB. It has been established that locally-produced thermoplastic elastomers of DST-30 grade demonstrate the best performance indicators. To reduce the costs, speed up the preparation process and improve the properties of PBB, a new technology for incorporation of DST into bitumen was developed. It is suggested that DST should first be dissolved in industrial oil of the trademark IM-20, and after that the polymer solution should be incorporated into bitumen. Furthermore, the limiting concentrations of DST additive in oil were determined, which range from 10 to 30%. The influence of the DST additive on the properties of the domestically produced bitumen of the Achinsk Oil Refinery grade BND 90/130 was revealed. Studies have found that the inclusion of additives leads to an increase in extensibility, elasticity and a decrease in the brittleness temperature of bitumen, which indicates an increased deformability of the polymer-bitumen binder. Using the method of experiment planning, the optimal composition of PBB was determined: the ratio of DST and oil stands at 19% DST and 81% oil; the amount of polymer solution in the binder equals 9%. This composition was prepared in laboratory conditions, its properties were determined and compared with the requirements. The prepared composition of the PBB was recommended for industrial implementation to the roadway maintenance bodies of the city of Krasnoyarsk and the Krasnoyarsk Territory.

Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production

The optimization of the taxable base of capital construction objects is considered, this is the desire of customers and operating organizations to manage the cost of ownership of one or another technical solution, which is certainly reasonable in modern conditions, when when making a technical solution, its full cost is estimated, including the so-called cost of ownership for the entire period of the life cycle of the object, from the formation of an idea for the creation of a future object to its decommissioning.

Keywords: collapsible foundation, protective element, flow method, wind power plant, building structures

This article discusses and demonstrates the need for writing and functioning of a high-quality information security system for a modern enterprise that performs activities in various fields (industry, energy, humanitarian activities, etc.). Its role in creating conditions is also analyzed. for the economic security of the organization itself and the country as a whole. The paper presents the current classification of information security threats. The activities that are aimed at protecting data in the world of the modern world are analyzed once again, and examples of activities aimed at protecting data in the world of the modern world are given, as well as an example of the most common reasons for its leakage today.

Keywords: information security, economic security of an enterprise, information protection, threats and risks of information security, artificial intelligence

The article provides an overview of wearable devices that improve the quality of user recognition of objects of the surrounding world, reveals the process of developing an intelligent module for recognizing objects of urban infrastructure for "sound glasses" - a device designed for blind users. The functionality of the module under development, its architecture is characterized, the process and results of neural network training for object recognition are described, and an algorithm for identifying the color of traffic lights is given. The results of testing the developed software module are presented. The software module created in this work is an integral component of a fully functioning device "sound glasses", the use of which will allow people with visual disabilities to get information about events and the surrounding environment and navigate even in an unfamiliar environment.

Keywords: computer vision, neural network, smart glasses, sound glasses, visually impaired, YOLOv5, object recognition

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 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

The article considers the analysis of a manual mechanized tool for rescuing victims from rubble and traffic accidents. The statistics provided by the GUOBDD of the Ministry of Internal Affairs of Russia are given, where traffic accidents in Tyumen and the Tyumen region are displayed. The advantages and disadvantages of a mechanized rescue tool are described. A study was carried out on the modernization of rescue tools, a design for reverse sharpening of the cutting element of hand shears was proposed to prevent bending and jamming of the metal.

Keywords: power tool, hand tool, emergency, traffic accident, research

The article considers an experimental study of the stress-strain state of radial beam domes. The maximum stress values are fixed in stretched flexible elements with a peak value of 363.6 MPa. With the calculated resistance of the wire material Bp-I Rs = 410 MPa, there is a 12% load-bearing capacity margin. Note the high level of stresses in other flexible elements with values in the range from 141.4 to 274.72 MPa.

Keywords: radial beam dome, experimental studies, loading, strain gages, deformation

The problem of data transformation in which calculations are carried out in parallel streams is considered. The goal is to draw up such a plan for the parallel assignment of data by performers, in which the conditions of validity, reliability, redundancy and adequacy of data suitable for further analysis will be satisfied. At the same time, taking into account the desire to complete data conversion cycles in the shortest possible time. The use of transport-type models is proposed for the solution. In contrast to two-dimensional minimax models by the criterion of time, the possibility of transformation of information is considered, both at source points and at destination points. The proposed model allows you to take into account the time of data delivery between processing sites. The influence of possible rules for moving information packets through intermediate points on the final value of the management quality indicator is shown.

Keywords: information chains, transport task, minimum time criterion, processing costs, data reliability

This article proposes a way to automate work on the development of the construction schedule (CP) based on BIM-model. As an example we used the project of an oil well pad developed by VolgaTEKengineering LLC in Khanty-Mansi Autonomous Okrug in 2019.

Keywords: construction, building information modeling, BIM, 3D, 4D, 5D, schedule, estimate

The algorithm of the project development for the preservation of the cultural heritage object is considered. Recommendations are given for carrying out work on the preservation of the ruined temple for the possibility of its further restoration. A real example of a survey of an object of regional significance "Church of Archangel Michael" (Belgorod region, Valuysky district, village of Podgornoye) is given.

Keywords: conservation, object of cultural significance, survey, building structures, ruined temple

The article presents the results of experimental studies. The optimal time of dispersion of the mixing water together with the nano-additive has been determined. The results of experiments to determine the effect of carbon nanotubes and plasticizer on fine-grained concrete are also presented. Strength characteristics were determined for the studied compositions. Based on the data obtained, the effect of the dispersion time was determined, as well as the effect of the combined use of the SikaVC 5-500 plasticizer and carbon nanotubes "Taunit-M".

Keywords: fine-grained concrete, carbon nanotubes, ultrasonic dispersion, plasticizer