The purpose of this study is to develop a survey methodology that allows you to determine the composition of the common property of an apartment building, which is used in the operation of non-residential premises. In the process of theoretical research, analysis methods and results of field observations were used. The results of this study are the classification of non-residential premises that are not part of the common property of an apartment building, a list of elements of an apartment building to be examined to assess their use in the operation of non-residential premises, recommendations to a specialist on the list of documents necessary for this survey. These results are of practical importance for specialists in the field of inspection of buildings and structures when resolving disputes in the practice of operating apartment buildings and non-residential premises that are not part of the common property of a residential building.

Keywords: non-residential premises, classification of non-residential premises, survey methodology, apartment building, common property, list of common property elements, composition of common property, operation, housing stock

The article analyzes the Russian experience of renovation of port facilities. The purpose of the study is to identify best practices and directions for the development of PC facilities during their transformation. The experience of the cities of St. Petersburg, Nizhny Novgorod, Tyumen and Kazan is being studied. The best Russian practices in the following aspects of PC renovation are summarized: a) architectural and artistic, b) urban planning; c) functional and spatial. The resulting number of promising approaches and trends creates a methodological basis for the integration of these facilities into the structure of the city.

Keywords: port complex, renovation, transformation, water area, interaction, water facade

Phosphogypsum is a large-scale solid waste from the production of phosphoric acid by the extraction method. The volume of accumulated waste in the world amounts to hundreds of millions of tons, and their disposal is becoming increasingly important. The article provides a brief overview of recent research on the use of phosphogypsum as a component of building materials. A list of the main factors of the negative impact of phosphogypsum waste on the environment is given, as well as the main impurities in its composition that reduce the quality of the resulting materials and methods for eliminating these impurities. It is shown that of the many products that can be obtained using phosphogypsum, the most widespread are construction and road materials, in which it is proposed to be used as a replacement for natural gypsum and sand.

Keywords: phosphogypsum, environment, building materials, road coverings, modifying additives

The use of a solid analog and the involvement of an appropriate theory of stability made it possible to perform mathematical modeling and determine the parameters of the critical state of cylindrical mesh shells depending on the geometric characteristics and the number of half-waves of the shape of the loss of stability. The values of the critical load of cylindrical mesh shells are determined taking into account geometric and force factors. According to the results of calculations, the patterns of changes in the number of half-waves of the form of loss of stability and obtaining the minimum value of the critical load under the condition of maximum approximation of flexural and membrane stiffness are revealed and analyzed. A numerical example is shown in which the values of critical load and stiffness are determined, taking into account possible forms of loss of stability. The patterns of changes in these indicators for a given number of half-waves are established and analyzed.

Keywords: cylindrical mesh shells, mathematical modeling, critical load, stability, stiffness, number of half-waves

This study will examine the historical formation of the architecture of places of detention. The author gives space to the volumetric and planning transformation of prisons, examines the history of their emergence in stages and reveals the connection of these changes with the changes in the state and society as a whole. The study deals with the issues of restraint of freedom from inside and outside the penitentiary institutions, and partially touches upon the connection between fortification and penitentiary institutions in the sense of the continuity of the urban, architectural and landscape planning techniques of defence used. The study also presents examples of modern layouts; the types of layouts and the architectural means and techniques used in them to create a safe and comfortable environment are summarised in a table as material for analysis. In addition, as the results of the study, the main issues and directions of further development of prison architecture are indicated, and the author proposes models of optimal architectural and planning organisation in terms of security, surveillance and access control.

Keywords: security, prisons, penitentiary architecture, architecture, detention centres, design

Expert work has been carried out to establish quality indicators for three types of concrete paving slabs: "Auriko", "Paving stone", "New City". The tests were carried out on selected samples in accordance with GOST 17608-2017. According to the test results, it was determined that only the samples of "Paving stones" tiles meet the requirements of GOST, other types of tiles revealed non-compliance of the studied samples with GOST 17608 in terms of water absorption and frost resistance.Frost resistance tests for Aurico and Novy Gorod product samples were interrupted after 15 freeze-thaw cycles due to the destruction of the samples.

Keywords: paving slabs, concrete, compressive strength, frost resistance, surface defect "sink"

In the construction sector, the reform of design and survey work allows us to take a fresh look at the state of engineering and geological research. The use of software systems provides an opportunity to automate this process during construction, reconstruction of buildings and structures in order to avoid the formation of landslide processes and reduce man-made risks. Limit equilibrium methods are used to determine the stability of a slope or an underground structure. Therefore, the purpose of the study in the article was to conduct engineering and geological surveys using various methods and then calculate the stability of landslide slopes. The sliding surfaces with the lowest coefficients of stability margin were selected by the optimization method for the calculated slopes.

Keywords: integration, reformation, method, construction, soil, landslide slope, man-made risk, surveys, automation

The paper investigates the possibility of obtaining a luminescent material by heat treatment of phosphogypsum at a temperature of 800 degrees Celsius. It is shown that it is not enough to achieve the result of heating the system to a given temperature, the luminosity of the samples is practically absent.For phosphogypsum subjected to heat treatment at a temperature of 800 degrees Celsius for 60 minutes, it was found that images obtained in the presence of 50-150% moles of citric acid showed the most pronounced luminosity. The luminosity of samples with starch in the amount of 50-75 mol% was worse (by about 50%). The use of coal as a reducing agent under given conditions led to the formation of samples with the lowest luminosity. An extreme change in the dependence of luminosity on the amount of the introduced reducing agent with maxima of 25-75% (mol.) was revealed. It is suggested that the luminescent ability of the reduced phosphogypsum is associated with the formation of the composite material calcium sulfate/sulfide.

Keywords: heat treatment mode, luminescent material, phosphogypsum recycling, reducing

The article is devoted to the study of the flow rate depending on the pressure in the gas supply system of the plasma head. The problem was solved by conducting a computer experiment with subsequent verification of the results by a full-scale experiment. The laboratory plasma installation MAK-10 assembled on the basis of the IMET UB RAS, used in the processes of coating, powder production and surface modification of parts, was simulated. The computer experiment was carried out using the SolidWorks Flow Simulation software package. As a result of the work performed, the distribution of the flow rate along its axis was demonstrated during the operation of the plasma installation with a pressure in the gas supply system of 0.1; 0.2 and 0.3 MPa. Recommendations for conducting coating, powder production and surface modification processes have been developed, which have practical benefits for consumers of process equipment.

Keywords: mathematical model, flow, velocity, pressure, plasma method, powder production, coating, surface modification

The study of the influence of the number of layers of glass composite pipe on dynamic loading, including operation in seismically active areas, is conditioned by compliance with the requirements of the latest documents in the field of construction standard control. Mechanical characteristics of glass composite pipe depend on elastic and strength properties of glass fibre, silica sand and binder, their ratio and bonding strength between layers. The key parameter of glass composite pipe compliance with the given requirements is ring stiffness. The strength of the composite material is determined using the rule of mixtures. The properties of the glass composite pipe using the rule of mixtures are determined. The influence of the number of layers of glass composite pipe on its elastic-strength properties is considered. The experiment with uniaxial compression of the pipe link is simulated in Midas GTS NX software package. The maximum load at which the sample reaches 5% deformation was determined. According to the results of the study, it was obtained that the best elastic-strength and operational properties have three-layer composite structure.

Keywords: glass composite pipe, layer scheme, earthquake resistance, continuous winding method, elastic-strength properties

This study is devoted to analyzing the capabilities of the Python programming language when creating information systems for detecting dangerous objects in luggage. As a result, a recognition system architecture was developed, including the following main components: an image processing module, a machine learning module, a database and a user interface. The software chosen is Python with the libraries PySide6, SQLite, Numpy, YOLO. The information system was implemented and tested on real data, which confirmed the correctness of the selected capabilities and technologies of the Python language for the development of security information systems.

Keywords: information system, security, neural network, machine learning, pattern recognition, performance

This article discusses the possibility of changing the formulation of an anti-icing mixture directly in a combined road machine, by integrating data from road weather stations and modernizing a universal spreader. To quickly change the recipe of the distributed mixture, using the example of a sand-salt mixture, it is proposed to use a two-hopper universal spreader with an automated control system. The recipe for the distributed anti-icing mixture is calculated depending on weather conditions. An example of LabVIEW software is given to solve the local problem of finding a current weather station.

Keywords: automation, road machine, universal spreader, de-icing materials, composition selection, control system

Destructive information in text is widespread and dangerous for children and teenagers as well as for adults. Current methods of searching destructive information in text: “keyword search”, “reverse document frequency method” have a number of disadvantages that can cause false positives, which reduces the accuracy of their work. In this article we consider a new developed method of searching destructive information in text, which is used in Python module. This method utilizes Spacy, pymorphy3 libraries which allows us to examine the sentence in detail and delve into its meaning. The developed method reduces false positives and thus increases the efficiency of its use. The paper shows the schemes of sentence parsing, the algorithm of the new method, as well as figures demonstrating its work. The comparative analysis of the new method with analogs is shown.

Keywords: Spacy, disruptive content, information security, TF-IDF, keyword search, pymorphy3, Net Nanny, CyberPatrol, Oculus, child protection

With the development of technology, access systems with higher accuracy and levels of reliability have emerged. Access systems are a fascinating and important area of expertise, requiring knowledge from a wide range of disciplines such as information security, electronics, programming and systems administration. Therefore, its further development requires highly qualified specialists. In this regard, to involve the younger generation, educational programs and courses aimed at training and intellectual development of adolescents are appearing. To practically reinforce the acquired knowledge, various educational kits and open-source laboratory stands are used, on which students can try their hand and implement ideas. This project has prospects for further development for work not only in terrestrial laboratories, but also at orbital stations - this aspect is especially interesting for young explorers of the Universe. The goal of the work is to create a safe and convenient access system for users, providing a high level of security and ease of use.

Keywords: research, experiment, payload, space, remote control, self-determination, career guidance

The article discusses the process of applying a radio-absorbing coating to the surface of plastic. Vacuum plasma methods make it possible to effectively apply thin films to various surfaces. The main parameters affecting the quality and effectiveness of the properties of the applied coatings are considered.The result of the studied coatings obtained by the vacuum-plasma method showed that a sample coated with aluminum nitride, the transmission coefficient through which has not changed compared to the case of free space, is not shielding, and a sample coated with titanium metal, introducing additional attenuation of the order of 5 dB indicates the presence of absorption.

Keywords: electromagnetic radiation, thin films, application technology, radio-absorbing coating, radiation protection, magnetron.

One of the main conditions for ensuring information security is to prevent the spread of false and intentionally distorted information. Filtering the content of Internet information resources can serve as a solution to this problem. Recently, an approach using methods and mathematical models of artificial intelligence has been increasingly considered for the analysis and classification of disseminated data. The use of neural networks allows you to automate the process of processing a large array of information and connect a person only at the decision-making stage. The paper focuses on the learning process of a neural network. Various learning algorithms are considered: stochastic gradient descent, Adagrad, RMSProp, Adam, Adama and Nadam. The results of the implementation of text subject recognition using a recurrent neural network of the LSTM model are presented. The results of computational experiments are presented, an analysis is carried out and conclusions are drawn.

Keywords: information security, text analysis, artificial intelligence method, artificial neural network, recurrent LSTM network