The principles and results of the formation of classification tables "Auxiliary resources" and "Human resources" of the classifier of construction information are considered. The existing world experience of data classification for the development and maintenance of information models (IM) of capital construction objects (CCS) and ways of organizing data associated with the IM: OmniClass (USA), Uniclass 2015 (UK) and Cuneco Classification System (CCS, Denmark). The developed classification tables can be used in the development and maintenance of ССS IM for the identification of auxiliary and human resources, development of process maps and calendar-network planning, for the development of design documentation in terms of construction organization and estimated cost, for cost analysis of investment and construction processes and determination of labor costs.

Keywords: construction information classifier, information modeling, information model of capital construction object, classification system, auxiliary resources, human resources

Search engine optimization allows a website to rank higher in search engines. Through a lot of manipulations on working with the site, you can achieve good results in increasing the conversion of sites. Modern systems for all kinds of data analysis using neural networks can greatly improve the work on this optimization.

Keywords: website promotion, search engine optimization, neural networks, code optimization, convolutional neural networks

The provisions on the choice of vehicles for the transportation of prefabricated reinforced concrete structures are considered. Transportation can be carried out using general-purpose and specialized vehicles. The existing rules for loading onto road transport are aimed at eliminating the formation of defects in structures. For loading onto vehicles in structures, various devices for slinging are used - mounting loops, holes, or other elements provided for by working drawings for specific structures. Ensuring the safety of transported structures is possible only when studying the complex system "road - vehicle - transported structures". Factors that should be taken into account when calculating for transport effects: type of product (columns, slabs, panels, etc.) and its design features; type of vehicle (column carrier, panel carrier, etc.) with its characteristics; type of road and speed of transportation.

Keywords: transportation, road transport, loading, precast concrete, slab, truss, column, beam

The development of a decision support system for evaluating a fashionable image of a person is described. This is done by selecting a set of visual attributes from an image and comparing this set with "fashionable" patterns. Fashion patterns are set by the user himself. These are images that are defined in the system as reference images. This paper provides an overview of decision-making methods, analyzes the relevance of decision-making systems in different spheres of society. The algorithm of the program and the tools with which the image is first preprocessed are considered, then the visual attributes are highlighted. The method of making decisions for different types of attributes is given. The comparison of colors in HSL notation is considered.

Keywords: decision support system, decision making methods, machine learning, Python, model learning, image, fashion, information and analytical system, k-means method

The features of classification of construction products and construction materials are considered, and optimization of their existing classification structure is proposed. The analysis of existing domestic and international systems of classification of construction information, domestic normative and technical literature is carried out and classification features for construction material and construction product are determined. The optimization of the classification tables (CTs) based on the application of the principles of the ISO 81346 standard series and the refusal to duplicate the structure of the construction resources classifier, on reducing the number of classes and subclasses taking into account the ISO 81346 criteria and moving classes and subclasses within CTs with the corresponding changes in the code designations is suggested.

Keywords: construction information classifier, information modeling, information model of capital construction object, classification of construction materials and products

The paper discusses in detail the process of creating a tool for automated testing that allows you to test applications created for Android and iOS and also provides the results of the research that allows you to determine the reduction in time spent on testing procedures for mobile applications that arise when using the developed tool for all qualifying categories of specialists involved in testing applications. The modular method of solution construction proposed by the authors will allow the future to simply expand the functionality of the solution by adding new algorithms and testing modes, significantly increasing the ""coverage area"" of automated test scenarios.

Keywords: test automation, user interface testing, code generation, mobile testing, PageObject pattern, software testing, quality assurance, quality management, functional testing, time to market, delivery management

The paper calculates the probability of failure-free operation of parts of the supporting structure of foreign-made lifting equipment designed to perform loading and unloading operations of stone building material. When performing calculations, computer modeling of the stress-strain state by the finite element method was used. A distinctive feature of the proposed calculation methodology is the minimum required number of computer experiments, given that some of the input data are variable.

Keywords: probability of failure-free operation, lifting equipment, reliability

This paper discusses the Vue, Svelte, Solid and Lit frameworks used to create the View part of client web applications. Their design, the proposed approach to developing client applications, the problems they solve and create, their strengths and weaknesses, as well as their features and limitations in application are studied.

Keywords: Vue, Svelte, Solid, Lit, Web Components, view frameworks, client web applications, front end, rendering

The problem of ensuring trouble-free operation of field pipelines is becoming more and more urgent from year to year. The development of deposits in areas with difficult natural and climatic conditions (the Far North, Western Siberia) requires a new approach to improving the reliability of pipeline systems. Along with the search for new technologies in construction and operation, the use of modern composite materials in the production of pipes is a primary task. Analysis of the causes of failures of field pipelines in the permafrost zone allowed us to identify the main ones: corrosion, water hammer, loss of stability as a result of frost heaving of soils. Comparative calculations of steel and fiberglass pipelines allow us to recommend the latter as an alternative to metal pipelines, because they have better corrosion and abrasive resistance, low roughness and thermal conductivity, high ductility and manufacturability.

Keywords: field pipeline, fiberglass, analysis, reliability, permafrost, corrosion, water hammer, loss of stable position, frost heaving

The main maintenance of a diversification of production as activity of subjects of managing is considered. being shown in purchase of the operating enterprises, the organizations of the new enterprises, redistribution of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.

Keywords: wastewater, dephosphatation, acidification, nutrient removal

In connection with improvement of public welfare, coming to the fore are requirements enabling comfortable living, which primarily depends on conditions of indoor air environment. This article provides arguments to suggest that, during reconstruction and overhaul of residential buildings, natural ventilation systems, failing to provide the required air exchange, need to be replaced with hybrid ventilation systems, allowing to maintain stable ventilation in existing multi-storey buildings throughout the year and involving minor capital and operating costs. Based on the example of a typical nine-storey residential building, two variations of hybrid ventilation have been developed: containing an ejector and roof fans, with economic feasibility of using both determined.

Keywords: microclimate quality, air exchange, natural ventilation, hybrid ventilation, an ejector, a roof fan, economic feasibility

The advantages, disadvantages and limitations of the use of thread seams in the technological processes of product assembly are considered, the advantages of replacing thread seams with thread-free joints, ways to obtain them in order to control the competitiveness of the technological process of hot-glue assembly, the production processes of obtaining a flat thread-free connecting seam using modern technological equipment are shown, possible ways of its formation are given.

Keywords: method, control, technological process, thread-free connection, adhesive joint, seam, parts, products, thermal tape, adhesion, technological equipment

Issues of carrying out the identification of hazardous production facilities are discussed. On a real example of a survey of a warehouse of combustible substances, the implementation of a technical expertise with a conclusion drawn up on its results is illustrated. The article was written on the basis of the completed research work No. 22-78.

Keywords: hazardous production facility, identification, technical expertise, industrial safety, building structures

To improve the efficiency of low-orbit satellite Internet systems (LOSIS) and ensure high apeed of data exchange, systems supporting orthogonal frequency-division multiplexing (OFDM) technology are widely used. The use of OFDM methods makes it possible to expand the bandwidth of the radio channel based on the increase in spectral efficiency. In order to do this, OFDM systems use orthogonal signal transformation based on fast Fourier transformation (FFT). To reduce the time spent on signal processing, the article proposes to use discrete wavelet transformations of signals (DWT) implemented in modular residue classes codes (MRCC). The scientific novelty of the work lies in the fact that based on the integration of methods for constructing discrete wavelet transforms and methods for developing modular codes, mathematical models of DWT implemented in the MRCC will be created, the use of which will reduce the execution time of orthogonal signal processing in OFDM systems. This result will be achieved by parallelizing arithmetic operations on the modules of the modular code. At the same time, the use of low-bit operands makes it possible to switch from performing multiplication, addition, and subtraction operations in the MRCC to retrieving data from LUT tables. Thus, the development of mathematical models of discrete wavelet transformations implemented in modular codes of residue classes is an urgent task.

Keywords: OFDM systems, discrete wavelet transformation, parallel coding, modular residue classes code

Nitrogen oxides are one of the most common and toxic gaseous air pollutants of large industrial centers. The main difficulty of cleaning gas emissions is related to the dependence of the efficiency of the applied cleaning technologies on the NOx concentration, the frequency of emissions, the need for processing and/or disposal of products of interaction of nitrogen oxides with absorbers and regeneration of catalysts. The article analyzes the features of currently used and promising methods of cleaning waste gases from NOx, systematizes data on the effectiveness of such technologies. Based on the analysis of the processes of formation of nitrogen oxides, rational approaches to reducing NOx emissions in metal etching technology and electroplating are proposed.

Keywords: nitrogen oxides, biogenic and technogenic sources, catalytic and non-catalytic purification, selective purification, absorption purification, comparative efficiency