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

This work is carried out as part of the study of the frame-rod structure with elements of thin-walled profiles. The results of a numerical study of a three-bolt connection of a thin-walled galvanized plate 1.5 mm thick with a plate of 3 mm thick on adjustable voltage bolts are presented. The calculation models are created by volume elements in Ansys software taking into account the strength properties of materials.

Keywords: galvanized thin-walled profiles, bolted joints, rod structures, thin-walled profiles, finite element method

The article studies the subject of human settlements with decentralized power supply, included into a locally isolated power supply complex. The basic integrated measures were determined for settlements power lines daily load curves. The results are presented, for dependency assessment between the integrated measures for daily load curves and the number of the settlement’s inhabitants. The dependency has been proven to be effectively described by a second order equation. For the dependency, the correlation coefficient, the determination coefficient and the average approximation error have been given.

Keywords: Power line load curve, decentralized power supply zone, locally isolated power supply complex, approximation

This article presents the results of the study of pollution of components of the natural environment (air, soil, water) and wastes located in the territory of the landfill near the village of Samofalovka, Volgograd region, and carried out an assessment of the accumulated environmental damage.

Keywords: Landfill, accumulated environmental damage, pollutants, exposure level

This study investigates possibilities for identifying additional deposits of polymetallic ores based on geophysical studies that use ground-penetrating radar (georadar). Such studies can render a deposit significantly more attractive from an economic standpoint. Experimental methodological work was carried out to compare the geological data of preliminary exploration and georadar exploration with GROT 12 georadars.

Keywords: ground-penetrating radar, radargram, geological section, profile, anomaly, ore body, exploration, video pulses

Today, one of the important indicators of production efficiency is the degree of informatization and automation of technological processes of the enterprise. Many shoe enterprises are in dire need of such tools as a quick estimate of the labor and material resources needed to manufacture products. As one of the possible options for meeting such needs, an integrated system developed by the authors of the article is proposed, the introduction of which is directly capable of affecting the competitiveness of the enterprise. The article proposes to carry out the procedure of integrating the process design system with the design system and automated enterprise management system. The article provides a detailed description of the developed information system: describes its functionality; diagrams of interaction of information processes occurring within the system are presented; describes the interaction of system components; describes the structural components of the system.

Keywords: automated control system, software, technological process, footwear production, database

The article deals with the survey of transport and operational condition of the highway R224 " Samara-Orenburg in which it was found that the roadway surface is in poor condition due to the presence of transverse cracks, ruts and pits. In a survey of 5 existing culvert structures were identified unacceptable defects in the structure. Based on the foregoing, the specified section of road be repaired in accordance with GOST R 50597-2017 “roads and streets” . Currently, economical and mobile methods of inspection of road structures are of particular relevance. Conducting engineering surveys of the GPR system MIRA was determined the constructive layers of road clothes light. The decision on milling to a partial thickness of the pavement that runs recyclers WR 4200, with the subsequent device of asphaltgranulate type To

Keywords: pavement engineering, GPR applications, roads, surveys, MIRA GPR systempurposes of ensuring flexibility of production

As a result of analyzing various factors that reduce the level of professional working capacity of the driver of passenger vehicles, a method of pre-trip computer assessment of his professional readiness has been developed. The software for personal computers and mobile devices has been developed, which allows to carry out express diagnostics of the functional states of the driver, based on test tasks and mathematical analysis of the obtained values.

Keywords: passenger driver, express diagnostics, pre-trip performance, functional status, testing methodology

The modern market of goods and services is developing dynamically, which creates a need for new technical solutions that can meet changing needs. One of the main ways to increase the efficiency of commercial activity is the automation of processes and their interaction. The article describes one of the possible approaches for solving the problem of automation in the field of automation of business processes in the drug trading system. As such a solution to the task of automating business processes arising in the field of trade in pharmaceuticals, the AptekaPro information system was proposed. This article provides a detailed description of the system, its structure and principles of operation. A description of the main modules of the system and their purpose is given. It describes the main advantages that can be achieved as a result of the introduction of such information systems into commercial activities.The article was published as part of the implementation of the program of the International Forum "Victorious May 1945".

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

This article presents the results which purpose of cases of intentional distortion of "objective" ratings based on individual indicators. The aim of the study was to build an algorithm for determining unfairly placed places in the ranking as a result of manual adjustment. The main tool is the identification of the weight coefficients of private ratings with a known form of the functional dependence of the overall rating. The analysis of techniques of creation of one of popular Russian ratings was for this purpose carried out, mathematical models of dependence of the general rating of higher education institution on its private ratings are received. It was revealed the presence of subjectivity in the construction of the rating, which manifests itself in the form of an unfair score. Standard methods do not allow to reveal such non-random "emissions" and do not provide an objective assessment. The offered algorithm allows to find such "emissions", to exclude them from selection and define fair values. The offered algorithm can be useful for heads of universities to check the correctness of the occupied place in the ranking of their organization and understanding of their real position among other universities.

Keywords: statistical analysis, multiple linear regression, ordinary least squares, approximation, rankings, indicators, higher education

Examines the management of construction projects through the engineering building. The methods of improving project support taking into account modern management capabilities at each stage of the project life cycle are proposed.

Keywords: project; construction, management company; resources; quality, support, organization, control

The results of experiments on the Moscow – Ekaterinburg highway are discussed. The principal possibility of using broadband (150-600 kHz) HF signals for transmitting information and for studying the fine structure of the ionosphere in various heliogeophysical conditions is shown.

Keywords: broadband signal, ionosphere, fine structure, noise resistance, operational forecast, information transfer, multiple-beam structure, separation of signals, base frequencies, signal attenuation, long-term prediction

The article investigates the process of organization of the public passenger urban transport of the city of Rostov-on-don and regularities of the process of organization of the public passenger urban transport of the city of Rostov-on-don, the relationship of the factors influencing this process.

Keywords: preferential categories of passengers, passenger traffic, transport mobility, route network, public transport, regular passenger traffic, automated monitoring of passenger traffic

The article describes optimal mechanisms of wideband transmitter and receiver (150-600 kHz) for information transfer and for researching of thin structure of ionosphere in different helio-geophysical conditions. The proposed schemes give an opportunity to receiving with division of beams and to use the energy of all waves for increasing interference immunity.

Keywords: wideband, frequency of sounding, synchronization, antenna, reference generator, processor, band-pass filter, interference immunity, multipath propagation, phase, program