This arcticle are devoted to the modernization of housing and communal system based on the technology of "Smart Grids". The methology of developing an assessment of the effectiveness of the project of the modernization of housing and communal services facilities using the technology of "Smart Grids" is given. It from the publication that the use of "Smart Grids" technology provides energy and economic efficiency in the development of the city's energy system

Keywords: Smart grids, "Smart City", centralized heat supply systems, individual heat supply, evaluation of the economic modernization project, key performance indicators

Frameless arched coverings are one of the varieties of prefabricated structures for various needs: sports facilities, hangars for various equipment, warehouses for vegetable storage, etc. They are economical compared to other structures, since due to their light weight they do not require massive foundations, compared to frame and wall structures and can be laid with a small depth, which in turn saves on land work. Due to this, they arouse interest in their design and in the development of structural improvements, especially for conditions with a sharply continental climate with high precipitation and strong winds. In this paper, frameless arched coverings made of U-shaped profiles were considered, depending on the span of the coating and on the method of insulation for the sharply continental climate of the Republic of Khakassia. As a result, we have received that constructive solutions are required to strengthen these coatings for large spans, for example 15, 20 and 25 meters, or measures to reduce the snow load on the coating.

Keywords: frameless arched coverings, U-shaped arched profile, sharply continental climate of the Republic of Khakassia, polyurethane foam, mineral wool

The article deals with the issue of the influence of ambient temperature on the initial height of the flare emissions rise. The paper presents full-scale and theoretical studies of flare emissions operating near a temporary residential complex. In the course of the work, a series of images of flare emissions at different ambient temperature conditions was carried out and their subsequent comparison with the theoretical model was carried out. Field studies verify the theoretical model and establish that the initial height of the flare emissions depends on the ambient temperature and has an inverse proportionality.

Keywords: Flare, flare emissions, atmospheric air pollution, PM2.5

To ensure the correct and continuous operation of all electronic devices, it is necessary that all components of these devices correspond to their declared characteristics. In this article, an information-measuring system for incoming control and analysis of the quality of components is being developed. Structural and functional diagrams of the system were developed. A natural experiment was carried out.

Keywords: information-measuring system, input control, quality analysis, components

The article contains information about the factors influencing the attitude of consumers to tourist offers, and provides recommendations on the organization of an effective advertising campaign of a travel company belonging to the category of small and medium-sized businesses in the vastness of the global network.

Keywords: campaign, advertising, tourism, internet, website, direct, marketplace, query, statistics, Iran

The electrophysical and mechanical properties of a piezoceramic material based on CTS are investigated. A number of features in the behavior of the electrophysical properties of the material in the temperature range located significantly below the low-frequency (1 kHz) maximum of the dielectric constant T_m = 160℃ have been revealed. The obtained results indicate the proximity of the studied material to ferroelectric relaxors, in particular, the low coercive field E_c~5 kVcmcm, the significant dependence of T_m on the frequency and amplitude of the measuring field, as well as the behavior of the velocity of longitudinal ultrasonic waves in this ceramic. It is shown that the elastic properties of this material are very close to ferroelectric relaxors, having a high malleability in a very wide temperature range. At the same time, the squareness of the polarization loops at relatively low temperatures indicates the manifestation of the classical properties of the ferroelectric during the polarization switching processes, and not the "freezing" processes characteristic of ferroelectric relaxors. From the results obtained, it can be established that this composition will be promising for use in the actuators of adaptive optics systems and precision positioning devices due to the high values of piezomodules.

Keywords: PZT system, ferroalloy ceramics, dispersion, polarization, elastic properties, blurred phase transitions, curie temperature, depolarization temperature, ferroelectric relaxor, rhombohedral phase, tetragonal phase

The effect of a zeolite support on the physicochemical properties of cobalt catalysts was studied on a series of samples with zeolites ZSM-5, HY, and NaX. The catalysts were obtained by precipitation followed by mixing the precipitate with a zeolite support. Their properties were characterized by BET, TPR, TPD-H2, IR spectroscopy. The results of the analysis show that the type of zeolite support affects the specific surface area, reduction of deposited cobalt, and the structural properties of the active component of catalytic systems.

Keywords: precipitated catalyst, cobalt, zeolite, dispersion, specific surface area, active component, synthetic fuel, degree of reduction

The simplest, most reliable and sufficiently accurate method of dosing bulk products is batch dosing by volume using measuring containers. The article considers a mathematical model of a volumetric dispenser. The combination of several methods of regulating the supply of bulk materials during batch dosing is ensured by building an accurate model of the drum dispenser.

Keywords: mathematical model of a drum dispenser, dosing process, friction, dynamic coefficient of friction, static coefficient of friction, bulk material

The article discusses topical issues related to modeling the physical processes in the operation of solar photovoltaic batteries. In the course of the research, the simulation of photovoltaic batteries was carried out in the MATLAB / Simulink / Simscape simulation environment. The output current of the solar cell is chosen as the main electrical parameter. The model is tested using the characteristics of the ABi-Solar P60270-D polycrystalline photo module.

Keywords: photovoltaic batteries, MATLAB / Simulink, voltage, solar energy, capacity, defects, control

The article presents the results of the development of the combined medical measuring device - an ophthalmopneumogoniometer, with the help of which it is possible to measure intraocular structures and pressure . Based on the results of the analysis of the subject area, the author proposed a structural diagram of the device, considered technical solutions of its individual elements.

Keywords: ophthalmopneumogoniometer, ophthalmogoniometry, intraocular pressure, eye optics

The standard frequency spectrum according to regulatory documents is divided into three frequency bands. The third frequency range is currently not well studied and is represented on the standard sound insulation graph by a straight line. When sound is applied to the plate, at a certain frequency, bending waves in the plate are replaced by shear and longitudinal vibrations. Having considered the processes of propagation of shear and longitudinal waves in a soundproof barrier, it is possible to obtain an adequate physical model of wave propagation in the third frequency range, as well as to form an effective method for calculating the sound insulation of air noise. The physical model of sound insulation in the third frequency range is based on the use of objects in wave propagation media with concentrated parameters: coordinates, weight and velocity. The concepts of "concentrated" and "reduced" masses are introduced. Using the law of conservation of the amount of motion and the law of conservation of kinetic energy, formulas are derived for finding sound insulation in the third section of the standard frequency spectrum. The influence of shear waves on the third frequency range of the standard spectrum is considered. Formulas are given for calculating the initial frequency of occurrence of these waves and for finding sound insulation. The regularities of the appearance of the third section of the standard frequency spectrum are determined. The influence of longitudinal waves on the third frequency range is considered. Formulas for finding the limiting frequency, after which longitudinal waves appear in the partition, and formulas for finding sound insulation due to the action of longitudinal waves are obtained. The refinement of the sound insulation formulas using the modulus of elasticity, taking into account the creep of concrete, is shown. A computational experiment is being carried out to calculate sound insulation for building partitions made of heavy concrete of different thicknesses. Examples of graphs for calculating the sound insulation of air noise according to the method under consideration and according to the methodology of regulatory documents are presented.

Keywords: sound insulation of air noise, reduced mass, concentrated mass, method of discrete (concentrated) parameters, longitudinal waves, shear waves

Recently, the main principles in the field of municipal solid waste management are recycling and reuse of secondary resources. Information technologies are widely used in modern waste management technologies. Problematic is the issue of recognition of the sorting object on the waste conveyor. There are various robotic systems for automated separation of sorting objects. The article provides a description of the system in the process of "recognition - capture - movement" of a sorting object on a common conveyor. A group of sensors is used to identify objects on the conveyor, while simultaneously fixing the coordinates of each identified object on the surface of the conveyor belt. Information about the coordinates and properties of each identified object is transmitted over the communication line to the control panel by manipulators, which capture individual identified objects and mix them into special containers.

Keywords: sorting, waste, automation, recognition systems, sensors, manipulators

This article discusses the development of a magnetometer calibration device, which is controlled by a microcontroller, Arduino [1, 2], which can receive, process and transmit the necessary commands to the peripheral part of the installation using the written program code. The need for buffer circuits and elements allows you to control I / O devices. With their help, interface hardware is implemented. Structural and functional diagrams of the device were developed. And also the calculation of the parameters of the Helmholtz coils was carried out, their 3D model was built. With the help of the Gaussmeter, a full-scale experiment was carried out, which confirmed the operability of the device and its effectiveness.

Keywords: control and measuring device, induction, Helmholtz coils, gaussmeter

This article discusses the development of a digital weather station with the measurement of geomagnetic field parameters. The advantage of the developed device is the possibility of simultaneous stable and correct operation of several sensors (namely 15), measurement accuracy at long distances (up to 300 meters). Structural and functional diagrams of the device have been developed. The voltage regulator of the device is designed in the Micro-Cap circuit analysis program. Experimental studies of the finished device were carried out.

Keywords: digital weather station, geomagnetic field, magnetic sensor, Arduino

It is not always possible to use anchoring structures for securing vertical walls of excavations. Most often spacer structures made of pipes have to be used. A special distribution belt consisting of I-beams is required to redistribute the spreading forces from struts and the ground. This article presents the results of a study of structural options and the design of a support table for the spacing structures of walls in the ground (vertical walls of excavation sidewalls).

Keywords: Distribution belt, I-beam, support structure, table, excavation, spacer structures, T-bar, wall in the ground