This article concentrates on the issues of radio wave propagation in forest conditions. The issue of representing the forest mass as a heterogeneous structure with a low dielectric constant is considered. Calculation and comparison of radio signal attenuation using several empirical models were carried out. It is shown that empirical models take into account the heterogeneous structure of the forest when moving from free space to the forest.

Keywords: radiowave propagation, wooded area, empirical model, radiowave attenuation, path loss, ground mobile communication, electrodynamic characteristics of a heterogeneous structure

Thermal imaging technology has become one of the most valuable diagnostic tools for inspecting and inspecting buildings and structures. This article describes the features of this method, the history of its creation, the basic principles of thermal imaging cameras. The authors of the article show the scope of thermal imaging technologies and their place in the construction industry. This article describes in detail both the positive aspects of thermal imaging technologies and their shortcomings. The authors concluded that thermal imaging cameras are a universal tool, and new innovative ways to use them have become a key technology for construction inspection work around the world.

Keywords: thermal imager, thermography, thermal imaging device, building inspection, reconstruction, energy audit, construction diagnostics, thermal imaging

In this research the research problem of the liquid cooling system of supercomputer processors on nanomagnetic liquids by numerical modeling and the pilot study of processes of heat convection in the studied object is set. In article results of numerical modeling and the pilot study of process of the heat transfer are given in the heat exchanger of the liquid cooling system of supercomputer processors on the basis of nanomagnetic liquids, or ferroflyuid at influence of magnetic field impact assessment of magnetic field on the thermal resistance of the system and coefficient of heat convection the wall liquid Is made at different strengths of magnetic field. The numerical model of process of the heat transfer in the system the processor heat exchanger was investigated.

Keywords: processor, thermal resistance, Laplace equation, liquid computer cooling system, ferrofluid, nanomagnetic liquid, heat transfer, heat transfer coefficient

metamaterials, microwave, antennas, diffraction, Maxwell equations, electromagnetic waves, the dielectric constant

Keywords: metamaterials, microwave, antennas, diffraction, Maxwell equations, electromagnetic waves, the dielectric constant

The problems of irrational expenditure of energy resources leading to the depletion of natural reserves of fossil fuels and environmental pollution are considered. The analysis of the main issues considered in the course of improving solar heat supply systems is carried out. Current scientific, practical and statistical data are systematized, in the process of which ways to increase the efficiency of active solar systems are proposed.

Keywords: solar heat supply systems, energy saving, thermal energy accumulation, energy storage, thermal energy conservation, solar installation

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

Models of monitoring program generation systems are proposed. to significantly reduce the cost of time and other resources for monitoring complex technical objects. Systems are considered at several levels: subsystems and modules, communication links, use cases, physical representation. A technique for adapting system models to subject areas.

Keywords: complex technical object, monitoring, models of software systems, program generation

Automation of agriculture is currently a promising and actively developing branch of robotics. At the moment, there are many foreign analogues offering ready-made solutions for automatic control of sowing crops. However, in Russia, most of the sowing is carried out on mechanized plants under the mandatory supervision of a highly qualified specialist in the maintenance of the plant.

Keywords: seeding control, microprocessor system, selection, seeding algorithm, system architecture, hardware, system structure, layout base, management methodology, import substitution

Automation of agricultural production is one of the main tasks in the modern world. One of the areas of agriculture, which is primarily in need of automation, is selection, since manual labor is used in most technical operations. This article discusses the software with which the system of intelligent seeding will be implemented.

Keywords: intellectual seeding, software, selection, seeding algorithm, interface, hardware, process structure, data block, calculation procedure, import substitution

Cities around the world lack land resources, despite the fact that the housing stock is in a state of extreme deterioration. The solution to this problem becomes such a concept as renovation - the process of updating urban space. This mechanism is currently provided for in the Town Planning Code of the Russian Federation, but for a number of reasons its implementation in practice is limited. Renovation is necessary in the prevailing conditions of the modern world in order to adapt the spaces of former industrial zones for their use in an already new format. The vast majority of industrial companies cease to operate within cities, and their territories turn into neglected neglected development, isolated from the urban social environment. The authors of this article reviewed and analyzed the benefits of implementing renovation programs for residents of the Russian Federation.

Keywords: renovation, eco-construction, depressed territories, modernization of urban areas, development of regions, redevelopment buildings

Models of monitoring program generation systems are proposed that can significantly reduce the cost of time and other resources for monitoring complex technical objects. Systems are considered at several levels: subsystems and modules, communication links, usage scenarios, physical representations. A technique for adapting system models to subject areas is proposed.

Keywords: complex technical object, monitoring, models of software systems, program generation

The article contains information about the results of the analysis of features and world experience in the application of well-known types of 3D printing technology in the construction industry. The advantages, disadvantages, and the identified area of rational application of technology in various construction cycles of the main period of the creation of buildings and special structures are clarified.

Keywords: construction, 3D printing, 3D building printer, concrete mix, concrete extrusion, 3D spraying, labor costs, pace of construction, concrete work, layer-by-layer extrusion method

The article discusses the methodology for deploying dual-purpose military infrastructure facilities, including a model for optimizing the placement of the service network in garrisons, where it has already developed, and the question is its reconstruction and expansion. The calculations are made on the example of service in military camps. To optimize the placement of the service network, a criterion is adopted to minimize the service time.

Keywords: garrison service, service network, service center, hierarchy, gravity model of gravity, the theory of central places, commodity circulation, a military town

This article presents the results of solving the problem of silting of the Krasnodar reservoir for the rational use of water resources of floodplain territories. The forecast of changes in sediment for the future is determined taking into account an increase in the overgrowth of the reservoir, further processing of the coastline, as well as a decrease in afforestation and an increase in cultivated areas in the river basin. Kuban. Given these factors, the increase in sediment volumes in the reservoir alignment will increase annually by 0.13% and by 2036 will amount to 18.01 million m3 per year. The main measures to improve the transport of sediment into the dead volume bowl are considered, and ways to solve the siltation problem by clearing the flooded riverbeds are proposed to be carried out by the method of stirring, since this method is used in reservoirs with flow, because its essence lies in the fact that silt sediments are agitated with the help of a floating dredger with water jets and the pulp is not sucked into the dredger, and suspended sediments are transported by the flow of water into the bowl of the "dead" volume of the reservoir. The use of this method is recommended for economic reasons, since it is 2.4 times cheaper than cleaning with pulp removal. The actual use of the Krasnodar reservoir is currently consistent with the design purpose. Sediment runoff in the river basin Kuban is determined by water erosion. Water erosion is especially pronounced in the mountainous and foothill parts, which is facilitated by the mountain-valley relief and large slopes of river channels. Precipitation falling on the underlying surface, in particular intense downpours, heavy snowmelt, debris material is washed off the catchment area into the river, forming a sediment runoff. An important role here is played by the composition of the rocks that make up the catchment, its afforestation, agrotechnical and water management measures carried out on the catchment area and in the riverbed.

Keywords: siltation, reservoir, water resources, floodplain territories, rational water use, water resources

Within approaching the plane-stress state the problem of a high-speed rotating disk being under side pressure is considered. Within the model of a perfect rigid-plastic body and the Mises yield criterion the values of external parameters for which the plastic zones appear have been defined. The stresses in plastic zones are obtained from the solution of the Cauchy problem, which includes two differential equations to define the stress tensor nonzero component. In order to estimate the stress state in the elastic zone the equivalent stress is introduced. The maximum allowable values of external parameters are obtained from the solution of the problem when the disk is in the limit state. The numerical results are represented as the stress vector hodograph.

Keywords: the plane-stress state, Mises yield criterion, the equivalent stress, an elasto-plastic solid, a rotating disk, a stress vector hodograph