The possibility of increasing the reliability of assessing air pollution through the use of probabilistic methods is shown. Evaluation of quality indicators on a quantitative basis made it possible to find an error of the first and second kind in assessing the quality of the atmosphere. Based on the Bayesian approach, dependencies were obtained for estimating and predicting atmospheric pollution in the area of ​​a city that does not have a stationary post, based on data from stationary posts in other areas.

Keywords: atmosphere quality, reliability of the estimate, probabilistic methods, quantitative characteristic, error of the first and second kind, Bayesian approach, a priori probability, posterior probability, likelihood of a quantity

The article describes an approximate analytical method for calculating the humidity regime of multi-layer building enclosing structures. The novelty of the proposed method consists in using an analytical dependence to determine the position of the possible condensation plane obtained as a result of the study of the function representing the difference between the partial pressure of water vapor in the considered section of the enclosure structure and the partial pressure of saturated water vapor at the extremum. The results of calculating the humidity regime of the external wall of a residential building under construction in the city of Samara, using a monolithic bespeschany expanded clay concrete with a density equal to 600 kg/m3, are presented. The assessment of moisture accumulation in the considered external wall both for the annual period of operation of the building, and for the period of months with negative temperatures, showed compliance with the regulatory requirements for heated rooms

Keywords: enclosing structure, humidity mode, moisture transfer, vapor penetration resistance, water vapor, condensation plane

This article discusses the calculations of the feasibility study for the expansion of housing construction in the city of Taganrog. The choice and justification of the number of storeys, design scheme, space-planning solutions for new construction for the development of design solutions is based on natural and climatic, urban planning, social and economic factors that are specific to each specific territory. To implement effective design solutions in housing construction, it is necessary to consider options for both new construction and reconstruction of the existing housing stock of the city. Technical and economic calculations for the reconstruction of existing residential buildings include determining the effectiveness of the demolition of old existing buildings, construction of new facilities of various functions in the liberated territories, modernization of existing residential buildings and other measures to improve the quality of life of the population living in a particular city. Effective design solutions for the development of housing construction in Taganrog require an economic assessment of possible options, which must be worked out in the pre-project documents, such as a feasibility study of the construction of objects.

Keywords: feasibility study, Economics of urban planning, pre-project preparation, investment efficiency, urban planning, construction Economics, effective design solutions, design, housing construction, housing stock

The equations of multiple regression of air quality from factors affecting external sources of emission in the urban environment are obtained. A prototype of a forced air supply ventilation valve with air purification, placed in the outer wall of the building, using various sorbents together with a photocatalytic filter (a thin porous plate coated with titanium dioxide next to two UV lamps, UV-A range, 365 nm, 6 W each) was developed. Full-scale studies of five options for purifying the supply air were carried out. High quality of outdoor air purification from pollutants has the following options: shungite; zeolite; silica gel; photocatalytic filter, its purification efficiency was 96.39-99.98% for carbon oxide (II), 96.39-97.89% for phenol, 95.76-97.78% for formaldehyde, and 93.97-95.12% for aliphatic hydrocarbons (C1-C5). The results obtained can be used in multi-storey construction.

Keywords: forced air supply valve, prototype, pollutants, sorbent, shungite, zeolite, silica gel, photocatalytic filter

The authors of the article developed an autonomous energy supply system for remote military facilities and settlements using liquefied natural gas. A characteristic feature of the developed system is a simplified constructive design of cryogenic equipment for liquefied natural gas, increased reliability and service efficiency of an autonomous energy supply system, as well as the possibility of independent operation of a gas engine and a boiler station from each other.

Keywords: Boiler room, liquefied natural gas, military infrastructure facility, autonomous energy supply

Improvement of energy efficiency of buildings by minimizing heat loss inside the premises and optimizing energy consumption is an urgent problem. The solution of the problem requires consideration of the impact of climatic factors on buildings - firstly, it is necessary to ensure safe thermal insulation of external walls, and secondly, to use effective thermal insulation materials. Being essentially volumetric geometric figures of various shapes, buildings react differently to climatic factors, as their heat resistance directly depends on the shapes and volumes. The article analyzes the dependence of the heat resistance of urban buildings on their geometric shapes and volumes. Using the example of the Evolution Tower of the Moscow International Business Center Moscow-City, the heat loss of rooms located on floors with different heights was calculated and changes in the main climatic factors in terms of the height of the object were revealed.

Keywords: buildings, heat loss, energy consumption, heat resistance, energy efficiency, enclosing structures, urban environment, thermal insulation, design, natural and climatic factors

A review of odorizing substances in natural waters is carried out. The stages at which odorizing substances can be introduced into water are considered. The characteristic of odorizing substances introduced at each stage of water treatment is given. The sources of drinking water odorants are systematized in relation to the stages of water treatment and by type of origin. Methods for determining odorants in raw water are reviewed. The threshold sensations, the type of smell and the chemical formula of some odorizing substances are given.

Keywords: natural water treatment, water deodorization, odorants, water treatment, carbohydrate water, surface water sources

In order to speed up consolidation, vertical drainage has proven to be a good option for the construction of modified bases . A set of experimental field studies was conducted to study the influence of self-forming vertical sand drains on the process of consolidation of water -saturated soil. Experimental equipment for the construction of vertical sand drains for work in Western Siberia has been developed.

Keywords: water- saturated soil, peat, consolidation, deep vibration, drainage agent, sand drains, modified base

The article considers the main stages of industrial architecture and construction’ development in the word during the last centuries.The principal architectural and structural desicions of industrial buildings are being analyzed, which were changed with time as well as different approaches to internal climatic environment of these buildings.It is noted that one of the most important regimes of the internal environment is a lighting regime which may be provided by natural or artificial methods.The natural method means prevision of natural illimination in premises and this requires the structural desicions to install windows and skylights in the workshops in question .This point is also considered in the article.The results of the analysis are being summarized in form of sertain conclusions and recomendations.

Keywords: Industrial buldings; arhitectural and structural desvions; indoor lighting envircnment; systems of side and top natural lighting; efficiency of windows, monitors and skylights

The article provides a study and calculation of the dependence of the hazardous area resulting from the operation of the flare equipment on the height of the flare at which service equipment and personnel can operate

Keywords: flare unit, radiation intensity, safe operation zone, thermal voltage

The article is devoted to the issue of improving the environmental safety of highly urbanized territories. The article presents the results of field measurements of pollutants into the atmosphere from gas stations within the urbanized territories of cities of the Russian Federation. The largest part of the allocation of oil product vapors entering the local aspiration systems is associated with the operations of filling and emptying fuel storage tanks at gas stations. The results of field measurements of the values of hydrocarbon concentrations obtained on the basis of the values of maximum permissible concentrations of ingredients are presented. The conclusion is drawn on the feasibility of environmental protection measures to reduce emissions when finding housing in the border area of the sanitary protection zone (SPZ) of gas stations. To reduce emissions from gas station sources, it was proposed to equip the gas aspiration system of the gas feeling tank with an improved design of the absorption device. In order to reduce waste generation as a working agent in such devices, it was proposed to use wastewater with a certain amount of oil products from a local gas station treatment device. This approach also allows to reduce the negative anthropogenic impact of gas stations in terms of the formation of additional amounts of waste generated during their operation. Successful tests have shown reliable and efficient operation of the pilot plant with the proposed apparatus.

Keywords: gas station, gasoline, emission, atmosphere, concentration, hydrocarbons, aspiration, reservoir, pollution, oil product, pollution, water

The article deals with the problem of improving the structural safety of cable-stayed structures . The mechanisms for regulating the risk of accidents of an object at the stages of its construction and operation are presented. The procedure for certifying the requirements of the standard is described. The stages of protection of cable-stayed structures from corrosion are given and the optimal position for increasing the corrosion resistance of ropes and fasteners is presented. Recommendations are given on the possibilities of increasing the operational durability.

Keywords: structural safety, cable- stayed structures , corrosion, rope, anchors, operation, accident, risk, durability

he article presents the results of evaluating the ability of activated sludge, saturated with anammox bacteria, to adapt to mesophilic and lower temperature operating conditions. As the main temperature regimes, temperatures of 30, 25, 15, and 13 ° C were selected. The system showed stable operation at temperatures up to 15 ° С with the highest degree of purification with respect to ammonium nitrogen - 0.33 mg / dm3. At the same time, the concentration of nitrites taking into account forced nitritation reached 0.07 mg / dm3. An additional increase in the efficiency of the system requires structural changes in the adopted technological scheme of the bioreactor, however, the introduction of an internal recirculation system of attached biomass (with load) inside the anammox department is considered as an essential element of the system that ensures stability

Keywords: nitrification, denitrification, activated sludge, aeration tank, anammox, biological treatment, domestic wastewater, low-oxygen treatment method, energy saving, resource saving, ecology

The use of industrial waste for the production and production of slag-lime-gypsum (SHIG) binder is considered. A binder based on blast furnace slag of the Novolipetsk Metallurgical Combine (NLMK), supplied to the KCR for the “Tsemzavod” of the republic, phosphogypsum dihydrate (FGD) of JSC “Nevinnomyssky Azot”, lime and sand quarries of the KCR for use in the local region has been developed. A comparative analysis of the compositions of the initial mixtures to obtain the SHIG of the binder, the mechanochemical activation of the mixtures in a drum mill, and the study of the physicomechanical and construction-technical properties of the binder were performed. The normal density, the setting time, the uniformity of the volume change, the tensile strength of the SHIG binder are determined. Using research methods, it was found that the resulting slag - lime - gypsum binder can replace cement in the technology of stone and plastering, with screeds and preparations for floors, as well as in the manufacture of small-sized wall blocks for the construction of cottage-type buildings.

Keywords: natural gypsum - dihydrate; phosphogypsum - dihydrate (FGD); granulated blast furnace slag; lime - fluff; slag - lime - gypsum binder; average density; fineness of grinding; normal density; uniformity of volume change; strength

The issues of organization of works with the use of expanding concrete, which are reinforced with carbon fiber, are raised. An example of the use of modern technologies in construction is considered. It describes the solution of some specific problems that arise when maintaining the quality of construction of complex buildings, attention is paid to the peculiarities of improving the quality of work performed.

Keywords: organization of construction; quality of construction and installation works

The issue of renovation and prospects for the integrated development of the territory of the old airport in the city of Rostov-on-Don, the possibility of locating objects with various functional purposes, determining the direction of the new use of the territory are considered. Prerequisites are being formed for the creation of a large new multifunctional Eastern planning district of the city with the formation of a social, business, commercial, residential, recreational, and innovative zones for the full activity of the population. Environmental observations and data analysis are carried out to forecast development prospects and improve the level of comfort for people living in this area. Ways of purifying the atmospheric air and measures to improve the state of the urban environment are considered. Summarizing of the development of effective use, expediency and profitability of renovation of the territories of the old airport of Rostov-on-Don.

Keywords: transformation, renovation, territory, development, project implementation, economic feasibility, environmental situation

The article considers the results of development of water treatment technology for household drinking water in Semey, presents a comparative analysis of widely used disinfectants, and considers technological schemes for water disinfection with chlorine dioxide and a combined disinfectant " chlorine dioxide and chlorine".

Keywords: household drinking water, disinfectants, chlorine

An impact on mechanochemical activation on morphology and structure of wood cellulose was examined. A comparative analysis of structure of sheet cellulose and fluffed cellulose was made using infrared spectroscopy and scanning microscopy. It was given that the cellulose I tranformed into a modification of cellulose II with more reacting power as a result of pulping. It ascertained that mechanochemical activation of the cellulose can increase the physical and chemical indicators of technical carboxymethylcellulose.

Keywords: cellulose, mechanochemical activation, carboxymethylcellulose

The article addresses issues related to the definition of particulate matter characteristics in the air of roadside areas. Fine suspended solid particles (TPM) of different size -10 and 2.5 μm are one of the main characteristics of atmospheric air quality. When monitoring the air environment on the maintenance of the firm weighed particles two indicators are used and normalized: PM2.5, PM10 are the firm weighed particles (English Particulate Matter, PM) with an aerodynamic diameter of 2.5 microns or less; Solid suspended particles with aerodynamic diameter of 10 microns or less. Dust particles from traffic are seen as an increasingly important source of air pollution, as the vehicle fleet is increasing worldwide, hence exhaust gas emissions, as well as particles from tire abrasion and road surface wear. Studies were carried out on the dust content of the roadside territories of the city of Volgograd. The article also pays attention to air quality indices, which will be used in monitoring the air environment of urban areas.

Keywords: motor transport, dust, road dust, the firm weighed particles, PM2.5, PM10, the atmosphere, the air environment, ecology, ecology of the urbanized territories, environmental safety

The paper considers the results of research on the use of various types of approximations of concrete deformation diagrams on the example of calculating a large-span reinforced concrete truss with a length of 18 m. calculations were performed taking into account the physical nonlinearity of concrete and reinforcement. The following concrete deformation diagrams were used : bilinear, trilinear , and curved with a descending branch. The result of the calculation was the forces in the truss rods, the displacement and the width of the crack opening. Conclusions were made about the influence of the choice of the concrete deformation diagram on the calculation results.

Keywords: concrete, deformation diagram, approximation, physical nonlinearity, stress-strain state, longitudinal force, bending moment, displacement, crack resistance , truss

The paper describes a method for a measuring amplitude-frequency characteristics using a random broadband signal as a test signal. The results of an experimental verification of the proposed method are given, as the hardware implementation of the meter.

Keywords: measuring instrument amplitude-frequency characteristics, identification, Wiener-Hopf equation, discrete fourier transform

Microelectromechnical system MEMS gyroscopes and accelerometers are using to measure the angular velocity of rotation and linear acceleration of an object, respectively. In many applications, the measurement of the angle is required, but gyroscopes have a mixing error that occurs when integrating the angular output velocity and the accelerometers have an error due to the translation force. This article presents a method for designing a complementary filter for estimating an angle using accelerometer and gyroscope and discusses the behavior of complementary filter in Matlab. As a results, the development of complementary filter system used to estimate the angle, can be used to consistenty and accurately improve the determination of the angle.

Keywords: accelerometer, gyroscope, complementary filter, MEMS microelectromechanical system

The article is devoted to solving the problems of remote monitoring of the patient's condition using a resuscitation monitor. Tracked patient status parameters are described. Ready-made solutions for remote monitoring of health conditions are analyzed. Software for visualization and analysis of information is proposed.

Keywords: remote monitoring, patient monitor, state of health, ambulance patient, health diagnostics, degree severity of health, condition assessment

Dosing of various substances and materials are widely used in the chemical, petrochemical, food, medical, pharmaceutical, agro-industrial complex and other branches of science and technology. Research and development of new intellectual property objects, including those aimed at increasing the share of labor automation in this area, are actively conducted in many countries of the world. This determines the need for accelerated development of domestic technologies and equipment competitive in the Russian and foreign markets for automated dosing and packaging of various substances and materials, including liquid, bulk, puree, viscous and others. Based on a systematic patent information search, a systematic analysis of technologies, machines and equipment for dosing in industry, agriculture and the social sphere has been performed. A knowledge base has been compiled and systematized in the field of technologies and equipment for dosing in industry, agriculture and the social sphere. The results can be used to develop new technical solutions for improving equipment and technologies used in various fields of science and technology

Keywords: knowledge base, industrial dosing, intellectual property objects, patent search, system analysis