The article analyzes the state of urban air. It proved the impact of cement industry on air quality. The article also analyzed the technological process of cement production. As a result, built carrying circuit material flows. Carrying circuit material flows determined that dust is highly polluting air environment, because the dust is released at each stage of production. Analysis of the cement production process has allowed to identify the main objects that are involved in the process of air pollution, as well as to establish their relationship. The result is a physical model of the process of air pollution. Further, on the basis of a physical model of the process of pollution, it is possible to construct a physical model of the process of reduction of air pollution.

Keywords: the air of the city environment, the process of cement production, carrying circuit material flows, physical model, process air pollution, cement dust

The article reviews questions about description disperse composition and concentration of dust using the theory of stationary random functions. This approach allows us not only to obtain the characteristics of disperse composition of dust in the air, but also determine the number of additional parameters, namely, the average residence time fractional concentration above a predetermined level, the average number of outputs fractional concentration per unit time for a fixed level. Examples of correlation functions that can be used to approximate empirical data in the case of stationary процесс are submitted.

Keywords: air medium cities, disperse composition of dust, stochastic process, random function, the fractional composition of the dust, the integral concentration, correlation function, stationary process, normal distribution formula Rice, the function passes

In this paper, discussAn algorithm for control equipment in heating, ventilation and air conditioning system as part of intelligent building control based on indicators of climate comfort and energy conservation. We derive solutions corresponding to a particular situation.

Keywords: sensors, heating, ventilation and air conditioning, intelligent control, decision making, control algorithm

The article presents ecological heat and power recuperator for air heating. Due to the development of jet turbulent flow of the heating air, this device achieves positive heat exchange effect. It also allows reducing the noxious elements in combustion gases, exhausting into atmosphere.

Keywords: energy saving, ecology, heat-exchange, perforated surface, temperature, heat-exchange intensification

The article reviews the three methods of assessment of vehicle exhaust gases in the countries of the European Union. In the first method fuel as an indicator of the transportation activity is used in combination with the average emission coefficient. The second method accounts for the fuel consumption of different types of vehicles and their emission standards. The third method allows for calculating exhaust gas emissions in combination with technical data and data on transport activity. The article presents equations to calculate the exhaust gas omission for each method and reviews examples of the particulate matter characteristics of the emissions of passenger and freight transport. The article also proposes the use of a log-normal law for dependence of transition of number of particles to integral functions on mass distribution of particles by diameter.

Keywords: exhaust emissions, particulate matter, concentration of pollutants, pollution concentration, pollutant index, transportation categories, vehicle categories, pollution standard

In article results of pilot studies according to influence of dust emissions in the atmosphere from sources of asphalt concrete plants on concentration and fractional composition of dust are given in atmospheric air. The obtained data testify to insufficient efficiency of actions for decrease in the pylevydeleniye in environment applied now at the considered enterprises. The assessment of necessary fractional efficiency of a pyleulavlivaniye in the conditions of the operating production is carried out.

Keywords: dust, dust emissions, organized source of emissions, concentration, fractional structure, fine particles, fractional efficiency

In article authors considered the main processes having impact on distribution in atmospheric air of the polluting substances which are formed during the work of the enterprises of fuel and energy complex – boiler rooms and combined heat and power plant. Various changes to which are exposed gaseous and the strong polluting substances coming to the atmosphere with flue gases, and also the factors influencing dispersion and their concentration in the air basin of the cities are analysed. The climatic characteristics significantly influencing formation of pollution of the air basin of the cities are investigated. In the conclusion authors drew a conclusion that, despite an arrangement of installations of the centralized boiler rooms within an urban area or is close to it, decrease in pollution of the air basin of the cities in comparison with systems of autonomous heating of each house is observed.

Keywords: the polluting substances, the enterprises of fuel and energy complex, dispersion of the polluting substances, air pollution of the cities

The analysis of the technological processes of building materials and wood products as a source of the harmful emissions into the air of the working area. The results of field studies to assess the ambient air dust in the workplace areas of mechanical wood processing. Recommendations on the use of optimal solutions to reduce particulate air pollution in the working area of woodworking industry.

Keywords: wood dust, general exchange ventilation, aspiration, individual dedusting unit, maximum allowable concentration

Hemodialysis is a complex process requiring the increased control of some parameters, such as dialysis dose, blood perfusion rate, ultrafiltration, blood volume, its composition and etc. To solve the problem of control the blood during dialysis was designed the monitoring system of air inclusions - air bubbles. A very important part of this system is the ultrasonic air detector. It is set to venous blood highway - at the exit of blood from the dialyzer, and determines the presence in the cleaned blood any air inclusions by measuring the velocity of ultrasound in the analyzed multiphase medium - the blood, thus informing the doctor about the quality and security of hemodialysis procedure.

Keywords: Air embolism, bubble trap, air detector, speed of ultrasonic vibrations, the pulse-frequency method of measurement the ultrasonic speed.

A series of samples of nanocrystalline zinc oxide films was fabricated by reactive magnetron sputtering under different regimes, heating up to 200-250 ° C and subsequent annealing. The effect of relative humidity in the range of 25-80% on the resistance of zinc oxide films was investigated. The character of the dependence of fabrication regimes on film resistance at different relative humidities was detected. The optimum conditions of insensitive to relative humidity zinc oxide films formation was obtained.

Keywords: nanocrystalline films, zinc oxide, magnetron sputtering, electrical resistance, relative humidity

In the article the questions of technical and economical justification of the physical and mechanical compressed aitr drying are looked over. The detailed calculation  for price index and economic profit for wagon exploitation depot are given.

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

The aim of this work was to conduct monitoring and make a regression model of the microbiological air pollution in Volgograd near highways. The work carried out monitoring of microbial air pollution in the residential district of Volgograd near two major highways - first and second longitudinal lines. On the first phase of research the microbial monitoring of air pollution in the residential district of Volgograd was conducted, depending on the proximity to the highway. Number of microbial cells (MC) was evaluated by sedimentation. The assumption is made about the nature of the regression relationship between microbial air pollution and the distance from the highway. Approximating functions and regression coefficients are constructed for the first portion of the longitudinal line at different levels of traffic road. Function is obtained, which allows to calculate the value of microbial contamination of the air, depending on the distance to the road and number of vehicles. In the case of high levels of the microbiological monitoring of the basin air it’s necessary to carry out measures to reduce microbial contamination of the air, for example, regular watering roads, tree planting, vegetative barriers adsorbing pollutants, chemical treatment of disinfectants. The calculation of microbial contamination of the air near a residential building located at a distance of 10 meters from the highway in the central region of Volgograd is conducted using proposed in function prediction of microbial contamination. The developed technique allows us to make calculations without setting up experiments in a specialized microbiology laboratory.

Keywords: monitoring , microbial contamination of air , the regression model , mathematical modeling

Metodological apporoaches are considered the choise of instrumentation at a complete enviromental wagons labs. Metodology for the optimal choice of instrumets is proposed to achiv the fundamental unifying analytical chemistry and experience eco-analytical laboratories complements existing theoretical approaches

Keywords: information technology, enviromental wagon labs, systematic approach, ecoanalitical tasks, enviromental control, the metodologi of optimal choise of instrumentation

Block diagram of the active harmonic filter is considered.  State table inverter power switches active harmonic filter is considered. Calculated the capacitance on the DC link active harmonic filters. The calculation takes into account the power converter losses in the active harmonic filter.

Keywords: active harmonic filter, distortion power, energy storage capacitor

Presents materials of the reports presented at the section "Technologies of modeling socio-cultural interactions in multi-ethnic regions" international scientific conference of young scientists "Actual problems of modeling, designing and forecasting of social and political processes in multicultural space of modern society". The organizer of the specified partition conference was organized by the North-Caucasian scientific center of higher school and the Department of modeling of social processes of the southern Federal University. The materials reflect the results of research of young scientists, postgraduates and undergraduates, obtained with the use of various aspects of model-based approach.

Keywords: Technology, modeling, social modeling, socio-cultural interaction,multi-ethnic region