The effectiveness of air purification with the following sorbents has been studied: crushed expanded clay with granule sizes up to 2-3 mm, zeolite with granule sizes up to 1-3 mm, activated carbon with granules up to 3 mm, the natural mineral pyrolusite as a catalyst, Portland cement prepared using various methods: with the addition of a 6% solution of table salt, with soaking of granules in 26%, 31% and 36% solutions of diethanolamine. Studies have shown that the most effective (98%) use of pyrolusite granules, Portland cement granules obtained after mixing Portland cement with a 6% sodium chloride solution, soaked in 31% diethanolamine and then drying the granules at a temperature of 125 0C.

Keywords: crushed expanded clay, portland cement, purification, supply air, sulfur dioxide, carbon monoxide, formaldehyde, granules

One of the main sources of electromagnetic radiation in the environment are power lines, not taking into account this fact, there are increasingly cases of construction of buildings in close proximity to the boundaries of the security zones of air lines. The purpose of this study is to improve the electromagnetic safety of the population, as a result of the use in the construction of residential facilities located near overhead power lines, structural and finishing materials with the greatest shielding ability. On the example of "corrugated Board" of different brands, used as a shielding material, the indicators reflecting the efficiency of electromagnetic shielding are obtained. Also, according to the results of the study, it was found that not only the raw material from which the material is made plays a role in the shielding of the electric field, but also its form factor.

Keywords: electromagnetic radiation, electric field, security zone, shielding ability, voltage class, power line, material

An implementation of the interactive technology for conducting laboratory classes on discipline "Technology of construction materials" in the form of a business game. A scenario is developed in laboratory classes with the elements of a business game. This interactive technology is being successfully implemented at the Department of "mechanical Engineering and applied mechanics" VITI NRNU MEPhI in the representation of the discipline "Technology of construction materials" and its sections.

Keywords: business game, an interactive form, technology of structural materials, protective coating

The basic laws of seals and homogenization of powder steel by electrocontact compaction (ECC). Defined process conditions electrocontact compaction (ECC): current density of 36 MA / m², compaction pressure of 380 MPa, the duration of the process 70s that achieve high-density state of the material.

Keywords: electrocontact compaction,zhelezografitovye composition, compactibility, homogenization, porosity, powdered steel, diffusion microstructure splicing current density

A comprehensive study of metallographic structure and properties of coatings made ​​by the method of gas-powder surfacing. Phase analysis was carried out to determine the structural components of the internal condition of the coating. Conducted an analysis of the diffraction patterns and microstructures.

Keywords: gaspowder welding, powder steel, microstructure, and protective coatings

Acoustic system parameters were selected and calculated: wave modes used when controlling, wave entry and frequency angles according to kind of decay process and ultrasonic attenuation. Control procedure was developed

Keywords: ultrozvuk, frequency, attenuation process, technology, acoustic system

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

Information about authors of issue (№1 2014)

Keywords: authors

A long term study of compensation converters allowed to solve the task of designing the structure, the calculation of its elements, the determination of static characteristics and energy performance. Thus remain undeveloped algorithms of their work to ensure a successful use of compensatory converters and independent control of active and reactive power consumption. An algorithm of their work to ensure the optimal use of compensatory converters. This article contains material from GC № 16.526.12.6016 11.10.2011.

Keywords: Site load electric network compensation converters; management algorithms ; controlled electric drive with compensation rectifier in section of the direct current of the converter of the frequency

An optimal control algorithm for compensating converters. This algorithm provides control of active and reactive components of power consumption. The algorithm allows to reach a balance  between the values ​​of the angles  controls αi and αe . In the algorithm used is a method for solving equations by iteration. In article materials of the state contract № 16.526.12.6016 on 11.10.2011.

Keywords: compensation converter, frequency converter, control algorithm, objective function, iterative method

The paper deals with review of main methods of compound details irregular optimal packing on sheet material problem solving. Existing methods and approaches to solve compound details irregular optimal packing on sheet material problem were descibed. The classification of such methods and approaches was proposed. The most perspective approaches to solve irregular packing problem were identified

Keywords: cutting-packing, irregular shaped cutting, classification, methods, approaches, complex form

A number of tests in cutting setup alloy 10H12NVMFA fulfilled. A number of studies for specification of process gas (oxygen) impact on cutting speed, also of cutting speed impact on cutting width were performed. Optimal cutting parameters specified experimentally.

Keywords: laser cutting, cutting speed, cut sidewall, oxygen pressure, capacity

Research areas of the department cover the working out of energy saving measures and research investigations allowing to introduce into production:
rational algorithm of automatic temperature control system which allows to cut down expenses on fuel and energy resources consumption;
-energy saving and more reliable drive system of oil circuit breakers with a cylindrical linear motor;
-innovative lighting systems;
-discharge monitoring in aqueous medium;
-rapid early disease detection in animals via photoplethysmography and pulse curves analysis;
-automatic control system in frame area;
-methane fermentation of wastes, etc.
All these directions for research allow to increase competitive advantages of agribusiness enterprises of the Udmurt republic

Keywords: LED-light - emitting diodes; linear cylindrical induction motor; biogas units; automatic control systems algorithm; photoplethysmography; automatic temperature control system

Information about authors of issue №2 (2013)

Keywords: authors

Development and improvement of local markets zernoprodovolstvennyh mining areas, as well as regional transaction sector agro-industrial complex of the Eastern Donbass centers contribute to the formation of institutional modernization of the regional economy. To identify the political, economic, social and technological factors in the external macro-environment that may significantly affect the business, structuring and formulation of the organization's strategy is an important analysis of institutional and market coordinates held in accessible form PEST-analysis.
Keywords: region, local market, the institutional environment, PEST-analysis, macro environment, trade, protectionism, state support.

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