The analysis of the frequency-controlled drive currently used on the technological equipment of the Volgogradneftemash enterprise is presented. Taking into account the peculiarities of the pumping and ventilation equipment installed at the enterprise, the principles of regulation are determined and the influence of a frequency-controlled drive on the quality of electrical energy is evaluated. The negative influence of the frequency-controlled drive of ventilation and pumping equipment on individual indicators of electricity quality was noted. In order to reduce this influence, an energy-saving device has been proposed for installation. The issues of the possibility of using an energy-saving device at the facility are considered, as well as an analysis of its efficiency during operation from the point of view of improving the quality of electricity in the internal power supply system of the Volgogradneftemash open Joint stock company is carried out. The use of the device is an effective solution, since it leads to high energy efficiency of technological equipment by reducing current surge, suppression of higher harmonics and electromechanical interference.

Keywords: electric drive, ventilation system, frequency-controlled drive, quality of electrical energy, energy saving device

The influence of road transport on the formation of noise along highways is considered. The proposed options for protecting against noise from the roads.

Keywords: linear city, noise, vehicles, main roads, road categories, noise control

The authors propose to choose the system of air purification from grain dust, which has the maximum ecological efficiency and energy efficiency, based on the study of the properties of this pollutant. Investigation of the grain dust parameters of the properties of the dispersed phase and dispersion medium, as well as energy parameters will affect the stability of the aerosol, i.e. its ability to resist external influences. Changing the stability of the grain dust aerosol and, ultimately, its destruction due to the separation of the dispersed phase and the dispersion medium, is the purpose of the development of air purification system.

Keywords: grain dust, dispersed system, parameters of pollutant properties, energy parameters, stability of the pollutant

Researches based on results of the questioning among the students of Grozny (GGNI), conducted in 2011 - 2012. Over the entire study period, 525 people were interviewed. The questionnaire consisted of questions focused at identifying the subjective opinions on own relation of respondents to a political order, and also questions opening level of a group relative deprivation. The received results of a cognitive component were processed by a method of the statistical analysis in software package SPSS. It is revealed, increase the level of relative deprivation among a group of students, which may indicate an increase in the level of political tension. Detected, reducing the level of emotional involvement in the political life of the Republic, which is exacerbated by increased levels of alienation from the political process. In the identification of situations among student of Grozny need to direct efforts local government at ending the fall of the level of emotional involvement, as well as to control the level of relative deprivation with fixing it to reach the middle level.

Keywords: a political tension, deprivation, group installation in relation to a political order, cognitive component, questionnaire, the descriptive statistics

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