Results of development of new high-performance technology of hardening and balancing of abrasive circles due to drawing detonation ceramic coverings are presented. The method of calculation of rational thickness of the ceramic covering creating in volume of a circle favorable residual squeezing tension is given. The way of balancing of abrasive circles at the expense of the uneven thickness of the covering put on their lateral surfaces is shown. Results of researches of influence of the sizes of abrasive circles at a size of residual tension are presented.

Keywords: Abrasive circle, hardening of an abrasive circle, detonation covering, balancing, internal tension

he urgency of determining the reliability as the main criterion for the reliability of ventilation systems. The approaches to the determination of the reliability of the ventilation system, the criteria for estimating the parameters of their work, the model of the process of prognosis and improve the reliability of the ventilation systems. Therefore, to quantify the reliability of ventilation systems proposed an approach based on the analysis and evaluation of the physical premises of failures.

Keywords: Reliability, mechanical, exhaust, ventilation, technical, system reliability

The article presents the new technologies and design tools for опиливания of machine parts. A number of new technical solutions in the field of innovative Metalworking tool for опиливания parts of machines, with a complex of technical and economic advantages over existing analogues. Shows the five variants of constructions and technologies for the production of files and надфилей, based on the use of hard coating. New tools are characterized by a low-cost, low labour-intensiveness of manufacturing and high performance.

Keywords: tribology, the filing of a painful, spraying, carbide coatings, wear, self-sharpening, reversible cutting plates

"The paper presents the solids control dust. Powered device for solids control dust and gas flow. The advantage of this device is that the air flow is not introduced sensor, distorts the parameters of the air flow. The necessary circuit device, and the necessary formulas for the calculation. "

Keywords: Air flow, dust-gas flow, solids, piezoelectric transducer, vibration, tailing.

  The results of the analysis of existing approaches to the determination of the efficiency of trapping pollutants at their sources of isolation, as well as the prediction of residual contamination of the air of working areas. The classification of methods for determining the effectiveness of local suction ventilation systems. Given the technological distinction between the concepts (factor "technology capture") and sanitary (factor "technological breakthrough"), the efficiency of local suction. The tasks of improving the mathematical description of both types of efficiencies.

Keywords: pollutant, a local suction, efficiency, carbon capture, source separation, capture, simulation

The theoretical significance of the study is an attempt to decision actual theoretical and practical problems of the various forms of charitable activity: charity, sponsorship, philanthropy, fundraising in the education market, based on the effective inter-sectoral interaction of economic agents in Russia. Proposed comparative analysis of socio-oriented forms of university charity will improve relationships with all investors, educational innovation and will contribute to the innovation infrastructure of the university in the public interest.

Keywords: The market of educational services, philanthropy, sponsorship, patronage, philanthropy, fundraising, social investment, attributive characteristics, the effectiveness of funding.

Information about authors of issue №4 (2011)

Keywords: authors