The use of anti-friction materials in moving units reduces the likelihood of component wear, increases reliability, service life of parts and mechanisms as a whole. The paper considered the effectiveness of molybdenum coating in the design of oil and gas fittings, namely, an axisymmetric check valve and a control valve. Tests for strength, thickness, microhardness of the coating in the rack and pinion mechanism of oil and gas fittings were carried out.

Keywords: molybdenum, plain bearing, rack and pinion mechanism for oil and gas fittings, coating parameters, tests

Is the result of long-term observations over the condition of water objects of the city of Rostov-on-Don. Status of water resources in the city of Rostov-on-Don, did not meet the requirements of the normative acts in the field of environmental protection Wednesday. The ability of the river Temernik River self-clean does not provide restore disturbed ecological balance and require the implementation of additional measures aimed at improving the condition of the water body. By changing the parameters of the river Temernik River and used for purifying algae observed decrease of contaminants into the River Don. Considered the objective of improving water hydraulics, hydraulic structures to ensure proper ecological state of these objects. Sources of water pollution are also unorganized flow of surface water from contaminated areas within the city, that degrades the performance of ecological purity of the hydrosphere region, its water balance. Hydrological and hydraulic processes in the urbanized territories are closely linked to environmental security. Address the issues of environmental security of waters of megalopolis based on monitoring the quality of natural waters in natural waters, developing recommendations and spending on their basis for the conservation and improvement of the status of water resources of the city, ensuring their safe use for the needs of the city's population.

Keywords: Keywords: water, water object conditions, hydraulic structure, water quality, natural water, River, spring, ecological situation, sources of pollution, chemical composition, monitoring, contaminants, sampling, hydrochemical study

The question of economy of metal at production of building designs is considered. Measures for the organization of effective production in the current projects of high-rise and long-span buildings are proposed. Measures of increase of efficiency of construction are considered

Keywords: organization of construction; economy of construction, production of building materials

The question of economy of metal at production of building designs is considered. Measures for the organization of effective production in the current projects of high-rise and long-span buildings are proposed. Measures of increase of efficiency of construction are considered.

Keywords: organization of construction; economy of construction, production of building materials

The problem of the organisation of civil work during the winter period is studied. Authors inform results of real experience of the organisation of winter concreting in extreme conditions for the Rostov region. Practical recommendations about the organisation of works are made

Keywords: organization of construction; high-rise housing; reinforced concrete and steel structures

Discusses the current problems of the organization of the personnel policy of the organization. Focused on personnel management, motivation of employees, efficiency of interaction at all levels. Suggests approaches to the evaluation of personnel capacity and efficiency of the company personnel policy

Keywords: organization of construction; personnel management, personnel management

The article considers methods of investment management and construction organization under conditions of uncertainty and crisis. We study the conditions for joining the organization in crisis, management under the crisis conditions of uncertainty, affecting the development of crisis phases and management of stable and critical state

Keywords: the economics of the industry, organization and management in construction, management

We consider the essence of the actual problems of the use of different types of UAVs in the national economy. The forecast of economic efficiency, based on the analysis of foreign experience. Problematic aspects stand out, is conducted analysis, are possible solutions.

Keywords: economy sector, organization and management in construction, innovation, malomotornaya aviation, unmanned aerial vehicles

We give a historical overview of the problem of choosing the optimal organizational and technological solutions in terms of fighting the Great Patriotic War. Singles out the main issues analyzed their solutions, defined relationship with the historical experience of the present stage of development of the industry

Keywords: story building, the organization and management of bridge construction, management, construction, military history.

The process of electronic on-Board documentation composition is discussed. Mathematic description of the process of electronic on-Board documentation composition is introduced. Main tasks of electronic on-Board documentation composition is formed. The way of solution of these tasks is suggested. The objective of the research project is formed and relevancy of this research is noted.

Keywords: electronic on-Board documentation, tasks of electronic on-Board instructions composition, virtual simulators, operation plan, information field of documents, ontologies, mathematical models

The main mission of a cargo spacecraft is a cargo delivery on the ISS. The cargo positioning on the spacecraft board is realized on the Earth according to certain rules. The main limitations of the cargo positioning is the weight limitation, the volume limitation, the mass center limitation and the unloading sequence on the ISS. If the mass center deviation will be greater than a some default value, the replacement of cargo must be performed. It maybe more than one cargo replacement realized that leads to increase of complexity and duration of the spacecraft prepare procedure. So, the problem of aprioristic finding the cargo optimal placement on a cargo spacecraft board arises. The solution of this problem will make it possible to give some advice on the optimal cargo placement to the staff performing the spacecraft prepare procedure.

Keywords: cargo spacecraft, cargo placement, weight, volume, mass center, unloading sequence, optimal placement

In article fundamental criteria of rationality and efficiency are considered. The analysis of a condition of nature economic activity of the Voronezh area  by three main criteria is carried out. These criteria are opened and analysed, their system decisions are proved.

Keywords: criteria of efficiency and rationality, system of complex interaction, economic, social and ecological criteria, complex communication.

Now development of the administrative principles is directed on selection of the corresponding forms of total activity of employees of the investment and construction sphere. The methodology of a point of profitability shows, how many production the organization has to realize to refund the expenses. We offer model of management of integration in construction, using the mathematico-statistical analysis and considering calculation of a point of profitability. Here factors – receptor, administrative and effector take place. In experience information of the construction enterprises of Rostov-on-Don was used. The profit after introduction of innovations grows quicker, than before their introduction since the point of profitability decreases after calculation of the organization for invested in innovations. On examples the criterion of expediency of merge of the construction organizations – the carried-out amount of works is shown. On the basis of this criterion it is possible to solve a problem of streamlining of operations in construction systems by integration of information space of organizational and technological, economic and other applied systems.

Keywords: аssessment, effective, land tenure, methods, expert, factors, hierarchy

The article discusses the factors and principles for regulating the real estate market taking into account the interaction between the cost of land and housing projects, and also makes suggestions for a balanced model of regulation of the market.

Keywords: real estate, land, housing, the cost of the regulation.

A widespread technology with deep litter floor with broilers. Promising material for bedding are the straw materials. However, straw, held a simple reduction, does not meet the zootechnical requirements, in particular the recommended length of the cut should be 50 mm to 150 mm. Thus, there arises the problem of fractionation straw, obtained at harvest crops as waste. We carried out an analysis of the different types of fractional chopped straw with nodal connections without them. Studies have been conducted on the behavior of these types in an air classifier with a velocity change .

Keywords: The straw residues fractionation aerodinomicheskie performance, fly speed