PHYSICAL-MATHEMATICAL SCIENCE
The necessity of studying the effect impact of elementary particles impact on the strength and deformation materials properties used in protective constructions nuclear reactors and reactor technology has been stipulated. A nuclear reactor pressure vessel from prestressed concrete, combining the functions of biological protection is to be considered. The neutron flux problem distribution in the pressure vessel of a nuclear reactor has been solved. The solution is made in axisymmetric with the finite element method using a flat triangular finite element. Computing has been conducted in Matlab package. The comparison with the results has been obtained using the finite difference method, as well as the graphs of changes under the influence of radiation exposure and the elastic modulus of concrete radiation deformations have been constructed. The proposed method allows to simulate changes in the deformation properties of concrete under the influence of neutron irradiation. Results of the study can be used in the calculation of stress-strain state of structures, taking into account indirect heterogeneity caused by the physical fields influence.

TECHNICAL SCIENCE. POWER, METALLURGICAL AND CHEMICAL MECHANICAL ENGINEERING
COMPUTER SCIENCE, COMPUTER ENGINEERING AND MANAGEMENT
Methodological aspects of the theory of precision Assembly operations in the manufacture of engineering products. Substantiated the advantage of probabilistic modeling in engineering. Noted that the primary error of engineering products change over time because of wear and tear, as a result of what is happening in the material details of the physical-mechanical processes, and experimental study of the marked character of changes in parameters of the parts does not give the exhaustive information on which to judge those or other reliable regularities of the phenomena. It is noted that the experimental study is very important, as allows to receive multiple implementations, which can be seen on the character of changes of primary errors in particular cases. The features of the use of probabilistic modeling in solving problems of the nonlinear theory of accuracy.

BUILDING AND ARCHITECTURE
The article is dedicated to the peculiarities of the internal space composition in architecture of Central Asia. There are some main distinguishing features of artistic and aesthetic functions of this direction considered. The purpose of the article is to find forms of ancient cultures interpretation in modern interiors, given the growing tendency of the traditional style use in architecture and design. There are some examples of tourism service facilities in the historic centers of the region with elements of national architecture given. Currently there is an increasing tendency of applying the traditional style in architecture and design using modern building materials. This makes the objects attractive for people interested in different cultures. Entire cities are becoming a modern interpretation of ancient cultures. In the case of designing tourist complexes near the monuments of culture, the direct study of their space-planning structure makes possible to identify the characteristics of the objects architecture, which will recreate the atmosphere of the cultural epoch of that time in a modern style.

We consider the problems associated with the development of high-efficient binders. It was found that the mortars and concretes important indicator is the ratio of binding properties of cements with a so-called ”specific consumption of aggregates. ” It was found that the activity of Portland cement in the past decade has increased slightly and is 50-55 MPa; physical and technical characteristics of high-quality graded fine and coarse aggregates remained unchanged. It substantiates the relevance of the development of new types of cements for high-strength and high-quality concrete with active mineral additives and an effective superplasticizers. It is proved that the use of the obtained cements of low water through the use of active mineral additives of different origin, allows to obtain high-quality concrete with strength class from B60 to B100, reduce the need for water-mortar and concrete mixtures of 25-30% for equal mobility.

The article touches upon the theoretical and experimental studies of the influence of the various components of road conditions to reduce the stability of the vehicle, which lead to skidding and rollover. The resulting research material will improve traffic safety on the roads of the Republic of Dagestan. We give formulas for calculating the critical speed cornering with cross gradients and sharp change in direction, in which the skid and rollover is not excluded, due to the appearance of additional transverse forces of inertia. It is explained that a significant impact on the stability of the car has a «side pull». We give graphs of the lateral force from the vehicle slip angle of tires and tire tread wear of the impact on the quality of grip at different speeds and the amount of coating roughness obtained experimentally. Effect on the skid and rollover car road surface irregularities is marked. In such traffic conditions, the technical condition of the vehicle and in particular the shock absorbers are essential. The schedule damper effect on driving conditions, obtained experimentally.

ECONOMIC SCIENCE
ISSN 2542-095X (Online)