For the water-saturated two-phase soil environment with the properties changing in time within a continuous isotropic body with linearly - hereditary creep executed mathematical modeling of influence of steam pressure upon soil. The new settlement model in which the steam pressure upon soil is considered as impact of the compelled deformations is developed. It is shown that the developed and known settlement models (in known model the steam pressure upon soil is considered as action of volume forces) will completely be coordinated with the general conditions of equivalence of influences established earlier in mechanics of a deformable solid body. Special cases of the soil environment are considered. 

A model of liquid sputtering in the electric field with a glance of environmental influence, physical qualifies of liquids and technological parameters is offered in the work. On the base of the offered model has been got a formula for counting the dimensions of liquids particles in the parameters of sputtering process, qualities of liquid and air. It is shown in the work that air influence on particles dimensions in the presence of electric potentials till 11 kw can be neglected. 

Developed computational model of the dynamics of the cutting process, taking into account the characteristics of the nonlinearity strength. The method of construction of the approximating curve. 

The possibility of providing a wide-range performance kvazidoplerovskogo automatic direction finder at failure of several vibrators antenna system through the use of phase relationships with serviceable. 

Considered design systems exhaust heat from the elements REA mode intermittent heat. Describes their applications and advantages over existing analogs of being more reliable performance and lower limits on the pause in the work of the electronic device. 

The questions are considered of the movement vessel in shallow with constant and variable depth. The equations of dynamics vessel are obtained, permitting to allow the impact on the dynamics of shallow vessel by substituting the coefficients of the equations of motion the vessel in deep water relations draft of the vessel to the depth of the waters. The mathematical model has been developed of the vessel on a given curse trajectory in shallow at variable depth. 

This paper presents a simplified method of calculating the optimal regimes of the fountain and the pumping exploitation of geothermal wells, reducing scaling and corrosion during operation. Comparative characteristics to quantify the heat of formation for these methods of operation under the same pressure at the wellhead. The problem is solved graphic-analytical method based on a balance of pressure in the well with the heat pump. 

The work relates to the field of CAD methods and means of nondestructive electromagnetic testing of conductive flat products. The problem of constructing mathematical model of the drive winding eddy current probe linearly extended form is polygon in cross section. This allows you to create a universal mathematical model, which includes a model of a simpler shape in cross-section, as a special case. 

In work cyclic methods of index sorting of data files, at the heart of which shift of elements for the purpose of receiving the configurations possessing certain properties are considered. 

The application of computer modeling gives additional incentives of development to the branches of science, helps to limit intuitive speculative modeling and expands the appendix of rational methods of information technologies. The review of methodology of computer modeling has been offered, the basic concepts of computer modeling have been given, the methodology of algorithms of stage-by-stage and step-by-step modeling has been also given. 

This article was first based on the use of complex mathematical models of dynamic programming analyzed the problem of optimizing the distribution of internal investment.

As a result of research by the author for the first time demonstrated the model to analyze the competitiveness and sustainability of the corporate group, This methodology is based on the ranking of participants in groups according to the degree of their investment attractiveness and priority.

Identified and the possibility of achieving the group's performance based on an iterative and incremental processes of the investment component of the members of the corporate structure, as noted performance criteria.

The author observed that as the criterion of economic efficiency can serve as a total guaranteed amount of income received by members of the corporate group within a certain period. The main advantage of the new mathematical model is that the practice of application of this mechanism demonstrates its reliability and availability. 

The features of modeling of reinforced concrete slabs of varying thickness in computer finite element method program PRINS are described. An example of the cantilever reinforced concrete slab, made in this program, is given. Two options section of the plate - fixed and variable, are considered. Calculation results are compared to stresses and strains. 

The compositions of fine-grained concrete with the application of volcanic ash are developed. Are investigated compositions and properties of fine-grained fiber concrete with the volcanic ash with the application of methods of the mathematical planning of experiment. It is revealed, that the reinforcement of finegrained concrete by basaltic fibers substantially increases their strength with the bend. 

Are developed the methods of preparation and hot working of fiber and foam concretes with the with application of sawing waste of the volcanic tuff. Are investigated compositions and properties of fiber and foam concretes. The methods of the preparation of the fiber and foam concretes mixture and the hot working of articles proposed make it possible to decrease water-solid relation and shrinkage strain with a simultaneous increase in the strength of fiber and foam concretes 

Questions of delimitation of state property on specially protected areas land of the Caspian lowland in Daghestan need further study. It is Requires the definition of the status of land of recreational zones of the coast of the Caspian sea, including coastal and border strips, legal and logical resolution of the millet for the management of these lands as Federal property. It is Necessary to accelerate the work on the delimitation of the remaining areas of land in this zone, to take inventory, to put these lands on cadastral registration and to sign lease agreements with businesses on these lands. 

The Republic of Crimea was a part of the Russian Federation as the certain federal district not so long ago and is the most important center of development of tourist and recreational activity and resort business. Historically this territory has the huge natural medical potential and well developed network of the sanatorium organizations specializing on treatment of various profiles of diseases. Modernization of health resort of the region is the main objective of further development of all district. Sanatorium activity is branch of economy for all territory and promotes active development of other types of economic activity. 

In this article are defined and classified the risks in the housing sector, both at national level and regional. The necessity of establishing an effective mechanism for risk - management utilities in modern conditions of market economy and the uncertainty of the reformation.