Using simulation and finite element method calculations of stress-strain state of monolithic concrete support for underground structures with non-circular outlines made of fast-hardening concrete are carried out in the paper. Based on the obtained results, the maximum stress zones and their magnitude in the reinforced concrete support are established. The stresses are compared with circular-form supports. The factors influencing the stress state of the support are determined.

Keywords: Underground structures; soils; concrete support; voltage; the experiment plan; modeling; finite element method

The article confirms the importance of garrison services in ensuring combat capability and combat readiness. It was stated that the service industry of any military town should become a heuristic model of building service networks for all other populated areas and their social groups.

Keywords: Garrison services, combat readiness, combat capability, Armed forces, architectural and planning organization, defense infrastructure

Discusses actual problems of construction of large-span buildings. Studied the experience of construction of Olympic facilities in Sochi. Provides an overview of the positive qualities of the proposed design solutions with technological and economic points of view

Keywords: organization of construction; capital construction; long-span buildings and constructions, reinforced concrete constructions

In general, games like duels, in which each of two players has the goal to eliminate the enemy, are quite a popular problem from game theory. The problem becomes much more complicated when you add players. The term ""truel"" we understand the rivalry three players. They are assigned some values of accuracy the probabilities of eliminating the opponent in one shot. At each stage of the game is chosen by the active player (the selection rule active player either randomly or by prior agreement between the players about their participation). The active player chooses an opponent to eliminate or passes the course. Developed mathematical models for different formulations of the conditions of the game (random or fixed choice of the active player). For each model are analyzed based on the probability of winning in the ""truly"" of accuracy, based on randomly generated program values. Comparing analytical solution and simulation, we see that they have the same answers. For large dimensions similar games analytical method requires complex calculations, so an acceptable alternative is the simulation method. Data research nahegelegenen in political and judicial practices, as well as analytical tools for the study of the theory of evolution.

Keywords: truel, simulation, game duel three persons,Markov chain, variance of natural selection, the matrix of transition probabilities, fundamental matrix, stochastic process, the three prisoners dilemma, game theory, coalition games

A method and algorithm for automatic control of forest machine systems under the canopy of the forest is proposed. A method for automated management of information flows of logging processes is developed, based on the created three-dimensional digital spatial models of real forest areas subject to felling. At the same time in the management of machines a system is used that provides synchronization of virtual models with actual data, which will allow full accounting of processes, changes and displacements of extracted wood resources

Keywords: Forest canopy, method, algorithm, synthesis, technology, positioning, automated control system, digital model, modeling

The aim is handling trees seed non-thermal plasma activated water and its research results to improve the percentage of seed germination and rapid germination. Water treated plasma, has the ability to activate the germination. This significantly changes the acidity of the environment. Study on the treatment of seeds with non-thermal water plasma was conducted for Scots pine (Pinus sylvestris L.), Norway spruce (Picea abies L.), silver birch (Betula pendula Roth.), ash-leaved Maple (Acer negundo L.). Germination pine seeds soaked in plasma activated water for 2 minutes, increased to 22%, 11% spruce. Such seeds have a short period of germination. The period of germination was reduced to 1 day for birch and maple for 3 days for a total increase of germination by 18 and 16%. Phytopathological analysis identified a certain bactericidal effect. The number of seeds infected with fungi of the genus Alternaria, Penicillium and others decreased. Treatment did not affect the infestation of seeds fungi of the genus Spicaria, Germescium. As a result, there have been major findings and recommendations on the application of plasma activated water for seedbed preparation seed trees.

Keywords: water, non-thermal plasma, seeds, Scots pine, Norway spruce, silver birch, ash-leaved Maple

In this study, the task of optimizing the supercomputer CPU cooling system with a heat pump in the reverse Stirling cycle through numerical modeling of heat transfer processes in the test object The article presents numerical modeling of heat transfer processes in the cooling system of the supercomputer processors with a heat pump on the return cycle. We investigated the numerical model of heat transfer process in the system of CPU "cold" cylinder and heat pump system "hot cylinder" - coolant. As a result, obtained according to the thermal resistance of the system of CPU "cold" cylinder and heat pump system "hot cylinder" - coolant depending on the coefficient of heat transfer and on the value of COP of the heat pump

Keywords: processor, heat flow, the thermal resistance of the Laplace equation, heat pump, heat exchange, reverse Stirling cycle cooling system

The structure of synthesized ferroelectric samples of PbSc0.5Ta0.5O3 after mechanoactivation were studied by means of X-ray absorption spectroscopy(XANES), X-ray diffraction (XRD) and scanning electron microscopy (SEM). Based on the combination of effective experimental methods and computer modeling of theoretical X-ray absorption spectra near the L3 - edge of tantalum and lead was studied character of structural distortions for investigated samples after mechanoactivation.

Keywords: Ferroelectrics materials, mechanoactivation, XANES, defects

The analysis of the state of transmission electrik lines, on the example, one of the districts of the Rostov region. The prospects of the use of symmetrization devices unbalance, what allows to increase the reliability of power supply to agricultural consumers.

Keywords: stream of the failure, electricity, the balancing device, emergency operation, recovery time, failure, reliability, multilevel inverter, analysis, power line, user.

The article presents an approach to predicting changes in the dynamics of events, on the example of traffic analysis, using statistical data. Perfomed analisys of traffic sniffer systems as queueing system. Presented the relevance of the forecasting traffic changes. The pattern matching algorithm allows you to build a forecast, both for regular dynamics, and for unexpected bursts. The prediction algorithm allows to improve the work of traffic analysis systems for periods of high load.

Keywords: Network monitoring, traffic analysis, forecasting, queuing system, random events, service requests

V stat'e rassmatrivajutsja problemy zhelezobetonnyh proletnyh stroenij dlinoj menee 35m. provoditsja analiz otechestvennyh i zarubezhnyh balok proletnyh stroenij, pri analize uchityvajutsja takie harakteristiki balok kak, ves konstrukcii, mezhremontnyj srok sluzhby proljotnyh stroenij, rastjagivajushhie naprjazhenija, vosprinimaemaja nagruzka, dolgovechnost', sul'fatostojkost' balki.

Keywords: tipovoe proektirovanie, balki, zhelezobetonnye konstrukcii, proljotnye stroenija mostov, tipovoj proekt, ramno-nerazreznoj, mosty, nagruzka, mezhremontnyj srok, prochnost', dolgovechnost

The article is devoted to the results of studies of the initial modulus of elasticity of tuffs on natural porous aggregates of Kabardino-Balkaria, with compensated shrinkage with prepared additives, both in quartz and tuff sands. The article presents the results of experiments on determining the initial modulus of elasticity of tuffs of different preparation formulas. The values ​​of the correction coefficients in the well-known formula for the dependence of the initial modulus of elasticity of lightweight concrete on its cubic strength and the volume weight of dry concrete, depending on the formulation of tuffs are proposed.

Keywords: Modulus of elasticity, tuffs, light concretes, porous aggregates, tuff, tuff sands, compensated shrinkage

The article substantiates the necessity to address the effects of fog and rain when designing mobile robotic platforms and to define the fog numerical indicators and conditions of its occurrence. The common braking system structure and the working principle of brake disk drying through periodic rubbing of brake pads and disks are brought. The electrical diagram of brake control system with microcontroller and the fog and rain sensors and reliability analysis of this device are given. In a proposed control device operation algorithm the conditions of fog occurrence and the sensor parameters are considered. The algorithm is required to create a software system for mobile robotic platform.

Keywords: mobile robotic platform, fog, braking system, microcontroller, sensors, control system, software system

the paper presents the analysis of volumes of waste wood processing industries in the form of sawdust and considers modern directions of their use. It justifies the rationality of production of fibreboard by using a semifinished product obtained from sawdust. The mathematical description of the process of production of wood-fiber plates with the addition of a semifinished product obtained from sawdust as the total weight, thus establishing the quantitative relationship of studied process parameters physico-mechanical parameters of the finished plate.

Keywords: Zyryanov M.A., Aksenov N.V.

In modern conditions developed and used hydraulic calculation of gas networks program. With them, you can get the pressure value at the nodes of the distribution system of gas supply, costs, and gas velocity in the settlement areas. But do not count in these economic aspects, ie, It is not determined the most economical option, which can be obtained by optimizing the individual characteristics of the gas network. These characteristics in the development of the concept of gas supply is a rational distribution points gas reduction and determination of optimal kolichestva.Priveden calculation of the optimal number of the PWG and the optimal diameter of individual sections of the network of medium pressure gas pipelines to ensure the best economic performance timing system. Defined pressure regulator bandwidth capacity for its stable operation. To determine the effect an increase in the inlet pressure on the diameter of the pipeline.

Keywords: optimum range, the optimum load, optimization of pressure, the diameter of the gas-supply circuit, the hydraulic calculation capacity pressure regulator.