The article is devoted to the mathematical modeling of the plant`s development. The graph theory is used to model the plant objects with different types of branching and its growth.

Keywords: model, the plant object, stem, directed graph

In this paper the mathematical model of automatic positional hydrodrive of actuators machines with hydraulic control circuit of high efficiency original design. The model is formed with a view of the developed structure of the hydraulic drive and control system comprises three subsystems: a mechanical, hydraulic and control. Using the software package Matlab 2012 investigated position loop is characteristic of the rotary mechanism for the technological equipment according to the criteria of speed and accuracy.

Keywords: mathematical modeling, position hydrodrive, the control of unit, accuracy, high-speed performance

In this article considered the questions related to how the deformability is influenced in concrete beams, in which steel reinforcement replaced with fiberglass GFRP or a combination (hybrid). The latter is very important, as the current standards do not account the increased in strength of composite reinforcement, whereas its elasticity modulus is lower than the elasticity modulus of steel reinforcement.

Keywords: concrete, reinforced concrete, strength, deformability, steel, fiberglass reinforcement GFRP, composite, the modulus of elasticity, deflection

The main questions of tehnology and mechanisation process of construction of global system is considered. Movement of prepared connected tube system according the project makes by shifting of initiative sections.

Keywords: tube system, contact zone, self-construction, prospectivity.

In article questions of improvement of a technique and theoretical bases of electrocatching with reference to problems of fight against drop ablation in a working zone in the conditions of galvanic production are considered.

Keywords: electrocatching, drop ablation, working zone, barbotage, charge, drop

  Semicars, as is known, are a universal rolling stock. For today in RZD and in transport HIGH SCHOOLS of the country works of research character on regulation and operation optimization by a universal rolling stock are actively conducted. In article a task in view on optimum control empty cars of various patterns of ownership with use of a transport problem.

Keywords: Park of semicars, cars own involved (ВСП), empty a traffic volume, the First cargo company (ПГК), the Second cargo company (ВГК), and the basic plan

Currently actively promote seismic associated with the use of special devices, so-called energopoglotiteley. Are very effective konstrutsii energopoglotiteley in which the working element undergoes torsional strain. These EPA have the maximum energy absorption with minimal weight.

Keywords: Earthquake protection, energy absorption, the diagram of deformation, plastic deformation, plastic torsion

The model of increase of efficiency of the created system of transportation of a municipal waste is presented. Need for carrying out modeling and the actions connected with reorganization of system, because of possible increase in total expenses is proved at shift of positions of reloading stations of rather optimum points owing to local conditions of the territory of municipality.

Keywords: a solid municipal waste, technological process of transportation, two - stage transportation

The algorithm of construction of reflections from the screens of complex shape. Geometric modeling based on the proposed algorithm makes it possible to conduct a rapid assessment of the distances between the fire building complex geometry, and between the process equipment, which is characterized by heat. Analytical dependences describing the process of building reflections, software algorithms and examples of calculations.

Keywords: geometric modeling, geometrical optics, geometrical acoustics, the laws of reflection

  To assess the strength and deformability of the railway road bed must have analytical expressions for calculating the oscillation amplitudes at any point in the road bed and beyond. The results of experimental determination of the amplitudes of the oscillations in the sub grade of sandy loess sin the Republic of Uzbekistan. Shows plots of the decay amplitudes of the oscillations in the sub grade and beyond by passing high-speed trains. The analytical dependence of the calculation of the amplitudes of the oscillations.

Keywords: Embankment, roadbed, the amplitude oscillation damping, vibrodinamika, loess-like sandy loam

  The article is devoted to the methodology of construction of fields of knowledge through the use of procedures inversion, allowing to most fully present the essence of the studied object, its inner content, expressed as a unity of diversity contradictory properties ensuring its integrity required for the generation of new knowledge as an increase to the number of criteria for the classification and, accordingly, the space of the classification.

Keywords: conceptual design, fields of knowledge, classification, inversion

This article is related to technological problems of cavities with kamufletnyh explosions, during which the temperature in the cavity greatly exceeds the initial temperature of the array. Often these cavities are created in an array of rock salt. Because the salt even at light loads demonstrate expressive flow properties, it is interesting solution to the problem of creep salt massif with a cavity under the action of a force (pressure inside the cavity and the pressure of the soil), and thermal loads.

Keywords: heterogeneity, creep, highly elastic deformation, hydrochloric array coupling equation, the integral relations

  The paper contains a mathematical formulation of the problem of synthesis interferometric determination of the relative coordinates of the radio-emitting objects. Option structural implementation of the interface for it to work in real-time microcomputer-based system of passive location proposed. Version of the algorithm operation interface includes a primary carrier detect and calculate the phase difference between the received signals was proposed. Hardware requirements are formulated its implementation.

Keywords: interface structure, the coordinate, algorithm, the interferometer, radio-emitting objects

  Mathematical models describing the process of group wood barking in the barking drums are suggested.

Keywords: group barking, mathematical model, barking drum

It is proposed software-technological complex for modeling, which uses L-systems (Lindenmayer Systems) as the tools of modeling and visualization. The main purpose is to construct models of processes and structures that have a fractal nature. The complex supports different types of L-systems: deterministic context-free L-systems, stochastic L-systems, parametric L-systems, context sensitive L-systems. The developed tools have been used to model and analyze the socio-economic processes.

Keywords: L-systems, modeling, Fractal, Self-similar structures, Production rules, Grammar, Graphic interpretation