The current work considers the problem of arrangement optimization of non-convex polyhedrons into a minimal height parallelepiped container. The no-fit polyhedron based algorithm is proposed to solve described task. The no-fit polyhedrons are used not only for providing conditions of the polyhedrons mutual non-intersection but also for finding the placement points. The current paper provides the block diagrams and the pseudo code of the algorithm. Some examples and computational results are also given for public input data. 

Keywords: packing, no-fit polyhedron, non-intersection, optimization, arrangement

Strengthening of processes of eutrophication and toxification reservoirs examined in the aspect of emergency. Shows the negative effects of "bloom" of blue-green mikrvodorosley and proposed approaches to localization and liquidation of emergency situations caused by their massive development.

Keywords: emergencies, water, cyanobacteria, "bloom" of blue-green algae, toxification, eutrophication

This paper considers the problem of constructing the architecture of the mobile training complex of the  loading/unloading machine, which includes a crane and crane control. The work was supported by the Russian Ministry of Education (contract № 13.G25.31.0093) as part of the RF Government Regulation № 218 "On measures of state support for the development of cooperation of Russian higher education institutions and organizations implementing complex projects on high-tech production"

Keywords: Computer training complex, architecture, control, crane

The problem of cultivation of sturgeon kinds of fishes stands very sharply now. It is con-nected basically m by that despite of interdictions and assessed penalties uncontrolled catching of valuable breeds of fishes from a river basin Don is made practical. Factories existing nowadays on reproduction of fishes carry out the activity basically for reproduction of a commodity fish, that is don’t support a livestock of a fish in a habitat of dwelling. Therefore the strict measures directed on preservation of number of a population of sturgeon kinds of a fish are necessary.

Keywords: Main words: The control, cultivation of a fish, ways of cultivation, specifications

The question of increase of efficiency of the cooling process in the compression refrigerating machines and household refrigerating appliances. Describes a new original method of cooling of the condenser vapour-compression refrigeration machines, which is due to wet the surface of the capacitor with its further blow. Shows the complexity of the theoretical analysis of the proposed method of cooling and substantiated the necessity of experimental studies of the process of cooling of the refrigerant in the capacitor. 

Keywords: compression refrigerator, evaporative a capacitor, a new method of cooling refrigerant, energy performance, the efficiency of the cooling

Examines the historical stages in the development  of the theory of systems research management of the uncertainties, the reasons for they arise in the mathematical  model, this is reflected in an interval values in the transfer  function of the object of control. It is proposed algorithm for obtaining experimentally the interval of values.

Keywords: interval values, robust stability, the transfer function, parametric uncertainty, a mathematical model of the management system

"Assessment of ecological safety of construction materials at all stages of their existence from a pit before utilization. Drawing up of ecological passports on materials, details, products. Need of the analysis of ecological safety of existing construction and finishing materials for forecasting of possible ecological risks. "

Keywords: environment, negative impact, construction materials, ecological passport, ecological safety, reconstruction, new construction

  When using the prediction in the control of the rotational motion is necessary to construct two smooth trajectories passing through the previously measured its nodal points. As a piecewise polynomial curve that provides the desired smoothness, consider interpolating cubic splines, which are between nodes represent a cubic parabola, continuously connecting the nodes with the smoothness of degree 2. In imposing additional boundary conditions, these splines minimize its total curvature.

Keywords: Interpolation splines, management tasks, prediction algorithms, kinematic characteristics, Hermit splines

Results of the flight research spent in April - among students of RSUCE are brought May, 2012. The Main objective of research - definition of the emotional relation of students to local and central political orders. Primary data are received by questioning on a method of semantic differential. By the received results semantic portraits of four types of political usages (two ideal constructions and two above-stated real orders), relative distances in semantic space between images of these usages are defined. That has allowed to calculate levels of emotional perception of local and central political usages in linear approach.

Keywords: questioning, semantic differential, affective component, group installation, political order, level of emotional perception

  The article describes the best ways spline interpolation trajectories of angular movement in the key points for solving motion control rd to the prediction of the external load. As benchmarks we examine the accuracy of the approximation of the drive and the complexity of calculation of coefficients of splines.

Keywords: Trajectory, Lagrange splines, splines Ferguson, interpolation

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 article considered the questions related to the strength of normal sections in reinforced concrete beams, in which steel reinforcement is completely or partially replaced by a fiberglass rod. It was established that the strength of such beams is less, but the strain is significantly higher compared to the traditional reinforced. Calculating with current standards dramatically overstates theoretical bearing capacity of these beams with composite reinforcement

Keywords: concrete, reinforced concrete, strength, normal sections, steel, fiberglass reinforcement GFRP, composite materials, research

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