A study of the accuracy of the determination of corrections into the distances, measured by radio-electronic systems, is executed for moist component of refractive index. The original formulas of the determination of corrections for moist component into the inclined distances are obtained.

Keywords: Atmosphere, Refractive index, Moist constituting, Correction into the distance

The problem of interaction of mutually perpendicular magnetic fields in superconductors is considered. Possibility of use of a nonlinear susceptibility of superconductors for measurement of a magnetic field is shown, the assessment of sensitivity of the cryogenic probe magnetometer is carried out.

Keywords: superconductor, magnetometer, SQUID, cryotron, the crossed magnetic fields, non-linear magnetic, cryogenic probe

  In given article the design procedure of a matrix of a feedback on a vector of coordinates of a condition is offered. In its basis association of two problems is necessary. The first is the problem of indemnification of zero of own and mutual transfer functions of the system, the second - a problem of maintenance of monotony of course of processes in system. Problems such as also can be solved: a problem decoupling and a problem of maintenance astatic channels of control. Updating is understood as reception of a ratio in a general view for a matrix of a regulator of a feedback of system of modal control. The received system provides monotony of the transitive characteristic due to indemnification of set of zero of own and mutual transfer functions in system of modal management. From the technological point of view the system provides absence перерегулирования at course of technological process. The offered decisions in suggested article can be used in various areas of a science and techniques. 

Keywords: modal control, indemnification of zero, updating of algorithm of calculation of a feedback, monotony of the transitive characteristic

Combined method which allows analyzing parameters of the nanoscale atomic and electronic structure of materials relying on three different methods (x-ray absorption spectroscopy (XAFS), x-ray diffraction (XRD) and Raman spectroscopy) was developed. The method was applied for the study of nickel oxide nanoparticles, which serve as an efficient catalyst for the artificial photosynthesis process. 

Keywords: solar energy, artificial photosynthesis, NiO, Raman, x-ray diffraction, XAFS

We have carried out the analysis on the scientific and technological literature on methods of calculation and analysis of the x-ray diffraction, x-ray absorption and Raman spectra used to analyse the structure of the materials for hydrogen storage under realistic operating conditions. The simulations were carried out for the series of small palladium nanoclusters with embedded hydrogen. Multiscale computer modelling was used to simulate the dynamics of structure of the materials during charge/discharge phases.

Keywords: hydrogen storage, XANES, x-ray diffraction, Raman scattering, fuel cell

  The proposed approach to the study of social engineering systems to meet all their basic features. Blurred structure of social engineering system reflects the fuzzy cognitive model; Fuzzy connection effectively evaluated using weights Fishburne; "blur" element values system and its functioning is overcome by introducing linguistic variables and their term-set fuzzy classifiers.  

Keywords: system analysis, poorly structured and poorly formalizable processes, sociotechnical systems, fuzzy cognitive modeling

  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

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

The effectiveness of environmental protection measures depends on the complex of ecological, economic and social factors. Estimating ekologo-economic efficiency of nature protection activity it is necessary to consider specificity of the enterprises being on the city territory, existing ecological conditions, and developed system of an accomplishment of city landscapes.

Keywords: efficiency, enterprise, assessment, costs, ecology, economy, benefits, activities, analysis, result

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

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

"The results of the computational experiment, Show, that the dependence of the relatively carrying capacity on the relatively eccentricity is almost independent on the reinforcement Ratio or on and concrete type. "

Keywords: High- Strong concrete, self-compacting concrete, modulus of elasticity, column.

The article describes methods allows to control the degree of anisotropy piezoelectric ceramics based on doped phase PbTiO3. As a model of the object has been selected phase of Pb0,76Ca0,24Ti0,94(Cd0,5W0,5)0,06O3. The model phase was obtained by the following methods: by solid state reaction method and the chemical construction. For comparison phases obtained by these methods were used modern analytical research methods (DTA, TGA, XRF, XRD, power and tunneling microscopy, computer-program research results). Piezoceramic samples were obtained from the synthesized phases and electrical parameters were measured. Were revealed that the samples, obtained from the charge, synthesized by chemical construction had values of  piezoelectric constants d31 and d33 much more than samples obtained by the method of solid state reaction.
Keywords: piezoelectric ceramics, anisotropy, ultrasonic issue systems.

Keywords: piezoelectric ceramics, anisotropy, ultrasonic issue systems

 Theoretical model of anomalous electron emission has built for an soft x-ray irradiation of  surface elektrets, explaining the different character of correlation between energy and emission intensity of ferroelectric  solid solution PbTiO3 - CaTiO3 and nonferroelectric  ceramics CaTiO3.  Shown that  due electret surface irradiation the  Schottky area is  depleted by nonequilibrium charge carriers.

Keywords: Emission, electret, ferroelectricity, Schottky area