the paper considers the comparison of natural modes for the first and second transverse oscillation modes obtained by numerical simulation and finite element package of analytical calculation of the core model with an elastic element based on the application of the Euler-Bernoulli hypothesis. The analysis compared waveforms for different values of the defect shows their satisfactory agreement.

Keywords: rod design, vibrations, defect, finite element modeling, analytical modeling, waveform

The main resources are a turbocharger units are bearing unit and elements of gas oil seals. The article discusses various ways to repair and restore parts of the turbocharger. One repair method is a method of installing additional details. A review of options for its use. Identified the strengths and weaknesses are identified technological features of application. It calculates the magnitude of interference when installing doolnitelnoy, ensures reliable operation in all modes of operation of the turbocharger.

Keywords: turbocharger, more detail, bearing assembly, deterioration, defect, tightness of the sleeve bearing, average body, turbocharged, thermal distortion

The paper discussed the mechanism of formation of polycrystalline hexagonal barium ferrite. The influence of alloying elements on the location of Fe3 hexagonal block R, on the border of hexagonal and spinel blocks (RS). It is shown that the presence of weakly diamagnetic ions or dopants in these positions provides specific properties of hexagonal ferrites and their practical use.

Keywords: hexaferrite barium, dopant, magnetic properties, the mechanism of formation, anisotropy, polycrystalline, magnetization, Mossbauer spectroscopy, the coercive force, Curie temperature

In article the comparative analysis of various versions of circuitry solutions of realization of devices of registration of ionic current, is made, theoretical justification of almost known advantages and shortcomings of the considered devices. In article are given the experimental data obtained at registration of a signal of ionic current by various devices. Is made processing of oscillograms and shown qualitative advantage of the device of registration of ionic current with the stabilized boost converter for the solution of problems of registration of a signal of ionic current with increased requirements to quality of a signal.

Keywords: internal combustion engine, signal of ionic current, energy, spark discharge, device of registration

In the article proposed indicator of the effectiveness of the implementation of an automated search of the optimal route of transportation of the wood. An example of evaluation of the dispatching process of extraction of timber from the cutting area, with example calculations for two cases. Conclusions are drawn about the possibility of its use for evaluating the effectiveness of information systems.

Keywords: logistics, wood transport, information systems, optimal route, economic efficiency, conditional profit.

The technique of determination of local atomic structure in the vicinity of absorbing atom in the case of the presence of strong correlation between fitting parameters is proposed. This technique is applied to three test signals simulating the Pt L3-edge EXAFS spectra of Pt/Ag bimetallic nanoparticles. The test results demonstrates the improvements in precision of determined parameters comparing with common technique.

Keywords: Extented X-ray Absorbtion Fine Structure, EXAFS, multiparameter curve fitting, correlation between fitting parameters, bimetallic nanoparticles, local atomic structures, CUDA

Currently, there is a certain quantity of different game level generators. However, most of solutions in this segment have typical disadvantages, such as lack of versatility, specialization on specific game level types, game logic or incompatible output data. Some of these solutions require additional software or special hardware, when some of them are encapsulated in a gaming application without any possibility of interaction with user. These problems could be solved by developing partly-automated universal game level generator that supports certain level of human control. Proposed approach involves partial automation of the process of creating game levels. Designed generator is implemented as a dynamic link library that contains all necessary tools for generating game level. The library is the main part of the software package. This library implements several different methods of generating game levels that include functions for generating basic path, creating static geometric objects and placing interactive game objects. This software package also has specific tool for game level designer that allows declaring and designing pluralities of basic level elements which are used by the generator.

Keywords: game level, game level creation, game level generation, user managed generation, dynamic link library

In this paper the environmental effects on the vibrational properties of individual carbon nanotubes were studied by means of Raman spectroscopy. The individual nanotubes were first synthesized by catalytic chemical vapour depositon method. Then their geometric structure was determined by electron diffraction and high-resolution electron microscopy. The intrinsic experimental relationship between RBM frequency and the tube diameter was obtained and certain deviations from the expected 228/d relationship were found. The effect of the substrate was identified as the most probable explanation for these experimental observations. In order to quantify the origins of deviations, we propose a comparison between our experimental data and calculations performed in the framework of elasticity theory.

Keywords: individual carbon nanotubes, Raman spectroscopy, radial breathing modes, environmental effects

In this paper a method for the atomic structure analysis of single-walled and multi-walled carbon nanotubes based on the combination of Raman spectroscopy and electron diffraction is presented. We discuss the main criteria of this method and give an example of index-assignment of individual double-walled carbon nanotube. We argue that the combination of several techniques gives the most accurate and unambigous structure identification.

Keywords: individual carbon nanotubes, Raman spectroscopy, electron diffraction, electron microscopy

The paper proposes a method of calculating the amount of visual information in an image. The method is based on the model of local analysis in the early vision. We are talking about the information perceived by an observer under certain conditions, not about the information contained in the raster image per se. Simple striate cortex neurons respond to the simple visual features of image, for example, the bright stripes in a dark environment, and the brightness gradients. To evaluate the amount of information in the image, it is possible to take the ratio of the number of activated neurons to the total number of neurons in a model. It is necessary to consider the angular size of the image to calculate the value of the estimate.

Keywords: Simple visual feature, raster image, information, entropy, redundancy, simple striate neuron, Gabor function, computer simulation

In this report, we propose an approach to the automatic extraction of such components of the image, that are most useful for human observers to solve the recognition task. This approach is based on the concepts of psychophysiological mechanisms of grouping the simple features at the preattentive stages of visual processing. A method is based on digital image processing by a software implemented model "filter-rectify-filter". The extraction of the most informative areas of the photograph is based on finding local maxima of the model "outputs". The calculation results indicate that the areas of the image containing spatial modulations of the local features may be very useful for the recognition of faces.

Keywords: Second order visual mechanisms, image filtering, regions of interest, face identification, computer simulation

The results of research of characteristics of behavior under stress, depending on the individual level of testosterone and sex composition of the group are presented in the article. Study was an experiment with natural biological model of a small social group. The laboratory mice were used as model animals. The living conditions in the modern city were modeled in experiment. The influence of external factors to the level of testosterone in the animals blood, both males, and females, are demonstrated. A correlation between the characteristics of the individuals behaviour in the group and the concentrations of testosterone was detected out. For the males the nature of this relation was not dependent on the number of stress factors: the dominant male-mouse has had the highest rate of male sex hormone in the blood. The females of the control group had the opposite trends: most active female-mouse had testosterone levels below the average. In stress the feedback watched for females became similar to trends specific for males. The same-sex groups had feature consisted in higher concentrations of testosterone in the blood of the test mice compared with animals that belong to bisexual group, as well as the more aggressive nature of relationships in group and the lack of a dominant individual. The parallels between the obtained results and data of the researches of social processes are considered.

Keywords: biosocial human nature, social behavior, life experience, biological model, testosterone, gender

The technique of the research problem solution of influence of different types of concentrators on the stress-strain state of main gasline pipes involving compact flat specimen is considered. The algorithm of carrying out numerical experiment and its realization in the APDL language in the ANSYS is developed, one of possible forms of additional stress concentration – a circle is considered, and shown its influence on stress redistribution, the size and a form of area of a biaxial stress.

Keywords: stress-strain state, flat specimen, stress concentration, finite element method, automation of finite elements grid creation, defects in pipes, weld

Abstract: Operation of motor transport and special equipment is carried out in difficult conditions, the impact of environmental conditions (temperature, humidity, dust, wind, solar radiation) and changes in modes of operation of the machine. This affects the performance of equipment, the number and complexity of repairs. Away from fixed bases (in the field), the problem is particularly acute repairs. One of the most energy-intensive and expensive works are welding (welding parts with a break, welding cracks, fusing metal layer on the worn surface, metal cutting). In this work the welding equipment affect the voltage drops in the supply mains, therefore, produces a large number of failures such equipment. After the equipment is accompanied by an increased amount of electric power consumption, this results in material costs. Previously proposed equipment has improved mass, which reduces the efficiency of the welding. Based on this study was proposed innovative design welding inverter using the resonance effect, with enhanced reliability, low-cost design version (in terms of mass production). In order to improve the reliability and reduce the cost of the proposed design of inverter proposed a number of new approaches. Full-bridge inverter is studied welding power source with the implementation of the resonance effect with a stable and smooth operation, high reliability, because the circuit of the inverter is not sensitive to changes in the supply voltage.

Keywords: repair, motor trucks, welding, full-bridge inverter welding power source, the resonance effect.

Intensification of agricultural production involves a large – scale use of fertilizers, plant protection means against pests, diseases and weeds, all those are used within various modern agro-technologies, which leads to soil intoxication with residual amounts of pesticides and agrochemicals. Therefore, a comprehensive approach is necessary for preparing the soil for further sowing. We have carried out the research using activated carbons obtained from agricultural residues.

Keywords: detoxication, pesticide, toxic substance,active carbon, nanomaterials, (nano)chips, pre-sowing seed treatment;growth, development, the incidence of plants, the quantity and quality of their crop