The paper discusses the active microwave elements with periodic structures, located in the near ​​radiation zone, that are based on optical technology transfer by analogy with controlled electro-layered structures. Among the considered: microwave antenna with controllable operating wavelength and radiation pattern width and its analog - selective multilayer dielectric mirror. Results and analysis of the main methods of modeling of microwave antenna and its periodic structure are discussed. Obtained characteristics of antennas in their experimental implementation are presented. The basic technology of antennas manufacturing and influence of their periodic structures manufacturing quality to accurately reflect the operating wavelength and the width of the pattern to the desired value are defined. Applications of antennas designed as shapers of the probing radiation in sensor and medical applications are shown. In particular, we discuss the creation of dielectric permittivity sensors and microwave treatment systems with controllable wavelength.

Keywords: microwave antenna with a periodic structure, located in the near radiation zone, selective multilayer dielectric mirror, modeling, working wavelength, radiation pattern, sensor applications, the dielectric permittivity

The paper presents a technical-economic analysis of the perspective of development of domestic forestry machine-building in the conditions of import substitution. The authors substantiate and prove the prospects of using domestically produced harvesting machines in logging works, particularly the machines based on caterpillar tractors OTZ-300 and OTZ-400, fitted with modern foreign (in prospect - domestic) technological equipment. Using logging machines made by “Amkodor” company during cutting operations is also economically justifiable. In particular, in difficult natural-manufacturing conditions (the third category of soil) vehicle operating costs on a work cycle of machine complexes by the company “Ponsse” make 1081,7 rouble/m³, of machines by the company “Amkodor” – 848,4 rouble/m³, and of machines based on caterpillar tractors by LLC “OTZ” the costs make 407,7 rouble/m³ on the average. Specific capital costs are 2862, 1215,2 and 560,5 rouble/m³, respectively. Hence, we can draw a conclusion that machines and machine complexes based on caterpillar tractors of cross-country capacity provide stable productive work with high technical-and-economic indexes in difficult natural conditions.

Keywords: import substitution, logging machines, technical-economic analysis, perspectives

The efficiency of a timber harvesting company depends primarily on the proper selection of technologies and systems of machines that would satisfy as much as possible the natural - production requirements and the conditions in which the company operates. In the timber harvesting regions of Russia operating machinery conditions are quite different from each other. They differ in taxation indices of wood, soil, rainfall, terrain, temperature regimes. In this research the article classifies machine systems and processes to identify similar groups, which allow providing advice on their use in the various natural - production conditions, both individually and in various combinations. Machines are classified by the condition of their use depending on the terrain, soil conditions, the average volume of tree-length material and its maximum diameter. Technology processes are classified by types of finished products (wood, tree-length, assortment, chips, etc.), by place of processing of the object of labor, etc. Classification allows you to specify a limited number of the most appropriate to the specific natural - production conditions of technologies and machine systems.

Keywords: timber harvesting work, the classification of technological process, timber harvesting technologies, the formation of machine system, natural - production factors, logging waste, processing of brush wood

Every year the number of users of the global network Internet. Due to the rapid pace of development of portable technology is the most relevant method of Internet connection is a wireless connection. In a Wi-Fi network provides for the use of the access method to a common transmission medium CSMA/CA. The method is probabilistic in nature, which ing does not guarantee a successful message transmission in the case of high inten-zivnosti network traffic. For this reason, networks that use this access method, are ill-suited to address control tasks in real time. Some modification of the access algorithm CSMA/CA eliminate such disadvantages of Wi-Fi networks, such as: - inability to use such networks for solving control tasks in real time; -.the inability of priority service subscribers. In the article the results of researches of possibility of correction of the access method CSMA/CA by applying an intermediate driver in the stack of network drivers.

Keywords: intermediate driver, access method, wireless network, collision, medium

Reflects the results of work aimed at finding new Technical solutions to reduce power consumption in crushing lumpy rocks in the jaw crusher. Main technical solutions for advancement the jaw crushers are presented in the form of Intellectual matrix of evelopment. The ways of improvement construction jaw crushers in order to increase process efficiency crushing

Keywords: rock, crushing, matrix of development, patent, jaw crusher

The article presents an approach of calculation of evaluation of manufacturer risk to take the wrong decision, based on the results of criticality assessment, received by expert methods of analysis of system reliability in its design stage. The problem of realization of the risk-oriented thought (one of the most important ISO category) is considered. The analytical dependences for calculating risk amount are developed. The dependences take into consideration various probability distributions and cases where the probability distribution is unknown. Using of proposed method allows increase the efficiency of actions aimed at improving of products quality.

Keywords: criticality assessment, reliability engineering, manufacturer risk, wrong decision,expert method

This article provides an overview of the technical solutions of equipment to deal with trees and shrubs, conclusions are drawn on the basis of the review and the direction of further improvement of the equipment and technologies to deal with trees and shrubs.

Keywords: trees and shrubs, mulcher, reliability, stump grinder, rotary actuator, reforestation

Non-invasive cuff-free methods of blood pressure measurement are being developed actively that will make measuring in everyday life conditions comfortable. The method offered includes 4 steps: choice of a finger, calculation of a generalized skin option, presetting and measuring. To improve the accuracy of measurements, the finger with the greatest temperature sensitivity was revealed and the value of generalized skin option was defined during the experimental verification. In accordance with the developed algorithm the presetting step is meant to determine the coefficient of proportionality which is necessary for measuring blood pressure. This method enables the increase of accuracy of measurements due to taking into account the adaptation to changes in the ambient temperature and individual skin options.

Keywords: control, blood pressure, temperature, distal phalanges, blood, environment, skin option

The method of the identified signals relationships combining is proposed. Those relationships are represented in the form of precedents of the distributed control system. The method is based on the cluster analysis for further identification of the most interrelated precedents with the aim of source localization of emergency

Keywords: precedent, cluster, decision tree, gradient, data mining, reliability, method

The article introduces a new advanced algorithm design foam suit, taking into account the expected exploitation of clothing in conditions of hydrostatic pressure, which determined the rationale for the introduction of common cycle design work additional modules problem-analytical content. In these modules for information on effective parameters of dry constructions (human heat loss and required for the thickness of the thermal protection areas), calculations shall be made in the numerical simulation of sphere that iterations mode algorithm design, allow theoretically test the line selected foam it required thermal protection. The proposed algorithm justified by the peculiarities of traditional methods of designing clothes and existing development methods of calculation of wetsuits, as well as conformity of vector design priority market trends.

Keywords: designing clothing, wetsuit, algorithm design, thermal protection, hydrostatic pressure, stages of design works, light industry, underwater tourism,industrial technology

A description is presented of software to convert the results of FEM analysis in an external 3D format for visualization this results in stereo with the ability to display a grid of geometry and Mises stress in the form of a color fill. Developed a stereo viewer of 3D models in anaglyphs method with using shaders. Developed graphical user interface. Studies done of the influence of the scene parameters on stereo image on the projector. Stereo effect was achieved using 3D models with materials, calculation of specular light, replacing with a cyan on the green filter and made the design of stereo scenes for depth perception.

Keywords: simulation, computer graphics, geodesic domes, convertation, visualization, method of anaglyphs

The article considers the problem of secrecy in the distribution of the encryption key. The structure of the stand quantum cryptographic network based on commercial autocompensation quantum key distribution system with phase coding states of photons was proposed. The process of integration a quantum key in encryption protocols telecommunications network are described. The results of experimental studies on the use of quantum keys in a data network.

Keywords: Quantum key, cryptography, protocol, telecommunications network, encryption.

Content Based Image Retrieval is a one of the most popular search methods used in large-scale databases. Comparison the query image with each image of large scale database leads to lowering the systems performance. In this article are considered different clustering algorithms. They may be used for optimizing image searching access period.

Keywords: CBIR, clustering, K-means, fuzzy C-means (FCM), Possibilistic C-means (PCM), bio inspired algorithm

The purpose of the presented work is carrying out the system analysis of statistical data on results of application of the modified binary algorithm of bats at the solution of dynamic problems of discrete optimization for detection of features of its application and specification of rules of control. In article justification of broad application of algorithms of agent-based metaheuristics in the solution of optimizing tasks is executed. At the level of mathematical statement one of actual tasks which decision is demanded currently is shown. The shown task is interpreted on a concrete example in terms of graph theory. For its decision the binary algorithm of bats which allowed to solve successfully specified problem is reasonably chosen and modified. The last is confirmed by the presented results of three series of experiments. Authors made the detailed analysis of the specified results which materials is the main part of work. In the conclusion of article the list of concrete recommendations for increase of efficiency of binary algorithm of bats for the solution of dynamic problems of discrete optimization in general is created.

Keywords: system analysis, discrete optimization, graph theory, dynamic problems of discrete optimization, agent-based metaheuristics, bat-inspired algorithm

This article discusses some of the problems arising in the study of political processes of network modeling methods. The relation of concepts, models and their practical application in the analysis of political events is analyzed. The purpose of work is to examine the hypothesis testing problem in the practice of political analysis using empirical methods in the field of cooperation between public institutions and networks of civic engagement structures. It is shown that the use of network modeling methods to move from descriptive methods, cluster analysis to statistical models, reproducing the interaction of political subjects, which makes it possible to produce test of hypotheses by empirical methods. Statistical models combine the methods of qualitative analysis and quantitative methods of hypotheses verification and application of the results of various concepts in political practice. Revealed the limitations of the use of the research capacity of the network models, associated with incomplete empirical data obtained during the field research that requires the experiments, various forms of observation and interviews. Results of the analysis and forecasting can be used in the practice of "network management", aimed at the impact on the network structure by changing the institutional rules and regulations.

Keywords: network statistical models, network management, policy diffusion, diffusion of innovations

Pedestrian navigation systems with redundant number of inertial information sensors have a great potential in reliability, measurement accuracy and low level of noise. Therefore the aim of this article is to investigate the features of constructing the inertial measurement unit comprising the redundant number of the primary information sensors. To achieve this goal, the mathematical model of the measurement unit implemented as a square pyramid with combined sensors of the acceleration, angular velocity and magnetic field strength on its faces was first analyzed. Then, the data processing algorithm of the measurement module was discussed. Finally, the conclusion is made about the feasibility of using the considered redundant measurement unit as the sensing element of a miniature pedestrian navigation systems to provide improved navigation performance.

Keywords: accelerometer, gyroscope, redundancy, inertial navigation, inertial measurement module, aggregation, magnitometer, micromechanical sensor, wearable electronics, personal navigation

The article presents information about the nature of working capital, its role in ensuring stability of the production activities of enterprises, negative trends, which entails the inefficient policy of working capital management, ways of improving policies of working capital management contractor.

Keywords: Working capital, working capital management, receivables and payables, contractors.

This article provides an overview of the technical solutions of equipment to deal with trees and shrubs, conclusions are drawn on the basis of the review and the direction of further improvement of the equipment and technologies to deal with trees and shrubs.

Keywords: trees and shrubs, mulcher, stump grinder, rotary operating element, lighting, reforestation

The article presents the results of approximating of ion current signal of the most appropriate parametrical models in Matlab software. It is shown that in spite of the high accuracy of approximation, parametrical model Gaussian, which chosen early in Matlab, have significant drawbacks. In order to eliminate the identified deficiencies authors was developed parametric model in which the discrete Fourier transform was used to approximate of the ion current signal.

Keywords: ion current, the internal combustion engine, a parametric model, a discrete Fourier transform, the Gaussian model, the approximation of a signal

Some experimental regularities obtained on the basis of monitoring and modeling the emotional perception of social processes, which are carried out from 2009 to the present moment by method of semantic differential are given. Total for this period were surveyed several thousand respondents, mainly students of Rostov-on-Don, Grozny, Vladikavkaz and Karachaevsk. And also the politically active part of the population of Rostov-on-Don. The purpose of the survey was to identify the emotional perception of the local and central political orders, own level of relative deprivation, cultural infrastructure and cultural life of the city as a whole, own emotional state. Received partial confirmation law factorization primary space of Ch. Osgood. For all these objects and any groups primary semantic signs reduced to three-four factors. However, we have shown that this regularity is observed only for the classical factorization method, in which the factors are identified based on the minimization of a specific random residue. For other methods of factoring the number of identified indicators of latent increases. Should be noted that this result was not previously observed in the literature. The second part of the Osgood’s law the nature of latent indicators as the factors of assessment, force and activity doesn't possess such commonality. For our subjects splitting primary signs into bunches doesn't occur, all signs are mixed in each factor. Results of the factor analysis, received by a cognitive part of the questionnaire has shown, as for these parameters the same regularity is carried out, as for a semantic part. All set of primary signs reduced to four-five latent factors. Cognitive part of the questionnaire has no relation to a technique of semantic differential. Common for both parts of the questionnaire is rating scales are used. And the result suggests that the observed regularity factorization by Osgood is not connected with the specific semantic space and emotional perception, and is a special case of a general factorization of any rating scale. For verification of this assumption was conducted the research results of poll SFU’s students to identify satisfaction with the educational process carried out in 2015. Questioning had purely cognitive character, 20 primary cognitive signs characterizing educational process from various parties have been used. In total, about 4,000 students were surveyed. Factorization of the classical method showed that the three indicators describe the 95% of the variation of the primary signs, and four - 97%. It convincingly shows the general nature of factorization of both semantic, and cognitive rating scales. We have suggested that the nature of such regularities lies in the psycho-physiological peculiarities of the formation of the respondents estimates. On average the person estimates any object no more than on three – four factors. In attempt to increase the number of estimated parameters is beginning to follow the correlation between them. This result makes for a fresh look at the development of questionnaires and on the adequacy of many of previous polls. It turns out that the use of large scale (the number of parameters to be estimated much more than four) does not make sense, they still rolled up to four factors. In this case the adequacy of the results will be decrease. Identify a limited perception of the estimated parameters is an additional source of errors in the measurement results. Fully it belongs to all earlier received results on a large rating scales.

Keywords: semantic differential, Osgood, semantic space, factor analysis, the classical method, latent factors, rating scales, experimental regularity factorization scales, psycho-physiological nature of the law factorization

To increase the production output of products made by winding methods from composite materials used multiple spindle filament winding CNC machines. In this paper presents a mathematical model of five-axis duplex spindle filament winding machines as a system of differential nonlinear equations to solve the problem of modeling the trajectory of movement of the working bodies of the winding machine and the results of numerical experiments carried out with this model.

Keywords: winding methods, multiple spindle filament winding CNC machines, mathematical model of five-axis duplex spindle filament winding machines

A new device is offered for the analysis of motor oil contamination of the internal combustion engine with dispersed particles. To enhance the information content of the output data and the possibility of the continuous automated monitoring, as well as improve the accuracy, efficiency and reliability of the measurement device uses opto-electronic method of analysis of pollution of motor oils based on a method of ""spot test"".

Keywords: lubricant, optico-electronic device, the internal combustion engine, motor oil, methods for analyzing contamination, optical inspection method

Abstract: This paper presents an overview of the current situation in the field of alternative energy development countries in the world and Russia. An number of factors influencing the development of renewable energy in the world and Russia. It presents the total investment in alternative energy in the world. The prospects of growth in the Russian and global alternative energy market. The urgency of the problem lies in the energy security and the protection of the interest of the environment

Keywords: power consumption, energy saving potential, alternative energy sources, energy strategy, energy balance, investment, government support, power supply

Air environment workspaces enterprises building industry characterized by complex migration cycles of matter and energy. The priority is to identify the isselodovany vzaimo¬deystvuyuschih in this process objects as dynamically developing systems. The implementation of any production and technological process is accompanied by the mandatory application of a set of measures to ensure the specified level of MPC in the air.

Keywords: Health, work area, JBK, dust pollution, air environment, scrubbing liquid, process efficiency, MPC.