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  • Multiagent simulation of DDoS-type network attacks

    The paper describes the problems of information security of internet services when subjected to a distributed network attack. Describes the multi-agent model of attack. A system software simulated attack to study its properties in real time. The analysis of simulation results. An approach to maintain server stability under high load. Described hike proposed to implement on the basis of mechanisms of method "flood-gate".

    Keywords: simulation, multagentnye systems, network threats, DDoS-attack, JADE, the stability of network services

  • Regularities of zinc transformation process in ordinary chernozem in the presence of different anions

    The influence of attendant anions on the transformation of zinc compounds in the soil was studied in a model experiment. The differences in the number of mobile forms of recoverable zinc in the soil, depending on its dose and form of addition were defined. Influence of associated anions on the content of metals mobile forms in the soil decreases in the order: PO42¯≈ Cl¯ > NO3¯ > SO42¯> СН3СОО¯> О¯. Transformation of zinc compounds during 2-year period after the receipt of the metal in the soil has been studied.  There is no soil stabilization in ratio form for two years studying, indicating the low speeds transformation of metal compounds with soil components. Transformation of Zn in soil depends on the attendant anion, metal concentration in soil and time interaction with the solid phase of soils. The transformation process of metal adsorbed the soil goes toward to decrease of Zn mobility.

    Keywords: transformation, ordinary chernozem, zinc, attendant anion

  • Biomonitoring of environmental genotoxicity of Rostov-on-Don with Pylaisia ​​polyantha

    To assess the genotoxicity of environmental urban ecosystems appropriate to use indicators geno-and cytotoxic extract pilezii Multiflora. Geno-and cytotoxicity of the extract can be assessed by the level of chromosomal aberrations, as well as indicators of the mitotic index in the root meristem of pea, germinated on an extract pilezii Multiflora. When using indicators geno-and cytotoxicity in urban ecosystems should talk about the genotoxicity of the environment in the case of a statistically significant difference from the control of these parameters.

    Keywords: biomonitoring, mutagenicity, test object, chromosome aberrations, cytotoxicity, genotoxicity

  • Conceptual model of corporate interaction of serving public institutions

      In the article based on the analysis of corporate direction features with formal and informal (corporate) restrictions in civil service, two types of direction in the administrative sphere are found out. The first type of direction with formal restrictions is based upon marks oriented inside public institute, not outside. The second type of direction with informal restrictions is characterized by effective cooperation which has the features of partnership between the colleagues.

    Keywords: corporate direction, model, formal restrictions, informal restrictions

  • Experimental research of silicon detector current pulse processing electronic module

    Measurement results of basic characteristics of electronic module based on two specialized analog integrated circuits depending on different square area silicon detectors using source of 239Pu alpha particles is given. Processing of current pulses typically consists to convert them into a voltage by charge sensitive amplifiers and reduce noise by bandpass filters. Earlier for work with avalanche photodiode we have developed, constructed and tested two electronic modules "CRP-MDL-1" and "CRP-MDL-2". During the measurements was investigated spectrometric channel response on exposure to ionizing radiation from a source of alpha particles 239Pu and test input signals, thus we determined basic technical characteristics including energy resolution and noise characteristics. As a result, research found, that the output signal has the following timings: rise time - 1 us (levels of 0.1-0.9), peak time - 1.4 us, fall time - 1.8 us pulse width - 3.5 us. The conversion factor of module working with silicon detector (area of ​​1000 mm2 and a capacity 500 pF) consists about 10.6 mV / fC, or 0.47 V / MeV. Integral nonlinearity of spectrometer path is not worse 0.4% in the range from about 0.1 to 3.2 V. The energy resolution was 89.1 keV line of 5157 keV. The experimental studies revealed that using an external low-noise transistors developed module can be used in the construction of standard radiometric paths. It is appropriate to use the developed design-circuit solutions for implementing 4-channel chip for multi-channel radiometric and spectrometric systems.

    Keywords: silicon detector, charge sensitive amplifier, spectrometer, radiometric system, ionizing radiation

  • Adaptive control system and diagnostic system for wicket gate adjusting system servomotors of Kaplan turbines

    The article is concerned with problems of modern electrohydraulic converters control systems used to adjust wicket gate of Kaplan turbine. Linearized model of wicket gate servomotor is considered. Algorithm for online identification of parameters of servomotor is considered. Algorithm is based on recurrent least squares method. Algorithm for adaptive PI-regulator tunning is based on online optimization of functional of generalised work (FGW). Model experiments using real data show reducing maximum control error of servomotor position from 20 % to 1 %. Also methods for servomotor state diagnostic are considered.

    Keywords: adaptive control system, diagnostic system, Kaplan turbine wicket gate, linearized models, identification, recurrent least square, functional of generalised work

  • The adaptive suppression of motion artifacts at horse ECG recording

    The article deals with interference suppression algorithms that arise in the ECG signal by moving of the electrodes due to the motion of the object. It is proposed to use an adaptive filter, which reference signal is provided by the data triaxial accelerometer.

    Keywords: electrocardiogram, adaptive filtering, motion artifacts, electrophysiological signal adaptation algorithm

  • On about the features of UAV control systems with flapping wing

    In the article a number of approaches to a flapping wing pilotless vehicle control system synthesis are analyzed. Referred type of pilotless vehicles is possessed of a number of advantages compared to the traditional schemes, but requires a special approach to control system creation because of strong nonlinearity and multicoupling of a controlling object mathematical model. As a result of a control system synthesis approaches analysis a synergetic approach was marked out as the most adequate for the mentioned above type of controlling objects. An idea of prognostics application for the goal of reaching of adaptive control is also set forth. In this case parameters of an object of control and parameters of ambient both are to be forecasted whereby an adaptive behavior of an object of control is expected to be achieved.

    Keywords: control system, pilotless vehicle, control theory, “barrier of dimensionality”, synergetic approach, adaptation, prognostic.

  • The motor vehicle model for integrated navigation systems

    Modern ultra-tight integration structure of strapdown inertial systems and global positioning system, based on the linearization of the navigation measurements and linearization of measurement errors models, are not not applicable for motor vehicles navigation. The adequate standard stochastic model of the vehicle perturbed motion has been synthesized. The model can be used for the integration Kalman filter. Such correlations can result in poor real-time estimation accuracy of navigation parameters of motor vehicle.

    Keywords: motor vehicle, stochastic model, integration structure of strapdown inertial systems and global positioning system

  • The loosely coupled algorithm of integrated INS-GPS navigation system of the vehicle

    The existing approaches to the integration of relatively cheap strapdown inertial navigation system (SINS) based on MEMS-based technology and satellite navigation systems (SNS) are ineffective in relation to motor vehicles. We consider the iterative algorithm for the loosely coupled mode of integration of heterogeneous navigation systems do not intend to use the optimal estimation. The solution is obtained on the basis of the fully nonlinear model of the navigation system of the vehicle and the, therefore, is valid for arbitrary and unknown in advance nature of his movements, and, in the most general assumptions about the level of disturbances acting upon him.

    Keywords: vehicle, integrated inertial navigation satellite system, loosely coupled iterative algorithm

  • Ration of energy consumption of educational institutions by neural network approach

    The problems concerning the application of neural networks for solving the topical problem of rationing energy consumption educational institutions (EI). A scheme of the neural network approach for determination of the normative costs of electricity and heat EI. In the package Neurosolutions created neural network model of power and heat consumption of classical universities. Advantages of neural networks for solving the problem of rationing

    Keywords: standard consumption, energy consumption, educational institutions, artificial neural network

  • Computing intelligence method based on the molecular interaction model in the cell

    The authours is viewed the new method formalization of computing intelligence, which use molecular interaction model  in the cell. The method parametr adjustment is described. The technological reseach of  marketing verbal proposal  marketing strategies example influence on  the number of potential cliens is introduced.

    Keywords: Computing intelligence, molecular interaction model in the cell, bad formalizable management strategies, business planning

  • Health keeping models of professional socialization of student’s youth in uncertain social conditions.

    The article considers opportunities of model’s approach to practice of health keeping in the context of professional socialization of student’s youth in the modern uncertain social conditions. The author also suggests the health keeping factors model of professional socialization of student’s youth having a personal-focused direction.

    Keywords: health keeping models, professional socialization, student’s youth, conditions of uncertain social, factor’s model, personal-focused direction

  • Modeling of electrodynamic parameters of a multi-mode double-gap cavity for using in miniaturized multi-beam klystron’s devices

    For miniaturized vacuum klystron type devices utilization of a double- gap strip-line cavity with suspended ceramic substrate is very promising. 
    The two-mode operating mode of such cavities practically isn't studied enough; so there is the great scientific and practical interest for research of electrodynamic characteristics of cavities during multi-mode operation that correspond to simultaneous excitement of anti-phase and co-phase modes in a double gap.  
    In this article results of the 3-D numerical modeling by means of the Ansoft HFSS code are presented, and also the experimental results of the electrodynamic properties of the half-wave double- gap cavity with the suspended ceramic substrate are submitted. Optimum parameters of this design, allowing to carry out simultaneous excitement at multiple frequencies with frequency rate (K=2) are determined.
    In such cavity high values of unloaded Q factors isn’t need because dielectric losses and conductor losses can be compensated at the expense of  the negative electronic conductivity that brought by modulated electronic beam. The operating mode with frequency rate   can be used for increasing of efficiency of generating and amplifying micro devices with filament cathode and matrix field emission cathodes.  

    Keywords: double-gap cavity, electrodynamic parameters, mathematical simulation, resonance frequency, characteristic impedance, method of planned experiment

  • The algorithm for constructing the trajectories of moving objects in a video based on optical flow

    At present, the development of algorithms is particularly relevant high-level analysis of video sequences, including tracking of objects in a video stream and their implementation in information and communication systems. In the proposed approach the pretreatment step uses optical flow calculation for each frame video sequence, as well as low-level features (such as a representation of each pixel in the color space YIU). For moving objects optical flow is more important than for a stationary background and allows you to find the foreground objects in video sequences and adjust the weighting function in determining the histogram similar to the adjacent frames, taking into account the motion of objects.

    Keywords: computer vision, tracker, tracking of object, optical flow, motion tracking

  • The algorithm of Image reconstruction based on analysis of local binary patterns

    The paper presents a method of detecting distortions in the archival photo documents by texture analysis based on local binary patternss. The proposed approach consists of the following stages: pre-treatment and detection of scratches. Pre-treatment is used to reduce the effects of noise and small defects in the image. To recognize the class of defects using a support vector machine. The effectiveness of the new approach on several examples in the detection of defects.

    Keywords: digital image processing, detection of defects, archival photographs, local binary patterns

  • Hybrid reverberation algorithm

    The technique of space-time processing of acoustic signals with the use a convolution algorithm the purpose of application of which is the spatial positioning of the virtual soun sourse (auralization) is com=nsidered in this article. Also the reverberation chatacteristics of a modeled acoustic environment are take into consideration.

    Keywords: auralization, HRTF, artificial reverb, room simulation, convolution algorithm, impulse response convolution, impulse response synthesis, dynamic convolution, complex filtering

  • Improving the accuracy of extrinsic camera parameters calibration

    The model of the ideal video camera is described, the form of the intrinsic and extrinsic camera parameters is showed. The relations between coordinates of a point in the world coordinate system with coordinates of this point on the image plane are given. The problem of finding extrinsic camera parameters from corresponded world and image points is posed. The error of found extrinsic parameters is estimated by simulation for several configurations of calibration objects consisting of a variable number of points on different distances from the camera and with different angles between them. On the basis of simulation results recommendations are given for the choice of the calibration object in order to improve the accuracy of the extrinsic camera parameters. The best results may be obtained with a configuration consisting of points that have a large angular distance between them and are posed on different distance from camera.

    Keywords: camera calibration, extrinsic camera parameters, position and orientation estimation, calibration object

  • Development simulator of wireless sensor network

    "This research focuses on the development of wireless sensor network simulator. The simulator is designed using multiagent model approach. For the software implementation the multi-agent simulation library MASON and the graph modeling, analysis and visualization library JUNG are used. The experimental research of simulator directed at the efficiency and precision estimation were carried out. The experiments were performed on networks of various sizes. The latest wireless technology and progress in chip manufacturing in the past few years allowed to move to the practical development and implementation of a new class of distributed communication systems - wireless sensor networks (WSN). The aim of this work is the creation of a wireless sensor network simulator, which makes it possible to simulate its operation in different modes, including using various routing protocols. This simulator is considered as the basis tool for analysis and optimization of wireless sensor networks. One of the objectives of the developed simulator is to analyze the impact of different routing protocols on the separate/overload nodes, involved in retransmission packets, sourced from other network nodes. The need to develop a simulator is due to the fact that the choice of many technical solutions arising in the design of information systems with the WSN can not be only based on laboratory tests conducted on a small network. Real information systems, such as environmental monitoring system, consist of a large number of nodes, which is impossible to reproduce in the laboratory . Therefore, the task of developing simulator WSN is relevant. Currently, there are several approaches and appropriate tools for simulation of wireless sensor networks. So, for the development of simulator, you can use the package modeling networks ns-2/ns-3 . This package is a general-purpose simulation system, strength of which is the possibility of a realistic simulation of the physical propagation of signals. However, the use of this system for simulation WSN requires writing extensions. Other than that ns--2/ns-3 allows only to simulate network, but can not stimulate the work of software nodes. Simulator TOSSIM is deprived of this deficiency . It allows to simulate the work as separate nodes, and large networks, consisting of hundreds or even thousands of nodes; and gives the developer the ability to analyze and test the code, which is designed for the real hardware. The compiler, included in TOSSIM, replaces the low-level application components that interact with hardware resources of the node with the components interacting with the implementations of these devices in the simulator. With this the simulator executes the same code as the real network nodes. However, the simulator has a relatively low productivity and is not suitable for multiple simulation of large sensor networks, which is essential in the development of tools to optimize WSN. Therefore, along with the use of this simulator , we decided to develop a simpler, but at the same time, more rapid and scalable simulator."

    Keywords: Wireless sensor networks, multi-agent simulation, simulation model, MASON, JUNG

  • Q optimization of mm-wave LC circuits

    Сollector mm-wave load circuit of differential stages, as well as the optimization of Q-factor are considered. Optimization of the form of microstrip line in order to increase quality factor is shown. Differential line shorted at one end, at the resonant frequency in the operating mode of the standing wave. At the shorted end of the line voltage is at minimum level, while the current at the maximum, so losses are mainly due to the series resistance of the microstrip line. On the other side of the line, the current is minimized, and the voltage - maximum, so the parasitic losses associated with shunt conductance between the differential lines. This effect use for reducing line losses and increasing the Q-factor. To this end, at the shorted end of the line is necessary to increase the line width and the gap between them, and at the other end to reduce the width and gap.

    Keywords: resonant circuit, SiGe, mm-wave, BiCMOS, monolithic integrated circuit

  • "Methods of determining the grain boundary diffusion coefficient impurities in metals on the basis of numerical solutions for the Fisher model"

    In the introduction the relevance of the study of diffusion along grain boundaries in metals. The aim of the work was to develop a method for determining the diffusion coefficient of impurity atoms at the grain boundaries in metals based on the numerical solution of the model by Fisher. The methodology laid plotting the ratio of the depth of bulk diffusion and grain boundary diffusion on the ratio of the diffusion coefficients of impurity atoms in them. In the construction of numerical solutions available to simplify the modeling of the physical nature of the process of diffusion along grain boundaries. The technique may be used in experiments with widely varying parameters diffusion annealing. Examples of the application procedure. The estimation of the coefficient of grain-boundary diffusion of copper in polycrystalline nickel. Also calculated the ratio of maximal depth of diffusion of silver in the grain and the grain boundary in the SMC copper.

    Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production

  • On the synthesis of nanocomposite FeNi3/C under IR heating and its application to high-density magnetic recording

    The synthesis of nanocomposite FeNi3/C based on the PAN, FeCl3 · 6H2O and NiCl2 · 6H2O, whereby the first time by the IR heating at 400 ÷ 700 ° C obtained nanocomposite FeNi3/C FeNi3 particle size of 10 to 80 nm are uniformly distributed UM. Using thermodynamic calculations based on the minimization of the Gibbs energy, confirmed the synthesis of nanocomposite FeNi3/C at T=400 ° C reduction of Fe and Ni with H2, produced during the process of carbonization of polyacrylonitrile with infrared heating. Designed as a nano material of the films can be effectively used as a carrier material for a magnetic information recording superdense. Recording density is achieved in such a carrier (85-100) Gb/dyuym2. ​

    Keywords: nanocomposite, polyacrylonitrile, infrared heating, recording information, the magnetic properties, the carbon matrix

  • The basic principles of the producing and erection technology of the chimney liners from polymer composite materials by the method of vertical winding with the growing

    The paper is dedicated to development of modified technology of producing and erection of large fiber-reinforced plastic (FRP) shells. This work gowing with the support of Russian Ministry of science and education. Technology is baced on the method of the vertical wet winding with the growing. The main prospective area of using of this technology, is the reconstruction of the tall chimneys with the erection of inner liner from the FRP shells.  

    Keywords: fiber reiforced plastics, glass reinforced plastics, chimneys, metod of the vertical wet winding with the growing

  • Simulation of the design activity diversification of innovative enterprise

    The main maintenance of a diversification of production as activity of subjects of managing is considered. being shown in purchase of the operating enterprises, the organizations of the new enterprises, redistribution of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.

    Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production

  • Ekzotarii in landscaping Rostov-on-Don

    Container gardening is the most promising method in an urban environment where traditional forms of planting in the ground is not possible. For these areas are encouraged to use mobile gardens of tropical and subtropical plants. Offered a basic assortment of plants for the city of Rostov-on-Don. It includes 58 species. For areas with high insolation recommended Yucca aloifolia L., Nerium oleander L., Butia capitata Becc., Phoenix canariensis Chabaud, Opuntia robusta H.Wendl., Euonymus japonica Thunb., Cycas revoluta Thunb., Pelargonium zonale L'Herit ex Ait, Ficus microcarpa L.f., Lantana camara L.

    Keywords: green building, ekzotary, mobile garden, container plants, tropical and subtropical plants, Rostov-on-Don