Summaries of the Issue
OPTICAL AND OPTICAL ELECTRONIC SYSTEMS. OPTICAL TECHNOLOGIES
MICROLENS ARRAYS WITH “FLOATING” IMAGE EFFECT Balya Vera K, Vera Bulgakova, Denisyuk Igor Yu.
The article deals with simple and effective method for obtaining of high-density surface coverage microlens raster by polymer film thermoforming using the matrix obtained by laser ablation of black rubber by laser graver. Microlens arrays with focal lengths equal to 0.5 mm and 1.2 mm depending on heat treatment duration are received. Microlens rasters provide visible motion effect: with observation point changing, various parts of micro image become visible and as the visible image is enlarged and synthesized from great number of elementary images, the "floating" image effect is observed. Microlens rasters were used for metal master matrix fabrication by electrotyping and subsequent obtaining of polymeric copies on film by hot embossing.
PHOTONICS AND OPTICAL INFORMATICS
FABRICATION AND EXPERIMENTAL STUDY OF METAL NANOANTENNAS FOR PHOTOABSORPTION INCREASING IN ACTIVE LAYER OF THIN- FILM SOLAR BATTERY Mikhail Guzhva, Andrey Denisyuk, Dmitry Permyakov, Pavel Voroshilov, Sofia Frank
The article is dedicated to fabrication and diagnostics development methods of the metallic nanoantennas for thin-film solar batteries application. Fabrication results of the experimental samples consisting of single nanoantennas and two-dimensional arrays of antennas by focused ion-beam milling are presented. The optimal regimes of metal deposition on the semiconductor substrate are selected, which gives the possibility for thin silver films deposition (50-70 nm thick) with low relative surface roughness and grain sizes less than 20 nm. The optimal doses of ion beam irradiation are found for gold and silver films of 50 nm thickeness which lead to correspondence between the dimensions of actual fabricated nanoantenna and its design model with accuracy less than 10 nm. The fabricated nanoantenna clusters are investigated by scanning electron microscopy and atomic force microscopy in semi-contact mode. The unique techniques of scanning near-field optical microscopy are developed using these samples. These techniques give the possibility for direct measurement of local electromagnetic fields at optical frequencies with resolution less than 100 nm. The developed technological regimes of low-roughness thin - film deposition, focused ion beam milling and the methods of fabrication parameters control of the nanoantennas will be used upon fabrication of nanoantenna coatings of this particular design for effectiveness growth of the thin - film solar batteries. The developed fabrication and diagnostics methods make it possible to create other golden and silver structures with high arbitrary resolution (less than 20 nm) for various plasmonics and nanophotonics applications.
ANALYSIS AND SYNTHESIS OF COMPLEX SYSTEMS
TORQUE RIPPLING OF UNIPOLAR MULTI-POLE ELECTRIC MOTOR WITH PERMANENT MAGNETS Epifanov Oleg K , Salova Irina A , Yuri Grechushkin
The article deals with the physical and mathematical model of inactive three-phase unipolar multi-pole permanent magnet motor; equivalent replacement circuit of magnetic circuit and analytical expressions describing spectral structure of residual torque are received. It has been found that the torque is caused by the presence of harmonics of the air gap magnetic conductivity and their interaction with each other. The residual torque is the alternating function, changing from the rotor rotation angle with the dominant frequency in the sixth harmonic of the angular range pole pitch. It was determined and analytically shown that the angular deviation from the predetermined position of the toothed rotors relatively to each other causes the third harmonic of residual torque changing.
SOFTWARE APPLICATION FOR QUADROCOPTER FLIGHT ALONG PREDETERMINED TRAJECTORY Polina Gritsenko, Kremlev Artem Sergeevich, Grygoriy Shmyhelskiy
Software product including visualizer and quadrocopter control program for solving the problem of the flight path formation and tracking is developed. Application is designed to control quadrocopter automatically in places where it is impossible to capture the signal from a satellite (GPS) or to use extra sensors, and a detailed plan of a site or a building is given. It can also be used in various technical systems to solve problems in situations when a human intervention is necessary. Algorithm implementation in respect to the quadrocopter makes it possible to avoid the constant communication of quadrocopter with the station and consequently reduces power consumption and has the advantage of protection from interception. Testing of this software application has been made on Ar Drone quadrocopter manufactured by Parrot Company. As a result of the program testing, quadrocopter repeated the desired trajectory with an error of no more than 5%.
RESEARCH OF PROCESSES IN CONTINUOUS SYSTEMS WITH MULTIPLE COMPLEX CONJUGATED EIGENVALUES OF THEIR STATE MATRIX Akunov Taalaybek A, Dudarenko Natalya Alexandrovna, Polinova Nina Alexandrovna, Ushakov Anatoly Vladimirovich
The steady continuous system is considered which state matrix has spectrum of the multiple complex conjugated eigenvalues and their multiplicity is equal to a half dimension of its state vector. The special attention is paid to the situation when the modulus of an eigenvalue real part is less than unit. It is established that in the case of a small oscillativity of eigenvalues there is a noticeable overshoot in processes on norm of free transient motion on state vector and the more its multiplicity and imaginary part and the less on the modulus is the real component of an eigenvalue the more is the size of the overshoot.
COMPUTER SYSTEMS AND INFORMATION TECHNOLOGIES
AN OPTIMAL STRATEGY CREATION IN THE ITERATED PRISONER'S DILEMMA AGAINST THE FIXED SET OF ENEMIES Mikhail Pinsky, Denis Stepanov
The article deals with a strategy for iterated prisoner's dilemma, which is gaining maximum points against a fixed set of enemies: classic strategies, ZD-strategy and against itself, providing an evolutionary stability in the given set. A finite automata is given corresponding to the strategy, and the way of its design is described by genetic algorithm.
FLOW ROUTING MODEL WITH LOAD BALANCING BY QUEUE LENGTH IN SOFTWAREDEFINED NETWORKS Tatiana Vavenko, Vjacheslav Sterin, Alexander Simonenko
The article deals with the flow model of multipath routing with load balancing by the length of the queue for software-defined networks. Analysis results of the proposed model for a fragment of the Google corporation telecommunication network are shown. Comparison of the routing solution by the proposed model and the routing model with load balancing based on coefficient of maximum link utilization is done.
SELECTION SCREENING OF TRANSDUCERS CONNECTION IN A DUPLICATED COMPUTING COMPLEX Evgeny Alsufyev, Bogatyrev Vladimir Anatolievich
Variants of transducers connection to controlling microprocessor devices in the workflow automation control system are analyzed. Reliability and cost parameters of different engineering solutions are considered. The article focuses on a temperature control system analysis, as the most common workflow control system of different industrial areas.
SYNCHRONIZING OF PHYSIOLOGICAL SIGNALS FOR HUMAN INTELLECTUAL ACTIVITY BY MULTIFUNCTIONAL MEASURING COMPLEX Marusina Maria Ya., Nikolay B. Suvorov, Alexander Kozachenko, Dmitriy Tolkovich
The article deals with development results of multi-measurement system for recording of physiological and information signals describing the psycho-physiological state of a person at the current instant time. The complex gives the possibility to synchronizing and real-time processing of all recorded physiological parameters during the study of the subject creative activity. The scheme and components of multifunctional complex are described. Results of the fixing and processing of physiological signals recorded during intense intellectual activity are given.
LASER AND BIOMEDICAL TECHNOLOGIES
RADIATION INFLUENCE IN THE RANGE OF 0.05 ÷ 2 THZ ON MITOCHONDRIAL MEMBRANE POTENTIAL Tsurkan Maria V, Igor Kudryavtsev, Maria Serebryakova, Yuliya Nesgovorova, Andrei Trulyov, Inga Nazarova, Smolyanskaya Olga A, Peter Nazarov, Alexander Polevshchikov
Application of terahertz (THz) radiation sources is rapidly growing in recent years. It is estimated that it can be used in medical diagnosis of skin diseases and skin cancer. However, the divergent data on the effects of THz radiation put in question the safety of its use. To assess the effects of THz radiation at the cellular level, the mitochondrial membrane potential and the permeability of the cell membrane of certain cells of transplanted crops, and thymocytes and splenocytes of mice were investigated after exposure by flow cytometry. It was shown that the terahertz radiation with 30, 2 and 0.1 mW radiated power and 1 minute exposure have neither significant effect on the change in the functional activity of mitochondria, nor gives integrity on their bilipid outer membranes. Including, no statistically significant changes in the ratio of live and at different stages of apoptotic cells were found.
Results of experimental measurements of the electrocardiogram for different states of patients are illustrated. Results of the phase portraits (attractor) design are given. It is shown that, depending on the condition of the patient (severe, moderate, satisfactory, etc.) the value of the correlation dimension and the phase trajectories are changed.
NONLINEAR DYNAMICAL MODELING FOR INTERACTION PROCESSES OF HUMAN BREATHING AND TACHYCARDIA ON THE BASIS OF GIVEN MEASUREMENTS Lukyanov Gennadiy N, Sergei Polishchouk
The article deals with nonlinear dynamic model on the basis of method algorithm Non-Linear Auto-Regressive Moving Average with Exogenous Inputs , which connects interaction measurements results of the human respiratory and cardiac systems. Application of this model is shown for description of these processes and their interconnection demonstrating how human inhalation and exhalation correlate with cardiac cycle. The model is used for both separate description of breathing and tachycardia processes and their interconnection. This model is suggested for the compressed general description of human organism functioning features and for description of concrete person features. Filtering application of the joint model for breathing and tachycardia according to the given method makes it possible to decompose obtained model to independent initial models.
INFLUENCE ANALYSIS OF LOW INTENSITY TERAHERTZ RADIATION ON LYMPHOCYTES EARLY ACTIVATION MARKERS Tsurkan Maria V, Igor Kudryavtsev, Maria Serebryakova, Andrei Trulyov, Anastasiya Snegova, Smolyanskaya Olga A, Alexander Polevshchikov, Balbekin Nikolay S
There is the evidence of terahertz radiation effect on blood elements in literature. This study is focused on determining the level of cell surface markers for lymphocyte activation when exposed to terahertz broadband in the range of 0,05-1,2 THz. In the course of the study, two antigens - CD38 and CD69 were selected - increase of the expression level of these markers gives the possibility to evaluate the functional state of the cells in culture conditions in vitro. Obtained data indicate that terahertz radiation with power density equal to 9.55, 0.63 and 0.03 mW/cm2 in 1 minute does not alter the functional activity of lymphocytes.
MATERIALS TECHNOLOGY AND NANOTECHNOLOGIES
PHOTO STIMULATED MODIFICATION OF STRUCTURE FOR NANOMETER LAYERS OF POLYMETHINE DYE MOLECULES Anton Starovoytov, Elena Kaliteevskaya, Valentina Krutyakova, Tatyana Razumova
The article deals with mechanisms of changes in the conformational composition and spatial reorientation of organic thin film nanocomponents by laser radiation. Layer restructuring model due to the resonant photo excitation is suggested. Two stereoisomers and two aggregated forms are identified in the layers of polymethine molecules on a glass substrate. Each component can have two spatial orientations, differing in the angles of the optical transition dipole moment. Photo excitation causes irreversible change of layer orientation, and mutual transformation of layer nanocomponents.
EXPERIMENTAL STUDY OF MOLYBDENUM CARBIDE FORMATION IN THE IMPULSE ELECTRIC EROSION DISCHARGE Valery Sysun, Lyudmila Aleshina, Ustinov Anton S. , Alexander Tikhomirov
The article deals with the possibility of molybdenum carbide formation in the impulse electric erosion discharge on the basis of Blumlein modified circuit. Obtained samples of the material were investigated by X-ray diffraction. Analysis of diffraction patterns showed that the film of carbides is formed on the molybdenum surface during the reaction with carbon by electric erosion discharge.
COMPACT NUCLEAR-MAGNETIC SPECTROMETER FOR EXPRESS-CONTROL OF LIQUID MEDIUM Davydov Vadim Vladimirovich, Karseev Anton Yurievich
Design of the handheld nuclear – magnetic spectrometer for the measuring of spontaneous T1 and transverse T2 relaxation times of the liquid medium in low magnetic field B0 = 55 mTl is developed. Julotto method for the measuring of T1 in developed spectrometer design in low magnetic field is implemented for the first time. This method was previously applied only for measurement in strong magnetic field for solid samples in which the ratio of the relaxation times is different from liquid mediums. The nuclear magnetic resonance signal acquisition scheme is developed and realized. This makes it possible to carry out relaxation times measuring for small amount of the liquid medium (10 – 15 gram) when ratio of signal/noise is about 1.5.
POLYMER NANOCOMPOSITES BASED ON POLYAMIDE 12 FILLED WITH NICKEL NANOPARTICLES Shapoval Ekaterina Sergeevna, Zuev Vyacheslav Viktorovich
The article deals with synthesis method of nickel nanoparticles (particle mid-size diameter equal to 20-30 nm) with carbon-coated core shell (1-2 nm depth). The polymer nanocomposites based on polyamide 12 matrix filled with 0.1-1 wt% of nickel particles was synthesized. The nanocomposites were prepared by in situ polymerization. The modulus of elasticity and tensile strength of the polymer nanocomposites are improved by about 15-20%.
KINETICS OF OXIDIZING ANILINE POLYMERIZATION. STATISTICAL ANALYSIS OF POLYANILINE NANOSTRUCTURE GROWTH Aleksander Podshivalov, Zuev Vyacheslav Viktorovich, Sergei Bronnikov
Kinetics of polyaniline polymerization was studied for the first time by direct method including electron microscopy with the following statistical analysis of micro photos of polyaniline granulated nanostructure in different time intervals and analytical description of histograms for polyaniline granules sizes by thermodynamic aggregation model. Dependencies of granules average size and the amount of granules from polymerization time are shown. Three phases of process are stated: formation and growth of primary granules-they are formed and grow during the first three minutes of reaction on the padding; formation of solid polyaniline film – on the third minute granules have grown up to their maximum sizes; formation of new granules on a solid film begins from the forth minute.
TOTAL PHOSPHORUS ESTIMATING IN RIVER LUGA, GULF OF FINLAND, BY LANDSAT 5 (TM) SATELLITE IMAGERY Evgeny Kapralov, Elena Kunaeva, Kustikova M.A., Mikhail Mednik
Phosphorus, flowing via rivers into the Gulf of Finland, is a major source of nutrients, and in some cases the limiting factor for the growth of algae which is known as eutrophication. Remote sensing of total phosphorus by Landsat 5 (TM) data, can help to give a better understanding of the process of eutrophication. The method, originally described and previously applied for Chinese rivers, is later transferred and applied to three different rivers flowing into the Baltic Sea on the territory of Sweden. The results show that by measuring of chlorophyll –a transparence and content by remote sensing model is able to explain 62% of the variance in total phosphorus.
INSTRUMENT-MAKING TECHNIQUE. ORGANIZATION OF PRODUCTION
LASER - ULTRASONIC GENERATOR APPLICATION FOR INTENSE - DEFORMED CONDITION DEFINITION OF PRODUCTS SPECIAL MATERIALS Vladimir Bychenok, Kinzhagulov Igor Yu, Igor Berkutov, Mihail Marusin, Irina Shcherba
The article deals with main methods applicable for definition of intense - deformed condition of products special materials. Experimental researches of speed dependence of elastic waves distribution from tension in various samples are conducted and revealed the advantage of laser - ultrasonic diagnostics method realized by means of volume waves, to nondestructive control of mono axial tension in a metal structures. The specified advantages of laser and ultrasonic diagnostics method and the received research results on samples from hot-rolled sheet steel of 08kp 2 mm thick and AK33CB steel of 20 mm thick while stretching tests showed sensitivity not less than 3,5 m/s.
GENETIC ALGORITHM APPLICATION FOR PARAMETRIC SYNTHESIS OF EXTRUDER DESIGN Nail Mustyukov, Zubkova Tatiana M
The extrusion process is the process of products recycling in the extruder by softening or plasticization and giving them a desired shape when bursting through the die head, section of nozzles corresponds to the configuration of the product. The resulting products after extrusion processing are complex chemical composition and possess a complex of various properties that make up the totality of the product quality and should be taken into account when calculating the technological machines and improving them. This article describes the use of genetic algorithm and methods of expert evaluation at the stage of parametric synthesis of auger pressing mechanism design. In particular, software solution for maximization problem of extruder efficiency by varying the geometrical and structural parameters is given. As a result of this software application it was managed to increase the efficiency of basic construction (3.1%) to 6.8% by adjusting the size of the screw, the conversion designs meet the imposed restrictions. Obtained results prove that software can be used by engineers for the design of new and improvement of existing extrusion technique models.
TECHNOLOGY DEVELOPMENT FOR CREATION OF FUNCTIONAL ELEMENTS ON GYRO UNITS SURFACES Rustem Muhametov, Yulmetova Olga S., Alexander G. Scherbak
Results of technology development for creation of functional elements in form of drawings with given configuration on precise surfaces of gyro units made from various materials are presented. The possibility of laser marking usage as a method to solve the problem of the formation of functional drawings with required shape and contrast is discussed. Modes and features of precise surfaces laser marking for the units made from fragile magnetic materials and chrome-nickel steel are shown.
INFORMATION SECURITY METHODS AND SYSTEMS
IMPROVING ACCURACY OF PART-OF-SPEECH TAGGING IN DLP MORPHOLOGICAL ANALYZER Sergei Lapshin, Lebedev Ilya S
This article provides a method of accuracy improving for part-of-speech tagging in DLP morphological analyzer. Fulfilled experiments prove this fact. This method has an important advantage – no preliminarily formatted texts or other specially prepared data are needed, except for morphological dictionaries.
MULTI-AGENT SYSTEM FOR INFORMATION MANAGEMENT AND ANALYTICAL SUPPORT OF REGIONAL SECURITY "SECURE VIRTUAL REGION"
For decision-making information support and coordination degree enhancement of the regional security subjects a prototype of network-centric multi-agent information and analytical environment "Secure Virtual Region" with unified access point based on web-technologies for management support of regional security has been developed. Distributed information environment software core and components form hierarchical multilayer virtual space of the region which is represented as an integration framework of problem-oriented situational coalition-based multi-agent systems used for risk-sustainable regional development management support.
INFORMATION THREATS REPRESENTATION ON THE BASIS OF OPEN ENVIRONMENT MODEL Vladimir Kuznetsov, Olga Lukinova
The article deals with the reference model of the open environment which treats an information system as a combination of two components: application-oriented and platform which functionality is definitely structured. Three-dimensionality of the model gives the possibility to display in the same terms functionality of such aspects as information system safety. Basic opportunity to structure information threats (attacks) on model components that opens possibilities of formalization of attack development in the environment of an information system, simulation of counteraction of protective mechanisms and threats is shown. Algorithms solutions of the tasks connected to attacks identification are proposed there by means of parameter vectors creation that influence on the safety and generation chains of attacks in an information system. Results received in part 3 of the article can be used for solution of a wide range of tasks, in particular, for an assessment of possibility of attack implementation and efficiency of protective mechanisms.
NEW TECHNOLOGIES IN EDUCATION
CONCEPT OF PROTECTION SYSTEM FOR CHILDREN’S SAFETY ACCESS TO INFORMATION IN EDUCATION INSTITUTES USING RFID-TECHNOLOGY Roman Zharinov, Yulia Trifonova
There are types of information, which dissemination are prohibited or restricted depending on the age group of children under the Russian law. The authors proposed concept of a system that makes it possible to ensure the safety use of information in the organization of multi-user access for different age categories of users by the existing infrastructure of person’s identification. In particular, attention is given to the core modules: information filtering and users authorization. Filtering module provides the ability to detect and restrict access to illegal content on the basis of intelligent search of the root words and using white or black lists. Security policy for the text filtering using DLP-system database is developed. At the same time fundamental changes in the operation scheme of the system are related with a redirection mode of content filtering. Authorization occurs using the existing infrastructure of contactless smart cards enabled with radio frequency identification (for example, smart cards used for going by public transport). The purpose of system development is getting such parameters as implementation costs minimization and also no need in qualified personnel for its maintenance.
OPTIMAL RESERVATION OF AGGREGATED RADIAL CHANNELS Bogatyrev Vladimir Anatolievich, Osipov Andrey V
The article deals with the problem of optimal redundancy for aggregated radial channel in view of the reliability and the frames mean residence time under the constraint of funds for system implementation and restrictions on the minimum number of aggregated lines in the channels, determined on the basis of exchange stationary conditions.
FUNCTIONAL RELIABILITY OF REAL-TIME SYSTEMS Bogatyrev Anatoly Vladimirovich, Bogatyrev Vladimir Anatolievich
The article deals with reliability estimation of the system at the requirement of the critical queries with limited delay, taking into account the readiness of the system when requested and its reliability during waiting and request service.
QUANTIFIED BOOLEAN FUNCTION SATISFIABILITY SOLVING METHODS APPLICATION TO EXTENDED FINITE-STATE MACHINE CREATION BASED ON SCENARIOS AND TEMPORAL PROPERTIES Ulyantsev Vladimir Igorevich, Elena Panchenko
The question of automatic control systems application for design of systems with complex behavior is considered. A method of control state machine design for a given set of scenarios and temporal properties that must be met in the resulting automaton is proposed. The method is based on the reduction to the problem of quantified Boolean function satisfiability. The algorithm of function construction and the basic components of the resulting Boolean formula are described.
GENERAL MODEL OF ROBOTIC SYSTEMS INFORMATION SECURITY Elena Koval, Lebedev Ilya S
The model of information security threats for robotic systems is offered. Its design is based on standard elements: programs, resources and structures.