Summaries of the Issue
OPTICAL AND OPTICAL ELECTRONIC SYSTEMS. OPTICAL TECHNOLOGIES
OPTICAL TECHNOLOGIES SILVER NANOCLUSTERS INFLUENCE ON FORMATION OF QUANTUM DOTS IN FLUORINE PHOSPHATE GLASSES Kolobkova Elena V, Nikonorov Nikolay V. , Vladimir A. Aseev
Silver nanoclusters influence on formation of PbSe QDs in fluorine phosphate glasses Nа2О-Р2О5-Gа2О3-А1F3-ZnО(Se)-PbF2 has been studied. Absorption spectra of the glasses containing silver nanoclusters and PbSe QDs (at diameter from 3,5 nm up to 13 nm) demonstrated a shift of the first ecxitonic peak position to the longer wavelengths than Ag-free glasses under given heat-treatment conditions. Moreover the absorption coefficients of the glasses containing silver nanoclusters and PbSe QDs are higher than ones for Ag-free glasses.
ANALYSIS OF RAY TRACING THROUGH OPTICAL SYSTEMS WITH METAMATERIAL ELEMENTS Voznesenskaya Anna O., Darya Kabanova
A common expression of the refraction law is proposed. The expression allows performing ray tracing through optical media with both positive and negative refraction index. Results of computer simulation are presented. It is shown that optical systems including elements from metamaterials provide low aberrations.
MATHEMATICAL DESCRIPTION OF OPTICAL SYSTEM FOR RECTANGULAR LIGHT SPOT CREATING IN OBLIQUE BEAM Anatoly Trofimuk
Mathematical description is suggested and optical system is designed creating rectangular light spot in wide oblique beam without tilt of light source and optical system. This description is applicable for using in automated design process and makes it possible to get satisfied illuminance uniformity in light spot.
LAMELLAR LATTICE SPACING AND IRIDESCENCE INTERFERENTIAL MODEL Anton Simakov, Smirnov Alexander Vitalievich, Boris Fedorov, Mikhail Ivanov
The numerical interferential model of the iridescence phenomenon in plagioclases has been developed. Iridescence spectra for group of reference labradorite samples with different iridescence colors have been calculated on the basis of interferential model. Modeling spectra of reference samples correspond to experimental ones within the error of 10-15 %. The possibility of iridescence plagioclases out of a visible range (in ultra-violet and near infrared areas) is proved as a result of modeling. The existence of interferential maxima in near infrared area is experimentally confirmed.
DATA PROCESSING SCHEME MODIFICATION FOR PHASE INTERFEROMETRICAL ACOUSTIC SENSOR Plotnikov Michael Yurievich, Sharkov Ilya A., Ivan G. Deyneka
Results of digital scheme design for high speed recording to micro SD memory card from electronic signals processing unit of interferometrical type fiber-optic acoustic sensor with FPGA and Xilinx ISE software development environment are presented. Experimental results are given, which show working abilities of proposed scheme with data record speed equal to141000 b/s.
SINGLE-PULSE WRITING AND VISUALIZATION OF TYPE II FIBER BRAGG GRATINGS Varzhel Sergey V., Kulikov Andrey Vladimirovich, Viktor V. Zakharov, Vladimir A. Aseev
The article presents the results of single-pulse writing of type II fiber Bragg gratings in birefringent optical fiber with elliptical stress cladding by a single KrF excimer laser pulse. Gratings diffraction efficiency induced by a single pulse exceeds 99.9% with a full-width at half maximum about 1 nm. Images of type II fiber Bragg gratings using differential interference contrast method and bright-field microscopy are obtained.
PHOTONICS AND OPTICAL INFORMATICS
PARTICULARITIES OF FEMTOSECOND SPECTRAL SUPERCONTINUUM GENERATION IN CRYSTAL MEDIA WITH X(2)-NONLINEARITY Nalegaev Sergei S , Bespalov Viktor G, Putilin Sergey E
Results of supercontinuum generation experiments in case of excitation by optical pulses with central wavelength 830 nm, duration 40-50 fs, energy up to 1,0-1,5 mJ are given. Supercontinuum radiation is detected in crystal DKDP and other crystals with X(2)-nonlinearity at range from 400 nm to 1450 nm, as well as up to 2200 nm, where radiation within blue range 400–2200 nm is mainly caused by parametric processes. Obtained radiation is inferior to supercontinuum generators based on micro structured fibers by the width of output spectrum.
INVESTIGATION OF LUMINESCENCE KINETICS IN PbS QUANTUM DOTS Litvin Alexander Petrovich, Parfenov Peter Sergeevich, Ushakova Elena Vladimirovna, Baranov Alexander Vasilievich
The dimensional dependence of the spectral and kinetic parameters of the PbS quantum dots luminescence has been investigated in a wide spectral range (0.8 - 2 microns). Registered lifetimes lie in the range of 0.25 - 2.7 ms, and decrease with the nanocrystal sizes growth. We consider a three-level model with the energy level in the forbidden zone to explain such long luminescence lifetimes. It is shown that the anomalous size dependence of the luminescence lifetimes can be related to the existence of transitions with both decreasing and increasing of energy at room temperature.
COMPENSATION METHOD FOR THE SPECTRAL HETEROGENEITY OF THE RADIATION SOURCE BY ADJUSTING ITS COLOR TEMPERATURE FOR HYPERSPECTRAL APPLICATIONS IN MICROSCOPY Gurov Igor P, Lopatin Alexander I, Melnikov Alexey V
The paper deals with the compensation method for the spectral heterogeneity of the radiation source of a hyperspectral microscope for higher effective dynamic range of detecting video array.
PLANT TISSUE STUDY BY OPTICAL COHERENCE MICROSCOPY Gurov Igor P, Volynsky Maxim Alexandrovich, Zhukova Ekaterina V , Margaryants Nikita B.
The studying possibilities of plant tissues microstructure by optical coherence microscopy with a tunable wavelength (1305 +- 75 nm) are discussed. The images of tomograms (B-scans) and 3D-images of research areas for arboreous aloe (Aloe arborescens), ripsalidopsis (Hatiora gaertneri), zonal pelargonium (Pelargonia zonale) are given. Research results of suberization and the surface layers degradation are analyzed. The spectra of diffuse reflection from healthy, sick and dry tissues of leaves in the range of 900–1700 nm are shown.
ANALYSIS AND SYNTHESIS OF COMPLEX SYSTEMS
ADAPTIVE STABILIZING CONTROLLER OF A SIMPLE STRUCTURE Nikiforov Vladimir O, Gerasimov Dmitriy N
An adaptive stabilizing controller for a linear time invariant multi-input multi-output plant presented in a lower triangular form is proposed. The controller has a simple structure, because it has only one adjustable parameter and one simple adaptation algorithm of integral type. Robust modifications of the controller are also presented, and simulation results are given.
EIGENVECTORS STRUCTURE OF STATE MATRICES IN MULTICHANNEL SYSTEMS AS A DEGENERATION FACTOR Dudarenko Natalya Alexandrovna, Ushakov Anatoly Vladimirovich
The problem of systems degeneration of dynamic multichannel systems due to the eigenvectors structure of their state matrices is considered. The problem is solved in relation to the identification, controllability and quality estimation with the state vector norm.
OPTIMAL SYNTHESIS FOR DYNAMIC SYSTEMS WITH DELAY IN CONTROL Dmitry Muzyka, Peshcherov Ruslan O, Tertychny-Dauri Vladimir Yu.
The problem of the optimal control law formation for nonlinear dynamic systems with time delay in control channel is considered. Necessary optimality condition (Bellman equation) is proved for systems with delay in control channel in accordance with the principle of optimality. Conclusions are supported by numerical simulation in the optimal stabilization task of solid body rotation.
CAPACITIVE POSITION SENSOR FOR PLANAR ELECTRIC DRIVE Balkovoy Alexander P , Tyapkin Mikhail G
Planar electric drive based on planar linear motor found its application in the fast accurate planar (XY) motion tasks. Operation principle of the capacitor position sensor for the planar electric drive as well as methods of the signal processing are presented, developed prototype of the capacitive position sensor integrated into the armature of the planar linear motor is given. Results demonstrate the accuracy and resolution of the sensor.
FAST BOUNDARY ELEMENT METHOD FOR MAGNETOSTATIC PROBLEMS SOLUTION Ilya Stupakov, Mikhail Royak
The article deals with solution of magnetostatic field problems by boundary element method and its accelerating based on fast multipole method. This approach can significantly reduce the computational cost and solve problems with higher degree of freedom. Due to symmetric Galerkin formulation, this method can be used together with the finite element method for solving nonlinear problems of magnetostatics. Numerical experiments results demonstrating the effectiveness of this approach are presented.
TRANSFORMATION PROPERTIES OF n-DIMENSIONAL DIGITAL SIGNALS ON THE BASELINE OF RECTANGULAR HITS Grishentsev Alexey Yu.
The article deals with decomposition properties of n-dimensional digital signals on the baseline of rectangular hits. Linear transformation property realization, the condition of conservation of signal energy during the transition from the spatial to the frequency-spatial representation is shown. The transition to an orthogonal transformation configuration is formulated.
QUERY DISTRIBUTION OPTIMIZATION IN CLUSTER SYSTEM AT A COMBINATION OF ANALYTICAL MODELING AND SIMULATION Golubev Ivan Yu, Bogatyrev Vladimir Anatolievich
Multi-stage procedure of the query distribution optimization in cluster system using a combination of analytical modeling and simulation is proposed. This procedure makes it possible to find the optimal part of the redistributed query flow for different distributions of intervals between incoming requests and time of their service.
RELIABILITY EVALUATION MATHEMATICAL MODEL OF AVIONICS ITEM WITH AN UNLOADED RESERVE Kuznetsova Olga A
Faultness evaluation mathematical model for avionics item with loaded duplication and an additional unloaded reserve is designed. The model takes into account incomplete operation control of devices, and time delay in the engaging of unloaded device. Comparative analysis of structural reservation variants is done.
DRUG INTOXICATION INFLUENCE ON SPEAKERS’ VOICE FEATURES Andrey Raev, Matveev Yuri Nikolaevich, Tatiana Goloshchapova
The paper deals with analysis of speech recordings before and after speakers’ drug-abuse treatment. It is shown that there are no statistically significant dependences in distortions of speaker’s voice features on different groups of drugs and on the drug intoxication degree. The fundamental frequency changes are not regular and do not have general nature. The main reason for the fundamental frequency change is the speaker’s emotional state change, rather than drug addiction treatment. Studying the duration effect of narcotic drugs use on the speakers’ voice showed that for speakers with prolonged use of the heroin group drugs a tendency to decrease the fundamental frequency by about 3% per year was found.
COMPUTER SYSTEMS AND INFORMATION TECHNOLOGIES
COMPUTER SYSTEMS AND INFORMATION TECHNOLOGIES FUZZY MARKOVIAN MODEL BASED TECHNOLOGY FOR ASSESSMENT OF MULTI-AGENT DISTRIBUTED INFORMATION SYSTEMS RELIABILITY STATUS Valery Bogatikov
Assessment technology for multi-agent distributed information systems reliability status based on fuzzy Markovian model, which nodes are represented as integral reliability indexes, has been developed. The index is an assessment of fuzzy equality degree between a current situation, which is described by reliability indexes system, and the situations, which corresponding to network safe functioning domain. The technology provides information and hardware system resources distribution identification for reliability goal achievement and support.
METHOD OF SEMI-AUTOMATIC MORPHOLOGICAL DICTIONARY GENERATION Sergei Lapshin, Lebedev Ilya S
This article provides a method for semi-automatic morphological dictionary generation. Provided method makes it possible to simplify significantly the procedure of new dictionary generation and update and, thus, to increase the precision and recall values of DLP and IPC morphological parsers.
APPLICATION OF NONLINEAR DYNAMICS METHODS FOR JOY EMOTION RECOGNITION IN SPEECH Constantine Sidorov, Natalia Filatova
The article deals with the task of recognizing speech samples, recorded when speakers under test display the emotion of joy, from samples of the same speakers’ speech in a neutral state. Methods of nonlinear dynamics were used to solve the problem. Studies were performed on recordings from the base of Emo-DB (Berlin) and fragments of the Russian bases (Tver). A model housing of emotional speech was formed, consisting of twolevel database (sentences and phonemes), served as the basis for the initial evaluation of developed algorithms performance. Stable signs of nonlinear dynamics were formed - the attractor reconstruction and the recurrence plot. New quantitative signs were proposed for speech patterns classification of the person experiencing the joy emotion, based on estimates of the maximum vectors of the attractor reconstruction for the four quadrants.
EFFICIENCY INCREASING METHOD OF THE EVOLUTIONARY ALGORITHMS BY REINFORCEMENT LEARNING Buzdalova Arina S , Maxim Buzdalov
A scalar optimization method based on evolutionary algorithms controlling by reinforcement learning is proposed. Reinforcement learning is used to choose the most effective fitness function at each generation of the evolutionary algorithm. Experimental results for a model problem H-IFF are given. Comparison of the developed method with other evolutionary optimization methods is performed. According to experimental results, the proposed method increases the effectiveness of evolutionary algorithms.
MATERIALS TECHNOLOGY AND NANOTECHNOLOGIES
INVESTIGATION OF NANOPARTICLES MOVEMENT EFFECT UNDER THE INFLUENCE OF FIELDS AND CHARGES CREATED BY A FOCUSED ELECTRON BEAM Philipp Komissarenko, Andrey Denisyuk
The article deals with investigation of dielectric nanoparticles movement effect observed by electron microscope. In the experiments, 120 nm size polystyrene nanoparticles were moved over a substrate and fixed on the end of a closely placed metallic needle being charged under the electron beam. Interaction mechanisms in the system «particle–needle–substrate» were analyzed. Results of calculation and modeling are in agreement with experimentally observed effects. The observed effect can serve as a basis of a new method for precise movement of nanoparticles.
INHOMOGENEOUS ELECTRONIC SPECTRA BROADENING FOR THE DYE MOLECULES WITHIN NANOPOROUS GLASS Yuri Kolesnikov, Alexander Novikov
An impact of the exciting radiation frequency on the fluorescence spectra parameters of adsorbed molecules has been investigated. Observed effects are interpreted in the belief that electronic spectra of the dye molecules within nanoporous glass undergo an inhomogeneous broadening. In some cases, the found dependences demonstrate a non-monotonic character, that’s why inhomogeneous broadening not always might be described with simple Gaussian function. It has been proved that in present case the inhomogeneous broadening appears due to potential variations of intermolecular interactions between adsorbate and adsorbent. The mentioned variations take place due to variable local curvature of the pore surface and coexistence of certain stable molecule orientations on the surface.
PULSED FIBER LASER APPLICATION FOR SIO2/SI SYSTEM MICROSTRUCTURING Skvortsov Albert Matveevich, Veiko Vadim Pavlovich, Huynh Cong Tu
The effect of SiO2/Si system irradiation by pulsed ytterbium fiber laser PLI-1-50 on the morphology and system structural properties has been investigated. It is shown that during surface irradiation of the monocrystalline silicon wafer covered by a thin layer of thermally grown silicon dioxide (SiO2), there are significant structural changes associated with localization of the silicon strips of slip-lines and grid of slip-lines on the surface formed by the intersection of these strips. Phonon theory of the resulting microstructural topography has been considered.
THERMAL PHYSICS AND THEORETICAL HEAT ENGINEERING
POSSIBILITY INVESTIGATION OF BATTERY HEAT SENSORS APPLICATION IN NONSTATIONARY HEAT MEASUREMENT Sivakov Ivan A.
The article deals with experimental results showing the application possibility of the battery heat sensor (Gerashchenko sensor) in non-stationary heat measurement with the method of parametric identification of the heat transfer model in the sensor.
INFORMATION SECURITY METHODS AND SYSTEMS
MULTIDIMENTIONAL MODEL OF DISCRETIONARY ACCESS TO THE OBJECTS IN VERSION CONTROL SYSTEM Anton Spivak, Andrey Razumovskiy, Igor A. Zikratov
A new model of discretionary access control for file version control systems is suggested. Three-dimensional access control model based on Harrison-Ruzzo-Ullman discretionary model is considered. For management and control tasks solution the base operations of Harrison-Ruzzo-Ullman model are supplemented with new operations taking into account the persons access to object versions.
ECONOMICS AND FINANCES. MANAGEMENT
METHODS FOR ASIAN OPTION PRICING WITH PAYMENTS OF DISCRETE DIVIDENDS OUT OF AVERAGING PERIOD Kosyakov Mikhail S, Maxim Ponomarev, Dmitry V. Ivanov, Shpolyanskiy Yuri Alexandrovich
The article deals with two methods for Asian option pricing with arithmetic averaging and multiple payments of absolute discrete dividends out of averaging period: direct Monte-Carlo simulation and our suggested original method based on Crank-Nicolson finite-difference scheme with analytical Curran approximation as the terminal condition. The comparative analysis shows that the precision provided by the original approach is acceptable for practical problems with the grid settings recommended in the paper for different input parameters. The calculation takes a few milliseconds (or even fractions of ms) on a modern PC against seconds for the Monte-Carlo simulation.
BRIEF REPORTS ON THE TERMINOLOGY ISSUES IN THE FIELD OF MECHATRONICS Shalobaev Evgeniy Vasilievich, Toločka Rimantas T
The publication covers topical issues of terminology in the field of mechatronics in connection with the 25-th anniversary of the term «mechatronics» appearance in Russia, as well as dissemination of the terms recommended by the Committee for standardization and terminology of the International Organization for theory of machines and mechanisms.
ON THE APPLICATION OF RECTIFIED LOGARITHMIC CHARACTERISTICS METHOD IN SMOOTHING ALGORITHMS Loparev Alexei V, Stepanov Oleg A, Yashnikova Olga M
The article deals with summarizing of approximate rectified logarithmic characteristics method for stationary smoothing algorithms.
MOVING TRAIN AS A SOURCE OF ACOUSTIC WAVES PROPAGATING IN THE RAILWAY TRACK Bibikov Sergey V, Alexander Shapar
Based on experimental data, the trundle noise of the «wheel – rail» pair was selected as the dominant source of sound waves for approaching train detector.
COLOR RENDITION SETTING FOR OPTICAL-ELECTRONIC VISION SYSTEMS BY «REFERENCE COLORS» METHOD Gorbunova Elena V., Denis Shitov
The method of color rendition setting for optical-electronic vision systems based on the use of test table is proposed. This method makes it possible to analyze the observed objects color with a given degree of accuracy.
MULTIELEMENT COLOR LIGHT SOURCE Gorbunova Elena V., Oleg Lashmanov, Peretyagin Vladimir Sergeevich
The article deals with development results of an experimental prototype of multielement color light source in the LEDs matrix form for use in optical-electronic systems implementing a color analysis of observed objects.
FEATURES OF MINERALS COLOR ANALYSIS ALGORITHM Gorbunova Elena V., Petukhova D.B.
The article deals with color analysis algorithm structure of mineral objects for detection systems of optical sorters and for optical-electronic complexes for evaluation of solid minerals ore dressability.