Abstracts of number Journal Scientific and Technical Of Information Technologies, Mechanics and Optics

2009 , VOLUME 09, NUMBER 3 ( MAY-JUNE )

ISSN 2226-1494 (print), ISSN 2500-0373 (online)

Publications

2024

Editor-in-Chief

Nikiforov
Vladimir O.
D.Sc., Prof.

Partners

Summaries of the Issue

OPTICAL AND OPTICAL ELECTRONIC SYSTEMS. OPTICAL TECHNOLOGIES

INERTIAL DEVICE FOR ANGULAR SPEED MEASURING Valeria Bogatyreva, Alexander Dmitriev

A new inertial device for angular speed measuring based on measuring of centrifugal force influence on sensor in optical-mechanical construction was suggested. Excited light beam displacement is registered by sensitive photo detector position. Output signal value is proportional to angle change between mirrors and is formed by angular rotor speed. Algorithm of data processing from photo detector output is described, and test results for laboratory model are given. This device has a simple structure, is efficient and will find practical application for technological processes, machine building and robotics.

OPTICAL GAIN IN A FIBER FABRY-PEROT INTERFEROMETER AT THE PUMPING OF LOW POWER SINGLE-MODE SEMICONDUCTOR LASER Sofia Bulgakova, Alexander Dmitriev

The structure of fiber nonlinear Mach-Zehnder interferometer with optical path difference from 2 m up to 10.3 km is presented in this paper. We present experimental measuring results of the industrial single-mode semiconductor laser modules with a fiber Bragg gratings (1.32 μm – 1.55 μm) with a bandwidth less than 20 kHz. It has been shown that long (several kilometers) fiber interferometer acts as an active fiber non-linear Fabry-Perot interferometer with an essential nonlinear gain effect connected with Brillouin scattering in a fiber and Fresnel reflection at the butt end of the optical fiber. Nonlinear effects were first observed at a very small, less than 300 μW radiation power of the incoming light.

THE OPTICAL SYSTEM OF LIGHT TUBE VARIABLE TRANSFORMATION Zverev Victor Alexeevich, Irina Suvorova

Analysis of the overall properties was done in the paper and application possibility of two-component optical system with variable parameters and variable increase with overlapped axial points of a subject and image for light tube forming and variable increase ternary system of “collective” type was shown.

FABRICATION OF PLANAR GRADIENT WAVEGUIDES IN PHOTO-THERMO-REFRACTIVE GLASSES Stanislav Kiselyov, Nikonorov Nikolay V. , Ignatiev Alexander I

Gradient-index optical waveguides have been made in photo-thermo-refractive glasses by effusion and ion-exchange within different thermal and time conditions. Refractive-index profiles have been calculated. Previous radiation and thermal treatment effect on waveguide characteristics has been investigated. Keywords: photo-thermo-refractive glass, planar waveguide, ion-exchange, effusion.

PHOTONICS AND OPTICAL INFORMATICS

COMPLEX ENVELOPE OF ARBITRARILY-SHAPED OPTICAL FIELD FOR THE DESCRIPTION OF INTERACTION OF PULSES WITH CONTINUUM SPECTRA AND DIFFERENT CENTRAL FREQUENCIES IN TRANSPARENT NONLINEAR MEDIA Shpolyanskiy Yuri Alexandrovich

The analytical signal formalism is used to derive expression for the optical field complex envelope of continuum spectrum pulses with different central frequencies. It is shown that self- and interaction of such pulses in nonlinear media can be described by the single equation for the envelope of total field provided that the frequency dependence of propagation constant is introduced in the Fourier domain directly instead of the conventional Taylor expansion.

ANALYSIS AND SYNTHESIS OF COMPLEX SYSTEMS

MATHEMATICAL MODELING OF THE DIRECT CURRENT ELECTRIC DRIVE WITH THE ACTIVE RECTIFIER Borisov Pavel, Alexey Sednev

The structure of a power subsystem with the network lowering transformer and the active rectifier, providing a bilateral exchange of energy between a power line and electric machine for low-voltage direct current electric drive is considered. In MATLAB/Simulink package with application of SimPowerSystems appendix, the model of the closed-loop system of the direct current electric drive with the active rectifier on the basis of low-voltage machine PBV-100M is developed. Modeling is executed and its results are analyzed.

DYNAMICS OF THE SHIP COURSE AUTOMATIC MAINTENANCE SYSTEM BASED ON STEERING LINKAGE WITH AC ELECTRONIC MOTOR Nataliya Vatunskaya, Igor Ovchinnikov

Non-linear task of the ship course control dynamics with ac electronic motor in drive of a steering engine is considered. Control law is synthesized and amplification coefficients and reducer gear-ratio are selected.

THERMAL PHYSICS AND THEORETICAL HEAT ENGINEERING

THE DEVICE FOR MEASUREMENTS OF HEAT FLUX FROM THE HEATING ELEMENT SURFACE Vladimir A. Korablev, Dmitry A. Minkin, Anton Sokolov, Alexander V. Sharkov

The device construction for measurements of heat flux from the heating element surface is described. This device allows to measure heat fluxes from 5 W up to 100 W with uncertainty of 10 %.

DYNAMIC CHARACTERISTICS FOR DIFFERENT TYPES OF HEAT FLOW RECEIVERS BASED ON DIFFERENTIAL-DIFFERENCE MODELS OF HEAT TRANSFER Pilipenko Nikolay V.

The numeric-algorithmic method for obtaining the dynamic characteristics of different types of heat flow receivers based on differential-difference models of heat transfer is considered. A method for reducing the transfer function order of the known impact channels on the receiver is given.

MATERIALS TECHNOLOGY AND NANOTECHNOLOGIES

RESEARCH OF A PIEZOELECTRIC SENSOR OF LOCAL INTERACTION OF SCANNING PROBE MICROSCOPE WITH THE PROBE IN THE FORM OF THE MICROPIPETTE Alexander Golubok, Vadim Levichev, Alexander Pinaev, Alexander Stovpyaga

The piezoelectric sensor for scanning probe microscope with a probe in the form of a glass micropipette has been researched. Resonant frequency and Q-quality of the sensor have been measured in air and liquid environments. The spatial resolution has been shown using a test lattice. The conclusion about an opportunity of using of the sensor with a micropipette in the liquid environment with simultaneous activity in semicontact force mode and in a mode of measurement of ionic currents has been made.

COMPUTER SYSTEMS AND INFORMATION TECHNOLOGIES

AUTOMATED ASSESSMENT MODULE OF OPERATOR ACTIVITY TENSION Ahmed Balhareth

The article deals with the operator activity assessment model, taking into consideration the influence of activity tension to operator’s quick-action. The approach is given based on the use of software module (tool), fixing the operator activities tension.

ANALYSIS OF THE COMPUTATION MODEL IMPLIED BY IEC 61499 Dmitry V. Lukichev

The computation model for distributed control systems implied by IEC 61499 standard is briefly described and analyzed. Several significant issues and their workarounds are presented.

TOOLS FOR FORMAL GRAMMAR REUSE AND THEIR APPLICATION FOR CREATING DIALECTS Andrey Breslav

Modern concrete syntax development tools offer three main reuse mechanisms: modules, templates and aspects. The paper examines these mechanisms and completeness of their implementations in existing tools and proposes their extensions and application of extended versions for creating programming language dialects.

ECONOMICS AND FINANCES. MANAGEMENT

THE THEORETICAL BASES OF DEVELOPMENT THE ENTERPRISES SERVICES SPHERE UNDER CONDITIONS OF GLOBALIZATION Tsukanova Olga A

The author analyzed special theoretical and conceptual features of international enterprises under globalization conditions and specified them for service industries in this article. Characteristic features of the modern international enterprise were selected, the terms «divergence – convergence» concerning the service sphere were analyzed, the methodological base of the strategic planning at the international enterprise was formed.

REGIONAL CORRUPTION COUNTERACTION STRATEGY IN RUSSIAN BUSINESS Roman Lugovskoy

Effect of corruption in commerce, creating an obstacle in development of the given line of business in the Russian Federation at different levels is considered. The effective direction of regional strategy formation in the state regulation field is offered.

NEW TECHNOLOGIES IN EDUCATION

LIFE CYCLE OF ELECTRONIC COURSE IN THE UNIVERSITY REMOTE EDUCATION SYSTEM Vladimir N. Vasiliev, Anastasiya Pavlova, Mikhail S. Chezhin

This paper describes the stages of electronic training methodical course life cycle in Learning Management System as well as presents the authorized tools and capabilities of system at every stage.

CREATION TECHNIQUE OF REFERENCE ENTRANCE AND TARGET DATA SETS FOR THE EVALUATION OF TASKS WITH UNSOLVABLE SET OF RIGHT ANSWERS Oleg Vashenkov, Lyamin Andrey Vladimirovich

This article describes the structure of AcademicNT learning management system, the role and functions of virtual laboratories and creation methods of reference sets for better evaluation of virtual experiment results. Research was made for virtual laboratory on informatics, but such approach can be used for any virtual laboratories.

CONSTRUCTION TOOLS OF ADAPTIVE TRAINING DIALOGUES IN ACADEMICNT SYSTEM ON THE BASIS OF CONCEPTUAL MODEL OF THE SUBJECT AREA KNOWLEDGE Elena Berdnikova, Lyamin Andrey Vladimirovich, Alyona Rusak

105

This article describes the design algorithms of adaptive learning dialogues in the distance learning system in order to optimize the process of identifying, specifying and subsequent removal of ignorance areas, as well as considering the possibility of automatic generation of dialogues, based on a conceptual model of subject area knowledge.

ON MANAGEMENT STRATEGY CHOICE OF SPECIALIST’S TRAINING IN ADMINISTRATION SPHERE DOCUMENTATION Lyudmila Fionova

110

This article is about the main properties of adaptive educational system for corporative personnel training. A model of a specialist and that of a student on the basis of the competent approach are offered in the article. The strategy and the algorithm of corporative and individual educational programs forming for personnel training in the sphere of administration documentation are described.