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Blagov Dmitry S., Volvenko Sergey V.

Increase of speed of information transfer in meteor-burst communication systems by use of signals of variable duration

Published in category «Information and Signal Processing»

Estimated advantage in delivery’s time at the fixed probability of delivery in case of use variable data rates in comparison with a constant data rates is given. Dependences of the transferred data’s volume from meteor burst rate for a constant and a variable data rates are presented.

Views: 1538 Comments: 0

Prokoshev Valery G., Rozkhov Maxim M., Shamin Pavel Yu.

Problem of automatic recognition of persons with one reference image

Published in category «Information and Signal Processing»

In this clause a method of human recognition by face image in a “single sample per person” case are considered. The comparison with other similar methods are performed.

Views: 1510 Comments: 0

Blekanov Ivan S., Bondarenko Dmitry S.

The efficiency evaluation of communities search methods of the web-space

Published in category «Information and Signal Processing»

The paper presents the functional principles of operation of a focused Web-crawler, its algorithm of traversals of Web-space, based on a modified version of Kleinberg’s HITS algorithm. Examples and estimations of the new Web-crawler performance over both local (within a domain) and regional (Russian) Web-spaces are given along with a detailed comparison with the standard Web-crawler results

Views: 1081 Comments: 0

Gelgor Alexandr L., Popov Evgeny A.

Multi-component signals envelop optimization on peak-to-average power ratio and correlation conditions

Published in category «Electronics, Antennas, RF-circuits»

Multi-component signals envelop optimization on peak-to-average power ratio and correlation conditions considered. Suggested computational solution utilizing envelop expansion in orthogonal series. Solutions developed for various values of components amount, peak-to-average power ratios and correlations.

Views: 1347 Comments: 0

Ivanov Mikhail V.

The analysis of the reasons of occurrence of intersystem hindrances in the return channel in networks WCDMA and methods of their elimination

Published in category «Electronics, Antennas, RF-circuits»

In article interference sources in the UL channel for networks of cellular communication with code sharing of channels WCDMA are considered. Influence of an interference on quality of service of subscribers is described. The example of increase in an interference owing to an incorrect handovers configuration is resulted. The method of remote search undescribed handovers in network is offered.

Views: 1307 Comments: 0

Ostanin Sergey A., Shayduk Aleksandr M., Semenov Georgy A.

Limitations of spectral methods for detection of short periodic signals

Published in category «Electronics, Antennas, RF-circuits»

Analytical estimations of parameters of signals at which detection of the short periodic signal hidden in noise, a spectral method is possible are resulted. Results of numerical modeling spectral detector of short periodicity in comparison with a window spectral-statistical method of detection of short periodicity are described.

Views: 1369 Comments: 0

Chernoyarov Oleg V., Rozanov Artem E.

Quasi-optimal estimations of time delay and dispersion of random impulse with arbitrary modulation function

Published in category «Electronics, Antennas, RF-circuits»

The synthesis and analysis of the quasi-optimal estimation algorithm of time delay and dispersion of high-frequency random Gaussian impulse with arbitrary modulation function observed on a background of a white noise has been implemented. Functionability of offered measurer and the applicability boundaries of asymptotically exact formulas for its characteristics by statistical modeling methods have been set.

Views: 1181 Comments: 0

Akchurin Adel D., Usupov Kamil M.

«Cyclon» ionosonde controller

Published in category «System Analysis and Control»

T he structure of «Cyclon» ionosonde controller is described, that allows to increase accuracy determination of virtual height (down to 500 m). Controller consists of two boards: a development (kit) board (with placed CPLD) and the additional board designed by us. Two boards allow to create fast a simple and a low cost controller connected to PCI bus with the timescale synchronized to GPS or UTC time and one reference generator to clock on the all frequency-dependent components.

Views: 858 Comments: 0

Matveev Vladimir A.

The research of cone optimality in multicriteria dynamical problem

Published in category «System Analysis and Control»

The linear – quadratic, dynamical problem is considered. Under the Bellman’s dynamical programming the sufficient conditions for existence such decision is presented.

Views: 824 Comments: 0

Tazetdinov Andrey D.

About some characteristics of mathematical model of process of understanding of the information

Published in category «System Analysis and Control»

In the article it is considered and investigated mathematical model of process of understanding of the information, based on the theoretic-plural approach and also mathematical model of such conceptual term, as «concept». Using the presented models it's offering ways of optimization and management of the information for its best understanding.

Views: 986 Comments: 0

Shmarin Igor A.

Features of management of a sustainable development of the enterprise on the basis of information technology

Published in category «System Analysis and Control»

Theoretical and practical bases of realization of a sustainable development at enterprise level are considered. The mechanism of acceptance of system administrative decisions on the basis of application of information technology is stated.

Views: 761 Comments: 0

Pobedash Pavel N.

An analysis of a model of a firm innovation development by operational approach

Published in category «System Analysis and Control»

The estimations of criteria value in a model of a firm innovation development with two economic agents under uncertainty are founded here. The approach allows to estimate the effectiveness of innovation project and to prove the theorems of decision existence in multistage multicriterial optimal control problems.

Views: 1083 Comments: 0

Kuleshov Igor A., Fortinskij Andrey G., Rjabchenko Sergey V.

To a question on classification of structures of management by difficult organizational-technical system

Published in category «System Analysis and Control»

In article classification of control systems by difficult organizational-technical system is given. Classification is spent on a basis: levels of management, principles of management and to management functions.

Views: 1269 Comments: 0

Rostov Nikolay V.

Multiobjective optimization of digital modal controllers based on direct and indirect sounding

Published in category «System Analysis and Control»

The problem of multiobjective parametrical optimization of digital modal controllers are considered. The technique for computer-aided optimization of such controllers by means of sounding are presented. Two examples are given to search Pareto-optimal tuning of parameters, using direct and indirect sounding combined with algebraic synthesis, stability analysis and dynamics simulation in nodes.

Views: 1047 Comments: 0

Salangin Aleksey A.

Formalization of problems of system designing

Published in category «System Analysis and Control»

System engineering concept of technical complexes has been recommended. Matters arising at setting and solvlving systems engineering problems have been considered, different ways to the resolution of these problems have been offered.

Views: 803 Comments: 0

Popov Sergey G.

Method of construction of optimal repository of relational schemas databases

Published in category «Computer Systems and Software»

The paper proposed a method of constructing the subsystem integration of independent databases based repository schemes. The method enables to ensure the optimal repository on the access time and data volume.

Views: 900 Comments: 0

Anikin Igor V., Potapov Alexey S.

Software-based complex for information security risk assessment based on frame-production knowledge representation

Published in category «Computer Systems and Software»

Frame-production expert knowledge representation is suggested for the task of information security risk assessment. This model can formalized fuzzy expert knowledge when frame slots established as linguistic variables. Software-based complex is released as expert system for information security risk assessment.

Views: 927 Comments: 0

Belov Vyacheslav V., Boldyrev Yurii Ya., Romanov Sergey V., Shanina Alexandra S.

Experience of application of mathematical simulation for the soil bases of buildings and constructions

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

Results of pile deposits calculation analysis in difficult geological conditions with taking into account of soil nonlinear behavior are resulted. Calculation of the soil intense-deformed condition in common with the pile basis under springboards of a multipurpose sports complex is shown. Possibility of the decision of the given problem on the basis of the same technologies is shown, as at modeling of work of a separate pile. Importance of the account of mutual influence of two springboards against each other, nonlinear behavior of soils, and also ground waters is shown. Interaction of designs of springboards and a soil file under them is considered.

Views: 1354 Comments: 0

Belov Vyacheslav V., Boldyrev Yurii Ya., Klimshin Dmitry V., Romanov Sergey V.

Modern technologies of mathematical simulation at calculations of wind influence on unique buildings and constructions

Published in category «Actual problems of linguistics»

Results of application of technologies of computing aerodynamics are resulted at calculation of ski jumping hills of a sports complex. Results of modeling of movement of air streams on the scale of all sports complex are presented, aerodynamic factors of wind pressure upon surfaces of constructions are defined, and also the analysis of mutual influence of two close standing high-rise buildings is carried out at calculation of wind influence on constructions.

Views: 1554 Comments: 0

Getman Alexandr N., Kudryavtsev Oleg E.

The estimation for the financial risk of obtaining customs payments below the plan level

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

In the paper, the method of analysis of the financial risk connected with the customs activity is developed. We suggest the estimation algorithm of the financial risk of obtaining customs payments below the plan level which is interpreted as “default risk”. The algorithm is based on the estimation for the cumulative function of the customs payment index.

Views: 862 Comments: 0

Khanova Anna A., Bondareva Irina O.

Scenario approach to the analysis of quality of logistic service of the enterprise with use of imitating model

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

In clause problems of theoretical representation of questions of stability of management are considered by telecommunication systems. The basic problems with reference to modern telecommunication systems are stated.

Views: 1173 Comments: 0

Altynbaev Ravil B., Khibatullin Salavat G.

Accuracy increase of calculations the time of performance of aerial work on distribution of substances and biological objects

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

The scientifically method of time calculation of performance of separate elements of aircraft flights is considered during carrying out of aerial spreading of substances in agriculture taking the wind into account.

Views: 823 Comments: 0

Katasev Alexey S., Gazimova Diana R.

The knowledge representation model in partner expert systems

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

In this paper for effectiveness increase expert systems using in different fieldlds the necessity of new knowledge representation model development is being updated. The logical inference algorithm on this model is been described. On the sample of the natural persons credit capacity task solution the results of her performance evaluation are been described.

Views: 742 Comments: 0

Zinovyev Igor P., Anikin Igor V.

Logical inference model based on fuzzy linear regression

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

A new fuzzy inference approach based on IF-THEN rules and fuzzy linear regression is proposed. Approximation theorem concerning this model is formulated and proofed. An outline of producing fuzzy rules that approximate given table-based function is described. Results of experiments comparing proposed approach with Mamdani-type systems are given. Practical task of prognosis for a disease based on patient’s state that solved by proposed fuzzy system is described.

Views: 971 Comments: 0

Malykhina Galina F., So Irina A.

Creating new color perceptual models of human visual system and their collation

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

The color perception model of human visual system has been proposed. The model is based on experimental psychophysical data. Adequacy of the model has been evaluated by comparing errors of interpolation and approximation with methodical error of data obtained by different authors.

Views: 1147 Comments: 0

Belov Vyacheslav V., Boldyrev Yurii Ya., Klimshin Dmitry V., Shanina Alexandra S.

Modern technologies of mathematical simulation of wide-span metal constructions

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

Some results of calculation of a unique metal dome in diameter of 127 meters are presented, the choice of the best constructive scheme is spent, calculation of difficult central connections in spatial solid-state statement is shown. Existence of some restrictions and the assumptions essentially influencing a course of designing of unique metal designs is revealed. The shown design procedures allow to consider real rigidity of central connections, to analyze behavior of a design in nonlinear statement.

Views: 1406 Comments: 0

S trelets Kseniya I.

Computational solution of the differential equations turbulent diffusion in centrifugal gas flow

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

The work is devoted to the estimation of the efficiency of gas purification from the dust particles in the cyclones, using mathematic models of the motion of solid particles suspended in turbulent flow. Presented model take account the influent of turbulent shear flow to the process of particles sedimentation. The model is based on the model of turbulent diffusion with the limited velocity. There are the preliminary results of estimation the efficiency of particles sedimentation shown.

Views: 801 Comments: 0

Makarov Dmitry A.

Development and application of algorithms of tracking moving object in video observation systems

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

In this paper the necessity of solving the task of following the moving objects in video surveillance systems is being updated. For this purpose are suggested specially developed method and algorithms of defining the outlines’ borders of the object and of following procedure fulfillment. The bundled software, which puts into effect the suggested algorithms, is being described. The results of the analysis of their stability and primary approbation as part of the decision making system support during video monitoring of mobile objects are given.

Views: 684 Comments: 0

K ubaev Vyacheslav A.

Approximate embedding trees in application to search mathematical expression

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

The artcle deals with the approximate pattern searching in ordered labelled trees in application to semantic searching of mathematical expressions. We introduce a new approach to approximate searching in trees which uses set of allowed subtree transformations for target tree. Each allowed transformation is assigned with some weight and the problem is to find the minimal total weight of transformations which allow to match pattern tree with the target.

Views: 772 Comments: 0

Myznikova Bela I., Vasilyeva Tatyana P.

Urban development modelling: deterministic approach

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

In this paper, theoretical results of city growing dynamics are presented based on the Lorenz-type mathematical model. The bifurcation diagram and phase-plane portraits are obtained by means of qualitative analysis and numerical simulatuion of ODE system. The ranges of parameter values are specified where the system demonstrates different dynamic regimes.

Views: 888 Comments: 0

Shevtsov Jury D.

To the question of modelling of elements of systems of greasing engines des as linear electric chains

Published in category «Mathematical Modelling: Methods, algorithms, technologies»

In article questions of application of the theory of pneumo-hydraulic chains for construction of model of the oil filter are considered. The received model will allow to consider features of change of hydraulic parameters of the oil filter in process of its pollution for various operational modes.

Views: 882 Comments: 0

K uznecov Dmitry A.

Automation of forecasting of development, the analysis and estimation of dynamic models of systems

Published in category «Devices, Information-measuring Systems»

Publication is devoted to researching and modeling of dynamic processes in economics, taking into account hierarchy and interference of entire parameters in model. Methods of the systems analysis and the informational approach became the cores simulation and calculation methods. In sort of the big complexity of calculations, calculations for model are made by means of CADAD ADSADSADS Agilent Technologies that allllows to receive numerical solutions for the high-level differential equations.

Views: 1235 Comments: 0

Shalaevsky Oleg N., Malykhina Galina F.

Ontological model for security of information-measuring technologies based on the common criteria

Published in category «Devices, Information-measuring Systems»

Method for formalization of a set of information-measuring security requirements, which is based on the common criteria (CC). The C++ class library was developed for usability testing of the directed model.

Views: 1462 Comments: 0

Zhuravlvleva Lybov M.

Izotoptronics as a new direction of nanotechnologies for creation electronic and optoelectronics devices

Published in category «Electronics, Electronic Equipment Material ProductionTechnologies»

Questions of creation of new materials for manufacturing electronic and optoelectronics devices on the basis of quantum structures are considered. It is offered to alloy by means of a neutron irradiation semiconductors own isotopes. Such isotopic nanotechnology will provide high quality of manufacture of element base VOSP.

Views: 1349 Comments: 0

Strelkova Elena V.

Identification of authors and personal data in electronic library systems

Published in category «Information and Telecommunication Technologies in Education»

The article is dedicated to certain issues of development of electronic library indexes and the national system of authority files within the innovation activity of libraries: the citation rate of authors, Russian Scientific Citation Index and alternative graphics for bibliographic notes; institutional repository for the scope of library resources and memorial objects in the system of regional natural history sources. The issues of arranging full-text sources at the current stage of cyberspace development are set forth.

Views: 1302 Comments: 0

Tazetdinov Andrey D.

About results of application of mathematical model of process of mastering of knowledge in natural language training system

Published in category «Information and Telecommunication Technologies in Education»

The technology and results of checking of efficiency using of mathematical model of mastering of knowledge within the automated training system are described in the article. The statistical estimation of the data received as a result of experiment by means of t-criterion of Stjudenta and criterion of χ2 are resulted.

Views: 1271 Comments: 0

Gerasimova Ilmira B.

Cognitive models of communication processes between of two persons

Published in category «Information and Telecommunication Technologies in Education»

We consider the cognitive model of personality structure as an active element of the scientific educational system, including the intellectual and organizational activities, as well as the influence of emotional factors. A formalized model of communication processes between of two persons, taking into account the communicative, interactive and perceptual aspects of communication, is suggested.

Views: 997 Comments: 0

Kudakov Alexandr V.

Automated system of knowledge control

Published in category «Information and Telecommunication Technologies in Education»

This paper discusses logical and physical architecture of an automated system of knowledge control.

Views: 861 Comments: 0

Vasiliev Alexei E., Shilov Maxim M.

Published in category «Receach Seminar»

Views: 1203 Comments: 0