ISSN 0236-235X (P)
ISSN 2311-2735 (E)

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Higher Attestation Commission (VAK) - К1 quartile
Russian Science Citation Index (RSCI)

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Publication date:
16 June 2024

Articles of journal № 3 at 2017 year.

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21. Algorithms of conceptual modeling and text classification in the tuvan language corpus [№3 за 2017 год]
Authors: Bykova V.V., Ch.M. Mongush
Visitors: 3929
The corpus is an information-linguistic system based on the collection of digitized texts in some language. Nowadays, the corpus of Tuvan language includes official and business documents and Tuvan literary works. Expanding of the Tuvan corpus and deepening of the text processing level are continuening. These works lead to the tasks of a natural language text analysis. The main tasks is classification by precedents and conceptual modeling. In order to solve these problems, the paper uses an algebraic approach, which is called the analysis of formal concepts. The paper proposes algorithms and programs for constructing a conceptual model of literary works collection and solving the problem of a binary classification by precedents. There are methods of reducing computational complexity of the considered algorithms. The paper presents the results of computational experiments, which confirm the effectiveness of the proposed methods for reducing computation complexity. Finally, there are the results of conceptual modeling and binary classification of Tuvan folklore works.

22. A concept of intersubjective response receiving to fuzzy queries to forging computer-aided process planning database [№3 за 2017 год]
Authors: Kanyukov S.I., Konovalov A.V., Muizemnek O.Yu.
Visitors: 7892
A usage experience of Computer-Aided Process Planning (CAPP) software for press and hammer forging is a set of technological parameter values obtained in the technological problem solution process. The values are stored in a rela-tional database. State-of-the-art database managing software generally use “crisp” (as opposing to “fuzzy”) databases and allow only “crisp” queries. We use “crisp database” as a term for a set of records that hold attributes of objects of user interest. The attribute values are represented by text or numeric values that are unambiguously understood by users. Crisp queries suppose enumeration of the attribute values or their boundaries. Therefore, the objects with attributes that partly satisfy the query will be excluded from the query response, so the information will be lost. The fuzzy query theory allows overcoming this information loss problem. The theory of fuzzy query to relational database is based on the fuzzy set theory, which was introduced in 1984 by L. Zadeh and then developed by D. Dubois and H. Prade. The paper considers the developed concept for acquiring intersubjective responses to fuzzy queries to relational database of a forging CAPP. The authors use case study of forging CAPP software database queries to define linguistic variables, terms and their quantitative characterizations. There are membership functions for terms mapped to quantitative characterizations. The paper formulates response construction rules according to relative importance of stated goals. The query requests the technological processes with “good” metal elaboration in final forged part and high utilization of metal from ingot. The proposed concept can be applied in development of mechanism for acquiring responses to fuzzy queries in numerous subject areas.

23. Automatization of software documentation preparation processes for radio-electronics industry devices [№3 за 2017 год]
Authors: A.V. Guryanov, A.V. Shukalov , I.O. Zharinov, M.O. Kostishin, S.A. Leonovets
Visitors: 8774
The paper considers a scientific task of automated preparation of text software documentation using a specialized software. Automation of the process of document preparation is based on data processing from specifications and technical documentation or in the specification. Data processing assumes availability of structured electronic documents prepared in widespread formats according to templates on the basis of industry standards and generation by the automated method of the textual program document. Templates can change at any stage of a project lifecycle. Time expenditure on a template change shall be minimum. Their preview to the user is in the XPS format. The paper provides a list of the developed software documents and the example of data processing to generate a textual document as a graph. The textual document is created based on the state standard 19.101-77. The paper describes a new developed software and tools that are available to a developer in project activities at the instrument-making entity. There is the example of changing a condition of attributes of documents. There is also the algorithm of creating a software document draft in the developed software. The development of a system for automating the registration of technical documentation is cost-effective. The proposed CAD program allows automating the work of software-controlled product developers related to program documentation preparation in an instrument-making enterprise. The software is developed and functions based on a computer with characteristics: Intel (R) Core (TM) i5-6300HQ processor, 4 cores, 2.3 GHz clock speed, 8 Gb RAM, Windows 7.

24. A spatio-temporal model of a material and technical resources traffic network of a radio-electronic facilities group exploitation [№3 за 2017 год]
Authors: S.V. Ignatev, V.B. Tikhonov, A.V. Krasnikov , А.А. Оsipov
Visitors: 7598
Support of complicated radio-electronic facilities (REF) reliability at the established level mostly depends on the operation effectiveness of the current technical exploitation system, with the logistic system (LS) as one of the component part. The main task of the LS is considered to be well-timed supply of material resources (MR), which are necessary for REF proper exploitation. At the same time, the task of fast and proper decision-making when controlling necessary resources supply becomes relevant due to considerable space diversity and remoteness of special-purpose systems with REF as the basic element from storage and maintenance bases. To perform the task it is necessary to know possible (preferable) routs of MR delivery, taking into consideration emergency situations, traffic jams, roadways heavy maintenance, natural disasters and other factors, as well as the choice of optimal route variants according to the desired time value and/or MR delivery cost. Taking into account the above-mentioned facts, this research suggests a spatio-temporal model of logistics system of the group of radio-electronic facilities transportation network exploitation. This model can help to solve the task of selecting preferable MR delivery routes according to established criteria.

25. Automated generation of accounting documents using radioelectronic components database [№3 за 2017 год]
Authors: A.V. Guryanov, P.V. Konovalov, A.V. Shukalov , I.O. Zharinov, S.A. Leonovets
Visitors: 8545
The paper considers a tool software intended to support solving tasks of automation of forming of design documentation containing data on non-ferrous and precious metals in radioelements, which are a part of a product. In order to store information on electroradio products and on the amount of valuable metals in them, there is a specially designed data-base. This base is SQL-compatible and consists of four interconnected tables. The user can place it both on the local computer, and in a network. It contains information that is necessary for calculation works and allows introduction of data on new components. Such function is realized programmatically by the procedure providing manual and automatic addition of information in the database. The manual mode allows bringing elements serially and checks correctness of the entered data. In the automatic mode, information is read out from the XML file, and elements are added by groups, which are marked about the content of valuable metals in them. There goes a check of the added elements. A separate program window shows the resultant project of a product. It keeps all modules (assembly units), which are a part of a product, in a tree form in a hierarchical order. Calculation of content of non-ferrous and precious metals for each metal separately is carried out for the finished project. There also should be design documents “settlement works”. Templates for these documents are in accordance with state standard 2.608-78, 2.601-2006, 2.106-96.

26. Optimization of the problem of conflict detection with dangerous aircraft movement areas to execute on Intel Xeon Phi [№3 за 2017 год]
Author: Rybakov, A.A.
Visitors: 3948
An aircraft generates a wake vortex during its flight. This wake might be dangerous for other air traffic participants, especially in zones with a large number of aircrafts. So, the problem of vortex wake modeling and conflicts detection is very important and in demand. The article considers a vortex wake as a set of dangerous zones in separate traffic segments. A dangerous zone of separate traffic segment is a pencil of spheres – a set of spheres with centers on this segment. Next, we consider the direct mathematical method of detecting an intersection of a line and a pencil of spheres. The line is an immediate trajectory of own aircraft, while a pencil of spheres forms the whole dangerous flight zone. Since the number of traffic segments in a dangerous zone is large enough, it is appropriate to use accelerators in such calculations. The paper considers using Intel Xeon Phi coprocessors for this task and applying some manual sourcecode optimization to enforce execution code vectorization. This approach leads to five-time acceleration of calculation for 107 traffic segments in a dangerous zone.

27. Algorithms of information estimation of compatibility of mobile telecommunication devices and aeronautical radionavigation service stations [№3 за 2017 год]
Authors: O.Yu. Vavulov, A.V. Sukhov, Reshetnikov V.N.
Visitors: 6115
Every member in modern information society requires high-quality, high-speed and widespread mobile tele-communication. The number of such users increases steadily. Therefore, new technologies are being rapidly developed and the newest quality standards (LTE, 4G) are being implemented in this area. At the same time, it is also important to take into account the possibility of electromagnetic compatibility with other telecommunication service devices, especially safety services, for instance, aeronautical radionavigation service. the present article considered The issue of information estimation algorithm development for the state of the technical complex of aeronautical radionavigation service in conditions of destructive interference impact from mobile telecommunication systems. The state of technical complex of aeronautical radionavigation service is defined in the mathematical terms in information space is set by means of the information measure – covering entropy that indicates how real characteristics of the considered systems correspond to their normative values. The suggested method has been applied for estimation of interference impact on the real Russian stations of aeronautical radionavigation service, located in the border region, the example of algorithm application is presented for compatibility estimation of the technical complex of aeronautical radionavigation service with the real mobile telecommunication network. With this coordination algorithm of the technical complex of aeronautical radionavigation service with new frequency assignment for a single base station is suggested. This algorithm is based on calculation of intensity of the aggregate interference field strength produced by all land mobile stations in the area of location of aeronautical radionavigation service station and comparison of the calculated value with the permissible value for specific type of aeronautical radionavigation service station.

28. A software suite to determine the parameters of three-phase alternating current electric arcs burning in a horizontal surface [№3 за 2017 год]
Authors: I.M. Yachikov, E.M. Kostyleva
Visitors: 8693
The metallurgical industry uses a lot of equipment with electrical arcs as the sources of thermal energy. They burn in the direction of the horizontal heat-absorbing surface. Knowing electromagnetic forces affecting the arcs, their location and behavior is significant when designing new furnaces and automating their operation. The literature review shows that many issues connected with electrical arcs of three-phase alternating current are underserved due to technical complexity, high cost and often impossible on industrial or pilot plants. A possible method of research is the development of appropriate mathematical models, their implementation as applied software and further computer modeling. The paper shows mathematical models and developed software, which includes modules for determining the magnetic field intensity, electromagnetic forces, arc and heat flow forms, near three arcs of three-phase alternating current burning in the direction of a horizontal surface. The result of the created software complex is calculation and representation of vector fields including magnetic field strength and average-integral electromagnetic forces, as well as visualization of the average form of electric arc column axis by the period and the heat flux distribution on a horizontal heat-absorbing surface.

29. Development and investigation of linear regression models of capacitance of magnetic nanofluids microlayers [№3 за 2017 год]
Authors: T.F. Morozova, M.S. Demin, A.S. Morozov
Visitors: 6478
The paper presents the results of the analysis and synthesis of linear regression models, which describe experimental studies of electric capacity of a cell with a magnetic nanofluid (MNF) microlayer, when changing the following input parameters (factors): a polarizing voltage (0...20 V), a dispersed phase volume concentration (2,3...14,4 %), an interelectrode distance (100...200 μm), layer temperature (293...368 K). The article shows two- and three-dimensional MNF microlayer capacitance curves depending on input parameters. Dependence analysis showed high electrical capacity at ~340 K within the studied concentration range. While changing a dispersed phase concentration from 2,3 % to 14,4 % and using a polarizing voltage, there is also characteristic electrical capacitance maximum which becomes more evident at higher temperatures. With increasing dispersed phase concentration, the magnitude of polarizing voltage increases when the electrical capacitance maximum is detected. To get a mathematical model linking the cell capacitance with MNF and its parameters (factors), the authors used IBM SPSS Statistics (the software for statistical analysis). The obtained regression models take into account the main factors and the effects of their interaction. The paper shows the analysis of the obtained models and estimates their errors (approximation errors). While evaluating errors, the authors considered the minimum, maximum and average errors. Based on these data they made the conclusions on the model appropriateness. The best approximation of the experimental data is in the model that takes into account the effects of factor interaction.

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