Home Garden on the windowsill Journal of modern technique and technology. Modern equipment and technologies. Analysis of the thermodynamic efficiency of liquefied natural gas vapor recondensation units

Journal of modern technique and technology. Modern equipment and technologies. Analysis of the thermodynamic efficiency of liquefied natural gas vapor recondensation units

International Scientific Journal "Modern Information Technologies and IT Education" (ISSN 2411-1473) publishes scientific materials on the development of new information technologies, the study of the theoretical foundations of computer science, as well as innovative solutions and standards in the field of training highly professional and scientific personnel for the field of IT and its applications. The journal is designed to integrate the efforts of the academic community and specialists different countries in order to increase the effectiveness of research activities in the field of key convergent cognitive-information technologies of the digital economy and their applications, as well as in the development of innovative approaches and systems for developing the skills of the digital economy.

The name and content of the headings of the journal correspond to the following branches of science:

MATHS
INFORMATICS
PEDAGOGY

The journal is registered with the Center International de l "ISSN, assigned the International Standard Serial Number ISSN 2411-1473.

Transliterated title: Sovremennye informacionnye tehnologii i IT education

International name in English: Modern Information Technologies and IT-Education

The journal is included in the List of peer-reviewed scientific publications in which the main scientific results of dissertations for the degree of candidate of science, for the degree of doctor of science in the following scientific specialties and their respective branches of science should be published:

01.01.02 – Differential Equations, dynamical systems and optimal control (physical and mathematical sciences),

01.01.07 - Computational mathematics (physical and mathematical sciences),

01.01.09 – Discrete Math and mathematical cybernetics (physical and mathematical sciences),

05.13.01 – System Analysis, management and information processing (by industry) (technical sciences),

05.13.01 - System analysis, management and information processing (by industry) (physical and mathematical sciences),

05.13.11 - Mathematics and software computers, complexes and computer networks(Technical science),

05.13.11 - Mathematical and software support for computers, complexes and computer networks (physical and mathematical sciences),

05.13.17 - Theoretical foundations of informatics (technical sciences),

05.13.17 - Theoretical foundations of informatics (physical and mathematical sciences),

05.13.18 - Mathematical modeling numerical methods and program complexes (technical sciences),

13.00.02 - Theory and methods of training and education (by areas and levels of education) (pedagogical sciences),

13.00.08 - Theory and methodology of vocational education (pedagogical sciences).

Founder and Publisher: Foundation for the Promotion of the Development of Internet Media, IT Education, Human Potential "Internet Media League".

Journal registered Federal Service on supervision in the field of communications, information technology and mass communications (Roskomnadzor). Certificate of registration of the product mass media PI No. FS77–66450 dated July 14, 2016.

Published since March 2005.

Publication frequency - 4 times a year.

The subscription index in the Unified Catalog "Press of Russia" is 70454.

The journal is published within the framework of the program of activities of the Federal Educational and Methodological Association in the system of higher education in the enlarged group of specialties and areas of training 02.00.00 "Computer and information sciences".

Journal section policy

Articles

Theoretical Issues of Informatics, Applied Mathematics, Computer Science and Cognitive Information Technologies
Free submission of manuscripts Indexing Peer-reviewed

Parallel and distributed programming, grid technologies, programming on GPUs
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Cognitive information technologies in control systems
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Big data and applications
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Internet of things: standards, communication and information technologies, network applications
Free submission of manuscripts Indexing Peer-reviewed

Smart cities: standards, cognitive information technologies and their applications
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Cognitive Information Technologies in the Digital Economy
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Applied optimization problems
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Digital transformation of transport
Free submission of manuscripts Indexing Peer-reviewed

IT education: methodology, methodological support
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E-learning, information technologies in education
Free submission of manuscripts Indexing Peer-reviewed

Educational resources and best practice IT education
Free submission of manuscripts Indexing Peer-reviewed

Research and development in the field of new information technologies and their applications
Free submission of manuscripts Indexing Peer-reviewed

Scientific software in education and science
Free submission of manuscripts Indexing Peer-reviewed

School education in informatics and information technology
Free submission of manuscripts Indexing Peer-reviewed

Economic informatics
Free submission of manuscripts Indexing Peer-reviewed

Publishing and archiving policy
The main content of the publication is original research articles (Full Articles).
Any author, regardless of place of residence, nationality, etc., who has prepared the manuscript in accordance with the requirements of the editorial board, can publish his work in the journal.
Only original works that have not been published before are accepted for publication.
The manuscript should not be submitted by the author simultaneously to other journals.
The journal's publishing policy aims to detect misconduct, such as possible fabrication of data, falsification, plagiarism, image manipulation, unethical research, biased representations, abuse of authorship, redundant or duplicate publications, undeclared conflicts of interest (see more: ).
The archiving policy is aimed at saving the journal data in the national electronic library eLIBRARY.RU. Journal uses object digital identifier DOI as article ID.

Open access log policy
The international scientific journal "Modern Information Technologies and IT Education" is open access journal. All articles become available to readers immediately after publication. Our open access policy is in line with the definition of the Budapest Open Access Initiative (BOAI). This means that all articles are available for free on the Internet. This allows all users to read, download, copy, distribute, print, search or link to the full texts of these articles, scan them for indexing, transfer them as data to software, or use them for any other lawful purpose without financial, legal or technical barriers other than those that are inseparable from access to the Internet itself.

Indexing
Publications in the journal "Modern Information Technologies and IT Education" are included in the calculation systems for citation indices of authors and journals. The international scientific journal "Modern Information Technologies and IT Education" is included in the Russian Science Citation Index with full-text versions posted on the website of the Scientific electronic library eLIBRARY.RU . Information about the journal "Modern Information Technologies and IT Education" with access to electronic versions of all articles and citation indices is available on the website eLIBRARY.RU, integrated with the RSCI.
The journal is included in the Abstract Journal and Databases of VINITI RAS.
The journal is indexed in systems:

  • RSCI
  • Directory of Open Access Journals (DOAJ)
  • Ulrichsweb Global Serials Directory
  • Google Academy
  • European Reference Index for the Humanities and the Social Sciences (ERIH PLUS)
  • Index Copernicus International
  • VINITI RAS
  • Cyberleninka

publishing house
The international scientific journal "Modern Information Technologies and IT Education" is published on the initiative of the scientific laboratory of open information technologies of the Faculty of Computational Mathematics and Cybernetics of Moscow state university named after M.V. Lomonosov. Laboratory of ICU VMK MSU named after M.V. Lomonosov Moscow State University since 2005 has been the organizer of the annual International Scientific and Practical Conference "Modern Information Technologies and IT Education" - one of the largest scientific forums in Russia dedicated to the development of new information technologies, the study of the theoretical foundations of computer science, as well as innovative solutions and standards in the field of training highly professional and scientific personnel for the field of IT and its applications. The conference greatly contributed to the advancement in the education system of the Faculty of Computational Mathematics and Cybernetics, established in 2002 at the Moscow State University named after M.V. Lomonosov of the new educational direction "Information Technologies", later called "Fundamental Informatics and Information Technologies".
The main objectives of the laboratory of ICU VMK MSU named after M.V. Lomonosov, are: the implementation of research and design work in the field of convergent cognitive-informational, telecommunication and educational technologies aimed at creating a modern scientific support base educational process and improving the level of scientific, technical and professional training of students, the development of new special training courses, educational and practical work and seminars curricula and technologies for the professional training of students in current scientific and technical areas in the development, production and application of information technologies in science, technology, economics.
Since 2016, the publisher of the International Scientific Journal "Modern Information Technologies and IT Education" is the Foundation for the Promotion of Internet Media, IT Education, Human Potential "Internet Media League".

E-mail of the editorial board: [email protected]

About the journal

Call for papers (for authors)

Automation of research and production processes

  1. Shalumov A.S. | Shalumov A.S. | Pershin E.O. | Pershin E.O. | Shalumov M.A. Shalumov M.A.

    Shalumov A.S.

    Pershin E.O.

    Shalumov M.A.

    ASONIKA-M-3D: simulation of arbitrary electronics structures for mechanical and thermal effects

    The issues of automated calculation of mechanical and thermal characteristics of arbitrary designs of radio-electronic means are considered: the interface and preprocessor of the ASONIKA-M-3D subsystem, mechanical and thermal calculations (examples of setting initial data and calculation results), the ASONIKA-M-3D postprocessor.

    Keywords

    radio engineering device; modeling; mechanical characteristics; thermal characteristics; arbitrary designs of electronic means

    ASONIKA-M-3D: simulations of arbitrary electronic structures on mechanical and thermal effects

    The automated calculation questions of mechanical and thermal characteristics for arbitrary designs of radio electronic equipment are considered: interface and preprocessor of the ASONIKA-M-3D subsystem, mechanical and thermal calculations (examples of initial data assignment and calculation results), post-processor ASONIKA -M-3D.

    keywords

    radio device; modeling; mechanical characteristics; thermal characteristics; arbitrary designs of electronic equipment

  2. Soldatov E.S. | Soldatov E.S. | Arkharov I.A. Arkharov I.A.

    Soldatov E.S.

    Arkharov I.A.

    Analysis of the thermodynamic efficiency of liquefied natural gas vapor recondensation units

    The results of a study of the thermodynamic efficiency of liquefied natural gas vapor recondensation units used in cryogenic long-term storage tanks are presented. It is shown that the use of preliminary propane cooling can significantly increase the degree of thermodynamic perfection of the installations, and the maximum efficiency factor is achieved by using a mixed refrigerant in a cycle with a multi-flow heat exchanger, while the compressor and throttle account for the largest electricity costs for the production of entropy.

    Keywords

    liquefied natural gas; vapor recondensation modeling; thermodynamic efficiency; entropy-statistical analysis; material and energy balance equation

    The thermodynamic efficiency analysis of the installations for vapors condensation of the liquefied natural gas

    The research results of the thermodynamic efficiency of installations for the vapors condensation of liquefied natural gas used in cryogenic long-term storage tanks are introduced. It is shown that the use of preliminary propane cooling allows to increase significantly the thermodynamic perfection degree of installations, and the maximum efficiency ratio is achieved by using a mixed cooling agent in a cycle with a multi-flow heat exchanger. In such a case highest power consumption for entropy production fall on the compressor and throttle.

    keywords

    liquefied natural gas; vapor condensation simulation; thermodynamic efficiency; entropy-statistical analysis; equation of material and energy balance

  3. UV microwave lamp

    Ultraviolet Microwave-Lamp

    Mikaeva S.A. | Mikaeva S.A. | Mikaeva A.S. | Mikaeva A.S. | Petrenko Yu.P. Petrenko Yu.P.

    Mikaeva S.A.

    Mikaeva A.S.

    Petrenko Yu.P.

    UV microwave lamp

    The problems of experimental studies of ultraviolet microwave lamps are highlighted. The structure of the lamp is described, the distribution of ultraviolet radiation in the spectrum of electromagnetic radiation is given. The curve of bactericidal action of ultraviolet radiation is given. The results of comparative tests of ultraviolet microwave lamps with different fillings are presented.

    Keywords

    lamp; radiation range; power supply; sulfur lamp; UV lamp; microwave lamp; filling composition

    Ultraviolet Microwave-Lamp

    The experimental studies problems of ultraviolet microwave lamps are covered. The lamp device is described; the distribution of ultraviolet radiation in the spectrum of electromagnetic radiation is given. The bactericidal action curve of ultraviolet radiation is added. The results of comparative tests of ultraviolet ultra-high-frequency lamps with different filling are presented.

    keywords

    lamp; radiation range; power supply; sulfur lamp; UV lamp; microwave lamp; composition of the filling

Modern technologies

Modern technologies

  1. Yamashkin S.A. | Uamashkin S.A. | Ladanova E.O. Ladanova E.O.

    Yamashkin S.A.

    Ladanova E.O.

    Modeling a geographically distributed telecommunications network

    The design of a geographically distributed telecommunications network of a university implemented using MPLS technology is described. Three experiments were carried out, during which the MPLS network successfully coped with the loads. The advantages of the MPLS-approach to building a university network are revealed.

    Keywords

    telecommunication networks; modeling; MPLS network; MPLS technology; LSP path; graph model; routing

    Modeling a geographically distributed telecommunications network

    The projecting of a geographically distributed telecommunications network of a university implemented with application of the MPLS technology is described. Three experiments during which the MPLS network successfully coped with the loads are carried out. The advantages of the MPLS-approach to the construction of the university network are indicated.

    keywords

    telecommunication networks; modeling; MPLS network; MPLS technology; LSP path; graphmodel; routing

  2. Pashkova E.E. | Pashkova E.E. | Kabulova E.G. Kabulova E.G.

    Pashkova E.E.

    Kabulova E.G.

    Profiles of a multi-agent international conflict management system

    Since international conflicts are rather difficult to resolve using classical mathematical tools, it is proposed to use a fundamentally new method for solving problems in this area - multi-agent technologies. The resulting dynamic profiles made it possible to develop a block diagram of the actions of functional components as self-governing agents in the international conflict management system. The practical significance of the work lies in new scientific results in the field of studying complex dynamic systems, which are international conflicts operating in conditions of uncertainty, identifying links and patterns that allow formalizing and organizing support for decision-making by state authorities on international conflicts.

    Keywords

    modeling; forecasting; control; system; international conflict

    Profiles of the multi-agent control system for international conflict

    International conflicts are quite difficult to resolve using the classical mathematical tools. A fundamentally new method for solving problems is proposed to be used in this area - multi-agent technologies. The practical significance of the work consists in new scientific results in the field of the study of complex dynamic systems, which are international conflicts operating in conditions of uncertainty, identifying links and patterns. They allow you to formalize and organize support for decision-making by public authorities on international conflicts.

    keywords

    modeling; forecasting; control; system; international conflict

Systems and control devices

Systems and control devices

    Mikrin E.A. | Mikrin E.A. | Zubov N.E. | Zubov N.E. | Ivanenko S.V. | Ivanenko S.V. | Gubenko S.V. | Gybenko S.V. | Shapkin V.S. | Shapkin V.S. | Daletsky S.V. Daletskiy S.V.

    Mikrin E.A.

    Zubov N.E.

    Ivanenko S.V.

    Gubenko S.V.

    Shapkin V.S.

    Daletsky S.V.

    Influence of hardware limitations on the accuracy of aircraft positioning using satellite radio navigation systems during the transition from code to phase navigation definitions

    The influence of the asymmetry of the interference spectrum caused by inaccurate tuning of the input filter of consumer equipment (AP) of satellite radio navigation systems (SRNS) with frequency division of channels of the GLONASS type on the accuracy of phase navigation determinations of aircraft (AC) coordinates is considered. It is shown that the shift in the estimate of the phase of the signal, due to the asymmetry of the noise spectrum, can reach values ​​that significantly exceed the instrumental error of phase measurements. The effect of replacing the phase of the signal mixture and noise with its digital equivalent in the form of a time interval measured by the number of counting pulses between zero transitions of the mixture and the reference signal on the accuracy of the phase navigation determinations of the aircraft using the AP SRNS is described. It is noted that such processing leads to a shift in the signal phase estimate, which can reach a significant value (this indicates the limitations inherent in digital signal processing methods when switching from code navigation definitions to phase ones in the AP SRNS).

    Keywords

    aircraft; satellite radio navigation system; navigation definitions; signal phase estimation; estimate bias; hindrance; spectrum asymmetry; phase measurement; digital processing; probability density

    Influence of instrumental limitations on the accuracy of aircraft positioning by using satellite radio navigation systems during the transition from code to phase navigation definitions

    The asymmetry influence of the interference spectrum caused by inaccurate tuning of the consumer equipment (CE) input filter of satellite radio navigation systems (SRNS) with frequency division of GLONASS type channels on the phase navigation determination accuracy of the coordinates of the aircraft is considered. It is shown that the shift in the estimate of the signal phase, due to the asymmetry of the interference spectrum, can reach values ​​that significantly exceed the instrumental error of the phase measurements. The effect of replacing the signal mixture and interfering phase with its digital equivalent in the form of the time interval between zero transitions of the mixture and the reference signal, measured by the number of phase transitions on the phase navigation determination accuracy of the aircraft by using the AP SRNS is described. It is marked that such processing leads to a shift in the estimate of the signal phase which can reach a significant amount (this indicates the limitations inherent in digital signal processing methods when transitioning from navigation code definitions to phase definitions in the CE SRNS).

    keywords

    aircraft; satellite radio navigation system; navigation definitions; signal phase evaluation; bias assessment; interference; spectrum asymmetry; phase measurement; digital processing; probability density

  1. Fam Suan Chyong Fam Suan Chyong

    Pham Xuan Truong

    Designing a control system and navigation complex for unmanned aerial vehicles

    The problem of designing a control system and a navigation complex for an unmanned aerial vehicle (UAV) has been studied. A general approach to the synthesis of a control algorithm for a control system when a UAV moves along a route is presented. A selective complex with an intelligent component in the form of an action acceptor P.K. was used as a navigation complex. Anokhin. The analysis of geophysical fields for use in the navigation complex is presented. The solutions obtained are of a universal nature and can be used for UAVs of various classes.

    Keywords

    unmanned aerial vehicle; control system; route correction system; navigation complex; control algorithm; action acceptor; geophysical fields

    Designing a control system and navigation complex of unmanned vehicle

    The task of designing a control system and navigation complex of an unmanned aircraft (UA) is researched. A general approach to the synthesis of the control algorithm for the control system during the UA movement along the route is introduced. As a navigation complex, a selective complex with an intellectual component in the form of an action acceptor of the P.K. Ankhin is used. The analysis of geophysical fields for use in the navigation complex is introduced. The obtained solutions have universal nature and can be used for UA of various classes.

    keywords

    unmanned aircraft; control system; route correction system; navigation complex; control algorithm; action acceptor; geophysical fields

  2. Sargsyan G.A. | Sargsyan G.A. | Sotnikova S.Yu. | Sotnikova S. Yu. | Subbotin S.A. | Subbotin S.A. | Bely A.V. Beliy A.V.

    Sargsyan G.A.

    Sotnikova S.Yu.

    Subbotin S.A.

    Bely A.V.

    Method for ensuring thermal modes of operation of optoelectronic devices

    An algorithm for the method of providing thermal modes of operation of optoelectronic devices - laser gyroscopes for measuring the angular velocity of aircraft, on which they are installed in inertial navigation systems, is proposed. The method solves one of the problems faced by the developers of strapdown inertial navigation systems - ensuring the specified accuracy of operation under high thermal loads, including internal heat generation on the electronic components of printed circuit assemblies of laser gyroscopes. The application of the developed method in the design of electronic navigational devices makes it possible to implement a systematic approach and increase the indicators of reliability and accuracy of work to the required level.

    Keywords

    math modeling; thermal conditions; model of thermal processes; optoelectronic devices; ASONIKA

    The ensuring method of operation thermal modes of optoelectronic devices

    The ensuring method algorithm of operation thermal modes for optoelectronic devices — laser gyroscopes for measuring the angular velocity of aircraft, on which they are placed in inertial navigation systems is proposed. The method solves one of the problems faced by the developers of inertial navigation systems without platform —ensuring the specified accuracy of operation at high thermal loads, including internal heat dissipation on electronic components of laser gyros printed nodes. The application of the developed method in the design of electronic navigation devices allows you to realize a systematic approach and improve the reliability and accuracy indices of the operation to the desired level.

    keywords

    mathematical modeling; thermal conditions; thermal process model; optoelectronic devices; ASONIKA

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The results are published in the journal scientific research domestic and foreign scientists on the problems of modern technologies for managing socio-economic and social systems.

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