TECHNICAL SCIENCES

DOI: 10.12737/2219-0767-2023-16-2-7-14

I.A. Astrakhantseva1, S.P. Bobkov1

Flow hydrodynamics discrete stochastic model
  • 1 Ivanovo State University of Chemical Technology, This email address is being protected from spambots. You need JavaScript enabled to view it.

  • For the mathematical description of hydrodynamic conditions in industrial equipment, idealized models are usually used. Upon receipt, a number of simplifying assumptions are made, which, on the one hand, facilitate the use, and on the other hand, the Appearance of the adequacy of the model. All typical models of flow structures are deterministic and continual. At the same time, it became known that the real situation arises in the process of considering possible factors. This trend leads to the need for a wider application of probabilistic approaches to modeling technological processes and apparatuses using modern digital technologies. This article cancels an attempt to create a hydrodynamic model using probabilistic cellular automata. In the model of occurrence, there is one reason for two flow velocities, a decision on the occurrence of a pressure drop, and the other is due to random walks of microvolumes of a moving medium. The described procedure for creating a model contains the results of its use. In particular, the results of modeling of motion trajectories in rare cases, the phenomena of their general movement and detection in rare zones were found. The article presents the results of a comparison of a discrete stochastic model with the types of a diffusion model, in terms of reflecting the physical essence of current flows, the possibilities of determining parameter models, and ease of use. The decisive aspects of the new model, its advantages and revolutions are shown. Possible areas of application of the obtained model. Under investigation are the results of simulation modeling using the proposed model, which reveal repeated results not only consistent with the classical approaches of hydrodynamics, but allow obtaining new data on the course of the processes under study.
  • Ключевые слова — Discrete modeling, flow hydrodynamics, probabilistic cellular automata.

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  • С. 7-14.

DOI: 10.12737/2219-0767-2023-16-2-14-25

V.G. Gorbunov1, O.L. Bordyuzha1, V.V. Lavlinsky1, V.V. Lavlinsky1

Quality management of the educational process
  • 1 Voronezh State University of Forestry and Technologies named after G.F. Morozov, This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.

  • The article discusses issues related to the quality of the learning process for students and management of the educational process based on digitization of knowledge acquired by students. The article presents an algorithm for adjusting reserves to improve the quality of knowledge of students. A detailed assessment of the quantitative relationship between parameters of the educational process is provided. Special attention is paid to determining strategies for managing the quality of education. Hypotheses put forward in the article are confirmed by experimental data and mathematical calculations. Quality management of the educational process is analyzed in detail using an example. In the example, students are divided into 4 groups based on their risk of losing the quality of the educational process. Based on the analysis of identified risk areas, conclusions are drawn and recommendations are given for choosing management strategies to improve the quality of the learning process for each group of students. With correctly chosen management interventions in the educational process, its efficiency is significantly increased, and accordingly, the quality and level of knowledge of students are substantially improved. Thus, the article presents a methodology for managing the educational process that defines the goals, tasks, and stages of management, provides algorithms for adjusting learning reserves, and choosing strategies for managing the quality of the educational process. The application of this approach in practice allows for a significant improvement in the efficiency of student learning.
  • Ключевые слова — Methodology, efficiency, analysis, educational process, algorithm, management strategies.

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  • С. 14-25.

DOI: 10.12737/2219-0767-2023-16-2-26-33

I.Z. Mustaev1, N.A. Muftahova1, V.Yu. Ivanov2

Estimation of the technological potential of parts
  • 1 Ufa University of Science and Technology, This email address is being protected from spambots. You need JavaScript enabled to view it.

    2 Ufa branch of LLC "ODK-Engineering", This email address is being protected from spambots. You need JavaScript enabled to view it.

  • The article describes a methodology for assessing the technological potential of parts, based on the sociophysical theory of potentials and dimensional analysis of the technological process. The technological potential of a part acts as a system characteristic of a complex technical system. The program A'PROPOS was chosen as a tool for calculating the technological potential. A hypothesis has been put forward that the technological potential of the part is associated with the complexity of the technological process of manufacturing this part. It is possible to evaluate it using dimensional analysis using CAD tools. Methods and materials. The emergence and creation of fundamentally new technologies is considered a historical process of development of the designed technical system, in this case, the DSE. The technological potential of the part is formed as the technological process is implemented. The value and structure of the potential are determined and consistent with the properties of the designed part. Based on the results of the analysis of the technological process of manufacturing a part, the construction of a sketch of a part in A'PROPOS., the technological potential is calculated using a mathematical model. The potential is calculated on the basis of the initial data of the enterprise for the object of study. Result. Based on the constructed model, the technological process is optimized. The result is a new machining plan containing the compositions and accuracy of the surfaces machined in the stages and the minimum allowance. Based on the model with variations of dimensional relationships, the dimensional structure is improved to expand the tolerance fields with guaranteed maintenance of technological parameters. Based on this, the deviation in the recommended labor intensity is calculated compared to the real one. Next, the accumulated technological potential of the part was calculated. Conclusions. The system makes it possible to iteratively perform technological calculations, as well as integration with CAD systems in the enterprise. When calculating the technological potential, instead of using the initial data of the enterprise, it is interpreted by the adequacy of the model.
  • Ключевые слова — Modeling, complex systems, life cycle, technological potential, computer-aided design systems.

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    [23] Kozma, D. System of Syste Lifecycle Management - A New Concept Based on Proces Engineering Methodologies / D. Kozma, P. Varga // Applied Sciences. – 2021. – T. 11. – C. 3386. - DOI: 10.3390/app11083386.

    [24] Muftakhova, N.A. Product potential as a method of mathematical modeling of a life cycle management system / N.A. Muftakhova, M.R. Nafikov // PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. – 2022. - C. 122510W. – DOI: 10.1117/12.2631225.

    [25] Ramler, R. Application lifecycle management as infrastructure for software process improvement and evolution: Experience and insights from industry / R. Ramler // Proceedings Conference on Software Engineering and Advanced Applications. – 2011. - Pp. 286–293.

  • С. 26-33.

DOI: 10.12737/2219-0767-2023-16-2-34-47

S.A. Sazonova1, A.V. Kochegarov1, N.V. Akamsina1

Modeling of the occurrence of risks under hazardous working conditions for construction organizations
  • 1 Federal State Budgetary Educational Institution of Higher Education «Voronezh State Technical University», This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.

  • The working conditions characterized by the presence of harmful and dangerous factors of the production environment, as well as the functional state of the organism of builders of various professions are considered. The selected levels of harmful and dangerous factors of the labor process in the warm and cold periods of the year and physiological indicators characterizing the dynamics of changes in the functional state of the body of builders are investigated. The following tasks were solved in the work: the hygienic features of the working conditions of construction works were determined and the leading harmful and dangerous production factors were identified; the quantitative and qualitative characteristics of harmful factors and the causes of their formation are studied; the occupational characteristics of the labor of construction workers with an assessment of the severity and intensity of the labor process are given. The article notes that the whole complex of harmful production factors affects the functional state and working capacity of builders of various professions. The modeling of the risks of hazardous working conditions of builders, as well as the determination of the risk of adverse events at the workplace, was carried out. The assessment of occupational risks in the program “Labor Protection" is given. Based on the conducted research, measures have been developed to create safe working conditions, as well as to improve the efficiency and maintain the health of builders.
  • Ключевые слова — Modeling, production risks, working conditions, construction professions, assessment of professional risks, calculations in the program, a set of measures.

  • [1] GOST R 12.0.010–09. Sistema standartov bezopasnosti truda. Sistemy upravleniya ohranoj truda. Opredelenie opasnostej i ocenka riskov [GOST R 12.0.010–09. The system of occupational safety standards. Occupational health and safety management systems. Hazard identification and risk assessment] – Vved. 2011–01–01. – M.: Standartinform, 2011. – 20 s.

    [2] Matematicheskie modeli proizvodstvennyh riskov i sistem zashchity: monografiya [Mathematical models of industrial risks and protection systems: monograph] / A. V. Goryaga [i dr.]. – Omsk: Izd-vo OmGTU, 2014. – 104 s.

    [3] Professional'nye riski: kak samostoyatel'no i bystro provesti ocenku s ispol'zovaniem avtomatizacii processov [Professional risks: how to independently and quickly conduct an assessment using process automation]. – URL: https://voronezh.1cbit.ru/blog/professionalnye-riski-kak-samostoyatelno-i-bystro-provesti-otsenku/ (data obrascheniya: 10.02.2023).

    [4] Sazonova, S.A. Control of load-bearing structures of technological overpasses / S.A. Sazonova, S.D. Nikolenko, A.A. Osipov // IOP Conference Series: Earth and Environmental Science. - 2022. - V. 988(5). - P. 052012. - DOI: 10.1063/5.0093524.

    [5] Sazonova, S.A. Monitoring concrete road pavement damages / S.A. Sazonova, S.D. Nikolenko, N.V. Akamsina // IOP Conference Series: Earth and Environmental Science. - 2022. - V. 988(5). - P. 052054. - DOI: 10.1088/1755-1315/988/5/052054.

    [6] Assessment of the load-bearing capacity of materials and structures using a finite element model / S.A. Sazonova, T.V. Zyazina, G.I. Smetankina [et al.] // Journal of Physics: Conference Series. – 2022. - V. 2388(1). - P. 012059. - DOI:10.1088/1742-6596/2388/1/012059.

    [7] Ecologically safe construction of monolithic concrete structures / S.D. Nikolenko, V.Y. Manohin, I.V. Mihnevich, M.V. Manohin // IOP Conference Series: Materials Science and Engineering. Construction and Architecture: Theory and Practice of Innovative Development" (CATPID-2020). - 2020. - P. 052068. - DOI: 10.1088/1757-899X/913/5/052068.

    [8] Measures to improve the performance of concrete of rein-forced concrete supports of technological overpasses / S.D. Nikolenko, S.A. Sazonova, N.V. Akamsina [et al.] // IOP Conference Series: Earth and Environmental Science. V International Scientific Conference on Agribusiness, Environmental Engineering and Biotechnologies. - 2021. - P. 052036. - DOI: 10.1088/1755-1315/839/5/052036.

    [9] Evdokimova, S.A. Segmentation of store customers to increase sales using ABC-XYZ-analysis and clustering methods / S.A. Evdokimova // Journal of Physics: Conference Series. - 2021. - P. 012117. - DOI: 10.1088/1742-6596/2032/1/012117.

    [10] Dust control of workplaces from bulk materials / S.A. Sazonova, S.D. Nikolenko, E. Vysotskaya [et al.] // AIP Conference Proceedings. Proceedings of the III International Conference on Advanced Technologies in Materials Science, Mechanical and Automation Engineering. - 2021. - P. 060028. - DOI: 10.1063/5.0072036.

    [11] Control of the formation of defects in brickwork of buildings / S. Sazonova, S. Nikolenko, S. Dorokhin, D. Sysoev // AIP Conference Proceedings. - 2022. - V. 2467- P. 020023. - DOI: 10.1063/5.0093524.

    [12] Weld defects and automation of methods for their detection / S.A. Sazonova, S.D. Nikolenko, A.A. Osipov [et al.] // IOP Conference Series. Krasnoyarsk Science and Technology City Hall. Krasnoyarsk, Russian Federation, 2021. - P. 22078. - DOI: 10.1088/1742-6596/1889/2/022078.

    [13] Evaluation of the effect of fermentation conditions on the functional and technological characteristics of the semifinished meat product / Yu.A. Safonova, A.V. Skrypnikov, E.N. Kovaleva [et al.] // IOP Conference Series: Earth and Environmental Science. International Conference on Production and Processing of Agricultural Raw Materials (P2ARM 2021). - 2022. - P. 012049. - DOI: 10.1088/1755-1315/1052/1/012049.

    [14] Example of integrating e-learning platforms with social network for create effective training courses / O.Y. Lavlinskaya, O.V. Kuripta, F.A. Desyatirikov [et al.] // Proceedings of the 2022 Conference of Russian Young Researchers in Electrical and Electronic Engineering, ElConRus 2022. - 2022. - Pp. 48-52. - DOI: 10.1109/ElConRus54750.2022.9755510.

    [15] Development of an operational quality management application for the production process / Yu.A. Safonova, A.V. Lemeshkin, A.N. Pegina, S.S. Rylev // AIP Conference Proceedings. Krasnoyarsk Scientific Centre of the Siberian Branch of the Russian Academy of Sciences. Melville, New York, United States of America. - 2021. - P. 70031. -DOI: 10.1063/5.0071375.

    [16] Study of the production process of extruded feed and evaluation of the quality of the resulting product using software methods / E.N. Kovaleva, Yu.A. Safonova, A.V. Lemeshkin [et al.] // IOP Conference Series: Earth and Environmental Science. International Conference on Production and Processing of Agricultural Raw Materials (P2ARM 2021). - 2022. - P. 012139. -. DOI: 10.1088/1755-1315/1052/1/012139.

    [17] Novikov, A.I. Grading of Scots pine seeds by the seed coat color: how to optimize the engineering parameters of the mobile optoelectronic device / A.I. Novikov, V.K. Zolnikov, T.P. Novikova // Inventions. - 2021. - V. 6, № 1. - P. 7. - DOI: 10.3390/inventions6010007.

    [18] Methods of assessing the effectiveness of reforestation based on the theory of fuzzy sets / A. Kuzminov, L. Sakharova, M. Stryukov, V.K. Zolnikov // IOP Conference Series: Earth and Environmental Science. "International Forestry Forum "Forest Ecosystems as Global Resource of the Biosphere: Calls, Threats, Solutions". - 2020. - P. 012007. - DOI: 10.1088/1755-1315/595/1/012007.

    [19] Sakharova, L. Methodology for assessing the sustainability of agricultural production, taking into account its economic efficiency / L. Sakharova, M. Stryukov, V.K. Zolnikov // IOP Conference Series: Earth and Environmental Science. International scientific and practical conference "Forest ecosystems as global resource of the biosphere: calls, threats, solutions" (Forestry-2019). - 2019. - P. 012019. - DOI: 10.1088/1755-1315/392/1/012019.

    [20] Belokurov, V.P. Modeling passenger transportation processes using vehicles of various forms of ownership / V.P. Belokurov, S.V. Belokurov, V.K. Zolnikov // Transportation Research Procedia. - 2018. - Pp. 44-49. - DOI: 10.1016/j.trpro.2018.12.041.

    [21] Formation of the predicted training parameters in the form of a discrete information stream / T.E. Smolentseva, V.I. Sumin, V.K. Zolnikov, V.V. Lavlinsky // Journal of Physics: Conference Series. - 2018. - P. 012045. - DOI: 10.1088/1742-6596/973/1/012045.

    [22] Methods of multi-criteria optimization in problems of simulation of trucking industry / S.V. Belokurov, V.P. Belokurov, V.K. Zolnikov, O.N. Cherkasov // Transportation Research Procedia. 12th International Conference "Organization and Traffic Safety Management in Large Cities", SPbOTSIC 2016. - 2017. - Pp. 47-52. - DOI: 10.1016/j.trpro.2017.01.010.

    [23] Kubicka, K. Influence of the thermal insulation type and thickness on the structure mechanical response under fire conditions / K. Kubicka, U. Pawlak, U. Radoń //Applied Sciences (Switzerland). - 2019. - Vol. 9(13). - P. 2606. - DOI: 10.3390/app9132606.

    [24] Modeling evacuation dynamics on stairs by an extended optimal steps model / Y. Zeng, W. Song, F. Huo, G. Vizzari // Simulation Modelling Practice and Theory. - 2018. - Vol. 84. - Pp. 177-189. - DOI: 10.1016/j.simpat.2018.02.001.

    [25] Fire risk assessment for building operation and maintenance based on BIM technology / L. Wang, W. Li, W. Feng, R. Yang // Building and Environment. - 2021. - Vol. 205. - P. 108188. - DOI: 10.1016/j.buildenv.2021.108188.

    [26] Bim and computer vision-based framework for fire emergency evacuation considering local safety performance / H. Deng, Z. Ou, G. Zhang [et al.] // Sensors. - 2021. - Vol. 21(110). - P. 3851. - DOI: 10.3390/s21113851.

    [27] Interactive WebVR visualization for online fire evacuation training / F. Yan, Y. Hu, J. Jia [et al.] // Multimedia Tools and Applications. - 2020. - Vol. 79(41-42). - Pp. 31541-31565. - DOI: 10.1007/s11042-020-08863-0.

    [28] Wang, C. Fire evacuation in metro stations: Modeling research on the effects of two key parameters / C. Wang, Y. Song // Sustainability (Switzerland). - 2020. - Vol. 12(2). - P. 684. - DOI: 10.3390/su12020684.

    [29] Risk assessment model for building fires based on a Bayesian network / X. Shu, J. Yan, J. Hu, [et al.] // Qinghua Daxue Xuebao/Journal of Tsinghua University. - 2020. - Vol. 60(4). - Pp. 321-327. - DOI: 10.16511/j.cnki.qhdxxb.2019.26.036.

    [30] Probabilistic fire risk framework for optimizing construction site layout / R. El Meouche, M. Abunemeh, I. Hijazi [et al.] // Sustainability (Switzerland). - 2020. - Vol. 12(10). - P. 4065. - DOI: 10.3390/SU12104065.

    [31] Suchy, P.T. The influence of the arrangement of passenger cars in indoor car parks on CFD calculations / P.T. Suchy, W. Węgrzyński//Bezpieczenstwo i Technika Pozarnicza. - 2018. - Vol. 52. - № 4. - Pp. 118-139. - DOI: 10.12845/bitp.52.4.2018.8.

    [32] Strength test of the industrial building's load-bearing structures / S.A. Sazonova, S.D. Nikolenko, T.V. Zyazina [et al.] // Journal of Physics: Conference Series. ICMSIT-III 2022: Metrological Support of Innovative Technologies, 2022. - P. 022016. - DOI: 10.1088/1742-6596/2373/2/022016.

    [33] Behavior of dispersion-reinforced concrete under dynamic action / S.D. Nikolenko, S.A. Sazonova, V.F. Asminin [et al.] // Journal of Physics: Conference Series. ICMSIT-III 2022: Metrological Support of Innovative Technologies, 2022. - P. 022006. - DOI: 10.1088/1742-6596/2373/2/022006.

    [34] Condition monitoring of multi-apartment buildings / S. Sazonova, S. Nikolenko, E. Chernikov [et al.] // AIP Conference Proceedings. – 2022. - V. 2647. - P. 030018. - DOI: 10.1063/5.0104699.

    [35] Inspection of project documentation during the construction of an apartment building / S. Sazonova, S. Nikolenko, A. Meshcheryakova [et al.] // AIP Conference Proceedings. – 2022. - V. 2647. - P. 030019. - DOI: 10.1063/5.0104700.

  • С. 34-47.

DOI: 10.12737/2219-0767-2023-16-2-48-61

S.A. Sazonova1, D.V. Sysoev1, O.A. Sokolova1

Simulation-stochastic modeling of the movement of human flows during the evacuation of people from the hospital building
  • 1 Federal State Budgetary Educational Institution of Higher Education «Voronezh State Technical University», This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.

  • General data on fires in the Voronezh region are given. The general statistics on fires in medical institutions are considered. The fire safety assessment was carried out on the example of VGKBSMP No. 10. For this purpose, general information about the object of the study is provided. The analysis of the causes of fires in VGKBSMP No. 10 was carried out. The necessary initial data for calculating the time of evacuation of people from the hospital are given. The rules of evacuation from VGKBSMP No. 10 are presented. The existing life support services and their tasks in case of fire are considered. The peculiarities of evacuation from hospitals in the event of a fire of people with disabilities have been revealed. The regularities of the movement of human flows are considered. The diagrams of the movement of the flow of people at the borders of neighboring sections of evacuation routes are given, on which observers and people observed in the flow are indicated. The movement of the human flow across the border of adjacent sections of the path, as well as the features of the merging and separation of flows, is investigated. Possible options for merging human flows are considered. The simulation-stochastic modeling of the movement of human flows is considered. The results of calculating the time of evacuation of people from VGKBSMP No. 10 are given. The calculations were carried out using the Fogard program.
  • Ключевые слова — Simulation-stochastic modeling, numerical calculations, fire safety, statistics, human traffic, evacuation, hospital building.

  • [1] Holschevnikov, V.V. Evakuaciya i povedenie lyudey pri pozharah [Evacuation and behavior of people in case of fires] / V.V. Holschevnikov, D.A. Samoshin. – M. : Akademiya GPS MChS Rossii, 2009. – 212 s.

    [2] Predtechenskiy, V.M. Proektirovanie zdaniy s uchetom organizacii dvizheniya lyudskih potokov [Design of buildings taking into account the organization of the movement of human flows] / V.M. Predtechenskiy, A.I. Milinskiy. – M. : Stroyizdat, 1979. – 375 s.

    [3] Prikaz MChS Rossii ot 30.06.2009 N 382 "Ob utverzhdenii metodiki opredeleniya raschetnyh velichin pozharnogo riska v zdaniyah, sooruzheniyah i stroeniyah razlichnyh klassov funkcional'noy pozharnoy opasnosti" [On approval of the methodology for determining the calculated values of fire risk in buildings, structures and structures of various classes of functional fire hazard]. – M., 2009. – 66 s.

    [4] Sazonova, S.A. Control of load-bearing structures of technological overpasses / S.A. Sazonova, S.D. Nikolenko, A.A. Osipov // IOP Conference Series: Earth and Environmental Science. - 2022. - V. 988(5). - P. 052012. - DOI: 10.1063/5.0093524.

    [5] Sazonova, S.A. Monitoring concrete road pavement damages / S.A. Sazonova, S.D. Nikolenko, N.V. Akamsina // IOP Conference Series: Earth and Environmental Science. - 2022. - V. 988(5). - P. 052054. - DOI: 10.1088/1755-1315/988/5/052054.

    [6] Assessment of the load-bearing capacity of materials and structures using a finite element model / S.A. Sazonova, T.V. Zyazina, G.I. Smetankina [et al.] // Journal of Physics: Conference Series. – 2022. - V. 2388(1). - P. 012059. - DOI:10.1088/1742-6596/2388/1/012059.

    [7] Ecologically safe construction of monolithic concrete structures / S.D. Nikolenko, V.Y. Manohin, I.V. Mihnevich, M.V. Manohin // IOP Conference Series: Materials Science and Engineering. Construction and Architecture: Theory and Practice of Innovative Development" (CATPID-2020). - 2020. - P. 052068. - DOI: 10.1088/1757-899X/913/5/052068.

    [8] Measures to improve the performance of concrete of rein-forced concrete supports of technological overpasses / S.D. Nikolenko, S.A. Sazonova, N.V. Akamsina [et al.] // IOP Conference Series: Earth and Environmental Science. V International Scientific Conference on Agribusiness, Environmental Engineering and Biotechnologies. - 2021. - P. 052036. - DOI: 10.1088/1755-1315/839/5/052036.

    [9] Evdokimova, S.A. Segmentation of store customers to increase sales using ABC-XYZ-analysis and clustering methods / S.A. Evdokimova // Journal of Physics: Conference Series. - 2021. - P. 012117. - DOI: 10.1088/1742-6596/2032/1/012117.

    [10] Dust control of workplaces from bulk materials / S.A. Sazonova, S.D. Nikolenko, E. Vysotskaya [et al.] // AIP Conference Proceedings. Proceedings of the III International Conference on Advanced Technologies in Materials Science, Mechanical and Automation Engineering. - 2021. - P. 060028. - DOI: 10.1063/5.0072036.

    [11] Control of the formation of defects in brickwork of buildings / S. Sazonova, S. Nikolenko, S. Dorokhin, D. Sysoev // AIP Conference Proceedings. - 2022. - V. 2467- P. 020023. - DOI: 10.1063/5.0093524.

    [12] Weld defects and automation of methods for their detection / S.A. Sazonova, S.D. Nikolenko, A.A. Osipov [et al.] // IOP Conference Series. Krasnoyarsk Science and Technology City Hall. Krasnoyarsk, Russian Federation, 2021. - P. 22078. - DOI: 10.1088/1742-6596/1889/2/022078.

    [13] Evaluation of the effect of fermentation conditions on the functional and technological characteristics of the semifinished meat product / Yu.A. Safonova, A.V. Skrypnikov, E.N. Kovaleva [et al.] // IOP Conference Series: Earth and Environmental Science. International Conference on Production and Processing of Agricultural Raw Materials (P2ARM 2021). - 2022. - P. 012049. - DOI: 10.1088/1755-1315/1052/1/012049.

    [14] Example of integrating e-learning platforms with social network for create effective training courses / O.Y. Lavlinskaya, O.V. Kuripta, F.A. Desyatirikov [et al.] // Proceedings of the 2022 Conference of Russian Young Researchers in Electrical and Electronic Engineering, ElConRus 2022. - 2022. - Pp. 48-52. - DOI: 10.1109/ElConRus54750.2022.9755510.

    [15] Development of an operational quality management application for the production process / Yu.A. Safonova, A.V. Lemeshkin, A.N. Pegina, S.S. Rylev // AIP Conference Proceedings. Krasnoyarsk Scientific Centre of the Siberian Branch of the Russian Academy of Sciences. Melville, New York, United States of America. - 2021. - P. 70031. -DOI: 10.1063/5.0071375.

    [16] Study of the production process of extruded feed and evaluation of the quality of the resulting product using software methods / E.N. Kovaleva, Yu.A. Safonova, A.V. Lemeshkin [et al.] // IOP Conference Series: Earth and Environmental Science. International Conference on Production and Processing of Agricultural Raw Materials (P2ARM 2021). - 2022. - P. 012139. -. DOI: 10.1088/1755-1315/1052/1/012139.

    [17] Novikov, A.I. Grading of Scots pine seeds by the seed coat color: how to optimize the engineering parameters of the mobile optoelectronic device / A.I. Novikov, V.K. Zolnikov, T.P. Novikova // Inventions. - 2021. - V. 6, № 1. - P. 7. - DOI: 10.3390/inventions6010007.

    [18] Methods of assessing the effectiveness of reforestation based on the theory of fuzzy sets / A. Kuzminov, L. Sakharova, M. Stryukov, V.K. Zolnikov // IOP Conference Series: Earth and Environmental Science. "International Forestry Forum "Forest Ecosystems as Global Resource of the Biosphere: Calls, Threats, Solutions". - 2020. - P. 012007. - DOI: 10.1088/1755-1315/595/1/012007.

    [19] Sakharova, L. Methodology for assessing the sustainability of agricultural production, taking into account its economic efficiency / L. Sakharova, M. Stryukov, V.K. Zolnikov // IOP Conference Series: Earth and Environmental Science. International scientific and practical conference "Forest ecosystems as global resource of the biosphere: calls, threats, solutions" (Forestry-2019). - 2019. - P. 012019. - DOI: 10.1088/1755-1315/392/1/012019.

    [20] Belokurov, V.P. Modeling passenger transportation processes using vehicles of various forms of ownership / V.P. Belokurov, S.V. Belokurov, V.K. Zolnikov // Transportation Research Procedia. - 2018. - Pp. 44-49. - DOI: 10.1016/j.trpro.2018.12.041.

    [21] Formation of the predicted training parameters in the form of a discrete information stream / T.E. Smolentseva, V.I. Sumin, V.K. Zolnikov, V.V. Lavlinsky // Journal of Physics: Conference Series. - 2018. - P. 012045. - DOI: 10.1088/1742-6596/973/1/012045.

    [22] Methods of multi-criteria optimization in problems of simulation of trucking industry / S.V. Belokurov, V.P. Belokurov, V.K. Zolnikov, O.N. Cherkasov // Transportation Research Procedia. 12th International Conference "Organization and Traffic Safety Management in Large Cities", SPbOTSIC 2016. - 2017. - Pp. 47-52. - DOI: 10.1016/j.trpro.2017.01.010.

    [23] Kubicka, K. Influence of the thermal insulation type and thickness on the structure mechanical response under fire conditions / K. Kubicka, U. Pawlak, U. Radoń //Applied Sciences (Switzerland). - 2019. - Vol. 9(13). - P. 2606. - DOI: 10.3390/app9132606.

    [24] Modeling evacuation dynamics on stairs by an extended optimal steps model / Y. Zeng, W. Song, F. Huo, G. Vizzari // Simulation Modelling Practice and Theory. - 2018. - Vol. 84. - Pp. 177-189. - DOI: 10.1016/j.simpat.2018.02.001.

    [25] Fire risk assessment for building operation and maintenance based on BIM technology / L. Wang, W. Li, W. Feng, R. Yang // Building and Environment. - 2021. - Vol. 205. - P. 108188. - DOI: 10.1016/j.buildenv.2021.108188.

    [26] Bim and computer vision-based framework for fire emergency evacuation considering local safety performance / H. Deng, Z. Ou, G. Zhang [et al.] // Sensors. - 2021. - Vol. 21(110). - P. 3851. - DOI: 10.3390/s21113851.

    [27] Interactive WebVR visualization for online fire evacuation training / F. Yan, Y. Hu, J. Jia [et al.] // Multimedia Tools and Applications. - 2020. - Vol. 79(41-42). - Pp. 31541-31565. - DOI: 10.1007/s11042-020-08863-0.

    [28] Wang, C. Fire evacuation in metro stations: Modeling research on the effects of two key parameters / C. Wang, Y. Song // Sustainability (Switzerland). - 2020. - Vol. 12(2). - P. 684. - DOI: 10.3390/su12020684.

    [29] Risk assessment model for building fires based on a Bayesian network / X. Shu, J. Yan, J. Hu, [et al.] // Qinghua Daxue Xuebao/Journal of Tsinghua University. - 2020. - Vol. 60(4). - Pp. 321-327. - DOI: 10.16511/j.cnki.qhdxxb.2019.26.036.

    [30] Probabilistic fire risk framework for optimizing construction site layout / R. El Meouche, M. Abunemeh, I. Hijazi [et al.] // Sustainability (Switzerland). - 2020. - Vol. 12(10). - P. 4065. - DOI: 10.3390/SU12104065.

    [31] Suchy, P.T. The influence of the arrangement of passenger cars in indoor car parks on CFD calculations / P.T. Suchy, W. Węgrzyński//Bezpieczenstwo i Technika Pozarnicza. - 2018. - Vol. 52. - № 4. - Pp. 118-139. - DOI: 10.12845/bitp.52.4.2018.8.

    [32] Strength test of the industrial building's load-bearing structures / S.A. Sazonova, S.D. Nikolenko, T.V. Zyazina [et al.] // Journal of Physics: Conference Series. ICMSIT-III 2022: Metrological Support of Innovative Technologies, 2022. - P. 022016. - DOI: 10.1088/1742-6596/2373/2/022016.

    [33] Behavior of dispersion-reinforced concrete under dynamic action / S.D. Nikolenko, S.A. Sazonova, V.F. Asminin [et al.] // Journal of Physics: Conference Series. ICMSIT-III 2022: Metrological Support of Innovative Technologies, 2022. - P. 022006. - DOI: 10.1088/1742-6596/2373/2/022006.

    [34] Condition monitoring of multi-apartment buildings / S. Sazonova, S. Nikolenko, E. Chernikov [et al.] // AIP Conference Proceedings. – 2022. - V. 2647. - P. 030018. - DOI: 10.1063/5.0104699.

    [35] Inspection of project documentation during the construction of an apartment building / S. Sazonova, S. Nikolenko, A. Meshcheryakova [et al.] // AIP Conference Proceedings. – 2022. - V. 2647. - P. 030019. - DOI: 10.1063/5.0104700.

  • С. 48-61.

DOI: 10.12737/2219-0767-2023-16-2-62-74

S.A. Sazonova1, D.V. Sysoev1, O.A. Sokolova1

Mathematical modeling of individual flow movement of people from the maternity hospital building in case of fire
  • 1 Federal State Budgetary Educational Institution of Higher Education «Voronezh State Technical University», This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.

  • Statistical data on the number of fires and people killed in fires in the Russian Federation for the period under review and on the objects of fires are presented. The basics of fire safety of maternity hospitals are considered. The fire safety assessment of the maternity hospital in question was carried out. The data on the fire protection system of the maternity hospital building, on the smoke protection and alarm systems used, on fire-fighting water supply, as well as information on the characteristics of electricity, heating and ventilation are given. Mathematical models used to calculate the evacuation time of people from the maternity hospital building in question are presented. The coordinate scheme of a possible variant of the placement of people who are at a given time on the evacuation routes is considered. The possible density of the flow of evacuating people in the stream within the considered evacuation area is analyzed. The basic calculation formulas used in the design of buildings, taking into account the organization of the movement of human flows, are given. The program used the Fogard complex, which implements an individual flow model developed on the basis of a mathematical model of the individual flow movement of people from the building. The developed evacuation plan of a typical floor was used as the initial data for the calculations. As a result, the main goal of the work was achieved, which is to analyze the movement of human flows and clarify the estimated time needed to rescue evacuees from the maternity hospital building.
  • Ключевые слова — Mathematical modeling, numerical calculations, fire safety, statistics, individual flow of people, evacuation, maternity hospital building.

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DOI: 10.12737/2219-0767-2023-16-2-75-84

E.A. Shipilova1, O.Yu. Lavlinskaya1, D.V. Ignatov1

Model of completing of mobile complex with optimal composition of telecommunication equipment for maintenance and repair of facilities in complex organized systems
  • 1 Military Educational and Scientific Centre of the Air Force N.E. Zhukovsky and Y.A. Gagarin Air Force Academy (Voronezh), This email address is being protected from spambots. You need JavaScript enabled to view it.

  • The issues of optimal organization of the functioning of complex organized systems are within the competence of management subjects who need a problem-oriented tool in the form of models of analysis and synthesis of organization structures. The article considers the approach to the synthesis of the optimal composition of the mobile complex, as a sub-system of a complex organized critical system. The task of completing a mobile complex with the optimal composition of telecommunication equipment for servicing and repairing facilities is formulated. A mathematical model of the problem is proposed. The model is classified as a multi-index open assignment task with invalid assignments. This type of task relates to linear programming transport problems. Methods of bringing the problem to a closed type are considered, equivalent transformations of the assignment matrix are proposed, reducing the problem to a linear model. By entering additional constraints on the model, the effect of invalid assignments is taken into account. To implement a mathematical model, a solution method based on "greedy" algorithms has been proposed. The mathematical model is implemented in the form of a software application that showed the reliability of the results obtained, versatility and high resistance to changes in input data.
  • Ключевые слова — Complex organized systems, assignment problem, multi-index problem, open problem, problem with invalid assignments, optimization problems, transport problem, linear programming, assignment matrix, objective function, Hungarian method, Mack method, "greedy" algorithms.

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PHYSICAL AND MATHEMATICAL SCIENCES

DOI: 10.12737/2219-0767-2023-16-2-85-93

S.A. Ilyin1, D.Y. Kopeikin1, O.V. Lastochkin1, I.E. Polunina1, D.S. Shipitsin1

Routing buses impact analysis on the results on modeling standard digital cell on CMOS 28 nm
  • 1 JC «Molecular Electronics Research Institute», This email address is being protected from spambots. You need JavaScript enabled to view it.

  • In this paper, the influence of routing buses on the timing characteristics (rise/fall time and switching delay) of standard digital elements due to the manifestation of LDE and parasitic effects was studied. A set of specialized test structures to take into account such effects in layers from the first to the fourth metal was proposed. The test structures provide some of the possible cases of the relative position of the routing buses and the layout of the standard cell. Parasitic extraction and characterization of the resulting netlist were performed for each test structure. A set of netlists with parasitic parameters was characterized. It is shown that the average deviation of the temporal characteristics ranged from 1.8 to 3.9% compared to the original structure without routing buses. The largest relative deviation in switching delay is typical for the smallest load capacity, while the relative deviation of cell characteristics depends relatively weakly on the front value. On the basis of the study, recommendations were formulated for modifying the route of extraction of parasitic parameters of standard digital elements, taking into account the routing buses, in order to increase the accuracy of their modeling.
  • Ключевые слова — Digital standard cell library, routing, LDE effect, standard cell parasitic extraction, simulation with parasitic parameters modeling.

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    [9] Ryzhova, D.I. Algoritm mezhventil'nogo resinteza na tranzistornom urovne dlya avtomatizirovannogo proektirovaniya mikroelektronnyh shem [Algorithm of interventional resynthesis at the transistor level for computer-aided design of microelectronic circuits] / D.I. Ryzhova, N.O. Vasil'ev, T.D. Zhukova // Problemy razrabotki perspektivnyh mikro- i nanoelektronnyh sistem. - 2018. -№1. - S. 193-198. - DOI: 10.31114/2078-7707-2018-1-193-198.

    [10] Zheleznikov, D.A. Issledovanie mehanizma razryva i peretrassirovki na etape topologicheskogo sinteza v bazise rekonfiguriruemyh sistem na kristalle [Investigation of the mechanism of rupture and rearrangement at the stage of topological synthesis in the basis of reconfigurable systems on a crystal] / D.A. Zheleznikov, M.A. Zapletina, V.M. Hvatov // Problemy razrabotki perspektivnyh mikro- i nanoelektronnyh sistem. - 2018. - №1. - S. 188-192. - DOI: 10.31114/2078-7707-2018-1-188-192.

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    [16] Issledovanie i analiz izmeneniya harakteristik standartnyh cifrovyh elementov na etape razmescheniya topologii dlya tehnologii KMOP 28 nm [Research and analysis of changes in the characteristics of standard digital elements at the stage of topology placement for CMOS technology 28 nm] / S. A. Il'in, D. Yu. Kopeykin, O. V. Lastochkin [i dr.] // Nanoindustriya. – 2021. – T. 14, № S7(107). – S. 379-381. – DOI 10.22184/1993-8578.2021.14.7s.379.381.

    [17] Nadin, A.S. Metod povysheniya tochnosti shemotehnicheskogo modelirovaniya na osnove ucheta LDE-parametrov dlya tehnologii 28 nm [Method for improving the accuracy of circuit modeling based on taking into account LDE parameters for 28 nm technology] / A.S. Nadin, A.V. Tyurin, D.S. Shipicin // Nanoindustriya. – 2020. – T. 13. – № S4(99). – S. 350-352.

    [18] Medvedeva, O.I. Issledovanie vliyaniya LDE na vybor topologii standartnyh yacheek po tehnologii 28 nm [Investigation of the influence of LDE on the choice of topology of standard cells using 28 nm technology] / O.I. Medvedeva, M.Yu. Semenov, Yu.A. Titov // Problemy razrabotki perspektivnyh mikro- i nanoelektronnyh sistem (MES). - 2021. - № 3. - S. 152-158. - DOI: 10.31114/2078-7707-2021-3-152-158.

    [19] Sravnitel'nyy analiz parametrov standartnyh cifrovyh elementov na primere bibliotek v bazise tehnologii KMOP 28 nm [Comparative analysis of parameters of standard digital elements on the example of libraries in the basis of CMOS technology 28 nm] / S.A. Il'in, D.Yu. Kopeykin, O.V. Lastochkin, D.S. Shipicin // Nanoindustriya. – 2020. – T. 13, № S4(99). – S. 268-271.

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  • С. 85-93.

DOI: 10.12737/2219-0767-2023-16-2-93-100

A.A. Osykin1, A.G. Potupchik1, K.A. Panyshev1

Verilog-A model of the impurity freeze-out in LDD regions at cryogenic temperatures
  • 1 JSC MERI, This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.

  • The article shows the practical implementation of the impurity freeze-out effect in the lightly-doped areas of the drain and source (LDD) in the Verilog-A model of the resistor. This model is based on a theoretical understanding of the freeze-out effect at cryogenic temperatures and data from the TCAD simulation of a MOSFET. The TCAD simulation data were represented by transconductance characteristics of n- and p-channel transistors Id(Vg) in linear mode (Vd=0.1 V) at temperature range from -200 °C to 27 °C for transistors with dimensions 10 um × 10 um. The model is applicable to the use as part of a macromodel of a MOSFET transistor for a CMOS bulk process with a supply voltage of 1.8 V and a minimum channel length of 0.18 um. Since the model is based on a limited set of TCAD modeling data, this version is the basis on which it is possible to build a geometrically scalable model that will be valid over the entire range of drain voltages.
  • Ключевые слова — SPICE, VERILOG-A, CMOS, CRYOGENIC TEMPERATURE, IMPURITY FREEZE-OUT.

  • [1] Metod validacii v kremnii bibliotek standartnyh cifrovyh elementov [Validation method in silicon libraries of standard digital elements] / S.A. Il'in, D.Yu. Kopeykin, O.V. Lastochkin [i dr.] // Problemy razrabotki perspektivnyh mikro- i nanoelektronnyh sistem. – 2020. – № 4. – S. 140-145.

    [2] Opredelenie parametrov SPICE–modeley MOPT pri nizkih temperaturah (do minus 200 °C) [Determination of the parameters of SPICE–models of MOPT at low temperatures (up to minus 200 °C)] / I. A. Haritonov, I. A. Chetverikov, E. Yu. Kuzin, M. R. Ismail–Zade // Trudy NIISI RAN. – 2017. – T.7. – № 2. – S. 41-45.

    [3] Biryukov, V.N. Tablichno-analiticheskaya model' polevogo tranzistora dlya kriogennyh temperatur [Tabular-analytical model of a field-effect transistor for cryogenic temperatures] / V.N. Biryukov, A.M. Pilipenko, I.V. Semernik. – 2012.

    [4] Zhao, H. Modeling of a standard 0.35 um CMOS technology operating from 77 K to 300 K / H. Zhao, X. Liu // Cryogenics. – 2014. – V. 59. – Pp. 49-59.

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    [6] Krasnikov, G.Ya. Obschaya teoriya tehnologii i mikroelektronika: Ch. 2. Voprosy metoda i klassifikacii / G.Ya. Krasnikov, E.S. Gornev, I.V. Matyushkin // Elektronnaya tehnika. Seriya 3: Mikroelektronika. – 2017. – № 4(168). – C. 16-41.

    [7] Beckers, A. Cryogenic MOS Transistor Model / A. Beckers, F. Jazaeri, C. Enz // IEEE Transactions on Electron Devices. – 2018. – V. 65, № 9. – P. 3617-3625.

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  • С. 93-100.

DOI: 10.12737/2219-0767-2023-16-2-100-112

A.M. Solovyov1, N.I. Selvesyuk2, E.Y. Zybin2, V.M. Novikov2, A.S. Pikalov3, A.V. Tolkachev3,4

Real-time optical network in avionics applications
  • 1 JSC «Concern Sozvezdie»

    2 State Research Institute Of Aviation Systems

    3 Voronezh State University

    4 Voronezh State University of Forestry and Technologies

  • This study analyzes existing approaches to building fault-tolerant onboard systems at the hardware and software levels. The main advantages of constructing an Avionics Integrated Vehicle System (AIVS) based on fiber optic components are considered, particularly for deploying a Unified Intelligent System (UIS) that provides intelligent decision-making in case of abnormal situations. Scenarios for countering various abnormal situations at different levels of aircraft equipment complex (AEC) operation are developed, aiming to enhance the fault tolerance of its systems and, consequently, flight safety as a whole. Algorithms for reconfiguring the AIVS in case of abnormal situations, both during flight and on the ground, are devised. Principles for creating a specialized knowledge base for information support (KBIS) based on operational documentation are proposed. Logical programming methods are employed to simplify the formalization of knowledge stored in the KBIS and to facilitate modification and supplementation of the KBIS with new data. Calculation methodologies for AIVS configuration characteristics based on the KBIS are developed. Dynamic synthesis methods for generating new AIVS configurations are designed to address abnormal situations arising during aircraft operation. State space information formalized using logical programming methods is used to solve the synthesis problem. A complete system graph is constructed considering its redundancy, and a search-synthesis for the most suitable AIVS architecture capable of countering failures is performed.
  • Ключевые слова — Distributed information computing network architecture, fully optical network, dynamic reconfiguration, expert system, decision support system, neural controller, WDM network, system-on-a-chip.

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    [22] Identification of key flight conflict nodes based on complex network theory / M. Wu, Z. Wang, X. Gan [et al.] // J. Northwestern Polytech. Univ. – 2020. – Vol. 38. – Pp. 279–287.

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  • С. 100-112.