Nuclear, radiation and environmental safety
Article Name | The Determination of Shock Accelerations on a Small Nuclear Power Plant Structural Elements When Falling to the Surface |
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Authors | O.A. Gubeladze1, A.R. Gubeladze2 |
Address | Don State Technical University, Gagarin square 1, Rostov-on-Don, Russia, 344000 1ORCID iD: 0000-0001-6018-4989 WoS Researcher ID: F-6921-201 e-mail: buba26021966@yandex.ru 2ORCID iD: 0000-0002-6966-6391 WoS Researcher ID: F-7215-2017 e-mail: buba26021966@yandex.ru |
Abstract | The article conducts research one of the expansion phase of emergency with an Intercontinental Ballistic Missile, accompanied by an carrier explosion, an ejection of the reentry vehicle from a silo and its subsequent fall. The simulation of the collision of the reentry vehicle with a weakly deformable barrier in the event of fall is performed, the result calculation valuation and experiment are carried out. |
Keywords | intercontinental ballistic missile, silo launcher, head part, weakly deformable barrier, shock acceleration. |
Language | Russian |
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Papers | 7 - 15 |
URL Article | URL Article |
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Article Name | Characteristics of Photon Radiation Fields in Iron for Photon Sources with Energies from 10 to 50 MeV |
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Authors | I.K. Alhagaish1, V.V. Smirnov,V.K. Sakharov |
Address | Institute of Nuclear Physics and Technology (INP&T), National Research Nuclear University «MEPhI», Kashirskoye shosse, 31, Moscow, Russia 115409 1ORCID iD: 0000-0003-0099-153X Wos Researher ID: AAE-8983-2019 e-mail: alhigesh@gmail.com
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Abstract | Based on the results of Monte Carlo calculations of the spatial energy distributions of photons in iron from point isotropic and planar mononirectional monoenergy sources with energies of 10-50 MeV, the air Kerma attenuation multiplicities and dose accumulation factors of the material under consideration are determined.. The calculations take into account the contribution of the fluorescence, annihilation radiation and bremsstrahlung. The independence of the accumulation factors from the angular distribution of the source radiation is shown, and the independence of the attenuation multiplicities from the angular distribution of the source radiation and the weak dependence on its energy in the energy range 30-50 MeV is also shown. The corrections for the barrier protection are determined and their independence from the thickness of the protection and the photon energy of the source is noted. The obtained information allows to reduce the errors of the results of calculations of the thickness of anti-radiation protection of electronic accelerators at high energies, using developed engineering methods of calculation. The obtained information can also be used in calculations of protection against brake radiation of electronic accelerators by engineering methods. |
Keywords | electronic accelerators, bremsstrahlung radiation, protection, dose, accumulation factor, attenuation multiplicity, Monte Carlo. |
Language | Russian |
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Papers | 17 - 25 |
URL Article | URL Article |
Open Article |
Article Name | Determination of Transport Packaging Kit Speed before Impact with a Rigid Barrier during Emergency Impact Tests on the Missile Track |
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Authors | S.I. Gerasimov*,**1, V.I. Erofeev*2, V.A. Kikeev*3, O.V. Krivosheev**4, V.I. Kostin*5, I.A. Odzeriho*,**6, R.V. Gerasimova**7, A.A. Glukhov**8, V.V. Pisetskiy**9 |
Address | *Mechanical Engineering Research Institute of Russian Academy of Sciences, Nizhny Novgorod, **Sarov Physics and Technical Institute of National Research Nuclear University «MEPHI», 1ORCID iD: 0000-0002-6850-0816 WOS Researcher ID: L-2727-2016 e-mail: s.i.gerasimov@mail.ru 2ORCID iD: 0000-0002-6637-5564 e-mail: erf04@mts-nn.ru 3ORCID iD: 0000-0002- 2040-2045 e-mail: vkikeev@mail.ru 4ORCID iD: 0000-0003-4597-4215 e-mail: staff@vniief.ru 5ORCID iD: 0000-0002-2711-3975 e-mail: costin.vasi1@yandex.ru 6ORCID iD: 0000-0002-2672-7318 e-mail: odzeriho.irina@yandex.ru 7 ORCID: 0000-0002-2711-3975 e-mail: grv@sarfti.ru 8ORCID: 0000-0003-4470-6518 e-mail: glukh0w.a@yandex.ru 9ORCID: 0000-0003-2878-6191 e-mail: pvv@sarfti.ru |
Abstract | Verification of compliance of the transport packaging kit design with the requirements for packages intended for the transport of radioactive materials by air, provides for a collision with a target at a speed of not less than 90 M/s. Confirmation of this basic parameter of the tests should be duplicated by several measurement methods including the use of analog means of film registration. The paper describes an algorithm for determining the speed of the transport packaging kit before impact on the information on the film carrier. The questions connected with the choice of the geometrical scheme of registration and realization of various variants of frame filling are considered. The determination of the linear movement of the transport packaging kit in the shooting plane, the calculation of the scale and frequency of shooting is described. An example of the application of the technique to determine the speed of the transport packaging kit before impact in one of the experiments on the missile track is given. |
Keywords | speed, impact, packaging, radioactive materials, spent nuclear fuel, air transportation, accident, missile track equipment |
Language | Russian |
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Papers | 26 - 37 |
URL Article | URL Article |
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Design, manufacturing and commissioning of nuclear industry equipment
Article Name | Effective Increasing of NPP Reliability Introducing the Active Monitoring System of Block Construction Stress-Strain State |
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Authors | A.A. Zemlyanskij*1, V.P. Grigorenko**2, K.A. Zemlyanskij**3, S.A. Dubnov*4 |
Address | *Balakovo Institute of Engineering and Technology, the branch of the National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Chapajeva street,140, Balakovo, Saratovskaja oblast’, Russia 413853 **Balakovo Nuclear Power Plant, Balakovo, Saratovskaja oblast’, Russia 413801 1ORCID iD: 0000-0002-6379-0770 WOS Researcher ID: AAC-1036-2019 e-mail: zeml_aa@mil.ru 2ORCID iD: 0000-0002-9581-1193 WOS Researcher ID: AAC-5036-2019 3ORCID iD: 0000-0001-6299-7879 WOS Researcher ID: AAC-1039-2019 e-mail: zeko.macos@gmail.com 4ORCID iD: 0000-0002-2871-1029 WOS Researcher ID: AAC-1034-2019 e-mail: dubnov_semyon@mail.ru |
Abstract | All nuclear power facilities are unique facilities and are simultaneously identified according to STO 1.1.1.02.009.0873-2017 "Ensuring Safety in the Operation of Buildings and Structures of Nuclear Power Plants" as hazardous production facilities with an increased level of responsibility. In this connection, according to the authors, as well as international and domestic experts, the sixth protective barrier should be promptly introduced into the NPP safety system in the form of a system of active monitoring of irreplaceable load-bearing and enclosing structures of the reactor and turbine compartment. The paper substantiates the fact that the current monitoring systems do not allow reliable and effective assessment of the level of VAT of structures, as well as do not allow to assess the level of "residual" stresses, the presence of which in practice may also lead to pre-emergency and emergency situations. To solve this problem the article develops an innovative system of VAT monitoring of both metal and reinforced concrete bearing structures, which is completely devoid of shortcomings of traditional monitoring systems, and which also has a number of undeniable advantages. The proposed monitoring system is developed on the basis of the Forster effect, which is based on the dependence of the relative magnetic permeability of ferromagnetic media on the level of operating stresses in the material. The authors obtained patent No. 2295118 for the developed monitoring system, which testifies to the level of efficiency of innovative solution of this problem. In general, the use of the proposed system as the sixth barrier of protection will in practice prevent any external, pre-accident or emergency situation at the NPP with simultaneous increase of safety and reliability of operation of the NPP after the extension of its operation life. |
Keywords | protective barriers, reliability, magnetometric sensors, monitoring of building structures, residual stresses |
Language | Russian |
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Papers | 38 - 47 |
URL Article | URL Article |
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Article Name | Technology Optimization for Producing 110G13P Powder Steel by System Analysis Methods |
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Authors | N.S. Zubenko1, E.A. Tsvelik2, R.V. Pirozhkov3 |
Address | Volgodonsk Engineering Technical Institute the branch of National Research Nuclear University “MEPhI”, Lenin St., 73/94, Volgodonsk, Rostov region, Russia 347360 1ORCID iD: 0000-0001-5682-519X WoS Researcher ID: AAD-4371-2020 e-mail: paradizka007@yandex.ru 2ORCID iD: 0000-0001-9048-275X WoS Researcher ID: G-3560-2018 e-mail: stvelik@mail.ru 3ORCID iD: 0000-0002-1547-6568 WoS Researcher ID: AAD-3193-2020 e-mail: roman-3.14@yandex.ru |
Abstract | The paper deals with theoretical aspects of optimizing the structure and properties of 110G13P austenitic powder steel using the system analysis method (Pareto method). The optimal sintering temperature of cold-pressed work pieces is selected using the criterion of maximum wear resistance of steel. Microstructures of 110G13P steel in the selected range of sintering temperatures are given. The dependence of the obtained microstructures on the sintering temperature of samples is shown. |
Keywords | powder metallurgy, dynamic high temperature pressing, sintering, system analysis, optimization, Pareto method, microstructure. |
Language | Русский |
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Papers | 48 - 55 |
URL Article | URL Article |
Open Article |
Article Name | Full-Bridge Converter with Soft Commutation in All Load Range |
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Authors | S.А. Baran1, G.P. Smetankin2 |
Address | Volgodonsk Engineering Technical Institute the branch of National Research Nuclear University “MEPhI”, Lenin St., 73/94, Volgodonsk, Rostov region, Russia 347360 1ORCID iD: 0000-0002-3232-4072 WoS Researcher ID: I-7933-2018 e-mail: bastr@rambler.ru 2ORCID iD: 0000-0002-8191-6496 e-mail: nvo_@mail.ru |
Abstract | The development of converters with soft commutation improves issues of radiation interference and electromagnetic compatibility, reduce weight and size parameters by increasing efficiency and conversion frequency. A significant reduction in commutation losses allows the use of high-power IGBT modules at higher frequencies which they are not able to withstand in traditional converters with pulse-width commutation. |
Keywords | IGBTs, frequency conversion, commutation, electromagnetic compatibility |
Language | Русский |
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Papers | 56 - 61 |
URL Article | URL Article |
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Operation of nuclear industry facilities
Article Name | Uncertainty in Calculation Due to «Instantaneous» Emergency Situations in WWER-1000 |
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Authors | D.A. Amer*1, S.P. Nikonov**2 |
Address |
*Alexandria University, El-Guish Road, 22, Alexandria, Egypt, 11432 **Institute of Nuclear Physics and Technology (INP&T), National Research Nuclear University «MEPhI», Kashirskoye shosse, 31, Moscow, Russia 115409 1ORCID iD: 0000-0003-0365-2533 WoS Researcher ID: AAC-7247-2019 e-mail: Dina.amer@alexu.edu.eg 2ORCID iD: 0000-0003-4890-6920 e-mail: SPNikonov@mephi.ru |
Abstract | The paper shows the occurrence of pressure waves and their propagation in the equipment of the first circuit of the WWER-1000 reactor plant in emergency situations associated with an instantaneous stop of the Main circulation pump or a two-way flow with an instantaneous two-way break in the cold thread of the main circulation pipeline. The influence of the time of initialization of the accident (pump stop, pipeline rupture) on the intensity of the process-amplitude, frequency of pressure changes is investigated. Pressure drops during an emergency on the main elements of the circuit are considered. It is shown that the maximum changes in the amplitude and frequency of both the pressure and the pressure drops on the circuit elements belong to the initial stage of the accident. The main attention is focused on the pressure drops on the equipment, because this parameter determines the dynamic loads on the equipment, which can lead to its failure. |
Keywords | ATHLET, WWER-1000, Kalinin NPP, DBE, LOCA, MCP, moment, emergency situations, pressure waves, time gap. |
Language | English |
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Papers | 62 - 72 |
URL Article | URL Article |
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Article Name | Regulatory Works of MP-1000 Fuel Overloading Machine Adjustment at the Preventive Maintenance Stage |
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Authors | Yu.I. Pimshin*1, V.A. Naugolnov*2, I.Yu. Pimshin**3 |
Address | *Volgodonsk Engineering Technical Institute the branch of National Research Nuclear University «MEPhI», Lenin St., 73/94, Volgodonsk, Rostov region, Russia 34736 **Don State Technical University, Gagarin square 1, Rostov-on-Don, Russia, 344000 1ORCID iD: 0000-0001-6610-8725 WoS Researcher ID: J-6791-2017 e-mail: yipimshin@mephi.ru 2ORCID iD: 0000-0002-1631-3365 e-mail: naugolnov53@mail.ru 3ORCID iD: 0000-0002-8267-3617 WoS Researcher ID: O-8809-2018 e-mail: ivan.pimschin@yandex.ru |
Abstract | The article presents the study results of the possibility to increase the accuracy of pointing the of the fuel refueling machine by determining the actual parameters of the structural elements including determining geometric characteristics which include leveling the paths of the manipulator and its bogie, control of straightness and parallelism in each pair of paths of the machine and bogie, control of rod verticality, control of the course of the fuel reloading machine bridge in terms of the equality of movement of its right and left sides. Taking them into account with automated guidance of the fuel refueling machine rod to the fuel assembly shank, it allows to achieve complete automation of the process and increase the efficiency of the fuel reloading company ultimately. |
Keywords | geometric parameters; fuel refueling machine; control of paths of the machine and bogie, straightness control, location, excess, rod verticality, running over of the machine sides. |
Language | Russian |
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Papers | 73 - 80 |
URL Article | URL Article |
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Article Name | The Conception of NPP Equipment Monitoring Based on Nonparametric Statistics and Trained Neural Network |
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Authors | V.V. Krivin1, V.Ya. Shpicer2, V.G. Beketov3, I.O. Ishigov4, V.A. Tolstov5. |
Address | Volgodonsk Engineering-Technical Institute – Branch of NRNU «MEPhI», Lenina street, 73/94, Volgodonsk, Russia 347360 1ORCID iD: 0000-0003-0903-0786 WoS ResearcherID: E-2267-2018 e-mail: vvkrivin@mephi.ru 2ORCID iD: 0000-0002-5051-5091 e-mail: shpitser@mephi.ru 3ORCID iD: 0000-0003-0242-6745 WoS ResearcherID: G-3866-2017 e-mail: vvbeketov@mephi.ru 4ORCID iD: 0000-0002-5829-6989 WoS ResearcherID: E-2448-2018 e-mail: ioishigov@mephi.ru 5ORCID iD: 0000-0001-7144-5195 WoS ResearcherID: F-1032-2017 e-mail: v-tolstov-2017@mail.ru |
Abstract | The article deals with the concept of monitoring based on nonparametric statistics. It is supposed the possible application to monitor the technological systems of nuclear power plants. Modern complex plants and technogenic objects are equipped with industrial monitoring systems. The evolution of such systems in natural form is the generation of alternative concepts, constructs, and items selection for efficiency during operation. |
Keywords | monitoring, forecasting, NPP safety, main circulation pump, digital signal processing, artificial neural network, nonparametric statistics, Kalman-Bucy filter, real-time processing, regulatory limits. |
Language | Russian |
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Papers | 81 - 89 |
URL Article | URL Article |
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Article Name | Usage of Natural Uranium in Nuclear Reactors |
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Authors | A.V. Goncharuk |
Address | Institute of Nuclear Physics and Technology (INP&T), National Research Nuclear University «MEPhI», Kashirskoye shosse, 31, Moscow, Russia 115409 ORCID iD: 0000-0001-9159-4243 WOS Researcher ID: O-6356-2018 e-mail: del17@yandex.ru |
Abstract | The paper reviews the modern tendencies in the development of the world nuclear energy sector and progress in research of renewable energy technologies. Due to the unique advantages of the nuclear energy generation it proves to be very prospective source of power for the countries with a very intensive pace of development and huge energy demands. The main part of the article goes through the physical and economic backgrounds of the uranium fuel usage. The basics of the into-core processes and nuclear reactions substance are described. The comparative assessment of some aspects of thermal neutron and fast neutron technologies is listed. The physical background behind the two different reactor types builds up the conclusion on the potential advantages for the fuel basis of the atomic energy due to high involvement of the fast neutron specter into the nuclear energy generation processes. |
Keywords | uranium, fast neutrons, nuclear reactor, atom, fuel, BN-800. |
Language | Russian |
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Papers | 90 - 97 |
URL Article | URL Article |
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Article Name | Synchronization of Industrial Higher Education Institution Objectives with Strategy of «Rosatom» State Corporation Development as Nuclear Energy Safety Factor |
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Authors | V.A. Rudenko1, M.V. Golovko 2, S.А. Tomilin3, О.F. Tsuverkalova4 |
Address | Volgodonsk Engineering Technical Institute the branch of National Research Nuclear University “MEPhI”, Lenin St., 73/94, Volgodonsk, Rostov region, Russia 347360 1ORCID iD: 0000-0002-6698-5469 WoS Researcher ID: B-7730-2016 e-mail: VARudenko@mephi.ru 2ORCID iD: 0000-0002-4835-9800 WoS Researcher ID: J-2461-2016 e-mail: MVGolovko@mephi.ru 3 ORCID iD: 0000-0001-8661-8386 Wos Researher ID: G-3465-2017 e-mail: SATomilin@mephi.ru 4 ORCID iD: 0000-0001-6304-4498 WoS Researcher ID: J-8183-2016 e-mail: oftsuverkalova@mephi.ru |
Abstract | The article considers the issues of the need to synchronize the objectives of industrial universities with the strategies of enterprises which are industrial partners. The strategically significant and mutually beneficial cooperation of enterprises and educational organizations is justified. The role of the supporting universities of the “Rosatom” State Corporation and their regional branches in the areas where nuclear power facilities are located in the formation of a high level of safety culture among future employees of nuclear plants in Russia and abroad is determined. The paper proposes the events for implementation in accordance with the development directions of “Rosenergoatom Concern” JSC. |
Keywords | “Rosatom” State Corporation, VETI NRNU MEPhI, “Rosenergoatom Concern” JSC, safety, development strategy, university, personnel training. |
Language | Russian |
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Papers | 98 - 106 |
URL Article | URL Article |
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Article Name | Evaluation of the Deployment Results of the Rosatom Production System and the Opportunity to Extrapolate Lean Technologies to the Social Sphere |
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Authors | I.A. Ukhalina1, S.P. Agapova2, N.A. Efimenko3 |
Address | Volgodonsk Engineering Technical Institute the branch of National Research Nuclear University “MEPhI”, Lenin St., 73/94, Volgodonsk, Rostov region, Russia 347360 1ORCID iD: 0000-0002-1928-7510 WoS Researcher ID: E-3153-2017 e-mail: uhalina@yandex.ru 2 ORCID iD: 0000-0002-8484-2912 WoS Researcher ID: E-4842-2017 e-mail: svetlana-1164@mail.ru 3 ORCID iD: 0000-0001-8113-6759 WoS Researcher ID: E-3439-2017 e-mail: NAEfimenko@mephi.ru |
Abstract | The purpose of this study is to evaluate the results of the system deployment of the Rosatom Production System in five main areas and the possibility of transferring lean approaches and technologies used at Rosatom enterprises to the organization of the social sphere. In the process of studying the stated problem, such research methods as analysis and synthesis, the method of economic modeling are used. To assess the possibility of using lean technologies in social organizations, the method of extrapolating the resulting positive effect from the use of lean manufacturing at Rosatom enterprises to healthcare facilities is used. The article provides an assessment of the results of fulfilling the social order of nuclear cities through the implementation of social partnership programs for the Lean Polyclinic project. Based on the analysis of the results of using lean approaches in medical institutions in the pilot regions and to improve the quality of public services, it is proposed to introduce lean technologies in various non-manufacturing enterprises. The paper concludes that as a result of the partnership of effective Production systems and social enterprises, not only clinics, hospitals, but entire cities can be made convenient and comfortable. |
Keywords | Lean manufacturing, Rosatom production system (RPS), lean technologies, social partnership, lean polyclinic. |
Language | Russian |
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Papers | 107 - 115 |
URL Article | URL Article |
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Article Name | Issue of Innovative Potential of Students of Industrial Universities – «Rosatom» State Corporation Partners |
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Authors | N.I. Lobkovskaya1, A.V. Zheleznyakova2, A.N. Nedorubov3 |
Address | Volgodonsk Engineering Technical Institute the branch of National Research Nuclear University “MEPhI”, Lenin St., 73/94, Volgodonsk, Rostov region, Russia 347360 1 ORCID iD: 0000-0002-0297-5800 WoS Researcher ID: O-3879-2018 e-mail: NILobkovskaya@mephi.ru 2ORCID: 0000-0003-3511-2734 WoS Researcher ID: K-2597-2017 e-mail: AVZheleznyakova@mephi.ru 3ORCID: 0000-0002-3413-7449 e-mail: batrakan@rambler.ru |
Abstract | The paper presents a study of the student interest level at VETI NRNU MEPhI in the development of their own innovative potential. It considers the formal side of youth involvement in the implementation of research projects and the improvement of their own intellectual forces. A sociological survey showed a fairly high level of students' innovative charge noted the difficulties of using an innovative resource, and formulated possible causes of problems of self-realization in this direction. It is found that most of the young people surveyed do not have a steady motivation to reveal their own innovative potential explaining this by increased complexity and laboriousness. The problem of formal and informal employment of students is noted, its causes are revealed. The given data indicate the importance of the development of scientific research skills and confirms the idea that the problem of inefficient use of innovative potential is quite significant, covers a significant part of students and requires further study and system monitoring. |
Keywords | innovation, innovative potential, innovative development, research, students, motivation, life guidelines, development, self-realization, sociological survey. |
Language | Russian |
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Papers | 116 - 124 |
URL Article | URL Article |
Open Article |
Article Name | Electronic Training Technology on Mathematics of Students Oriented to Work in Nuclear Industry |
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Authors | N.P. Vasilenko1, N.I. Chabanova2 |
Address | Volgodonsk Engineering Technical Institute the branch of National Research Nuclear University “MEPhI”, Lenin St., 73/94, Volgodonsk, Rostov region, Russia 347360 2ORCID iD: 0000-0001-7054-1302 WoS Researcher ID: G-4963-2017 e-mail: NPVasilenko@mephi.ru 2ORCID: 0000-0002-5738-6069 e-mail: nich@inbox.ru |
Abstract | The article presents the developed and tested technology of e-learning for students at the university. It gives practical examples on the organization of the educational process in accordance with this technology in the mathematical preparation of students. The significance of this approach for the mathematical preparation of students oriented to work in the nuclear industry in connection with the digitalization of all processes in the industry is shown. The effectiveness of the use of this technology in the educational process is confirmed by studies on the level of preparation of students in mathematics, their satisfaction with the organization of the educational process and the dynamics of the students' mathematical intelligence. |
Keywords | e-learning, mathematical training, personnel of the nuclear industry, learning technology. |
Language | Russian |
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Papers | 125 - 135 |
URL Article | URL Article |
Open Article |