bluuebunny/crossref_metadata_2025_split huggingface dataset:
Increasing burn-up of KLT-40S fuel by introduction of neptunium
Authors: Baatar T , Glazkov O V 
Published: December 2020

Abstract
A floating nuclear power plant (FNPP) is one of the varieties of small nuclear power plants. Among mobile small nuclear power plants, floating power units with KLT-40S reactors, developed on the basis of reactor technologies already mastered in nuclear shipbuilding, deserve special attention. The involvement of protactinium and neptunium in the fuel compositions can significantly increase fuel burn-up in light-water reactor. The chains of nuclide transformations, starting with protactinium and neptunium, are characterized by a gradual improvement of the multiplying properties, which ensures an increased fuel burn-up. Due to limited reserves of protactinium and neptunium, their use in large-scale nuclear power plants may not proper. In this paper, the use of neptunium (as a more accessible material compared to protactinium) as burnable absorber in order to increase burn-up of KLT-40S fuel is considered. For neutron-physics calculations, GETERA and SKETCH-N software packages are used. Particular attention is paid to ensuring favourable values of fuel and coolant temperature reactivity coefficients.
Modelling and simulating of a multiple input and multiple output system to control the liquid level and temperature by using model predictive control
Authors: Laidani Z , Tolokonsky A O , Abdulraheem K K , Ouahioune M , Berreksi R 
Published: December 2020

Abstract
In recent years, Model Predictive Control has been regarded as one of the most reliable advanced control methods widely used in industrial and nuclear processes. Model predictive control uses a system model to forecast its future response, and also treats a real-time optimization algorithm to choose the best control action that leads the predicted output to the reference. The overall design goal of a predictive control model is to compute the trajectory of a future manipulated variable input signal to optimize the future behavior of the plant output. Optimization is performed within a limited time window by providing information at the beginning of the time window. This paper proposes a predictive controller MPC model for multiple input-output systems. The design of the controller includes the development of a model of the state space system for the tank system, then the design and the simulation of the MPC controller for the developed model system. The variables to be controlled are the temperature and the liquid level of the tank by changing the MPC’s parameters.
Numerical and analytical modelling of concurrent physico-chemical processes passing at the boundary of steel in a liquid-metal coolant leading to film formation
Authors: Avdeenkov A V , Achakovsky O I , Orlov A I 
Published: December 2020

Abstract
We analyse an engineering model for a self-consistent calculation of the growth of an oxide film in circulation circuits with a heavy liquid metal coolant and concentrations of impurities (oxygen, iron, magnetite) from the point of view of possible uncertainty in determining the activity of oxygen. The modelling of thermohydraulic and physicochemical processes is based on solving the associated three-dimensional equations of hydrodynamics, convective-diffusive transport, and the formation of chemically interacting impurity components in the coolant volume and on the surface of steels. Model calculations of the influence of the uncertainty of oxygen activity on the rate and integral yield of iron, which under the given conditions of the oxygen regime after interaction with oxygen determines the appearance of magnetite. It is numerically demonstrated that in the saturation mode there is a model-independent characteristic, which is determined by the parabolic constant and thickness of the oxide film characteristic of steel. Understanding these processes is highly important for justification of loops with HLMC and steadiness of structural materials that are in contacts with HLMC.
Influence of zirconium concentration on the extraction of technetium (VII) in the processing SNF
Authors: Touiza M , Ananiev A V 
Published: December 2020

Abstract
Technetium is part of the fission products of uranium formed during the operation of a nuclear reactor. The accumulation of technetium in the fuel is about 1090 g/t-U with a burn up of 40 GW day/t-U. The half-life of Tc-99 is 212 thousand years and its removal into radioactive waste together with relatively short-lived (T1/2 = 30–50 years), the handling of which implies near-surface storage, seems unacceptable. In view of this, it is advisable to remove Tc from the 1st cycle raffinate before concentrating and solidifying. All known variants of Tc isolation are based on its ability to complexate with TBP with subsequent extraction, as well as to co-extract in anionic form with U (VI) and tetravalent elements. To this end, we studied the effect of zirconium (VI) concentration on the extraction of technetium (VII) in the processing of spent nuclear fuel (SNF).
Investigation of radioactive reactor graphite by gamma-spectrometric method
Authors: Bazdnikin N I , Zubarev V N , Aleeva T B 
Published: December 2020

Abstract
In this research radioactive contamination of graphite of the 4th block of the Leningrad NPP was determined using the method of gamma-spectrometric analysis. The obtained results of the specific activity of isotopes were compared with the contamination of the graphite masonry of industrial uranium-graphite reactors. It was found that in comparison with graphite of industrial uranium-graphite reactors, the LAES-4 masonry has less contamination with decay products and actinoids, which indicates that, unlike industrial reactors, there were no incidents of fuel Rod destruction in power plants. But at the same time, it was noted that the RBMK masonry has an increased content of60Co. It was determined that this is due to the increased content of iron and cobalt impurities in unradiated graphite for RBMK. This research is important in terms of confirming the view that spent graphite from each specific uranium-graphite reactor has important features that need to be taken into account when planning decommissioning measures.
Traditions in teaching physics at the regional Kaliningrad University
Authors: Korneva I P 
Published: December 2020

Abstract
The article discusses the features of the functioning of the physical education system at the regional University of Königsberg (East Prussia) and the University of the Kaliningrad region. The article discusses the specifics of training physicists at each stage of the University’s development. It is shown that the scientific and educational processes are inextricably linked with each other when teaching physics. Participation of the faculty of physical departments of the University in research work and involvement of students in it is the key to successful training of highly qualified specialists. At various stages of the development of the physical education system, special attention was paid to the training of physics teachers. The tradition of teaching physics, laid down in Albertina, is continued at the modern University of Kaliningrad.
Methodological problems of big data and artificial intelligence in the medical specialists training
Authors: Mikhailenko O V , Dorrer G A 
Published: December 2020

AbstractThe emergence of big data and artificial intelligence firstly in healthcare has caused considerable excitement, stating the need to improve approaches to diagnosis, prognosis, and treatment. Despite enthusiasm, the methodological assumptions underlying the movement of big data and artificial intelligence in medicine are rarely studied. This article outlines the methodological problems facing this movement. In particular, the following topics were considered: the theory of large data congestion, the limits of the algorithms action, and the phenomenology of the disease. These methodological issues demonstrate several important roles for these technologies that must be considered and studied before they are integrated into the healthcare system.
Strategic development and increasing the efficiency of construction expertise institution in Russia
Authors: Afanasyev A P , Pukhova V V , Chepeleva K V , Saenko I A , Krelina E V 
Published: December 2020

Abstract
Design documentation assessment of compliance to technical regulations and building codes requirements in the Russian Federation is carried out through the institution of construction expertise. Elaboration and expert examinations of design documents and the results of engineering surveys are some of the most important stages in the implementation of investment and construction projects, as they allow reducing technical, legal and financial risks of the construction manager. This activity is important for all participants in investment and construction activities, which makes it necessary to study the construction expertise institution in order to determine its main development directions. The article presents the internal and external environment analysis results of construction expertise institution in the Russian Federation. Strategic tools made it possible to identify strengths and weaknesses, threats and opportunities, to determine the main strategic development directions for the institution of construction expertise in the Russian Federation, in accordance with the Draft Strategy for construction industry development in the Russian Federation until 2030. The strategic directions for the development of the construction expertise institution provided by the roadmap included improvement of regulations in organization and production of construction expertise, digital environment development of the construction expertise institution, transition to construction engineering, improvement of educational activities and training for institutions carrying out expert activities, knowledge building. To assess the implementation of strategic directions we identified expected target indicators for three main development scenarios of the construction expertise institution in the Russian Federation.
Transforming requirements for engineering occupations as affected by technological changes
Authors: Melnikova E V , Melnikova A A , Sergeev M Yu 
Published: December 2020

Abstract
This article is devoted to studying the influence of technological changes on transforming the necessary set of skills for engineering occupations. The expected changes in qualification requirements for engineers is based on the analysis of industrial revolution. The growing importance of soft skills is acknowledged. The methodological conclusions regarding the need to take into account the level of triple helix awareness, along with the parameters of the labor market when forecasting the directions for qualification requirements transformation for engineers were substantiated. It is noted that being ahead in the formation of new skills may have a positive impact on the growth in innovative activity. It is this aspect of the relationship between technology and qualification development trends that determines the role of educational organizations in the innovation ecosystem. It is shown that the convergence of technologies leads to an expansion of the range of professions referred to as engineering. The use of particular tools for assessing the demand for competencies allows solving only situational research tasks, whereas in the meanwhile scientifically advanced ecosystems require a system for monitoring technological and qualification changes, primarily in relation to engineering qualifications, since they can become a "bottleneck" of technological development. A methodology for systematizing the influence of technological trends on the qualification requirements is proposed. The mentioned methodology is based on bringing into conformity reciprocal trends on the meso-level within the framework of triple helix cooperation on the regional scale. As the labor market acquires flow characteristics, the need for separate monitoring procedures will decrease, with analysis algorithm simplifying.
Investigation of the geometric meaning of the derivative using mathematical packages
Authors: Trofimets E N 
Published: December 2020

Abstract
The paper suggests that in the process of training mathematical disciplines in technical universities in the context of digitalization of education, applied software packages to solve practice-oriented problems are used. It is advisable to reveal basic definitions, concepts, theorems, laws on practical examples, following the wise Latin aphorism “Plus usus sine doctrina, quam c. usum doctrina valet Q/Practice without theory is more valuable than theory without practice”. The more practical examples will be used in the process of mastering the theoretical material, the stronger and more fundamental the mathematical knowledge of students will be. The paper examines the stages of investigation the geometric meaning of the derivative using the MathCad computer system. The geometric meaning of the derivative will be the most accessible and memorable when students study intersecting parabolas.
Combined heat supply “heat pump-solar plant” system
Authors: Ishnazarov O Kh , Koroli M A 
Published: December 2020

Abstract
The article presents the possibility of a widespread introduction of heating systems using a heat pump, as well as a solar plant. Particular attention is paid to the useful properties of the combined heating. There are some assumptions in the mathematical model that do not affect the final result. The factors influencing the operating mode of the combined heating and hot water supply system are presented. It is indicated that the temperature of the condenser and the temperature difference have a significant effect on the combined heating system "heat pump-solar plant". Thus, the joint operation of a heat pump and a solar plant will make it possible to rationally build a heating system.
Reflection the modern ideas about the content of general education in the school physics textbooks
Authors: Purysheva N S , Isaev D A 
Published: December 2020

Abstract
The article considers the evolution of the general education goals in particular physics education, changes through this process the understanding of the subject «Physics» content. Soviet education aimed at preparing a comprehensively harmonically developed personality through the knowledge paradigm and the content of education was fully consistent with this goal. Later it takes place a rethinking approaches of understanding the content of education and the content of a subject. At the present goals of education are represented in the form of educational results: personal, subject and metasubject, which implies a change in the content of the subject «Physics» in the direction of increasing the importance of methodological, interdisciplinary, evaluative knowledge and strengthening the procedural component. This trend reflects in the textbooks: the procedural component is expanded, there are problems and tasks that involve conducting experimental research in the classroom and at home, solving creative tasks, and completing educational projects. The article substantiates the role of the physics textbook in improving educational outcomes, provides examples of the organization of educational content in school textbooks of physics in Russia and Singapore.
Digitalization as the basis for advancing educational services
Authors: Fedotov A A , Pilipenko O V , Panfilova L V , Borisoglebskaya L N , Sergeev S M 
Published: December 2020

Abstract
The development of the educational services market takes place in the whole world under the influence of innovation technological and organizational solutions. The use of online technology provides a wide space for developing cooperation between educational institutions not only when mastering current disciplines. This is possible thanks to the modern concept of education being aimed at the possibility of students to choose a number of disciplines of various types based on their own preferences. The application of standard methods does not provide the necessary information for predicting which subjects will be of interest to each specific student. In this case, it is necessary to use digital technologies to process information provided by aggregator sites and search engines. This information reflects statistical data on the level of interest of a student applicant in one area or another of professional training. Based on these probabilistic features, it becomes possible to build a matrix of consumer preferences, viewing the student as a consumer of educational services. These problems can only be solved using digital technologies and by applying methods of stochastic optimization, the mathematical theory for finding solutions during uncertainty, and computer modeling.
Innovative technology in the research of implementation dynamics of network attacks on the digital educational resources
Authors: Bokova O I , Drovnikova I G , Ovchinnikova E S , Rodin S V 
Published: December 2020

Abstract
Based on the analysis of the verbal models for implementing some of the most dangerous and typical network attacks on the modern digital educational resources as well as of the formal models of their functioning developed using Petri-Markov networks, graph models are developed in the article and simulation modeling of dynamics of the implementation of these network attacks in the CPN Tools software environment is carried out, too. Simulation results are presented as the quantitative values of probability-time characteristics of the network attack types under examination. Using the obtained results as initial data when assessing the threats of network attack implementation, developing a model of relevant attacks for a specific educational environment and forming quantitative requirements to the information resource protection systems will increase the real protection of both the existing digital educational environment and the one under development.
Capabilities of digital gamification resources to form the basis of information security
Authors: Zenkina S V , Ivshin M S , Kobeleva G A , Mikhlyakova E A , Omelin V N 
Published: December 2020

Abstract
The research problem is determined from the need to implement the didactic capabilities of gamification tools to support the study of various aspects of information security and information protection. The study purpose is to identify opportunities for the effective use of digital gamification resources to form learners’ information security competencies that will allow to successfully socialize in a modern digital society in the future. The work methodology includes an analysis of the literature of foreign and domestic authors on the use of gamification resources in cognition, training; the method of systematization and generalization of facts about the problems of individual information security, the concepts of the formation of special digital literacy in the space of new software tools and devices. The potential of digital technologies regarding the development of free orientation skills in the modern information environment, the organization of search activities, the use of various cognition strategies is explored. The revealed opportunities are shown on the example of the organization of information interaction of the didactic process participants in the Class Craft gaming environment. The conclusion summarizes the possibilities for the effective use of digital gamification resources for solving cognitive, communicative and organizational tasks in compliance with information security standards.
Building a GERT model of life cycle of educational and scientific information resources using Process Mining technology
Authors: Dorrer M G , Popov A A , Trishkina E I , Romanov N A 
Published: December 2020

Abstract
The main priority of this article is to develop a tool for numerical forecasting of the life cycle of information resources based on actual life cycle data in the form of event logs of the resource history. To solve this problem, we used the GERT network device. To build a GERT network describes the life cycle model of an information resource, we were used methods of intellectual analysis of processes (Process Mining) implemented with the ProM Framework. In the course of the work, an analysis of the life cycle of information resources of the Scientific electronic online library was carried out. The work considers the process of extracting data used for modeling the GERT network, as well as the process of identifying the law of distribution of the probability density of the duration of the life cycle stages. The model of the GERT network is constructed and the law of distribution of the probability density of the duration of the life cycle of an information resource was described. The obtained result confirms the applicability of Process Mining technology to probabilistic analysis and forecasting of the life cycle of information resources.
Training the IT students skills in the digital educational environment
Authors: Andrianov I A , Rzheutskaya S U , Sukonschikov A A , Davydova E N , Zaslavskiy A A 
Published: December 2020

Abstract
The article discusses a distant trainer for students’ IT skills, developed at Vologda State University. The history of the resource development, its functionality, architecture and implementation features are considered. An example of using the resource for teaching the course "Mathematical logic and theory of algorithms" is given.
Actualization of self-realization need of junior school children with limited health capacities when using informational-communicative technologies
Authors: Povalyaeva O N , Schuchka T A , Filatova I Yu 
Published: December 2020

Abstract
In this article the question of personal results of education creation by means of junior school children with limited health capacities self-realization need actualization as a result of informational-communicative technologies usage is taken up. Such concepts as “self-realization” and “self-realization need” comprehension in foreign and national scientific literature are considered. On the bases of scientific literature theoretical analyses an attempt of junior school children with limited health capacities self-realization need actualization role as a mean of personal results of education creation definition is made. Self-attitude special aspects and studying reasons of are examined (42 people). 17% of test people have inflated self-esteem, 33% have reasonable self-esteem, most tested people have deflated self-esteem (43%) and 7% have low self-esteem. It’s found out that cognitive reasons predominate if talking about junior school children with limited health capacities with reasonable and deflated self-esteem. Social reasons predominate if talking about junior school children with limited health capacities with deflated self-esteem. Junior school children with limited health capacities having deflated self-esteem concentrate on their activity and behavior evaluation by others (parents, teachers). Results obtained give opportunity to suppose that self-realization need which determine self-development process as personal result of education is not actualized enough if talking about junior school children with limited health capacities. In this regard, self-realization need actualization process as a result of informational-communicative technologies usage can be considered as a component of junior school children with limited health capacities personal results of education creation problem.