bluuebunny/crossref_metadata_2025 huggingface dataset:
Ensuring availability of digital education platforms’ databases
Authors: Selyutin I N , Kadnova A M , Bokova O I , Khokhlov N S , Belyaev R V
Published: December 2020

The article offers a procedural model for optimization of making queries against the digital education platform under the conditions of negative information impacts. The model is developed on the basis of the formalized description of the process of database query processing. The model allows you to study the influence of negative information impacts and of the structure of a digital education platform on the availability indicators of its database. A model for determining plans of making queries against a digital education platform database is offered. On the basis of the genetic algorithm, a model for optimizing the allocation of database areas of a digital education platform is constructed. The effectiveness of the proposed models is confirmed by the results of a computational experiment, during which a fragment of a digital education platform was deployed. The probabilistic and temporal characteristics of database queries processing are presented. Assessment of modeling accuracy was carried out by comparing the data obtained experimentally with the data obtained during direct-analogy simulation. The developed models for optimizing the allocation of pieces of data and database query execution plans can be used to improve not only existing database of digital education platforms but also the ones under development.
The applied software role in the training of economic specialties students
Authors: Zhichkin K A , Starikov P V , Zhichkina L N , Mamaev O A , Artemova E I , Levochkina N A
Published: December 2020

The article discusses the advantages of training specialists in economics using specialized software products. The use of the computer programs in the learning process makes it possible to prepare students for solving a variety of practical problems encountered in real economic work, including in production. When using information systems as part of the professional competencies formation, the following goals are pursued: development of the student’s creative individuality; evolution of abstract and algorithmic thinking; analytical skills amplification through training in conceptual data analysis. In some cases, obtaining practical skills is facilitated by the use of specialized software products, including the Project Expert program. The computer program Project Expert is an IT-product designed for simulation of processes occurring in economic systems with an investment component. The main tasks implemented in the program include: determining the effectiveness of investments, forming and structuring projects, conducting empirical experiments to determine the stability of the developed model. Such the software package wide capabilities allow using the whole range of professional orientation situational tasks at various stages of training students-economists. Based on the experience of using the Project Expert software product in training economists at the Samara State Agrarian University, several levels of its application can be distinguished: from practical lessons to graduate qualifying work (dissertation). The IT-technologies use allows the graduate to carry out practical tasks that the employer puts before him in a quality manner and in the shortest possible time. Knowledge of an applied programs wide range provides a universal character of training future specialists in comparison with traditional approaches.
Mathematical modeling system MatLab
Authors: Kurasov D
Published: December 2020

MatLab is a unique collection of implementations of modern numerical methods of computer mathematics created over the past three decades. She incorporated the experience, rules and methods of mathematical calculations accumulated over thousands of years of the development of mathematics. This is combined with powerful graphical visualization and even animated graphics. The system with the extensive documentation attached to it can well be considered as a fundamental multi-volume electronic handbook on computer mathematical support-from mass personal computers to supercomputers.
Online blended learning in the digital environment
Authors: Iskakov I Z , Kovalenko B B , Turovskaia M S , Getmanova G V
Published: December 2020

The article presents the results of a study of the processes of educational activity in the context of the digital revolution. The authors focus on the scale of the spread of digital technologies, the provision of users with electronic means of communication, and the availability of the Internet network for argumentation of the established global information society. It was noted that in the context of the digital revolution, the face of manufacturing industries is changing. Market engagement platforms facilitate the diffusion of innovation and transformation of business models. In the context of the analyzed processes, the requirements for personnel are changing. The demand for professionals trained to work in a digital environment is expected to grow. It is hypothesized that personnel capable of research work, management of the processing of large data arrays and relevant information on the controlled or investigated object will have a high value. It is suggested that within the framework of courses on in-depth study of the use of tools of modern information systems, students should acquire the practice of independent work in the functional areas of information systems of business organizations. These can be separate information subsystems serving individual functions, processes, departments, for example, information systems and technologies of procurement, production, sales, processes for developing and implementing business development goals and strategies. The development and implementation of online blended learning courses aimed at organizing the learning environment can speed up the processes of training personnel to work in a digital environment. The authors express the point of view-network blended learning will be relevant for the training of developers and users of information systems, the development of engineering and technical and humanitarian competencies.
Applying of distance learning technologies within the digitalization of the educational process as a real alternative to education for persons with disabilities
Authors: Rezak E V , Pankrateva S G
Published: December 2020

The article deals with the topic of teaching people with disabilities. The issue of the development of education towards digitalization is considered, within which in the process of teaching, distance educational technologies are beginning to be actively used, in particular for students with disabilities. The difficulties in the process of obtaining an individual rehabilitation program for full-time, part time or extra mural education are shown there. The idea is substantiated that teaching with the use of distance educational technologies is an alternative to full-time education. This kind of training is aimed at developing students’ independence in terms of searching, processing, using and analyzing essencial information. The article presents the possibilities of using the training opportunities for persons with disabilities based on distance technologies, and also reveals a number of problems in the field of distance education. It is also noted that the use of distance educational technologies makes it possible to organize the training process for persons with disabilities.
New methods and ways of organizing the educational process in the context of digitalization
Authors: Yarychev N U , Mentsiev A U
Published: December 2020

Education is a fundamental requirement for each person and digital education is the current pattern and needs for each student or student to be increasingly engaged in their learning. Digital education encourages students to accumulate information in simpler ways. It additionally decreases the learning time. Achieving effective learning by means of digital media keeps on being a significant concern in contemporary education. The everyday utilization of all types of digital media is a piece of our lives and in this manner turns into a key segment of education. The challenge for instructors is to continually audit and structure educational methodologies supporting the students towards utilizing the instruments meaningfully and within a characterized learning experience, proceeding to assist students to become active members and authors of their own personality and inventiveness. Instructors need to locate the best use of digital media innovation, giving students each preferred position towards arriving at a universal perspective.
Problems of the formation of digital competence in the modern educational space
Authors: Bashkireva T , Bashkireva A , Morozov A , Tsvetkov S , Popov A
Published: December 2020

The article examines the problems of digital competence as a phenomenon of modern life, especially aggravated in connection with the COVID-19 pandemic. Digital competence as the latest concept, skills necessary for the modern, connected with the scientific and technical implementation of new technologies in education, economy, politics and production. The development of digital literacy concepts relies on both traditional and diverse media. However, the main difficulty in its development is associated with the digital divide, overcoming which depends on many factors. In the educational environment, digital competence should take into account the age-related physiological, mental and psychological characteristics of schoolchildren, and in preparation for professional activity-support for professional digital competence. The work also provides the author’s version of the definition of the concept of "digital competence".
Clustering of secondary school students in Portugal
Authors: Petrusevich D A
Published: December 2020

The dataset about the secondary schools in Portugal has been handled in the paper. Nowadays data analysis and mathematical statistics methods allow researchers and staff of universities to understand hidden dependencies in the data about students. In the original data competition for which the handled dataset was presented the main goal was to explain the final exams grades by means of social and behavioral parameters of a person. In the paper this question is researched in a new way. The clustering technique allows dividing students into a few groups. Mathematical models of the final grade are special for each cluster. Thus, models achieve some kind of individuality saving generality. Comparison of results of models constructed for the whole dataset and for each cluster has been prepared. Such data analysis technique can be implemented to handle another datasets with different set of features. Obtaining results of data analysis the staff is able to make conclusions on individual way of dealing with every cluster or students and some clusters can be analyzed in individual manner.
Informational mathematical competence as a predictor of critical thinking of students of pedagogical directions
Authors: Pozdnyakova E V , Fomina A V , Buyakovskaya I A , Non’ N A
Published: December 2020

The aim of the research is to modernize the structure and content of the information and mathematical competence (IMC), as well as design a model of its development among students of pedagogical directions. By the method of theoretical analysis, the concept of information and mathematical competence was clarified, its characteristic features and structural components were determined. It is proposed to design a model for the development of an IMC based on the principles of compliance with the key competencies of the future, the requirements of the federal state educational standard and the corresponding professional standards. Thus, this model includes target, meaningful, technological and effective components. The target component actualizes the IMC development as a readiness to apply mathematical knowledge, skills and abilities, as well as ICT tools for searching, critical analysis and synthesis of information, solving complex problems in professional and subject areas. The content component reflects the invariant and variable components of the curriculum, which are revealed in the disciplines of the compulsory part and the part formed by the participants in educational relations. The technological component reveals methods and technologies, as well as forms and means of teaching. The effective component is presented in three aspects: motivational-value, emotional-strong-willed, reflexive. By the means of a pedagogical experiment, the effectiveness of the designed model in the point-rating system was assessed and a hypothesis was put forward about the predictive role of the IMC in the development of critical thinking of students.
Peculiarities of using G Suite for Education services in the educational process of Polotsk State University
Authors: Barun Alena N , Dauhiala Natallia V , Dauhiala Dzmitry A , Dziatlau Uladzimir U
Published: December 2020

The article begins by defining e-learning as the use of technology for teaching and learning. There is a significant interest in identifying the advantages, disadvantages and challenges of using information technologies in the studying process for full-time studying, where e-learning is a component of the educational process, rather than a substitute for it. The article then turns to a practical case study of e-learning in Polotsk State University. The indicators and features of use of the G Suite for Education platform services in the educational process of Polotsk State University are analyzed.
Educational service robotics in the Russian Federation
Authors: Kazak A N , Oleinikov N N , Gorobets D V , Ryndach M A , Shamaeva N P
Published: December 2020

Russia has the potential to become a significant player in the educational service robotics market. Unfortunately, this potential remains unrealized. The capacity of the domestic Russian market is still insignificant, and for the sustainable development of domestic developers and manufacturers of robotic systems, it is necessary to focus efforts on foreign markets. The cultural code of the Soviet Union more than twenty years ago formed an attitude towards robots as human assistants, helping people not only explore the world around them, but also help people comprehend themselves. Since the cultural code of the USSR was largely transposed into the culture of modern Russia, a positive attitude towards robotics in general contributes to the popularization of this direction of technology as a type of activity among the population.
Experience of the distance testing system development and operation
Authors: Bukanin V A , Ivanov A N , Boriskina A V
Published: December 2020

The article discusses the original remote testing system of students BonTest, created on the basis of the Department of Safety for Life and Activity of the St. Petersburg State Electrotechnical University ETU “LETI”. As part of the “digital economy” formation, the education system faces new challenges. Electronic and distance learning of students requires the creation of new software products integrated into the digital educational environment of the educational institution. The BonTest testing system provides the ability to automatically generate options and upload test results in MS Office Word, MS Office Excel formats, as well as provide statistical data on student progress by academic semesters, groups, types of classes and course topics. The teacher’s interface allows you to control access to testing, customize the parameters for passing the test and displaying the results, including the errors of each student. The test is available both in the classroom from computers (Microsoft Windows operating system) or smartphones (iOS or Android operating systems), and in a remote format. The program has a two-stage protection against unauthorized access; its database contains more than 3 thousand test questions. Currently, the BonTest system is widely used in the educational process at the department. Its main advantages are simplicity and efficiency of administration when solving technical issues; no failures or reduced response time of the system as a result of increased load on the server, the ability to promptly refine the program toolkit for emerging requests, as well as the ability to store an extensive database of test questions.
Using media resources to develop students’ skills in self-educational activities
Authors: Astapenko E V , Bedareva A V
Published: December 2020

In the article, the authors consider and solve the issues of developing the skills of self-educational activity of students by including the use of media resources in the educational process, and in particular in the process of learning a foreign language, the relationship of such concepts as skills of self-education and the level of formation of media competence is also noted. The authors concretize the concepts of self-educational activity and media competence of students. To determine the level of development of self-educational skills of students and the level of formation of media competence, methods such as polling and questioning, developed by the authors of this article, were used. To assess the reliability of the study results, the Friedman χ2r criterion was used. The study was conducted in the period 2019-2020 and included sixty students at the Institute of Social Engineering and the Engineering and Economic Institute of the Siberian State University of Science and Technology named after M. F. Reshetnev.
Applying AI to teaching developers of new food products
Authors: Kolman O Ya , Ivanova G V , Yamskikh T N
Published: December 2020

This paper considers the possibility of applying AI technology (photo printing) to teaching developers of new food products. It touches upon the issue of creating semi-finished products balanced in basic nutrients used in the process of photo printing in the production of food products within the course of the Master’s degree program "New food products for rational and balanced nutrition". A technology of obtaining a natural dye for food ink from honeysuckle and rowan berries which are a source of vitamins and minerals is described. It will improve the existing technology of photo printing on food printers and obtain products that meet the basic principles of rational nutrition.
Partial programs in access to the social values: technology that changes preschool education
Authors: Molchaniuk Olga , Babakina Oksana , Dmytrenko Kateryna , Kharkivska Aryna , Kapustina Olena
Published: December 2020

The article describes the current state and current issues of education in Ukraine. The relationship between the tasks of reforming general secondary education and the goal of preschool education in the context of continuity between the links of preschool and primary education has been established. The elaboration of the problem of education and the value orientations by both foreign and domestic researchers is analyzed. The importance of education of social values is revealed. The peculiarities of partial programs, their difference from complex ones are clarified. Partial programs for the education of social values in preschool institutions are described: «Aflatot», «The boundless world of playing with LEGO», «Learning to live together» and programs for the formation of computer literacy in preschool children («Computer literacy for children», «Media World for Preschoolers», «Fairy Tales and Paints»). The requirements for the education of social values of preschool children have been updated and the ways to implement the above programs have been presented. Each program identifies the purpose, key elements, principles and results of implementation. The connection between the principles of personality-oriented learning and the tasks of partial programs «Aflatot», «Boundless world of playing with LEGO», «Learning to live together», «Computer literacy for kids», «Media education for preschoolers», «Fairy tales and paints» is revealed. The article presents the practical aspect of using the programs: forms of work, topics of classes, description of materials and clarity for classes, etc.
Thesaurus tool for analysing the semantic compatibility of educational texts
Authors: Rybakova G R , Andreeva A Yu , Krotova I V , Kamoza T L , Chashchina O V
Published: December 2020

The developed software is designed to analyze the semantic compatibility of educational text materials. This need is due to the existing negative trends noted by scientists (didactics, psychologists, neuroscientists) in the mechanism of information perception in the learning process of the modern generation of students. The way to level this tendency in the educational process is to take into account the unconscious patterns of information perception, associated with a gradual increase in its complexity. Semantic compatibility in the developed program is assessed by comparing the thesauri of educational materials, which allows in the future to influence the required degree of increase in their novelty (and, as a consequence, complexity). The work algorithm is formed taking into account the specific variable features of the Russian language. The proposed analytical tool is intended for didactic use, but due to the flexibility of the action algorithms provided by the program, it allows the use of the software product for the analysis of texts for other purposes, for which compatibility is of practical importance.
The university digital transformation as a tool for human capital development
Authors: Bagdasarian I S , Stupina A A , Goryacheva O E , Shmeleva Zh N
Published: December 2020

The implementation of the “Digital transformation in the Russian Federation” program is a national goal, a powerful conglomerate for the development of the Russian economy and is aimed at understanding, formulating and implementing strategies and tactics for the development of education, business and society as a whole. In the situation of a high degree of uncertainty caused by external environment and internal problems, universities today, more than ever before, cannot fail to fill in the gaps between the needs of the labor market and the professional competencies formed in the university for it. The university has all the opportunities to increase the human capital of the region, which is defined as the structure of knowledge, skills, and intellectual potential with the ability to apply them in work to create added value and is formed, among other things, by the university education system. The article presents a look at the content of the multicomponent electronic educational environment of the Master’s training in the field of Applied Informatics, which is built on the principles of consistency, which takes into account all aspects of the modern educational process: personnel, technology, educational resources.
The use of e-learning resources in distance learning
Authors: Salamatina Y V
Published: December 2020

The article presents the results of research on the implementation of electronic educational resources in distance learning in order to develop the ICT (information and communication technology) competence of teachers. The author of the article did a theoretical analysis on the concept of "professional competence of teachers", its structural content. Based on the current situation associated with the spread of coronavirus infection and the transition of all educational institutions to distance learning, the author suggested that not all school and university teachers were ready to teach using information and communication technologies. Having conducted a thorough analysis of studying problem and identified the level of developing the ICT competence of a modern teacher, the author selected and implemented Electronic Learning Resources (ELR) as a means of teaching, which, in his opinion, can improve or develop this competence. The basis of the research presented in the article is one of the secondary schools of the Ural region. The results of the implementation of the proposed ELR allowed the author to conclude that this ICT competence should be necessarily formed and improved by teachers themselves continuously and purposefully, since the system of advanced training courses does not keep pace with the rapid development of the information environment.
Project-based method in the organization of educational activities
Authors: Btemirova Rita I , Lazarova Larisa B , Kairova Fatima A , Sopoeva Ilita A , Doev Igor G
Published: December 2020

In recent decades, there has been a surge in interest in the design method. In many countries, it is now seen as an innovative approach to science and technology education. The article investigates a model based on the projects method that extend the capabilities of the theory in the successful fostering of students’ self-improvement and self-development; determines the main conditions of its implementation; selection criteria and its effectiveness indicators; the necessity and possibility to modernize the educational training of future specialists. The relevance of the research problem is conditional upon the fact that the transition to new educational standards, which poses new challenges for the graduate school, that provides cognitive activity and independent thinking of students and overcoming the reproductive style of learning requires an appropriate method. The project method is becoming more widespread in teaching practice, involving the solution of relevant and interesting problem for the trainees. The article identified socio-economic background of using the project method in the training system of highly qualified specialists. Basic criteria (valued attitude to the project activity; creativity in design and the performance of project activities) and indicators estimated the level in professional competence of the project activities. Identified and justified by organizational and educational conditions of using the project method, training specialist at the University. Since the traditional education system, which is based on the assignment of ready-made knowledge, reduces to the solution of theoretical and practical problems, specific algorithms and schemes, little oriented to the students self-improvement and self-development, the task of finding the effective ways to solve problems of the qualitative training of highly qualified specialists goes to a new level.
Modern technology for evaluating measures to optimize and improve the working of teacher and staff
Authors: Veretekhina S V , Krapivka S V , Mnatsakanyan O L , Kireeva O I , Romanova E Iu , Galin I Iu , Pivneva S V
Published: December 2020

The study was conducted using a natural science approach to assessing the working conditions of teachers and staff. Applied methods: system analysis, mathematical modeling, logical generalization of statistical data of a sociological survey. The introduction describes changes in the regulatory framework of the Ministry of labor of Russia. The requirements for the working conditions of the teaching staff during the period of self-isolation COVID-19 are described. Modern technology for evaluating measures to optimize and improve the working conditions of teachers and staff offers new calculation coefficients of criteria and indicators for evaluating the effectiveness of measures to optimize and improve working conditions. The effectiveness of measures is proposed to be evaluated by four groups of indicators: physical, social, economic, and reputational (reputation). For the resulting analysis of the effectiveness of measures, it is proposed to apply a "Generalized criterion". The generalized efficiency criterion is proposed to be calculated as a generalized Harrington desirability function. It is proposed to use regression methods, expert evaluation methods, and Bayesian methods to predict the effectiveness of the assessment. The simulation is performed using the Monte Carlo method, using Markov chains. The identified modern trends in achieving the University’s target indicators and indicators are described. Technologies that reduce time, labor, financial, and material costs are described. Overall satisfaction with the working conditions of teachers and staff was revealed. Modeling and forecasting were performed. New trends in achieving the University’s target indicators and indicators are identified and described. Ways to automate processes are suggested. A new motivational approach is described, which forms a new General vector of the University’s orientation. The practical significance of the research results is proved. In conclusion, the results of a sociological survey of teachers on satisfaction with working conditions are promised. The directions of development of the University that increase satisfaction with the working conditions of teachers and staff are identified.
Development of students’ information skills during project-based learning
Authors: Osadchuk O L , Lopanova E V , Savina N V
Published: December 2020

The aim of the study was to experimentally test the effectiveness of pedagogical conditions for the development of information skills in students in project-based learning. The research methodology was presented by the competence-based approach, from the position of which information skills were considered as an important component of students’ information competence, the project activity of students was a way of forming information skills. The leading research methods were pedagogical experiment and expert assessment. It has been experimentally proven that the process of developing students’ information skills in project-based learning can be effective if: the subject of projects will be formed based on the content of academic disciplines, taking into account the direction of professional training; the type of project will characterize the dominant goal of the students’ activity; the structure of the project will be determined by its type; students’ project activities will be carried out in the form of group independent work. The following methodologies were used: the methodology for assessing the projects completed by students, as well as the methodology for assessing the development of information skills among students. For the first time, the comparative analysis results of the various groups of information skills development among students-future teachers of different areas of professional training are presented. The results of the research can be used in the design of training sessions both in the social and humanitarian, and in the natural sciences and engineering disciplines at the university.
Elective courses for training the mathematics teachers to realise STEM approach
Authors: Tumasheva O V , Shashkina M B , Shkerina L V , Valkova Yu E
Published: December 2020

The article presents the results of research in the field of university training of mathematics teachers aimed at realising STEM education at school and other educational organisations. The authors identified 1) insufficient readiness of school teachers to implement STEM training, and 2) lack of professional mathematics teachers having special qualification in this area. Based on Russian and foreign experience, the authors propose to use the potential of the elective courses for purposeful preparation of future mathematics teachers to implement STEM training. The approach to designing the content and technological components of such a course rests on the principles of practical orientation, multidisciplinarity, professional orientation and the application of a regional context. The course consists of theoretical and practical modules, which make it possible to integrate the potential of all STEM components in the professional training of teachers and to master the basics of STEM implementation.
Pedagogical tools of eutagology in the higher education system
Authors: Klimova I V , Kostina A S , Livak N S , Lebedikhin V V
Published: December 2020

The dynamics of the socio-economic sphere development occurs due to the high requirements for the level of training of university graduates. At the same time the level of knowledge at the university does not always suit employers. As a rule, the organization has a need for more experienced and qualified employees. Young specialists who come to work are forced to undergo additional advanced training to develop both professional competencies and over-professional skills. This led to the emergence of the concept of lifelong education, one of the priority areas of which is eutagogics.
Modern pedagogical technologies for prevention of conflicts between students of vocational education institutions
Authors: Zolkin A L , Kornetov A N , Mironchuk V A , Giniyatullina D R , Ryabkova G V
Published: December 2020

This article proposes pedagogical technologies that are aimed at preventing conflicts between students in professional educational institutions of the Russian Railways OJSC. In order to fulfill the task of development of pedagogical technologies aimed at preventing conflicts between students, testing according to the method of V. I. Andreev has been used to determine the level of personal proneness to conflict in a team. In order to study the satisfaction of students with the work of a lecturer on the prevention of conflict situations, a questionnaire developed by the authors has been used.
Assessment of gaps in the demand and supply parameters of professional competencies of engineering personnel in digitalization context
Authors: Vasilyeva Z A , Filimonenko I V , Bagdasaryan I S
Published: December 2020

The relevance of the research is determined by the priorities of technological, innovative and digital economy development, which change the needs of business in relation to professional competencies of employees, increase the uncertainty of forecasting the future needs of the economy in labor resources, and increase the supply and demand imbalances in regional labor markets. Based on a comparative analysis of methodological approaches to the analysis and forecast of professional competencies, the article suggests an approach to measuring quantitative and qualitative parameters of gaps in the labor markets of the region. It is proved that the strongest gaps occur in areas with a high concentration of financial and organizational resources that allow achieving significant economic results in the implementation of promising areas of regional development. Based on a step-by-step grouping of professions that are in demand in the labor markets in areas of accelerated development, according to the criteria "vacancy period" and "intensity coefficient per vacancy", professional groups with high levels of gaps are distinguished. Quantitative parameters of gaps are assessed based on comparison of lists of professional competencies acquired in the system of professional education and labor functions, in accordance with professional standards. Qualitative parameters of gaps are set based on a survey of employers. The results of testing the proposed method are presented.
Landsat-based lake distribution and changes in western Alaska permafrost regions between the 1970s and 2010s
Authors: Lindgren Prajna R , Farquharson Louise M , Romanovsky Vladimir E , Grosse Guido
Published: December 2020

Lakes are an important ecosystem component and geomorphological agent in northern high latitudes and it is important to understand how lake initiation, expansion and drainage may change as high latitudes continue to warm. In this study, we utilized Landsat Multispectral Scanner System images from the 1970s (1972, 1974, and 1975) and Operational Land Imager images from the 2010s (2013, 2014, and 2015) to assess broad-scale distribution and changes of lakes larger than 1 ha across the four permafrost zones (continuous, discontinuous, sporadic, and isolated extent) in western Alaska. Across our 68 000 km2 study area, we saw a decline in overall lake coverage across all permafrost zones with the exception of the sporadic permafrost zone. In the continuous permafrost zone lake area declined by −6.7% (−65.3 km2), in the discontinuous permafrost zone by −1.6% (−55.0 km2), in the isolated permafrost zone by −6.9% (−31.5 km2) while lake cover increased by 2.7% (117.2 km2) in the sporadic permafrost zone. Overall, we observed a net drainage of lakes larger than 10 ha in the study region. Partial drainage of these medium to large lakes created an increase in the area covered by small water bodies <10 ha, in the form of remnant lakes and ponds by 7.1% (12.6 km2) in continuous permafrost, 2.5% (15.5 km2) in discontinuous permafrost, 14.4% (74.6 km2) in sporadic permafrost, and 10.4% (17.2 km2) in isolated permafrost. In general, our observations indicate that lake expansion and drainage in western Alaska are occurring in parallel. As the climate continues to warm and permafrost continues to thaw, we expect an increase in the number of drainage events in this region leading to the formation of higher numbers of small remnant lakes.
The impact of blockchain technology on the cost of food traceability supply chain
Authors: Xu Shu , Zhao Xiye , Liu Zhe
Published: December 2020

The establishment of food traceability supply chain is an effective way to solve the problem of food safety. But the cost of operating traditional food traceability supply chain system is high. The enterprise on the chain are not willing to participate, and the data on the chain is easy to falsified, which leads to the existence of food traceability and the lack of consumers’ willingness to buy for it. Based on this, solving the high cost in the technical point has become a feasible meaning. Introducing blockchain technology into food safety traceability can improve brand reputation, maintain market and consumer confidence, improve supply chain management, accelerate product and reduce liability risk. In this paper, from the compatibility of block technology and food traceability supply chain, it is concluded that the introduction of blockchain technology will reduce the transaction cost, quality cost, time cost, activity cost, and supply chain traceability additional cost in the food supply chain cost. By comparing with the application cost of block chain technology, this paper explores the cost control mechanism of food traceability supply chain based on block chain, so as to promote the development of food traceability supply chain. The application of blockchain technology in food traceability supply chain will improve the food traceability supply chain system.
Comparative Study on Different Planting Patterns in Coldterra Japonica Rice Irrigated Areas
Authors: Xuemei Sun , Shiyao Xie , Yan Huang , Yuanyuan Shao
Published: December 2020

A weighing lysimeter is used to study the growth pattern and water consumption characteristics during the growth period of japonica rice with transplanting and direct-sowing planting patterns under controlled irrigation. By comparing yield components, yield and water productivity of japonica rice under different planting patterns, this paper clarifies the growth characteristics and water-consuming law during the growth period of japonica rice under different growing conditions, and contrasts the yield and water productivity of japonica rice with transplanting and direct-sowing planting patterns. The result shows: the tillering stage of japonica rice with direct-sowing planting lags behind that with the transplanting, but the growth compensation effect will be generated. Till the end of the growth period, the tillering and plant height between direct-sowing and transplanting are basically the same. In terms of grain yield, the two indicators including grain number per panicle and 1000-seed weight have a better performance in the YZ, the two indicators including effective panicles and maturing rate have a better performance in the SZB, and these four indicators are unfavorable in the HZB. However, transplanting has a distinct advantage in labor saving and mechanical aspects since it does not require rice seedling growing and transplanting, and rice does not require regreening.
Research on the Performance of Farmers’ Participation in the New Agricultural Management Model
Authors: Li Xia , Li Jing , Yang Bingfang , Liu Yifang
Published: December 2020

Based on the data of the third national agricultural census, this paper makes an empirical analysis on the influencing factors of farmers’ participation in the new agricultural management model. The results show that the willingness of farmers to participate in the new agricultural business model is affected by the gender of the head of household, the education level of the head of household, the number of labor force, the number of computers, the degree of mechanization, whether the agricultural products are sold through e-commerce, whether the agricultural products are certified, whether the farmers’ families are family farms, whether they participate in agricultural insurance, the year-end loan, and the degree of concurrent operation.
The Coupling Relationship Between Economic Poverty Alleviation and Ecological Poverty Alleviation in Concentrated and Contiguous Poverty-stricken Areas: Take Yunnan Province as an Example
Authors: Zhang Yan , Feng Lu
Published: December 2020

The coupling and coordinated development of economic poverty alleviation and ecological poverty alleviation is an important strategy for poverty alleviation development in the new era. It is the basis for achieving the goal that all people get rid of poverty in 2020 and entering a well-off society together. Taking concentrated and contiguous poverty-stricken areas in Yunnan Province of China as the target research objective, the Entropy Method is used to evaluate the performance of economic, social, human settlement and ecological poverty alleviation. Then, the coupling harmonious degree model is selected to explore the correlation, consistency and coordination between economic poverty alleviation and ecological poverty alleviation. The results shows that: (1) The overall poverty alleviation performance is at a low-middle level, and the poverty alleviation performance in Tibetan inhabited area is the only one that ranks in the upper middle level, among the four regions of Yunnan. (2) The degree of coupling in Yunnan and the 4 regions is relatively high, basically in a highly coupled stage, but the degree of coupling harmonious is low, especially in the Wumeng Mountainous area. According to the conclusion, it is proposed to promote regional development and the economic and ecological coupling development through the optimization of the utilization and allocation of poverty alleviation resources, the appropriate tilt of poverty alleviation policies to areas with low performance and coupling harmonious, and the enhancement of the value of ecological services in Tibetan inhabited area.
Network analysis of R&D technology spillovers effect in the Yangtze River Delta Region
Authors: Jiang Guili , Jiao Jianling , Li Jingjing , Sun Chaoping
Published: December 2020

This article evaluates the evolution of inter-city R&D technology spillover in the Yangtze River Delta Region (YRDR) using social network analysis method. Empirical results indicate that the inter-city R&D technology spillovers are sparse, but gradually increasing. Four characteristic cohesive subgroups are formed, subgroup I formed by core cities like Shanghai and Nanjing is the technical sender and the subgroup is closely connected. Nanjing’s role as a network bridge has been replaced by Jiaxing.
Research Status and Trends of Design Driven Sustainable Community — Quantitative Analysis Based on CiteSpace
Authors: Shen Tao , Nagai Yukari , Zhao Jing
Published: December 2020

With the rapid advancements of sustainable design in recent years, the researches of design driven sustainable community are fruitful. Based on WOS database, this study aims to identify the research status and development trends of design driven sustainable community using visualization analysis with CiteSpace. Firstly, this study retrieved published papers (2000–2020) with two topics: sustainable community (communities) and design. Secondly, this study generated country co-authorship networks to identify the contributing of design driven sustainable community at country level. Thirdly, this study analysed the co-occurrence of keywords to find out the research status and hotspot of design driven sustainable community. Finally, this study got the highest keyword-time trends and predicted the developing trends of design driven sustainable community research in the future.
A Discussion on the Realization Path of Rural Reconstruction under the Background of Rural Revitalization—Taking Zhangou Village of Youjun Town in Xichang City as an Example
Authors: Li Lina , Chen Ziyu
Published: December 2020

Based on the background of rural revitalization, taking Zhangou Village of Youjun Town in Xichang city as an example, this paper analyzes the achievements of the village reconstruction under the government resource allocation and the construction of ecological civilization demonstration village. It holds that there are still some problems in rural governance, such as non-standard rural governance, non-obvious characteristics of traditional rural industries, conservative rural civilization and lack of rural construction talents, and puts forward a rural reconstruction strategy with rural talent team construction as the main body and rural space reconstruction, economic and industrial reconstruction, social governance and rural civilization reconstruction as the core means.
Research On Intelligent Reclosing Cooperated By Combined Fault Location Method
Authors: Xia Qiu , Yu Bin , Cao Hong , Xie Min , Wang Xingguo , Zhang Jun , Yu Yang
Published: December 2020

With the rapid development of UHV DC transmission, there is an increasing demand for the construction of AC/DC hybrid systems. Because the AC/DC hybrid system requires high system stability on the AC side, an intelligent reclosing strategy is needed to ensure that the line will not reclose after a permanent fault occurs. Based on the traditional voltage criterion, this paper has proposed a new discriminant that can stably distinguish the fault type to reduce the error judgment range, maintain the stability of the power system and ensure the safe and continuous operation. This paper also did a simulate with the RTDS (Real-time Simulation System) to verify the accuracy and reliability of the new discriminant.
Economic Impact Assessment of the Dual-track Electricity Price System in China
Authors: Ding Weibin , Gao Feng , Xu Yang , Zhu Jia , Hu Jiahua
Published: December 2020

With the continuing advance of electricity market reforms, China is currently in the transition stage from a dual-track electricity price system to a market-based single-track system. The new electricity price system, which is based on market transaction electricity prices and transmission and distribution prices; and the original electricity price system, which is based on the feed-in tariffs price and catalog electricity prices, are dual-track operation. Based on the evolution path of China’s macro development, this paper clarifies the connotation and settlement mechanism of China’s dual-track electricity price system and discusses the differences and connections between the dual-track system settlement, planned settlement, and market-based settlement. Then, by adopting an adjusted Computable General Equilibrium (CGE) model, this paper quantitatively evaluates the economic and social benefits of the dual-track electricity price system. Based on these results, this paper further analyses the subsequent challenges and countermeasures of the transition from the dual-track electricity price system to the market-oriented price system.