theoretical development
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A. E. Guskov ◽  
N. A. Mazov ◽  
V. N. Gureev ◽  
K. S. Borgoyakova

The authors review the papers delivered at the Third Scientific Conference “Scientometrics, bibliometrics, open data and publications in science” held within the framework of the Sixth World Professional Forum “The Book. Culture. Education. Innovations” (“Crimea–2021”) (June 5–13, 2021, Republic of Crimea, Russian Federation). The Conference key topics discussed at its three sessions were: trends in sci-tech development, scientometric studies of scientific periodicals, as well as case studies and regional research through scientometric tools. The hot topics in Russian scientometrics are specified, including applied studies of bibliometric analysis for assessment of researchers, organizations, countries and journals, as well as of science migration streams, and theoretical development of new indicators of or search for scientometric frontiers. Within the practical part of the conference, The Basics of Bibliometrics crash course was offered to the participants. It comprised essential knowledge, competences and skills of work with science citation databases. The need for the more intensive exchange of knowledge within the Russian emerging scientometrics community to expand competences, to strengthen communication between those assessing and being assessed is substantiated. These would contribute not only scientometrics but the Russian science on the whole.

2022 ◽  
Taofiq O Amoloye

Abstract The motion of fluids presents interesting phenomena including flow separation, wakes, turbulence etc. The physics of these are enshrined in the continuity equation and the NSE. Therefore, their studies are important in mathematics and physics. They also have engineering applications. These studies can either be carried out experimentally, numerically, or theoretically. Theoretical studies using classical potential theory (CPT) have some gaps when compared to experiments. The present publication is part of a series introducing refined potential (RPT) that bridges these gaps. It leverages experimental observations, physical deductions and the match between CPT and experimentally observed flows in the theoretical development. It analytically imitates the numerical source/vortex panel method to describe how wall bounded eddies in a three-dimensional cylinder crossflow are linked to the detached wake eddies. Unlike discrete and arbitrary vortices/sources on the cylinder surface whose strengths are numerically determined in the panel method, the vortices/sources/sinks in RPT are mutually concentric and continuously distributed on the cylinder surface. Their strengths are analytically determined from CPT using physical deductions starting from Reynolds number dependence. This study results in the incompressible Kwasu function which is a Eulerian velocity potential/stream function that captures vorticity, boundary layer, shed wake vortices, three-dimensional effects, and turbulence. This Eulerian Kwasu function also theorizes streaklines. The Lagrangian form of the function is further exploited to obtain flow pathlines.

2022 ◽  
pp. 108886832110670
Oliver Huxhold ◽  
Katherine L. Fiori ◽  
Tim Windsor

Empirical evidence about the development of social relationships across adulthood into late life continues to accumulate, but theoretical development has lagged behind. The Differential Investment of Resources (DIRe) model integrates these empirical advances. The model defines the investment of time and energy into social ties varying in terms of emotional closeness and kinship as the core mechanism explaining the formation and maintenance of social networks. Individual characteristics, acting as capacities, motivations, and skills, determine the amount, direction, and efficacy of the investment. The context (e.g., the living situation) affects the social opportunity structure, the amount of time and energy available, and individual characteristics. Finally, the model describes two feedback loops: (a) social capital affecting the individual’s living situation and (b) different types of ties impacting individual characteristics via social exchanges, social influences, and social evaluations. The proposed model will provide a theoretical basis for future research and hypothesis testing.

Eugenia Tsarkova ◽  
Aleksandr Antonovskiy

Based on the analysis of Russian literature, the article considers e-learning as a modern format of educational activity, as a modern pedagogical technology. The role of digital transformation of education is emphasized, which involves constant updating of the content of education and planned learning outcomes, methods, means and control of educational activities in a dynamically developing digital information and educational environment. The use of new types of educational activities based on the interpenetration of already traditional teaching models and modern digital technologies contributes to the quality training of students. Taking into account the prevailing factors, the most effective in this regard is the creation and use of educational e-courses, the active introduction of e-learning into the professional training of specialists. The implementation of educational activities based on e-learning is accompanied by a specially created information and educational environment, which takes over the provision of training through the use of information and communication technologies, network services for the development of educational programs. Electronic educational resources are presented in electronic form and include a certain structure, the main subject content and output data. Thanks to electronic resources, information interaction between participants in educational relations is ensured, the quality of formed competencies and the knowledge of information culture among students increases. The active introduction of e-learning requires not only the psychological and professional preparedness of all participants in the educational distance learning process, but also its theoretical development and methodological support. The development of e-learning stimulates the need for the formation of professional competencies among teachers for successful activities in the electronic information and educational environment. Electronic educational technologies make it possible to complement and expand existing forms of educational communication, and in this sense, the use of e-learning in education today is not only the use of information technologies and digital solutions in the interaction of the teacher and students, but also defines a new format of teaching.

Wissam Dehina ◽  
Mohamed Boumehraz ◽  
Wissam Dehina ◽  
Frédéric Kratz

Purpose The purpose of this paper is to propose applications of advanced signal-processing techniques for the diagnosis and detection of rotor fault in an induction machine. Two techniques are used: spectral analysis techniques and time frequency techniques for the diagnosis of an electrical machine. One is based on the power spectral density estimation techniques, such as periodogram and Welch periodogram. The second method is based on Hilbert transform (HT) to extract the envelope for the stator current. Then, this signal is processed via discrete wavelet transform (DWT) for determining the faulty components in the spectrum of the stator current envelope and identifying the eigenvalues of energies (HDWT). Design/methodology/approach First, this paper focused on theoretical development and a comparative study of these signal-processing techniques, which are based on the periodogram, Welch periodogram, HT and the DWT to extract the envelope for the stator current; it is used to compute the energy stored in each decomposition level obtained by the stator current envelope (HDWT). Moreover, the Welch periodogram is applied to obtain the envelope spectrum. Findings The simulation obtained and the experimental validation results of the proposed methods through MATLAB environment show the effectiveness of the proposed approaches with a good accuracy by power spectral density estimation techniques (periodogram and Welch periodogram). Moreover, the faults are manifested through the appearance of new frequencies components, as well as the envelope for the stator current (HT and DWT). This approach is effective for non-stationary and stationary signal to extract useful information for the detection of broken bar fault. Originality/value The current paper proposes a new diagnosis method for the detection and characterization of broken rotor bars defects early; it is founded primarily on theoretical development, and the comparison is based on the power spectral density technique (periodogram and Welch periodogram) and the computation of the energy stored in each decomposition level (precisely the HT and DWT). Moreover, the Welch periodogram is applied to obtain the envelope spectrum. The main advantages of the proposed techniques increase their reliability and availability.

2022 ◽  
pp. 434-452
Hanna Dreyer ◽  
Martin George Wynn ◽  
Robin Bown

Many factors determine the success of software development projects. The exchange and harnessing of specialized knowledge amongst and between the project team members is one of these. To explore this situation, an ethnographic case study of the product-testing phase of a new human resources management system was undertaken. Extempore verbal exchanges occur through the interplay of project team members in weekly meetings, as the software was tested, analyzed, and altered in accordance with the customer's needs. Utilizing tacit knowledge from the project members as well as the group, new tacit knowledge surfaces and spirals, which allows it to build over time. Five extempore triggers surfaced during the research generated through explicit stimuli, allowing project members to share and create new knowledge. The theoretical development places these learning triggers in an interpretive framework, which could add value to other software development and project management contexts.

2022 ◽  
Vol 23 (1) ◽  

ABSTRACT Purpose: This article investigates and classifies firm resources for the internationalization of small and medium enterprises (SMEs) from emerging countries. Originality/value: SMEs from emerging countries in global markets evidence their more restricted access to resources for internationalization. The mainstream international business literature classifies firm’s resources identified in large companies from developed economies. This research classifies firms’ internationalization resources located in different emerging countries based on a systematic literature review (SLR) and interviews. This paper contributes to the theoretical development about the internationalization of SMEs from emerging countries, indicating the importance of organizational resources in this process. Design/methodology/approach: This paper presents an exploratory research developed in two stages: a SLR on emerging countries and interviews with experts, institutions, and SMEs about the Brazilian context. Bibliographic research and an interview with semi-structured script were adopted as data collection techniques. Interviews were analyzed with NVivo software using content analysis technique and providing categorization of resources. Findings: Up to 2016, 15 works mentioned resources for the internationalization of SMEs from emerging countries and seven were done in Asia. We identified 72 resources in ten emerging countries. Organizational resources predominate. The use of financial resources in Brazil contradicts the trend in other emerging countries. More tangible resources seem less strategic for SMEs’ internationalization from emerging countries when compared to more intangible resources, as organizational ones.

2022 ◽  
pp. 565-583
Hanna Dreyer ◽  
Gerald Robin Bown ◽  
Martin George Wynn

Specialised knowledge is a key component of success in an organisational context that resides in the expertise of the organisation's personnel. To explore this situation, an ethnographic case study was chosen in which data was collected from a software development project. Extempore verbal exchanges occur through the interplay of project team members in weekly meetings, as the software was tested, analyzed, and altered in accordance with the customer's needs. Utilizing tacit knowledge from the project members as well as the group, new tacit knowledge surfaces and spirals, which allows it to build over time. Five extempore triggers surfaced during the research generated through explicit stimuli, allowing project members to share and create new knowledge. Through the use of ideas developed by Husserl and Heidegger, this study has cast some light on verbal exchanges that, through their interjection, allow significant learning to take place. The theoretical development places these learning triggers in an interpretive framework, which can add value to other software development projects.

2021 ◽  
Vol 68 (68.04) ◽  
pp. 158-161
Kalina Micheva-Peycheva

M. Tsibranska-Kostova's research presents to the scientific – philological, legal, historical – community an interesting Middle Bulgarian monument – Procheiron. The work contains a precise theoretical development devoted to legal terms, publication and translation of the manuscript, as well as a dictionary developed according to the principles of modern lexicography.

Md. Touhidul Islam ◽  
Md. Nahid Hassan

Denim was produced in the city of Nîmes in France and was originally called the serge de Nîmes. The word denim is an English colloquialism of the French term: “denim.” Day by day Bangladesh denim sector very much developed and helps to increase productivity. Bangladesh have seen a significant increase in investing in denim fabric manufacturing, increasing the country’s production performance by reducing fabric dependence on imports. It is important due to its aspects of durability, and not easily torn which benefited physical laborers much. The government also plays a vital role in denim textile industry. This paper shows different section of denim textile industry such as: sewing section, cutting section, washing, IE and finishing department. The main aim of this paper is how to role all the section of denim textile industry. Textile education is insufficient without industry attachment, which bridges the gap between theoretical and practical aspects and acclimates students to the industrial world. We can gain about theoretical development on an industrial level from this attachment. We can understand more about the machines used in various departments, their technical specifications, characteristics, operating system, and so on, and we believe that without this type of industrial connection, it is impossible to obtain industry-based information about textile engineering adequately. The Industrial Attachment on Denim Manufacturing Technology was used to organize this study (sewing section, cutting, IE, washing section, CAD Section, and finishing department. Various operating procedures for the production of denim in the industry are presented in this paper. The technique and process of several procedures and processes are presented here such as machine specifications, manpower, maintenance, layout of the different section, dye processes and wet processes.

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