1 December 30, 2025
Articles
1. Ho Viet Bun, Trinh Quyet Thang, Nhu Y Do
Study on the Influence of Converters on Current in Mine Electrical Network: A Case Study of a Mine in Vietnam
European Journal of Technology and Design. 2025. 13(1): 3-8.
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2. Irina A. DubchakEuropean Journal of Technology and Design. 2025. 13(1): 3-8.
Abstract:
Inverters, soft starts, and power converters are all common in Vietnam's mining industry today. The usage of these devices in the mine electrical network produces other current components with frequencies other than 50Hz, which have undesired repercussions during operation. The results for the leakage current of the electrical network show that at the time of leakage before the inverter, the leakage current of the electrical network increases with a pulse coefficient kxk = 2.2 times and the current after the inverter fluctuates strongly and takes about 0.2s to return to zero, which leads to the mistaken operation of the leakage protection relay in the mine electrical network. The research results provide the basis for calculating and selecting appropriate electrical equipment to improve safety in underground mining.
Inverters, soft starts, and power converters are all common in Vietnam's mining industry today. The usage of these devices in the mine electrical network produces other current components with frequencies other than 50Hz, which have undesired repercussions during operation. The results for the leakage current of the electrical network show that at the time of leakage before the inverter, the leakage current of the electrical network increases with a pulse coefficient kxk = 2.2 times and the current after the inverter fluctuates strongly and takes about 0.2s to return to zero, which leads to the mistaken operation of the leakage protection relay in the mine electrical network. The research results provide the basis for calculating and selecting appropriate electrical equipment to improve safety in underground mining.
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Spatial Knowledge Models
European Journal of Technology and Design. 2025. 13(1): 9-14.
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3. Slaveyko G. GospodinovEuropean Journal of Technology and Design. 2025. 13(1): 9-14.
Abstract:
The article explores the field of computer science and geoinformatics, which apply and process spatial information. Spatial information serves as the basis for obtaining spatial knowledge models. A general knowledge model is an ontology. When using spatial information, a spatial ontology serves as a knowledge model. Spatial ontologies, which are models of spatial knowledge, are considered. Spatial ontologies are created using spatial knowledge models. The taxonomy of ontologies is shown. A dictionary ontology is described as a basic ontology, which is used in the construction of complex ontologies. The concept of ontological information units is introduced. The content of descriptive logic is revealed. The significance of an information field as a unifying information model is shown. Examples of a spatial descriptor are given. A mechanism for obtaining spatial ontologies based on spatial conceptual blending is considered. Conceptual blending in geoinformatics is a transfer of the ideas of conceptual blending from psychology. The significance of spatial relations for the formation of spatial ontologies is shown. An example of a spatial ontology might be the result of conceptual blending or an electronic map. Generally, these models may or may not be ontologies. The conditions for transforming spatial models into ontologies are given. It is shown that a spatial model is an ontology if it contains knowledge. A formal description of spatial composition and cartographic composition is provided.
The article explores the field of computer science and geoinformatics, which apply and process spatial information. Spatial information serves as the basis for obtaining spatial knowledge models. A general knowledge model is an ontology. When using spatial information, a spatial ontology serves as a knowledge model. Spatial ontologies, which are models of spatial knowledge, are considered. Spatial ontologies are created using spatial knowledge models. The taxonomy of ontologies is shown. A dictionary ontology is described as a basic ontology, which is used in the construction of complex ontologies. The concept of ontological information units is introduced. The content of descriptive logic is revealed. The significance of an information field as a unifying information model is shown. Examples of a spatial descriptor are given. A mechanism for obtaining spatial ontologies based on spatial conceptual blending is considered. Conceptual blending in geoinformatics is a transfer of the ideas of conceptual blending from psychology. The significance of spatial relations for the formation of spatial ontologies is shown. An example of a spatial ontology might be the result of conceptual blending or an electronic map. Generally, these models may or may not be ontologies. The conditions for transforming spatial models into ontologies are given. It is shown that a spatial model is an ontology if it contains knowledge. A formal description of spatial composition and cartographic composition is provided.
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Uncertainty of Information and Cyber-Physical Space
European Journal of Technology and Design. 2025. 13(1): 15-20.
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4. Philip R. Langardorov, Olga M. PerminovaEuropean Journal of Technology and Design. 2025. 13(1): 15-20.
Abstract:
The article explores the uncertainty of information space and cyber-physical space. The content of information space and cyberspace is revealed. A new point of view on information space is given. The difference between parametric information spaces and physical information spaces is described. The importance of spatial information in modern society and business is noted. Four types of different information spaces are identified. Virtual space is considered as one of the types of information space. The coordinate system is considered as one of the types of information space. The main purposes of information space are revealed. The analysis of information space shows the objective existence of information uncertainty in it. The reasons for the emergence of uncertainty in information space are shown. The relationship between the information field and information space is noted. The difference between these entities is shown. The importance of spatial relations as a prerequisite and as a factor of uncertainty in information space is noted. The relationship between information space and cyber-physical space is substantiated. The main function of information space is semantics or content. The main function of cyberspace is communication and management. The content of several types of cyberspace is revealed. Social cyberspace is highlighted. The article introduces the concept of partial information uncertainty. Particular information uncertainty characterizes an object, a process, and a situation. The existence of cognitive uncertainty is noted. The content of morphological uncertainty and semantic uncertainty is revealed. The article introduces the concept of spatial uncertainty. The concept of field uncertainty is introduced as a mass uncertainty characteristic of all objects in a given part of the information field or part of the information space. A taxonomy of factors influencing the emergence of uncertainty is provided.
The article explores the uncertainty of information space and cyber-physical space. The content of information space and cyberspace is revealed. A new point of view on information space is given. The difference between parametric information spaces and physical information spaces is described. The importance of spatial information in modern society and business is noted. Four types of different information spaces are identified. Virtual space is considered as one of the types of information space. The coordinate system is considered as one of the types of information space. The main purposes of information space are revealed. The analysis of information space shows the objective existence of information uncertainty in it. The reasons for the emergence of uncertainty in information space are shown. The relationship between the information field and information space is noted. The difference between these entities is shown. The importance of spatial relations as a prerequisite and as a factor of uncertainty in information space is noted. The relationship between information space and cyber-physical space is substantiated. The main function of information space is semantics or content. The main function of cyberspace is communication and management. The content of several types of cyberspace is revealed. Social cyberspace is highlighted. The article introduces the concept of partial information uncertainty. Particular information uncertainty characterizes an object, a process, and a situation. The existence of cognitive uncertainty is noted. The content of morphological uncertainty and semantic uncertainty is revealed. The article introduces the concept of spatial uncertainty. The concept of field uncertainty is introduced as a mass uncertainty characteristic of all objects in a given part of the information field or part of the information space. A taxonomy of factors influencing the emergence of uncertainty is provided.
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Analysis of Data Visualization Tools Application
European Journal of Technology and Design. 2025. 13(1): 21-26.
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5. Viktor Ya. TsvetkovEuropean Journal of Technology and Design. 2025. 13(1): 21-26.
Abstract:
The article studies the application of analytical data visualization tools to support management decisions in the company based on the literary analysis and expert survey. A comparative analysis of visualization tools is carried out according to the criteria of convenience for analysts and management, the possibilities of interactive analysis and adaptation to specific tasks of business informatics. It has been demonstrated that the use of modern data visualization tools in business analytics allows organizations to enhance the transparency of business processes, optimize the decision-making cycle, and improve the efficiency of information resource use. Taken together, this is seen as an important factor in strengthening a company's competitive position and increasing the effectiveness of its digital transformation strategy.
The article studies the application of analytical data visualization tools to support management decisions in the company based on the literary analysis and expert survey. A comparative analysis of visualization tools is carried out according to the criteria of convenience for analysts and management, the possibilities of interactive analysis and adaptation to specific tasks of business informatics. It has been demonstrated that the use of modern data visualization tools in business analytics allows organizations to enhance the transparency of business processes, optimize the decision-making cycle, and improve the efficiency of information resource use. Taken together, this is seen as an important factor in strengthening a company's competitive position and increasing the effectiveness of its digital transformation strategy.
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Development of Dynamic Geoinformatics
European Journal of Technology and Design. 2025. 13(1): 27-32.
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European Journal of Technology and Design. 2025. 13(1): 27-32.
Abstract:
The article explores a new direction in geoinformatics – dynamic geoinformatics. The diversity of spatial data and temporal problems motivates the differentiation of applied geoinformatics. Dynamic geoinformatics is a development of applied geoinformatics and studies a special area of dynamic processes and dynamic states. The article shows the place of dynamic geoinformatics in the system of sciences. The structure of dynamic geoinformatics is studied. The significance of two types of monitoring in dynamic geoinformatics is shown. Dynamic geoinformatics uses a system of models and a system of technologies. The main theory of dynamic geoinformatics is spatial and temporal analysis. It includes the study of information uncertainty. An important technology of dynamic geoinformatics is geoinformation monitoring. It includes state monitoring and process monitoring. These types of monitoring allow the formation of models in three-dimensional and analytical form. Models facilitate decision-making and compress information in conditions of large volumes. The main theoretical direction of research in dynamic geoinformatics is associated with the study of spatio-temporal processes and the identification of functional dependencies in a spatial environment. The information field and information space are used as auxiliary models in dynamic geoinformatics. The primary goal of dynamic geoinformatics is to generate new knowledge. Dynamic geoinformatics is applied in high-speed and intelligent transport. It is essential for unmanned transport systems.
The article explores a new direction in geoinformatics – dynamic geoinformatics. The diversity of spatial data and temporal problems motivates the differentiation of applied geoinformatics. Dynamic geoinformatics is a development of applied geoinformatics and studies a special area of dynamic processes and dynamic states. The article shows the place of dynamic geoinformatics in the system of sciences. The structure of dynamic geoinformatics is studied. The significance of two types of monitoring in dynamic geoinformatics is shown. Dynamic geoinformatics uses a system of models and a system of technologies. The main theory of dynamic geoinformatics is spatial and temporal analysis. It includes the study of information uncertainty. An important technology of dynamic geoinformatics is geoinformation monitoring. It includes state monitoring and process monitoring. These types of monitoring allow the formation of models in three-dimensional and analytical form. Models facilitate decision-making and compress information in conditions of large volumes. The main theoretical direction of research in dynamic geoinformatics is associated with the study of spatio-temporal processes and the identification of functional dependencies in a spatial environment. The information field and information space are used as auxiliary models in dynamic geoinformatics. The primary goal of dynamic geoinformatics is to generate new knowledge. Dynamic geoinformatics is applied in high-speed and intelligent transport. It is essential for unmanned transport systems.
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Letters to the Editorial Board
6. Ilya D. Redchenko, Olga A. Elagina
Improvement of the Process of Monitoring the Condition of Technological Equipment
European Journal of Technology and Design. 2025. 13(1): 33-39.
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7. Jerin Sreejesh, AlJasim, Abu Thahir, Jose K JacobEuropean Journal of Technology and Design. 2025. 13(1): 33-39.
Abstract:
In the context of industrial digital modernization, upgrading approaches to monitoring the condition of technical units becomes crucial for enhancing the resilience and efficiency of industrial enterprises. The use of intelligent analytical systems and industrial internet of things technologies is particularly relevant, where the timeliness and completeness of information directly determine the possibilities for preventing emergencies and rational allocation of maintenance resources. The implementation of innovative monitoring tools allows for the restructuring of maintenance processes, reduction of labor costs, and minimization of the likelihood of unplanned shutdowns. This paper analyzes the main benefits of modernizing monitoring systems, including increased productivity, extended intervals between repairs, and improved stability of production operations. Special attention is paid to the difficulties faced by domestic enterprises in implementing such projects: significant initial investments, the need for personnel retraining, compatibility issues with existing control systems, and threats in the field of information security. Based on the study of Russian experience and research data, practical recommendations are formulated for the successful updating of monitoring processes. The material is of interest to specialists in production asset management, IT experts, and managers interested in strengthening the operational resilience of industrial facilities.
In the context of industrial digital modernization, upgrading approaches to monitoring the condition of technical units becomes crucial for enhancing the resilience and efficiency of industrial enterprises. The use of intelligent analytical systems and industrial internet of things technologies is particularly relevant, where the timeliness and completeness of information directly determine the possibilities for preventing emergencies and rational allocation of maintenance resources. The implementation of innovative monitoring tools allows for the restructuring of maintenance processes, reduction of labor costs, and minimization of the likelihood of unplanned shutdowns. This paper analyzes the main benefits of modernizing monitoring systems, including increased productivity, extended intervals between repairs, and improved stability of production operations. Special attention is paid to the difficulties faced by domestic enterprises in implementing such projects: significant initial investments, the need for personnel retraining, compatibility issues with existing control systems, and threats in the field of information security. Based on the study of Russian experience and research data, practical recommendations are formulated for the successful updating of monitoring processes. The material is of interest to specialists in production asset management, IT experts, and managers interested in strengthening the operational resilience of industrial facilities.
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A Review on the Design, Fabrication, and Analysis of Exoskeletons: Industrial, Medical, and Safety Perspectives
European Journal of Technology and Design. 2025. 13(1): 40-42.
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8. European Journal of Technology and Design. 2025. 13(1): 40-42.
Abstract:
Exoskeletons are wearable robotic devices intended to augment or restore human function in industrial, medical, and safety-critical contexts. To address editorial requests, this revised review replaces generic language with evidence-based statements and integrates ten references with in-text citations. Drawing on recent laboratory and field studies, we summarize design choices, actuation and control, safety and compliance, and practical evaluation. For industrial applications, passive shoulder exoskeletons consistently reduce deltoid/trapezius activity during overhead work; effects are task-specific below shoulder height. In rehabilitation, trajectory-tracking accuracy within a few degrees is achievable with appropriate sensing and impedance control. We conclude with implementation guidance that emphasizes task selection, assistance tuning, and risk management.
Exoskeletons are wearable robotic devices intended to augment or restore human function in industrial, medical, and safety-critical contexts. To address editorial requests, this revised review replaces generic language with evidence-based statements and integrates ten references with in-text citations. Drawing on recent laboratory and field studies, we summarize design choices, actuation and control, safety and compliance, and practical evaluation. For industrial applications, passive shoulder exoskeletons consistently reduce deltoid/trapezius activity during overhead work; effects are task-specific below shoulder height. In rehabilitation, trajectory-tracking accuracy within a few degrees is achievable with appropriate sensing and impedance control. We conclude with implementation guidance that emphasizes task selection, assistance tuning, and risk management.
Number of views: 2 Download in PDF