Information and communication technologies in recent decades have become a factor which predeterm... more Information and communication technologies in recent decades have become a factor which predetermines the development and organization of education, industry but also society as a whole. Education in the Information Society offers new content and organization, which requires radical changes in the learning process. Development of training programs training modules on general purpose technical disciplines necessary for better absorption of interdisciplinary theoretical and practical knowledge. The use of software modules creates a prerequisite for algorithmic thinking quickly making independent design decisions in practical realization of future technicians.
Increasing the productivity of machine tractor units when cultivating the field is achieved by re... more Increasing the productivity of machine tractor units when cultivating the field is achieved by reducing the work time, which usually relates to seeking the shortest path of the unit in the field. Reducing the length of headland turns, which account for the largest proportion of the unit non-working moves, will result in higher productivity as well as less soil compaction in the headland. The article presents an algorithm for selection of a turn in the headland of a field of irregular shape. Existing theoretical correlations have been used to determine the length of the non-working move and the headland width when making T-turns. The selection of a turn is made on the basis of the minimum length of the non-working move, after which the width of the needed headland for the selected turn is calculated. This algorithm can be added to the on-board computer of the unit thus providing a more efficient way of moving, automatically generating a headland and following the trajectory of the se...
This paper proposes methods and tools for determining plant pigments using data from a mobile pho... more This paper proposes methods and tools for determining plant pigments using data from a mobile phone video sensor. A disadvantage of the known studies in this field is that they are mainly aimed at determining the chlorophyll content. There are few studies related to the determination of pigments such as carotenoids, flavonoids, and betalains, which are also important in terms of determining the condition of plants in their cultivation. Cucumbers were chosen because the long periods of drought in Bulgaria, lead to losses in cultivating these plants. Vectors containing colour and spectral indices were used. These features are obtained through a video sensor on a mobile phone. The kernel method variant of principal components reduces them. Feature vectors are selected using factor analysis, correspondence analysis, and the correlation method. Predictive models have been developed to determine plant pigments. With high accuracy (over 90%), the pigments xanthophyll and chlorophyll A can ...
The aim of the research is to improve the public’s assessment and understanding of the cultural v... more The aim of the research is to improve the public’s assessment and understanding of the cultural values and history of Bulgaria. The main issues related to the sustainable use of elements of the cultural heritage are defined, and the accessible literary sources related to the digitization of the folklore heritage are reviewed. Shape indices, color, and textural characteristics were obtained from digital color images of the elements of Bulgarian folk costumes. The most informative indices of these features were selected. A kernel variant of the principal component analysis (kPCA) method was used to reduce the data volume of the feature vector. A Naïve Bayes classifier, discriminant analysis, and the support vector method (SVM) were used for classification. The classification accuracy was assessed. In the analysis of the decorative elements of Bulgarian costumes, it was found that the accuracy of classification depended both on the method for reducing the volume of data and on the sepa...
Air pollution and travel comfort in public transport is a significant problem as it can cause hea... more Air pollution and travel comfort in public transport is a significant problem as it can cause health problems for passengers. There are no sufficiently developed and researched monitoring systems for measuring the quality of the environment in public transport, which makes it difficult to assess the extent of the problem and implement effective solutions. This study presents the results of measurements made with a developed system for assessing air pollution and environmental quality in urban transport. Two time periods were defined based on air pollution and traffic levels, and informational features were selected for bus stops and buses. Noise was found not to be an informative feature, but vehicle acceleration should be considered in environmental quality monitoring. A quadratic discriminant classifier combined with principal components was shown to accurately classify high and low pollution time periods. Further research is planned to investigate the relationship between air pol...
Proceedings of the 21st International Conference on Computer Systems and Technologies
In this paper a vision of the university of the future is introduced. The vision summarizes ideas... more In this paper a vision of the university of the future is introduced. The vision summarizes ideas and concepts that come as a result of long-term research and experience of the Centre of Innovative Educational Technologies at the University of Ruse. The vision outlines the evolution of the higher education as well as the roles and the future development of the physical against the virtual university and the traditional against the distance education. The new emerging skills of the academic staff are also discussed.
The introduction of the today's information and communications technology in the education is... more The introduction of the today's information and communications technology in the education is one of the possible solutions of the problem with digital generation's decreasing affinity to education. The main reason is that the new generation is so close attached to the new technology. The purpose of this paper is to present the possibilities of web-based system for the sharing of content and collaboration in the Higher education, as well as to present a best practice in the using of this system in the
IOP Conference Series: Materials Science and Engineering, 2021
Augmented reality is a modern technology that can be used in universities, providing conditions f... more Augmented reality is a modern technology that can be used in universities, providing conditions for learning in an interactive virtual environment and achieving a high level of visualization through the means preferred by today’s digital students. AR creates conditions for easier and more accessible studying of the taught material, acquiring more knowledge in a short time, developing creative thinking of the students. AR application can increase the quality of education. In the engineering disciplines is of great importance to view the studied objects from all sides. Instead of multiple 2D images, in the textbooks could be used markers for generating AR with an interactive 3D models, providing full visualization. Students can use their mobile devices for 3D visualization of the considered objects, which makes AR easily accessible. The aim of the research is to develop topics from a textbook on “Design and modelling of women’s dresses in different silhouettes” for students majoring i...
IOP Conference Series: Materials Science and Engineering, 2021
With the development of technology in recent years, it is clear that the potential in traditional... more With the development of technology in recent years, it is clear that the potential in traditional networks has been exhausted. Software defined network (SDN) is emerging network, which provides a global centralized view, separating the control plane from the data plane. This article discusses the potential for determining the optimal latency in SDN networks with capital cost optimization-CapEx. A mathematical formulation for solving the problem is considered. Following this approach will speed up routing and improve QoS.
The rapid development of science, technology, and information technologies in various sectors of ... more The rapid development of science, technology, and information technologies in various sectors of the economy imposes increased requirements and expectations in the preparation of engineering professionals in higher education. In recent years, there have been some difficulties in engineering and technology training related to the assimilation of the methodology for constructive thinking, the development of clear and precise knowledge structuring, improvement of the ability of expressing thoughts, and graphical presentation of information.This article presents some applications and best practices in the use of e-learning systems, interactive boards, and accessories. The application of active teaching methods and use of information technologies with interactive tools, providing active involvement of the students in training, leads to considerable interest and improvement in the quality of teaching and learning.
A virtual learning environment has been created using Moodle software platform and has been appli... more A virtual learning environment has been created using Moodle software platform and has been applied in Technical College of Yambol. Multimedia courses have been created as well. In our paper we give the assessments of the requirements for the teachers regarding implementation of high quality open and distance learning process. Using interactive whiteboards and possibilities for the teachers to record their instruction and post the material on-line is a good opportunity for realizing ODL-process. The paper presents possibilities for using interactive whiteboards as an educational tool and their application into the practice. The experience and perspectives of their use in educational process at the Technical College of Yambol is shown. Key words: ODL process, virtual learning environment, interactive whiteboards, requirements to teachers. INTRODUCTION The term open and distance learning (ODL) and its definition are relatively new in the field of education, having gained prominence on...
Virtual learning becomes an important task for academic institutions. In Technical College of Yam... more Virtual learning becomes an important task for academic institutions. In Technical College of Yambol the virtual learning environment (VLE) has been created using Moodle software platform and has been introduced into the practice. Multimedia courses have been created in different disciplines. Using interactive whiteboards and possibilities teachers to record their instruction and post the material for review by students at a later time is a good opportunity to overcome the main student's problems and reducing the rate of drop off as well as improving the quality of ODL-process by creating interactive ODL-modules. Key words: ODL process, virtual learning environment, interactive whiteboards. INTRODUCTION Analyzing the ODL process and its evolution over the last few years we can conclude that recently more attention has been paid to the pedagogical issues, trying to define how the use of technologies should be seen within a wider field of teaching experiences based on innovative m...
The design and implementation of a measuring device for the determination of pigment content in p... more The design and implementation of a measuring device for the determination of pigment content in plant leaves is a topic of essential importance in plant biology, agriculture, and environmental research. The timely and sufficiently accurate determination of the content of these molecules provides valuable insight into the health, photosynthetic activity, and physiological state of plants. This paper presents the key aspects and results of the development and implementation of such a measuring device. It makes it possible to measure a larger number of pigments per type compared with the devices for commercial use that are currently known to us, and the accuracy of measurements depends mostly on the specific type of plant that is being tracked. The developed device presents a measurement accuracy ranging between 72% and 97% compared with a reference method and between 87% and 90% compared with a reference technique. Also, by using the device, a significant reduction in time and require...
Building modern Internet of Things (IoT) systems is associated with a number of challenges. One o... more Building modern Internet of Things (IoT) systems is associated with a number of challenges. One of the most significant among them is the need for wireless technology, which will serve to build connectivity between the individual components of this technology. In the larger cities of Bulgaria, measures to ensure low levels of harmful emissions, reduce noise levels, and ensure comfort in urban environments have been taken. LoRa technology shows more advantages in transmission distance and low energy consumption compared to other technologies. That is why this technology was chosen for the design of wireless sensor networks (WSN) for six cities in Bulgaria. These networks have the potential to be used in IoT configurations. Appropriate modules and devices for building WSN for cities in Bulgaria have been selected. It has been found that the greater number of nodes in the WSN leads to an increase in the average power consumed in the network. On the other hand, depending on the location...
Applied Researches in Technics, Technologies and Education, 2018
The stormy development of technologies today gives its influence in the field of education. In th... more The stormy development of technologies today gives its influence in the field of education. In the high and higher education the technology connected students of the digital generation are ready and wait the information and communication technologies to be included not only in their everyday life but in the process of education too. The article analyzes the Augmented Reality (AR) and its possibilities about development of training materials and its implementation in the higher education. The technological aspects in developing interactive educational content with added reality and different uses of this modern technology are studied. The development of training materials which correspond to the visually kinetic style of learning of students from the digital generation is the main aim of the use of AR in thee higher education. The paper presents specific possibilities for apply of AR in education in the fields of Mechanical and Fashion Engineering in the Faculty of Technics and Techn...
One of the challenges to higher education nowadays is to adapt to the learning style, preferences... more One of the challenges to higher education nowadays is to adapt to the learning style, preferences and demands of the Digital generation. To achieve this goal, the educational process should extend beyond the university auditorium and to find a place in the social network where the digital students are most active. The modern ICT should also become an integral part of the administrative and educational activities at the University. In this paper is discussed the role of social networking in higher education, as well as the possibilities for teaching and learning in social WEB. A survey about students' attitudes to the use of social networks and cloud computing in higher education is conducted and an analysis of the survey results is also provided.
This report examines and analyzes the possibilities of using document cameras in the learning pro... more This report examines and analyzes the possibilities of using document cameras in the learning process, their use as a tool for visualization in the auditoriums, laboratories and universities as tools for increasing the interest and activity of students. An overview of the possibilities of using Web-cameras as document cameras is made as well. The advantages and disadvantages in the application of these devices primarily as a learning tool are represented by analysis, which compares the key parameters of the document cameras and webcams
Information and communication technologies in recent decades have become a factor which predeterm... more Information and communication technologies in recent decades have become a factor which predetermines the development and organization of education, industry but also society as a whole. Education in the Information Society offers new content and organization, which requires radical changes in the learning process. Development of training programs training modules on general purpose technical disciplines necessary for better absorption of interdisciplinary theoretical and practical knowledge. The use of software modules creates a prerequisite for algorithmic thinking quickly making independent design decisions in practical realization of future technicians.
Increasing the productivity of machine tractor units when cultivating the field is achieved by re... more Increasing the productivity of machine tractor units when cultivating the field is achieved by reducing the work time, which usually relates to seeking the shortest path of the unit in the field. Reducing the length of headland turns, which account for the largest proportion of the unit non-working moves, will result in higher productivity as well as less soil compaction in the headland. The article presents an algorithm for selection of a turn in the headland of a field of irregular shape. Existing theoretical correlations have been used to determine the length of the non-working move and the headland width when making T-turns. The selection of a turn is made on the basis of the minimum length of the non-working move, after which the width of the needed headland for the selected turn is calculated. This algorithm can be added to the on-board computer of the unit thus providing a more efficient way of moving, automatically generating a headland and following the trajectory of the se...
This paper proposes methods and tools for determining plant pigments using data from a mobile pho... more This paper proposes methods and tools for determining plant pigments using data from a mobile phone video sensor. A disadvantage of the known studies in this field is that they are mainly aimed at determining the chlorophyll content. There are few studies related to the determination of pigments such as carotenoids, flavonoids, and betalains, which are also important in terms of determining the condition of plants in their cultivation. Cucumbers were chosen because the long periods of drought in Bulgaria, lead to losses in cultivating these plants. Vectors containing colour and spectral indices were used. These features are obtained through a video sensor on a mobile phone. The kernel method variant of principal components reduces them. Feature vectors are selected using factor analysis, correspondence analysis, and the correlation method. Predictive models have been developed to determine plant pigments. With high accuracy (over 90%), the pigments xanthophyll and chlorophyll A can ...
The aim of the research is to improve the public’s assessment and understanding of the cultural v... more The aim of the research is to improve the public’s assessment and understanding of the cultural values and history of Bulgaria. The main issues related to the sustainable use of elements of the cultural heritage are defined, and the accessible literary sources related to the digitization of the folklore heritage are reviewed. Shape indices, color, and textural characteristics were obtained from digital color images of the elements of Bulgarian folk costumes. The most informative indices of these features were selected. A kernel variant of the principal component analysis (kPCA) method was used to reduce the data volume of the feature vector. A Naïve Bayes classifier, discriminant analysis, and the support vector method (SVM) were used for classification. The classification accuracy was assessed. In the analysis of the decorative elements of Bulgarian costumes, it was found that the accuracy of classification depended both on the method for reducing the volume of data and on the sepa...
Air pollution and travel comfort in public transport is a significant problem as it can cause hea... more Air pollution and travel comfort in public transport is a significant problem as it can cause health problems for passengers. There are no sufficiently developed and researched monitoring systems for measuring the quality of the environment in public transport, which makes it difficult to assess the extent of the problem and implement effective solutions. This study presents the results of measurements made with a developed system for assessing air pollution and environmental quality in urban transport. Two time periods were defined based on air pollution and traffic levels, and informational features were selected for bus stops and buses. Noise was found not to be an informative feature, but vehicle acceleration should be considered in environmental quality monitoring. A quadratic discriminant classifier combined with principal components was shown to accurately classify high and low pollution time periods. Further research is planned to investigate the relationship between air pol...
Proceedings of the 21st International Conference on Computer Systems and Technologies
In this paper a vision of the university of the future is introduced. The vision summarizes ideas... more In this paper a vision of the university of the future is introduced. The vision summarizes ideas and concepts that come as a result of long-term research and experience of the Centre of Innovative Educational Technologies at the University of Ruse. The vision outlines the evolution of the higher education as well as the roles and the future development of the physical against the virtual university and the traditional against the distance education. The new emerging skills of the academic staff are also discussed.
The introduction of the today's information and communications technology in the education is... more The introduction of the today's information and communications technology in the education is one of the possible solutions of the problem with digital generation's decreasing affinity to education. The main reason is that the new generation is so close attached to the new technology. The purpose of this paper is to present the possibilities of web-based system for the sharing of content and collaboration in the Higher education, as well as to present a best practice in the using of this system in the
IOP Conference Series: Materials Science and Engineering, 2021
Augmented reality is a modern technology that can be used in universities, providing conditions f... more Augmented reality is a modern technology that can be used in universities, providing conditions for learning in an interactive virtual environment and achieving a high level of visualization through the means preferred by today’s digital students. AR creates conditions for easier and more accessible studying of the taught material, acquiring more knowledge in a short time, developing creative thinking of the students. AR application can increase the quality of education. In the engineering disciplines is of great importance to view the studied objects from all sides. Instead of multiple 2D images, in the textbooks could be used markers for generating AR with an interactive 3D models, providing full visualization. Students can use their mobile devices for 3D visualization of the considered objects, which makes AR easily accessible. The aim of the research is to develop topics from a textbook on “Design and modelling of women’s dresses in different silhouettes” for students majoring i...
IOP Conference Series: Materials Science and Engineering, 2021
With the development of technology in recent years, it is clear that the potential in traditional... more With the development of technology in recent years, it is clear that the potential in traditional networks has been exhausted. Software defined network (SDN) is emerging network, which provides a global centralized view, separating the control plane from the data plane. This article discusses the potential for determining the optimal latency in SDN networks with capital cost optimization-CapEx. A mathematical formulation for solving the problem is considered. Following this approach will speed up routing and improve QoS.
The rapid development of science, technology, and information technologies in various sectors of ... more The rapid development of science, technology, and information technologies in various sectors of the economy imposes increased requirements and expectations in the preparation of engineering professionals in higher education. In recent years, there have been some difficulties in engineering and technology training related to the assimilation of the methodology for constructive thinking, the development of clear and precise knowledge structuring, improvement of the ability of expressing thoughts, and graphical presentation of information.This article presents some applications and best practices in the use of e-learning systems, interactive boards, and accessories. The application of active teaching methods and use of information technologies with interactive tools, providing active involvement of the students in training, leads to considerable interest and improvement in the quality of teaching and learning.
A virtual learning environment has been created using Moodle software platform and has been appli... more A virtual learning environment has been created using Moodle software platform and has been applied in Technical College of Yambol. Multimedia courses have been created as well. In our paper we give the assessments of the requirements for the teachers regarding implementation of high quality open and distance learning process. Using interactive whiteboards and possibilities for the teachers to record their instruction and post the material on-line is a good opportunity for realizing ODL-process. The paper presents possibilities for using interactive whiteboards as an educational tool and their application into the practice. The experience and perspectives of their use in educational process at the Technical College of Yambol is shown. Key words: ODL process, virtual learning environment, interactive whiteboards, requirements to teachers. INTRODUCTION The term open and distance learning (ODL) and its definition are relatively new in the field of education, having gained prominence on...
Virtual learning becomes an important task for academic institutions. In Technical College of Yam... more Virtual learning becomes an important task for academic institutions. In Technical College of Yambol the virtual learning environment (VLE) has been created using Moodle software platform and has been introduced into the practice. Multimedia courses have been created in different disciplines. Using interactive whiteboards and possibilities teachers to record their instruction and post the material for review by students at a later time is a good opportunity to overcome the main student's problems and reducing the rate of drop off as well as improving the quality of ODL-process by creating interactive ODL-modules. Key words: ODL process, virtual learning environment, interactive whiteboards. INTRODUCTION Analyzing the ODL process and its evolution over the last few years we can conclude that recently more attention has been paid to the pedagogical issues, trying to define how the use of technologies should be seen within a wider field of teaching experiences based on innovative m...
The design and implementation of a measuring device for the determination of pigment content in p... more The design and implementation of a measuring device for the determination of pigment content in plant leaves is a topic of essential importance in plant biology, agriculture, and environmental research. The timely and sufficiently accurate determination of the content of these molecules provides valuable insight into the health, photosynthetic activity, and physiological state of plants. This paper presents the key aspects and results of the development and implementation of such a measuring device. It makes it possible to measure a larger number of pigments per type compared with the devices for commercial use that are currently known to us, and the accuracy of measurements depends mostly on the specific type of plant that is being tracked. The developed device presents a measurement accuracy ranging between 72% and 97% compared with a reference method and between 87% and 90% compared with a reference technique. Also, by using the device, a significant reduction in time and require...
Building modern Internet of Things (IoT) systems is associated with a number of challenges. One o... more Building modern Internet of Things (IoT) systems is associated with a number of challenges. One of the most significant among them is the need for wireless technology, which will serve to build connectivity between the individual components of this technology. In the larger cities of Bulgaria, measures to ensure low levels of harmful emissions, reduce noise levels, and ensure comfort in urban environments have been taken. LoRa technology shows more advantages in transmission distance and low energy consumption compared to other technologies. That is why this technology was chosen for the design of wireless sensor networks (WSN) for six cities in Bulgaria. These networks have the potential to be used in IoT configurations. Appropriate modules and devices for building WSN for cities in Bulgaria have been selected. It has been found that the greater number of nodes in the WSN leads to an increase in the average power consumed in the network. On the other hand, depending on the location...
Applied Researches in Technics, Technologies and Education, 2018
The stormy development of technologies today gives its influence in the field of education. In th... more The stormy development of technologies today gives its influence in the field of education. In the high and higher education the technology connected students of the digital generation are ready and wait the information and communication technologies to be included not only in their everyday life but in the process of education too. The article analyzes the Augmented Reality (AR) and its possibilities about development of training materials and its implementation in the higher education. The technological aspects in developing interactive educational content with added reality and different uses of this modern technology are studied. The development of training materials which correspond to the visually kinetic style of learning of students from the digital generation is the main aim of the use of AR in thee higher education. The paper presents specific possibilities for apply of AR in education in the fields of Mechanical and Fashion Engineering in the Faculty of Technics and Techn...
One of the challenges to higher education nowadays is to adapt to the learning style, preferences... more One of the challenges to higher education nowadays is to adapt to the learning style, preferences and demands of the Digital generation. To achieve this goal, the educational process should extend beyond the university auditorium and to find a place in the social network where the digital students are most active. The modern ICT should also become an integral part of the administrative and educational activities at the University. In this paper is discussed the role of social networking in higher education, as well as the possibilities for teaching and learning in social WEB. A survey about students' attitudes to the use of social networks and cloud computing in higher education is conducted and an analysis of the survey results is also provided.
This report examines and analyzes the possibilities of using document cameras in the learning pro... more This report examines and analyzes the possibilities of using document cameras in the learning process, their use as a tool for visualization in the auditoriums, laboratories and universities as tools for increasing the interest and activity of students. An overview of the possibilities of using Web-cameras as document cameras is made as well. The advantages and disadvantages in the application of these devices primarily as a learning tool are represented by analysis, which compares the key parameters of the document cameras and webcams
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