Now showing 1 - 10 of 23
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Power Flow Optimization in Electrical Networks using Gekko
    Power flow optimization in the electrical grid is critical to improve the stability and performance of power systems. The main challenge lies in finding an optimal distribution of power generation that meets the constraints imposed by the grid, such as voltage limits and power system stability conditions. The objective of this research was to evaluate the performance of Gekko in power flow optimization in electrical grids. To do so, a comparison was made with SciPy, a widely used benchmark framework in numerical optimization in order to assess their relative efficiency in problems with complex constraints. The comparison is based on metrics such as solution accuracy, convergence speed, and number of objective function evaluations. The results showed that both methods achieved the same objective value: SciPy (19.7) and Gekko (19.7). However, SciPy was slightly faster (0.01496 seconds vs. 0.0191 seconds), but required 60 objective function evaluations. In contrast, Gekko demonstrated greater computational efficiency, reducing the number of evaluations required for convergence. While SciPy is more efficient on small problems with explicit constraints, Gekko offers greater flexibility on problems with more complex constraints, making it more suitable for larger power systems.
      37
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Performance and Real-World Variability of Predictive Maintenance Models for Vehicle Fleets
    (2024) ;
    Dayanara Yánez-Arcos
    ;
    ;
    Elena Blanco-Romero
    This study presents a comprehensive evaluation of predictive maintenance models for vehicle fleets, detailing a sequence of systematic steps to ensure model performance and address real-world variability. The process begins with database creation and data preprocessing, where relevant maintenance records are filtered, and datetime columns are converted to facilitate time-based calculations. Grouping and aggregation techniques are then applied to count occurrences of specific maintenance activities and identify common failure types. For model training, we define a neural network architecture comprising dense and dropout layers to mitigate overfitting, compile the model with suitable loss functions and optimizers, and train it using the prepared data. The trained model, along with the scaler and encoder, is saved for future use. To augment the dataset, synthetic data is generated using the Faker library and random distributions, with added noise to mimic real-world variability. Preprocessing steps are reapplied to this synthetic data to ensure consistency. By implementing this neural network, we achieved a sensitivity of 0.93 and an ROC of 0.71. Following these detailed steps, we develop a robust predictive maintenance model that effectively identifies failures and non-failures, ultimately enhancing the reliability and efficiency of vehicle fleet management.
      27
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Innovative Learning Environments Through Social Media: Evaluation of Their Impact on Secondary Basic Education
    Education has evolved with the integration of information technologies, including the use of social media as innovative tools in educational technology. Although initially conceived for social interaction, platforms such as TikTok, WhatsApp, and Facebook have shown potential to enrich the learning environment and teaching-learning processes. In this context, a four-week didactic intervention was designed and implemented in seventh-year basic education students, focused on reinforcing knowledge in natural sciences through activities on social media. The methodology combined a quantitative and qualitative approach, with the application of surveys and pre- and post-intervention evaluations in three areas: electricity and energy, magnetism, atmosphere and climate. The results showed significant improvements in the categories of magnetism (Z = −3.918, p < 0.001) and atmosphere and climate (Z = −3.324, p = 0.001). However, no statistically significant difference was found in the category of electricity and energy (Z = −1.230, p = 0.219). This indicates that the intervention was more effective in certain areas, suggesting the need to adjust strategies for other topics. The effectiveness of using information technologies in education, particularly social media, to improve academic performance in specific areas is highlighted, proposing their potential as complementary teaching tools and the need to continue researching their application in various educational disciplines
      13
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Gamification in Inclusive Education for Children with Disabilities: Global Trends and Approaches - A Bibliometric Review
    Given the growing attention to the intersection between technology and education, gamification has emerged as a strategy with great benefits. This bibliometric review addresses gamification’s current and future relevance in the educational field, focusing on its use as a pedagogical strategy to improve the learning and engagement of children with disabilities. Sixty-six studies published between 2001 and 2023 were analyzed, evaluating the most influential articles, main keywords, prominent authors, collaborating institutions, and funding sources. The literature suggests that gamification offers inclusive and personalized learning opportunities covering various disabilities. Methodologies and approaches to implement gamification were identified, including game elements, user-centered design techniques, and emerging technologies such as virtual reality, artificial intelligence, and educational robotics. However, challenges and areas for improvement were also found, such as the need for more long-term empirical evidence and the importance of considering individual differences and specific needs when designing gamification strategies. The review highlights the importance of strengthening collaborative networks between researchers and education professionals to disseminate best practices and promote more effective gamification approaches adapted to the needs of children with disabilities. Collaboration between educators, game developers, researchers, and parents are crucial to ensure that gamification efforts are inclusive and meet the diverse needs of students. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.
    Scopus© Citations 2  24
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Towards Smart Agriculture: An Overview of Big Data in the Agricultural Industry
    Agriculture is currently undergoing progressive diversification and expansion, as demonstrated by the wide range of research topics and methodologies being employed. The growing need for technology to enhance agricultural processes is increasingly evident and prominently highlighted in recent studies. To assess the influence of Big Data on agriculture and its potential to advance Smart Agriculture, this bibliometric study was conducted. The research consolidates bibliometric data from the Scopus database, using the Bibliometrix package to identify trends in this field. The findings show a growing annual publication rate, indicating increasing interest in the integration of data analysis methodologies within agriculture. The collaborative nature of the research, combined with a high citation rate per document and diversity of key terms, underscores the importance of this field and its potential contribution to achieving Smart Agriculture. The convergence of Big Data, the Internet of Things, and agriculture is particularly noteworthy, as these technologies are improving decision-making and efficiency in the agricultural sector. Despite certain limitations, this study highlights the transformative potential of these advancements and suggests areas for future research, thus laying the groundwork for a more sustainable, productive, and intelligent agricultural future.
      21
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Adaptive Learning Platforms and Their Influence on Higher Education: A Scoping Review
    Over the past decade, adaptive learning platforms have transformed higher education by adjusting content and activities based on students’ abilities and progress. This approach personalizes learning and optimizes academic performance, particularly in complex disciplines such as engineering and science. However, challenges remain related to their technological implementation and acceptance by both students and educators. This scoping review analyzes the impact of adaptive learning platforms in higher education, focusing on their influence on academic performance, student motivation, practical implementation challenges, and future implications for research. An exploratory literature review was conducted using the PRISMA-ScR method, identifying recent studies published between 2019 and 2024 in databases such as ERIC, Scopus, IEEE Xplore, Web of Science, and APA PsycNet. Quantitative and qualitative research studies were selected, evaluating the impact of these platforms in university settings and the outcomes they produce. The results indicate that adaptive learning platforms significantly enhance academic performance by providing personalized experiences and immediate feedback. They also increase student motivation and engagement, particularly in online learning environments. However, challenges were identified, including the need for adequate technological infrastructure and specialized training for educators. Adaptive learning platforms hold transformative potential in higher education but require overcoming technological and pedagogical barriers. Further qualitative research is recommended to better understand user experiences and maximize their effectiveness across diverse educational contexts.
      32
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Digital Competency Enhancement in Personnel Training and Development: A Literature Review of Current Trends and Challenges
    In a perpetually advancing technological landscape, workforce training and development centered around digital competency and computer science principles are critical for ensuring the organizational resilience and competitiveness. This study undertakes a bibliographic analysis of technology-focused personnel training and development, aspiring to identify the strategies implemented, benefits perceived, and challenges emerging in this digital era. Three foundational research questions are outlined: What strategies are employed in technology-focused continuous training? What benefits do workers acquire after technology-centric training? And what are the prevalent challenges in digital skills training? A literature search approach was deployed to answer these queries, executing a meticulous analysis of 33 significant scientific papers. The results indicate a burgeoning trend towards virtual, technology-driven training, and the usage of practical simulations in training. It was also confirmed that continuous technology-focused training creates positive impacts on both work performance and worker attitudes. However, challenges like resistance to change and technological limitations persist in certain organizations.
      101
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Virtual Reality and User Experience: Current Trends and Future Challenges
    (2025) ; ;
    Guillermo Palacios-Navarro
    Virtual reality is an emerging and versatile technology that is gaining increasing interest from the scientific community, particularly regarding user experience. A review of the literature highlights the need for updated analyses that comprehensively address current trends in this field. The objective of this study is to analyze the evolution of scientific publications related to virtual reality and user experience, identifying trends, the most influential authors, relevant journals, and international collaborations, to provide a comprehensive overview. A bibliometric analysis was conducted using the Web of Science Core Collection database, identifying a total of 1,848 relevant publications. Network analysis techniques and Bradford’s law were applied, allowing for the examination of the distribution and impact of publications, as well as collaboration between authors and institutions. The results show an exponential growth in scientific output, particularly since 2019. While the United States leads in the number of publications, most of the influential authors are from Europe, with notable scientific output in Spain and Portugal. Current research hotspots include virtual reality applications in education and healthcare (over 70% of the analyzed publications), which align with Sustainable Development Goals, particularly 3 and 4. Trends indicate a shift towards integrating virtual reality with artificial intelligence, adaptive systems, and multisensory interaction to enhance immersion and usability. Challenges include a lack of standardized methodologies to assess immersion, presence, and cognitive load, which limits comparisons across studies and hinders the development of best practices. Future research should focus on refining interaction paradigms, improving accessibility, and developing ethical frameworks that respect data privacy and protect the user from cybersickness and the psychological effects of prolonged virtual reality exposure.
      26
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Digital Animation, Health Education in Post COVID-19 Scenario
    (2024)
    Oleas, J
    ;
    Aguayza-Mendieta C.
    ;
    ;
    Sanchez D.
    In post pandemics scenario, viral respiratory diseases are show up very often in changeable and usually cold weather locations. Ecuadorian cities in Andean region have altitude and unpredictable climate characteristics where respiratory diseases are frequent. COVID-19, influenza, flu and other infections are still present in the environment This research shows a development and application of digital animation, showing the audiovisual production processes developed through digital tools, products in educational contexts, adapted to the global health situation post pandemics. The study shows a mixed-type research divided into two phases. The first stage, for information collection, determined the needs for learning topics that collaborates in COVID-19 prevention in elementary education population through digital cartoons as a tool using social media as broadcast medium. The second stage, the animated product evaluation, inside an application scenario, in elementary schools in Riobamba city, that was exhibited through social networks. Through qualitative and quantitative research approaches, it has been possible to demonstrate the animation (digital cartoons) relevance in educational areas. Likewise, the study shows teachers and parents positive predisposition of digital animation use, as a learning tool and its use for educational content transmission, which is something new in the Ecuadorian school scene. © 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.
      41
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Ethical and Social Challenges in Virtual Reality: A Bibliometric Analysis
    (2024) ;
    Homero J. Velastegui
    ;
    ;
    Hugo Paz-León
    ;
    Guillermo Palacios-Navarro
    Virtual reality has revolutionized human interaction with digital environments, creating immersive simulations that have significantly impacted sectors such as education, urban planning, and mental health. Along with its transformative potential, VR presents ethical and societal challenges. This study analyzes trends in research addressing these challenges, focusing on articles published through 2023 in the Web of Science database. Visual and statistical analyses reveal a sustained increase in publications since 2013. Patterns in authorship and collaboration networks emphasize the global and interdisciplinary nature of VR research. Dominant themes include the metaverse and therapeutic applications, as well as concerns about data privacy, virtual identity representation, and psychological effects such as cybersickness. Research highlights temporary symptoms such as nausea and eye strain associated with immersive systems, demonstrating the need for ergonomic design and age-specific usage guidelines. Furthermore, active video games using VR have shown promise in promoting physical activity, offering innovative solutions to combat sedentary lifestyles. Looking ahead, efforts must prioritize equitable access, user safety, and robust ethical frameworks to ensure the responsible and sustainable integration of VR technologies.
      12