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Mapping Monophonic MIDI Tracks to Vibrotactile Stimuli Using Tactile Illusions

2022 , Remache Vinueza, Byron , Trujillo-León A. , Clim M.-A. , Sarmiento-Ortiz F. , Topon-Visarrea L. , Jensenius A.R. , Vidal-Verdú F.

In this project, we propose an algorithm to convert musical features and structures extracted from monophonic MIDI files to tactile illusions. Mapping music to vibrotactile stimuli is a challenging process since the perceptible frequency range of the skin is lower than that of the auditory system, which may cause the loss of some musical features. Moreover, current proposed models do not warrant the correspondence between the emotional response to music and the vibrotactile version of it. We propose to use tactile illusions as an additional resource to convey more meaningful vibrotactile stimuli. Tactile illusions enable us to add dynamics to vibrotactile stimuli in the form of movement, changes of direction, and localization. The suggested algorithm converts monophonic MIDI files into arrangements of two tactile illusions: “phantom motion” and “funneling”. The validation of the rendered material consisted of presenting the audio rendered from MIDI files to participants and then adding the vibrotactile component to it. The arrangement of tactile illusions was also evaluated alone. Results suggest that the arrangement of tactile illusions evokes more positive emotions than negative ones. This arrangement was also perceived as more agreeable and stimulating than the original audio. Although musical features such as rhythm, tempo, and melody were mostly recognized in the arrangement of tactile illusions, it provoked a different emotional response from that of the original audio. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Monitoring System for Physical Water Quality Parameters and Automatic Control for Chlorine Dosing in a Aerator Treatment Plant

2021 , Balarezo J.C. , Buele, Jorge , Naranjo-Avalos H. , Castillo F. , Vargas W.G. , Salazar F.W.

This work proposes the development and creation of an automatic monitoring and control system for the dosage of chlorine in the water treatment plant, purifying the vital liquid and avoiding the distribution and consumption of water contaminated by microorganisms. This is achieved by monitoring the physical parameters through the data sent by wireless sensors, acquiring them in a database, sending the data in real time to a web server, where they can be visible to the public, and generating automatic control in Based on the data obtained, this occurs in a water treatment pools. For this, a Raspberry Pi board is used, it acts as a data store, two Arduino Mega, acting as control nodes, a LAN server, and a PID control for the automatic control of chlorine dosage, thus achieving precautionary that the water is disinfected from any microorganism present. © Published under licence by IOP Publishing Ltd.

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Body Temperature Control Using a Robotic Arm

2021 , Varela Aldas, José , Moreira A. , Criollo P. , Ruales, María Belén

At the end of 2019, a highly contagious virus appears, changing the form of interaction between humans, this has implied the use of technology as a support tool to counteract the effects of the new disease (COVID-19). Although many technologies have been successfully adapted, applied robotics promises to reduce or even eliminate the need for person-to-person contact. This article presents the control of the body temperature of the clients of a commercial premises through the implementation of a system that includes a robotic arm, two sensors and a mobile device. The robotic arm is constructed using 3D printing and a low-cost electronic circuitry, body temperature is obtained using an infrared sensor, and a mobile device displays, alerts, and stores the information. The developed code allows remote control of the robot positions or a pre-programmed sequence is automatically activated that includes temperature measurement and hand disinfection. The results show the robot in operation and the data acquired by the system, observing adequate temperatures in most of the users and a single alert during the tests carried out. The conclusions establish the importance of the system in the real application and highlight the multiple benefits of this proposal. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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A Simple Method for Implementation of a Solar Oven for Lumber Drying

2024 , Escudero-Villa P. , Pachacama A. , Núñez-Sánchez J. , Topón-Visarrea L.

In Ecuador, the small and medium-sized wood industries dedicated to the manufacture of boards use a form of natural drying, which takes six months to two years depending on the moisture content, the type of wood, and the thickness. In regular bases, the natural drying process requires six months to obtain dry wood that can be processed to final products, which causes delays in the delivery of production batches and loss of time, affecting the internal economy. In this work, we present a design for a simple implementation of a solar oven to dry wood and derivatives. For this objective, we included the oven chamber physical dimensioning, the requirements and thermodynamic analysis, and a comparison with the standard traditional method. The oven was dimensioned to keep a range of temperature from 15 to 45° in a chamber of . The result of this design allows a time saving of 66.67% and profits of 304% per month for a standard wood processed. These results are possible due to the specific geographical location and climate of Ecuador, which directly influence the effectiveness of a solar oven. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

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DEVELOPMENT OF THE PROPERTY RIGHTS OF AUTHORS OF MUSICAL WORKS AND THEIR COLLECTIVE MANAGEMENT IN ECUADOR AND SPAIN

2022 , Tocoronte, E.M. , Álvarez Sánchez, Ana

This article deals with the essential elements that intervene with the ability to understand, from the different text typologies in the teaching-learning process of the Castilian language, based on theory, as well as Colombian normative documents, which as a whole and based on the Political Constitution of 1991, must guarantee an inclusive education, where the social and cultural environment of the individuals must be taken into account in order to develop a meaningful and contextualized pedago-gical practice. Throughout the writing, the teaching-learning process is related with the formation of the ability to understand, from different text typologies, as a dynamic element of this process in the third grade students of Basic Primary Education. © 2022, University of Cienfuegos, Carlos Rafael Rodriguez. All rights reserved.

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Design and Implementation of a Software for Solving Wave Equations

2022 , Suárez-Carreño F. , Rosales L. , Segura, Juan , Flor-Unda O.

Computational aspects of simulation and modeling in the solution of the Heaviside equation are presented. A second-order finite difference approximation scheme was used. The code was implemented in MATLAB and allowed to obtain the induced currents at the moment of an atmospheric discharge. This is a simple example that allows explaining how an algorithm implemented to solve the Heaviside equation which serves as a basis for solving wave equations that describe different physical phenomena and incorporates tools that allow performing more complete studies in the transient regime when studying atmospheric discharges in transmission lines. Improvements to previous works are introduced, which will contribute to developing more applications, since having more direct and interactive contact with the graphs of the transient regime will reinforce the knowledge about the physical phenomenon studied. In the numerical implementation, a finite difference second-order approximation scheme was used. To validate the code, convergence tests were performed, which allow us to conclude that the code is stable and convergent to the second order of approximation. It is demonstrated that the implemented code is general enough to be implemented in simulations of wave equations describing different physical systems. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Augmented Reality and 3D Balance Learning

2022 , Lara Calle, Andrés , Cruz J. , Mejía N.

The augmented reality is presented as an opportunity to help understand students with attention problems. The objective of this research is to determine the incidence of augmented reality with academic performance and the satisfaction of learning 3D (Third dimension) balance in the training project of Vector Mechanics of the Industrial Engineering career at the Indoamerica Technological University. The problem identified in this investigation was the loss of interest in students when solving problems with three-dimensional systems, unfortunately the textbooks present their printed diagrams in two dimensions, which means, the student cannot locate himself correctly in the system, making errors in his analysis and calculations. This research has a quantitative approach with a positivist and socioformative paradigm. The applied methodology obeys to create didactic material of three-dimensional systems with Computer-Aided Design (CAD), and presented in augmented reality with collaborative work of the students. We used the Pearson's correlation analysis to verify the correlation, obtaining a low coefficient of 0.204 between the variables analyzed. As a result, the hypothesis “The use of augmented reality relates academic performance with the satisfaction of learning Equilibrium 3D in students” was verified. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Smart Antenna Array for Optimal Electromagnetic Energy Capture

2023 , Cumbajín Alferez, Myriam , Sánchez, Patricio , Escobar E. , Gordón C.

Smart antennas are currently one of the most exploited fields in terms of wireless networks, allowing high data transmission capacities, this is achieved by focusing the radiation on the desired direction and adjusting to the environment and conditions in which communications are developed. Smart antennas employ a set of radiating and emitting and combining elements organized in the form of arrangements connected at a common point to guarantee the required power, the signals from these elements are combined to form a moving beam pattern that follows a pattern determined by the user or designer. The consumption of energy within communication systems is considered a big problem and a challenge when carrying out implementations in media where the storage or recharging of the end terminals is complicated by their location, this trend grows with the presence of the Internet of the IoT things, where it is directly dependent on the construction of a large wireless network that allows everything to be interconnected, for this reason there are investigations in the 2.4 and 5.8 GHz bands and represents future work for the 5th Generation (5G) cell phone. The great possibility of collecting electromagnetic energy from densely populated urban areas becomes a great renewable source of power for communication devices for both existing Wi-Fi technology and new technologies such as the 5G network. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Maneuvers Under Estimation of Human Postures for Autonomous Navigation of Robot KUKA YouBot

2021 , Gordón C. , Barahona S. , Cumbajín M. , Encalada P.

We present the successful demonstration of the Autonomous navigation based on maneuvers under certain human positions for an omnidirectional KUKA YouBot robot. The integration of human posture detection and navigation capabilities in the robot was successfully accomplished thanks to the integration of the Robotic Operating System (ROS) and working environments of open source library of computer vision (OpenCV). The robotic operating system allows the implementation of algorithms on real time and simulated platforms, the open source library of computer vision allows the recognition of human posture signals through the use of the Faster R-CNN (regions with convolutional neural networks) deep learning approach, which for its application in OpenCV is translated to SURF (speeded up robust features), which is one of the most used algorithms for extracting points of interest in image recognition. The main contribution of this work is that the Estimation of Human Postures is a promise method in order to provide intelligence in Autonomous Navigation of Robot KUKA YouBot due to the fact that the Robot learn from the human postures and it is capable of perform a desired task during the execution of navigation or any other activity. © 2021, Springer Nature Switzerland AG.

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Gamification in Inclusive Education for Children with Disabilities: Global Trends and Approaches - A Bibliometric Review

2023 , Jadán Guerrero, Janio , Avilés-Castillo, Fátima , Buele, Jorge , Palacios-Navarro G.

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.

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