IEEE Latin America Transactions最新文献

Design and Validation of an IoT System for an Experimental Laboratory Microgrid

IF 1.3 4区工程技术

IEEE Latin America Transactions Pub Date : 2024-12-20 DOI: 10.1109/TLA.2025.10810485

Juan M. Rey;Jonathan Gómez;Natalia Duarte;Iván Hernández;Maria A. Mantilla;Oscar Quiroga

{"title":"Design and Validation of an IoT System for an Experimental Laboratory Microgrid","authors":"Juan M. Rey;Jonathan Gómez;Natalia Duarte;Iván Hernández;Maria A. Mantilla;Oscar Quiroga","doi":"10.1109/TLA.2025.10810485","DOIUrl":"https://doi.org/10.1109/TLA.2025.10810485","url":null,"abstract":"In the energy transition context, electrical microgrids facilitate the integration of renewable generation into the electrical grid, improving the electrical system's reliability and accelerating its decarbonization. However, to promote the technological advancement of these grids, it is necessary to develop tools to validate new technologies and solutions, such as using the Internet of Things (IoT) for their operation and control. This work presents the design, implementation, and validation of an IoT system for an experimental laboratory microgrid developed at Universidad Industrial de Santander. The main design phases of the IoT system are described, beginning with the definition of requirements and extending through the component selection. Validation tests are proposed to verify the functionalities of the IoT system. The results demonstrate that the IoT system successfully enables the transmission and reception of data from external users and servers. The reported experience and the proposed validation tests are relevant for researchers interested in implementing IoT-based stages in existing or future laboratory microgrids.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 1","pages":"25-35"},"PeriodicalIF":1.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10810485","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Personalized Digital Instructor Based on Arduino for Buerger Exercises in Older Adults with Diabetes: Feasibility Study

IF 1.3 4区工程技术

IEEE Latin America Transactions Pub Date : 2024-12-20 DOI: 10.1109/TLA.2025.10810400

Ernesto Ríos Willars;Brandon Emmanuel Delabra Salinas;María Magdalena Delabra Salinas;Daniel Sifuentes Leura;Nereyda Hernández Nava;Alejandro Martínez Ramírez;Rosa Eréndira Fosado Quiroz;Bertha Cecilia Salazar-González

{"title":"Personalized Digital Instructor Based on Arduino for Buerger Exercises in Older Adults with Diabetes: Feasibility Study","authors":"Ernesto Ríos Willars;Brandon Emmanuel Delabra Salinas;María Magdalena Delabra Salinas;Daniel Sifuentes Leura;Nereyda Hernández Nava;Alejandro Martínez Ramírez;Rosa Eréndira Fosado Quiroz;Bertha Cecilia Salazar-González","doi":"10.1109/TLA.2025.10810400","DOIUrl":"https://doi.org/10.1109/TLA.2025.10810400","url":null,"abstract":"Diabetes in older adults can lead to complications such as peripheral artery disease, neuropathy, and foot ulcers. Accessing treatments can be challenging due to limited resources. Implementing low-cost preventive therapies like Buerger's exercises is essential. However, these exercises must be standardized. The purpose was to develop an Arduino-based electronic system as a gerontechnological tool for homologating Buergers exercises and facilitating their execution by older adults with diabetes mellitus. The Intervention Theory by Sidani guided the development of this study. A feasibility and pilot study with one group, pretest/posttest design, was conducted in twenty older adults with HbA1c 8% and their caregivers in Saltillo, Coahuila, Mexico, from November 2020 to June 2021. Feasibility was measured with an acceptability and satisfaction instrument; the ankle-arm index was measured with 8 Hertz Doppler and neuropathy symptoms with a modified Toronto Clinical Neuropathy Score. The mean age was 67.50 5.61 years old in older adults and 48.32 16.26 in caregivers. The digital instructor was accepted by 73.3% (11 older adults) without any issues; 47.4% (9 older adults) and 26.3% (6 caregivers) expressed high levels of satisfaction. Participants noted significant benefits such as improved peripheral circulation, reduced pain, numbness, and tingling. These promising results underscore the potential of the electronic system to make a noticeable improvement in the lives of older adults with diabetes mellitus and their caregivers. The device was meticulously designed to be user-friendly and accessible, making it ideal gerontechnological tool to manage health at home.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 1","pages":"78-85"},"PeriodicalIF":1.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10810400","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Editorial 2025

IF 1.3 4区工程技术

IEEE Latin America Transactions Pub Date : 2024-12-19 DOI: 10.1109/TLA.2025.10810398

Daniel Ulises Campos Delgado

引用次数: 0

Optimizing Solar Irradiance Prediction: Feature Selection for All-Sky Image Processing Using a Hybrid Prediction Method

IF 1.3 4区工程技术

IEEE Latin America Transactions Pub Date : 2024-12-19 DOI: 10.1109/TLA.2025.10810404

Joylan Nunes Maciel;Gustavo de Souza Campoi;Willian Zalewski;Jorge Javier Gimenez Ledesma;Oswaldo Hideo Ando Junior

{"title":"Optimizing Solar Irradiance Prediction: Feature Selection for All-Sky Image Processing Using a Hybrid Prediction Method","authors":"Joylan Nunes Maciel;Gustavo de Souza Campoi;Willian Zalewski;Jorge Javier Gimenez Ledesma;Oswaldo Hideo Ando Junior","doi":"10.1109/TLA.2025.10810404","DOIUrl":"https://doi.org/10.1109/TLA.2025.10810404","url":null,"abstract":"The forecasting of solar irradiance is crucial for photovoltaic solar energy generation, as production is subject to intermittency due to climatic conditions, such as cloud cover, wind and, temperature. Based on the Hybrid Prediction Method (HPM), this study investigated the influence of a set of all-sky image processing features on the HPMs Artificial Neural Network prediction accuracy. Using correlation-based attribute selection, three predictive models with different input feature sets were evaluated. The results show that, when considering all horizons together and paired, the Medium set of 6 features achieves prediction accuracy statistically similar to the Complete set with 9 features, reducing the computational time (14.4%) and model input dimensionality (33.3%). However, when comparing individual horizons, the Complete set outperforms the Medium set at 5- and 15-minute horizon, while maintain similar accuracy at the 1-minute horizon. The Reduced set, with three features, consistently underperformed. This study provides news insights into the optimization of solar irradiance forecasting using HPM, contributing to advances in photovoltaic energy forecasting.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 1","pages":"50-57"},"PeriodicalIF":1.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10810404","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation and Optimization of StringDeduplication with Custom Heuristic in Different Versions of the JVM

IF 1.3 4区工程技术

IEEE Latin America Transactions Pub Date : 2024-12-19 DOI: 10.1109/TLA.2025.10810397

Darlan Noetzold;Anubis Graciela de Moraes Rossetto;Jorge Barbosa;Valderi Reis Quietinho Leithardt

引用次数: 0

STAR-IRS Assisted Rate Splitting Multiple Access with Perfect and Imperfect CSI for 6G Communication

IF 1.3 4区工程技术

IEEE Latin America Transactions Pub Date : 2024-12-19 DOI: 10.1109/TLA.2025.10810403

Aswini Krishnan;Sundaresan Sabapathy;Surendar Maruthu

{"title":"STAR-IRS Assisted Rate Splitting Multiple Access with Perfect and Imperfect CSI for 6G Communication","authors":"Aswini Krishnan;Sundaresan Sabapathy;Surendar Maruthu","doi":"10.1109/TLA.2025.10810403","DOIUrl":"https://doi.org/10.1109/TLA.2025.10810403","url":null,"abstract":"Incorporating cutting-edge technology like rate splitting multiple access (RSMA) and intelligent reflecting surface (IRS) are essential in 6G communications to satisfy the constantly growing needs for more connection, better reliability, and faster data rates. This paper explores the concept of simultaneously transmitting and reflecting IRS (STAR-IRS) assisted RSMA in the presence of both perfect and imperfect channel state information (CSI). STAR-IRS leverages its dual capability to transmit and reflect signals simultaneously, enhancing spectral efficiency and expanding coverage. So far, in literature, STAR-IRS assisted RSMA system is analyzed in terms of outage probability with perfect CSI scenario. So, in this work, we carry out the performance analysis of STAR-IRS in terms of outage probability and sum rate. Firstly, we derive the analytical expression of the outage probability and sum rate. Secondly, we propose a automatic optimization (AO) algorithm for weighted sum rate (WSR) maximization. The performance analysis is carried out by varying power allocation factor to find its optimality. The derived outage probability and sum rate expressions are validated with Monte Carlo simulations. Also, it is found that on using WSR maximization, the sum rate is enhanced for STAR-IRS based RSMA system when compared with the conventional sum rate maximization.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 1","pages":"17-24"},"PeriodicalIF":1.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10810403","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Through the Youth Eyes: Training Depression Detection Algorithms with Eye Tracking Data

IF 1.3 4区工程技术

IEEE Latin America Transactions Pub Date : 2024-12-19 DOI: 10.1109/TLA.2025.10810399

Derick Axel Lagunes-Ramírez;Gabriel González-Serna;Leonor Rivera-Rivera;Nimrod González-Franco;María Y. Hernández-Pérez;José A. Reyes-Ortiz

{"title":"Through the Youth Eyes: Training Depression Detection Algorithms with Eye Tracking Data","authors":"Derick Axel Lagunes-Ramírez;Gabriel González-Serna;Leonor Rivera-Rivera;Nimrod González-Franco;María Y. Hernández-Pérez;José A. Reyes-Ortiz","doi":"10.1109/TLA.2025.10810399","DOIUrl":"https://doi.org/10.1109/TLA.2025.10810399","url":null,"abstract":"Depression is a prevalent mental health disorder, and early detection is crucial for effective intervention. Recent advancements in eye-tracking technology and machine learning offer new opportunities for non-invasive diagnosis. This study aims to assess the performance of different machine learning algorithms in. predicting depression in a young sample using eye-tracking metrics. Eye-tracking data from 139 participants were recorded with an emotional induction paradigm in which each participant observed a set of positive and negative emotional stimuli. The data were analyzed to find differences between groups, where the most significant features were selected to train prediction models. The dataset was then split into training and testing sets using stratified sampling. Four algorithms support vector machines (SVM), random forest (RF), a multi-layer perceptron (MLP) neural network, and gradient boosting (GB) were trained with hyperparameter optimization and 5-fold cross-validation. The RF algorithm achieved the highest accuracy at 84%, followed by SVM, GB, and the MLP neural network. Performance metrics such as accuracy, recall, F1-score, precision recall area under the curve (PR-AUC), and Matthews Correlation Coefficient (MCC) were also used to evaluate the models. The findings suggest that eye-tracking metrics combined with machine learning algorithms can effectively identify depressive symptoms in the young, indicating their potential as non-invasive diagnostic tools in clinical settings.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 1","pages":"6-16"},"PeriodicalIF":1.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10810399","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Novel Approach to Performance Evaluation of Current Controllers in Power Converters and Electric Drives Using Non-Parametric Analysis

IF 1.3 4区工程技术

IEEE Latin America Transactions Pub Date : 2024-12-19 DOI: 10.1109/TLA.2025.10810402

Gustavo Ignacio Rivas-Martínez;Jorge Rodas;Edher Herrera;Jesús Doval-Gandoy

{"title":"A Novel Approach to Performance Evaluation of Current Controllers in Power Converters and Electric Drives Using Non-Parametric Analysis","authors":"Gustavo Ignacio Rivas-Martínez;Jorge Rodas;Edher Herrera;Jesús Doval-Gandoy","doi":"10.1109/TLA.2025.10810402","DOIUrl":"https://doi.org/10.1109/TLA.2025.10810402","url":null,"abstract":"In the field of current controllers for power converters and electric motor units, conventional figures of merit (FMs) such as mean squared error (MSE), integral of time multiplied by absolute error (ITAE), or total harmonic distortion (THD) have traditionally been used. The stochastic nature of these FMs introduces variability, which often results in inaccurate comparisons of the controllers' performance. To address this issue, a parametric statistical methodology has recently been proposed. However, it presents certain limitations, such as the assumption of normality. In response to this, the adoption of a non-parametric methodology is suggested in this work, which promises a precise evaluation of the efficiency of current controllers. In this study, we demonstrate that, under parametric approach, when the assumption of normality is violated, there is a significant increase in Type I error. Furthermore, we show that the non-parametric Mann-Whitney U test offers greater sensitivity compared to its parametric counterpart under these circumstances. Thus, the newly proposed methodology aims to optimize the decision-making process in designing high-performance current controllers for applications in power converters and electric motors. This allows for design decisions grounded in rigorous and statistically-based evaluations. The effectiveness of this methodology is confirmed through its application to a real dataset, enhancing its practicality and contributing to a deeper understanding of the subject matter.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 1","pages":"68-77"},"PeriodicalIF":1.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10810402","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Asset Administration Shell Submodel for Representing the Procedural Part of ISA-88 Recipes

IF 1.3 4区工程技术

IEEE Latin America Transactions Pub Date : 2024-12-19 DOI: 10.1109/TLA.2025.10810401

Johnny Alvarado;Marcela Vegetti;Silvio Gonnet

{"title":"Asset Administration Shell Submodel for Representing the Procedural Part of ISA-88 Recipes","authors":"Johnny Alvarado;Marcela Vegetti;Silvio Gonnet","doi":"10.1109/TLA.2025.10810401","DOIUrl":"https://doi.org/10.1109/TLA.2025.10810401","url":null,"abstract":"It is undeniable the benefits that the implementation of digital twins provides to industries. However, the greatest advances in this regard have been made in the definition and implementation of digital twins in discrete manufacturing industries. The development of these twins is still in its early stages in process industries. An important issue in creating digital twins to support decision-making in the process industry is to be able to describe the production procedures. This paper aims to present an Asset Administration Shell submodel that allows the representation of procedural recipes in the batch process industry based on the ISA-88 standard. This paper proposes a conceptual model to represent the Sequential Function Chart language, which is one of the languages proposed by the mentioned standard to represent manufacturing procedure. In addition, the proposal includes a set of rules to map Sequential Function Chart concepts into concepts belonging to the Asset Administration Shell metamodel introduced by Platform Industrie 4.0. These mapping rules would allow the implementation of tools that automatically translate existing Sequential Function Chart models into Asset Administration Shell submodels to reuse existing knowledge for the implementation of digital twins in batch process industries.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 1","pages":"36-42"},"PeriodicalIF":1.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10810401","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Table of Contents January 2025

IF 1.3 4区工程技术

IEEE Latin America Transactions Pub Date : 2024-12-19 DOI: 10.1109/TLA.2025.10810395

引用次数: 0