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View article: Design and Performance Analysis of MPPT Algorithms Applied to Multistring Thermoelectric Generator Arrays Under Multiple Thermal Gradients
Design and Performance Analysis of MPPT Algorithms Applied to Multistring Thermoelectric Generator Arrays Under Multiple Thermal Gradients Open
Thermoelectric systems configured in multistring arrays of thermoelectric generators (TEGs) represent a promising solution for energy harvesting in environments with non-uniform thermal gradients. However, the presence of multiple maximum …
View article: Development and Evaluation of a Piezoelectret Insole for Energy Harvesting Applications
Development and Evaluation of a Piezoelectret Insole for Energy Harvesting Applications Open
This work presents the development and experimental validation of a low-cost, piezoelectret-based energy harvesting system integrated into a custom insole, as a promising alternative for future self-powered wearable electronics. The design…
View article: OptoBrain: A Wireless Sensory Interface for Optogenetics
OptoBrain: A Wireless Sensory Interface for Optogenetics Open
Optogenetics leverages light to control neural circuits, but traditional systems are often bulky and tethered, limiting their use. This work introduces OptoBrain, a novel, portable wireless system for optogenetics designed to overcome thes…
View article: Fault Diagnosis in Internal Combustion Engines Using Artificial Intelligence Predictive Models
Fault Diagnosis in Internal Combustion Engines Using Artificial Intelligence Predictive Models Open
The growth of greenhouse gas emissions, driven by the use of internal combustion engines (ICE), highlights the urgent need for sustainable solutions, particularly in the shipping sector. Non-invasive predictive maintenance using acoustic s…
View article: Bibliometrics of Psychosocial Diseases in Brazilian Workers - 2015 to 2025
Bibliometrics of Psychosocial Diseases in Brazilian Workers - 2015 to 2025 Open
Objective: The objective of this study is to consolidate the Brazilian scientific production on work-related psychosocial problems, published between 2015 and 2025, in order to map existing knowledge, identify challenges, and direct future…
View article: Electrical Resistivity Control for Non-Volatile-Memory Electrodes Induced by Femtosecond Laser Irradiation of LaNiO3 Thin Films Produced by Pulsed Laser Deposition
Electrical Resistivity Control for Non-Volatile-Memory Electrodes Induced by Femtosecond Laser Irradiation of LaNiO3 Thin Films Produced by Pulsed Laser Deposition Open
In this work, we investigated how the electrical resistivity of LaNiO3 thin films deposited on SrLaAlO4 (100), LaAlO3 (100), and MgO (100) single-crystal substrates by the pulsed laser deposition (PLD) technique can be controlled by femtos…
View article: Smart Personal Protective Equipment Hood Based on Dedicated Communication Protocol
Smart Personal Protective Equipment Hood Based on Dedicated Communication Protocol Open
This project aimed to develop personal protective equipment (PPE) that provides full biological protection for the general public without the need for extensive training to use the equipment. With the proposal to develop a device guided by…
View article: Secret Cryptographic Key Sharing Through the Integer Partition Function
Secret Cryptographic Key Sharing Through the Integer Partition Function Open
Secret key exchange is a necessary function for modern cryptography. The integer partition function is a mathematical function that arises from number theory. New methods for computing the integer partition function were developed and eval…
View article: The Development and Validation of a High-Resolution Photonic and Wireless System for Knee Gait Cycle Monitoring
The Development and Validation of a High-Resolution Photonic and Wireless System for Knee Gait Cycle Monitoring Open
This paper presents the development and validation of a high-resolution photonic and wireless monitoring system for knee-referenced gait cycle analysis. The proposed system integrates a single optical Fiber Bragg Grating (FBG) sensor with …
View article: The Challenges of Ergonomics in Handling Loads in Industry 4.0 and 5.0
The Challenges of Ergonomics in Handling Loads in Industry 4.0 and 5.0 Open
Objective: This study investigates the ergonomic challenges related to load handling in industrial environments within the context of Industry 4.0 and 5.0, aiming to understand how emerging technologies can be integrated into ergonomic pra…
View article: Sinus rhythm late activation zones as a target for improving ventricular tachycardia ablation outcomes
Sinus rhythm late activation zones as a target for improving ventricular tachycardia ablation outcomes Open
Background Ventricular tachycardia (VT) ablation is a critical intervention for patients with ischemic heart disease and has demonstrated to improve patient’s prognosis. Although there is some evidence regarding the best way to identify th…
View article: Preservation of left ventricular ejection fraction with left bundle branch area pacing
Preservation of left ventricular ejection fraction with left bundle branch area pacing Open
Background Left bundle branch area pacing (LBBAP) has emerged as an effective ventricular pacing strategy aiming to maintain physiological conduction, and potentially preserving ventricular function. While procedural aspects and lead param…
View article: Left bundle branch area pacing: longitudinal data on pacing efficacy
Left bundle branch area pacing: longitudinal data on pacing efficacy Open
Background Left bundle branch area pacing (LBBAP) has gained recognition as a technique for physiological ventricular pacing that maintains left ventricular (LV) synchrony. Although procedural characteristics are increasingly documented, i…
View article: The ASSIST Trial: Acute Effects of Manipulating Strength Exercise Volume on Insulin Sensitivity in Adults Living With Obesity: A Randomized Controlled, Crossover, Clinical Trial
The ASSIST Trial: Acute Effects of Manipulating Strength Exercise Volume on Insulin Sensitivity in Adults Living With Obesity: A Randomized Controlled, Crossover, Clinical Trial Open
Aims To investigate the influence of exercise volume on the transient increase in insulin sensitivity and β‐cell function that occurs in the hours following an acute bout of strength exercise. Materials and methods Fifteen (14 females) adu…
View article: Automatic Phase Correction of NMR Spectra Using Brute-Force GPU Method
Automatic Phase Correction of NMR Spectra Using Brute-Force GPU Method Open
Although there are still no fully guaranteed solutions to the problem of phase adjustment of NMR spectroscopy signals, it has not received much consideration recently, especially in the presence of noisy signals. To address this gap, we pr…
View article: State of the Art in Electric Batteries’ State-of-Health (SoH) Estimation with Machine Learning: A Review
State of the Art in Electric Batteries’ State-of-Health (SoH) Estimation with Machine Learning: A Review Open
The sustainable reuse of batteries after their first life in electric vehicles requires accurate state-of-health (SoH) estimation to ensure safe and efficient repurposing. This study applies the systematic ProKnow-C methodology to analyze …
View article: Low-Cost Embedded System Applications for Smart Cities
Low-Cost Embedded System Applications for Smart Cities Open
The Internet of Things (IoT) represents a transformative technology that allows interconnected devices to exchange data over the Internet, enabling automation and real-time decision making in a variety of areas. A key aspect of the success…
View article: Advancements in Microlenses and their Diverse Applications in Optical Sensors
Advancements in Microlenses and their Diverse Applications in Optical Sensors Open
The fabrication and characterization are two areas where the microlenses have been widely studied. The integration of microlenses into microdevices was the main slingshot to achieve the fabrication of compact optical microsystems with redu…
View article: Early Cancer Detection Biosensors: Present Situation and Future Outlooks
Early Cancer Detection Biosensors: Present Situation and Future Outlooks Open
Advances in biosensors have propelled the field of intelligent medicine, leading to significant innovations in the diagnosis and treatment of complex diseases, including cancer. In this context, biosensors have emerged as a promising tool …
View article: Atrial Fibrillation Catheter Ablation: Electroporation Against High-Power Short Duration Radiofrequency
Atrial Fibrillation Catheter Ablation: Electroporation Against High-Power Short Duration Radiofrequency Open
Background Pulmonary vein isolation (PVI) is crucial in treating symptomatic atrial fibrillation (AF). New ablation technologies, such as pulse-field ablation (PFA) and high-power short-duration (HPSD) have emerged in the electrophysiology…
View article: Open-Source Data Logger System for Real-Time Monitoring and Fault Detection in Bench Testing
Open-Source Data Logger System for Real-Time Monitoring and Fault Detection in Bench Testing Open
This paper presents the design and development of a proof of concept (PoC) open-source data logger system for wireless data acquisition via Wi-Fi aimed at bench testing and fault detection in combustion and electric engines. The system int…
View article: Investigation of a Magnetic Levitation Architecture with a Ferrite Core for Energy Harvesting
Investigation of a Magnetic Levitation Architecture with a Ferrite Core for Energy Harvesting Open
This work presents the development of a magnetic levitation system with a ferrite core, designed for electromagnetic energy harvesting from mechanical vibrations. The system consists of a fixed enamel-coated copper coil and five neodymium-…
View article: Comparative Analysis and Integrated Methodology for the Electrical Design and Performance Evaluation of Thermoelectric Generators (TEGs) in Energy Harvesting Applications
Comparative Analysis and Integrated Methodology for the Electrical Design and Performance Evaluation of Thermoelectric Generators (TEGs) in Energy Harvesting Applications Open
This study presents a comparative analysis of the accuracy of different methodologies for the design and performance evaluation of thermoelectric generators (TEGs), using analytical, computational numerical, and experimental approaches. TE…
View article: Safety and effectiveness of pulsed field ablation for pulmonary vein isolation in atrial fibrillation patients: a single centre experience
Safety and effectiveness of pulsed field ablation for pulmonary vein isolation in atrial fibrillation patients: a single centre experience Open
Introduction Atrial Fibrillation (AF) is the most frequent arrhythmia in the world with an exponentially increasing prevalence. Pulmonary veins (PV) are the primary triggering sites for AF and pulmonary veins isolation (PVI) is currently t…
View article: Power Consumption Efficiency of Encryption Schemes for RFID
Power Consumption Efficiency of Encryption Schemes for RFID Open
This paper provides a comparative analysis of AES (Advanced Encryption Standard) and Salsa20 algorithm implementations, focusing on power consumption efficiency in passive RFID (radio-frequency identification) tags and ultra-low-power devi…
View article: A Microdevice in a Submicron CMOS for Closed-Loop Deep-Brain Stimulation (CLDBS)
A Microdevice in a Submicron CMOS for Closed-Loop Deep-Brain Stimulation (CLDBS) Open
Deep-brain stimulation (DBS) is a highly effective and safe medical treatment that improves the lives of patients with a wide range of neurological and psychiatric diseases. It has been established as a first-line tool in the treatment of …
View article: On the strain-sensing capabilities of a novel all-solid-state sodium-based-electrolyte battery under vibration loads
On the strain-sensing capabilities of a novel all-solid-state sodium-based-electrolyte battery under vibration loads Open
Growing environmental concerns and the demand for sustainable resource use have raised questions about the conventional use of lithium-ion batteries. In this context, solid-state sodium-based batteries are considered promising energy stora…