RSS 1.0Departamento de Engenharia Elétrica
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Semi-supervised learning with connectivity-driven convolutional neural networks
; Rosa, Gustavo Henrique
; Thomazella, Rogério ; Castanho, José Eduardo Cogo ; Dotto, Fábio Romano Lofrano ; ; Marana, Aparecido Nilceu ; Papa, João Paulo (Pattern Recognition Letters, 2019) [Artigo]
The annotation of large datasets is an issue whose challenge increases as the number of labeled samples available to train the classifier reduces in comparison to the amount of unlabeled data. In this context, semi-supervised ... -
Solving economic dispatch problem with valve-point loading effects and network constraints through gradient-based approach
Ricardo Pinheiro, B. N.M.; Nepomuceno, Leonardo (2018 13th IEEE International Conference on Industry Applications, INDUSCON 2018 - Proceedings, 2019) [Trabalho apresentado em evento]
The Economic Dispatch Problem with Valve-Point Loading Effects and AC Network Constraints (EDP-VPE-AC) is defined as a nonsmooth and nonconvex optimization problem. Due to nonsmothness of cost function, the gradient-based ... -
Study on the effect of the temperature in acoustic emission sensor by the pencil lead break test
Lopes, Barbara Guedes; Alexandre, Felipe Aparecido ; Lopes, Wenderson Nascimento ; Aguiar, Paulo Roberto De ; Bianchi, Eduardo Carlos ; Viera, Martin Antonio Aulestia (2018 13th IEEE International Conference on Industry Applications, INDUSCON 2018 - Proceedings, 2019) [Trabalho apresentado em evento]
The Pencil Lead Break (PLB) method is used to reproduce an artificial source of acoustic emission. This method consists of breaking a pencil lead which has its size and thickness determined carefully in a certain angle in ... -
A performance evaluation of electromagnetic time reversal method for locating faults in branched cable networks
Junior, Pedro Da Costa; De Souza, Andre Nunes ; Martins, Andre Christovao Pio (2018 13th IEEE International Conference on Industry Applications, INDUSCON 2018 - Proceedings, 2019) [Trabalho apresentado em evento]
The post-failure impedance estimative method is one of the most used ways to locate faults in distribution systems. However, the presence of the distributed generation can degrade the precision of this kind of procedure. ... -
A Time-Frequency Acoustic Emission-Based Technique to Assess Workpiece Surface Quality in Ceramic Grinding with PZT Transducer
(Sensors (Basel, Switzerland), 2019) [Artigo]Innovative monitoring systems based on sensor signals have emerged in recent years in view of their potential for diagnosing machining process conditions. In this context, preliminary applications of fast-response and ... -
Solving large-scale reactive optimal power flow problems by a primal–dual M 2BF approach
Pinheiro, Ricardo B. N. M.; Nepomuceno, Leonardo ; Balbo, Antonio R. (Optimization and Engineering, 2019) [Artigo]
In this paper, we propose a predictor–corrector primal–dual approach for the doubly modified logarithmic barrier function (M 2BF) method in order to solve Optimal Reactive Power Flow (ORPF) problems. The M 2BF is a ... -
Solving network-constrained nonsmooth economic dispatch problems through a gradient-based approach
Pinheiro, Ricardo B.N.M.; Balbo, Antonio R. ; Nepomuceno, Leonardo (International Journal of Electrical Power and Energy Systems, 2019) [Artigo]
The Network-Constrained Nonsmooth Economic Dispatch (NCNS-ED) is formulated as a nonsmooth, nonconvex and multimodal optimization problem. Nonsmoothness is generally associated with valve-point loading effects in the cost ... -
Comparative analysis of signal processing techniques for impedance-based SHM applications in noisy environments
de Castro, Bruno Albuquerque; Baptista, Fabricio Guimarães ; (Mechanical Systems and Signal Processing, 2019) [Artigo]
Structural health monitoring (SHM) systems have been extensively studied in recent decades to determine the health statuses of mechanical, naval and aerospace engineering components. Currently, one of the most promising ... -
New signal processing approach for structural health monitoring in noisy environments based on impedance measurements
de Castro, Bruno Albuquerque; Baptista, Fabricio Guimarães ; (Measurement: Journal of the International Measurement Confederation, 2019) [Artigo]
The electro-mechanical impedance (EMI) technique is one of the most promising structural health monitoring (SHM) approaches for material damage detection, which is based on impedance measurements of low-cost piezoelectric ... -
Dressing tool condition monitoring through impedance-based sensors: Part 1—pzt diaphragm transducer response and emi sensing technique
Junior, Pedro; ; Aguiar, Paulo R. ; (Sensors (Switzerland), 2018) [Artigo]
Low-cost piezoelectric lead zirconate titanate (PZT) diaphragm transducers have attracted increasing attention as effective sensing devices, based on the electromechanical impedance (EMI) principle, for applications in ... -
Dressing tool condition monitoring through impedance-based sensors: Part 2—neural networks and K-nearest neighbor classifier approach
Junior, Pedro; ; Aguiar, Paulo ; (Sensors (Switzerland), 2018) [Artigo]
This paper presents an approach for impedance-based sensor monitoring of dressing tool condition in grinding by using the electromechanical impedance (EMI) technique. This method was introduced in Part 1 of this work and ... -
Inferential measurement of the dresser width for the grinding process automation
Ferreira, Fabio Isaac; de Aguiar, Paulo Roberto ; Lopes, Wenderson Nascimento ; ; ; Bianchi, Eduardo Carlos ; (International Journal of Advanced Manufacturing Technology, 2019) [Artigo]
Dressing is an essential process for the machining industries. The grinding community keeps the slogan “grinding is dressing,” given the importance of this reconditioning process. This paper presents a methodology for ... -
Deterministic approach for solving multi-objective non-smooth Environmental and Economic dispatch problem
Gonçalves, Elis; Balbo, Antonio Roberto ; ; Nepomuceno, Leonardo ; Baptista, Edméa Cássia ; Soler, Edilaine Martins (International Journal of Electrical Power and Energy Systems, 2019) [Artigo]
The Environmental and Economic Dispatch Problem with Valve-Point loading effect representation (EEDP-VP) is a multi-objective, nonconvex and non-differentiable optimization problem. Due to these difficulties, it has been ... -
A New Intelligent System Architecture for Energy Saving in Smart Homes
Juvenil Ayres, Rodrigo Moura; Souza, Andre Nunes de ; ; ; Ikeshoji, Marco Akio ; Santana, Gustavo Vinicius ; ; (2018 13th Ieee International Conference On Industry Applications (induscon), 2018) [Trabalho apresentado em evento]
Technologies to support the development of smarter energy systems and increase the opportunities for home energy management have increased in recent years. Through the addition of sensing, communication and drive components, ... -
A New Approach for Teaching Power Electronics in Electrical Engineering Courses
Riehl, Rudolf Ribeiro; Covolan Ulson, Jose Alfredo ; Andreoli, Andre Luiz ; Alves, Alceu Ferreira ; (2014 17th International Conference On Electrical Machines And Systems (icems), 2014) [Trabalho apresentado em evento]
This work presents a new approach for teaching activities at the Laboratory of Power Electronics, at the Undergraduate Electrical Engineering course of the Faculty of Engineering Bauru (UNESP). The proposal is to develop ... -
A Simplified Approach for Identification of Parasitic Capacitances in Three-Phase Induction Motor Driven by PWM Inverter
Riehl, Rudolf Ribeiro; Covolan Ulson, Jose Alfredo ; Andreoli, Andre Luiz ; Alves, Alceu Ferreira ; (2014 17th International Conference On Electrical Machines And Systems (icems), 2014) [Trabalho apresentado em evento]
The identification of parasitic capacitances of three-phase induction motor for studying electromagnetic interference (EMI) when it driven by PWM inverters are generally performed in laboratories by using LCR bridges. The ... -
A Performance Evaluation of Electromagnetic Time Reversal Method for Locating Faults in Branched Cable Networks
Costa Junior, Pedro da; Souza, Andre Nunes de ; Pio Martins, Andre Christovao ; ; (2018 13th Ieee International Conference On Industry Applications (induscon), 2018) [Trabalho apresentado em evento]
The post-failure impedance estimative method is one of the most used ways to locate faults in distribution systems. However, the presence of the distributed generation can degrade the precision of this kind of procedure. ... -
Evaluation of grinding process using simultaneously MQL technique and cleaning jet on grinding wheel surface
Rodriguez, Rafael Lemes; Lopes, Jose Claudio ; Hildebrandt, Rodolfo Alexandre ; Vaz Perez, Ricardo Rozo ; ; Angelo Sanchez, Luiz Eduardo de ; ; Mello, Hamilton Jose de ; Aguiar, Paulo Roberto de ; Bianchi, Eduardo Carlos (Journal Of Materials Processing Technology, 2019) [Artigo]
In the last years, many researchers have proposed improvements to the minimum quantity lubrication (MQL) technique, in order to increase its efficiency and make it a viable alternative to the conventional application of ... -
A Probabilistic Optimum-Path Forest Classifier for Non-Technical Losses Detection
; ; ; Souza, Andre N.; Gastaldello, Danilo S. ; Papa, Joao P. (Ieee Transactions On Smart Grid, 2019) [Artigo]
Probabilistic-driven classification techniques extend the role of traditional approaches that output labels (usually integer numbers) only. Such techniques are more fruitful when dealing with problems where one is not ... -
Application of a wheel cleaning system during grinding of alumina with minimum quantity lubrication
Lopes, Jose C.; ; Fernandes, Lucas de M. ; Tavares, Andre B. ; Sanchez, Luiz E. A. ; Mello, Hamilton J. de ; Aguiar, Paulo R. de ; Bianchi, Eduardo C. (International Journal Of Advanced Manufacturing Technology, 2019) [Artigo]
High thermal loads generated during grinding of ceramic materials increase abrasive tool wear and damage workpiece quality. In this regard, the application of cutting fluid has been mandatory, although several researchers ...