FarmWeb-an integrated, modular farm automation system. - David John Turnell; Maria de F. Q. V. Turnell; Gurdip Singh Deep; R. C. S. Freire (SMC, 1998)

A feedback I2-controlled constant temperature solar radiation meter. - Amauri Oliveira; Gurdip Singh Deep; Antonio Marcus Nogueira de Lima; Raimundo Carlos Silvério Freire (IEEE Trans. Instrum. Meas., 1998)

Thermodynamic modeling of a thermoresistive sensor using electrical power. - Gurdip Singh Deep; Amauri Oliveira; R. C. S. Freire; Jose Sérgio de Rocha Neto; M. B. M. França (ICECS, 1999)

Feedback control method for estimating the oxygen uptake rate in activated sludge systems. - Sebastian Yuri Cavalcanti Catunda; Gurdip Singh Deep; Adrianus C. van Haandel; Raimundo Carlos Silvério Freire (IEEE Trans. Instrum. Meas., 1999)

Error in the thermoresistive sensor-based feedback measurement configuration due to DC amplifier offset voltage. - Raimundo Carlos Silvério Freire; Gurdip Singh Deep (IEEE Trans. Instrum. Meas., 1999)

A hysteresis model for a vanadium dioxide transition-edge microbolometer. - Luiz Alberto Luz de Almeida; Gurdip Singh Deep; Antonio Marcus Nogueira de Lima; Franz Helmut Neff; Raimundo Carlos Silvério Freire (IEEE Trans. Instrum. Meas., 2001)

Hot-wire anemometer with temperature compensation using only one sensor. - Rômulo Pires Coelho Ferreira; Raimundo Carlos Silvério Freire; Gurdip Singh Deep; Jose Sérgio de Rocha Neto; Amauri Oliveira (IEEE Trans. Instrum. Meas., 2001)

Designing a programmable analog signal conditioning circuit without loss of measurement range. - Sebastian Yuri Cavalcanti Catunda; Jean-François Naviner; Gurdip Singh Deep; Raimundo Carlos Silvério Freire (IEEE Trans. Instrum. Meas., 2003)

Performance evaluation of a fluid temperature-compensated single sensor constant temperature anemometer. - Rômulo Pires Coelho Ferreira; Raimundo Carlos Silvério Freire; Gurdip Singh Deep (IEEE Trans. Instrum. Meas., 2003)

A novel approach to reduce interconnect complexity in ANN hardware implementation. - Luiz Brunelli; Elmar U. K. Melcher; Alisson Vasconcelos de Brito; Raimundo C. S. Freire (IJCNN, 2005)

Testing system-on-a-chip using artificial immune system. - Cleonilson Protásio de Souza; Raimundo Carlos Silvério Freire; Francisco Marcos de Assis (SoCC, 2005)

FPGA architecture for object segmentation in real time. - Jozias Parente de Oliveira; André Luiz Printes; Raimundo Carlos Silvério Freire; Elmar Uwe Kurt Melcher; Ivan Sebastiao de Souza e Silva (EUSIPCO, 2006)

FPGA architecture for static background subtraction in real time. - Jozias Oliveira; André Printes; R. C. S. Freire; Elmar U. K. Melcher; Ivan S. S. Silva (SBCCI, 2006)

An Adaptive Algorithm Based On The Sigmoidal Function. - Ewaldo Eder Santana; José C. Príncipe; Allan Kardec Barros; R. C. S. Freire (SBRN, 2006)

On-line Algorithm for Extraction of Specific Signals with Temporal Structure. - Ewaldo Eder Santana; André Borges Cavalcante; Marcio de O. Santos; Allan Kardec Barros; R. C. S. Freire (ICONIP (2), 2007)

On The Time Constant Under General Error Criterion. - Ewaldo Eder Carvalho Santana; Allan Kardec Barros; Raimundo C. S. Freire (IEEE Signal Process. Lett., 2007)

DC-Amplifier-Input-Offset-Voltage Control in a Constant-Temperature Thermoresistive-Sensor-Measurement Instrument. - Gisele Azevedo Araújo; Raimundo Carlos Silvério Freire; José F. da Silva; Sebastian Yuri Cavalcanti Catunda; Glauco Fontgalland (IEEE Trans. Instrum. Meas., 2007)

Circuit Testing Using the Principles of Self-Nonself Discrimination. - Cleonilson Protásio de Souza; Francisco Marcos de Assis; Raimundo Carlos Silvério Freire (IEEE Trans. Instrum. Meas., 2008)

On the Influence of Low Frequency Components in the Weight Behaviour of the LMS Algorithm. - D. S. Brito; R. C. S. Freire; Enio Aguiar; Fausto Lucena; Allan Kardec Barros (BIOSIGNALS, 2009)

Comparative analysis of tactile sensitivity between blind, deaf and unimpaired people. - Ilton L. Barbacena; Ana Carolina Oliveira Lima; Alessio T. Barros; Raimundo C. S. Freire; Jose R. Pereira (Int. J. Adv. Media Commun., 2009)

Influence of low frequency noise in adaptive estimation using the LMS algorithm. - D. S. Brito; Enio Aguiar; Fausto Lucena; R. C. S. Freire; Yoshifumi Yasuda; Allan Kardec Barros (Signal Process., 2009)

Applications of Thermoresistive Sensors Using the Electric Equivalence Principle. - Raimundo Carlos Silvério Freire; Sebastian Yuri Cavalcanti Catunda; Benedito A. Luciano (IEEE Trans. Instrum. Meas., 2009)

Optimization of control switch for energy harvest circuit using electrostatic charges. - Helder R. Florentino; Raimundo C. S. Freire; Caio Florentino (APCCAS, 2010)

A New Built-in TPG Based on Berlekamp-Massey Algorithm. - Cleonilson Protásio de Souza; Francisco Marcos de Assis; Raimundo Carlos Silvério Freire (J. Electron. Test., 2010)

A New Architecture of Test Response Analyzer Based on the Berlekamp-Massey Algorithm for BIST. - Cleonilson Protásio de Souza; Francisco Marcos de Assis; Raimundo Carlos Silvério Freire (IEEE Trans. Instrum. Meas., 2010)

Extraction of signals with specific temporal structure using kernel methods. - Eder Santana; José C. Príncipe; Ewaldo Eder Carvalho Santana; Raimundo Carlos Silvério Freire; Allan Kardec Barros (IEEE Trans. Signal Process., 2010)

Electrostatic vibration energy harvester with piezoelectric start-up generator. - Helder R. Florentino; Raimundo C. S. Freire; Alan V. S. Sà; Caio Florentino; Dimitri Galayko (ISCAS, 2011)

A concurrent dualband distributed impedance-matching network. - Fabricio G. S. Silva; Robson Nunes de Lima; Samy M. Nascimento; Raimundo Carlos Silvério Freire (SBCCI, 2011)

Wireless system for detecting high intensity current impulses applied to ground grids. - M. S. de Castro; R. C. S. Freire; Edson Guedes da Costa; N. S. S. da Fonseca; M. A. O. Rodrigues; Euler C. T. de Macedo; Juan M. M. Villanueva (I2MTC, 2013)

Wind speed measurement based on ultrasonic sensors using Discrete Fourier Transform. - Maxwell M. Costa; Raimundo Carlos Silvério Freire; Sebastian Y. C. Catunda; Juan Moises Maurício Villanueva (I2MTC, 2013)

8-bit folding ADC based on switched capacitor. - Wendell E. M. Costa; Sabiniano A. Rodrigues; Raimundo C. S. Freire; Sebastian Y. C. Catunda; Fernando Rangel de Sousa (I2MTC, 2013)

The influence of void configuration in statistical parameters of partial discharge signals. - Euler C. T. de Macedo; Juan Moises Maurício Villanueva; Edson C. Guedes; Raimundo C. S. Freire; José M. R. de Souza Neto; Ian A. Glover (I2MTC, 2013)

An experiment set-up for analysis of lateralization judgments of binaural stimuli. - J. S. Nogueira; Ana Isabela Araújo Cunha; M. C. B. F. M. Braghiroli; R. C. S. Freire (I2MTC, 2013)

Wind speed measurement based on time-of-flight estimation using Extended Kalman Filter. - Juan Moises Maurício Villanueva; Sebastian Y. C. Catunda; Raimundo Carlos Silvério Freire; Maxwell M. Costa; Nestor S. Castro Ingaroca (I2MTC, 2013)

A 400 MHz reconfigurable injection-locking based RC oscillator for ASK/FSK modulation. - Karolinne Brito; Fernando Rangel de Sousa; Victor Ariel Leal Sobral; Robson Nunes de Lima; Raimundo Carlos Silvério Freire (SBCCI, 2013)

A 433/915-MHz class AB discrete power amplifier based on multiresonant circuits. - Fabricio G. S. Silva; Robson Nunes de Lima; Raimundo C. S. Freire (SBCCI, 2013)

A Switchless Multiband Impedance Matching Technique Based on Multiresonant Circuits. - Fabricio G. S. Silva; Robson Nunes de Lima; Raimundo Carlos Silvério Freire; Calvin Plett (IEEE Trans. Circuits Syst. II Express Briefs, 2013)

A controlled-temperature hot-wire anemometer with voltage feedback linearization. - Leonardo V. Araujo; Sebastian Y. C. Catunda; Carlos Eduardo Trabuco Dórea; R. C. S. Freire (I2MTC, 2014)

Evaluation of wavelet analysis performance in multiphase level measurement using ultrasonic sensors. - Karolie Nobre Dantas Grassi; Raimundo Carlos Silvério Freire; Juan Moises Maurício Villanueva (I2MTC, 2014)

Output dynamic range of radiometers based on thermoresistive sensors. - Vanuza M. Nascimento; Thais L. V. N. Silva; Viviane S. G. Martins; Petrov C. Lobo; Raimundo C. S. Freire (I2MTC, 2014)

GF(24) multiplier in hardware using discrete neural network. - Vanderson Lima Reis; Wendell E. M. Costa; Raimundo C. S. Freire; Francisco M. de Assis; Ewaldo Eder Santana (I2MTC, 2014)

Measuring the excitation current in transformers using hall effect sensors. - Vanderson Lima Reis; Raimundo C. S. Freire; Benedito A. Luciano; Petrov C. Lobo; Ewaldo Eder Santana (I2MTC, 2014)

Energy harvesting using magnetic induction considering different core materials. - Maraiza Prescila dos Santos; Debora Albuquerque Vieira; Yuri Percy Molina Rodriguez; Cleonilson Protásio de Souza; Tarcisio O. de Moraes; Raimundo C. S. Freire (I2MTC, 2014)

Ultrasonic time-of-flight estimation based on maximum likelihood data fusion using triangular distribution. - Lucas de Morais Toledo; Juan Moises Maurício Villanueva; Sebastian Yuri Cavalcanti Catunda; Raimundo Carlos Silvério Freire (I2MTC, 2014)

Architectural specification for infusion pumps and realization towards safety technological trends. - Sidney A. Rodrigues; Raimundo C. S. Freire; Benedito A. Luciano; Paulo E. S. Barbosa; Antonio D. S. Junior; Sebastian Yuri Cavalcanti Catunda (MeMeA, 2014)

Correction of the Fundamental Voice Frequency Using Tactile and Visual Feedback. - Rodrigo Leone Alves; Carlos M. G. S. Lima; Raimundo C. S. Freire (ASSETS, 2015)

SPICE-based dynamical model of a NTC thermoresistive sensor for anemometer applications. - Leonardo V. Araujo; Sebastian Y. C. Catunda; Diomadson Belfort; Matthieu Denoual; Raimundo C. S. Freire (I2MTC, 2015)

An automatic voltage disturbance classification system based on Clonal Selection Algorithm. - Bruno Willian de Souza Arruda; Raimundo Carlos Silvério Freire; Cleonilson Protásio de Souza (I2MTC, 2015)

Design of an experimental methodology for generation of partial discharges signals. - Euler C. T. de Macedo; Juan M. M. Villanueva; Edson Guedes da Costa; Raimundo C. S. Freire; José M. R. de Souza Neto (I2MTC, 2015)

Measurement equipment for characterization of ferromagnetic materials. - Tarcisio Oliveira de Moraes; Raimundo Carlos Silvério Freire; Debora Albuquerque Vieira; Cleonilson Protásio de Souza (I2MTC, 2015)

Using synchronism pulse to improve A2I implementations. - Vanderson Lima Reis; Edmar C. Gurjao; Raimundo C. S. Freire (I2MTC, 2015)

Analysis and System-Level Design of a High Resolution Incremental ΣΔ ADC for Biomedical Applications. - Antonio Wallace Antunes Soares; Diomadson R. Belfort; Sebastian Yuri Cavalcanti Catunda; Raimundo Carlos Silvério Freire (SBCCI, 2015)

A thermoelectric module thermal-cycling testing platform with automated measurement capabilities. - Hugo Cesar Rocha Liborio Tenorio; Debora Albuquerque Vieira; Cleonilson Protásio de Souza; Euler Cassio Tavares de Macedo; Raimundo Carlos Silvério Freire (I2MTC, 2016)

Augmented RFID Tags. - Smaïl Tedjini; Gianfranco Andia Vera; Marcos E. P. Zurita; Raimundo C. S. Freire; Yvan Duroc (WiSNet, 2016)

A Review of Implementing ADC in RFID Sensor. - Marcos E. P. Zurita; Raimundo Carlos Silvério Freire; Smail Tedjini; S. A. Moshkalev (J. Sensors, 2016)

Non-uniform sampling based ADC architecture using an adaptive level-crossing technique. - Veronica Maria Lima Silva; Antonio Augusto Lisboa de Souza; Sebastian Yuri Cavalcanti Catunda; Raimundo Carlos Silvério Freire (I2MTC, 2017)

A testing approach for a configurable RMPI-based Analog-to-Information Converter. - Veronica M. L. Silva; Bruno Willian de Souza Arruda; Cleonilson Protásio de Souza; Edmar C. Gurjao; Vanderson L. Reis; Raimundo C. S. Freire (I2MTC, 2018)

A 2.45 GHz CMOS active quasi-circulator with a built-in rectifier. - Karolinne B. Brito; Robson Nunes de Lima; Volker Kible; Raimundo C. S. Freire (LASCAS, 2018)

A based microcontroller technique to achieve capacitive multisensing in passive RFID UHF tags. - Newton Fonseca; Raimundo C. S. Freire; Glauco Fontgalland; Abanob Abdelnour; Ahmed Rennane; Smail Tedjini (RFID, 2018)

Wearable Koch Pre-Fractal Antennas for Ultrahigh Frequency Band. - Arianne dos Santos Ferreira Evangelista; Paulo Fernandes da Silva Júnior; Ewaldo Eder Carvalho Santanta; Mauro Sérgio Pinto Silva; Raimundo Carlos Silvério Freire; Alexandre Jean René Serres; Jalberth Fernandes de Araújo; Maciel A. Oliveira; Paulo Henrique da Fonseca Silva (I2MTC, 2019)

Monitoring an Environment Using Wireless Sensor Network. - Rayanne Maria Cunha Silveira; Thalyson Danilo Rocha Dutra; Francisco Paulo Roberto Sampaio Alves; Allyx Fontaine; Thierry Desjardins; Raimundo C. S. Freire; Allan K. D. Barros; Ewaldo Eder Carvalho Santana (INSCI, 2019)

Estimation of Channel Delay in Analog-to-Information Converters. - Bruno Willian de Souza Arruda; Edmar Candeia Gurjão; Luis F. N. M. Torres; Vanderson L. Reis; Raimundo C. S. Freire (ISCAS, 2019)

A Method for Anomaly Prediction in Power Consumption using Long Short-Term Memory and Negative Selection. - Andresso da Silva; I. S. Guarany; B. Arruda; Edmar Candeia Gurjão; R. C. S. Freire (ISCAS, 2019)

Bio-Inspired Petal-Shape UWB Antenna for Indoor Applications. - Paulo Fernandes da Silva Júnior; Ewaldo Eder Carvalho Santana; Raimundo Carlos Silvério Freire; Paulo Henrique da Fonseca Silva; Almir Souza e Silva Neto (WorldCIST (3), 2019)

Bio-inspired Printed Monopole Antenna Applied to Partial Discharge Detection. - Josiel do Nascimento Cruz; Alexandre Jean René Serres; Adriano Costa de Oliveira; George Victor Rocha Xavier; Camila Caroline Rodrigues de Albuquerque; Edson Guedes da Costa; Raimundo Carlos Silvério Freire (Sensors, 2019)

Autorange Thermal Sigma-Delta Converter for Incident Radiation Measurement. - Bruno Augusto Ferreira Vitorino; Sebastian Yuri Cavalcanti Catunda; Diomadson Rodrigues Belfort; Raimundo Carlos Silvério Freire (IEEE Trans. Instrum. Meas., 2019)

M-FABRIK: A New Inverse Kinematics Approach to Mobile Manipulator Robots Based on FABRIK. - Phillipe Cardoso Santos; Raimundo Carlos Silvério Freire; Elyson Adan Nunes Carvalho; Lucas Molina; Eduardo Oliveira Freire (IEEE Access, 2020)

Novel IEEE-STD-1241-Based Test Methods for Analog-to-Information Converter. - Veronica M. L. Silva; Cleonilson Protásio de Souza; Raimundo C. S. Freire; Bruno Willian de Souza Arruda; Edmar C. Gurjao; Vanderson L. Reis (IEEE Trans. Instrum. Meas., 2020)

Flexible Wearable Pre-fractal Antennas for Personal High-Temperature Monitoring. - Paulo Fernandes da Silva Júnior; Ewaldo Eder Carvalho Santana; Mauro Sérgio Pinto Silva; Raimundo C. S. Freire; Maciel A. de Oliveira; Glauco Fontgalland; Paulo Henrique da Fonseca Silva (Wirel. Pers. Commun., 2020)

Microstrip Patch Antenna Bioinspired in Primrose Flower for WLAN and Bluetooth Applications. - Dailan de Jesus Pereira Bernardes; Ewaldo Eder Carvalho Santana; Paulo Fernandes da Silva Júnior; Maciel A. Oliveira; Alexandre Jean René Serres; Raimundo Carlos Silvério Freire; Marlo Andrade Santos; Icaro Meneses Ferreira de Santana; Paulo Henrique da Fonseca Silva (I2MTC, 2021)

Autofocus Entropy Repositioning Method Bioinspired in the Magnetic Field Memory of the Bees Applied to Pollination. - Daniel de Matos Luna dos Santos; Ewaldo Eder Carvalho Santana; Paulo Fernandes da Silva Júnior; Jonathan Araujo Queiroz; João Viana da Fonseca Neto; Allan Kardec Barros; Carlos Augusto de Moraes Cruz; Vivianne S. Aquino; Luís S. O. Castro; Raimundo Carlos Silvério Freire; Paulo Henrique da Fonseca Silva (Sensors, 2021)

Compact Bioinspired Antenna for WLAN 5 GHz Application. - Paulo Fernandes da Silva Júnior; Ewaldo Eder Carvalho Santana; Carlos Augusto de Moraes Cruz; Vivianne S. Aquino; Luís S. O. Castro; Alexandre Jean René Serres; Raimundo C. S. Freire; Paulo Henrique da Fonseca Silva (Wirel. Pers. Commun., 2021)

Modality-Independent Placebo Device for Electrostimulation. - Graziella Bedenik; Matheus Souza 003; Elyson Adan Nunes Carvalho; Josimari DeSantana; José Carvalho-Filho; Raimundo C. S. Freire (I2MTC, 2022)

Analysis of Parameters Influence in a MOX Gas Sensor Model. - Graziella Bedenik; Matheus Souza 003; Elyson Adan Nunes Carvalho; Lucas Molina; Jugurta Montalvão; Raimundo C. S. Freire (I2MTC, 2022)

Two-Layers Workspace: A New Approach to Cooperative Object Transportation With Obstacle Avoidance for Multi-Robot System. - Stephanie Kamarry Alves De Sousa; Raimundo Carlos Silvério Freire; Elyson Adan Nunes Carvalho; Lucas Molina; Phillipe Cardoso Santos; Eduardo Oliveira Freire (IEEE Access, 2022)

Architecture of an Electrical Equivalence Pyranometer with Temperature Difference Analog Control. - Evandson Claude Seabra Dantas; José Taunaí Dantas Segundo; Sebastian Yuri Cavalcanti Catunda; Diomadson Rodrigues Belfort; Raimundo Carlos Silvério Freire; Paulo Fernandes da Silva Júnior (Sensors, 2022)

Diagnostic Classification of Cases of Canine Leishmaniasis Using Machine Learning. - Tiago S. Ferreira; Ewaldo Eder Carvalho Santana; Antônio F. L. Jacob Junior; Paulo Fernandes da Silva Júnior; Luciana S. Bastos; Ana L. A. Silva; Solange A. Melo; Carlos Augusto de Moraes Cruz; Vivianne S. Aquino; Luís S. O. Castro; Guilherme O. Lima; Raimundo C. S. Freire (Sensors, 2022)

Conception and Design of WSN Sensor Nodes Based on Machine Learning, Embedded Systems and IoT Approaches for Pollutant Detection in Aquatic Environments. - Yan Ferreira Da Silva; Raimundo Carlos Silvério Freire; João Viana da Fonseca Neto (IEEE Access, 2023)

Fully Automatic Visual Servoing Control for Underwater Vehicle Manipulator Systems Based on a Heuristic Inverse Kinematics. - Phillipe Cardoso Santos; Raimundo C. S. Freire; Elyson Adan Nunes Carvalho; Lucas Molina; Eduardo Oliveira Freire; Matheus C. Santos; Anthony Weir; Petar Trslic; Edin Omerdic; Gerard Dooly; Daniel Toal (J. Intell. Robotic Syst., 2023)

The Practical Application of Bio-Inspired PMA for the Detection of Partial Discharges in High Voltage Equipment. - Josiel do Nascimento Cruz; Alexandre Jean René Serres; Raimundo C. S. Freire; Edson Guedes da Costa; George Victor Rocha Xavier; Adriano Costa de Oliveira; Vladimir Cesarino de Souza; Pavlos I. Lazaridis (Sensors, 2023)

Oscillator With Love Wave Sensor for Biosensors. - Dailan de Jesus Pereira Bernardes; Ewaldo Eder Carvalho Santana; Raimundo Carlos Silvério Freire; Paulo Fernandes da Silva Júnior; Ollivier Tamarin (I2MTC, 2025)

Measurement Methodology: Thermoresistive Sensors, Electrical Equivalence Principle and Applications. - Sebastian Y. C. Catunda; Raimundo C. S. Freire (IEEE Instrum. Meas. Mag., 2025)