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)

An adaptive recursive algorithm based on non-quadratic function of the error. - Cristiane Cristina Sousa da Silva; Ewaldo Eder Santana; Enio Aguiar; Marcos A. F. de Araújo; Allan Kardec Barros (Signal Process., 2012)

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)