Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Ramiro S. Barbosa"'
Publikováno v:
Energies, Vol 17, Iss 11, p 2582 (2024)
In recent times, renewable energy sources have gained considerable vitality due to their inexhaustible resources and the detrimental effects of fossil fuels, such as the impact of greenhouse gases on the planet. This article aims to be a supportive t
Externí odkaz:
https://doaj.org/article/a7b575629db54fe3a3c5c1d574c84b14
Autor:
Ramiro S. Barbosa, Isabel S. Jesus
Publikováno v:
Algorithms, Vol 16, Iss 1, p 35 (2023)
The PID is the most common type of algorithm used in control system applications [...]
Externí odkaz:
https://doaj.org/article/79d24954ed8d4abe86c66beeeb6e7968
Autor:
Bruno E. Silva, Ramiro S. Barbosa
Publikováno v:
Applied Sciences, Vol 11, Iss 6, p 2535 (2021)
In this article, we designed and implemented neural controllers to control a nonlinear and unstable magnetic levitation system composed of an electromagnet and a magnetic disk. The objective was to evaluate the implementation and performance of neura
Externí odkaz:
https://doaj.org/article/a9d1ec9b70064e418d5ad6e1473d6480
Autor:
Bruno E. Silva, Ramiro S. Barbosa
Publikováno v:
Hybrid Intelligent Systems ISBN: 9783030730499
HIS
HIS
In this paper we investigate the use of inverse neural models to control a nonlinear and unstable magnetic levitation system composed of an electromagnet and a magnetic disk. The neural controllers are tested and analyzed on a low-cost Arduino contro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9dcbd275b3ea8a968ffd95d43433843f
https://doi.org/10.1007/978-3-030-73050-5_25
https://doi.org/10.1007/978-3-030-73050-5_25
Autor:
Ramiro S. Barbosa
Publikováno v:
2020 XIV Technologies Applied to Electronics Teaching Conference (TAEE).
Educational hardware kits are a good resource for reinforcing the concepts taught in the theoretical classes. This paper shares the experience of introducing an educational lab kit, called electronic thermal regulation system (SERT), in the curricula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49e90d1d812d213c26c7a7a3294969d4
https://doi.org/10.1109/taee46915.2020.9163746
https://doi.org/10.1109/taee46915.2020.9163746
Autor:
Helena Bras, Isabel Figueiredo, Alexandra Gavina, Alzira Faria, Amelia Caldeiira, Ramiro S. Barbosa
Publikováno v:
EDUCON
When students integrate the higher education system, they start a new learning stage. A good integration plays an important role in the level of success, satisfaction and development of students. In this paper, we describe a project that promotes a b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01a2d9d9b4a51b5fb90b616e1841f09f
https://doi.org/10.1109/educon45650.2020.9125137
https://doi.org/10.1109/educon45650.2020.9125137
Publikováno v:
Journal of Robotics, Vol 2012 (2012)
This paper presents a climbing robot with wheeled locomotion and adhesion through permanent magnets, developed with the intention of being used in the inspection of different types of man-made ferromagnetic structures, such as towers for wind turbine
Externí odkaz:
https://doaj.org/article/6e077eb360774c83a1704e473bfc2246
Autor:
Isabel S. Jesus, Ramiro S. Barbosa
Publikováno v:
AEU - International Journal of Electronics and Communications. 78:54-63
The fractional calculation is over 300 years old, but only in the last decades its application arisen in many areas of science and engineering. The explanation for this expansion in the scientific and tecnologic worlds is due to the good results obta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5e802b685853000ae1779071dcc40a0
https://doi.org/10.1016/j.aeue.2017.05.014
https://doi.org/10.1016/j.aeue.2017.05.014
Autor:
Ramiro S. Barbosa, Isabel S. Jesus
Publikováno v:
Hybrid Intelligent Systems ISBN: 9783030143466
HIS
HIS
This article investigates the use of fuzzy algorithms for fractional PID control systems. The tuning of the fuzzy controllers is based on the prior knowledge of integer or fractional-order control strategy. The suggested fuzzy controllers are fine tu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80eed302b894c8b77719bb0846066e86
https://doi.org/10.1007/978-3-030-14347-3_42
https://doi.org/10.1007/978-3-030-14347-3_42
Analysis of a Fractional-Order Nonlinear System with Hysteresis Nonlinearity via Describing Function
Publikováno v:
Journal of Applied Nonlinear Dynamics. 4:81-89
The describing function(DF) is one method often used for the analysis of nonlinear systems and the prediction of limit-cycles. In this study, we explore the DF using frequency response methods in order to analyze the effectiveness of this technique i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef048140271398d0128ed113d1049be4
https://doi.org/10.5890/jand.2015.03.007
https://doi.org/10.5890/jand.2015.03.007