A5018371862- Advanced Control Systems Optimization
- Quantum chaos and dynamical systems
- Robotic Path Planning Algorithms
- Chaos control and synchronization
- Control and Dynamics of Mobile Robots
- Solar Radiation and Photovoltaics
- Fault Detection and Control Systems
- Stability and Control of Uncertain Systems
- Nonlinear Dynamics and Pattern Formation
- Biofuel production and bioconversion
- Fuzzy Logic and Control Systems
- Postharvest Quality and Shelf Life Management
- Microbial Metabolism and Applications
- Control Systems and Identification
- Spectroscopy and Chemometric Analyses
- Microbial Metabolites in Food Biotechnology
- Microbial Metabolic Engineering and Bioproduction
- Enzyme Catalysis and Immobilization
- Energy Load and Power Forecasting
- Enzyme Production and Characterization
- Photovoltaic System Optimization Techniques
- Adaptive Control of Nonlinear Systems
- Face and Expression Recognition
- Machine Fault Diagnosis Techniques
- Food composition and properties
Universidade Estadual de Santa Cruz
2012-2025
University of Eastern Finland
2023
Universidade Federal da Bahia
2019
Universidade Federal de Minas Gerais
2019
Instituto Federal da Bahia
2016
Institut national de recherche en informatique et en automatique
2010-2012
Instituto Tecnológico de Aeronáutica
2010-2012
Centre de Recherche en Informatique
2012
Brazil is the country with largest production of wind energy in Latin America. Moreover, it experienced a high growth 2016, especially its northeast region. However, generation has disadvantage intermittency. Therefore, one way to mitigate impacts this problem electric system operation by predicting speed. For purpose, work were applied two different methodologies, autoregressive integrated moving average and another based k-nearest neighbors technique. From predicted speed was possible...
This paper presents the design and simulation of a Mamdani-type fuzzy controller for maneuvering trajectory tracking nonholonomic mobile robot. The main attribute proposed is ability to consider both forward backward movements. (FB-Controller) compared another with similar design, but restriction moving only (F-Controller). comparison supported by simulations using kinematic dynamic models differential drive robot three case studies evidence advantages FB-Controller.
Este artigo trata do problema de regulação integral linear quadrática com rejeição distúrbios para uma classe sistemas lineares dicretos no tempo denominada sujeitos a saltos Markovianos. Para solução deste foi utilizada formulação baseada em estados aumentados e método dos mínimos quadrados ponderado restrito. Foram realizadas simulações demonstrar eficácia da ação na robustez regulador proposto.
This work presents an implementation of a predictive controller with nominal stability guarantee and feasibility, evaluating the alternating direction method multipliers (ADMM) to solve control problem.The is applied fast dynamic electromechanical system results obtained from simulated scenarios indicate that proposal feasible for embedded application.Resumo: Este trabalho apresenta uma implementação de um controlador preditivo com garantia estabilidade e factibilidade, avaliando o método...
Pectinases are enzymes used in several industrial processes. Seven agroindustrial wastes—jackfruit seed meal (Artocarpus heterophyllus), cocoa peel (Theobroma cacao), husks passion fruit (Passiflora edulis), mangosteen (Garcinia mangostana), malt residue (Hordeum vulgare) and the peach palm waste (Bactris gasipaes Kunth.)—were evaluated to produce a crude extract containing pectinase activity by Penicillium rolfsii CCMB 714. The jackfruit was chosen as best substrate for solid-state...
Industrialized powdered spices are widely used by the population in food preparation, although they associated with several health problems.In this work, six metals (Zn, Fe, Ca, Mg, Na, and K) were determined samples of dry industrialized that sprayed sold sachets.Flame atomic absorption (FAAS) emission (FAES) spectrometry to quantify digested obtained after acid decomposition a digester block.The following concentration ranges found for analyzed (mg Kg -1 ): Zn (<LQ-15.53),Fe...
This paper presents new hybrid fuzzy clustering algorithms. The aims of the proposed modifications are to provide robustness for initial cluster centers using Subtractive and reduce number iterations Fuzzy ckMeans center updating strategy. These applied in conventional algorithms: c-Means, Gustafson-Kessel Gath-Geva. methods Wisconsin Breast Cancer dataset results compare algorithms with their forms considering different validity indices classification accuracy.
This work presents a new method of stabilization for unstable periodic orbits continuous-time dynamical systems. The principle this is to use feedback term based on the difference between actual state value and future computed along trajectories uncontrolled system. To compute latter, an implicit Runge-Kutta ODE integration used, giving rise time-varying controller. stability control defined in terms Floquet theory conditions calculation monodromy matrix are presented. Numerical results...
This work presents a method for solar irradiance estimation based on Kalman filter systems subject to unknown inputs.A system composed of photovoltaic panel, dc-dc converter and load was modeled as state space input.The results the simulated case studies normalized root mean square error (nRMSE) between 0.93% 14.23% estimates, latter value corresponding that considers adverse situations in applications.In addition, proposed methodology also estimates output voltage (nRMSE 5.66% 13.15%)...