A5037828823- Electric Power System Optimization
- Antenna Design and Analysis
- Wireless Body Area Networks
- Energy Load and Power Forecasting
- Agricultural and Food Sciences
- Healthcare Regulation
- Education and Digital Technologies
- Power System Reliability and Maintenance
- Advanced Antenna and Metasurface Technologies
- Optimal Power Flow Distribution
- Berry genetics and cultivation research
- Education during COVID-19 pandemic
- Logistics and Infrastructure Analysis
- Face and Expression Recognition
- Engineering Diagnostics and Reliability
- Health, Education, and Aging
- Advanced Data Processing Techniques
- Time Series Analysis and Forecasting
- Smart Parking Systems Research
- Child Nutrition and Feeding Issues
- Smart Grid Energy Management
- Auction Theory and Applications
- Healthcare during COVID-19 Pandemic
- Electricity Theft Detection Techniques
- Environmental and biological studies
Universidade Estadual do Maranhão
2017-2024
Universidade Federal do Maranhão
2014-2023
INESC TEC
2015
Abstract In this work, it is proposed the development a new monopole directional antenna, bioinspired in elliptical leaf, with cut by golden ratio, for 4G band application, use of technique radiating element increasing antenna perimeter, being first work to promotes resonance frequency turned, and reconfiguring parameters as bandwidth, radiation pattern gain, reflector near group plane, without insertion active devices pin diode or change element. The shape generated Gielis formula, built...
The uncertainty associated with the increasingly wind power penetration in systems must be considered when performing traditional day-ahead scheduling of conventional thermal units. This can represented through a set representative scenarios that take into account time-dependency between forecasting errors. To create robust Unit Commitment (UC) schedules, it is widely seen all possible used. However, using realizations might poor approach and important savings computational effort achieved...
This paper presents the characterization of dielectric properties (dielectric permittivity and loss factor) Tommy Atkins mango (Mangifera indica L), a fruit produced in several regions Brazil, great economic importance. The fruits were characterized according to their maturation index, by probe method, identified yellowish tone bark. results allowed correlating characteristics with physicochemical transformations that occurred process Tommy. It was also verified greater variation frequencies...
Flexibility in power systems with high penetration of wind is the most important factor required for maintaining generation capacity and load balance. Generating reserves play a key role this new scenario. These must be available not only terms quantity, but particularly their ability to provide suitable response rate compatible variations generation, as well phenomenon ramps. The generating units responsible AGC may able compensate variation power. Taking into account, redispatched keep...
A flower-shape bio-inspired aperture-coupled antenna array for on-chip application, generated by Gielis formula, operating in industrial, scientific and medical (ISM) band at 60 GHz (57 GHZ to 64 GHz) is presented this paper. The proposed composed of a transmission feed line followed an aperture patch element built aluminum, with 2 micrometers thickness, lying on two layers silicon 200 thickness each. Dimensions the antennas were calculated according effective wavelength resonance frequency...
O processo criativo é de extrema importância para o desenvolvimento uma sociedade, sendo assim, das funções instituições escolares proporcionar à assistência aos discentes no suas habilidades pensar, modo inventivo, em prol resolver problemas que surgem cotidiano., com a experiência direta na resolução problemas, somada intuição, tentativa e erros, elaboração objetos, fez surgir movimento maker, qual possui como objetivo estimular inteligência colaborativa, criatividade questão prática...
do nordeste brasileiro.Os resultados mostram a percepção de risco da perspectiva gerador e eficiência algoritmo proposto como suporte à tomada decisão.
A cerveja artesanal tem conquistado uma posição proeminente no mercado brasileiro. Por se tratar de um produto que preza pela qualidade, variabilidade e com constante expansão mercado, a atraído público intensifica cada vez mais o rigor em suas escolhas consumo. Este empreendimento envolve processo complexo produção, distribuição gestão, exigindo planejamento minucioso, avaliações análises financeiras para competir forma eficaz atender às expectativas dos consumidores. O presente trabalho...
Ao passo que a Indústria 4.0 avança, conjuntos de ações automação e controle vem sendo implementados. Dentro deste contexto o sensoriamento motores indução trifásicos se tornando remoto conectado à internet. A manutenção preventiva pode então utilizar esse grande volume dados para aumentar sua capacidade detecção falhas em relação aos métodos clássicos classificação. Este trabalho propõe desenvolvimento um identificador diferentes condições, entre normalidade, desbalanceamento no rotor,...
Com avanço da tecnologia e o grande volume de conteúdos na web nas últimas décadas, tem-se ampliado a utilização fresadoras CNC (Comando Numérico Computadorizado) no meio industrial, ganhando considerável atencão fabricação peças. Este artigo propõe construcão um protótipo acessível baixo investimento destinado à PCI (placas circuito impresso) fim instigar fortalecimento acadêmico do ensino aprendizagem em cursos robótica educacional, contribuindo para novas prototipagens custo. Como...
Abstract In this work, it is proposed the development a monopole directional antenna, bioinspired in elliptical leaf, with aperture by golden ratio, for 4G band application. The shape antenna generated Gielis formula, built FR4 substrate, apertures calculated increasing perimeter, and to turner resonance frequency. To compare results of on sheet, square-shaped was designed, simulated measured, structures were designed MATLAB program simulations performed Ansys program. compared between...