Anomaly detection based on intelligent techniques over a bicomponent production plant used on wind generator blades manufacturing

[ES] Los avances tecnológicos en general, y en el ámbito de la industria en particular, conllevan el desarrollo y optimización de las actividades que en ella tienen lugar. Para alcanzar este objetivo, resulta de vital importancia detectar cualquier tipo de anomalía en su fase más incipiente, contribuyendo, entre otros, al ahorro energético y económico, y a una reducción del impacto ambiental. En un contexto en el que se fomenta la reducción de emisión de gases contaminantes, las energías alternativas, especialmente la energía eólica, juegan un papel crucial. En la fabricación de las palas de aerogenerador se recurre comúnmente a materiales de tipo bicomponente, obtenidos a través del mezclado de dos substancias primarias. En la presente investigación se evalúan distintas técnicas inteligentes de clasificación one-class para detectar anomalías en un sistema de mezclado para la obtención de materiales bicomponente empleados en la elaboración de palas de aerogenerador. Para lograr los modelos[EN] Technological advances, especially in the industrial field, have led to the development and optimization of the activities that takes place on it. To achieve this goal, an early detection of any kind of anomaly is very important. This can contribute to energy and economic savings and an environmental impact reduction. In a context where the reduction of pollution gasses emission is promoted, the use of alternative energies, specially the wind energy, plays a key role. The wind generator blades are usually manufactured from bicomponent material, obtained from the mixture of two dierent primary components. The present research assesses dierent one-class intelligent techniques to perform anomaly detection on a bicomponent mixing system used on the wind generator manufacturing. To perform the anomaly detection, the intelligent models were obtained from real dataset recorded during the right operation of a bicomponent mixing plant. 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Metodología de reducción del tiempo de ajuste de controladores PID autoajustables basado en hiperesferas

[ES] Hoy en día, los controladores adaptativos son ampliamente utilizados en el control de una gran variedad de procesos industriales. En ese tipo de controladores destacan los reguladores PIDs autoajustables, por ser una solución robusta y de fácil implementación. Sin embargo, este tipo de controladores suelen caracterizarse por tener elevados tiempos de estabilización debido al proceso de identificación que ejecutan en paralelo. Por ello, en el presente trabajo de investigación se presenta un método basado en el uso de hiperesferas y centroides para reducir los tiempos de ajuste y mejorar el rendimiento del lazo de control en los algoritmos PID autoajustables.[EN] Nowadays, adaptive controllers are widely used to control a wide variety of industrial processes. In this kind of controllers selftuning PID highlight for being a robust and easy implementation solution. However, this type of controllers are usually characterized by large settling times, due to the identification process they execute in parallel. Therefore, this research work presents a method based on hyperspheres and centroids to reduce settling times and improve control loop performance in self-tuning PID algorithms

Preface

International Conference on Hybrid Artificial Intelligent Systems, HAIS 2018 (13th. Oviedo. 2018

Criatividade no Ensino Médio segundo seus estudantes

O estudo examinou a percepção de alunos do ensino médio quanto ao nível de sua criatividade, de seus professores e colegas, bem como a extensão em que práticas docentes utilizadas por seus professores contemplavam a criatividade. Participaram do estudo 217 alunos de uma escola particular de ensino, os quais responderam uma escala de avaliação do nível de criatividade, uma questão aberta e um inventário de práticas docentes. Os resultados revelaram que os alunos avaliaram-se como significativamente mais criativos do que seus professores e colegas, tendo ainda aproximadamente metade dos estudantes concordado total ou parcialmente que seus professores têm contemplado o desenvolvimento e a expressão do potencial criativo. Constatou-se também que os procedimentos pedagógicos com maiores médias foram estimular os alunos a analisar diferentes aspectos de um problema e levá-los a perceber pontos de vista divergentes sobre um tema em estudo