Control automatico de un sistema electrico mediante logica difusa

Substitution of fuzzy logic control in an electrical system normally controlled by proportional-integral frequency was studied and analyzed. A linear model of an electrical system, the concepts which govern the theory of fuzzy logic, and the application of this theory to systems control, are briefly presented. The methodology of fuzzy logic was then applied to develop a model for an electrical energy system. The results of the simulation demonstrated that fuzzy logic control eliminated the area frequency error and permitted that only the area experiencing an increase in charge responds to this variation. Based on the results, it is concluded that control based on fuzzy logic is simple, is easy to maintain, is of low cost, and can be used to substitute traditional velocity controllers.

Farmacología en la tercera edad: Medicamentos de uso continuo y peligros de la interacción medicamentosa

Introduction: It was observed a considerable growth of elderly people. They are who use more medicines. The physiological changes associated with the age advancing can make pharmacokinetic and pharmacodynamic alterations. The cognitive decline, physical limitations and associate chronic pathology affect the medications appropriately use ability. Aims: Based in a literature review, appoint the main pharmacological groups prescribed to the elderly and the drug-drug interaction risks. Conclusion: The most of elderly use continually at least 3 medicines, the most prescribed are to cardiovascular and psychic diseases treatment.

Entrenamiento continuo vs. interválico corriendo en piscina profunda: Efectos sobre la salud de las mujeres obesas

Objectives. To search intermittent and continous trainning (IT and CT, respectively) effects through deep water running for the control and prevention of excessive body fat accumulation and improvement of quality of life. Methods. Experimental study composed by 30 women, aged between 34 to 58 years old, during 12 weeks, three sessions per week, 47 minutes each. Body composition, cardiorespiratory condition and Quality of Life by WHOQOL-Brief were considered. Student's and Wilcoxon's non parametric tests were applied at 5% significance level. Results. With the only exception for social domain of quality of life, all investigated variables revealed improvement in both groups for IT in comparison to CT. Conclusion. Deep water running contributes to body fat reduction, physical fitness evolution and improvement of WHOQOL-Brief domains, regardless of the trainning type conducted. © 2012 Revista Andaluza de Medicina del Deporte.

A Disciplina história da matemática e a formação do professor de matematica: dados e circunstâncias de sua implantação na Universidade Estadual Paulista, campi de Rio Claro, São José do Rio Preto e Presidente Prudente

Pós-graduação em Educação Matemática - IGCE

A noção de função em Frege

Pós-graduação em Educação Matemática - IGCE

Uma aplicação da lógica Fuzzy

Pós-graduação em Matemática Universitária - IGCE

Sobre quantificadores: uma formalização do quantificador 'quase sempre'

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Sobre o uso da função proposicional e sua gênese segundo a epistemologia genética

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Teoria de conjuntos fuzzy e aplicações

Pós-graduação em Matemática Universitária - IGCE

O conceito assunto na arquivística: uma reflexão em arquivos permanentes a partir do evento - I soggetti e altri apparati di indicizzazione in archivistica: ipotesi di lavoro

Pós-graduação em Ciência da Informação - FFC

A lógica no desenvolvimento da competência argumentativa

Pós-graduação em Educação Matemática - IGCE

Análise Bayesiana de dados composicionais na presença de covariáveis

Pós-graduação em Matematica Aplicada e Computacional - FCT

Inferência bayesiana não-paramétrica para elicitação da função de contabilidade

Pós-graduação em Matematica Aplicada e Computacional - FCT

Matematica e lingua materna: um estudo sobre utilização conjunta com atividades para o ensino fundamental

This work is a study and a repost on a possible way that can be worked together Mathematics and Native Language, presenting activities for the middle school, trying to make teaching more interesting, dynamic and playful. The work presents proposal for activities based on stories from the book “O Homem que calculava” by Malba Tahan, with questionnaires to be answered by the students and guidance for teachers on how to apply these activities in the classroom. Applications of these activities were carried out and this work also includes analysis and records of them

Arranjo fisico na montagem com fluxo continuo nas superficies de comando composto

Based on the fierce competitiveness of manufacturing companies and the planning problems arising from the lack of flexibility and forecasting demand, companies are increasingly looking to reflect on the most appropriate methods to manage its manufacture. Today it is possible to obtain higher gains and lower costs through very efficient tools, this paper uses action-research to model and implement the physical layout of a manufacturing cell, with strong theoretical basement returned to Lean Production System and acting systematically in flexibility in mounting. Through observation and joint action of the observer and staff can report problems that occurred during the phases of planning and implementation of improvements. With the improvement of the physical arrangement in the assembly was possible to obtain significant gains by reducing the production cycle, the manpower required, spending of non-compliance and increasing productivity, final product quality and health in the workplace