Sistema de automação residencial controlado via rede doméstica

The present work develops a residential automation system controlled by PIC microcontroller connected to a domestic network using the TCP/IP protocol. This was motivated by the viability of building an automation system to control basic elements of a house with low cost, which cannot be found nowadays. Initially is presented a brief history of the automation systems and an introduction about PIC microcontrollers. Afterwards is presented an overview of the system to be implemented. Then it is shown a suggested circuit and the sensor and actuator elements as well as the software to manage the system, this was all build and test in the laboratory. In the end are the results obtained from the prototype, like the energy consumption, the cost, efficiency and reliability

A vigilância sem farda: a espionagem interna na ditadura civil militar através do DEOPS

Pós-graduação em História - FCHS

Avaliação de compostos modelos visando propor um método de diferenciação de matéria orgânica lábil e recalcitrante em ambientes aquáticos

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

Effects of surface application of calcium-magnesium silicate and gypsum on soil fertility and sugarcane yield

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Projeto e usinagem do cabeçote para um motor 4 tempos, a gasolina, monocilíndrico de 400 cc e refrigerado a ar

Pós-graduação em Engenharia Mecânica - FEG

Projeto de controladores robustos para acionamento de um motor de indução trifásico

Pós-graduação em Engenharia Elétrica - FEIS

Desempenho de gotejadores usando efluente de esgoto tratado para irrigação

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

Propriedades luminescentes de polioxometalato contendo európio(III) correlacionadas à sua conformação em sólido estendido e em filmes auto-organizados de Langmuir e Langmuir-Blodgett

Pós-graduação em Química - IQ

Efeito das diferentes direções de aplicação de jato de fluido de corte no torneamento de um aço de difícil usinagem

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Sistema fotovoltaico monocristalino para bombeamento de água

Since ancient times, it has been a huge challenge to all people around the world to manage to get their fresh water, keeping it clean and providing it to every human being, so that it can be used for their daily needs. This is especially true for small properties in the countryside and in isolated areas with low demographic density. Pumping the water in those regions is a solution that rationalizes its use in domestic chores, in animal rearing and in the irrigation systems of cultivated areas. Making feasible local, renewable and non-polluted energetic alternatives is the aim for those areas that are usually far away from the public electric network. Using photovoltaic solar energy is the alternative now proposed. For this objective was built a system with two monocrystalline panels, one pump, two water tanks, two level sensors and a solenoid valve to pump water, using a pump powered an array of monocrystalline solar panels. The main goal was to compare their rate of water flow and their energy consumption. The use of one data acquisition equipment allowed collecting meteorological, electrical and hydraulic values, and also serving for the control and activation of the pumping system. During four months in a row as from April 2009, arrangements with one or two panels were tested. Mathematics correlations and adjustment lines were used to interpret the behavior of obtained dataset. During the analyzed period the system followed the linear equations with great accuracy. The daily average amount of water pumped by the several tested arrays stayed between 1,100 and 2,500 liters, and that is enough to supply a small rural property. The pumping system with two panels effectively showed the major amount of water, but a system with one panel can be an economical solution until 1,500 liters on day. It did not characterize a direct relationship between power or quantity of photovoltaic panels and daily outflow of water pumping.

Estudo da combustão do óleo pirolítico de pneus

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Pesquisa, projeto e construção de um sistema de ignição sem distribuidor

This work intends to know the most types of ignition systems, studying its history, the way it works, applications and some examples. The assembly of a distributor less ignition system is also required. All vehicles powered by internal combustion engines need an ignition system that allows this engine to ignite the air-fuel mixture using its ignition system in the best possible manner. The main goal of an ignition system is to obtain a spark having enough energy to start the chemical reaction of the oxygen and the fuel. It took a study dealing with the various types of ignition systems since their creation at the beginning of the last century until 2015. The work starts studying the high tension magneto ignition system and later together with the low tension ignition system, going on with the conventional ignition system and finally accomplishing with the various types of electronic ignition systems. It was studied and implemented an electronic circuit to power a double spark ignition system also known as wasted spark ignition system. This circuit was assembled with an electric pulse generator and powered mechanically by a dc electric motor of the variable rpm type

Pesquisa, projeto e construção de um sistema de ignição sem distribuidor

This work intends to know the most types of ignition systems, studying its history, the way it works, applications and some examples. The assembly of a distributor less ignition system is also required. All vehicles powered by internal combustion engines need an ignition system that allows this engine to ignite the air-fuel mixture using its ignition system in the best possible manner. The main goal of an ignition system is to obtain a spark having enough energy to start the chemical reaction of the oxygen and the fuel. It took a study dealing with the various types of ignition systems since their creation at the beginning of the last century until 2015. The work starts studying the high tension magneto ignition system and later together with the low tension ignition system, going on with the conventional ignition system and finally accomplishing with the various types of electronic ignition systems. It was studied and implemented an electronic circuit to power a double spark ignition system also known as wasted spark ignition system. This circuit was assembled with an electric pulse generator and powered mechanically by a dc electric motor of the variable rpm type

Estudio y desarrollo de una solución web para un diccionario de lengua de signos basado en un modelo colaborativo wiki

[ES]WikiSigns es un diccionario online de lenguas de signos multilingue y gratuito, cuyo contenido es creado y editado de forma colaborativa por sus usuarios. Está montado sobre una plataforma de software libre y alojado en servidores de coste mínimo. Los vídeos son almacenados en sistemas de almacenaje y distribución gratuitos de terceros. WikiSigns utiliza un sistema basado en la opinión de los usuarios para vincular términos con vídeosignos, de forma que los más valorados sean los más visibles. El contenido textual de WikiSigns así como los vídeos de los signos están liberados bajo licencias GNU y Creative Commons. Todo el contenido de WikiSigns puede ser utilizado libremente siempre que se cite la fuente original. Si bien WikiSigns puede utilizarse para aprender una lengua de signos, sus principales objetivos son : 1. Disponer de una herramienta que permita el registro de lenguas de signos minimizando sus costes. 2. Proveer a las personas sordas de un diccionario online rápido, sencillo y gratuito que les permita visualizar un signo en su lengua sinónimo de una palabra escrita en cualquier idioma. 3. Proveer a las personas sordas de una herramienta para compartir nuevos signos.

La Educación Física y el conocimiento, una relación problemática

Rastreando el devenir de la disciplina, puede visualizarse, junto a laintencionalidad de implementar unas prácticas, la voluntad y la necesidad de recortar un objeto de conocimiento. Este doble proceso no estuvo al margen de las preocupaciones políticas, científicas, culturales y morales que lo enmarcaron. El cuerpo ha sido, en un principio, el objeto justificador, desde las miradas científicas y políticas, asumiendo la doble dimensión de objeto de conocimiento y efecto de poder. A lo largo del siglo XX ha habido cambios en las prácticas, variaciones en los discursos y al final el cuerpo retorna montado sobre nuevas palabras, pero con efectos inciertos. A la vez, para visualizar los sujetos que participan en las propuestas prácticas de la EF es necesario considerar el conocimiento producido en esas prácticas, como modo de considerar al sujeto mismo y su protagonismo ciudadano.Para el campo no es asunto menor, implica una consideración transformadora dela EF. La actividad epistemológica requiere considerar las dos dimensiones que se desprenden del triángulo "sujeto, conocimiento, poder":la preocupación por el objeto de la disciplina y sus "dos sujetos":el colectivo profesional y académico y los alumnos,en tantoprotagonistas de la democracia y la justicia