Análise multivariada de características reprodutivas e produtivas de vacas da raça Holandesa

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise dos ciclos operacionais para especificação de motores de indução trifásicos

This paper addresses the three-phase induction motor by a thermal analysis of its operation, under the gaze of the standards of the Brazilian Association of Technical Standards that deal with working arrangements (operating cycles) defined by appropriate tests and for each use of the motor basis of this study, emphasizing especially the fact of the first three cycles are the cycles with greater possibilities of use for scaling a three-phase induction motor for the main industrial processes, will also be made an analysis of the reasons why the three-phase induction motors have a loss of power at altitudes above 1000 m above sea level and some methods of how to define how a three phase induction motor can be used in one of the first three working arrangements

Freio eletrodinamométrico usando um inversor de frequência e um motor de indução trifásico

Considering that the Brazilian energy source is based on hydroelectric power plants, every moment that it does not rain enough, we are likely to suffer power outage. Making the rational use of energy not only is wise, but also important for financial issues. The industrial sector is of great importance to Brazilian economic context, because it is one that creates more wealth and jobs. It should be noted that it is one of the sectors that consume more electricity. One of the most used equipment in industry is the three phase induction motor, which ends up providing significant waste of energy. For that reasons, studying three phase induction motors is important. One of the ways to evaluate the parameter of the three phase induction motor is using a dynamometer mechanic or electric. This work aims at further studies (and development) of electrodynamometer brake, a type of electrical dynamometer, that is the only one with reversible use. This means, it is possible to measure both the torque and the power transmitted by the electric motors, by the direct method and the indirect. Besides it allows greater stability in the imposition of charges, due to its nature of being able to regenerate the energy imparted by the engines being tested

Desenvolvimento da oralidade em crianças de três a quatro anos: descrevendo jogos e brincadeiras que produzem novas formas de comportamento

The goal for this communication is the speech development in children three to four years, and how games and child's plays can help them in the process. For this, we have set three specific goals. They are: select games and activities that serve as a means of furthering the development of speech; elect three activities, making sure at what point is the extra step to the outbreak of the sign/symbol and identify at what time of play the child uses more talk and no change in psychological structure. These games have been applied to children from three to four years in order to identify and record their actions and speeches during activities. Acquiring the ability to speak, the kids will be able to communicate socially and develop new forms of behavior. From young children already expresses themselves through babbling and even crying, because do not have a conventional language yet. From the social relationship, the child tends to become familiar with the language, and gradually learn how to use it, expressing her feelings and desires. When the development of language and thought intersect, transform the course of action of the child who begins to have control of your action. Such its importance in society, the language became the basis of childhood education and is the duty of teachers and educators to appropriate the necessary encouragement to the child to develop or improve her language