2 resultados para TRANSMITTER

em Repositório Científico da Universidade de Évora - Portugal


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Este Relatório corresponde à Unidade Curricular da Prática de Ensino Supervisionada (PES), do Curso de Mestrado em Ensino de Artes Visuais no 3º Ciclo do Ensino Básico e Secundário, desenvolvida no ano lectivo 2009/2010, e tem como objectivo principal a auto-reflexão sobre a prática de ensino efectivada, pois a dimensão reflexiva é um factor fundamental na formação de professores. É importante estar-se actualizado na reunião de um conjunto de conhecimentos e competências que permitam exercer correctamente a actividade profissional docente, mas não menos relevante é a capacidade de se saber reflectir e auto-avaliar, enquanto professor, transmissor de saberes para uma melhoraria do ensino dos jovens e também das metodologias e estratégias educativas requeridas. ABSTRACT: Report of Supervised Teaching Practice conducted by Cátia Marisa Barrenho Casquinha, No.2 in the Group of Évora, André de Resende Integrated Primary School and Gabriel Pereira High School, for the specialty master’s degree in Visual Arts Education in the 3rd Cycle Elementary and Secondary Education. This report corresponds to Supervised Teaching Practice (PES) curricular unit of the Master Course in Teaching Visual Arts at the 3 rd Cycle of Basic and Secondary Education, developed in 2009/2010, and has as main objective self-reflection on teaching practice considering the reflective dimension as a key factor in teacher education. It is important to be updated on a set of knowledge and competences to properly exercise teaching professional activity, but not least is the ability to reflect and learn self-assessment practices as a teacher, transmitter of knowledge, in order to improve youngster education and also the required methodologies and educational strategies.

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The spatial distribution of the magnetic field and the coupling between the coils in the Wireless Power Transfer (WPT) systems is an important aspect to consider in the system design and efficiency optimization. The presented study in this paper is based on tests performed on a physical model. The transmitting (primary) equipment, is an electrical three-phase system, capable to be connected in star or delta (both electrically and geometrically). The measured results allow to describe graphically the magnetic field distribution in three dimensions. The analytical formulas aim to help to understand and to quantify the physical phenomena but they cannot be considered a universal approach and the measurement results help to understand better the observable facts. In the WPT, the key issues that will influence the efficiency, are the alignment of the coils, the spatial orientation of the magnetic field, the detachment and the tilt between the windings, all they changing the magnetic coupling between the transmitter and the receiver of energy. This research is directed not only to the magnetic field distribution but finally, to optimize the energy transfer efficiency.