Secondary Stars
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Editorial
Publicado em: 2009
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2. Atividade nas Estrelas Secundárias de Variáveis Cataclísmicas
- Activity in the secondary star is an important ingredient for the removal of orbital angular momentum in cataclysmic variables. The magnetic-breaking of the secondary due to a stellar wind interacting with the interstellar medium, together with the emission of gravitational waves, define the evolutive fate of such binaries. However, the direct observation
Publicado em: 2009
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3. Estudo paramétrico da injeção de vapor em reservatórios delgados
Exploration of heavy oil reservoirs is increasing every year in worldwide, because the discovery of light oil reservoirs is becoming increasingly rare. This fact has stimulated the research with the purpose of becoming viable, technically and economically, the exploration of such oil reserves. In Brazil, in special in the Northeast region, there is a large a
Publicado em: 2009
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4. Análise multi-espectral dos eventos cíclicos de Carinae / Multi-spectral analysis of the cyclic events of Eta Carinae
In this thesis, a multi-wavelength study on the cyclic events of Eta Carinae was performed. The presence of a hole in the polar region of the Homunculus was confirmed by the velocity maps of the [Fe II] 12567 line. The blue-shifted component of the He I 10830, detected towards the NW lobe, was mapped and it is in the equatorial plane. It was observed that wi
Publicado em: 2009
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5. O ensino de matematica : evolução e modernização
Whit the purpose of analyzing the origins and the principal characteristics of the International Movement for the Modernization of Mathematical Teaching in secondary schools, which occurred at the beginning of this century, as well as the influences exerted by this movement in different countries, in particular ? Brazil, this work presents an historical stud
Publicado em: 1995
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6. Macular changes resulting from papilloedema.
Six cases are presented with macular changes in association with papilloedema; 4 suffered permanent visual loss. The present paper emphasises this previously infrequent finding and discusses the haemodynamic and mechanical factors responsible. The macular changes consisted of haemorrhages situated in front, within, or behind the retina, and occasionally the