Plasma Bubbles
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Editorial
Publicado em: 2008
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2. Estudos de irregularidades do plasma da camada ionosférica e equatorial e de baixas latitudes do setor brasileiro
Nesta tese de doutorado são analisadas duas classes de irregularidades ionosféricas observadas opticamente nas regiões de baixas latitudes do setor brasileiro: Irregularidades de plasma de grande escala, ou Bolhas de plasma, e Distúrbios ionosféricos propagantes de média escala, (do inglês, MSTIDs Medium scale traveling ionospheric Disturbances). As b
Publicado em: 2008
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3. Chiral transition and the quark-gluon plasma
We discuss a few recent results for the equation of state of strongly interacting matter and the dynamics of chiral phase transition. First, we consider the cases of very high densities, where weak-coupling approaches may in principle give reasonable results, and very low densities, where we use the framework of heavy-baryon chiral perturbation theory. We al
Brazilian Journal of Physics. Publicado em: 2006-03
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4. Estudo de irregularidades ionosféricas em períodos de baixa ocorrência em baixas latitudes sob condições calmas / Studies of low-latitude ionospheric irregularities during the periods of their low frequency of occurrence, and under quiet conditions
This thesis research focalises a study of the mechanisms involved in the generation and evolution of the ionospheric plasma bubbles by means of experimental data and modeling. The experimental data were obtained by night airglow (OI630nm) imagers and Digisondes. The airglow allsky imager was located at São João do Cariri (7,5°S, 36,5°O, I=-20°), and the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/11/2005
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5. Ionospherica F-layer nocturnal zonal drift studies over Brazilian region / Estudos das derivas zonais da camada F da ionosfera noturna sobre a região brasileira
This study focused on the nocturnal zonal plasma drifts of the ionosphere (F layer) at equatorial and low latitude regions of the Brazil. The analysis is interpreted using the simple plasma drift model (coupled ionosphere-electric field model of Eccles, 1998) and monochromatic digital images of the OI630nm emission, which allow direct visualization of the io
Publicado em: 2005
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6. Studies of low-latitude ionospheric irregularities during the periods of their low frequency of occurrence, and under quiet conditions / Estudo de irregularidades ionosféricas em períodos de baixa ocorrência em baixas latitudes sob condições calmas
This thesis research focalises a study of the mechanisms involved in the generation and evolution of the ionospheric plasma bubbles by means of experimental data and modeling. The experimental data were obtained by night airglow (OI630nm) imagers and Digisondes. The airglow allsky imager was located at São João do Cariri (7,5°S, 36,5°O, I=-20°), and the
Publicado em: 2005
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7. Estudo da dinâmica do sistema termosfera - ionosfera por modelo teórico e observações experimentais / Study of the termosphere-ionosphere system dynamics by theoretical model and experimental observations
In this work it was developed a new version of the ionospheric model SUPIM (Sheffield University Plasmasphere Ionosphere Model), in which the ionospheric E region and equatorial zonal drift velocity calculations for F region were included. This new version, named as SUPIM-E (Sheffield University Plasmasphere Ionosphere Model Enhanced) provide applied studies
Publicado em: 2005
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8. Estudos das derivas zonais da camada F da ionosfera noturna sobre a região brasileira / Ionospherica F-layer nocturnal zonal drift studies over Brazilian region
Este estudo focalizou as velocidades noturnas de deriva zonal do plasma ionosférico (camada F) em regiões brasileiras de latitudes baixas e equatoriais. A análise é interpretada utilizando equações simples de deriva do plasma ionosférico propostas por Eccles (1998) e imagens digitais da emissão OI630nm que permitem visualizar diretamente as bolhas io
Publicado em: 2005
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9. Estudos da deriva zonal e dinâmica das bolhas de plasma na região tropical / Zonal drifts and dynamical study of the plasma bubbles over the tropical region
All-sky airglow OI 630 nm images obtained at Cachoeira Paulista in the period from January 1989 to December 1991 and January 1995 to December 1997 are analysed to study the nocturnal and seasonal dynamic behavior, as well as bifurcation variations of plasma bubbles during high and low solar activity. Also, all-sky images from São João do Cariri and Cachoei
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/02/2002
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10. Estudos da deriva zonal e dinâmica das bolhas de plasma na região tropical / Zonal drifts and dynamical study of the plasma bubbles over the tropical region
All-sky airglow OI 630 nm images obtained at Cachoeira Paulista in the period from January 1989 to December 1991 and January 1995 to December 1997 are analysed to study the nocturnal and seasonal dynamic behavior, as well as bifurcation variations of plasma bubbles during high and low solar activity. Also, all-sky images from São João do Cariri and Cachoei
Publicado em: 2002
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11. Estudos da deriva zonal e dinâmica das bolhas de plasma na região tropical / Zonal drifts and dynamical study of the plasma bubbles over the tropical region
Neste trabalho são analisados seis anos de dados da emissão de oxigênio atômico (linha OI 630 nm)obtidos com um imageador ""all-sky"", instalado em Cachoeira Paulista, durante os períodos de janeiro de 1989 a dezembro de 1991 e janeiro de 1995 a dezembro 1997, com a finalidade de estudar o comportamento dinâmico noturno e sazonal, e a ocorrência de bi
Publicado em: 2002
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12. Estudo das derivas zonais das irregularidades de plasma ionosférico na região brasileira / Study of ionospheric zonal plasma irregularity drifts over brazilian region
A detailed study of the zonal drift velocities of the ionospheric bubbles is carried out using experimental airglow data registered at Cachoeira Paulista (22.50 S, 450 W, dip 300 S)during the period of October to March, between 1980-1994. This study is based upon 172 nights of zonal scanning photometer measurements of OI 630 nm airglow. The zonal velocity ma
Publicado em: 2000