Non Dipole Field
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. ARQUEOMAGNETISMO NO BRASIL: VARIAÇÕES DA INTENSIDADE DO CAMPO MAGNÉTICO TERRESTRE NOS ÚLTIMOS CINCO SÉCULOS / ARCHEOMAGNETISM IN BRAZIL: INTENSITY VARIATIONS OF THE EARTHS MAGNETIC FIELD FOR THE PAST FIVE CENTURIES
O campo magnético da Terra varia em diferentes escalas de tempo, de milissegundos a bilhões de anos. Os dados de observatórios magnéticos e satélites obtidos nos últimos 150 anos indicam que o momento do dipolo magnético terrestre está diminuindo continuamente. Essa queda está associada à presença de fontes não-dipolares do campo em uma extensa r
Publicado em: 2010
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2. Caracterização espectroscópica e por modelagem mecânico-quântica, de compostos com potencial aplicação em dispositivos ópticos não-lineares
In the present work, the compounds 1-(3,4,5-trimethoxiphenil)-2-(2- tienyl) -5-(4-nitrophenylazo) pirrol (compound 1) and 5-dicianovinyl-5- piperidine-5,2:5:2- tertiophene (compound 2), were characterized using a combination of spectroscopic measurements and quantum mechanical calculation, aiming to evaluate if they present the necessary requisites for appli
Publicado em: 2009
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3. Um Procedimento analítico para o cálculo das integrais bi-eletrônicas em métodos de mecânica quântica molecular
The present work develops an alternative methodology (q-Integral method) to evaluate the two-electron integrals which appear in ab initio molecular quantum mechanical calculations. The q-Integral method is based on the q-Exponential function, which comes from the Tsallis non-extensive statistics mechanics. The advantage of this procedure is that the CPU time
Publicado em: 2008
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4. Three-dimensional reconstruction of non-homogeneous dielectric objects by the coupled-dipole method
In this paper we present an inversion procedure for electromagnetic scattering, based on the coupled-dipole method (CDM) combined with an inversion algorithm making use of the singular value decomposition procedure associated with a regularization factor. This method permits to obtain images of non-homogeneous dielectric objects whose dimensions are comparab
Brazilian Journal of Physics. Publicado em: 2007-06
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5. VÃrtices NÃo-Abelianos com Acoplamento NÃo-MÃnimo em um Background Gravitacional
The main purpose of this thesis is to investigate how the non-Abelian gauge symmetry affects the solutions of the equations of motion in some field theory models. We concern ourselves specifically with three dimensional field theories. We will note here that planar systems give us the needed informations about the theories approached here. Topological defect
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/07/2005
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6. Aplicação das funções de quase-probabilidade no estudo da dinamica de emaranhamento
Entanglement dynamics of two ideal bipartites systems is analyzed using reduced linear entropy and quasiprobability distribution functions in the semiclassical regime.Two models are studied: the quartic bidimensional oscillator and the Dicke ?s Maser model. The first one describes the propagation of two monochromatic field modes in a Kerr medium, and the sec
Publicado em: 2003
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7. Aceleração e fluxos potenciais em relatividade geral : resultados analiticos e numericos
Analytical and numerical solutions for the integral curves of the velocity field (streamlines) of a steady-state flow of an ideal fluid with p = ( g -1) equation of state are presented. When g = 2, the streamlines associated with an accelerate black hole and a rigid sphere are studied in some detail, as well as, the velocity fields of a black hole and a rigi
Publicado em: 2002
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8. Responses of electroreceptors in the platypus bill to steady and alternating potentials.
1. This is a report of further observations on the response characteristics of electroreceptors in the bill of the platypus, Ornithorhynchus anatinus, first described by Gregory, Iggo, McIntyre & Proske (1987). 2. The main finding is that, with the bill immersed in water, applying a potential difference between large plate electrodes on either side of the bi