Wave Basin
Mostrando 13-21 de 21 artigos, teses e dissertações.
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13. Sedimentary facies and provenance of the Bebedouro Formation, Neoproterozoic (BA) / Fácies sedimentares e proveniência da Formação Bebedouro, Neoproterozóico (BA)
The sedimentary record of Neoproterozoic age has become a major subject of research since the rebirth of the models of extreme glaciation and rapid climatic changes for the period, including the Snowball Earth hypothesis. These models are founded on the identification, in all continents, of Neoproterozoic diamictites directly overlain by carbonates, which ar
Publicado em: 2008
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14. Sedimentação mista carbonato-siliciclástico durante o albo-aptiano na porção emersa da bacia Sergipe-Alagoas
The Albian-Aptian mixed sediments, composed of carbonate and siliciclastic constituents, occur in the onshore portion of the Sergipe-Alagoas Basin, next to its current border. Outcrops are located 50 km to northwest from Aracaju and, for the greater part, in oil well areas. The interpretations now presented are based on outcrop description, georadar sections
Publicado em: 2006
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15. Processamento e interpretação de dados 2D e 3D de GPR :aplicações no imageamento de feições kársticas e estruturas de dissolução no campo de petróleo de Fazenda Belém-CE
In Fazenda Belém oil field (Potiguar Basin, Ceará State, Brazil) occur frequently sinkholes and sudden terrain collapses associated to an unconsolidated sedimentary cap covering the Jandaíra karst. This research was carried out in order to understand the mechanisms of generation of these collapses. The main tool used was Ground Penetrating Radar (GPR). Th
Publicado em: 2006
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16. Validation of heat fluxes over the tropical atlantic: CPTEC coupled ocean-atmosphere model and observations / Validação dos fluxos de calor sobre o atlântico tropical: modelo acoplado oceano-atmosfera do CPTEC e observações
The goal of this work is to infer the importance of surface heat fluxes, estimated by several methods, in the determination of the Sea Surface Temperature (SST) fields in the tropical Atlantic using a set of general circulation ocean model Modular Ocean Model 3 (MOM 3) simulations and a Centro de Previsão de Tempo e Estudos Climáticos (CPTEC) coupled ocean
Publicado em: 2005
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17. An Investigation into Mechanisms of Loss of Safe Basins in a 2 D.O.F. Nonlinear Oscillator
In this work we consider the transient stability of coupled motions of a 2 D.O.F. nonlinear oscillator that can represent, for example, the motions of a sea vessel under the action of trains of regular lateral waves. Instability is studied as the escape of the system from a safe potential well. The set of initial conditions in phase space that lead to accept
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2002-05
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18. ESTUDIO DE LA DISPERSIÓN CROMÁICA Y EFECTOS NO LINEALES EN FIBRAS DE DISPERSIÓN DESPLAZADA / STUDY OF CHROMATIC DISPERSION AND NONLINEAR EFFECTS IN SHIFTED DISPERSION FIBER OPTIC SYSTEM / ESTUDO DA DISPERSÃO CROMÁTICA E EFEITOS NÃO LINEARES EM FIBRAS DE DISPERSÃO DESLOCADA
This work presents a study on the mathematical determination of the total chromatic dispersion, zero dispersion wavelength and nonlinear optical effects in dispersion shifted (DS) fiber optic system. A methodology to determine the chromatic dispersion and zero dispersion wavelength is proposed using the equivalent step index model and the similarity of the t
Publicado em: 2001
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19. A survey of the generation of ocean waves in a test basin
At present stage the analytical design of wave tolerance for floating structures and vessels is still imperfect due to the mutually complex and nonlinear phenomena between structures and waves. Wave tolerance design is usually carried out through iterative evaluations of results from model tests in a wave basin, and this is done in order to reach a final str
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2000
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20. Refração Sísmica Profunda no Setor Sudeste da Província Tocantins / Deep Seismic Refraction on Southestearn Sector of the Tocantins Province
This work to fulfil the degree of Master of Sciences is inserted among the deep seismic refraction studies of the Thematic Project Geophysical Studies and Tectonic Model of the Tocantins Province Central and Southeast Sectors, Central Brazil . Three refraction lines, of around 300 km long each, were deployed, two of them in the Central sector and the other i
Publicado em: 2000
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21. Interacoes entre sistemas frontais na America do Sul e a conveccao na Amazonia / x
GOES-EAST satellite imagery for a ten-year period (1975 to 1984) was analysed in order to establish a climatology of the interaction between frontal systems and tropical convections mainly over the Amazon basin. The climatology revealed that often when frontal systems are located along the Atlantic coast in latitudinal band 35° - 20°S, there was a band of
Publicado em: 1986