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Mostrando ítems 51-60 de 146
Recuperação de propriedades acústicas da subsuperfície através da inversão sísmica por mínimos quadrados linear e não linearRecovery of acoustic properties of the subsurface through the least-squares inversion of seismic data
(Universidade Federal do Rio de JaneiroBrasilInstituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de EngenhariaPrograma de Pós-Graduação em Engenharia CivilUFRJ, 2021)
Intra-node and Inter-node load balancing and other scalable approaches for high-performance seismic processing
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA ELÉTRICA E DE COMPUTAÇÃO, 2019-10-14)
Seismic modeling, reverse time migration (RTM), and multi-scale waveform inversion
(MFWI) are three of the most important techniques in seismic surveying. Seismic modeling simulates the wave propagation, RTM generates an ...
Estratégias de inversão de multiparâmetros utilizando a equação completa da elastodinâmica
(Universidade Federal do Rio de JaneiroBrasilInstituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de EngenhariaPrograma de Pós-Graduação em Engenharia CivilUFRJ, 2019)
Source characteristics of peruvian deep focus seismic doublet of november 24, 2015
(Universidad Continental, 2021)
The Peruvian deep focus seismic doublet of November 24, 2015 is the largest event recorded on the Peru-Brazil border in the last 50 years, with hypocenter depth at 655 km (Mw 7.4) for the first event and 675 km (Mw 7.5) ...
Settling analysis of MOS regulated current mirrors applied to micropower D/A converters
(Kluwer Academic Publ, 2000-08-01)
This paper provides an insight to the trade-off between settling time and power consumption in regulated current mirrors as building parts in micropower current-switching D/A converters. The regulation-loop frequency ...
Perfilagem e desenvolvimento de um escalonador centralizado para o método de inversão da forma de onda completa
(Universidade Federal do Rio Grande do NorteBrasilUFRNEnegenharia de Computação, 2019-12-03)
One of the main stages of drilling an oil well is prospecting. For example, this stage is where
seismic data processing for the study of soil characteristics is performed. Among many
methods and algorithms used during ...
Modelador de propagação de onda acústica 2D por diferenças finitas no domínio do tempo em CUDA
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA E ENGENHARIA DE PETRÓLEO, 2018-02-28)
The full waveform inversion (FWI) is a quantitative seismic imaging method that can provide a high degree of reliance on subsurface structures. However, modeling wave propagation is computationally very exhaustive, thus ...
Settling analysis of MOS regulated current mirrors applied to micropower D/A converters
(Kluwer Academic Publ, 2000-08-01)
This paper provides an insight to the trade-off between settling time and power consumption in regulated current mirrors as building parts in micropower current-switching D/A converters. The regulation-loop frequency ...
Outer rise stress changes related to the subduction of the Juan Fernandez Ridge, central Chile
(2007)
Although outer rise seismicity is less common than interplate seismicity in subduction zones, a significant level of seismicity has occurred between the Nazca trench and Juan Fernandez Ridge, in central Chile, during the ...