Geophysical Parameters
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Obtaining geotechnical parameters from correlations between geophysics and CPT tests in tailings dams
Abstract This article introduces a hassle-free methodology for geotechnical parameters to be obtained from correlations between geophysics and CPT field tests in tailings dams undergoing the decommissioning process, which are reasonably representative of site conditions, from the very early project stages, with extensive coverage of all impoundment parts, wi
REM, Int. Eng. J.. Publicado em: 2020-12
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2. SPATIALIZATION OF ELECTRICAL CONDUCTIVITY AND PHYSICAL HYDRAULIC PARAMETERS OF SOILS UNDER DIFFERENT USES IN AN ALLUVIAL VALLEY
RESUMO A caracterização da estrutura de variabilidade espacial de propriedades hidráulicas e da salinidade do solo é de grande importância para um adequado manejo agrícola de vales aluviais e para proteção da vegetação ciliar. Dessa forma, o objetivo deste trabalho foi a verificação da precisão de medições indiretas da condutividade elétrica
Rev. Caatinga. Publicado em: 09/05/2019
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3. Geophysical modeling in gold deposit through DC Resistivity and Induced Polarization methods
Abstract Ore mining fundamentally depends on the definition of its tenor and volume, something extremely complex in disseminated mineralization, as in the case of certain types of deposits of gold and sulfites. This article proposes the use of electrical tomography for definition of a geophysical signature in terms of electrical resistivity and chargeability
REM, Int. Eng. J.. Publicado em: 2016-09
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4. Análise da água e das condições ambientais da bacia hidrográfica do Ribeirão das Pedras, Quirinópolis/GO / Analysis of water and environmental conditions on Ribeirão das Pedras basin, Quirinópolis/GO
This research was based on the perspective to understand the influence of land use in the physical and chemical indicators of water quality of the watershed of Ribeirão das Pedras - Quirinópolis / GO, which is the main source of public water supply in this city. As this area is occupied by domesticated animals raised in an agricultural setting to produce c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/06/2011
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5. Análise da água e das condições ambientais da bacia hidrográfica do Ribeirão das Pedras, Quirinópolis/GO / Analysis of water and environmental conditions on Ribeirão das Pedras basin, Quirinópolis/GO
This research was based on the perspective to understand the influence of land use in the physical and chemical indicators of water quality of the watershed of Ribeirão das Pedras - Quirinópolis / GO, which is the main source of public water supply in this city. As this area is occupied by domesticated animals raised in an agricultural setting to produce c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/06/2011
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6. Methodology to estimate the in situ uniaxial compressive strength of coal seams based on geophysical data / Proposta para a estimativa da resistência à compressão uniaxial in situ de camadas de carvão com a utilização de geofísica
A arte de dimensionar pilares em minas subterrâneas de carvão tem sido objeto de pesquisa há mais de 100 anos no mundo inteiro. A maioria dos métodos de dimensionamento de pilares para a lavra segundo o método "câmara e pilares" se vale de parâmetros de resistência e geométricos das camadas de carvão. A resistência in situ da camada de carvão (S1
Publicado em: 2008
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7. Estudo das propriedades geotécnicas de solos residuais não saturados de Ubatuba (SP). / Study of the geotechnical properties of unsaturated residual soils of Ubatuba (SP).
This doctoral thesis focusing on the study of the geotechnical properties of unsaturated residual soils occurring in the municipal district of Ubatuba, north coast of the State of Sao Paulo. The study of geotechnical properties was conducted from a macro and micromorfology approach, seeking to establish the relationship between the water present in the resid
Publicado em: 2008
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8. Caracterização geométrica e parametrização de depósitos transacionais recentes e sua aplicação na modelagem de reservatórios petrolíferos
In this beginning of the XXI century, the Geology moves for new ways that demand a capacity to work with different information and new tools. It is within this context that the analog characterization has important in the prediction and understanding the lateral changes in the geometry and facies distribution. In the present work was developed a methodology
Publicado em: 2008
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9. Seimic resolution and time-to-depth conversion by the common-reflection-surface (CRS) method / Resolução sismica e conversão tempo-profundidade, atraves do metodo de superficie comum de reflexão (CRS)
The demand for large multiplicities in seismic processing has always been a tough target for the professionals involved in this area. Until recently, the major effort to meet this demand has been done during seismic acquisition, which, due to high cost, is not usually implemented. Recently, the Common Reflection Surface (CRS) technique filled this gap provid
Publicado em: 2008
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10. Morfologia e dinâmica das irregularidades ionosféricas de pequena escala e imageamento ionosférico por GPS / Morphology and dynamic of small-scale ionospheric irregularities and ionospheric imaging by GPS
The signals received from the Global Positioning System (GPS) satellites were used to study the behavior of three important geophysical parameters of the ionosphere: small-scale irregularities, their zonal drift velocities and the Total Electron Content (TEC). From the fluctuations (scintillations) in the amplitude of the GPS L1 signal (1575.42 MHz), detecte
Publicado em: 2008
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11. MODELAGEM E INVERSÃO 2D DE DADOS MAGNETOMÉTRICOS APLICADOS NA CARACTERIZAÇÃO DA GEOMETRIA DO SINCLINAL GANDARELA E HOMOCLINAL CURRAL QUADRILÁTERO FERRÍFERO, MG
The aim of the present study is the geometrical characterization of Gandarela syncline and Curral homocline, the major structures in the Quadrilátero Ferrífero, based on an integrated analysis of geophysical data. The Gandarela syncline is a reclined fold with NE-SW trending axial trace and hinge zone plunging to southeastern. The Curral homocline is repre
Publicado em: 2005
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12. LabSis : um ambiente para desenvovimento de aplicações sismicas Matlab
The Matlab package is a tool of widespread use in the academic environment, because of its advantages in simple direct programming, graphs and visualization tools. It allows initial implementations of algorithms and procedures very quickly in a series of applications. As a counterpar to the above good qualities, Matlab programs do not exhibit the computation
Publicado em: 2004