Results 1 to 10 of about 22,531 (109)
Electrical resistivity tomography methods for archaeological prospection [PDF]
Two advanced applications of electrical resistivity methods in archaeological prospecting are presented. The approach is based on new inversion techniques, which enable the modelling of the resistivity distribution below any arbitrary topography.
Günther, Thomas +2 more
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ELECTRICAL RESISTANCE TOMOGRAPHY [PDF]
Electrical resistance tomography (ERT) is a method that calculates the subsurface distribution of electrical resistivity from a large number of resistance measurements made from electrodes. For in-situ applications, ERT uses electrodes on the ground surface or in boreholes. It is a relatively new imaging tool in geophysics.
Abelardo L Ramirez +2 more
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Iterative geostatistical electrical resistivity tomography inversion
AbstractElectrical resistivity tomography (ERT) is a geophysical method used to create an image of the subsurface due to its sensitivity to porosity, water saturation, and pore fluid salinity. This geophysical method has been widely applied in the investigation of mineral and groundwater resources, as well as in archaeological, environmental, and ...
João Lino Pereira +4 more
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Transdimensional Electrical Resistivity Tomography [PDF]
AbstractThis paper shows that imaging the interior of solid bodies with fully nonlinear physics can be highly beneficial compared to imaging with the equivalent linearized tomographic methods and that this is true for a variety of different types of physics. Including full nonlinearity provides interpretable uncertainties and far greater depth of image
E. Galetti, A. Curtis
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Smart Water Meter Using Electrical Resistance Tomography [PDF]
Smart flow monitoring is critical for sewer system management. Obstructions and restrictions to flow in discharge pipes are common and costly. We propose the use of electrical resistance tomography modality for the task of smart wastewater metering. This paper presents the electronics hardware design and bespoke signal processing to create an embedded ...
Chenning Wu +2 more
openaire +4 more sources
Array optimisation for multichannel electrical resistivity tomography instruments [PDF]
In recent years there has been considerable research into the selection of near-optimal arrays of electrode configurations that enhance the resolution of electrical resistivity tomography (ERT) images.
J.E. Chambers +4 more
core +2 more sources
Cone-based electrical resistivity tomography [PDF]
Determining the 3D spatial distribution of subsurface properties is a challenging, but critical, part of managing the cleanup of contaminated sites. We have developed a minimally invasive technology that can provide information about the 3D distribution of electrical conductivity.
Adam Pidlisecky +2 more
openaire +1 more source
Application of Electrical Resistance Tomography [PDF]
Electrical tomography technology is a kind of process tomography technology. It is accompanied by the development of computer technology and sensor technology. Electrical resistance tomography is a kind of mode of electrical tomography. It has some excellent characteristics that are non-invasive, portable, l ow cost and fast response etc. In this paper,
Kaige Tian +4 more
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Heat as a proxy to image dynamic processes with 4D electrical resistivity tomography [PDF]
Since salt cannot always be used as a geophysical tracer (because it may pollute the aquifer with the mass that is necessary to induce a geophysical contrast), and since in many contaminated aquifer salts (e.g., chloride) already constitute the main ...
Bolly, Pierre-Yves +4 more
core +1 more source
Tomographic inversion of time-domain resistivity and chargeability data for the investigation of landfills using a priori information [PDF]
In this paper, we present a new code for the modelling and inversion of resistivity and chargeability data using a priori information to improve the accuracy of the reconstructed model for landfill.
CARDARELLI, Ettore, DE DONNO, GIORGIO
core +1 more source

