Results 171 to 180 of about 1,198 (214)
Some of the next articles are maybe not open access.
Coupling Simulation for electrical resistance tomography
2016 IEEE International Conference on Imaging Systems and Techniques (IST), 2016The performance of electrical resistance tomography (ERT) system is usually investigated by numerical simulation or static tests using some simple phantoms. The objective of this paper is to construct a coupling simulation model for ERT. In this model, the distribution information of multi-phase flow is exchanged between the fluid field and electric ...
Yang, Wuqiang; id_orcid 0000-0002-7201-1011 +4 more
openaire +2 more sources
Practical application of electrical impedance tomography and electrical resistive tomography
2016 Progress in Electromagnetic Research Symposium (PIERS), 2016Usage of electrical impedance tomography and electrical resistance tomography will be in the article. The electrical impedance tomography is a widely investigated problem with many applications in physical and biological sciences. Medical imaging can be used primarily for the detection of pulmonary emboli, non-invasive monitoring of heart function and ...
T. Kriz, Z. Roubal
openaire +1 more source
Image Appraisal Tools for Electrical Resistivity Tomography
Symposium on the Application of Geophysics to Engineering and Environmental Problems 2011, 2011Image appraisal is a problem frequently encountered in electrical resistivity Tomography (ERT), and more generally in non-linear geophysical Inversion. It may include several aspects such as the identification of the geometry of buried structures, the detection of numerical artefacts, the estimation of the depth of Investigation or the exactitude of ...
Caterina, David +3 more
openaire +1 more source
Electrical resistance tomography: complementarity and quadratic models
Inverse Problems, 2000Summary: Electrical resistance tomography, the nonlinear inverse problem of retrieving the resistivity of an unknown body from steady-state boundary measurements, is addressed by a quadratic model that approximates the operator mapping the unknown parameters into boundary data. The forward problem, i.e.
G. RUBINACCI +2 more
openaire +4 more sources
Uncertainties Analysis of Electrical Resistivity Tomography
2021<p>We examined the uncertainty of the resistivity method in cavity studies using a synthetic cavity model set at six-different depths. Conceptual models were simulated to generate synthetic resistivity data for dipole-dipole, pole-dipole, Wenner-Schlumberger, and pole-pole arrays.
Yonatan Garkebo Doyoro +2 more
openaire +1 more source
Experience With Anisotropic Inversion For Electrical Resistivity Tomography
15th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 2002An iterative, Occam’s-style, regularized inverse approach was used to invert a finite-difference based forward model. The new algorithm was tested on existing data from several sites. The use of the anisotropic inversion algorithm produced images that are less prone to artifacts.
Douglas J. LaBrecque, Dan Casale
openaire +1 more source
Research Progress of Electrical Resistance Tomography
2021With the development of the times, the non-destructive testing technology of concrete has been continuously explored by countless scientific researchers to meet the requirements of contemporary people for architecture. It is moving toward more accurate, low-cost, portable, non-radioactive, non-injectable, and the development of features such as ...
Yuhan Li +3 more
openaire +1 more source
Analysis of Sensitivity Matrix for Electrical Resistance Tomography
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2019Electrical Resistance Tomography (ERT) is a detection technique for reconstructing conductivity distribution from boundary measurements. However, the image reconstruction of ERT is an ill-posed and nonlinear inverse problem. There are many algorithms for solving inverse problems based on the sensitivity theory, the basic idea of which is to use the ...
Ziqi Liu, Yanbin Xu, Feng Dong 0001
openaire +1 more source
Electrical Resistivity Tomography of The Ore Heap
Engineering and Mining Geophysics 2021, 2021Summary The article shows the results of three-dimensional inversion of electrotomographic data obtained on the heap leach ore pile. The main purpose of the study has to identify filtration channels inside the heap, dry ore blocks and leaks through the waterproofing layer. The array of 3-D data was obtained from the 2-D dataset.
V. V. Olenchenko +3 more
openaire +1 more source
A kind of Electrical Resistance Tomography system
2011 International Conference on Electric Information and Control Engineering, 2011As a kind of on-line measurement technology possessing advantages of unperturbed, non-radiant and visualization, Electrical Resistance Tomography has wide application prospect in petroleum and chemical industrial production processes which are based continuous-phase conductive medium.
null Zhiqiang Zhang +3 more
openaire +1 more source