Results 41 to 50 of about 22,531 (109)

Electrical impedance spectroscopy-based nondestructive testing for imaging defects in concrete structures

open access: yes, 2014
An electrical impedance spectroscopy-based nondestructive testing (NDT) method is proposed to image both cracks and reinforcing bars in concrete structures.
Ammari, Habib   +3 more
core   +2 more sources

Electrical resistivity tomography for aquifer imaging

open access: yesJournal of Nepal Geological Society, 2000
Aspects related to the development of a technique called electrical resistance tomography for producing two- or three­ dimensional subsurface images of an aquifer have been discussed. The technique is based on the automated measurement and computerised analysis of electrical resistivity changes caused by natural or man-made processes.
openaire   +2 more sources

Energy-filtered transmission electron microscopy of biological samples on highly transparent carbon nanomembranes

open access: yes, 2011
Ultrathin carbon nanomembranes (CNM) comprising crosslinked biphenyl precursors have been tested as support films for energy-filtered transmission electron microscopy (EFTEM) of biological specimens.
Beyer, André   +7 more
core   +1 more source

Geophysical-geotechnical sensor networks for landslide monitoring [PDF]

open access: yes, 2011
Landslides are often the result of complex, multi-phase processes where gradual deterioration of shear strength within the sub-surface precedes the appearance of surface features and slope failure.
Chambers, Jonathan   +11 more
core  

Reference data for Electrical Resistance Tomography

open access: yes, 2023
At the conference we will present a first draft of a machine-readable refer- ence dataset structure for ERT measurements on thin film materials, based on XLM language. Reference data will include ERT measurements, along with a set of meta- data, such as information about the samples (geometry, materials), the measurement protocol used to perform the ...
alessandro cultrera   +2 more
openaire   +1 more source

Uniqueness for the electrostatic inverse boundary value problem with piecewise constant anisotropic conductivities

open access: yes, 2016
We discuss the inverse problem of determining the, possibly anisotropic, conductivity of a body $\Omega\subset\mathbb{R}^{n}$ when the so-called Neumann-to-Dirichlet map is locally given on a non empty curved portion $\Sigma$ of the boundary $\partial ...
Alessandrini, Giovanni   +2 more
core   +1 more source

Evaluation of electrical resistance tomography with voltage excitation compared with electrical capacitance tomography

open access: yesMeasurement Science and Technology, 2018
Normally, a gas–solids flow should be non-conductive. With the increase in moisture content in a gas–solids flow, the non-conductive flow may become low-conductive. For the measurement of low-conductive materials, i.e. particles with high moisture content, in the pharmaceutical industry, both electrical capacitance tomography (ECT) and traditional ...
Ruican Wang   +4 more
openaire   +2 more sources

Assessing the Viability of Complex Electrical Impedance Tomography (EIT) with a Spatially Distributed Sensor Array for Imaging of River Bed Morphology: a Proof of Concept (Study) [PDF]

open access: yes
This report was produced as part of a NERC funded ‘Connect A’ project to establish a new collaborative partnership between the University of Worcester (UW) and Q-par Angus Ltd.
Hill, Graham   +4 more
core  

Effectiveness of 3D Geoelectrical Resistivity Imaging using Parallel 2D Profiles [PDF]

open access: yes, 2011
Acquisition geometry for 3D geoelectrical resistivity imaging in which apparent resistivity data of a set of parallel 2D profiles are collated to 3D dataset was evaluated.
Aizebeokhai, A. P.   +2 more
core  

A study of stability analysis of pyroclastic covers based on electrical resistivity measurements

open access: yes, 2012
Usually, the degree of stability of a slope is quantified by the Factor of Safety whose values depend on physical and mechanical soil properties analyzed on samples of much reduced sizes or referring to very small soil volumes around porous probes.
Di Maio, Rosa, Piegari, Ester
core   +1 more source

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