Results 21 to 30 of about 6,126,335 (244)

High-power CMOS current driver with accurate transconductance for electrical impedance tomography [PDF]

open access: yes, 2014
Current drivers are fundamental circuits in bioimpedance measurements including electrical impedance tomography (EIT). In the case of EIT, the current driver is required to have a large output impedance to guarantee high current accuracy over a wide ...
Demosthenous, A   +7 more
core   +1 more source

Magnetic Induction Spectroscopy for Permeability Imaging

open access: yesScientific Reports, 2018
The structural health monitoring of ferromagnetic materials is essential for controlling product quality. This paper presents the first known characterisation, utilising magnetic induction spectroscopy, of the magnetic permeability of ferromagnetic ...
Lu Ma, Manuchehr Soleimani
doaj   +1 more source

3D-electrical resistivity tomography monitoring of salt transport in homogeneous and layered soil samples [PDF]

open access: yes, 2011
Monitoring transport of dissolved substances in soil deposits is particularly relevant where safety is concerned, as in the case of geo-environmental barriers.
Cosentini, Renato Maria   +13 more
core   +1 more source

Smart Water Meter Using Electrical Resistance Tomography

open access: yesSensors, 2019
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
Chenning Wu   +2 more
doaj   +1 more source

On the Image Reconstruction of Capacitively Coupled Electrical Resistance Tomography (CCERT) with Entropy Priors

open access: yesEntropy, 2023
Regularization with priors is an effective approach to solve the ill-posed inverse problem of electrical tomography. Entropy priors have been proven to be promising in radiation tomography but have received less attention in the literature of electrical ...
Zenglan Su   +4 more
doaj   +1 more source

Ventilation inhomogeneity in patients with cystic fibrosis measured by electrical impedance tomography [PDF]

open access: yes, 2012
Objective: The distribution of ventilation within the lung is inhomogeneous. We hypothesized that the degree of inhomogeneity in patients with cystic fibrosis (CF) differs from that in healthy subjects.
Zhao, Zhanqi   +3 more
core   +1 more source

Historical Buildings Dampness Analysis Using Electrical Tomography and Machine Learning Algorithms

open access: yesEnergies, 2021
The article deals with the problem of detecting moisture in the walls of historical buildings. As part of the presented research, the following four methods based on mathematical modeling and machine learning were compared: total variation, least-angle ...
Tomasz Rymarczyk   +6 more
doaj   +1 more source

Online Optical Tomography System Application Of Charge-Coupled Device (CCD) For Object Detection In Crystal Clear Water

open access: yesJISR on Computing, 2016
This research presents an application of Charge-Coupled Device (CCD) linear sensor and laser diode in an optical tomography system. These optoelectronic sensors are believed to detect solid objects rather than transparent objects.
Juliza Jamaludin   +5 more
doaj   +1 more source

Electrical Resistance Tomography for Visualization of Moving Objects Using a Spatiotemporal Total Variation Regularization Algorithm

open access: yesSensors, 2018
Electrical resistance tomography (ERT) has been considered as a data collection and image reconstruction method in many multi-phase flow application areas due to its advantages of high speed, low cost and being non-invasive.
Bo Chen   +2 more
doaj   +1 more source

Extended Joint Sparsity Reconstruction for Spatial and Temporal ERT Imaging

open access: yesSensors, 2018
Electrical resistance tomography (ERT) is an imaging technique to recover the conductivity distribution with boundary measurements via attached electrodes. There are a wide range of applications using ERT for image reconstruction or parameter calculation
Bo Chen   +2 more
doaj   +1 more source

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