Results 71 to 80 of about 44,515 (283)

Electrical impedance tomography in acute respiratory distress syndrome

Critical Care, 2018
Acute respiratory distress syndrome (ARDS) is a clinical entity that acutely affects the lung parenchyma, and is characterized by diffuse alveolar damage and increased pulmonary vascular permeability.
M Consuelo Bachmann, Caio Morais, Guillermo Bugedo, Alejandro Bruhn, Arturo Morales, João B Borges, Eduardo Costa, Jaime Retamal   +7 more
doaj   +1 more source

Multiscale electrical impedance tomography [PDF]

Journal of Geophysical Research: Solid Earth, 2003
Electrical impedance tomography aims to recover the electrical conductivity underground from surface and/or borehole apparent resistivity measurements. This is a highly nonlinear inverse problem, and linearized inverse methods are likely to produce solutions corresponding to local minima of the misfit function to minimize.
Pessel, Marc, Gibert, Dominique
openaire   +2 more sources

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

Advanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente, J. Nunes‐Pereira, A. P. Silva, P. N. B. Reis   +3 more
wiley   +1 more source

Past, present, and future of electrical impedance tomography and myography for medical applications: a scoping review

Frontiers in Bioengineering and Biotechnology
This scoping review summarizes two emerging electrical impedance technologies: electrical impedance myography (EIM) and electrical impedance tomography (EIT).
Lea Youssef Baby, Ryan Sam Bedran, Antonio Doumit, Rima H. El Hassan, Rima H. El Hassan, Noel Maalouf   +5 more
doaj   +1 more source

3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs

Advanced Engineering Materials, EarlyView.
This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu, Nelson Pereira, Javier Vicente, Carmen Rial Tubio, Senentxu Lanceros‐Méndez   +4 more
wiley   +1 more source

Adaptive Reconstruction for Electrical Impedance Tomography with a Piecewise Constant Conductivity

, 2019
In this work we propose and analyze a numerical method for electrical impedance tomography of recovering a piecewise constant conductivity from boundary voltage measurements.
Jin, Bangti, Xu, Yifeng
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Electrical impedance tomography methods for miniaturised 3D systems

Journal of Electrical Bioimpedance, 2016
In this study, we explore the potential of electrical impedance tomography (EIT) for miniaturised 3D samples to provide a non-invasive approach for future applications in tissue engineering and 3D cell culturing.
Canali C., Aristovich K., Ceccarelli L., Larsen L.B, Martinsen Ø. G., Wolff A., Dufva M., Emnéus J., Heiskanen A.   +8 more
doaj   +1 more source

TOPOLOGICAL DERIVATIVE METHOD FOR ELECTRICAL IMPEDANCE TOMOGRAPHY PROBLEMS

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2016
In the field of shape and topology optimization the new concept is the topological derivative of a given shape functional. The asymptotic analysis is applied in order to determine the topological derivative of shape functionals for elliptic problems. The
Andrey Ferreira, Antonio Novotny, Jan Sokołowski   +2 more
doaj   +1 more source

Self-Abrading Servo Electrode Helmet for Electrical Impedance Tomography

Sensors, 2020
Electrical Impedance Tomography (EIT) is a medical imaging technique which has the potential to reduce time to treatment in acute stroke by rapidly differentiating between ischaemic and haemorrhagic stroke.
James Avery, Brett Packham, Hwan Koo, Ben Hanson, David Holder   +4 more
doaj   +1 more source