Results 261 to 270 of about 349,011 (299)
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Electric impedance of neuroglia in vitro
Experimental Neurology, 1965Abstract Impedance measurements were carried out on neuroglia cells from tissue culture and newborn animals as studied in vitro . Approximately 240 cells were estimated to be present in the material studied. Membrane resistivity could be measured only at a-c frequencies below 200 cycle/sec. Both electric shocks and KCl applied to the tissue produced
F D, WALKER, T, TAKENAKA
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Development of an electrical impedance tomograph
2011 8th International Conference on Electrical Engineering, Computing Science and Automatic Control, 2011This article describes the design of an electrical impedance tomograph (EIT), with the aim to provide a tool to detect morphological changes in tissues. This design consists of an array of 16 electrodes distributed on a ring way. The 4 points technique is used to record the amplitude of the electrical impedance.
Christopher Montellano +4 more
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Electrical Impedance imaging of the Thorax
Journal of Microwave Power, 1983In this paper, we propose to develop a new imaging technology, computerized impedance tomography (CIT) for imaging the thorax. Our study involves reconstructing images of thoracic transverse plane impedance distributions noninvasively and nondestructively and exploring the potential of CIT.
Y, Kim, J G, Webster, W J, Tompkins
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Source Consistency Electrical Impedance Tomography
SIAM Journal on Applied Mathematics, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tingting Zhang +5 more
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A phantom for electrical impedance tomography
Clinical Physics and Physiological Measurement, 1988A method has been developed for constructing phantoms for electrical impedance tomography (EIT). A mesh of resistors is soldered to pins in a matrix board and forms a physical realisation of a finite element numerical model. To simulate different body tissues, changes in the apparent electrical conductivity and permittivity can be introduced at a ...
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Electrical impedance for an electrolytic cell
Physical Review E, 2006We analyze in which experimental conditions the concept of electrical impedance is useful for an electrolytic cell. The analysis is performed by solving numerically the differential equations governing the phenomenon of the redistribution of the ions in the presence of an external electric field and comparing the results with the ones obtained by ...
F. C. M. FREIRE +2 more
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Definition of Impedance and Impedance of Electrical Circuits
2013To understand the impedance of electrochemical objects, it is necessary to understand the behavior of simple electrical circuits, first in steady state, then in transient conditions. Such circuits contain simple linear electrical elements: resistance, capacitance, and inductance. Then the concept of electrical impedance will be introduced.
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Electrical Impedance Spectroscopy of the Human Prostate
IEEE Transactions on Biomedical Engineering, 2007Tissue electrical impedance is a function of its architecture and has been used to differentiate normal and cancer tissues in a variety of organs including breast, cervix, skin, and bladder. This paper investigates the possibility of differentiating normal and malignant prostate tissue using bioimpedance spectra.
Ryan J. Halter +4 more
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An electrical impedance spirometer
Journal of Applied Physiology, 1959E S, GOLDENSOHN, L, ZABLOW
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