Results 21 to 30 of about 349,011 (299)

Tissue Recognition Based on Electrical Impedance Classified by Support Vector Machine in Spinal Operation Area

open access: yesOrthopaedic Surgery, 2022
Objective One of the major difficulties in spinal surgery is the injury of important tissues caused by tissue misclassification, which is the source of surgical complications. Accurate recognization of the tissues is the key to increase safety and effect
Bingrong Chen   +7 more
doaj   +1 more source

Acousto-electrical speckle pattern in Lorentz force electrical impedance tomography [PDF]

open access: yes, 2015
Ultrasound speckle is a granular texture pattern appearing in ultrasound imaging. It can be used to distinguish tissues and identify pathologies. Lorentz force electrical impedance tomography is an ultrasound-based medical imaging technique of the tissue
Catheline, Stefan   +7 more
core   +4 more sources

A low-cost, portable, two-dimensional bioimpedance distribution estimation system based on the AD5933 impedance converter

open access: yesHardwareX, 2022
This study proposes a low-cost, portable, eight-channel electrical impedance tomograph based on the AD5933 impedance converter. The patterns for current injection and voltage measurement are managed by an Arduino Mega 2560 board and four 74HC4067 Texas ...
Juan D. Muñoz   +2 more
doaj   +1 more source

On-Chip Detection of Beads with a New Electrical Impedance Sensor [PDF]

open access: yes, 2010
Electrical impedance measurements in microfluidic chips are used for single cell analysis. Parallel electrodes are more suited than planar ones since the electrical field distribution is more homogenous.
Berg, Albert van den   +3 more
core   +3 more sources

Electrical Impedance of Cardiac Muscle [PDF]

open access: yesCirculation Research, 1961
Impedances of cat cardiac muscle and frog sartorius muscle were compared at several frequencies before and after interspace ion depletion. Strips of parallel fibers were obtained from papillary muscles and ventricular trabeculae. The impedances were measured in the direction of fiber orientation.
N, SPERELAKIS, T, HOSHIKO
openaire   +2 more sources

Diagnostic Accuracy of Electrical Impedance Spectroscopy in Non-melanoma Skin Cancer

open access: yesActa Dermato-Venereologica, 2020
Electrical impedance spectroscopy is a non-invasive technique that can help clinicians in diagnosing malignant skin tumours. Depending on the cellular irregularity of the lesion, electrical impedance spectroscopy can reveal changes in the structure and ...
Esra Sarac   +6 more
doaj   +1 more source

The characteristics of electronic training collars for dogs [PDF]

open access: yes, 2013
A wide range of electronic dog training collars (e-collars) is available in the UK, yet there is no means by which purchasers can meaningfully compare their electrical characteristics at the point of sale.
Cooper, J. J.   +2 more
core   +1 more source

ELECTRIC IMPEDANCE OF ASTERIAS EGGS [PDF]

open access: yesJournal of General Physiology, 1936
The alternating current resistance and capacity of suspensions of unfertilized eggs of Asterias forbesi have been measured at frequencies from one thousand to sixteen million cycles per second. The plasma membrane of the egg has a static capacity of 1.10µf/cm.2 which is practically independent of frequency.
K S, Cole, R H, Cole
openaire   +2 more sources

A New Method for Non-Invasive Measurement of Skin in the Low Frequency Range [PDF]

open access: yesHealthcare Informatics Research, 2010
ObjectivesThe purpose of our study was to estimate skin structure and conductivity distribution in a cross section of local tissue using non-invasive measurement of impedance data.
Min Soo Kim   +5 more
doaj   +1 more source

Application Status and Prospect of Impedance Spectroscopy in Agricultural Product Quality Detection

open access: yesAgriculture, 2022
The nondestructive testing of agricultural products has always been a key technology for the modernization of agriculture and food. By applying a sinusoidal voltage (current) excitation signal of variable frequency, the relationship between the amplitude,
Junhui Cheng   +5 more
doaj   +1 more source

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