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*  Bioelectrical impedance analysis
BIA actually determines the electrical impedance, or opposition to the flow of an electric current through body tissues which ... Body fat percentage Electrical impedance tomography Kyle, Ursula G.; Bosaeus, Ingvar; De Lorenzo, Antonio D.; Deurenberg, Paul ... Abu Khaled M, McCutcheon MJ, Reddy S, Pearman PL, Hunter GR, Weinsier RL (May 1988). "Electrical impedance in assessing human ... Thomasset conducted the original studies using electrical impedance measurements as an index of total body water (TBW), using ...
*  Impedance cardiography
... (ICG), also referred to as electrical impedance plethysmography (EIP) or Thoracic Electrical ... The electrical and impedance signals are processed to determine fiducial points, which are then utilized to measure and ... Impedance cardiography (ICG) is a noninvasive technology measuring total electrical conductivity of the thorax and its changes ... the placement of four dual disposable sensors on the neck and chest are used to transmit and detect electrical and impedance ...
*  Quantium Medical Cardiac Output
The impedance plethysmography allows determining changes in volume of the body tissues based on the measurement of the electric ... The Impedance Cardiography (ICG or Ztot) signal represents the changes of the thoracic impedance due to variations in the blood ... Jun.. Woltjer, H.H.; Bogaard, H.J.; de Vries, J.M. (1997). "The technique of impedance cardiography". Eur. Heart J. 18: 1396- ... quantium Medical Cardiac Output (qCO) uses impedance cardiography in a simple, continuous, and non-invasive way to estimate the ...
*  Impedance phlebography
... or impedance plethysmography (IPG), is a non-invasive medical test that measures small changes in electrical resistance of the ... For the chest, the technique was developed by NASA to measure the split second impedance changes within the chest, as the heart ... This technique has progressed clinically (often now called BioZ, i.e. biologic impedance, as promoted by the leading ...
*  Electrical impedance
... loudspeakers High impedance Immittance Impedance bridging Impedance cardiography Impedance control Impedance matching Impedance ... Bioelectrical impedance analysis Characteristic impedance Electrical characteristics of dynamic ... to rapidly measure the electrical impedance of various electrical devices. The LCR meter (Inductance (L), Capacitance (C), and ... a calibrated reference impedance is adjusted to balance off the effect of the impedance of the device under test. Impedance ...
*  Electrical impedance myography
... , or EIM, is a non-invasive technique for the assessment of muscle health that is based on the ... Interest in electrical impedance dates back to the turn of the 20th century, when physiologist Louis Lapicque postulated an ... Electrical impedance of muscle tissue is anisotropic; current flowing parallel to muscle fibers flows differently from current ... Standard bioelectrical impedance analysis (BIA), like EIM, also employs a weak, high frequency electric current to measure ...
*  Electrical impedance tomography
... (EIT) is a noninvasive type of medical imaging in which the electrical conductivity, ... This means, that a part of the electric current leaves the transverse plane and results in an impedance transfer. This and ... An early commercial development of non-tomographic electrical impedance imaging was the T-Scan device which was reported to ... Together, Brown and Barber published the first Electrical Impedance Tomogram in 1983, visualizing the cross section of a human ...
*  Electrical Impedance and Diffuse Optical Tomography Reconstruction Software
A Matlab toolkit for three-dimensional electrical impedance tomography: a contribution to the Electrical Impedance and Diffuse ... Aristovich et al Imaging fast electrical activity in the brain with electrical impedance tomography NeuroImage 2016 124 204 Hun ... W R B Lionheart, S R Arridge, M Schweiger, M Vauhkonen and J P Kaipio, Electrical Impedance and Diffuse Optical Tomography ... Electrical Impedance Tomography, (EIT 2015), Neuchâtel, Switzerland, Jun 2−5, 2015 A. Biguri; B. Grychtol; A. Adler; M. ...
*  Electric cell-substrate impedance sensing
... or ECISTM (a trademark of Applied BioPhysics Inc.) refers to a non-invasive ... leading to a corresponding increase or decrease of impedance. Thus, by recording time-resolved impedance measurements, cell ... In confluent cell layers the measured impedance is mainly determined by the three-dimensional shape of the cells. If cell shape ... Due to the insulating properties of their membranes the cells behave like dielectric particles so that the impedance increases ...
*  Glossary of jazz and popular music
DI or DI Box An electronic device which alters the impedance of electric instrument signals (e.g. electric guitar, electric ... With electric guitars, electric basses, Hammond organs, electric piano, and other electric instruments, performers often ... The DI box converts a high-impedance, unbalanced signal from an electric guitar into a low-impedance, balanced signal. Many DI ... ohm A unit of electrical impedance; speakers, microphones, headphones, and other gear is rated with its nominal impedance. (See ...
*  Amplitude domain reflectometry
The impedance can be measured from difference in amplitude. The impedance has two components: electrical conductivity and ... This method measures the electrical impedance. Electromagnetic waves traveling along Transmission Line (TL) enter in soil ... medium whose impedance is different from TL a part of the energy is reflected back to transmitter. The reflected wave ...
*  John G. Webster
Electrical impedance tomography, Adam Hilger, Bristol, England, 1990. Webster, J. G. (ed.), Teaching design in electrical ... He first proposed the idea of electrical impedance tomography as a medical imaging technique in a publication in 1978. In his ... of Electrical Eng., Univ. of Wisconsin-Madison 1976-80 Director of Biomedical Eng. Ctr., Univ. of Wisconsin-Madison 1973-1999 ... John O.G. Webster is an American electrical engineer and a founding pioneer in the field of biomedical engineering. In 2008, ...
*  Zurich Instruments
In a more recent collaboration, the electrical impedance spectroscopy platform (EISP) was launched together with French ... "Market Leaders Join Forces in Electrical Impedance Spectroscopy". UHFLI 600 MHz Lock-in Amplifier from Zurich Instruments HF2LI ... Fluigent and Dutch Micronit for the commercialization of ready-to-use electrical impedance analysis system. Lock-in Amplifier ... 5 MHz Lock-in Amplifier from Zurich Instruments MFIA 5 MHz Impedance Analyzer from Zurich Instruments UHFAWG Arbitrary Waveform ...
*  Action potential
Cole KS (1939). "Electrical impedance of the squid giant axon during activity". J. Gen. Physiol. 22 (5): 649-670. doi:10.1085/ ... The interaction of electrical and osmotic relations in plant cells indicates an osmotic function of electrical excitability in ... Electric Biology, the study of the electrical processes in the organism represented on a modern basis]. Braunschweig: Vieweg ... The electrical properties of a cell are determined by the structure of the membrane that surrounds it. A cell membrane consists ...
*  Poincaré-Steklov operator
This is the mathematical formulation of electrical impedance tomography. The solution of partial differential equation in an ... tangential electric field on the boundary of a region to the equivalent electric current on its boundary. Fluid-structure ...
*  Skulpt
Evaluation of Electrical Impedance as a Biomarker of Myostatin Inhibition in Wild Type and Muscular Dystrophy Mice. PLoS One. ... Electrical impedance myography in the assessment of disuse atrophy. Arch Phys Med Rehabil. 2009 Oct;90(10):1806-10". Missing or ... These devices rely on the use of electrical impedance myography (EIM) to measure muscle quality. EIM has been used to evaluate ... Age- and gender-associated differences in electrical impedance values of skeletal muscle. Physiol Meas. 2013 Dec;34(12):1611-22 ...
*  Phase angle
This notation is frequently used to represent an electrical impedance. In this case, the phase angle is the phase difference ... In bioelectrical impedance analysis in humans, an estimate of the phase angle can be obtained and is based on changes in ... 2005). "Bioelectrical impedance analysis: population reference values for phase angle by age and sex". American Journal of ... between the voltage applied to the impedance and the current driven through it. In the context of periodic phenomena, such as a ...
*  Dummy load
Electrical termination Electrical impedance Grid resistor Kleinschmidt, Kirk, ed. (1990). ARRL Handbook for the Radio Amateur. ... Load banks are connected to electrical power supplies to simulate the supply's intended electrical load for testing purposes. ... A dummy load is a device used to simulate an electrical load, usually for testing purposes. In radio a dummy antenna is ... The dummy load ordinarily should be a pure resistance; the amount of resistance should be the same as the impedance of the ...
*  Helene Langevin
Electrical impedance of acupuncture meridians: the relevance of subcutaneous collagenous bands. PLoS One. 2010; 5(7):e11907. 16 ... Electrical impedance along connective tissue planes associated with acupuncture meridians. BMC Complement Altern Med. 2005; 5: ... Electrical properties of acupuncture points and meridians: a systematic review. Bioelectromagnetics. 2008 May; 29(4):245-56. 24 ...
*  Foster's reactance theorem
The negative impedance converter is an example of such a circuit. Reactance is the imaginary part of the complex electrical ... A series LC circuit has an impedance that is the sum of the impedances of an inductor and capacitor, Z = i ω L + 1 i ω C = i ( ... This is sometimes referred to as the driving point impedance because it is the impedance at the place in the network at which ... This result may seem counterintuitive since admittance is the reciprocal of impedance, but is easily proved. If the impedance ...
*  Arduino
"Electrical Impedance Sensor for Real-Time Detection of Bovine Milk Adulteration". IEEE Sensors Journal. 16 (4): 861-865. doi: ... shield to create retro 2D video games Homemade CNC using Arduino and DC motors with close loop control by Homofaciens Impedance ...
*  Fault current limiter
A simple solution is to add electrical impedance to the circuit. This limits the rate at which current can increase, which ... Electric power distribution systems include circuit breakers to disconnect power in case of a fault, but to maximize ... A fault current limiter is a nonlinear element which has a low impedance at normal current levels, but presents a higher ... In normal operation, current flows through the superconductor without resistance and negligible impedance. If a fault develops ...
*  James B. Ranck Jr.
From 1959 until 1973 Ranck analyzed the flow of electric current in brain, electrical properties of glia, electric impedance of ... Electrical impedance in the subicular area of rats during paradoxical sleep. Ranck JB Jr. Exp Neurol. 1966 Dec;16(4):416-37. ... In the early phase Ranck studied impedance in the brain, providing basic data for any studies or procedures that employ ... Which elements are excited in electrical stimulation of mammalian central nervous system: a review. Ranck JB Jr. Brain Res. ...
*  Complete blood count
The two main sensors used are light detectors and electrical impedance. The instrument measures the type of blood cell by ...
*  Ohm
... electrical impedance is also measured in ohms. The siemens (symbol: S) is the SI derived unit of electric conductance and ... It is desirable that one unit of electrical potential will force one unit of electric current through one unit of electrical ... Electrical units so defined were not a coherent system with the units for energy, mass, length, and time, requiring conversion ... Alternatively, the electrical units can be related to the mechanical units by defining, for example, a unit of current that ...
*  The Beatles' recording technology
... a sustained plucked electric note that after a few seconds swelled in volume and buzzed like an electric razor. This was the ... With direct input the guitar pick-up is connected to the recording console via an impedance matching DI box. Ken Townsend ... We positioned it directly in front of the bass speaker and the moving diaphragm of the second speaker made the electric current ... Electric and Musical Industries), England, 1948... at www.dhub.org Hertsgaard - A Day in The Life. p75. Kehew, Brian; Kevin ...
*  Multidrop bus
However, modern SDRAM chips exemplify the problem of electrical impedance discontinuity.[clarification needed] Fully Buffered ... A multidrop bus (MDB) is a computer bus in which all components are connected to the electrical circuit. A process of ...