###### **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. ...###### 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 ...