*  Impedance cardiography - Wikipedia
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 ...
  https://en.wikipedia.org/wiki/Impedance_cardiography
*  US3573647A - Electrical impedance converting networks - Google Patents
When a network is capacitively terminated it input port impedance is inductive. If in each of a group of capacitively ... 3. An electrical impedance network as claimed in claim 2 wherein the first impedance is a resistor, and the second impedance is ... 9. An electrical impedance network as claimed in claim 8 wherein the first impedance is a resistor, and the second impedance is ... An electrical impedance network as claimed in claim 8 wherein the first impedance is the output load impedance, and the second ...
  https://patents.google.com/patent/US3573647?oq=inventor%3A%22Arthur+R.+Hair%22
*  Patent US3373360 - Automatic coaxial switch - Google Patents
Shielded electrical switching jack with impedance balancing network. US3876938 *. Jun 18, 1973. Apr 8, 1975. Kabushikikaisha ... The opposite end of spring reed 36 is fixed in the insulation of coaxial connector 44 and in electrical contact with the center ...
  http://www.google.com/patents/US3373360?dq=5,960,411
*  James B. Ranck Jr. - Wikipedia
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. ...
  https://en.wikipedia.org/wiki/James_B._Ranck_Jr.
*  US3340867A - Impedance plethysmograph - Google Patents
Since the current is constant, the voltage equals a constant times the impedance. If the electrical input impedance of the ... A61B5/0535-Measuring electrical impedance or conductance of a portion of the body impedance plethysmography ... Electrical signal slope polarity change detector US3730171A (en) * 1971-09-23. 1973-05-01. R Namon. Impedance related blood ... Impedance plethysmography method and apparatus US4116231A (en) * 1975-12-10. 1978-09-26. Tokyo Shibaura Electric Co., Ltd.. ...
  https://patents.google.com/patent/US3340867A/en
*  US5597313A - Electrical connectors - Google Patents
The relationship of the conductor elements to the planar grounds is such as to obtain a characteristic impedance which is the ... Various electrical connectors include conductor elements extending through a support body in parallel insulated relation to one ... Electrical interconnectors and connector assemblies US3871728A (en) * 1973-11-30. 1975-03-18. Itt. Matched impedance printed ... Electrical shielding US4720770A (en) * 1986-11-03. 1988-01-19. Honeywell, Inc.. Constant impedance integrated circuit connector ...
  https://patents.google.com/patent/US5597313?oq=6978253
*  Brian Andrew Hills - Wikipedia
... a method to detect tissue bubbles using electrical impedance, the use of kangaroo rats as animal models for decompression ... Hills made a significant contribution to the mainstream scientific literature of some 186 articles between 1967 and 2006. The ...
  https://en.wikipedia.org/wiki/Brian_Andrew_Hills
*  US7628757B1 - System and method for impedance-based detection of pulmonary edema and reduced respiration using an implantable...
Techniques are also provided for controlling operation of an impedance-based reduced respiration detector, i.e. a detector ... patterns derived from thoracic impedance signals. In one example, a numerical ratio is calculated between average peak-to-peak ... based on analysis of respiratory patterns derived from a thoracic impedance signal. If the numerical ratio falls below a ... respiration cannot then reliably be derived from an analysis of respiration patterns obtained from the thoracic impedance ...
  https://patents.google.com/patent/US7628757
*  Patent US6737932 - Broadband impedance transformers - Google Patents
The invention concerns an impedance transforming device that includes a dielectric circuit board substrate. The substrate has ... the geometry of certain circuit elements may be physically large or miniaturized due to the unique electrical or impedance ... impedance. . . of. . . the. . . input. . . transmission. . . line. ;. . and. Z. 02. . . is. . . the. . . load ... impedance. . . of. . . the. . . quarter. . -. . wave. . . section. ;. Z. 01. . . is. . . the. . . ...
  http://www.google.com/patents/US6737932?dq=5,222,134
*  PREFERRED-CIRCUIT TECHNIQUES FOR RECEIVER APPLICATIONS.
ELECTRICAL IMPEDANCE, MICROELECTRONICS, TRANSISTORS, RADIO RECEIVERS, RADAR RECEIVERS, FIELD EFFECT TRANSISTORS, TUNNEL DIODES ...
  http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=AD0817268
*  US4561953A - Solid-liquid separation process for fine particle suspensions by an electric and ultrasonic field -...
The concurrently applied electrical field between the electrodes causes the particles to migrate away from the permeable ... The sonic or ultrasonic field is then applied to the suspension concurrently with the electrical field, at a frequency and ... has a faster rate of water removal and achieves a lower moisture content than if only an electrical field or acoustical field ... suspension by concurrently subjecting the aqueous suspension to the action of a sonic or ultrasonic field and an electrical ...
  https://patents.google.com/patent/US4561953
*  Patent US4614905 - Charging regulator - Google Patents
Electrical storage cell life extender. US5270635 *. Feb 14, 1992. Dec 14, 1993. Solid State Chargers, Inc.. Universal battery ... A PNP transistor is included in the impedance circuit in the example described above. It is obvious that an NPN transistor may ... Device for Storing Electrical Energy. US20160043579 *. Oct 19, 2015. Feb 11, 2016. The Charles Stark Draper Laboratory, Inc.. ... Gen Electric. Battery charging control using temperature differential circuit. US4061955 *. May 19, 1976. Dec 6, 1977. The ...
  http://www.google.com/patents/US4614905?dq=7,446,777
*  Anthony Llewellyn - Wikipedia
His research interests included the development of impedance-based sensor measurement methods and instrumentation for invivo ... IEEE Transactions on Dielectrics and Electrical Insulation 16(5): 1348-1355. His current work was presented at the 2010 ... Llewellyn was selected as a scientist-astronaut by NASA in August 1967. He participated in flight training as part of NASA ... monitoring of tissue after the application of an electric field mediated plasmid delivery protocol ( ...
  https://en.wikipedia.org/wiki/Anthony_Llewellyn
*  AMS :: Appendix 3: Report from the Mathematics Department at the University of Rochester
ELECTRICAL ENGINEERING (126 schools ranked). MATERIALS SCIENCE (65 schools ranked). MECHANICAL ENGINEERING (110 schools ranked) ... Keynote speaker at the AMS/SIAM Conference on Impedance Tomography, University of Washington, 1995,, and (2) Editorial Board of ... Three of our faculty have bridged to Electrical Engineering, Chemical Engineering, and Computer Science. In each case, these ... Collaborators: Emil Wolf ( optics), Martin Feinberg ( engineering), Robert Waag ( electrical engineering and radiodology). ...
  http://www.ams.org/publicoutreach/roch-ap3
*  Resonance - Wikipedia
Electrical resonance occurs in an electric circuit at a particular resonant frequency when the impedance of the circuit is at a ... motion Earthquake engineering Electrical resonance Electric dipole spin resonance Formant Harmonic oscillator Impedance Limbic ... In electrical engineering, this approximate symmetric response is known as the universal resonance curve, a concept introduced ... ISBN 978-0-262-19229-3. James H. Harlow (2004). Electric Power Transformer Engineering. CRC Press. pp. 2-216. ISBN 978-0-8493- ...
  https://en.wikipedia.org/wiki/Resonance
*  Patent US4903701 - Oxygen sensing pacemaker - Google Patents
The low impedance of the cell allows it to abruptly increase its current output when required by sensor activation. Basic ... Pulsewidth electrical stimulation. US20030083728 *. Oct 30, 2002. May 1, 2003. Wilson Greatbatch. Hermetic component housing ... The high impedance of resistor 326 also allows generation of pacing pulses during telemetry of the sensed oxygen saturation ... Pulsewidth electrical stimulation. US7139613. Dec 11, 2003. Nov 21, 2006. Medtronic, Inc.. Implantable medical device ...
  http://www.google.com/patents/US4903701?dq=7395252
*  Investigation into the impact of various factors on the high voltage overhead transmission line impedances and admittances |...
Electric Power Generation, Transmission, and Distribution, 3rd ed., L.L. Grigsby, Ed. CRC Press, Taylor & Francis Group, 2012. ... Investigation into the impact of various factors on the high voltage overhead transmission line impedances and admittances. I.E ... 8. Ritzmann, D., Wright, P.S., Holderbaum, W., Potter, B. A method for accurate transmission line impedance parameter ... Eleven different scenarios were considered, each focusing on a certain factor affecting the line impedance and admittance ...
  http://vestnik.ispu.ru/en/node/596
*  Patente US3701049 - Microwave oscillator employing a cavity resonator having dielectric walls ... - Google Patentes
The cavity is matched to external loads by utilizing the dielectric walls of the resonator as a quarter-wave impedance ... said faces form an impedance transformer and a cavity resonator respectively, the electrical length of the impedance ... the electrical length of the impedance transformer being substantially one quarter of the wavelength of the resonant frequency ... the electrical length of said impedance transformer being substantially one quarter of the wavelength of the resonant frequency ...
  http://www.google.es/patents/US3701049
*  Relative humidity sensitive material - General Electric Company
This function is accomplished by impedance transducer 22 which accepts as input an impedance dependent signal and produces as ... Adsorption electric hygrometer. 1962-02-27. Wexler et al.. 733/365. 2775511. Oxygen generator. 1956-12-25. Geffroy et al.. 422/ ... The varying impedance of the sensor of the present invention may be readily indicated through the use of a conventional bridge ... The size and electrical characteristics of the present sensor are highly compatible with the use of the sensor in such solid- ...
  http://www.freepatentsonline.com/4373391.html
*  Patent US7391637 - Semiconductor memory device with high permeability composite films to reduce ... - Google Patents
This means the impedance looking into the sending end of the transmission line will just be the characteristic impedance of the ... but both the electric and magnetic fields are now confined in both the x and y direction. Here the conductors are separated by ... The system 1300 includes a low output impedance driver 1310 having a driver impedance, as is well known in the art. The low ... wherein at least one transmission line has a first end coupled to a low output impedance driver having a driver impedance and a ...
  http://www.google.com/patents/US7391637?dq=7,346,545
*  US5313952A - Electrode attachment apparatus - Google Patents
Electrode assembly for electrical impedance tomography US8768429B2 (en) * 2005-12-23. 2014-07-01. E.I.T. Pty Ltd.. Internal ... Electrical impedance tomography system US9247908B2 (en) * 2013-12-06. 2016-02-02. King's Metal Fiber Technologies Co., Ltd.. ... Electrode assembly for electrical impedance tomography US20090227857A1 (en) * 2008-03-06. 2009-09-10. Chuck Rowe. Biomedical ... Electrical impedance tomography system US9439800B2 (en) 2009-01-14. 2016-09-13. Ossur Hf. Orthopedic device, use of orthopedic ...
  https://patents.google.com/patent/US5313952A/en
*  Patente US4696188 - Semiconductor device microstructure - Google Patentes
The device further comprises member means comprising first and second thermal-to-electric transducer or static electric element ... A standard temperature sensor in industry has an electrical impedance of 100 ohms. However, for the purpose of the present ... Electric current flowing through the resistor causes the resistor to increase in temperature due to electrical power ... For processing purposes, it is much more difficult to obtain a typical impedance precision of 0.1 percent with an impedance of ...
  http://www.google.es/patents/US4696188?dq=flatulence
*  Biomedizinische Technik/Biomedical Engineering
Electric impedance tomography for monitoring volume and size of the urinary bladder. Leonhardt, Steffen / Cordes, Axel / Plewa ... Investigating the Influence of 3D Cell Morphology on Neural Response During Electrical Stimulation by Encke, Jörg/ Benav, Heval ... Novel telemetric signal averaging ECG approach to determine electrical atrial and ventricular conduction delays in implantable ...
  https://www.degruyter.com/view/j/bmte.2011.56.issue-6/issue-files/bmte.2011.56.issue-6.xml
*  Single-unit recording - Wikipedia
They "resemble a leaky electrolytic capacitor, having a very high low-frequency impedance and low high-frequency impedance". ... There is also electrical interference inherent in these electrodes and amplifiers. Metal electrodes are made of various types ... As an action potential propagates through the cell, the electric current flows in and out of the soma and axons at excitable ... The charges orient at the interface to create an electric double layer; the metal then acts like a capacitor. The change in ...
  https://en.wikipedia.org/wiki/Single-unit_recording
*  Physiogenic Hearing Impairment in Adults | Springer for Research & Development
Brooks, D. N. The role of the acoustic impedance bridge in impedance screening. Scandinavian Audiology,1974, 3,99-.104.Google ... Davis, H. Slow electrical responses of the human cortex. Proceedings of the American Philosophical Society, 1968, 112, 150-156. ... Keith, R. W. Impedance audiometry with neonates. Archives of Otolaryngology, 1973, 97, 465-467.CrossRefGoogle Scholar ... Jerger, J. Impedance terminology. Archives of Otolaryngology, 1975, 101, 589-590.CrossRefGoogle Scholar ...
  https://rd.springer.com/chapter/10.1007/978-1-4757-9760-2_3