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Sunday, April 26, 2020 | History

2 edition of Notes of cases treated with benefit by high frequency currents found in the catalog.

Notes of cases treated with benefit by high frequency currents

W. F. Somerville

Notes of cases treated with benefit by high frequency currents

  • 260 Want to read
  • 28 Currently reading

Published by John Bale, Sons & Danielsson in London .
Written in English

    Subjects:
  • Electricity in medicine.,
  • Electrotherapeutics.

  • Edition Notes

    Statementby W. F. Somerville.
    The Physical Object
    Pagination15p. :
    Number of Pages15
    ID Numbers
    Open LibraryOL19162635M


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Letter relative to furnishing list of officers of volunteers organized under Act of March 2, 1899, for service in the Philippines, showing travel pay, etc. Letter from the Secretary of War, in response to a Senate resolution of March 21, 1908, calling for a list of officers of the United States volunteers organized under the Act of March 2, 1899, for service in the Philippines, showing the difference between the amount paid each officer under the act of May 26, 1900, as travel pay, etc., and the amount each would have received under the law in force at the time of muster into the service.

Letter relative to furnishing list of officers of volunteers organized under Act of March 2, 1899, for service in the Philippines, showing travel pay, etc. Letter from the Secretary of War, in response to a Senate resolution of March 21, 1908, calling for a list of officers of the United States volunteers organized under the Act of March 2, 1899, for service in the Philippines, showing the difference between the amount paid each officer under the act of May 26, 1900, as travel pay, etc., and the amount each would have received under the law in force at the time of muster into the service.

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Notes of cases treated with benefit by high frequency currents by W. F. Somerville Download PDF EPUB FB2

The highest notes are emitted by the high-tension discharges of an induction coil in which the arc is, so to speak, all surface. If R be the resistance of an arc, and C the current, and the linear dimensions be n times increased, then the resistance is R/n, and with the same current density the current would be n2C; hence the heating effect is.

Tesla preferred multiple series gaps, sometimes more t as illustrated in T. Martin's book, The Inventions, Researches and Writings of Nikola Tesla, 1 which has now become a classic in several reprint editions and is available from several sources, and in Nikola Tesla on.

He notes that when the body is transversed by alternating currents above a certain frequency, heat is perceived. (France) – D’Arsonval, in a communication to the Societe de Bioloaie, shows that a high frequency current (greater than l 0,Hz) can be passed through the body without producing any sensation other than heat.

Phenomena of Alternating Currents of Very High Frequency. by Nikola Tesla. Electrical World, The The greater the surface by a given heating effect in the arc, the higher the limit of audition. The highest notes are emitted by the high-tension discharges of an induction coil in which the arc is, so to speak, all surface.

as suggested by. This is an English work on electrotherapy. The author started, as he says, with some skepticism as to the value of these Notes of cases treated with benefit by high frequency currents book, but after an extensive trial became convinced of their great usefulness in some cases.

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To detect these currents some device has to be inserted in the antenna circuit or else inductively connected with it which is sensitive to high frequency currents. 0 This device was converted into an electric wave detector as follows: The mercury-steel junction was acted upon by the electromotive force of a shunted single cell and a siphon.

Tesla, Nikola, Experiments with Alternate Currents of High Potential and High Frequency, McGraw Publishing Co., New York,pp. New York,pp. (4) Discussion of "A History of Some Foundations of Modern Radio-Electronic Technology," Comments by Lloyd Espenschied, Proceedings of the IRE, July, (Vol.

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All three studies are consistent in. But for high currents that exceed the capabilities of the capacitance channel, irreversible chemical reac tions will take place, and these are reflected in Figure b y a much reduced impedance Z.

Paresthesia-free high frequency SCS (HF-SCS) refers to kilohertz-frequency impulses delivered via percutaneously placed epidural electrodes. Having level I evidence for patients with back or leg pain, HF-SCS at 10 kHz showed superiority to P-SCS in two separate randomized clinical trials (Kapural et al., ; Kapural et al., ).Author: Jacob Caylor, Rajiv Reddy, Sopyda Yin, Christina Cui, Mingxiong Huang, Charles Huang, Ramesh Rao, De.

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