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Volume 42, Issue 412
Displaying 1-3 of 3 articles from this issue
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Y. FUKUDA1922 Volume 42 Issue 412 Pages 829-866
Published: 1922
Released on J-STAGE: November 20, 2008
JOURNAL FREE ACCESSDownload PDF (2406K) -
TETSUTARO MIYAZAKI1922 Volume 42 Issue 412 Pages 867-882
Published: 1922
Released on J-STAGE: November 20, 2008
JOURNAL FREE ACCESSMany investigations have been performed on rotary magnetic hysteresis, yet even the recent results show a great diserepance. This inconsistency is thought due chiefuly to the systematic errors of various measuring methods as well as the difficulty of extirpation of this phenomenon from its masking effects.
Taking the irregularity of the ele tromagnetic field brought into existence by the unsymmetrical forms of test pieces and Joule's effect as chief detrimental masks, the author of this paper describes a comparatively accurate method consisting of the measurement of torque of a solid spherical test piece in a rotary magnetic field and the correction of Joule's effect.
The practice of this method is now gong on in the author's laboratory.View full abstractDownload PDF (583K) -
ISAMU YAMAMOTO1922 Volume 42 Issue 412 Pages 883-904
Published: 1922
Released on J-STAGE: November 20, 2008
JOURNAL FREE ACCESSThis is the report describiug the outline of Wireless Telegraphy and Telephony in Europe (England, France and Germany) and in America, and contains the following subjects.
(1) On the British Wireless Telegraphy Committee.
(2) Paris Radio Central.
(3) Other large power Stations in France.
(4) Nauen and Koenigswusterhausen.
(5) New York Radio Central.
(6) Amateur Radio in America.View full abstractDownload PDF (1747K)
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