Results 211 to 220 of about 277,097 (267)

Losses in silicon-iron

IEEE Transactions on Magnetics, 1974
Measurements of total power loss and domain-wall spacing have been made on individual grains in polycrystalline specimens of commercial grain-oriented 3% silicon-iron material. The loss-per-cycle against frequency characteristic of a grain is found to consist of discrete linear portions, which correspond to different domain-wall spacings. These changes
M. Sharp, K. Overshott
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Annual Iron Loss Associated with Hemodialysis

American Journal of Nephrology, 2016
<b><i>Background:</i></b> In order to keep up the optimal iron status in chronic hemodialysis patients, it is important to know how much iron is lost due to hemodialysis. Residual blood associated with the hemodialysis procedure together with blood sampling inevitably causes the loss of iron in chronic hemodialysis patients ...
Tatsuo, Tsukamoto, Takayuki, Matsubara, Yuka, Akashi, Morihiro, Kondo, Motoko, Yanagita   +4 more
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Armature Iron Losses in Series Motors

Transactions of the American Institute of Electrical Engineers, 1949
IN AN A-C series motor, the flux pulsation in the field is predominantly at line frequency. The field iron loss can be computed easily and represented by a loss component in the magnetizing current. However, due to the rotation of the armature, the gap flux is rotating relative to the armature, as well as pulsating.
Sheldon S. L. Chang, J. H. Karr
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Analysis of iron losses in induction motor with an improved iron-loss model

2014 IEEE Conference and Expo Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014
In order to study iron loss distribution characteristics in stator and motor of induction motor, an improved iron-loss model with higher accuracy is proposed based on time-stepping finite elements. In Section Two,various iron loss formulaes are compared. followed by an miproved iron-loss model.
null Guoqing Yang, null Zongze Cui, null Liwei Song   +2 more
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Iron loss in machines with powdered iron stators

IEEE International Electric Machines and Drives Conference. IEMDC'99. Proceedings (Cat. No.99EX272), 2003
This paper describes iron loss measurements in a permanent magnet servomotor, which has a stator constructed with soft magnetic composites (SMCs). It is shown that whilst the SMC has significantly greater iron loss density than silicon iron steel, it has many other advantages. The SMC machine is shown to outperform its conventional laminated equivalent.
A.G. Jack, B.C. Mecrow, P.G. Dickinson
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The determination of menstrual iron loss

Biochemical Medicine, 1970
Abstract A procedure involving dry ashing and spectrophotometry with thioglycollic acid is described for the determination of iron loss during menstruation. In its development the nonvolatility of iron was checked and wet-oxidation and dry-ashing methods of destroying organic matter compared with special reference to citrated whole blood.
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Iron losses in turbogenerator teeth

Journal of Applied Physics, 1982
The flux density was measured in a typical tooth of a 500-MV A synchronous generator. Peak flux densities of 14.3, 16.9, and 21.2 kG were observed in an open circuit test at 80%, 100%, and 125% of rated voltage. The search coil voltage waveforms were rich in odd harmonics tending toward a square wave.
F. J. Young, H. L. Schenk
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Iron losses in processing tailings

Journal of Mining Science, 2005
For ferruginous quartzite of the Mikhailovsk deposit, the features of mineral composition, iron occurrence, granulometric composition, and opening of phases of stage and total tailings of processing are considered. Extraction of hematite from tailings using combined concentration schemes is one of the variants of complex utilization of mineral source ...
T. N. Gzogyan, S. L. Gubin, S. R. Gzogyan, N. D. Mel’nikova   +3 more
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Iron Loss and Iron Requirement

1983
Measurement of iron loss is technically difficult. Chemical iron balances require meticulous technique to avoid contamination, and they do not allow the differentiation between nonabsorbed iron and iron excreted through the gastrointestinal tract. Isotope techniques require knowledge of the distribution of the radioiron within the organism and the ...
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Iron losses in direct-current machines

Proceedings of the American Institute of Electrical Engineers, 1916
The term iron loss, as used in connection with rotating machinery, is shown to cover a large number of losses, some of which actually do not lie in the iron itself. The term core loss should be used except when the losses are actually located in the iron itself.
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