Reduction of AC Copper Loss in Rectangular Copper Wire using Magnetic Path Control Technology

2020 ◽  
Vol 140 (7) ◽  
pp. 364-371
Author(s):  
Kenta Torishima ◽  
Kazuhiro Shimura ◽  
Mitsuhide Sato ◽  
Tsutomu Mizuno
2020 ◽  
Vol 56 (3) ◽  
pp. 1-4
Author(s):  
K. Shimura ◽  
T. Yamamoto ◽  
Y. Bu ◽  
T. Mizuno

2019 ◽  
Vol 55 (7) ◽  
pp. 1-7 ◽  
Author(s):  
Yuta Tokudaiji ◽  
Daichi Miura ◽  
Yusuke Hattori ◽  
Kohei Murasato ◽  
Yinggang Bu ◽  
...  

2020 ◽  
Vol 6 ◽  
pp. 491-496
Author(s):  
Kazuhiro Shimura ◽  
Yasuyuki Kono ◽  
Mitsuhide Sato ◽  
Yinggang Bu ◽  
Tsutomu Mizuno

Author(s):  
A. Gonzalez Angulo ◽  
R. Berlioz ◽  
R. Aznar

Recent ultrastructural studies on endometrial tissues from women wearing copper, wire intrauterine devices have disclosed morphological evidence of impaired glycogen degradation and secretion resulting in interference with the viability of blastocysts. Reduced microapocrine secretion observed with the scanning electron microscope supports this (1). In addition, organelle modifications have been observed in the epithelial cells of these women. The changes are seen in biopsies taken in the proliferative phase of the cycle and consist of mitochondrial vacuolation and myelin figure formation. These modifications disappear in the secretory phase and therefore have been regarded as reversible (2).The aim of the present studies was to investigate surface epithelial changes as well as organelle modifications in relation to the site of contact with an IUD that releases greater amounts of copper. Endometrial tissue was obtained from the uterine cavity of four young women wearing TCu-380-A intrauterine contraceptive devices for 4-6 weeks.


2020 ◽  
Vol 64 (1-4) ◽  
pp. 1495-1504
Author(s):  
Fangchao Xu ◽  
Yongquan Guo ◽  
Ran Zhou ◽  
Junjie Jin ◽  
Chuan Zhao ◽  
...  

To solve the problem of reduction of suspension force of permanent magnet system with variable magnetic flux path control, according to the structure of the system, suspension principle of the permanent magnet system with variable magnetic flux path control and the generation principle of the load torque, the influence of the mechanical structure of the system on the suspension force is analyzed by changing part of parameters of the system structure. The results show that the existence of magnetic isolation plate is the main reason for the decrease of suspension force, the permanent magnet ring can be thickened to 11.91 mm, the annular gap can be reduced to 1 mm, thickness of the “F” shaped magnetizer can be increased to 9 mm to increase the suspension force.


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