Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Kyyoul Yun"'
Autor:
Kyyoul Yun
Publikováno v:
Magnetism, Vol 3, Iss 2, Pp 158-168 (2023)
The magnetic characteristics of electromagnetic steel sheets used for motors are evaluated under ideal sinusoidal excitation. However, in actual equipment driving, excitation by pulse-width modulation (PWM) waves is the mainstream method. Therefore,
Externí odkaz:
https://doaj.org/article/8d5ceeb1d473400e893ecb1284a65b13
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 1-10 (2023)
Iron dust cores produced from insulated iron particles via the powder metallurgy pressure-forming process are suitable for small motor cores, reactor cores, and inductors because of their high shape flexibility. However, the dust core’s magnetic pr
Externí odkaz:
https://doaj.org/article/ce36a3acc4d145f5985a82209bbefb60
Autor:
Yoshitaka Maeda, Shinya Urata, Hideo Nakai, Yuuya Takeuchi, Kyyoul Yun, Shunji Yanase, Yasuo Okazaki
Publikováno v:
AIP Advances, Vol 7, Iss 5, Pp 056664-056664-5 (2017)
In designing motors, one must grasp the magnetic properties of electrical steel sheets considering actual conditions in motors. Especially important is grasping the stress dependence of magnetic power loss. This paper describes a newly developed appa
Externí odkaz:
https://doaj.org/article/99b1fa5833b14232a90add09131455e6
Autor:
Nobuhiro Takita, Kyyoul Yun
Publikováno v:
Materials Science Forum. 1034:135-140
To estimate the magnetic properties of the magnetic material, magnetic flux density waveform (B waveform) must be sinusoidal wave. However, it is necessary to control the exciting waveform in consideration of the distortion, because voltage waveform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b74fe76f54e8d1fee81558d5d7deccb6
https://doi.org/10.4028/www.scientific.net/msf.1034.135
https://doi.org/10.4028/www.scientific.net/msf.1034.135
Autor:
Kyyoul Yun, Hideaki Miyahara
Publikováno v:
Materials Science Forum. 1034:141-149
To estimate the magnetic properties with two-dimensional AC-magnetization with two-dimensional DC-biased magnetization, three different grades of non-oriented electrical steel sheets with two-dimensional DC-biased magnetization were prepared. As a re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a22234019674669697da9f4eb940e11
https://doi.org/10.4028/www.scientific.net/msf.1034.141
https://doi.org/10.4028/www.scientific.net/msf.1034.141
Autor:
Kyyoul Yun, Hideo Nakai, Yuuya Takeuchi, Shinya Urata, Yasuo Okazaki, Yoshitaka Maeda, Shunji Yanase
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 139:190-196
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f210d014dad11cfadd579ed6a3c1ab50
https://doi.org/10.1541/ieejfms.139.190
https://doi.org/10.1541/ieejfms.139.190
Autor:
Kyyoul Yun
Publikováno v:
Journal of Electronic Materials. 48:1472-1479
In this paper, the increment factor of the iron loss by inverter excitation compared with sine wave excitation was clarified using the magnetic hysteresis curve, and change in the parameter which can be understood intuitively was explained. When α (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f88a35262a61754de15fb9237768d553
https://doi.org/10.1007/s11664-018-6804-6
https://doi.org/10.1007/s11664-018-6804-6
Autor:
Yoshitaka Maeda, Shunji Yanase, Kyyoul Yun, Hideo Nakai, Yuuya Takeuchi, Shinya Urata, Yasuo Okazaki
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 138:490-496
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68f3d58096d89e9f9eb580c1cfef894a
https://doi.org/10.1541/ieejfms.138.490
https://doi.org/10.1541/ieejfms.138.490
Autor:
Kyyoul Yun
Publikováno v:
Journal of the Japan Society of Applied Electromagnetics and Mechanics. 26:448-453
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27a89c03828df98603084b036e52265c
https://doi.org/10.14243/jsaem.26.448
https://doi.org/10.14243/jsaem.26.448
Publikováno v:
IEEE Transactions on Magnetics. 53:1-4
In this paper, we propose a new metal bonding method using a ceramic precursor (zirconium butoxide or titanium tetraisopropoxide) or a ceramic nano powder. Magnetic hysteresis curves of the bonded specimen did not change significantly after bonding i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae43a82c81e3fe374d5d6247e131f354
https://doi.org/10.1109/tmag.2017.2720139
https://doi.org/10.1109/tmag.2017.2720139