Zobrazeno 1 - 10
of 220
pro vyhledávání: '"Kazuo Funaki"'
Autor:
Atsushi Komuro, Satomi Teraoka, Yasushi Ishikawa, Masanori Tsuboko, Mika Tanno, Kouichi Ishimori, Kazuo Funaki, Jiro Izumida, Tomiyoshi Saito
Publikováno v:
Annals of Nuclear Cardiology. 8:30-35
Autor:
Hiroshi Okamoto, Masataka Iwakuma, Kazuo Funaki, Hidemi Hayashi, Yoshihiro Gosho, Daisuke Moriwaki, Yuh Shiohara, Takeshi Ohkuma, T. Izumi, Keisuke Kumano, Akihiko Tagomori
Publikováno v:
Physics Procedia. 36:1109-1114
RE1Ba2Cu3O7-δ(RE: Rare Earth, Y Gd and so on, REBCO) superconducting tapes have great performance in critical current density, J c, property even at liquid nitrogen temperature. However, it is necessary to enhance a current capacity for practical us
Autor:
M. Kikuchi, K. Nogami, Shinichi Kobayashi, Masataka Iwakuma, K. Hayashi, Naoki Ayai, Kazuo Funaki, M. Kawasaki
Publikováno v:
Physica C: Superconductivity and its Applications. 471:1110-1113
We have been developing twisted Bi-2223 multifilamentary taped wires to suppress the AC losses in perpendicular-field configuration for industrial-production process. It is confirmed that the hysteretic losses in the filamentary region can be reduced
Publikováno v:
Physica C : Superconductivity. 470(20):1321-1324
AC losses in a superconductor strip are numerically evaluated by means of a finite element method formulated with a current vector potential. The expressions of AC losses in an infinite slab that corresponds to a simple model of infinitely stacked st
Autor:
H. Yanagida, Hiroki Kamijo, S. Yamasaki, Masataka Iwakuma, Kazuo Funaki, Yusuke Fukumoto, Y. Sasasige, Naoki Ayai, T. Ishida
Publikováno v:
IEEE Transactions on Applied Superconductivity. 19:3053-3056
We have been designing and developing advanced Ag-sheathed Bi-2223 multifilamentary wires for the future applications to superconducting transformers of electric rolling stocks. Trial wires were twisted without remarkable degradation in the transport
Autor:
Kazuhiro Kajikawa, Kazuhide Tanaka, S. Sato, Hiroaki Kumakura, Itsuo Aoki, Kenji Nakamichi, Yuichi Kihara, Michiya Okada, Masaaki Matsuo, K. Tomachi, Kazuo Funaki, Takanobu Kamiya
Publikováno v:
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 44:366-372
Autor:
Masataka Iwakuma, T. Ishida, Kazuo Funaki, Yasuzo Tanaka, Naoki Ayai, T. Sueyoshi, Kozo Osamura, Jun Fujikami
Publikováno v:
Physica C: Superconductivity. 468:1787-1791
We performed a round robin test to measure AC losses in Bi-2223 Ag-sheathed tapes with saddle-shaped pickup coils in an alternating perpendicular magnetic field at liquid nitrogen temperature. Two laboratories participated in the round robin test wit
Publikováno v:
Physica C: Superconductivity. 468:1723-1726
We are experimentally studying basic AC loss properties of IBAD/CVD-YBCO coated conductors with a copper layer for stabilizing, especially the temperature dependence of perpendicular field loss in alternating electromagnetic environments. We prepared
Autor:
K. Tomachi, R. Yokoo, Kazuhiro Kajikawa, Hiroyuki Fujishiro, Kazuo Funaki, Hidemi Hayashi, Keiji Enpuku
Publikováno v:
Physica C: Superconductivity. 468:1494-1497
The magnetization properties in a cylindrical superconductor with an infinite length exposed to a pulsed external magnetic field are numerically evaluated by means of a coupled finite element method. In order to estimate the distributions of magnetic
Autor:
Hiroyuki Fujishiro, Kazuo Funaki, Keiji Enpuku, Hidemi Hayashi, R. Yokoo, Kazuhiro Kajikawa, K. Tomachi
Publikováno v:
IEEE Transactions on Applied Superconductivity. 18:1557-1560
The magnetization property in a cylindrical superconductor exposed to an external pulsed magnetic field is numerically evaluated by means of the energy minimization. In order to estimate an increase in magnetic energy due to a current induction, the