Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Tetsuji Okamura"'
Publikováno v:
IEEE Transactions on Applied Superconductivity. 32:1-5
Publikováno v:
IEEE Transactions on Applied Superconductivity. 32:1-4
Publikováno v:
N. Hirano, S. Nagai, Y. Okazaki, T. Okamura, Y. Onodera and T. Mito, "Feasibility Study of High-Efficiency Cooling of High-Temperature Superconducting Coils by Magnetic Refrigeration," in IEEE Transactions on Applied Superconductivity, vol. 31, no. 5, pp. 1-4, Aug. 2021, Art no. 0600104, doi: 10.1109/TASC.2021.3055994.
As a high-efficiency cooling technology for high-temperature superconducting coils, we have begun research and development to examine the feasibility of a cooling assist technology that maintains a cryogenic state by combining the magnetic force gene
Publikováno v:
Chemical Physics Letters. 811:140250
Publikováno v:
IEEE Transactions on Applied Superconductivity. 28:1-7
We have been developing on-board REBCO magnets for maglev. Because of the running vibration, the on-board magnets receive vibration acceleration up to 10 G (98 m/s2). For the realization of the on-board REBCO magnet, we carried out mechanical vibrati
Autor:
Yoshinori Yanagisawa, H Maeda, R. Piao, Tetsuro Matsuda, Takatoshi Ueno, Shinji Matsumoto, Tetsuji Okamura, Mamoru Hamada
Publikováno v:
Cryogenics. 90:47-51
Recently, degradation of a high-field REBCO coil due to strong electromagnetic forces, has been identified. This issue is related to a conductor movement, forming a kink in the conductor body, and hence epoxy impregnation should be effective to preve
Publikováno v:
Cryogenics. 86:38-41
REBCO-coated conductor having a high critical current is promising for applications in next generation apparatuses such as ultra-high field NMR, high-resolution MRI, and high-precision accelerator. However, it has an important challenge for applicati
Publikováno v:
Naoki Hirano et al 2020 J. Phys.: Conf. Ser. 1559 012090
The fundamental research of HTS coil cooling assist technology by magnetic refrigeration has been studied. Using magnetic refrigeration technology, we are focusing on numerical analysis to see if the cooling efficiency around 20 K of high-temperature
Autor:
Naoki Hirano, Tetsuji Okamura
Publikováno v:
Journal of the Japan Society of Applied Electromagnetics and Mechanics. 21:10-14
Publikováno v:
Cryogenics. 51(6):321-325
A cold storage system specialized in mobile high-temperature superconducting (HTS) magnets (e.g. for magnetically levitated (maglev) vehicles) has been proposed. In this system, a cooling source is detachable and a HTS coil is capable of maintaining