Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Hiroshi Tsukahara"'
Publikováno v:
NPG Asia Materials, Vol 16, Iss 1, Pp 1-12 (2024)
Abstract The mechanism of energy loss due to magnetostriction in soft magnetic materials was analytically formulated, and our experiments validated this formulation. The viscosity of magnetic materials causes the resistive force acting on magnetic do
Externí odkaz:
https://doaj.org/article/5cfce84126f4478cb47baa57c38925f5
Publikováno v:
AIP Advances, Vol 8, Iss 5, Pp 056226-056226-5 (2018)
We investigated the effects of grain boundary phases on magnetization reversal in permanent magnets by performing large-scale micromagnetic simulations based on Landau–Lifshitz–Gilbert equation under a periodic boundary. We considered planar grai
Externí odkaz:
https://doaj.org/article/d0bba11073f74ed4a81c926baaf440c3
Publikováno v:
AIP Advances, Vol 7, Iss 5, Pp 056234-056234-4 (2017)
We numerically demonstrated the magnetization reversal process inside a hot-deformed nanocrystalline permanent magnet. We performed large-scale micromagnetics simulation based on the Landau–Lifshitz–Gilbert equation with 0.1 billion calculation c
Externí odkaz:
https://doaj.org/article/7d4f9129728b4580904330f8a2531f72
Publikováno v:
AIP Advances, Vol 7, Iss 5, Pp 056224-056224-4 (2017)
We performed a large-scale micromagnetics simulation on a supercomputing system to investigate the properties of isotropic nanocrystalline permanent magnets consisting of cubic grains. In the simulation, we solved the Landau–Lifshitz–Gilbert equa
Externí odkaz:
https://doaj.org/article/166dde711cd243f785858bb3a290fc09
Autor:
Hiroshi Tsukahara, S.-J. Lee, Kaoru Iwano, Nobuhito Inami, Tadashi Ishikawa, Chiharu Mitsumata, Hideto Yanagihara, Eiji Kita, Kanta Ono
Publikováno v:
AIP Advances, Vol 6, Iss 5, Pp 056405-056405-4 (2016)
We implement on our micromagnetics simulator low-complexity parallel fast-Fourier-transform algorithms, which reduces the frequency of all-to-all communications from six to two times. Almost all the computation time of micromagnetics simulation is ta
Externí odkaz:
https://doaj.org/article/ddb4b61d1f284ba69c9c99b2ebc2986d
Publikováno v:
Journal of Natural Language Processing. 29:443-466
Publikováno v:
2022 IEEE Intelligent Vehicles Symposium (IV).
Publikováno v:
NPG Asia Materials. 14
Soft magnetic materials are key materials for the magnetic cores used in motors and generators. To improve the energy efficiency of magnetic cores, it is important to understand the mechanism of energy loss under oscillating magnetic fields. Here, we
Publikováno v:
Journal of Japan Society for Fuzzy Theory and Intelligent Informatics. 32:722-736
Recent advances in experimental techniques have made it possible to manipulate and measure the magnetization dynamics on the femtosecond time scale which is the same order as the correlation time of the bath degrees of freedom. In the equations of mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f189ad2649bb21157774fa5986ecbcc0