Zobrazeno 1 - 10 of 46 pro vyhledávání: '"Yoshitaka Tani"'
1
Plasma hysteresis caused by high-voltage breakdown in gridded microwave discharge ion thruster μ10
Autor: Yusuke Yamashita, Ryudo Tsukizaki, Kazutaka Nishiyama, Koda Daiki, Kana Hattori, Ryo Shirakawa, Yoshitaka Tani
Publikováno v: Acta Astronautica. 185:179-187
A cluster of gridded microwave discharge ion thrusters μ10 contributed to the success of the deep space exploration missions of the Japanese asteroid explorers Hayabusa and Hayabusa2. To meet the demands of the next mission DESTINY+, the maximum ion
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::97448995e07634bd11c12d291486fff3
https://doi.org/10.1016/j.actaastro.2021.05.001
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2
Effect of discharge chamber geometry on ion loss in microwave discharge ion thruster
Autor: Kazutaka Nishiyama, Ryudo Tsukizaki, Hitoshi Kuninaka, Yoshitaka Tani, Yusuke Yamashita
Publikováno v: Acta Astronautica. 176:77-88
The authors redesigned the discharge chamber for the μ10 microwave discharge ion thruster to improve its thrust performance and succeeded in enhancing the maximum beam current and thrust efficiency. However, it was found that the ion current ratio e
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8dddbe8f6d217315d24fabe341f91305
https://doi.org/10.1016/j.actaastro.2020.05.062
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5
Akademický článek
Magnetic anisotropy driven by ligand in 4d transition-metal oxide SrRuO3
Autor: Yuki K. Wakabayashi, Masaki Kobayashi, Yuichi Seki, Yoshinori Kotani, Takuo Ohkochi, Kohei Yamagami, Miho Kitamura, Yoshitaka Taniyasu, Yoshiharu Krockenberger, Hideki Yamamoto
Publikováno v: APL Materials, Vol 12, Iss 4, Pp 041119-041119-9 (2024)
The origin of magnetic anisotropy in magnetic compounds is a longstanding issue in materials science, and nonmagnetic ligand ions are considered to contribute little to magnetic anisotropy. Here, we introduce the concept of ligand-driven magnetic ani
Externí odkaz: https://doaj.org/article/ec6f9790c43843bc8fcfe9328e2e1fd4
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8
Akademický článek
Characteristics of Plasma and Gas in Microwave Discharge Ion Thruster μ10 Using Kinetic Particle Simulation.
Autor: Yusuke YAMASHITA, Yoshitaka TANI, Ryudo TSUKIZAKI, Daiki KODA, Kazutaka NISHIYAMA
Publikováno v: Transactions of the Japan Society of Aeronautical & Space Sciences, Aerospace Technology Japan; 2020, Vol. 18 Issue 3, p57-63, 7p
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9
Akademický článek
High-mobility two-dimensional carriers from surface Fermi arcs in magnetic Weyl semimetal films
Autor: Shingo Kaneta-Takada, Yuki K. Wakabayashi, Yoshiharu Krockenberger, Toshihiro Nomura, Yoshimitsu Kohama, Sergey A. Nikolaev, Hena Das, Hiroshi Irie, Kosuke Takiguchi, Shinobu Ohya, Masaaki Tanaka, Yoshitaka Taniyasu, Hideki Yamamoto
Publikováno v: npj Quantum Materials, Vol 7, Iss 1, Pp 1-12 (2022)
Abstract High-mobility two-dimensional carriers originating from surface Fermi arcs in magnetic Weyl semimetals are highly desired for accessing exotic quantum transport phenomena and for topological electronics applications. Here, we demonstrate hig
Externí odkaz: https://doaj.org/article/543a00274e01498294525e5a1b30f552
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10
Akademický článek
Bayesian optimization with experimental failure for high-throughput materials growth
Autor: Yuki K. Wakabayashi, Takuma Otsuka, Yoshiharu Krockenberger, Hiroshi Sawada, Yoshitaka Taniyasu, Hideki Yamamoto
Publikováno v: npj Computational Materials, Vol 8, Iss 1, Pp 1-9 (2022)
Abstract A crucial problem in achieving innovative high-throughput materials growth with machine learning, such as Bayesian optimization (BO), and automation techniques has been a lack of an appropriate way to handle missing data due to experimental
Externí odkaz: https://doaj.org/article/65034e45cecd4494ae1f18f352468983
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