1,400 research outputs found

    タイカノカイシンロン - ソノゼンシノケンキュウ

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    京都大学0048新制・論文博士文学博士乙第1428号論文博第42号新制||文||48(附属図書館)2320UT51-45-D32(主査)教授 赤松 俊秀, 教授 小葉田 淳, 教授 佐伯 富学位規則第5条第2項該当Kyoto UniversityDA

    Study of the Generation Environment and Temporal Development of Dust Storms in the Martian Atmosphere Using a General Circulation Model

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    学位の種別: 課程博士審査委員会委員 : (主査)東京大学准教授 今村 剛, NICT主任研究員 笠井 康子, 東京大学准教授 伊賀 啓太, 東京学芸大学教授 松田 佳久, 東京大学教授 高橋 正

    Peak effect and dynamic melting of vortex matter in NbSe2_2 crystals

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    We present a mode locking (ML) phenomenon of vortex matter observed around the peak effect regime of 2H-NbSe2_2 pure single crystals. The ML features allow us not only to trace how the shear rigidity of driven vortices persists on approaching the second critical field, but also to demonstrate a dynamic melting transition of driven vortices at a given velocity. We observe the velocity dependent melting signatures in the peak effect regime, which reveal a crossover between the disorder-induced transition at small velocity and the thermally induced transition at large velocity. This uncovers the relationship between the peak effect and the thermal melting.Comment: To appear in Physical Review Lette
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