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Battulga, B.; Nakayama, Masataka; Matsuoka, Shunsuke*; Kondo, Toshiaki*; Atarashi-Andoh, Mariko; Koarashi, Jun
Water Research, 264, p.122207_1 - 122207_12, 2024/10
Times Cited Count：14 Percentile：85.43(Engineering, Environmental)Growing attention has been given to microbial attachment and biofilm formation on microplastics (MPs; sizes: 
5 mm) in the environment. Here, we explore the microbial communities in the plastisphere to improve our understanding of microbial ecology as well as their impacts on aquatic ecosystems. Using the amplicon sequence of 16S and ITS genes, we identified bacterial and fungal community composition and diversity on MPs, surface waters, bottom sediments, and coastal sands in two contrasting coastal areas of Japan. Significantly different microbial diversity and taxonomic composition were detected depending on sample types and research sites. This research highlights the microbial metabolic functions in MP-associated biofilm, which could be the key to uncovering the true impact of plastic debris on the global ecosystem.
Ushigusa, Kenkichi; Ide, Shunsuke; Oikawa, Toshihiro; Suzuki, Takahiro; Kamada, Yutaka; Fujita, Takaaki; Ikeda, Yoshitaka; Naito, Osamu; Matsuoka, Mamoru*; Kondoh, Takashi; et al.
Fusion Science and Technology (JT-60 Special Issue), 42(2-3), p.255 - 277, 2002/09
Times Cited Count：14 Percentile：24.24(Nuclear Science & Technology)Studies on non-inductive current drive and development of an integrated steady-state high performance operation in JT-60 are reviewed. Experiments on lower hybrid current drive in JT-60 haven shown a large non-inductive current up to 3.5MA, high current drive efficiency of 3.6x1019m-2A/W. Basic studies on LH waves in JT-60 have contributed to understand current drive physics. Significant progress in neutral beam current drive has been made in JT-60 by testing the performance of negative ion based NBI (N-NBI). The CD efficiency of ~1.5x1019m-2A /W, and N-NB driven current of ~1MA have been demonstrated in N-NBCD. Strongly localized driven current by electron cyclotron current drive was identified with a fundamental O-mode scheme. Efficiency of 0.5x1019m-2A/W and EC driven current of 0.2MA were achieved and suppression of neo-classical tearing mode was demonstrated. Based on these developments, two integrated steady-state operation scenarios were developed in JT-60, which are reversed magnetic shear (R/S) plasmas and high bp ELMy H-mode. In these operation regimes, discharges have been sustained near the steady-state current profile under full non-inductive current drive. High performance plasmas with a high nDotETio and at high normalized density were also produced under fully non-inductive condition in high bp ELMy H-mode and R/S mode.
Oga, Tokumichi; ; ; ; Ito, Takao; ; Kawai, Mikito; ; Komata, Masao; Kunieda, Shunsuke; et al.
JAERI-Tech 95-044, 147 Pages, 1995/09
no abstracts in English
Kuriyama, Masaaki; ; Araki, Masanori; ; Hanada, Masaya; Inoue, Takashi; Kawai, Mikito; Kazawa, Minoru; ; Kunieda, Shunsuke; et al.
Fusion Engineering and Design, 26, p.445 - 453, 1995/00
Times Cited Count：43 Percentile：95.32(Nuclear Science & Technology)no abstracts in English
Ide, Shunsuke; Naito, Osamu; Kondoh, Takashi; Fujita, Takaaki; Matsuoka, Mamoru*; Ikeda, Yoshitaka; Ushigusa, Kenkichi; JT-60 Team
IAEA-CN-60/A5-4, 0, p.641 - 650, 1995/00
no abstracts in English
Okumura, Yoshikazu; Araki, Masanori; Hanada, Masaya; Inoue, Takashi; Kunieda, Shunsuke; Kuriyama, Masaaki; Matsuoka, Mamoru; Mizuno, Makoto; Ohara, Yoshihiro; Tanaka, Masanobu*; et al.
Production and Neutralization of Negative Ions and Beams; AIP Conference Proceedings 287, p.839 - 848, 1994/00
no abstracts in English
Kuriyama, Masaaki; Kunieda, Shunsuke; Matsuoka, Mamoru; Mizuno, Makoto; Ohara, Yoshihiro; Ohara, Hiroshi; Mogaki, Kazuhiko
JAERI-M 93-059, 13 Pages, 1993/03
no abstracts in English
Kuriyama, Masaaki; ; Araki, Masanori; ; Hanada, Masaya; Inoue, Takashi; Kawai, Mikito; Kazawa, Minoru; ; Kunieda, Shunsuke; et al.
15th IEEE/NPSS Symp. on Fusion Engineering,Vol. 1, 0, p.470 - 473, 1993/00
no abstracts in English
Kuriyama, Masaaki; Ohara, Yoshihiro; ; ; Hanada, Masaya; Inoue, Takashi; ; ; Ito, Takao; Kawai, Mikito; et al.
Fusion Technology 1992, Vol.1, p.564 - 568, 1993/00
no abstracts in English
Matsuoka, Mamoru; ; ; ; Kawai, Mikito; Komata, Masao; Kunieda, Shunsuke; Kuriyama, Masaaki; Mizuno, Makoto; Oga, Tokumichi; et al.
JAERI-M 90-086, 112 Pages, 1990/06
no abstracts in English
layers; ; ; ; Ouchi, Yutaka; Ohara, Yoshihiro; Kunieda, Shunsuke; Kuriyama, Masaaki; Shibanuma, Kiyoshi; Seki, Masahiro; et al.
JAERI-M 90-056, 19 Pages, 1990/03
no abstracts in English
gas layer as a sorbent i JT-60 NBI systemShibanuma, Kiyoshi; ; Dairaku, Masayuki; ; ; ; Kunieda, Shunsuke; Kuriyama, Masaaki; Matsuoka, Mamoru; ; et al.
Shinku, 33(3), p.308 - 310, 1990/00
no abstracts in English
