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Yamanaka, Kenjiro*; Nakanishi, Hideya*; Ozeki, Takahisa; Abe, Shunji*; Urushidani, Shigeo*; Yamamoto, Takashi*; Otsu, Hideo; Nakajima, Noriyoshi*
Fusion Engineering and Design, 112, p.1063 - 1067, 2016/11
Development of effective and fast data transfer system for the huge amount data between Europe and Japan is a critical issues for ITER Remote Experimentation Center (REC). To implement the system, effective data transfer methods and wide bandwidth international network are required. We have evaluated two data transfer methods: Packet Pacing and MMCFTP. By using Packet Pacing and 2.4 Gbps line, we achieved 2.2 Gbps data transfer from NIFS to IFERC. By using MMCFTP and 10 Gbps line, we achieved 2.5 bps data transfer from NIFS to Dubline, Ireland. Furthermore, by using MMCFTP and 100 Gbps line, we successfully achieved the stable transmission of 1 PB of data at approximately 84 Gbps, which is an order of the world's fastest transmission speed. This paper also describes the upgrade plan of SINET, which will be upgraded to the network based on 100 Gigabit Ethernet technology in April 2016.
Ozeki, Takahisa; Clement-Lorenzo, S.*; Nakajima, Noriyoshi*
Fusion Engineering and Design, 112, p.1055 - 1058, 2016/11
Ishizawa, Akihiro*; Maeyama, Shinya; Watanabe, Tomohiko*; Sugama, Hideo*; Nakajima, Noriyoshi*
Journal of Plasma Physics, 81(2), p.435810203_1 - 435810203_41, 2015/04
Times Cited Count：37 Percentile：84.34(Physics, Fluids & Plasmas)Matsuyama, Akinobu; Yagi, Masatoshi; Kagei, Yasuhiro; Nakajima, Noriyoshi*
Nuclear Fusion, 54(12), p.123007_1 - 123007_14, 2014/12
Times Cited Count：15 Percentile：54.79(Physics, Fluids & Plasmas)Ozeki, Takahisa; Clement, L. S.*; Nakajima, Noriyoshi*
Fusion Engineering and Design, 89(5), p.529 - 531, 2014/05
Times Cited Count：9 Percentile：52.93(Nuclear Science & Technology)no abstracts in English
Ishizawa, Akihiro*; Watanabe, Tomohiko*; Sugama, Hideo*; Maeyama, Shinya; Nakajima, Noriyoshi*
Physics of Plasmas, 21(5), p.055905_1 - 055905_10, 2014/05
Times Cited Count：21 Percentile：68.20(Physics, Fluids & Plasmas)Maeyama, Shinya; Ishizawa, Akihiro*; Watanabe, Tomohiko*; Nakajima, Noriyoshi*; Iio, Shunji*; Tsutsui, Hiroaki*
Computer Physics Communications, 184(11), p.2462 - 2473, 2013/11
Times Cited Count：21 Percentile：72.54(Computer Science, Interdisciplinary Applications)Ishizawa, Akihiro*; Maeyama, Shinya; Watanabe, Tomohiko*; Sugama, Hideo*; Nakajima, Noriyoshi*
Nuclear Fusion, 53(5), p.053007_1 - 053007_13, 2013/05
Times Cited Count：27 Percentile：73.54(Physics, Fluids & Plasmas)Ishizawa, Akihiro*; Maeyama, Shinya; Watanabe, Tomohiko*; Sugama, Hideo*; Nakajima, Noriyoshi*
Proceedings of 24th IAEA Fusion Energy Conference (FEC 2012) (CD-ROM), 8 Pages, 2012/10
Nishitani, Takeo; Garin, P.*; Sugimoto, Masayoshi; Nakajima, Noriyoshi*; Heidinger, R.*; Kimura, Haruyuki; Okano, Kunihiko*; Tobita, Kenji; Yamanishi, Toshihiko; Federici, G.*; et al.
Fusion Engineering and Design, 87(5-6), p.535 - 542, 2012/08
Progress of the fusion nuclear technology in the International Fusion Energy Research Center (IFERC) project and the International Fusion Materials Irradiation Facility/Engineering Validation and Engineering Design Activities (IFMIF/EVEDA) project is presented. In the IFERC project, R&D on the blanket materials are progressed. The EU-Japan joint design work on DEMO was initiated in 2011. A high performance computer with 1.3 PFlops is under installation at the Rokkasho BA site, and will be operated from January 2012. In the IFMIF/EVEDA project, the injector of the prototype accelerator was completed and the beam test is on going. The commissioning of the lithium test loop was completed in March 2011, and a lithium flow of 5 m/s was obtained.
Nishitani, Takeo; Tanigawa, Hiroyasu; Yamanishi, Toshihiko; Clement Lorenzo, S.*; Baluc, N.*; Hayashi, Kimio; Nakajima, Noriyoshi*; Kimura, Haruyuki; Sugimoto, Masayoshi; Heidinger, R.*; et al.
Fusion Science and Technology, 62(1), p.210 - 218, 2012/07
Times Cited Count：3 Percentile：23.15(Nuclear Science & Technology)Recent progress in the material related researches and the IFMIF/EVEDA project, which are carried out under the Broader Approach (BA) framework, is reported. In the International Fusion Energy Research Center (IFERC) project of BA, the R&D building was completed March 2010 at the Rokkasho BA site. R&Ds on reduced activation ferritic/ martensitic (RAFM) steels as structural material, SiC/SiC composites as a flow channel insert material and/or alternative structural material, advanced tritium breeders and neutron multipliers, and tritium technology relevant to the DEMO operational condition are progressed in Japan and EU. In the IFMIF/EVEDA project, the fabrication of the injector for the IFMIF prototype accelerator was completed at the CEA Saclay, and the first proton beam was obtained in May, 2011. The IFMIF lithium target test loop was completed in March 2011, and a lithium flow of 5 m/s was obtained.
Honda, Mitsuru; Fukuyama, Atsushi*; Nakajima, Noriyoshi*
Europhysics Conference Abstracts (Internet), 36F, p.P5.014_1 - P5.014_4, 2012/00
Honda, Mitsuru; Fukuyama, Atsushi*; Nakajima, Noriyoshi*
Journal of the Physical Society of Japan, 80(11), p.114502_1 - 114502_14, 2011/11
Times Cited Count：4 Percentile：32.36(Physics, Multidisciplinary)Honda, Mitsuru; Fukuyama, Atsushi*; Nakajima, Noriyoshi*
Plasma and Fusion Research (Internet), 6, p.1403008_1 - 1403008_11, 2011/05
A neoclassical transport model compatible with a system of two-fluid equations is proposed. The model is based on the moment approach and is capable of accurately reproducing important neoclassical properties through a simple expression of the neoclassical viscosity tensor, with the aid of the NCLASS module. Applying neoclassical transport theory in a fluid context, we obtain good agreement on first-order flows, poloidal flows, neoclassical resistivity, bootstrap current and particle flux from TASK/TX and NCLASS.
Wakasa, Arimitsu*; Fukuyama, Atsushi*; Murakami, Sadayoshi*; Miki, Masayuki*; Yokoyama, Masayuki*; Sato, Masahiko*; Toda, Shinichiro*; Funaba, Hisamichi*; Tanaka, Kenji*; Ida, Katsumi*; et al.
Proceedings of 23rd IAEA Fusion Energy Conference (FEC 2010) (CD-ROM), 8 Pages, 2011/03
Honda, Mitsuru; Fukuyama, Atsushi*; Nakajima, Noriyoshi*
Europhysics Conference Abstracts (Internet), 35G, p.P2.137_1 - P2.137_4, 2011/00
Fujita, Takaaki; Fukuda, Takeshi*; Fukuyama, Atsushi*; Sakamoto, Yoshiteru; Toi, Kazuo*; Ogawa, Yuichi*; Takenaga, Hidenobu; Takizuka, Tomonori; Yagi, Masatoshi*; Yamada, Hiroshi*; et al.
Purazuma, Kaku Yugo Gakkai-Shi, 84(1), p.70 - 72, 2008/01
no abstracts in English
Sasao, Mamiko*; Kusama, Yoshinori; Kawano, Yasunori; Kawahata, Kazuo*; Mase, Atsushi*; Sugie, Tatsuo; Fujita, Takaaki; Fukuda, Takeshi*; Fukuyama, Atsushi*; Sakamoto, Yoshiteru; et al.
Purazuma, Kaku Yugo Gakkai-Shi, 83(9), p.779 - 782, 2007/09
This is a report of highlights from 2007 spring meetings of seven Topical Groups (TG) of International Tokamak Physics Activity (ITPA). In each meeting, high priority issues in physics of International Thermonuclear Experimental Reactor (ITER) and other burning plasma experiments have been discussed and investigated. Twenty-seven scientists from Japan have participated in those meetings. Dates and places of the meetings are shown below. (1) Diagnostics TG: 26-30 March, Princeton (USA), (2) Transport Physics TG: 7-10 May, Lausanne (Switzerland), (3) Confinement Database and Modeling TG: 7-10 May, Lausanne (Switzerland), (4) Edge Pedestal Physics TG: 7-10 May, Garching (Germany) (5) Steady State Operation TG: 9-11 May, Daejeon (South Korea), (6)MHD TG: 21-24 May, San Diego (USA), (7) Scrape-off-layer and Divertor Physics TG: 7-10 May, Garching (Germany).
Isobe, Mitsutaka*; Toi, Kazuo*; Matsushita, Hiroyuki*; Goto, Kazuyuki*; Suzuki, Chihiro*; Nagaoka, Kenichi*; Nakajima, Noriyoshi*; Yamamoto, Satoshi*; Murakami, Sadayoshi*; Shimizu, Akihiro*; et al.
Nuclear Fusion, 46(10), p.S918 - S925, 2006/10
Times Cited Count：31 Percentile：69.62(Physics, Fluids & Plasmas)no abstracts in English
Asakura, Nobuyuki; Kato, Takako*; Nakano, Tomohide; Takamura, Shuichi*; Tanabe, Tetsuo*; Iio, Shunji*; Nakajima, Noriyoshi*; Ono, Yasushi*; Ozeki, Takahisa; Takechi, Manabu; et al.
Purazuma, Kaku Yugo Gakkai-Shi, 82(7), p.448 - 450, 2006/07
no abstracts in English
