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23 results on '"Sudo, S."'

1. Overview of transport and MHD stability study: focusing on the impact of magnetic field topology in the Large Helical Device

Author

Ida, K., Nagaoka, K., Inagaki, S., Kasahara, H., EVANS5, Todd, Yoshinuma, M., Kamiya, K., Ohdachi, S., Osakabe, M., Kobayashi, M., Sudo, S., Itoh, K., Akiyama, T., Emoto, M., DINKLAGE, Andreas, Du, X., Fujii, K., Goto, M., GOTO, Takuya, HASUO, Masahiro, Hidalgo, C., Ichiguchi, K., Ishizawa, A., JAKUBOWSKI, Marcin, KAWAMURA, Gakushi, Kato, D., Morita, S., Mukai, Kiyofumi, Murakami, I., Murakami, S., Narushima, Y., Nunami, M., OHNO, Noriyasu, Pablant, N., Sakakibara, S., Seki, T., Shimozuma, T., SHOJI, M., Tanaka, K., Tokuzawa, T., Todo, Y., Wang, H., Collaborators, Ida, K., Nagaoka, K., Inagaki, S., Kasahara, H., EVANS5, Todd, Yoshinuma, M., Kamiya, K., Ohdachi, S., Osakabe, M., Kobayashi, M., Sudo, S., Itoh, K., Akiyama, T., Emoto, M., DINKLAGE, Andreas, Du, X., Fujii, K., Goto, M., GOTO, Takuya, HASUO, Masahiro, Hidalgo, C., Ichiguchi, K., Ishizawa, A., JAKUBOWSKI, Marcin, KAWAMURA, Gakushi, Kato, D., Morita, S., Mukai, Kiyofumi, Murakami, I., Murakami, S., Narushima, Y., Nunami, M., OHNO, Noriyasu, Pablant, N., Sakakibara, S., Seki, T., Shimozuma, T., SHOJI, M., Tanaka, K., Tokuzawa, T., Todo, Y., Wang, H., and Collaborators

Abstract

The progress in the understanding of the physics and the concurrent parameter extension in the large helical device since the last IAEA-FEC, in 2012 (Kaneko O et al 2013 Nucl. Fusion 53 095024), is reviewed. Plasma with high ion and electron temperatures (Ti(0) ~ Te(0) ~ 6 keV) with simultaneous ion and electron internal transport barriers is obtained by controlling recycling and heating deposition. A sign flip of the nondiffusive term of impurity/momentum transport (residual stress and convection flow) is observed, which is associated with the formation of a transport barrier. The impact of the topology of three-dimensional magnetic fields (stochastic magnetic fields and magnetic islands) on heat momentum, particle/impurity transport and magnetohydrodynamic stability is also discussed. In the steady state operation, a 48 min discharge with a line-averaged electron density of 1 × 1019 m−3 and with high electron and ion temperatures (Ti(0) ~ Te(0) ~ 2 keV), resulting in 3.36 GJ of input energy, is achieved., source:K. Ida et al 2015 Nucl. Fusion 55 104018, source:https://doi.org/10.1088/0029-5515/55/10/104018, identifier:0000-0002-0585-4561

Published
2021

2. Flow damping due to stochastization of the magnetic field

Author

Ida, K., Yoshinuma, M., Tsuchiya, H., Kobayashi, T., Suzuki, C., Yokoyama, M., Shimizu, A., Nagaoka, K., Inagaki, S., Itoh, K., Akiyama, T., Goto, M., Goto, T., Hasuo, M., Hidalgo, C., Ichiguchi, K., Ishizawa, A., Jakubowski, M., Kamiya, K., Kasahara, H., Kawamura, G., Pablant, N., Kato, D., Kobayashi, M., Morita, S., Mukai, K., Murakami, I., Murakami, S., Narushima, Y., Nunami, M., Ohdach, S., Ohno, N., Sakakibara, S., Osakabe, M., Seki, T., Shimozuma, T., Shoji, M., Sudo, S., Tanaka, K., Tokuzawa, T., Todo, Y., Wang, H., Fujita, T., Yamada, H., Takeiri, Y., Mutoh, T., Imagawa, S., Mito, T., Nagayama, Y., Watanabe, K. Y., Ashikawa, N., Chikaraishi, H., Ejiri, A., Hamaguchi, S., Furukawa, M., Igami, H., Isobe, M., Masuzaki, S., Morisaki, T., Motojima, G., Nagasaki, K., Nakano, H., Oya, Y., Yamamoto, T., Suzuki, Y., Sakamoto, R., Sakamoto, M., Sanpei, A., Takahashi, H., Tokitani, M., Ueda, Y., Yoshimura, Y., Yamamoto, S., Nishimura, K., Idei, H., Sugama, H., Isayama, A., Kitajima, S., Masamune, S., Shinohara, K., Bawankar, P. S., Bernard, E., Von Berkel, M., Funaba, H., Nishimura, S., Huang, X. L., Ii, T., Ido, T., Ikeda, K., Kamio, S., Kumazawa, R., Moon, C., Muto, S., Miyazawa, J., Ming, T., Ogawa, K., Nakamura, Y., Ozaki, T., Oishi, T., Ohno, M., Pandya, S., Seki, R., Sano, R., Saito, K., Sakaue, H., Emoto, M., Takemura, Y., Tsumori, K., Tamura, N., Tanaka, H., Toi, K., Wieland, B., Yamada, I., Yasuhara, R., Zhang, H., Kaneko, O., Evans, T., Komori, A., Dinklage, A., Du, X., Fujii, K., Ida, K., Yoshinuma, M., Tsuchiya, H., Kobayashi, T., Suzuki, C., Yokoyama, M., Shimizu, A., Nagaoka, K., Inagaki, S., Itoh, K., Akiyama, T., Goto, M., Goto, T., Hasuo, M., Hidalgo, C., Ichiguchi, K., Ishizawa, A., Jakubowski, M., Kamiya, K., Kasahara, H., Kawamura, G., Pablant, N., Kato, D., Kobayashi, M., Morita, S., Mukai, K., Murakami, I., Murakami, S., Narushima, Y., Nunami, M., Ohdach, S., Ohno, N., Sakakibara, S., Osakabe, M., Seki, T., Shimozuma, T., Shoji, M., Sudo, S., Tanaka, K., Tokuzawa, T., Todo, Y., Wang, H., Fujita, T., Yamada, H., Takeiri, Y., Mutoh, T., Imagawa, S., Mito, T., Nagayama, Y., Watanabe, K. Y., Ashikawa, N., Chikaraishi, H., Ejiri, A., Hamaguchi, S., Furukawa, M., Igami, H., Isobe, M., Masuzaki, S., Morisaki, T., Motojima, G., Nagasaki, K., Nakano, H., Oya, Y., Yamamoto, T., Suzuki, Y., Sakamoto, R., Sakamoto, M., Sanpei, A., Takahashi, H., Tokitani, M., Ueda, Y., Yoshimura, Y., Yamamoto, S., Nishimura, K., Idei, H., Sugama, H., Isayama, A., Kitajima, S., Masamune, S., Shinohara, K., Bawankar, P. S., Bernard, E., Von Berkel, M., Funaba, H., Nishimura, S., Huang, X. L., Ii, T., Ido, T., Ikeda, K., Kamio, S., Kumazawa, R., Moon, C., Muto, S., Miyazawa, J., Ming, T., Ogawa, K., Nakamura, Y., Ozaki, T., Oishi, T., Ohno, M., Pandya, S., Seki, R., Sano, R., Saito, K., Sakaue, H., Emoto, M., Takemura, Y., Tsumori, K., Tamura, N., Tanaka, H., Toi, K., Wieland, B., Yamada, I., Yasuhara, R., Zhang, H., Kaneko, O., Evans, T., Komori, A., Dinklage, A., Du, X., and Fujii, K.

Abstract

The driving and damping mechanism of plasma flow is an important issue because flow shear has a significant impact on turbulence in a plasma, which determines the transport in the magnetized plasma. Here we report clear evidence of the flow damping due to stochastization of the magnetic field. Abrupt damping of the toroidal flow associated with a transition from a nested magnetic flux surface to a stochastic magnetic field is observed when the magnetic shear at the rational surface decreases to 0.5 in the large helical device. This flow damping and resulting profile flattening are much stronger than expected from the Rechester-Rosenbluth model. The toroidal flow shear shows a linear decay, while the ion temperature gradient shows an exponential decay. This observation suggests that the flow damping is due to the change in the non-diffusive term of momentum transport.

Published
2015

3. Cosmic ray tests of a 4.6 m-long test drift chamber for JLC

Author

栗原, 良将, 山口, 晃久, 須藤, 訓, 阿部, 利徳, 藤井, 恵介, 石原, 信弘, Khalatyan, N., 松井, 隆幸, 仁藤, 修, 小濱, 太郎, 奥野, 英城, 杉山, 晃, 高橋, 香, 渡部, 隆史, 吉田, 哲也, Kurihara, Y., Yamaguchi, A., Sudo, S., Abe, T., Fujii, K., Ishihara, N., Matsui, T., Nitoh, O., Ohama, T., Okuno, H., Sugiyama, A., Takahashi, K., Watanabe, T., Yoshida, Tetsuya, 栗原, 良将, 山口, 晃久, 須藤, 訓, 阿部, 利徳, 藤井, 恵介, 石原, 信弘, Khalatyan, N., 松井, 隆幸, 仁藤, 修, 小濱, 太郎, 奥野, 英城, 杉山, 晃, 高橋, 香, 渡部, 隆史, 吉田, 哲也, Kurihara, Y., Yamaguchi, A., Sudo, S., Abe, T., Fujii, K., Ishihara, N., Matsui, T., Nitoh, O., Ohama, T., Okuno, H., Sugiyama, A., Takahashi, K., Watanabe, T., and Yoshida, Tetsuya

Abstract

著者人数: 15名, Accepted: 1999-09-04

Published
2015

4. Mutant p53 gain-of-function induces epithelial–mesenchymal transition through modulation of the miR-130b–ZEB1 axis

Author

Dong, Peixin, Karaayvaz, M., Jia, N., Kaneuchi, M., Hamada, J., Watari, H., Sudo, S., Ju, J., 1000070153963, Sakuragi, N., Dong, Peixin, Karaayvaz, M., Jia, N., Kaneuchi, M., Hamada, J., Watari, H., Sudo, S., Ju, J., 1000070153963, and Sakuragi, N.

Abstract

The tumor suppressor gene p53 has been implicated in the regulation of epithelial–mesenchymal transition (EMT) and tumor metastasis by regulating microRNA (miRNA) expression. Here, we report that mutant p53 exerts oncogenic functions and promotes EMT in endometrial cancer (EC) by directly binding to the promoter of miR-130b (a negative regulator of ZEB1) and inhibiting its transcription. We transduced p53 mutants into p53-null EC cells, profiled the miRNA expression by miRNA microarray and identified miR-130b as a potential target of mutant p53. Ectopic expression of p53 mutants repressed the expression of miR-130b and triggered ZEB1-dependent EMT and cancer cell invasion. Loss of an endogenous p53 mutation increased the expression of miR-130b, which resulted in reduced ZEB1 expression and attenuation of the EMT phenotype. Furthermore, re-expression of miR-130b suppressed mutant p53-induced EMT and ZEB1 expression. Importantly, the expression of miR-130 was significantly reduced in EC tissues, and patients with higher expression levels of miR-130b survived longer. These data provide a novel understanding of the roles of p53 gain-of-function mutations in accelerating tumor progression and metastasis through modulation of the miR-130b–ZEB1 axis.

Published
2013

5. Mutant p53 gain-of-function induces epithelial–mesenchymal transition through modulation of the miR-130b–ZEB1 axis

Author

Dong, Peixin, Karaayvaz, M., Jia, N., Kaneuchi, M., Hamada, J., Watari, H., Sudo, S., Ju, J., Sakuragi, N., Dong, Peixin, Karaayvaz, M., Jia, N., Kaneuchi, M., Hamada, J., Watari, H., Sudo, S., Ju, J., and Sakuragi, N.

Abstract

The tumor suppressor gene p53 has been implicated in the regulation of epithelial–mesenchymal transition (EMT) and tumor metastasis by regulating microRNA (miRNA) expression. Here, we report that mutant p53 exerts oncogenic functions and promotes EMT in endometrial cancer (EC) by directly binding to the promoter of miR-130b (a negative regulator of ZEB1) and inhibiting its transcription. We transduced p53 mutants into p53-null EC cells, profiled the miRNA expression by miRNA microarray and identified miR-130b as a potential target of mutant p53. Ectopic expression of p53 mutants repressed the expression of miR-130b and triggered ZEB1-dependent EMT and cancer cell invasion. Loss of an endogenous p53 mutation increased the expression of miR-130b, which resulted in reduced ZEB1 expression and attenuation of the EMT phenotype. Furthermore, re-expression of miR-130b suppressed mutant p53-induced EMT and ZEB1 expression. Importantly, the expression of miR-130 was significantly reduced in EC tissues, and patients with higher expression levels of miR-130b survived longer. These data provide a novel understanding of the roles of p53 gain-of-function mutations in accelerating tumor progression and metastasis through modulation of the miR-130b–ZEB1 axis.

Published
2013

6. Development of net-current free heliotron plasmas in the Large Helical Device

Author

Komori, A., Yamada, H., Sakakibara, S., Kaneko, O., Kawahata, K., Mutoh, T., Ohyabu, N., Imagawa, S., Ida, K., Nagayama, Y., Shimozuma, T., Watanabe, K. Y., Mito, T., Kobayashi, M., Nagaoka, K., Sakamoto, R., Yoshida, N., Ohdachi, S., Ashikawa, N., Feng, Y., Fukuda, T., Igami, H., Inagaki, S., Kasahara, H., Kubo, S., Kumazawa, R., Mitarai, O., Murakami, S., Nakamura, Yuji, Nishiura, M., Hino, T., Masuzaki, S., Tanaka, K., Toi, K., Weller, A., Yoshinuma, M., Narushima, Y., Ohno, N., Okamura, T., Tamura, N., Saito, K., Seki, T., Sudo, S., Tanaka, H., Tokuzawa, T., Yanagi, N., Yokoyama, M., Yoshimura, Y., Akiyama, T., Chikaraishi, H., Chowdhuri, M., Emoto, M., Ezumi, N., Funaba, H., Garcia, L., Goncharov, P., Goto, M., Ichiguchi, K., Ichimura, M., Idei, H., Ido, T., Iio, S., Ikeda, K., Irie, M., Isayama, A., Ishigooka, T., Isobe, M., Ito, T., Itoh, K., Iwamae, A., Hamaguchi, S., Hamajima, T., Kitajima, S., Kado, S., Kato, D., Kato, T., Kobayashi, S., Kondo, K., Masamune, S., Matsumoto, Y., Matsunami, N., Minami, T., Michael, C., Miura, H., Miyazawa, J., Mizuguchi, N., Morisaki, T., Morita, S., Motojima, G., Murakami, I., Muto, S., Nagasaki, K., Nakajima, N., Nakamura, Y., Nakanishi, H., Nakano, H., Narihara, K., Nishimura, A., Nishimura, H., Nishimura, K., Nishimura, S., Nishino, N., Notake, T., Obana, T., Ogawa, K., Oka, Y., Ohishi, T., Okada, H., Okuno, K., Ono, K., Osakabe, M., Osako, T., Ozaki, T., Peterson, B. J., Sakaue, H., Sasao, M., Satake, S., Sato, K., Sato, M., Shimizu, A., Shiratani, M., Shoji, M., Sugama, H., Suzuki, C., Suzuki, Y., Takahata, K., Takahashi, H., Takase, Y., Takeiri, Y., Takenaga, H., Toda, S., Todo, Y., Tokitani, M., Tsuchiya, H., Tsumori, K., Urano, H., Veshchev, E., Watanabe, F., Watanabe, T., Watanabe, T. H., Yamada, I., Yamada, S., Yamagishi, O., Yamaguchi, S., Yoshimura, S., Yoshinaga, T., Motojima, O., Komori, A., Yamada, H., Sakakibara, S., Kaneko, O., Kawahata, K., Mutoh, T., Ohyabu, N., Imagawa, S., Ida, K., Nagayama, Y., Shimozuma, T., Watanabe, K. Y., Mito, T., Kobayashi, M., Nagaoka, K., Sakamoto, R., Yoshida, N., Ohdachi, S., Ashikawa, N., Feng, Y., Fukuda, T., Igami, H., Inagaki, S., Kasahara, H., Kubo, S., Kumazawa, R., Mitarai, O., Murakami, S., Nakamura, Yuji, Nishiura, M., Hino, T., Masuzaki, S., Tanaka, K., Toi, K., Weller, A., Yoshinuma, M., Narushima, Y., Ohno, N., Okamura, T., Tamura, N., Saito, K., Seki, T., Sudo, S., Tanaka, H., Tokuzawa, T., Yanagi, N., Yokoyama, M., Yoshimura, Y., Akiyama, T., Chikaraishi, H., Chowdhuri, M., Emoto, M., Ezumi, N., Funaba, H., Garcia, L., Goncharov, P., Goto, M., Ichiguchi, K., Ichimura, M., Idei, H., Ido, T., Iio, S., Ikeda, K., Irie, M., Isayama, A., Ishigooka, T., Isobe, M., Ito, T., Itoh, K., Iwamae, A., Hamaguchi, S., Hamajima, T., Kitajima, S., Kado, S., Kato, D., Kato, T., Kobayashi, S., Kondo, K., Masamune, S., Matsumoto, Y., Matsunami, N., Minami, T., Michael, C., Miura, H., Miyazawa, J., Mizuguchi, N., Morisaki, T., Morita, S., Motojima, G., Murakami, I., Muto, S., Nagasaki, K., Nakajima, N., Nakamura, Y., Nakanishi, H., Nakano, H., Narihara, K., Nishimura, A., Nishimura, H., Nishimura, K., Nishimura, S., Nishino, N., Notake, T., Obana, T., Ogawa, K., Oka, Y., Ohishi, T., Okada, H., Okuno, K., Ono, K., Osakabe, M., Osako, T., Ozaki, T., Peterson, B. J., Sakaue, H., Sasao, M., Satake, S., Sato, K., Sato, M., Shimizu, A., Shiratani, M., Shoji, M., Sugama, H., Suzuki, C., Suzuki, Y., Takahata, K., Takahashi, H., Takase, Y., Takeiri, Y., Takenaga, H., Toda, S., Todo, Y., Tokitani, M., Tsuchiya, H., Tsumori, K., Urano, H., Veshchev, E., Watanabe, F., Watanabe, T., Watanabe, T. H., Yamada, I., Yamada, S., Yamagishi, O., Yamaguchi, S., Yoshimura, S., Yoshinaga, T., and Motojima, O.

Published
2009

7. Development of net-current free heliotron plasmas in the Large Helical Device

Author

20198245, 20237506, 50169116, Komori, A., Yamada, H., Sakakibara, S., Kaneko, O., Kawahata, K., Mutoh, T., Ohyabu, N., Imagawa, S., Ida, K., Nagayama, Y., Shimozuma, T., Watanabe, K. Y., Mito, T., Kobayashi, M., Nagaoka, K., Sakamoto, R., Yoshida, N., Ohdachi, S., Ashikawa, N., Feng, Y., Fukuda, T., Igami, H., Inagaki, S., Kasahara, H., Kubo, S., Kumazawa, R., Mitarai, O., Murakami, S., Nakamura, Yuji, Nishiura, M., Hino, T., Masuzaki, S., Tanaka, K., Toi, K., Weller, A., Yoshinuma, M., Narushima, Y., Ohno, N., Okamura, T., Tamura, N., Saito, K., Seki, T., Sudo, S., Tanaka, H., Tokuzawa, T., Yanagi, N., Yokoyama, M., Yoshimura, Y., Akiyama, T., Chikaraishi, H., Chowdhuri, M., Emoto, M., Ezumi, N., Funaba, H., Garcia, L., Goncharov, P., Goto, M., Ichiguchi, K., Ichimura, M., Idei, H., Ido, T., Iio, S., Ikeda, K., Irie, M., Isayama, A., Ishigooka, T., Isobe, M., Ito, T., Itoh, K., Iwamae, A., Hamaguchi, S., Hamajima, T., Kitajima, S., Kado, S., Kato, D., Kato, T., Kobayashi, S., Kondo, K., Masamune, S., Matsumoto, Y., Matsunami, N., Minami, T., Michael, C., Miura, H., Miyazawa, J., Mizuguchi, N., Morisaki, T., Morita, S., Motojima, G., Murakami, I., Muto, S., Nagasaki, K., Nakajima, N., Nakamura, Y., Nakanishi, H., Nakano, H., Narihara, K., Nishimura, A., Nishimura, H., Nishimura, K., Nishimura, S., Nishino, N., Notake, T., Obana, T., Ogawa, K., Oka, Y., Ohishi, T., Okada, H., Okuno, K., Ono, K., Osakabe, M., Osako, T., Ozaki, T., Peterson, B. J., Sakaue, H., Sasao, M., Satake, S., Sato, K., Sato, M., Shimizu, A., Shiratani, M., Shoji, M., Sugama, H., Suzuki, C., Suzuki, Y., Takahata, K., Takahashi, H., Takase, Y., Takeiri, Y., Takenaga, H., Toda, S., Todo, Y., Tokitani, M., Tsuchiya, H., Tsumori, K., Urano, H., Veshchev, E., Watanabe, F., Watanabe, T., Watanabe, T. H., Yamada, I., Yamada, S., Yamagishi, O., Yamaguchi, S., Yoshimura, S., Yoshinaga, T., Motojima, O., 20198245, 20237506, 50169116, Komori, A., Yamada, H., Sakakibara, S., Kaneko, O., Kawahata, K., Mutoh, T., Ohyabu, N., Imagawa, S., Ida, K., Nagayama, Y., Shimozuma, T., Watanabe, K. Y., Mito, T., Kobayashi, M., Nagaoka, K., Sakamoto, R., Yoshida, N., Ohdachi, S., Ashikawa, N., Feng, Y., Fukuda, T., Igami, H., Inagaki, S., Kasahara, H., Kubo, S., Kumazawa, R., Mitarai, O., Murakami, S., Nakamura, Yuji, Nishiura, M., Hino, T., Masuzaki, S., Tanaka, K., Toi, K., Weller, A., Yoshinuma, M., Narushima, Y., Ohno, N., Okamura, T., Tamura, N., Saito, K., Seki, T., Sudo, S., Tanaka, H., Tokuzawa, T., Yanagi, N., Yokoyama, M., Yoshimura, Y., Akiyama, T., Chikaraishi, H., Chowdhuri, M., Emoto, M., Ezumi, N., Funaba, H., Garcia, L., Goncharov, P., Goto, M., Ichiguchi, K., Ichimura, M., Idei, H., Ido, T., Iio, S., Ikeda, K., Irie, M., Isayama, A., Ishigooka, T., Isobe, M., Ito, T., Itoh, K., Iwamae, A., Hamaguchi, S., Hamajima, T., Kitajima, S., Kado, S., Kato, D., Kato, T., Kobayashi, S., Kondo, K., Masamune, S., Matsumoto, Y., Matsunami, N., Minami, T., Michael, C., Miura, H., Miyazawa, J., Mizuguchi, N., Morisaki, T., Morita, S., Motojima, G., Murakami, I., Muto, S., Nagasaki, K., Nakajima, N., Nakamura, Y., Nakanishi, H., Nakano, H., Narihara, K., Nishimura, A., Nishimura, H., Nishimura, K., Nishimura, S., Nishino, N., Notake, T., Obana, T., Ogawa, K., Oka, Y., Ohishi, T., Okada, H., Okuno, K., Ono, K., Osakabe, M., Osako, T., Ozaki, T., Peterson, B. J., Sakaue, H., Sasao, M., Satake, S., Sato, K., Sato, M., Shimizu, A., Shiratani, M., Shoji, M., Sugama, H., Suzuki, C., Suzuki, Y., Takahata, K., Takahashi, H., Takase, Y., Takeiri, Y., Takenaga, H., Toda, S., Todo, Y., Tokitani, M., Tsuchiya, H., Tsumori, K., Urano, H., Veshchev, E., Watanabe, F., Watanabe, T., Watanabe, T. H., Yamada, I., Yamada, S., Yamagishi, O., Yamaguchi, S., Yoshimura, S., Yoshinaga, T., and Motojima, O.

Published
2009

8. 核融合分野におけるCOE としての機関リポジトリの構築を目指して -核融合科学研究所リポジトリの特徴と目標

Author

難波, 忠清 (核融合科学研究所), 力石, 浩孝 (核融合科学研究所), 河本, 善子 (核融合科学研究所), 太田, 雅子 (核融合科学研究所), 橋本, 香苗 (核融合科学研究所), 居田, 克巳 (核融合科学研究所), 中西, 秀哉 (核融合科学研究所), 三戸, 利行 (核融合科学研究所), 朝倉, 大和 (核融合科学研究所), 高畑, 一也 (核融合科学研究所), 松岡, 啓介 (核融合科学研究所), 須藤, 滋 (核融合科学研究所), 本島, 修 (核融合科学研究所), Namba, C (National Institute for Fusion Science, Japan), Chikaraishi, H (National Institute for Fusion Science, Japan), Kohmoto, Y (National Institute for Fusion Science, Japan), Ohta, M (National Institute for Fusion Science, Japan), Hashimoto, K (National Institute for Fusion Science, Japan), Ida, K (National Institute for Fusion Science, Japan), Nakanishi, H (National Institute for Fusion Science, Japan), Mito, T (National Institute for Fusion Science, Japan), Asakura, Y (National Institute for Fusion Science, Japan), Takahata, K (National Institute for Fusion Science, Japan), Matsuoka, K (National Institute for Fusion Science, Japan), Sudo, S (National Institute for Fusion Science, Japan), Motojima, O (National Institute for Fusion Science, Japan), 難波, 忠清 (核融合科学研究所), 力石, 浩孝 (核融合科学研究所), 河本, 善子 (核融合科学研究所), 太田, 雅子 (核融合科学研究所), 橋本, 香苗 (核融合科学研究所), 居田, 克巳 (核融合科学研究所), 中西, 秀哉 (核融合科学研究所), 三戸, 利行 (核融合科学研究所), 朝倉, 大和 (核融合科学研究所), 高畑, 一也 (核融合科学研究所), 松岡, 啓介 (核融合科学研究所), 須藤, 滋 (核融合科学研究所), 本島, 修 (核融合科学研究所), Namba, C (National Institute for Fusion Science, Japan), Chikaraishi, H (National Institute for Fusion Science, Japan), Kohmoto, Y (National Institute for Fusion Science, Japan), Ohta, M (National Institute for Fusion Science, Japan), Hashimoto, K (National Institute for Fusion Science, Japan), Ida, K (National Institute for Fusion Science, Japan), Nakanishi, H (National Institute for Fusion Science, Japan), Mito, T (National Institute for Fusion Science, Japan), Asakura, Y (National Institute for Fusion Science, Japan), Takahata, K (National Institute for Fusion Science, Japan), Matsuoka, K (National Institute for Fusion Science, Japan), Sudo, S (National Institute for Fusion Science, Japan), and Motojima, O (National Institute for Fusion Science, Japan)

Abstract

DRFIC2008 Poster Session No.9, DRFIC2008 ポスターセッション資料 9番

Published
2008

9. 核融合分野におけるCOE としての機関リポジトリの構築を目指して -核融合科学研究所リポジトリの特徴と目標

Author

難波, 忠清 (核融合科学研究所), 力石, 浩孝 (核融合科学研究所), 河本, 善子 (核融合科学研究所), 太田, 雅子 (核融合科学研究所), 橋本, 香苗 (核融合科学研究所), 居田, 克巳 (核融合科学研究所), 中西, 秀哉 (核融合科学研究所), 三戸, 利行 (核融合科学研究所), 朝倉, 大和 (核融合科学研究所), 高畑, 一也 (核融合科学研究所), 松岡, 啓介 (核融合科学研究所), 須藤, 滋 (核融合科学研究所), 本島, 修 (核融合科学研究所), Namba, C (National Institute for Fusion Science, Japan), Chikaraishi, H (National Institute for Fusion Science, Japan), Kohmoto, Y (National Institute for Fusion Science, Japan), Ohta, M (National Institute for Fusion Science, Japan), Hashimoto, K (National Institute for Fusion Science, Japan), Ida, K (National Institute for Fusion Science, Japan), Nakanishi, H (National Institute for Fusion Science, Japan), Mito, T (National Institute for Fusion Science, Japan), Asakura, Y (National Institute for Fusion Science, Japan), Takahata, K (National Institute for Fusion Science, Japan), Matsuoka, K (National Institute for Fusion Science, Japan), Sudo, S (National Institute for Fusion Science, Japan), Motojima, O (National Institute for Fusion Science, Japan), 難波, 忠清 (核融合科学研究所), 力石, 浩孝 (核融合科学研究所), 河本, 善子 (核融合科学研究所), 太田, 雅子 (核融合科学研究所), 橋本, 香苗 (核融合科学研究所), 居田, 克巳 (核融合科学研究所), 中西, 秀哉 (核融合科学研究所), 三戸, 利行 (核融合科学研究所), 朝倉, 大和 (核融合科学研究所), 高畑, 一也 (核融合科学研究所), 松岡, 啓介 (核融合科学研究所), 須藤, 滋 (核融合科学研究所), 本島, 修 (核融合科学研究所), Namba, C (National Institute for Fusion Science, Japan), Chikaraishi, H (National Institute for Fusion Science, Japan), Kohmoto, Y (National Institute for Fusion Science, Japan), Ohta, M (National Institute for Fusion Science, Japan), Hashimoto, K (National Institute for Fusion Science, Japan), Ida, K (National Institute for Fusion Science, Japan), Nakanishi, H (National Institute for Fusion Science, Japan), Mito, T (National Institute for Fusion Science, Japan), Asakura, Y (National Institute for Fusion Science, Japan), Takahata, K (National Institute for Fusion Science, Japan), Matsuoka, K (National Institute for Fusion Science, Japan), Sudo, S (National Institute for Fusion Science, Japan), and Motojima, O (National Institute for Fusion Science, Japan)

Abstract

DRFIC2008 Poster Session Recap one-minute oral presentation No.9, DRFIC2008 ポスターセッションまとめ 口頭プレゼンテーション資料 9番

Published
2008

10. Core Electron Temperature Rise Due to Ar Gas-puff in EC-heated LHD Plasmas

Author

Tamura, N., Inagaki, S., Ida, K., Tanaka, K., Michael, C., Tokuzawa, T., Goto, M., Morita, S., Shimozuma, T., Kubo, S., Igami, H., Fukuda, T., Itoh, K., Sudo, S., Nagayama, Y., Kawahata, K., Tamura, N., Inagaki, S., Ida, K., Tanaka, K., Michael, C., Tokuzawa, T., Goto, M., Morita, S., Shimozuma, T., Kubo, S., Igami, H., Fukuda, T., Itoh, K., Sudo, S., Nagayama, Y., and Kawahata, K.

Published
2007

11. Characterization of novel splice variants of LGR7 and LGR8 reveals that receptor signaling is mediated by their unique low density lipoprotein class A modules

Author

Scott, DJ, Layfield, S, Yan, Y, Sudo, S, Hsueh, AJW, Tregear, GW, Bathgate, RAD, Scott, DJ, Layfield, S, Yan, Y, Sudo, S, Hsueh, AJW, Tregear, GW, and Bathgate, RAD

Abstract

The relaxin and insulin-like peptide 3 receptors, LGR7 and LGR8, respectively, are unique members of the leucine-rich repeat-containing G-protein-coupled receptor (LGR) family, because they possess an N-terminal motif with homology to the low density lipoprotein class A (LDLa) modules. By characterizing several LGR7 and LGR8 splice variants, we have revealed that the LDLa module directs ligand-activated cAMP signaling. The LGR8-short variant encodes an LGR8 receptor lacking the LDLa module, whereas LGR7-truncate, LGR7-truncate-2, and LGR7-truncate-3 all encode truncated secreted proteins retaining the LGR7 LDLa module. LGR8-short and an engineered LGR7 variant missing its LDLa module, LGR7-short, bound to their respective ligands with high affinity but lost their ability to signal via stimulation of intracellular cAMP accumulation. Conversely, secreted LGR7-truncate protein with the LDLa module was able to block relaxin-induced LGR7 cAMP signaling and did so without compromising the ability of LGR7 to bind to relaxin or be expressed on the cell membrane. Although the LDLa module of LGR7 was N-glycosylated at position Asn-14, an LGR7 N14Q mutant retained relaxin binding affinity and cAMP signaling, implying that glycosylation is not essential for optimal LDLa function. Using real-time PCR, the expression of mouse LGR7-truncate was detected to be high in, and specific to, the uterus of pregnant mice. The differential expression and evolutionary conservation of LGR7-truncate further suggests that it may also play an important role in vivo. This study highlights the essential role of the LDLa module in LGR7 and LGR8 function and introduces a novel model of GPCR regulation.

Published
2006

12. Overview of progress in LHD experiments

Author

Komori, A, Morisaki, T, Mutoh, T, Sakakibara, S, Takeiri, Y, Kumazawa, R, Kubo, S, Ida, K, Morita, S, Narihara, K, Shimozuma, T, Tanaka, K, Watanabe, KY, Yamada, H, Yoshinuma, M, Akiyama, T, Ashikawa, N, Emoto, M, Funaba, H, Goto, M, Ido, T, Ikeda, K, Inagaki, S, Isobe, M, Igami, H, Itoh, K, Kaneko, O, Kawahata, K, Kobuchi, T, Masuzaki, S, Matsuoka, K, Minami, T, Miyazawa, J, Muto, S, Nagayama, Y, Nakamura, Y, Nakanishi, H, Narushima, Y, Nishimura, K, Nishiura, M, Nishizawa, A, Noda, N, Ohdachi, S, Oka, Y, Osakabe, M, Ohyabu, N, Ozaki, T, Peterson, BJ, Sagara, A, Saito, K, Sakamoto, R, Sato, K, Sato, M, Seki, T, Shoji, M, Sudo, S, Tamura, N, Toi, K, Tokuzawa, T, Tsumori, K, Uda, T, Watari, T, Yamada, I, Yokoyama, M, Yoshimura, Y, Motojima, O, Beidler, CD, Fujita, T, Isayama, A, Sakamoto, Y, Takenaga, H, Goncharov, P, Ishii, K, Sakamoto, M, Murakami, S, Notake, T, Takeuchi, N, Okajima, S, Sasao, M, Komori, A, Morisaki, T, Mutoh, T, Sakakibara, S, Takeiri, Y, Kumazawa, R, Kubo, S, Ida, K, Morita, S, Narihara, K, Shimozuma, T, Tanaka, K, Watanabe, KY, Yamada, H, Yoshinuma, M, Akiyama, T, Ashikawa, N, Emoto, M, Funaba, H, Goto, M, Ido, T, Ikeda, K, Inagaki, S, Isobe, M, Igami, H, Itoh, K, Kaneko, O, Kawahata, K, Kobuchi, T, Masuzaki, S, Matsuoka, K, Minami, T, Miyazawa, J, Muto, S, Nagayama, Y, Nakamura, Y, Nakanishi, H, Narushima, Y, Nishimura, K, Nishiura, M, Nishizawa, A, Noda, N, Ohdachi, S, Oka, Y, Osakabe, M, Ohyabu, N, Ozaki, T, Peterson, BJ, Sagara, A, Saito, K, Sakamoto, R, Sato, K, Sato, M, Seki, T, Shoji, M, Sudo, S, Tamura, N, Toi, K, Tokuzawa, T, Tsumori, K, Uda, T, Watari, T, Yamada, I, Yokoyama, M, Yoshimura, Y, Motojima, O, Beidler, CD, Fujita, T, Isayama, A, Sakamoto, Y, Takenaga, H, Goncharov, P, Ishii, K, Sakamoto, M, Murakami, S, Notake, T, Takeuchi, N, Okajima, S, and Sasao, M

Published
2006

13. Recent progress in large helical device experiments

Author

Komori, A, Morisaki, T, Mutoh, T, Sakakibara, S, Takeiri, Y, Kumazawa, R, Kubo, S, Ida, K, Morita, S, Narihara, K, Shimozuma, T, Tanaka, K, Watanabe, KY, Yamada, H, Yoshinuma, M, Akiyama, T, Ashikawa, N, Emoto, M, Funaba, H, Goto, M, Ido, T, Ikeda, K, Inagaki, S, Isobe, M, Igami, H, Itoh, K, Kaneko, O, Kawahata, K, Kobuchi, T, Masuzaki, S, Matsuoka, K, Minami, T, Miyazawa, J, Muto, S, Nagayama, Y, Nakamura, Y, Nakanishi, H, Narushima, Y, Nishimura, K, Nishiura, M, Nishizawa, A, Noda, N, Ohdachi, S, Oka, Y, Osakabe, M, Ohyabu, N, Ozaki, T, Peterson, BJ, Sagara, A, Saito, K, Sakamoto, R, Sato, K, Seki, T, Shoji, M, Sudo, S, Tamura, N, Toi, K, Tokuzawa, T, Tsumori, K, Uda, T, Watari, T, Yamada, I, Yokoyama, M, Yoshimura, Y, Motojima, O, Beidler, CD, Fujita, T, Isayama, A, Sakamoto, Y, Takenaga, H, Goncharov, P, Ishii, K, Sakamoto, M, Kawazome, H, Torii, Y, Murakami, S, Notake, T, Takeuchi, N, Okajima, S, Sasao, M, Komori, A, Morisaki, T, Mutoh, T, Sakakibara, S, Takeiri, Y, Kumazawa, R, Kubo, S, Ida, K, Morita, S, Narihara, K, Shimozuma, T, Tanaka, K, Watanabe, KY, Yamada, H, Yoshinuma, M, Akiyama, T, Ashikawa, N, Emoto, M, Funaba, H, Goto, M, Ido, T, Ikeda, K, Inagaki, S, Isobe, M, Igami, H, Itoh, K, Kaneko, O, Kawahata, K, Kobuchi, T, Masuzaki, S, Matsuoka, K, Minami, T, Miyazawa, J, Muto, S, Nagayama, Y, Nakamura, Y, Nakanishi, H, Narushima, Y, Nishimura, K, Nishiura, M, Nishizawa, A, Noda, N, Ohdachi, S, Oka, Y, Osakabe, M, Ohyabu, N, Ozaki, T, Peterson, BJ, Sagara, A, Saito, K, Sakamoto, R, Sato, K, Seki, T, Shoji, M, Sudo, S, Tamura, N, Toi, K, Tokuzawa, T, Tsumori, K, Uda, T, Watari, T, Yamada, I, Yokoyama, M, Yoshimura, Y, Motojima, O, Beidler, CD, Fujita, T, Isayama, A, Sakamoto, Y, Takenaga, H, Goncharov, P, Ishii, K, Sakamoto, M, Kawazome, H, Torii, Y, Murakami, S, Notake, T, Takeuchi, N, Okajima, S, and Sasao, M

Published
2006

14. Recent progress in large helical device experiments

Author

40249967, Komori, A, Morisaki, T, Mutoh, T, Sakakibara, S, Takeiri, Y, Kumazawa, R, Kubo, S, Ida, K, Morita, S, Narihara, K, Shimozuma, T, Tanaka, K, Watanabe, KY, Yamada, H, Yoshinuma, M, Akiyama, T, Ashikawa, N, Emoto, M, Funaba, H, Goto, M, Ido, T, Ikeda, K, Inagaki, S, Isobe, M, Igami, H, Itoh, K, Kaneko, O, Kawahata, K, Kobuchi, T, Masuzaki, S, Matsuoka, K, Minami, T, Miyazawa, J, Muto, S, Nagayama, Y, Nakamura, Y, Nakanishi, H, Narushima, Y, Nishimura, K, Nishiura, M, Nishizawa, A, Noda, N, Ohdachi, S, Oka, Y, Osakabe, M, Ohyabu, N, Ozaki, T, Peterson, BJ, Sagara, A, Saito, K, Sakamoto, R, Sato, K, Seki, T, Shoji, M, Sudo, S, Tamura, N, Toi, K, Tokuzawa, T, Tsumori, K, Uda, T, Watari, T, Yamada, I, Yokoyama, M, Yoshimura, Y, Motojima, O, Beidler, CD, Fujita, T, Isayama, A, Sakamoto, Y, Takenaga, H, Goncharov, P, Ishii, K, Sakamoto, M, Kawazome, H, Torii, Y, Murakami, S, Notake, T, Takeuchi, N, Okajima, S, Sasao, M, 40249967, Komori, A, Morisaki, T, Mutoh, T, Sakakibara, S, Takeiri, Y, Kumazawa, R, Kubo, S, Ida, K, Morita, S, Narihara, K, Shimozuma, T, Tanaka, K, Watanabe, KY, Yamada, H, Yoshinuma, M, Akiyama, T, Ashikawa, N, Emoto, M, Funaba, H, Goto, M, Ido, T, Ikeda, K, Inagaki, S, Isobe, M, Igami, H, Itoh, K, Kaneko, O, Kawahata, K, Kobuchi, T, Masuzaki, S, Matsuoka, K, Minami, T, Miyazawa, J, Muto, S, Nagayama, Y, Nakamura, Y, Nakanishi, H, Narushima, Y, Nishimura, K, Nishiura, M, Nishizawa, A, Noda, N, Ohdachi, S, Oka, Y, Osakabe, M, Ohyabu, N, Ozaki, T, Peterson, BJ, Sagara, A, Saito, K, Sakamoto, R, Sato, K, Seki, T, Shoji, M, Sudo, S, Tamura, N, Toi, K, Tokuzawa, T, Tsumori, K, Uda, T, Watari, T, Yamada, I, Yokoyama, M, Yoshimura, Y, Motojima, O, Beidler, CD, Fujita, T, Isayama, A, Sakamoto, Y, Takenaga, H, Goncharov, P, Ishii, K, Sakamoto, M, Kawazome, H, Torii, Y, Murakami, S, Notake, T, Takeuchi, N, Okajima, S, and Sasao, M

Published
2006

15. Overview of progress in LHD experiments

Author

40249967, Komori, A, Morisaki, T, Mutoh, T, Sakakibara, S, Takeiri, Y, Kumazawa, R, Kubo, S, Ida, K, Morita, S, Narihara, K, Shimozuma, T, Tanaka, K, Watanabe, KY, Yamada, H, Yoshinuma, M, Akiyama, T, Ashikawa, N, Emoto, M, Funaba, H, Goto, M, Ido, T, Ikeda, K, Inagaki, S, Isobe, M, Igami, H, Itoh, K, Kaneko, O, Kawahata, K, Kobuchi, T, Masuzaki, S, Matsuoka, K, Minami, T, Miyazawa, J, Muto, S, Nagayama, Y, Nakamura, Y, Nakanishi, H, Narushima, Y, Nishimura, K, Nishiura, M, Nishizawa, A, Noda, N, Ohdachi, S, Oka, Y, Osakabe, M, Ohyabu, N, Ozaki, T, Peterson, BJ, Sagara, A, Saito, K, Sakamoto, R, Sato, K, Sato, M, Seki, T, Shoji, M, Sudo, S, Tamura, N, Toi, K, Tokuzawa, T, Tsumori, K, Uda, T, Watari, T, Yamada, I, Yokoyama, M, Yoshimura, Y, Motojima, O, Beidler, CD, Fujita, T, Isayama, A, Sakamoto, Y, Takenaga, H, Goncharov, P, Ishii, K, Sakamoto, M, Murakami, S, Notake, T, Takeuchi, N, Okajima, S, Sasao, M, 40249967, Komori, A, Morisaki, T, Mutoh, T, Sakakibara, S, Takeiri, Y, Kumazawa, R, Kubo, S, Ida, K, Morita, S, Narihara, K, Shimozuma, T, Tanaka, K, Watanabe, KY, Yamada, H, Yoshinuma, M, Akiyama, T, Ashikawa, N, Emoto, M, Funaba, H, Goto, M, Ido, T, Ikeda, K, Inagaki, S, Isobe, M, Igami, H, Itoh, K, Kaneko, O, Kawahata, K, Kobuchi, T, Masuzaki, S, Matsuoka, K, Minami, T, Miyazawa, J, Muto, S, Nagayama, Y, Nakamura, Y, Nakanishi, H, Narushima, Y, Nishimura, K, Nishiura, M, Nishizawa, A, Noda, N, Ohdachi, S, Oka, Y, Osakabe, M, Ohyabu, N, Ozaki, T, Peterson, BJ, Sagara, A, Saito, K, Sakamoto, R, Sato, K, Sato, M, Seki, T, Shoji, M, Sudo, S, Tamura, N, Toi, K, Tokuzawa, T, Tsumori, K, Uda, T, Watari, T, Yamada, I, Yokoyama, M, Yoshimura, Y, Motojima, O, Beidler, CD, Fujita, T, Isayama, A, Sakamoto, Y, Takenaga, H, Goncharov, P, Ishii, K, Sakamoto, M, Murakami, S, Notake, T, Takeuchi, N, Okajima, S, and Sasao, M

Published
2006

16. Characterisation of the Japanese metallogenic belts.

Author

Ogasawara M., Interim IAGOD conference Vladivostok, Russia 01-Sep-0420-Sep-04, Sudo S., Ogasawara M., Interim IAGOD conference Vladivostok, Russia 01-Sep-0420-Sep-04, and Sudo S.

Abstract

As part of an international collaborative project, 13 metallogenic belts have been defined on the Japanese islands. Their time-space relationships show that specific tectonic events were related to their genesis, while the estimated total gold resources of each belt further indicate the characteristics of the ore-forming processes. Pre-accretionary belts are the Hitachi, north Kitakami, Kamuikotan and Hidaka belts in the northeast and the Mino-Tamba-Chugoku and Sambagawa-Chicibu and Shimanto belts in the southwest. They mainly contain stratiform Cu and Mn deposits and podiform Cr. Post-accretionary belts are of two kinds: those formed in a continental arc setting are Kitakami in the northeast and the Inner Zone of SW Japan, while those formed in an island arc setting are NE Hokkaido, NE Japan, and in the southwest Hokuriku-Sanin, Outer Zone of SW Japan and Kyushu. An estimated 1 100 tons of gold have been obtained over 1 250 years of mining; 70% of gold resources were hosted by the youngest three belts, all related to island arcs: Kyushu c.430 t, NE Japan c.250 t and NE Hokkaido c.105 t., As part of an international collaborative project, 13 metallogenic belts have been defined on the Japanese islands. Their time-space relationships show that specific tectonic events were related to their genesis, while the estimated total gold resources of each belt further indicate the characteristics of the ore-forming processes. Pre-accretionary belts are the Hitachi, north Kitakami, Kamuikotan and Hidaka belts in the northeast and the Mino-Tamba-Chugoku and Sambagawa-Chicibu and Shimanto belts in the southwest. They mainly contain stratiform Cu and Mn deposits and podiform Cr. Post-accretionary belts are of two kinds: those formed in a continental arc setting are Kitakami in the northeast and the Inner Zone of SW Japan, while those formed in an island arc setting are NE Hokkaido, NE Japan, and in the southwest Hokuriku-Sanin, Outer Zone of SW Japan and Kyushu. An estimated 1 100 tons of gold have been obtained over 1 250 years of mining; 70% of gold resources were hosted by the youngest three belts, all related to island arcs: Kyushu c.430 t, NE Japan c.250 t and NE Hokkaido c.105 t.

Published
2004

17. ICRF Heating and High Energy Particle Production in the Large Helical Device

Author

Mutoh, T., Kumazawa, R., Seki, T., Saito, K., Watari, T., Torii, Y., Takeuchi, N., Yamamoto, T., Osakabe, M., Sasao, M., Murakami, S., Ozaki, T., Saida, T., Zhao, Y. P., Okada, H., Takase, Y., Fukuyama, A., Ashikawa, N., Emoto, M., Funaba, H., Goncharov, P., Goto, M., Ida, K., Idei, H., Ikeda, K., Inagaki, S., Isobe, M., Kaneko, O., Kawahata, K., Khlopenkov, K., Kobuchi, T., Komori, A., Kostrioukov, A., Kubo, S., Liang, Y., Masuzaki, S., Minami, T., Mito, T., Miyazawa, J., Morisaki, T., Morita, S., Muto, S., Nagayama, Y., Nakamura, Y., Nakanishi, H., Narihara, K., Narushima, Y., Nishimura, K., Noda, N., Notake, T., Ohdachi, S., Ohtake, I., Ohyabu, N., Oka, Y., Peterson, B. J., Sagara, A., Sakakibara, S., Sakamoto, R., Sato, K., Sato, M., Shimozuma, T., Shoji, M., Suzuki, H., Takeiri, Y., Tamura, N., Tanaka, K., Toi, K., Tokuzawa, T., Tsumori, K., Watanabe, K. Y., Xu, Y., Yamada, H., Yamada, I., Yamamoto, S., Yokoyama, M., Yoshimura, Y., Yoshinuma, M., Itoh, K., Ohkubo, K., Satow, T., Sudo, S., Uda, T., Yamazaki, K., Matsuoka, K., Motojima, O., Hamada, Y., Fujiwara, M., Mutoh, T., Kumazawa, R., Seki, T., Saito, K., Watari, T., Torii, Y., Takeuchi, N., Yamamoto, T., Osakabe, M., Sasao, M., Murakami, S., Ozaki, T., Saida, T., Zhao, Y. P., Okada, H., Takase, Y., Fukuyama, A., Ashikawa, N., Emoto, M., Funaba, H., Goncharov, P., Goto, M., Ida, K., Idei, H., Ikeda, K., Inagaki, S., Isobe, M., Kaneko, O., Kawahata, K., Khlopenkov, K., Kobuchi, T., Komori, A., Kostrioukov, A., Kubo, S., Liang, Y., Masuzaki, S., Minami, T., Mito, T., Miyazawa, J., Morisaki, T., Morita, S., Muto, S., Nagayama, Y., Nakamura, Y., Nakanishi, H., Narihara, K., Narushima, Y., Nishimura, K., Noda, N., Notake, T., Ohdachi, S., Ohtake, I., Ohyabu, N., Oka, Y., Peterson, B. J., Sagara, A., Sakakibara, S., Sakamoto, R., Sato, K., Sato, M., Shimozuma, T., Shoji, M., Suzuki, H., Takeiri, Y., Tamura, N., Tanaka, K., Toi, K., Tokuzawa, T., Tsumori, K., Watanabe, K. Y., Xu, Y., Yamada, H., Yamada, I., Yamamoto, S., Yokoyama, M., Yoshimura, Y., Yoshinuma, M., Itoh, K., Ohkubo, K., Satow, T., Sudo, S., Uda, T., Yamazaki, K., Matsuoka, K., Motojima, O., Hamada, Y., and Fujiwara, M.

Abstract

Significant progress has been made with lon-Cyclotron Range-of-Frequencies (lCRF) heating in the Large Helical Device (LHD). This is mainly due to better confinement of the helically trapped particles, and less accumulation of impurities in the region of the plasma core. During the past two years, ICRF heating power has been increased from 1.35 MW to 2.7 MW. Various wave-mode tests were carried out using minority-ion heating, second-harmonic heating, slow-wave heating, and high-density fast-wave heating at the fundamental cyclotron frequency. This fundamental heating mode extended the plasma-density range of effective ICRF heating to a value of 1 x 10^20 m^-3. This was the first successful result of this geating mode in large fusion devices. Using the minority-ion mode gave the best performance, and the stored energy reached 240 kJ using ICRF alone. This was obtained for the inward-shifted magnetic axis configuration. The improvement associated with the axis shift was common to both bulk plasma and highly accelerated particles. For the minority-ion mode, high-energy ions up to 500 keV were observed by concentrating the heating power near the plasma axis. The confinement properties of high-energy particles were studied for different magnetic axis configurations using the power-modulation technique. It confirmed that the confimement of high-energy particles with the inward-shifted configuration was better than that with the normal configuration. The impurity problem was not serious when the plasma boundary was sufficiently far from the chamber wal1. By reducing the impurity problem, it was possible to sustain the plasma for more than two minutes using ICRF alone.

Published
2002

18. Overview of LHD Experiments

Author

Fujiwara, M., Kawahata, K., Ohyabu, N., Kaneko, O., Komori, A., Yamada, H., Ashikawa, N., Baylor, L. R., Combs, S. K., deVries, P. C., Emoto, M., Masuzaki, S., Minami, T., Miyajima, J., Morisaki, T., Morita, S., Murakami, S., Muto, S., Nagayama, Y., Nakajima, N., Nakamura, Y., Sagara, A., Nakanishi, H., Narihara, K., Nishimura, K., Noda, N., Notake, T., Ohdachi, S., Oka, Y., Okajima, S., Okamoto, M., Osakabe, M., Saito, K., Ozaki, T., Pavlichenko, R. O., Peterson, B. J., Sakakibara, S., Sakamoto, R., Sanuki, H., Sasao, H., Sasao, M., Sato, K., Sato, M., Seki, T., Watanabe, T., Shimozuma, T., Shoji, M., Sugama, H., Suzuki, H., Takechi, M., Takeiri, Y., Tamura, N., Tanaka, K., Toi, K., Tokuzawa, T., Wateri, T., Torii, Y., Tsumori, K., Watanabe, K. Y., Yamada, I., Yamaguchi, S., Yamamoto, S., Yokoyama, M., Yoshida, N., Yoshimura, Y., Zhao, Y. P., Akiyama, R., Kitagawa, S., Haba, K., Iima, M., Kodaira, J., Takita, T., Tsuzuki, T., Yamauchi, K., Yonezu, H., Chikaraishi, H., Hamaguchi, S., Imagawa, S., Kubota, Y., Inoue, N., Iwamoto, A., Mutoh, T., Maekawa, R., Mito, T., Murai, K., Nishimura, A., Takahata, K., Tamura, H., Yamada, S., Ejiri, A., Yanagi, N., Itoh, K., Matsuoka, K., Ohkubo, K., Ohtake, I., Satoh, S., Satow, T., Sudo, S., Tanahashi, S., Yamazaki, K., Fisher, P. W., Hamada, Y., Motojima, O., Funaba, H., Goto, M., Hartmann, D., Ida, K., Idei, H., Iio, S., Ikeda, K., Inagaki, S., Isobe, M., Kado, S., Khlopenkov, K., Kobuchi, T., Krasilnikov, A. V., Kubo, S., Kumazawa, R., Leuterer, F., Liang, Y., Lyon, J. F., Fujiwara, M., Kawahata, K., Ohyabu, N., Kaneko, O., Komori, A., Yamada, H., Ashikawa, N., Baylor, L. R., Combs, S. K., deVries, P. C., Emoto, M., Masuzaki, S., Minami, T., Miyajima, J., Morisaki, T., Morita, S., Murakami, S., Muto, S., Nagayama, Y., Nakajima, N., Nakamura, Y., Sagara, A., Nakanishi, H., Narihara, K., Nishimura, K., Noda, N., Notake, T., Ohdachi, S., Oka, Y., Okajima, S., Okamoto, M., Osakabe, M., Saito, K., Ozaki, T., Pavlichenko, R. O., Peterson, B. J., Sakakibara, S., Sakamoto, R., Sanuki, H., Sasao, H., Sasao, M., Sato, K., Sato, M., Seki, T., Watanabe, T., Shimozuma, T., Shoji, M., Sugama, H., Suzuki, H., Takechi, M., Takeiri, Y., Tamura, N., Tanaka, K., Toi, K., Tokuzawa, T., Wateri, T., Torii, Y., Tsumori, K., Watanabe, K. Y., Yamada, I., Yamaguchi, S., Yamamoto, S., Yokoyama, M., Yoshida, N., Yoshimura, Y., Zhao, Y. P., Akiyama, R., Kitagawa, S., Haba, K., Iima, M., Kodaira, J., Takita, T., Tsuzuki, T., Yamauchi, K., Yonezu, H., Chikaraishi, H., Hamaguchi, S., Imagawa, S., Kubota, Y., Inoue, N., Iwamoto, A., Mutoh, T., Maekawa, R., Mito, T., Murai, K., Nishimura, A., Takahata, K., Tamura, H., Yamada, S., Ejiri, A., Yanagi, N., Itoh, K., Matsuoka, K., Ohkubo, K., Ohtake, I., Satoh, S., Satow, T., Sudo, S., Tanahashi, S., Yamazaki, K., Fisher, P. W., Hamada, Y., Motojima, O., Funaba, H., Goto, M., Hartmann, D., Ida, K., Idei, H., Iio, S., Ikeda, K., Inagaki, S., Isobe, M., Kado, S., Khlopenkov, K., Kobuchi, T., Krasilnikov, A. V., Kubo, S., Kumazawa, R., Leuterer, F., Liang, Y., and Lyon, J. F.

Abstract

Experimental studies on the Large Helical Device during the last two years are reviewed. After the start of LHD experiment in 1998, the magnetic field has been gradually raised up to 2.89 T. The heating power has been increased, up to 4.2 MW for NBI, 1.3 MW for ICRF, and 0.9 MW for ECRH, Upgrading the key hardware systems has led to the extension of the plasma parameters to (i) higher T_e [ T_e(0) = 4.4 keV at = 5.3 x 10^18 m^-3 and P_abs = 1.8 MW ], (ii) higher confinement [tau_E = 0.3 s, T_e(0) = 1.1 keV at = 6.5 x 10^19 m^-3 and P_abs = 2.0 MW] and (iii) higher stored energy W_p^dia = 880 kJ. High performance plasmas have been realized in the inward shifted magnetic axis configuration (R=3 .6m) where the helical symmetry is recovered and the particle orbit properties are improved by trade off of MHD stability properties due to the appearance of the magnetic hill. The energy confinement was systematically higher than that predicted by the Intemational Stellerator Scaling 95 up to a factor of I .6 and was comparable with ELMy H-mode confinement capability in tokamaks. This confinement improvement is attributed to the configuration control (the inward shift of magnetic axis) and to the formation of the high edge temperature. The achieved average beta value reached 2.4 % at B=1.3 T, the highest beta value ever obtained in helical devices, and so far no degradation of confinement by MHD phenomenon is observed. The inward shifted configuration has also led to successful ICRF minority ion heating. ICRF power up to 1.3 MW was reliably injected into the plasma without significant impurity contamination and a plasma with a stored energy of 200 kJ was sustained for 5 sec by ICRF alone. As another important result long pulse discharges of more than I minute were successfully achieved separately with NBI heating of 0.5 MW and with ICRF heating of 0.85 MW.

Published
2000

19. Recognition of a new permittivity function for glycerol by the use of the eigen-coordinates method

Author

Nigmatullin R., Abdul-Gader Jafar M., Shinyashiki N., Sudo S., Yagihara S., Nigmatullin R., Abdul-Gader Jafar M., Shinyashiki N., Sudo S., and Yagihara S.

Abstract

Measurements of real and imaginary parts of the relative complex permittivity of glycerol were carried out in the frequency range 1 mHz-1 MHz at different temperatures between 188 and 263 K. The permittivity data have been analyzed thoroughly by a new data curve-fitting approach that involves the so-called eigen-coordinates method in conjunction with a separation procedure and the inverse permittivity formulas. A new single permittivity function, based on the so-called recap element picture for a self-similar (fractal) structure, has been recognized to describe well such data over the entire frequency range studied. The recognized dielectric function enabled us to infer an electrical equivalent-circuit network for the glycerol sample studied that involves a series combination of two recap elements, reflecting the existence of two different dielectric relaxation processes in glycerol. The temperature dependence of the relaxation times τ1(T) and τ2(T) entering into the identified permittivity function was found to obey nearly an Arrhenius behaviour with activation energies E1 ≈ 114 kJ/mol and E2 ≈ 94 kJ/mol. The recognized permittivity function can be justified by presuming that the processes represented by the recap elements characterized by the parameters (ν1, τ1, E1) and (ν2, τ2, E2) are linked to 'donor-like' and 'acceptor-like' charges formed from the infinite hydroxyl hydrogen bonds. © 2002 Elsevier Science B.V. All rights reserved.

20. Recognition of a new permittivity function for glycerol by the use of the eigen-coordinates method

Author

Nigmatullin R., Abdul-Gader Jafar M., Shinyashiki N., Sudo S., Yagihara S., Nigmatullin R., Abdul-Gader Jafar M., Shinyashiki N., Sudo S., and Yagihara S.

Abstract

Measurements of real and imaginary parts of the relative complex permittivity of glycerol were carried out in the frequency range 1 mHz-1 MHz at different temperatures between 188 and 263 K. The permittivity data have been analyzed thoroughly by a new data curve-fitting approach that involves the so-called eigen-coordinates method in conjunction with a separation procedure and the inverse permittivity formulas. A new single permittivity function, based on the so-called recap element picture for a self-similar (fractal) structure, has been recognized to describe well such data over the entire frequency range studied. The recognized dielectric function enabled us to infer an electrical equivalent-circuit network for the glycerol sample studied that involves a series combination of two recap elements, reflecting the existence of two different dielectric relaxation processes in glycerol. The temperature dependence of the relaxation times τ1(T) and τ2(T) entering into the identified permittivity function was found to obey nearly an Arrhenius behaviour with activation energies E1 ≈ 114 kJ/mol and E2 ≈ 94 kJ/mol. The recognized permittivity function can be justified by presuming that the processes represented by the recap elements characterized by the parameters (ν1, τ1, E1) and (ν2, τ2, E2) are linked to 'donor-like' and 'acceptor-like' charges formed from the infinite hydroxyl hydrogen bonds. © 2002 Elsevier Science B.V. All rights reserved.

21. Industrial mineral resources in Japan.

Author

Hirano H., Sudo S., Hirano H., and Sudo S.

Abstract

A review is presented of the distribution, production and demand for industrial minerals in Japan. In 1990 the mine output value of industrial minerals exceeded US, A review is presented of the distribution, production and demand for industrial minerals in Japan. In 1990 the mine output value of industrial minerals exceeded US

22. Monitoring and prediction calculation of rock displacements and stress changes induced by pillar extraction - predictions and monitorings for rock development design.

Author

Mizuta Y., Kato H., Sano O., Sudo S., Mizuta Y., Kato H., Sano O., and Sudo S.

Abstract

The sinkage of roof rock above the iron deposit, induced by pillar extractions, and the stress changes were measured. The induced roof displacements were predicted by numerical analysis using the boundary element method and were found to agree reasonably well with the measured roof sinkages., The sinkage of roof rock above the iron deposit, induced by pillar extractions, and the stress changes were measured. The induced roof displacements were predicted by numerical analysis using the boundary element method and were found to agree reasonably well with the measured roof sinkages.

23. Niobium mineralisation of Catalao I carbonatite complex, Goias, Brazil.

Author

Hirano H., Kamitani M., Sato T., Sudo S., Hirano H., Kamitani M., Sato T., and Sudo S.

Abstract

The niobium ore deposit in the Catalao I complex is described, and then compared with the deposit at Araxa, in an attempt to clarify the geological features which have developed the exceptionally high-grade Nb ores in the central part of Brazil. It is concluded that two Nb-concentration processes, igneous and weathering, have been successfully progressed in both the Catalao I and the Araxa complexes., The niobium ore deposit in the Catalao I complex is described, and then compared with the deposit at Araxa, in an attempt to clarify the geological features which have developed the exceptionally high-grade Nb ores in the central part of Brazil. It is concluded that two Nb-concentration processes, igneous and weathering, have been successfully progressed in both the Catalao I and the Araxa complexes.

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