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  • Naohiro Kasuya

Observation of nonlinear coupling between low frequency coherent modes and background turbulence in LMD-U

Kobayashi, T., Inagaki, S., Arakawa, H., Oldenbürger, S., Nagashima, M. S., Yamada, T., Sugita, S., Yagi, M., Kasuya, N., Fujisawa, A., Itoh, S. I. & Itoh, K., Dec 1 2011, In : Plasma and Fusion Research. 6, 1 SPECIAL ISSUE, 2403082.

Research output: Contribution to journalArticle

Observation of nonlinear coupling in azimuthal wave number space in a cylindrical magnetized plasma

Kobayashi, T., Inagaki, S., Arakawa, H., Oldenburger, S., Sasaki, M., Nagashima, Y., Yamada, T., Sugita, S., Yagi, M., Kasuya, N., Fujisawa, A., Itoh, S. I. & Itoh, K., Dec 1 2011, 38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts. p. 676-679 4 p. (38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts; vol. 35 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access

Observations of intermittent structures in the periphery of a cylindrical linear plasma in panta

Ohyama, N., Fujisawa, A., Inagaki, S., Nagashima, Y., Oldenbürger, S., Kobayashi, T., Kawashima, K., Tobimatsu, Y., Yamashita, T., Yamada, S., Arakawa, H., Yamada, T., Yagi, M., Kasuya, N., Sasaki, M., Itoh, S. I. & Itoh, K., Dec 1 2012, In : Plasma and Fusion Research. 7, 2012, 1201025.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Observations of radially elongated particle flux induced by streamer in a linear magnetized plasma

Kin, F., Fujisawa, A., Itoh, K., Kosuga, Y., Sasaki, M., Inagaki, S., Nagashima, Y., Yamada, T., Kasuya, N., Yamasaki, K., Hasamada, K., Zhang, B. Y., Kawachi, Y., Arakawa, H., Kobayashi, T. & Itoh, S. I., Apr 1 2019, In : Physics of Plasmas. 26, 4, 042306.

Research output: Contribution to journalArticle

3 Citations (Scopus)

On a nonlinear dispersion effect of geodesic acoustic modes

Sasaki, M., Itoh, K., Kasuya, N., Hallatschek, K. & Itoh, S. I., Jun 24 2013, In : Plasma and Fusion Research. 8, 2013, 1403010.

Research output: Contribution to journalArticle

4 Citations (Scopus)

On detection of a global mode structure in experiments by use of turbulence diagnostic simulator

Kasuya, N., Nishimura, S., Yagi, M., Itoh, K. & Itoh, S. I., 2011, In : Plasma and Fusion Research. 6, 2011, 1403002.

Research output: Contribution to journalArticle

3 Citations (Scopus)

On the Origin of Steep and Localized Radial Electric Field in the Transport Barrier at Plasma Edge

Itoh, K., Itoh, S. I., Kobayashi, T., Kamiya, K., Ido, T., Tokuzawa, T., Inagaki, S. & Kasuya, N., Aug 1 2016, In : Contributions to Plasma Physics. 56, 6-8, p. 522-527 6 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)
1 Citation (Scopus)

On the spatial structure of solitary radial electric field at the plasma edge in toroidal confinement devices

Itoh, K., Itoh, S. I., Kamiya, K. & Kasuya, N., Jul 1 2015, In : Plasma Physics and Controlled Fusion. 57, 7, 075008.

Research output: Contribution to journalArticle

16 Citations (Scopus)
6 Citations (Scopus)

On violation of local closure of transport relation in high-temperature magnetized plasmas

Kasuya, N., Sugita, S., Inagaki, S., Itoh, K., Yagi, M. & Itoh, S. I., Nov 1 2014, In : Physics of Plasmas. 21, 11, 110701.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Phenomenological classification of turbulence states in linear magnetized plasma PANTA

Kobayashi, T., Inagaki, S., Sasaki, M., Kosuga, Y., Arakawa, H., Kin, F., Yamada, T., Nagashima, Y., Kasuya, N., Fujisawa, A., Itoh, S. I. & Itoh, K., 2017, In : Plasma and Fusion Research. 12, 1401019.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Propagation direction of geodesic acoustic modes driven by drift wave turbulence

Sasaki, M., Itoh, K., Kobayashi, T., Kasuya, N., Fujisawa, A. & Itoh, S. I., Oct 3 2018, In : Nuclear Fusion. 58, 11, 112005.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Radially distributed instabilities and nonlinear process to generate pressure variation in a torus plasma

Kasuya, N. & Yagi, M., Jan 1 2017, In : Plasma and Fusion Research. 12, 1, 1303005.

Research output: Contribution to journalArticle

Roles of solitary eddy and splash in drift wave-zonal flow system in a linear magnetized plasma

Arakawa, H., Sasaki, M., Inagaki, S., Kosuga, Y., Kobayashi, T., Kasuya, N., Yamada, T., Nagashima, Y., Kin, F., Fujisawa, A., Itoh, K. & Itoh, S. I., May 1 2019, In : Physics of Plasmas. 26, 5, 052305.

Research output: Contribution to journalArticle

Open Access

Simulation research on competitive nature of plasma turbulence in linear devices

Kasuya, N. & Sasaki, M., Aug 1 2018, Front-runners' Symposium on Plasma Physics in Honor of Professors Kimitaka Itoh and Sanae-I. Itoh. Todo, Y. & Ida, K. (eds.). American Institute of Physics Inc., 020008. (AIP Conference Proceedings; vol. 1993).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Simulation study of hysteresis in the gradient-flux relation in toroidal plasma turbulence

Kasuya, N., Sugita, S., Shigeru, I., Itoh, K., Yagi, M. & Itoh, S., Apr 1 2015, In : Plasma Physics and Controlled Fusion. 57, 4, 044010.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Spatio-temporal dynamics of turbulence coupling with zonal flows

Sasaki, M., Kobayashi, T., Itoh, K., Kasuya, N., Kosuga, Y., Fujisawa, A., Inagaki, S. & Itoh, S. I., Jan 1 2018, 45th EPS Conference on Plasma Physics, EPS 2018. Berndt, J., Coda, S., Lapenta, G., Michaut, C., Weber, S. & Mantsinen, M. (eds.). European Physical Society (EPS), p. 449-452 4 p. (45th EPS Conference on Plasma Physics, EPS 2018; vol. 2018-July).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Spatio-temporal dynamics of turbulence trapped in geodesic acoustic modes

Sasaki, M., Kobayashi, T., Itoh, K., Kasuya, N., Kosuga, Y., Fujisawa, A. & Itoh, S. I., Jan 1 2018, In : Physics of Plasmas. 25, 1, 012316.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Statistical analyses of turbulent particle and momentum fluxes in a cylindrical magnetized plasma

Sasaki, M., Kasuya, N., Yagi, M., Itoh, K., Nagashima, Y., Inagaki, S. & Itoh, S. I., Jan 1 2013, In : Plasma and Fusion Research. 8, 2401113.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Streamer structures in experiment and modeling

Yamada, T., Sasaki, M., Kasuya, N., Nagashima, Y., Inagaki, S., Kobayashi, T., Yagi, M., Fujisawa, A., Itoh, S. I. & Itoh, K., Jun 24 2013, In : Plasma and Fusion Research. 8, SPL.ISS.1, 2401022.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Structure formation in parallel ion flow and density profiles by cross-ferroic turbulent transport in linear magnetized plasma

Kobayashi, T., Inagaki, S., Kosuga, Y., Sasaki, M., Nagashima, Y., Yamada, T., Arakawa, H., Kasuya, N., Fujisawa, A., Itoh, S. I. & Itoh, K., Oct 1 2016, In : Physics of Plasmas. 23, 10, 102311.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Study of non-linear coupling of fluctuations at long distance in LHD

Shigeru, I., Tokuzawa, T., Kobayashi, T., Itoh, S., Itoh, K., Ida, K., fujisawa, A., Kubo, S., Shimozuma, T., Tamura, N., Kasuya, N., Tsuchiya, H. & Nagayama, Y., Oct 1 2014, In : Nuclear Fusion. 54, 11, 114014.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Test of the telegraph equation for transport dynamics in plasma

Inagaki, S., Itoh, K., Itoh, S. I., Kosuga, Y., Lesur, M. & Kasuya, N., Jan 1 2015, In : Plasma and Fusion Research. 10, 2015, p. 1-2 2 p., 1203002.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Three-dimensional structure of the streamer in linear plasmas

Yamada, T., Inagaki, S., Sasaki, M., Nagashima, Y., Kin, F., Arakawa, H., Kobayashi, T., Yamasaki, K., Kasuya, N., Kosuga, Y., Fujisawa, A., Itoh, K. & Itoh, S. I., Jan 1 2018, In : journal of the physical society of japan. 87, 3, 034501.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Time evolution of power spectrum density in spontaneous transition in cylindrical magnetized plasma

Kobayashi, T., Inagaki, S., Oldenbürger, S., Kawashima, K., Ohyama, N., Tobimatsu, Y., Arakawa, H., Sasaki, M., Nagashima, Y., Yamada, T., Sugita, S., Yagi, M., Kasuya, N., Fujisawa, A., Itoh, S. I. & Itoh, K., Dec 1 2012, In : Plasma and Fusion Research. 7, SPL.ISS.1, 2401054.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Topological bifurcation of helical flows in magnetized plasmas with density gradient and parallel flow shear

Sasaki, M., Kasuya, N., Itoh, K., Toda, S., Yamada, T., Kosuga, Y., Nagashima, Y., Kobayashi, T., Arakawa, H., Yamasaki, K., Fujisawa, A., Inagaki, S. & Itoh, S. I., Nov 1 2017, In : Physics of Plasmas. 24, 11, 112103.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Toroidal momentum channeling of geodesic acoustic modes driven by fast ions

Sasaki, M., Kasuya, N., Itoh, K., Kosuga, Y., Lesur, M., Hallatschek, K. & Itoh, S. I., Mar 2017, In : Nuclear Fusion. 57, 3, 036025.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Turbulence simulation on zonal flow formations in the presence of parallel flows

Sasaki, M., Kasuya, N., Kosuga, Y., Kobayashi, T., Yamada, T., Arakawa, H., Inagaki, S. & Itoh, K., 2019, In : Plasma and Fusion Research. 14, 1161.

Research output: Contribution to journalArticle

Open Access

Turbulence simulation taking account of inhomogeneity of neutral density in linear devices

Kasuya, N., Abe, S., Sasaki, M., Inagaki, S., Kobayashi, T. & Yagi, M., Jan 1 2018, In : Physics of Plasmas. 25, 1, 012314.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Using dynamical mode decomposition to extract the limit cycle dynamics of modulated turbulence in a plasma simulation

Sasaki, M., Kawachi, Y., Dendy, R. O., Arakawa, H., Kasuya, N., Kin, F., Yamasaki, K. & Inagaki, S., Oct 11 2019, In : Plasma Physics and Controlled Fusion. 61, 11, 112001.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Zonal flows induced by symmetry breaking with existence of geodesic acoustic modes

Sasaki, M., Itoh, K., Itoh, S. I. & Kasuya, N., Feb 1 2012, In : Nuclear Fusion. 52, 2, 023009.

Research output: Contribution to journalArticle

7 Citations (Scopus)