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Journal Articles

Electromagnetic gyrokinetic simulation of turbulence in torus plasmas

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:29 Percentile:81.53(Physics, Fluids & Plasmas)

Journal Articles

Electromagnetic gyrokinetic turbulence in finite-beta helical plasmas

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:17 Percentile:63.31(Physics, Fluids & Plasmas)

Journal Articles

Numerical techniques for parallel dynamics in electromagnetic gyrokinetic Vlasov simulations

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:17 Percentile:69.57(Computer Science, Interdisciplinary Applications)

Journal Articles

Gyrokinetic turbulence simulations of high-beta tokamak and helical plasmas with full-kinetic and hybrid models

Ishizawa, Akihiro*; Maeyama, Shinya; Watanabe, Tomohiko*; Sugama, Hideo*; Nakajima, Noriyoshi*

Nuclear Fusion, 53(5), p.053007_1 - 053007_13, 2013/05

 Times Cited Count:24 Percentile:72.36(Physics, Fluids & Plasmas)

Journal Articles

Turbulent transport due to kinetic ballooning modes in high-beta toroidal 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

JAEA Reports

Examination of a distributed small reactor system with the social acceptability; The District heat supply small reactor system using deep underground cave

Nakajima, Nobuya; Takahashi, Hiroki; Kusunoki, Tsuyoshi; Mitomo, Nobuo

JAERI-Tech 2005-057, 54 Pages, 2005/09

JAERI-Tech-2005-057.pdf:4.27MB

Availability using small reactor sited in deep underground cave was examined as a district heat supply system.From the viewpoint of a social acceptability, the contact points with a distributed small reactor system were examined to resolve a social structure-subject of a big city through investigation of the city environmental issue and city calamity. In order to estimate the scale of the heat source of a district heat supply system, a virtual city model was set up about 100,000 populations. It became clear that the heat can be supplied by installing two reactors with thermal-power 100MWt (MR-100G) in caves. Moreover, it turns out that the system will also function effectively for more than 40 years. The economic efficiency of this system was compared with the natural-gas boiler, and we confirmed that the district heat supply system by the small reactor is excellent especially for the case of long-term system operation.

JAEA Reports

Study on the thermal output scale of a very small reactor for district-heat-and-cooling system

Takahashi, Hiroki; Nakajima, Nobuya; Kusunoki, Tsuyoshi

JAERI-Tech 2003-052, 59 Pages, 2003/06

JAERI-Tech-2003-052.pdf:5.95MB

The feasibility study of a distributed small reactor system has been performed in JAERI for the utilization of the heat source for public welfare, especially for air-conditioning and hot water supply, from the view point of use expansion of nuclear energy. In this report, the optimization of heat supply system including the set up and analysis of the model city are studied for the prediction of short and long term heat demand in the heat supply area. It is important process for understanding the whole system image to estimate the suitable heat source scale for the heat demand of the heat supply area, which is within a 5-km radius from heat supply source. From the analysis, it is clear that two or more set of the nuclear reactors based on 100 MW thermal power are suitable. Furthermore, it is indicated that the introduced reactor system can be utilized for more than 30 year and the heat reserve system is indispensable. This results show the feasibility of a small reactor system for district heat-and cooling supply.

Journal Articles

Design study of a district-heating reactor installed in the basement of building

Kusunoki, Tsuyoshi; Odano, Naoteru; Nakajima, Nobuya; Fukuhara, Yoshifumi*; Ochiai, Masaaki

Nihon Genshiryoku Gakkai-Shi, 42(11), p.1195 - 1203, 2000/11

 Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Research and development on very small reactor for heat supply

Nakajima, Nobuya; Kusunoki, Tsuyoshi; Odano, Naoteru; Ochiai, Masaaki

Dai-7-Kai Doryoku Enerugi Gijutsu Shimpojiumu Koen Rombunshu (00-11), p.225 - 228, 2000/00

no abstracts in English

Journal Articles

A Nuclear reactor installed in the basement of a building for heat supply

Kusunoki, Tsuyoshi; Odano, Naoteru; Yoritsune, Tsutomu; Fukuhara, Yoshifumi*; Nakajima, Nobuya; Ochiai, Masaaki

Proceedings of the 4th JSME-KSME Thermal Engineering Conference, p.1_61 - 1_66, 2000/00

no abstracts in English

JAEA Reports

Workshop summary report on the advanced utilization of plutonium in water cooled reactor; March 2nd, 1999, in Tokyo

Nakajima, Nobuya; Ochiai, Masaaki

JAERI-Conf 99-014, p.218 - 0, 1999/12

JAERI-Conf-99-014.pdf:11.65MB

no abstracts in English

JAEA Reports

The Study Meeting Report on the Undermoderated Spectrum Reactor; March4-5, 1998, JAERI, Tokai Japan

; Ochiai, Masaaki

JAERI-Conf 98-013, 279 Pages, 1998/09

JAERI-Conf-98-013.pdf:11.39MB

no abstracts in English

Journal Articles

Life management of nuclear power plants

Nihon Genshiryoku Sangyo Kaigi Doryokuro Nenryo, Zairyo Gaidobukku, p.329 - 349, 1998/00

no abstracts in English

Journal Articles

A Nondestructive measuring method for assessment of material degradation in aged Reactor pressure vessels

; Ara, Katsuyuki;

Proc. of 9th Int. Symp. on Reactor Dosimetry, 0, p.785 - 792, 1998/00

no abstracts in English

Journal Articles

New method of nondestructive measurement for assessment of material degradation of aged reactor pressure vessels

Ara, Katsuyuki; ;

J. Pressure Vessel Technol., 118(4), p.447 - 453, 1996/11

 Times Cited Count:14 Percentile:63.23(Engineering, Mechanical)

no abstracts in English

Journal Articles

Magnetic interrogation method for nondestructive measurement of radiation hardening of nuclear reactor pressure vessels

Ara, Katsuyuki; ; ; Sakasai, Kaoru

Proceedings of 8th International Conference on Pressure Vessel Technology (ICPVT-8), 1, p.183 - 189, 1996/00

no abstracts in English

Journal Articles

A Nondestructive measuring method for assessment of material degradation in nuclear reactor vessels; Correlation between magnetic properties and material properties of magnetic steels

; *; Ara, Katsuyuki; ; A.Gilanyi*; Uesaka, Mitsuru*; Miya, Kenzo*

MAG-95-138, 0, p.61 - 68, 1995/11

no abstracts in English

Journal Articles

Nondestructive measuring method for assessment of material degradation in nuclear reactor pressure vessels

Ara, Katsuyuki; ;

Dai-4-Kai MAGDA-Konfarensu in Tottori Koen Rombunshu; Denji Gensho Oyobi Denjiryoku Ni Kansuru Konfarensu, 0, p.79 - 82, 1995/00

no abstracts in English

Journal Articles

Investigation of a nondestructive method for measuring the overlay-clad thickness of reactor pressure vessels

Ara, Katsuyuki; Sakasai, Kaoru; Kishimoto, Maki; ;

Nihon Oyo Jiki Gakkai-Shi, 19, p.493 - 496, 1995/00

no abstracts in English

Journal Articles

Feasibility of an eddy current flaw test that detects disturbed magnetic flux

; Ara, Katsuyuki; ; *; *

Nihon Oyo Jiki Gakkai-Shi, 19, p.497 - 500, 1995/00

no abstracts in English

39 (Records 1-20 displayed on this page)