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Journal Articles

Two-step Mott transition in Ni(S,Se)$$_2$$; $$mu$$SR studies and charge-spin percolation model

Sheng, Q.*; Kaneko, Tatsuya*; Yamakawa, Kohtaro*; Guguchia, Z.*; Gong, Z.*; Zhao, G.*; Dai, G.*; Jin, C.*; Guo, S.*; Fu, L.*; et al.

Physical Review Research (Internet), 4(3), p.033172_1 - 033172_14, 2022/09

Journal Articles

Establishment of reasonable 2-D model to investigate heat transfer and flow characteristics by using scale model of vessel cooling system for HTTR

Takada, Shoji; Ngarayana, I. W.*; Nakatsuru, Yukihiro*; Terada, Atsuhiko; Murakami, Kenta*; Sawa, Kazuhiro*

Mechanical Engineering Journal (Internet), 7(3), p.19-00536_1 - 19-00536_12, 2020/06

In this study reasonable 2D model was established by using FLUENT for start-up of analysis and evaluation of heat transfer flow characteristics in 1/6 scale model of VCS for HTTR. By setting up pressure vessel temperature around 200$$^{circ}$$C about relatively high ratio of heat transfer via natural convection in total heat removal around 20-30%, which is useful for code to experiment benchmark in the aspect to confirm accuracy to predict temperature distribution of components which is heated up by natural convection flow. The numerical results of upper head of pressure vessel by the $$kappa$$-$$omega$$-SST intermittency transition model, which can adequately reproduce the separation, re-adhesion and transition, reproduced the test results including temperature distribution well in contrast to those by the $$kappa$$-$$varepsilon$$ model in both cases that helium gas is evacuated or filled in the pressure vessel. It was emerged that any local hot spot did not appear on the top of upper head of pressure vessel where natural convection flow of air is separated in both cases. In addition, the plume of high temperature helium gas generated by the heating of heater was well mixed in the upper head and uniformly heated the inner surface of upper head without generating hot spots.

Journal Articles

Replica symmetry breaking in a quantum spin system with random fields

Physics Letters A, 230(1-2), p.117 - 120, 1997/06

 Times Cited Count:1 Percentile:19.00(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Investigation of centrifugal pump performance under two-phase flow conditions

G.R.Noghrehkar*; Kawaji, Masahiro*; A.M.C.Chan*; Nakamura, Hideo; Kukita, Yutaka

J. Fluids Eng., 117, p.1 - 9, 1995/03

no abstracts in English

Journal Articles

Ordered phase for the infinite-range Potts-glass model

Physical Review B, 51(2), p.962 - 971, 1995/01

 Times Cited Count:5 Percentile:35.95(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Low-spin level structure of $$^{126}$$Ba investigated by $$gamma$$-$$gamma$$ angular correlation measurement

Asai, Masato*; ; Osa, Akihiko; Koizumi, Mitsuo; Sekine, Toshiaki; ; Yamamoto, Hiroshi*; Kawade, Kiyoshi*

ENAM 95: Int. Conf. on Exotic Nuclei and Atomic Masses, 0, p.539 - 540, 1995/00

no abstracts in English

Journal Articles

Elimination of numerical pressure spikes induced by two-fluid model

Abe, Yutaka; ; Kamo, Hideki*; Murao, Yoshio

Journal of Nuclear Science and Technology, 30(12), p.1214 - 1224, 1993/12

 Times Cited Count:4 Percentile:38.10(Nuclear Science & Technology)

no abstracts in English

Journal Articles

First-order transitions in an infinite-range spin-glass model

Journal of Physics; Condensed Matter, 4, p.2615 - 2622, 1992/00

 Times Cited Count:11 Percentile:56.43(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Improvement of numerical treatment of convection term in TRAC-PF1 code at transition from single phase flow to two phase flow

Abe, Yutaka; ; Onuki, Akira; Murao, Yoshio; Kamo, Hideki*

Proc. of the Int. Conf. on Multiphase Flows 91-TSUKUBA,Vol. 2, p.373 - 376, 1991/00

no abstracts in English

JAEA Reports

A Model of L-H transition

JAERI-M 89-217, 31 Pages, 1989/12

JAERI-M-89-217.pdf:0.69MB

no abstracts in English

Journal Articles

The beta decay of $$^{4}$$$$^{8}$$Mn; Gamow-Teller quenching in fp-shell nuclei

; J.Cerny*; R.Kirchner*; O.Klepper*; V.T.Koslowsky*; A.Plochocki*; E.Roeckl*; D.Schardt*; B.Sherrill*

Nuclear Physics A, 467, p.93 - 114, 1987/00

 Times Cited Count:32 Percentile:82.97(Physics, Nuclear)

no abstracts in English

Journal Articles

Slug to annular flow transition during boiloff in a rod bundle under high-pressure conditions

Osakabe, Masahiro; Koizumi, Yasuo; ; ; Tasaka, Kanji

Nucl.Eng.Des., 98, p.69 - 76, 1986/00

 Times Cited Count:3 Percentile:40.53(Nuclear Science & Technology)

no abstracts in English

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