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Journal Articles

Inverse problems in nuclear engineering; Old but new approach for bottleneck removal

Itagaki, Masafumi*; Kurihara, Kenichi

Nippon Genshiryoku Gakkai-Shi, 44(12), p.873 - 878, 2002/12

An inverse problem has been known as a method to identify the cause on the basis of consequent observation and mathematical investigation. In recent years, the advancement of computer technology and numerical algorithms has stimulated this field of methodology. This leads to that an inverse problem is being noted as a new area of apllied physics and engineering. In this review, several inverse problems dealt in the nuclear engineering are presented together with the updated topics on this problem.

JAEA Reports

None

*; *; ; Aoto, Kazumi

JNC-TY9400 2000-010, 138 Pages, 2000/03

JNC-TY9400-2000-010.pdf:5.15MB

None

Journal Articles

Current profile reproduction study on the basis of a new expansion method with the eigenfunctions defined in the tokamak plasma interior

Kurihara, Kenichi

Fusion Technology, 34(3), p.548 - 552, 1998/11

no abstracts in English

JAEA Reports

Journal Articles

Reconstruction of plasma current profile of tokamaks using combinatorial optimization techniques

Kishimoto, Maki; ; Ara, Katsuyuki; Fujita, Takaaki; *

IEEE Transactions on Plasma Science, 24(2), p.528 - 538, 1996/04

 Times Cited Count:1 Percentile:95.39(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Solution of electromagnetic inverse problem using combinational method of hopfield neural network and genetic algorithm

Kishimoto, Maki; ; Ara, Katsuyuki

Journal of Applied Physics, 79(1), p.1 - 7, 1996/01

 Times Cited Count:9 Percentile:53.25(Physics, Applied)

no abstracts in English

Journal Articles

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

Ara, Katsuyuki; ; ;

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

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

Estimation method for inverse problem in advanced technology

; Ara, Katsuyuki

Nippon AEM Gakkai-Shi, 3(2,3), p.1 - 7, 1995/00

no abstracts in English

Journal Articles

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

Ara, Katsuyuki; ; ;

Proc. of the Japan-Central Europe Joint Workshop on Advanced Computing in Engineering, 0, p.221 - 226, 1994/00

no abstracts in English

Journal Articles

A Proposal on non-destractive measuring method for embrittlement of reactor pressure vessel

Ara, Katsuyuki; ;

MAG-93-218, p.19 - 38, 1993/11

no abstracts in English

Journal Articles

The Inverse estimation of current distribution using combination method of GA and neural-network

Kishimoto, Maki; ; Ara, Katsuyuki

MAG-93-167, p.17 - 34, 1993/09

no abstracts in English

Journal Articles

Measurement of magnetic fields from human body in connection with inverse problems

Ara, Katsuyuki; ; Kishimoto, Maki

MAG-93-91, p.37 - 56, 1993/03

no abstracts in English

Journal Articles

The Application of genetic algorithms to inverse problems in electron magnetics

Kishimoto, Maki; ; Ara, Katsuyuki

MAG-92-235, p.83 - 96, 1992/11

no abstracts in English

Journal Articles

Understanding of spatial transfer functions between magnetic fields and their sources in connection with forward and inverse problems

Ara, Katsuyuki; ; Kishimoto, Maki

Nonlinear Phenomena in Electromagnetic Fields, p.193 - 196, 1992/00

no abstracts in English

Journal Articles

On spatial resolution in measurement of magnetic fields

; Ara, Katsuyuki

MAG-91-159, p.43 - 54, 1991/08

no abstracts in English

Journal Articles

Oral presentation

The Simulation of temperature distribution in 1F Unit 3 by using CFD method

Kaku, Eiji*; Okamoto, Koji*; Kondo, Masahiro*; Ozdemir, E.*; Shiba, Tomoki*; Sato, Ikken

no journal, , 

In this study aiming at contribution for safe decommissioning of Fukushima-Daiichi NPP, CFD (Computational Fluid Dynamics) method was applied and temperature distribution of Unit 3 was reproduced. This temperature distribution was then compared with the measured data obtained by TEPCO so that debris distribution can be estimated. Combined application of optimized tools and CFD method to resolve inverse problem determining best suited thermal balance within the containment vessel is a characteristic of this study.

Patent

飛行体を用いた空間線量算出方法

佐々木 美雪

not registered

JP, 2019-028137  Patent licensing information

【課題】地上の起伏とか樹木の有無のような測定場所の状況に影響されず、地上付近の空間線量を高精度に測定できる方法及びそのための装置を提供すること。 【解決手段】測定ポイントデータと、計算ポイントデータを取得し、上空からの放射線測定用に導き出した、空気による減衰、土壌散乱による減衰、森林による減衰のパラメータを考慮して、それぞれの測定ポイントと計算ポイント毎に検出確率を計算し、算出した検出確率値を用いてML-EM法の手法に則り、繰り返し計算を実施して放射線強度値を求め、算出した放射線強度値を用いて、空間線量換算係数により空間線量率に換算する。

19 (Records 1-19 displayed on this page)
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