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Miura, Tsutomu,Matsue, Hideaki Korean Nuclear Society 2016 Nuclear Engineering and Technology Vol.48 No.2
Prompt gamma activation analysis using a thermal neutron-guided beam at Japan Atomic Energy Agency JRR-3M was applied for the precise determination of Si in silicon nitride ceramic reference materials [Japan Ceramic Reference Material (JCRM) R 003]. In this study, the standard addition method coupled with internal standard was used for the nondestructive determination of Si in the sample. Cadmium was used as internal standard to obtain the linear calibration curves and to compensate for the neutron beam variability. The analytical result of determining Si in JCRM R 003 silicon nitride fine powder ceramic reference materials using prompt gamma activation analysis was in good agreement with that obtained by classical gravimetric analysis. The relative expanded measurement uncertainty (k = 2) associated with the determined value was 2.4%.
T.Funaki,M.Michihira,S.Fukui,K.Matsu-ura,N.Kimura 전력전자학회 1995 ICPE(ISPE)논문집 Vol.1995 No.10
In this paper, we developed a simple ac/dc converter model for a power system stability analysis with considering the losses in a converter. The stability analysis deal the power system condition in the RMS value, and the developed converter model is arranged to be equivalent to the actual converter in its energy and RMS value. The developed model is consist of an ideal converter and a local load. We became to study the power system stability with more accuracy without increasing the computing burden so much by using this model.