R. Ohba
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View article: OPTICAL PROBE MICROPHONE
OPTICAL PROBE MICROPHONE Open
An optical prohe microphoneis under development_for the precise measurement of the pressure waveform in a narrow sound field such as the human qlottis.
View article: Validation Study for an Atmospheric Dispersion Model, Using Effective Source Heights Determined from Wind Tunnel Experiments in Nuclear Safety Analysis
Validation Study for an Atmospheric Dispersion Model, Using Effective Source Heights Determined from Wind Tunnel Experiments in Nuclear Safety Analysis Open
For more than fifty years, atmospheric dispersion predictions based on the joint use of a Gaussian plume model and wind tunnel experiments have been applied in both Japan and the U.K. for the evaluation of public radiation exposure in nucl…
View article: STUDY ON IMPROVEMENT OF SOURCE INTENSITY ESTIMATION METHOD FOR AIR POLLUTANT
STUDY ON IMPROVEMENT OF SOURCE INTENSITY ESTIMATION METHOD FOR AIR POLLUTANT Open
The purpose of this report is the improvement of the source intensity estimation based on a minimal residual method using observed and calculated data of concentration, radiation dose and so on. This source intensity estimation method uses…
View article: Review of CFD Guidelines for Dispersion Modeling
Review of CFD Guidelines for Dispersion Modeling Open
This is the review of CFD (Computational Fluid Dynamics) guidelines for dispersion modeling in the USA, Japan and Germany. Most parts of this review are based on the short report of the special meeting on CFD Guidelines held at the Interna…
View article: Study on long-term radiation exposure analysis after the Fukushima Dai-ichi nuclear power plant accident: validation of the EU long-term radiation exposure model (ERMIN)
Study on long-term radiation exposure analysis after the Fukushima Dai-ichi nuclear power plant accident: validation of the EU long-term radiation exposure model (ERMIN) Open
The Fukushima Dai-ichi nuclear power plant accident led to the dispersion of radioactive material by wind that resulted in soil and air pollution over a wide area. Even now, more than 150,000 people in Fukushima prefecture are still reloca…