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Hiroki Koike on Muck Rack

Hiroki Koike

As seen in: Asahi Shimbun, Taylor & Francis Online
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Articles by Hiroki Koike

Resonance Treatment of Double-Heterogeneous Fuel Using a Deterministic Statistical Geometry Method in Heterogeneous Transport Calculation Code GALAXY-Z

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By Hiroki Koike, Koji Asano, Satoshi Takeda, Kazuya Yamaji
| Taylor & Francis Online
Abstract A resonance calculation using a deterministic statistical geometry (DSTG) method has been developed to efficiently treat the double heterogeneity of coated fuel particles loaded in a high-temperature gas-cooled reactor. Using the DSTG method, neutron flux spatial distribution can be calculated in a heterogeneous geometry containing the randomly dispersed fuel particles and surrounding graphite matrix, which is consistent with statistical geometry in a Monte Carlo method.
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33-year-old man arrested for placing stones on train tracks

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By Hiroki Koike
| Dispatchist
Today 06:00 am JST 1 Comment Police in Oguchi, Aichi Prefecture, have arrested a 33-year-old unemployed man on suspicion of forcible obstruction of business after he placed stones on tracks at a crossing on the Meitestu (Nagoya Railroad Co) last year.Police said Koike placed stones on the tracks three times between from August 29 and September 18 at a railway crossing in Konan City, Aichi Prefecture.A train ran over the stones, and was forced to stop for about 50 minutes while a check was...
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