• Nuclear Engineering and Technology
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• v.56 no.5
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• pp.1874-1879
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• 2024

Owing to strict radiation safety management in Korean nuclear power plants (NPPs), most radiation workers receive very low radiation doses, even lower than the annual dose limit for the general public. However, the occupational dose distribution indicates that some Korean NPP workers receive a relatively higher dose than the average dose. This inequity in radiation exposure could be reduced by providing customized radiation protection measures, such as dose constraints, to workers receiving relatively higher doses. In this study, dose normalization was performed to identify the highest radiation exposure work in Korean pressurized water reactors (PWRs). The results show that most of the occupational exposure in Korean PWRs occurs during the planned maintenance period. Finally, the three highest radiation exposure tasks in Korean PWRs were identified: nozzle dam installation and removal, eddy current testing, and man-way opening and closing.

• Proceedings of the Korean Environmental Health Society Conference
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• 2005.12a
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• pp.49-50
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• 2005

• Archives of Plastic Surgery
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• v.43 no.1
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• pp.99-102
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• 2016

• 한국초전도학회:학술대회논문집
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• v.16
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• pp.78-78
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• 2006

• Proceedings of the Korean Society for Applied Microbiology Conference
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• 2002.10a
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• pp.99-99
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• 2002

• Proceedings of the SAREK Conference
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• 2004.11a
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• pp.11-11
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• 2004

• Proceedings of the SAREK Conference
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• 2004.11a
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• pp.141-141
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• 2004

• Proceedings of the SAREK Conference
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• 2004.11a
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• pp.105-105
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• 2004

• 대한미세수술학회:학술대회논문집
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• 1996.10a
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• pp.168.1-168.1
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• 1996

• Journal of the Chungcheong Mathematical Society
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• v.26 no.3
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• pp.525-532
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• 2013

In this paper, when N is a compact Riemannian manifold of class (A), we consider the existence of some warping functions on Riemannian warped product manifolds $M=[a,{\infty}){\times}_fN$ with prescribed scalar curvatures.