• 제목/요약/키워드: Republic of Korea

검색결과 3,246건 처리시간 0.037초

대한민국의 데이터를 활용한 국내·외 평가 방법론에 따른 축산물 취식 시 삼중수소 유효선량 평가 비교·분석 (Comparative Analysis of Effective Dose Evaluation forTritium in Animal Product Ingestion According to Domestic and International Evaluation Methodologies Using Data from the Republic of Korea)

  • 박제완;김용민
    • 방사선산업학회지
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    • 제17권4호
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    • pp.437-442
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    • 2023

  • This study conducted a comparative analysis of dose evaluations for ingestion of animal products based on data from nuclear power plants in the Republic of Korea, using methodologies from the Republic of Korea, 'IAEA TRS-472', and 'CSA N288.1:14'. The research focused on tritium, the most significant constituent among the gaseous and liquid radioactive emissions. The combined evaluation of tritium, in the form of tritiated water (HTO) and organically bound tritium (OBT), yielded results of 1.143 μSv y-1 for the Republic of Korea, 0.965μSv y-1 for 'TRS-472', and 0.886μSv y-1 for 'N288.1:14'. Despite the Republic of Korea's guidelines not considering OBT, the evaluation results for the Republic of Korea were higher compared to other methodologies. This discrepancy was attributed to the unique approach of not considering the moisture content per individual in the calculations of plant and feed concentration in the Republic of Korea and the simultaneous consideration of specific-activity model and transfer model. The study highlights the necessity of developing dose evaluation models tailored to regional characteristics and underscores the importance of including OBT in these evaluations.

  • https://doi.org/10.23042/radin.2023.17.4.437 인용 PDF

기후변화에 따른 미래 항공기 운영 환경 변화 (The Impact of Climate Change on Future Aircraft Operation)

  • 박수연;박상환;이건희;정혜정;강경민;김공요;황재돈;김성
    • 대기
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    • 제34권3호
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    • pp.273-281
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    • 2024

  • Analyzing the information about climate change on Korean Peninsula is essential for the national defense. In this study, we used HadGEM3-RA model output (a member of CORDEX-EA) and analyzed the 3 operational weather factors (VMC, runway temperature, WBGT), which affect the aircraft field. The number of future limited days was quantitatively calculated based on the model outputs applying SSP1-2.6 and SSP5-8.5 and the operational limits of the previous three factors, and the spatial distribution, time series, and correlation of each result were analyzed. In conclusion, it was analyzed that the number of limited days by VMC would decrease, resulting from the rise in temperature and the drop in relative humidity. This means the operational environment in VMC will improve. On the other hand, the number of limited days by the runway temperature and WBGT would increase, resulting from the rise in temperature. This means the operational environment in runway temperature and WBGT will worsen.

  • https://doi.org/10.14191/Atmos.2024.34.3.273 인용 PDF