• Nuclear Engineering and Technology
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• 제42권1호
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• pp.1-8
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• 2010

Geological disposal is designed to provide safe containment of radioactive waste for very long times, with the containment provided by a combination of engineered and geological barriers. In the extreme long term, after many thousands of years or longer, residual amounts of long-lived radionulides such as Cl-36, but also radionuclides in the natural decay chains, may be released into the environment normally accessed and used by humans, termed here, the biosphere. It is necessary to ensure that any such releases meet radiation protection objectives through the development of a safety case, which will include assessment of radiation doses to humans. The design of such dose calculations over such long timeframes is not straightforward, because of the range of potentially relevant assumptions which could be made, concerning environmental change and changes in human behavior. These conceptual uncertainties are additional to those that more typically arise, for example, in the assessment of present day situations, but which also have to be addressed. The issue has therefore been subject to international cooperation for many years. This paper summarizes the evolution and results of that collaboration leading up to the present day, taking account of developments in international recommendations on radiation protection objectives and the more recent greater focus on preparation of site specific safety cases.

• 방사성폐기물학회지
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• 제18권2_spc호
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• pp.305-315
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• 2020

방사성폐기물의 심층처분에서 생물권에서의 방사성 핵종 이동을 핵종의 이동 경과 시간을 계산하여 평가하는 방법이 제안되었다. 방사성 핵종은 자연 방벽에서 유출되어 지하 천부의 지하수 흐름을 따라 대규모 지표수체에 도달한다고 가정하였다. 생물권은 기반암 위에 있는 대수층을 포함하는 천부 지하 환경으로 정의하였다. 제안된 방법을 이용하여, 계산 알고리즘을 수립하였고, 알고리즘을 수행하는 컴퓨터 코드를 작성하였다. 작성된 코드는 간단한 사례에서 계산된 모의 결과를 해석해 계산 결과 및 지표 부근에서의 방사성 핵종 이동에 의한 방사선량 평가에 널리 이용되는 공공 프로그램의 계산 결과와 비교하여 검증하였다. 사례 연구 조건을 가상의 심층처분장에서의 방사성 핵종 이동에 대한 이전 연구를 통해 작성하였다. 작성된 코드는 사례 연구에서 생물권의 하천으로 유출되는 핵종의 이동량을 계산하였다. 이전 연구에서는 가상의 처분장에서 모암까지의 방사성핵종의 이동만을 보여주었기 때문에, 이 코드는 모든 경로를 지나가는 방사성 핵종의 전체적인 이동을 파악하는데 도움이 될 수 있었다.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2005년도 생물공학의 동향(XVI)
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• pp.27-28
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• 2005

• 한국식품영양과학회:학술대회논문집
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• 한국식품영양과학회 2004년도 Annual Meeting and International Symposium
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• pp.198-202
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• 2004

• 한국양식학회:학술대회논문집
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• 한국양식학회 2004년도 수산관련학회 공동학술대회 발표요지집
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• pp.35-37
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• 2004

• 한국미생물학회:학술대회논문집
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• 한국미생물학회 2009년도 International Meeting of the Microbiological Society of Korea
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• pp.26-26
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• 2009

• 한국식물학회:학술대회논문집
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• 한국식물학회 1998년도 The 12th Symposium on Plant Biotechnology Vol.12
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• pp.1-1
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• 1998

• 자원환경지질
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• 제28권3호
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• pp.279-286
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• 1995

The amount of the high level radioactive wastes in Korea will be increased up to 14,297 MTU about 2010 year. Most of countries adopt the concept of deep burial repository in high level radioactive waste disposal. Because the high level radioactive wastes are very toxic in biosphere and to human, the data verifing its never return to the biosphere are requisite for the disposal. Presently, the evaluating techniques for the high level radioactive waste disposal are not fully developed. Therefore, in order to dispose the high level radioactive wastes in proper time the R & D of it is urged in our country. The R & D and/or the international joint research programme for the disposal of high level wastes have already been proceeded. In our country no plan for its disposal has been prepared. It is the time that the direction of the R & D is to be discused seriously. The R & D for the disposal of high level radioactive wastes in Korea is believed to be focused on developing the pecular techniques such as in situ characteristics of groundwater flowage, and change of properties of in situ rock mass at thermal effects.

• Journal of Species Research
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• 제1권2호
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• pp.133-150
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• 2012

Amynthas tralfamadore sp. nov. is described from the Mt Halla, Jeju Island biosphere exhibition housed at NIBR Incheon. This species' taxonomy is problematical since it is similar to Amynthas masatakae (Beddard, 1892) from Japan, itself previously reported from Korea and at one time associated with Amynthas campestris (Goto & Hatai, 1898) and A. parvicystis (Goto & Hatai, 1899), all three variously implicated in prior A. robustus (Perrier, 1872) along with Amynthas aspergillum (Perrier, 1872). Based on reinspection of the London lectotype of A. masatakae-here designated and sketched for the first time-the current solution is for maintenance of all five taxa separately. A closely-related Japanese species-Metaphire ryunome sp. nov.-is comparable to Korean Metaphire reisuiensis (Kobayashi, 1938) comb. nov. Another specimen was identified as Amynthas micronarius (Goto & Hatai, 1898), a new record for Korea. It matches the newly-designated neotype (Tokyo NMST An446) and an annotated synonymy is provided; however, erstwhile synonyms, Amynthas shimaensis (Goto & Hatai, 1899) and A. yamizoyamensis (Ohfuchi, 1935) combs. novae, are briefly redescribed and provisionally restored to the Japanese list. mtDNA COI-5P barcode analyses support species identifications.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2009년도 학술논문요약집
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• pp.275-276
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• 2009