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Re: 60조개 세포의 수명탐구 2005년 cell 2024.09.24해당카페글 미리보기
to the analysis. 14C levels on earth have remained relatively constant over long time periods, and the radioactive decay of the isotope is used to retrospectively date biological material in archeology. The resolution in modern time is...
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우주항공청 개청 2024.06.15해당카페글 미리보기
230~240s 1,700˚F, MMH or UDMH, aerozine 50), 태양풍, 레이저 2. 원자력추진(액체수소) : fission Isp = 2,000s, radioactive isotope, fusion Isp =5,000s 3. 전기추진(thruster) Isp = 300~10,000s : 전열(resistojet, hydrazine arcjet), 정전기(ion...
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23/10/19 What's fueling concerns over Fukushima wastewater release? 2023.10.23해당카페글 미리보기
on-site. Over the years, the water has been treated to remove most radioactive contaminants, leaving only tritium — a radioactive isotope of hydrogen — present at low levels. Get the latest from UCA News. Sign-up to receive our daily...
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radiation? radioactive? 2011.04.07해당카페글 미리보기
선생님, radiation도 radioactive도 둘다 방사선으로 해석되는데, 뒤에 예를 들면 radioactive iodine, radioactive isotope 이렇게 radioactive 뒤에 꾸며주어야 하는 단어가 있으면 radioactive 그냥 혼자 방사선의 뜻으로만 쓰일때는 radiation 으로...
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레드 머큐리 2023.11.17해당카페글 미리보기
lacking its imaginary explosive properties). These include the most likely candidate, lithium-6 deuteride, a radioactive isotope of lithium hydride that is used as a fuel in a specific design of nuclear warheads. Various other chemicals...
