共查询到20条相似文献，搜索用时 27 毫秒
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L. N. Moskvin 《Journal of Analytical Chemistry》2009,64(12):1290-1291
Chronicle
Birthday of Vladislav Veniaminovich Malakhov 相似文献3.
Structural Chemistry - On the occasion of the Year of the Periodic Table of the Elements, the authors look back at the original discovery, its simultaneity and the difficulties of the discoverers... 相似文献
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G. Papp G. Marx S. Szalai E. Tóth 《Journal of Radioanalytical and Nuclear Chemistry》2001,249(3):541-545
Short-term fluctuations of indoor radon may occur due to weather conditions, seismic activity etc. These average out during the year. According to our measurements, in the very same room the yearly average of radon concentration may also change by 25–50% from year to year. This observation may make the comparison of indoor radon levels of houses measured in different years unjustified; large scale radon maps based upon such data are less reliable. Possible causes of such year-by-year changes are discussed empirically. The conclusions may be helpful to foresee long-term tendencies, implied by changes of living habits and by climatic shifts. 相似文献
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