目前，科学家们已经描述了大约1500水熊虫，它们可以承受高达3000至5000Gy的伽马射线剂量，这是人类致死剂量的1000倍。之前的研究表明水熊虫具有强大的DNA修复能力，它们还表达一种被称为 ...
Radioactivity is a part of our earth - it has existed all along. Naturally occurring radioactive materials are present in its crust, the floors and walls of our homes, schools, or offices and in the ...
研究相关的论文题目为：“Research on microwave radiation features and lunar regolith parameters inversion of the Rümker region(月球吕姆克地区微波辐射特性及月壤参数反 ...
讲师：Christopher D. Impey - 亚利桑那大学天文学特聘教授、天文系主任。主要研究领域为：外银河系天文学、银河系天文学、天体构造等。 学院介绍：亚利桑那大学成立于1885年，是亚利桑那州第一 ...
在一项新的研究中，来自中国多家研究机构的研究人员重点研究了一种新发现的水熊虫（tardigrades）物种，对水熊虫能够抵御高剂量辐射的方法有了更多的了解。相关研究结果发表在2024年10月25日的 Science 期刊上，论文标题为 ...
激光是20世纪以来继核能、电脑、半导体之后，人类的又一重大发明，被称为“最快的刀”、“最准的尺”、“最亮的光”。英文名Light Amplification by Stimulated Emission of ...
All types of radiation become less intense as they travel further away from the radioactive material. This is because the particles or rays become more spread out. The thicker the substance ...
Radioactive materials are found naturally in the Earth. But even so, saying an area is radioactive may conjure up images of ...
This process, whereby species evolve rapidly to exploit empty ecospace, is known as adaptive radiation. In his memoir, The Voyage of the Beagle, Darwin noted, almost as if in awe, "One might ...
This means a smaller than normal current flows so the alarm sounds. An alpha source is used because alpha radiation does not penetrate very far. It is absorbed by a few cm of air. This means that ...
Our radiation oncologists use the latest technology available for radiation therapy. It’s important to understand how radiation therapy fits into your treatment plan so you can make choices about your ...
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