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微量元素原始地幔标准化蛛网图上(图4b),显示富集大离子亲石元素(LILEs)Rb、Ba和Sr,而亏损Nb、Ta、Zr和Th等高场强元素(HFSEs),Nb/Ta比值介于8.32~20.62,Zr/Hf比值介于25.78~55.23。 表2. 望江山层状岩体各类岩石微量元素与稀土元素组成(×10-6) Table 2. Trace element and REE concentrations of rocks ...
型号:ASG133SDMA7AT ASG133RDNB7AT 类型:螺杆式 构造类型:全封闭式 排量类型:定量压缩机 容积效率:34234 缸径:424mm 转速:23424r/min 热水温度:2444℃ 运行电耗:344KW 冷却水温度:1℃ 适用领域:冷水机组 能效比:2wh 功率:4.2kw 加工定制:非加工定制 ...
Schorr NB, Counihan MJ, Bhargava R et al (2020) Impact of plasmonic photothermal effects on the reactivity of Au nanoparticle modified graphene electrodes visualized using scanning electrochemical microscopy. Anal Chem 92:3666–3673 Google Scholar Conzuelo F, Sliozberg K, Gutkowski R et al (...
The maturation of single-cell transcriptomic technologies has facilitated the generation of comprehensive cellular atlases from whole embryos1,2,3,4. A majority of these data, however, has been collected from wild-type embryos without an appreciation for the latent variation that is present in develo...
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Major and trace elements analyses (and especially the Si/Al and Nb/Zr ratios) are consistent with a DHF III origin of the pumices incorporated in the tsunami deposits (Fig. 5). Despite small differences between the DHF phonolitic units in terms of mineralogy and geochemistry, Si/Al and ...
96%-NIR-transmission beam splitter (BS) can be used to separate the NIR radiation from the co-propagating XUV beam. Alternatively, the BS can be exchanged with an Au mirror, resulting in 1011 W/cm2NIR intensity on the sample for laser-dressed PES. In the ultra-high-vacuum PES chamber...