重元素

zhònɡ yuán sù
  • heavy element
重元素重元素
重元素 [zhòng yuán sù]
  • [heavy element] 原子量大的元素。如锕系元素

  1. 在无标样条件下,我们利用微束X荧光分析法对南极乔治王岛的6种苔藓植物的叶和茎进行重元素分析。

    Without a standard specimen , we analysed the heavy element content of 6 moss species in the King George Island of Antarctica by XRF .

  2. 考虑了重元素(包括氦元素和金属元素)扩散效应之后来构造εEridani恒星的平衡结构模型。

    Considering the heavy element ( including helium and metal element ) diffusion , we construct the stellar structure models of ε Eridani .

  3. 一些白矮星的大气中几乎只有纯氢或氦,但这颗星的大气中重元素碳的含量异常高。

    Some white dwarves4 have almost pure hydrogen or helium atmospheres , but this star has an atmosphere unusually high in the heavier element , carbon .

  4. P区重元素高氧化态的不稳定性

    On the Instability of Some Heavy Atoms of Higher Oxidation States in P-block Elements

  5. 最后简要介绍超声分子束荧光光谱、重元素同位素低温光谱、多光子电离光谱和超声分子束CARS光谱。

    Finally , the fluorescence spectroscopy , multi-photon ionization spectroscopy for supersonic molecular beam are briefly introduced .

  6. 安徽钟山铁矿植物重元素X射线荧光研究及环境指示意义

    Studying and significance of instructing environment about heavy elements of plants by XRF in Zhongshan iron mine , Anhui Province

  7. 重元素高电离的离子特性对研究激光核聚变和X射线激光等领域都很重要。

    The characteristics of the high Z ions are very important to the study of X ray lasing and other field .

  8. p区重元素亚价态离子具有立体化学活性的孤对电子,对化合物的结构和性能都产生很大的影响。

    The structures and properties of the compounds are profoundly affected by the unusual stereochemical effects of the so-called lone-pair electrons in heavy p-block elements in lower oxidation states .

  9. 利用同步辐射X射线荧光分析技术,对安徽省钟山铁矿矿区的8种植物叶片内重元素进行了研究。

    By means of SR X-ray fluorescence , we have studied the heavy elements in leaves for 8 species of plants in Zhongshan mine , Anhui province .

  10. 3M⊙AGB星重元素丰度的再研究

    The Reanalyze of the Heavy-element Abundances of the 3M_ ⊙ AGB Stars

  11. AGB星He壳层内重元素丰度的变化

    Variation of the Heavy-element Abundances in the He-shell of AGB Stars

  12. 一系列相继出现的超新星将把物质炸离星系,同时把能量和重元素投入IGM。

    A rapid succession of supernovae blasts material out of galaxies , injecting not only energy but also heavy elements into the IGM .

  13. 低质量AGB星重元素的核合成

    The heavy elements Nucleosynthesis in the low mass AGB stars

  14. 是依据FP法进行土壤、岩石中的Pb,As等微量重元素的X射线荧光定量分析的方法。

    Introduce the X-ray fluorescence quantitative analysis of minor heavy elements such as Pb , As etc. in soil and rock using FP ( Fundamental Parameter ) method .

  15. AGB星表面重元素丰度:初始丰度的影响

    The Impact of Initial Value on Surface Abundances of Heavy Elements in AGB Stars

  16. 青岛海藻重元素富集特性的SR-XRF分析及对海洋环境监测的应用

    SR-XRF Analysis of Characteristics of Heavy Element Concentration in Qingdao Algae and Application to Monitoring Oceanic Pollution

  17. 利用同步辐射X射线荧光(SRXRF)定性和定量地分析了采自中国青岛海滨的9种海藻14个样品重元素的富集特性,发现不同种海藻重元素的富集特性有很大的差异。

    Quantative and qualitative analysises of the heavy element concentration characteristics of 14 specimens of 9 kinds of Qingdao algae by synchrotron radiation X-ray fluorescence ( SR-XRF ) are presented . Results show that various algae are quite different in element concentration .

  18. DTA模型是目前精度最高的,但其计算量巨大,适用于较轻的元素,对较重元素的计算仍非常困难,AA模型计算量最小,但结果却略显粗糙。

    The DTA model has the highest accuracy and the most expensive computational cost in the above four models , which can be used for the calculation of the lighter elements but encounter difficulties in the calculation of heavy elements .

  19. 在相对论密度泛函ZORA方法的基础上,提出一种用于含重元素体系的接合二分量-标量相对论密度泛函计算方法。

    A scheme for joined two component-scalar relativistic density functional calculations of systems containing a few heavy atoms is proposed based on the relativistic density functional ZORA method with an atomic model potential approximation .

  20. r-过程核合成的场所和重元素丰度的离散

    Sites for r-process Nucleosynthesis and Scatter of Abundance for Heavy Elements

  21. 从铁到铀的重元素如何形成?

    How were the heavy elements from iron to uranium made ?

  22. 贫金属星重元素丰度研究进展

    Progress in the Study of Abundances of Heavy Elements in Metal-Poor Stars

  23. 重元素高阶电离势的计算

    The calculation of high order ionization potential for heavy atoms

  24. 重元素合成于巨星的内部。

    Heavy elements have been synthesized in the interiors of giant stars .

  25. 星风吸积引起的钡星重元素超丰

    S process Element Overabundances of Ba Stars Through Wind Accretion

  26. 这是一个重元素,产生于超新星的热核爆炸。

    It 's a heavy element produced in thermonuclear explosions of supernovae .

  27. 一种研究贫金属星重元素丰度分布的方法

    A method of studying the abundances of heavy elements in metal poor stars

  28. 自然界中超重元素的寻找方法

    The methods of searching super - element in nature

  29. 贫金属星的重元素丰度Ⅱ.细致的光谱分析

    Abundances of Heavy Elements in Metal Deficient Stars ⅱ . Detailed Spectroscopic Analysis

  30. 钡星重元素丰度的再研究

    A Re-analysis of the Heavy-Element Abundance of Barium Stars