重元素
- 名heavy element
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[heavy element] 原子量大的元素。如锕系元素
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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 .
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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 .
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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 .
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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
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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 .
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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
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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 .
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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 .
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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 .
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3M⊙AGB星重元素丰度的再研究
The Reanalyze of the Heavy-element Abundances of the 3M_ ⊙ AGB Stars
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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
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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 .
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低质量AGB星重元素的核合成
The heavy elements Nucleosynthesis in the low mass AGB stars
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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 .
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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
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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
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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 .
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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 .
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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 .
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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
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从铁到铀的重元素如何形成?
How were the heavy elements from iron to uranium made ?
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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
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重元素高阶电离势的计算
The calculation of high order ionization potential for heavy atoms
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重元素合成于巨星的内部。
Heavy elements have been synthesized in the interiors of giant stars .
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星风吸积引起的钡星重元素超丰
S process Element Overabundances of Ba Stars Through Wind Accretion
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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 .
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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
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自然界中超重元素的寻找方法
The methods of searching super - element in nature
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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
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钡星重元素丰度的再研究
A Re-analysis of the Heavy-Element Abundance of Barium Stars