1.Using BCS wave functions and projective wave functions, the relative values of α—reduced width, |M|~2, for _(84)Po even-even isotopes and _(85)At odd-even isotopes have been calculated.
利用BCS波函数和投影波函数计算了_(84)Po偶-偶同位素及_(8)At奇—偶同位素基态的α约化宽度的相对值|M|~2。
2.STUDIES ON SEPARATION OF LITHIUM ISOTOPES BY SOLVENT EXTRACTION——Ⅰ.THE SEPARATION EFFECTS OF LITHIUM ISOTOPES BY SUDAN I-NEUTRAL LIGAND SYNERGETIC EXTRACTION SYSTEMS
溶剂萃取分离锂同位素研究——Ⅰ.苏丹Ⅰ-中性配位体协萃体系萃取分离锂同位素效应
3.In this paper, the helium and argon isotopes of groundwater in Hebei plain are analyzed. According to "excess helium" (4He exc) 3He/4He ratios,δ3He value, 38Ar/36Ar and 40Ar/36Ar ratios, the helium and argon isotopes of groundwater in Hebei plain show seven characteristics: ①The concentrations of "excess helium" in groundwater increase in the flow direction of groundwater.
通过对河北平原地下水氦氩同位素进行分析比较,根据过剩He(4He exc)、3He/4He比值、δ3He和36Ar/38Ar及40Ar/ 36Ar值分析认为,河北平原地下水氦氩同位素有7个特征:①地下水中过剩He浓度沿地下水的流向而增高;
4.Using carbon isotopes and organism sign compound and character of maturity to compare, we think that asphaltum show in south cincture is from three set source rock of different carbon isotopes-lower Silurian to middle and upper Ordovician, middle and upper Cambrian lower Cambrian & Sinian;
利用碳同位素、生物标记化合物、成熟度特征对比认为南带沥青显示分别来自下志留-中上奥陶统、中上寒武统、下寒武统和震旦系三套同位素分布有异的源岩；
5.THG APPLICATION OF STABLE ISOTOPES TO THE PROSPECTING EVALUATION OF GOLD ORE DEPOSITS
稳定同位素与金矿找矿评价
6.Investigating stable isotopes and trace elements, Jurian Hoogewerff of the Institute of Food Research in Norwich, England, and other researchers have claimed that ?tzi probably spent most of his final years in the Ventertal or nearby valleys to the north.
英国诺威治食品发展研究所的胡格卫夫与其他的研究人员，研究稳定同位素与痕迹元素，认为奥兹也许在过世前几年，大部份时间都在北方的文特佗或附近山谷活动。
7.Using new developed radiochemical analysis methodsand instruments, and collecting the surface soil samples from variousareas of Japan, sectiments on the bottom of lake and sea,sea waterand those samples related to the Bikini event happened in. 1954.The content of plutonium isotopes,~(241)Am and ~(237)Np in environmentalsample,their depth profile variation with time and the-relationshipbetween them with organic materials were studied.
采用新建立的放射化学方法和仪器,从日本各地收集表土、海湖沉积物、海水以及1954年“比基尼事件”的有关样品,研究了环境样品中的钚同位素、~(241)Am和~(237)Np的含量及其深度分布、随时间的变化以及和有机物的关系。
8.Any of several radioactive gases that are isotopes of radon and are products of radioactive decay.
射气几种氡的同位素的放射性气体，是放射性物质衰变的产物
9.Discussion of the sources and characteristics on Sr、Nd、Pb isotopes of the Carboniferous to Permian post-collision granites from Tianshan
天山石炭—二叠纪后碰撞花岗岩的Nd、Sr、Pb同位素源区示踪
10.Our key insight was the realization that different xenon isotopes in our Oklo sample were created at different times—following a schedule that depended on the half-lives of their iodine parents and tellurium grandparents.
我们的关键性认知是理解到，欧克陆标本中各种氙同位素是在不同时间生成的，时程表取决于它们的母元素碘和再上一代元素碲的半衰期。
