Sites for r-process Nucleosynthesis and Scatter of Abundance for Heavy Elements;
r-过程核合成的场所和重元素丰度的离散
We investigate the solutions of differential equation arising in the R-process of supernova expansion,show the well-posedness of solution in general conditions.
研究了超新星爆发的R-过程出现的微分方程,证明了在一般情况下的解的适定性,并对两类特殊情况的求解作了进一步的研究。
Based on the calculation of yields and productive mass range of this paper,the abundance scatter of the heavy r-process elements was calculated and the results were compared with the observation.
采用Fields等所提出的模型,将超新星爆发产生r-过程元素的事件分为2类:A类(r-rich)事件和B类(r-poor)事件,结合所得到的Ⅱ型超新星r-过程元素的产量和产区,计算了贫金属星较重r-过程元素的弥散,并与观测进行对比分析,解释早期星系化学演化。
The Heavy R-process Elements Yields and Abundances Scatter in the Halo of Galaxy
星系晕较重r-过程元素产量和丰度的离散
The Mass Accretion and Yields of r-process in the s+r Stars;
s+r星的r-过程物质吸积及产量估计
A research on the element migration in the course of smoking by the element ratio method
元素比值法用于吸烟过程的元素迁移研究
The Yields of R-process Elements and Chemical Evolution of the Galaxy;
r-process元素产量、产区及星系化学演化
Rare earth elements can also adjust the growth process of plant.
稀土元素也可调节植物的生长过程。
One of the products of this breakdown is the element chlorine.
这种分解过程的产物之一是元素氯。
Study on Chelation Character of Metal Elements in Pulp Flow
纸浆过程流金属元素的螯合特性研究
Let us suppose that with n objects and only wish to arrange a row of r of them. (r≤n).
我们考虑从几个元素中只取r个（r≤n）排列一行的情形。
The Martin Boundary of Minimal Processes and Ray-Knight Compactification;
极小过程的Martin边界与R-K紧化
The Performance Analysis on Government R&D Input Based on Process;
基于过程的政府R&D投入绩效分析
Process Performance--New Perspective of R&D Team Management;
过程绩效——R&D团队管理的新视角
The Evolution of R&D Process Management Based on IT/IS;
基于IT/IS的R&D过程管理的演进
Evaluation of GSM-R Network Performance Quality through Signalling Processes
通过信令流程评估GSM-R网络性能质量
A Parametric Approach to Mental-poor S-,R-process Both Enhanced Stars
贫金属s-、r-过程双增丰星参数化研究
The Influence of Element's Z~*/r to element's atom,bydronium and single chemical's property
元素的Z~*/r对元素的原子、离子及单质性质的影响
Investigation of the Parameters of Convectional Model for Heavy-Element Enhanced of s+r Stars;
单辐照参数化模型研究s+r星重元素超丰
Study on the Transfer Course of the Nitrogen Element of Lake WuLiangSuHai Through Hydrophytes Harvesting Project;
水草收割工程对乌梁素海氮元素转移过程的研究
Variation of Rare Earth Elements in Process of Smelting of Copper Ores in the Ancient Times
古代铜矿冶炼过程中稀土元素的变化研究