Sites for r-process Nucleosynthesis and Scatter of Abundance for Heavy Elements;
r-過程核合成的場(chǎng)所和重元素豐度的離散
We investigate the solutions of differential equation arising in the R-process of supernova expansion,show the well-posedness of solution in general conditions.
研究了超新星爆發(fā)的R-過程出現(xiàn)的微分方程,證明了在一般情況下的解的適定性,并對(duì)兩類特殊情況的求解作了進(jìn)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,將超新星爆發(fā)產(chǎn)生r-過程元素的事件分為2類:A類(r-rich)事件和B類(r-poor)事件,結(jié)合所得到的Ⅱ型超新星r-過程元素的產(chǎn)量和產(chǎn)區(qū),計(jì)算了貧金屬星較重r-過程元素的彌散,并與觀測(cè)進(jìn)行對(duì)比分析,解釋早期星系化學(xué)演化。
The Heavy R-process Elements Yields and Abundances Scatter in the Halo of Galaxy
星系暈較重r-過程元素產(chǎn)量和豐度的離散
The Mass Accretion and Yields of r-process in the s+r Stars;
s+r星的r-過程物質(zhì)吸積及產(chǎn)量估計(jì)
A research on the element migration in the course of smoking by the element ratio method
元素比值法用于吸煙過程的元素遷移研究
The Yields of R-process Elements and Chemical Evolution of the Galaxy;
r-process元素產(chǎn)量、產(chǎn)區(qū)及星系化學(xué)演化
Rare earth elements can also adjust the growth process of plant.
稀土元素也可調(diào)節(jié)植物的生長(zhǎng)過程。
One of the products of this breakdown is the element chlorine.
這種分解過程的產(chǎn)物之一是元素氯。
Study on Chelation Character of Metal Elements in Pulp Flow
紙漿過程流金屬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).
我們考慮從幾個(gè)元素中只取r個(gè)（r≤n）排列一行的情形。
The Martin Boundary of Minimal Processes and Ray-Knight Compactification;
極小過程的Martin邊界與R-K緊化
The Performance Analysis on Government R&D Input Based on Process;
基于過程的政府R&D投入績(jī)效分析
Process Performance--New Perspective of R&D Team Management;
過程績(jī)效——R&D團(tuán)隊(duì)管理的新視角
The Evolution of R&D Process Management Based on IT/IS;
基于IT/IS的R&D過程管理的演進(jìn)
Evaluation of GSM-R Network Performance Quality through Signalling Processes
通過信令流程評(píng)估GSM-R網(wǎng)絡(luò)性能質(zhì)量
A Parametric Approach to Mental-poor S-,R-process Both Enhanced Stars
貧金屬s-、r-過程雙增豐星參數(shù)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對(duì)元素的原子、離子及單質(zhì)性質(zhì)的影響
Investigation of the Parameters of Convectional Model for Heavy-Element Enhanced of s+r Stars;
單輻照參數(shù)化模型研究s+r星重元素超豐
Study on the Transfer Course of the Nitrogen Element of Lake WuLiangSuHai Through Hydrophytes Harvesting Project;
水草收割工程對(duì)烏梁素海氮元素轉(zhuǎn)移過程的研究
Variation of Rare Earth Elements in Process of Smelting of Copper Ores in the Ancient Times
古代銅礦冶煉過程中稀土元素的變化研究