The theory of nucleosynthesis of heavy element and some new model of AGB nucleosynthesis are introduced.
介绍了重元素核合成理论和一些最新的AGB星核合成模型,利用参数化方法计算了AGB星核合成的产量,得到了不同中子数密度(初始金属丰度)、脉冲周期、重叠因子下[Pb/Ce]的数值,在此基础上讨论了铅星产生的物理条件,进而解释了已观测到的各金属丰度下AGB星Pb丰度离散的问题。
Adopting new nucleosynthesis scenario and branch s-process path,we calculated the surface abundances of solar metallicity 3M ·○ TP-AGB star with different initial abundances value:solar heavy element abundances,pure r-process and pure main s-process component of solar heavy element abundances,respectively.
采用新的 s-过程核合成模型和分叉 s-过程反应通道 ,分别取太阳系重元素丰度、太阳系纯 r和 s-main分量的重元素丰度作初值 ,计算了太阳金属丰度 3M○· TP-AGB星表面重元素丰度 。
Adopting new s-process nucleosynthesis scenario and branch s-procees path,we calculate the heavy-element abundance of solar metallicity 3M ○· thermal pulse AGB stars.
采用新的 s-过程核合成模型和分叉 s-过程反应通道 ,计算了太阳金属丰度 3M○· TP-AGB星 He壳层内重元素核合成 。
The effect of the compound nucleating agent hydrotalcite(HT)/ionomer(Surlyn)/poly(ethy- lene glycol)(PEG) on the non-isothermal crystallization behavior of poly(ethylene terephthalate)(PET) was investigated.
研究了水滑石(HT)/离子键聚合物(Surlyn)/聚乙二醇(PEG)复合成核剂对聚对苯二甲酸乙二醇酯(PET)非等温结晶性能的影响。
The process by which heavier chemical elements are synthesized from hydrogen nuclei in the interiors of stars.
核合成较重的化学元素从星球内部的氢核合成的过程
The Synthesis of Nucleating Agents MDBS and DMDBS;
成核剂MDBS和DMDBS的合成
A messenger RNA molecule synthesized from the DNA directs the synthesis of the protein.
由去氧核糖核酸合成的讯息核糖核酸分子主导着蛋白质的合成。
aminoacyl-tRNA synthetase
氨酰转移核糖核酸合成酶
dinucleotide:a nucleotide molecule that consists of a combination of two nucleotide units.
二核苷酸:两个单核苷酸结合而成的核苷酸分子.
A nucleotide molecule that consists of a combination of two nucleotide units.
二核苷酸两个单核苷酸结合而成的核苷酸分子
SYNTHESIS OF OLIGONUCLEOTIDES WITH IMMOBILIZED RNase A
用固定化牛胰核糖核酸酶催化合成寡核苷酸
A polymeric compound consisting of a number of nucleotides.
多（聚）核苷核由许多核苷酸构成的一种聚合化合物
SYNTHESIS AND CRYSTAL STRUCTURES OFMONONUCLEAR,CONJUGATED MONONUCLEAR ANDBINUCLEAR COPPER(Ⅱ)-SCHIFF BASE COMPLEXES;
单核、共轭单核、双核Schiff碱铜配合物的合成及晶体结构(英文)
Study on Synthesis of Sorbitol-Typed Clarifying Nucleating Agent;
山梨醇类透明成核剂合成工艺的研究
The Synthesis of Nucleating Agents NA-11 and NA-21 of Polypropylene;
聚丙烯成核剂NA-11和NA-21的合成研究
"Nucleoprotein: Macromolecular complex consisting of a protein linked to a nucleic acid, either DNA or RNA."
核蛋白: 蛋白质连结于核酸(去氧核糖核酸或核糖核酸)而成的大分子集合体。
" Nucleoprotein： Macromolecular complex consisting of a protein linked to a nucleic acid, either DNA or RNA."
核蛋白:蛋白质连结于核酸(去氧核糖核酸或核糖核酸)而成的大分子集合体。
Synthesis and Fabrication of Inorganic/Polymer Core/Shell Microspheres
无机/聚合物核壳微球的合成与组装
SYNTHESIS AND CHARACTERIZATION OF Eu(Ⅲ)-Zn(Ⅱ) BINUCLEAR COMPLEXES
铕(Ⅲ)-锌(Ⅱ)双核配合物的合成和表征
Studies on the Synthesis and Properties of Steroid-nucleoside Conjugates;
甾体—核苷缀合物的合成及其性质研究
Study on Synthesis and Properties of Multi-Arm Star Polymers;
星型核—多臂聚合物的合成与性能研究
Synthesis and Characterization of Heterometallic Clusters Containing [Mo_2S_4]～（2-） Unit;
含[Mo_2S_4]～（2-）单元的杂核簇合物合成与表征