查询词典 nuclear

Thegeneral study of nuclear structure, including the study of state and the newest development of deformed nucleus, is briefly introduced at the beginning of this article. Bohr quadrupole deformation theory has been deduced in detail. Then based on Bohr model, group kinetic energy and potential energy expression of nuclear in the condition of small deformation was deduced.

本文首先简单介绍了核结构领域的一些研究概况，包括形变核的研究现状及其最新进展，详细推导了Bohr四极形变理论，在Bohr模型基础上(假定原子核是理想不可压缩的无旋流体)，导出原子核在小形变条件下的集体运动动能和势能表达式。

A breeder reactor is a nuclear reactor which not only consumes nuclear fuel but also produces such fuel .

增殖反应堆是一种不仅消耗核燃料，还能生产核燃料的核反应堆。

For the sake of full utilization of uranium resources and the minimization of nuclear waste,the closed fuel cycle of fast breeder reactor is the fundamental way out for the sustainable development of nuclear fission energy.Based on t...

本文在介绍了国内外核燃料循环关键技术研究现状和发展趋势的基础上，探讨了我国核燃料循环科技的发展战略，并指出了为实现上述发展战略目标应采取的若干措施。

By using the method of Western blot on fractions of nuclear and cytosol of primary cultured mantle cells and immunogold electron microscopy, we found out the completely different localization of these two proteins: CaM was localized both in cytoplasm and nuclear but CaLP was localized only in the cytoplasm.

通过对体外培养的珍珠贝外套膜上皮细胞核质分离后进行的Western blot分析和免疫电镜研究发现，CaM和CaLP的亚细胞定位是截然不同的：CaM分布于外套膜上皮细胞的细胞核与细胞质中，而CaLP却仅分布于外套膜上皮细胞的细胞质中。

The ultrastructural changes during the development of sieve element companion cell complex (SE/CC complex) in Populus deltoides were investigated using electronic microscopy. The result showed that SE and CC tome from the same secondary phloem mother cell. The development of sieve element went through three stages, i. e. immature, mature, and degenerate stage. In immature stages the sieve element presented radial expansion, cell wall thickening, and production of sieve plastid and P-protein. The cytoplasma selectivly autolysed in mature stage. At the same time, karyoplasm was dispersed, and nuclear envelope was not clear, or karyoplasm was disorgnized, and nuclear envelope was clear. The karyopalsm finally turned into P-protein. In degenerate stage, the cytoplasm completely disappeared, and the function was lost.

利用电镜技术研究美洲黑杨次生韧皮部筛管和伴胞发育过程中细胞超微结构的动态变化，观察到筛管和伴胞由同一个次生韧皮部衍生细胞分裂分化形成筛管约发育历经未成熟期、成熟期和衰退期的变化未成熟期筛管分子表现为细胞的径向扩展、壁的增厚、筛管质体和P-蛋白质的产生；成熟期筛管分子细胞组分发生选择性自溶，细胞核核质弥散状，核膜不清晰，或核膜清晰而核物质降解，最后细胞核完全解体转化为P-蛋白质类的物质；衰退期筛管分子细胞质完全解体消失，失去功能。

In this thesis, we studied the effects of nuclear actin on gene transcription regulation, with a special focus on the relations between the nuclear actin and RNA polymerase II in concanavalin A-stimulated lymphocytes and HeLa cells.

本文以ConA激活的淋巴细胞和HeLa细胞为实验材料，从不同角度研究了细胞核肌动蛋白与RNA聚合酶Ⅱ相互作用，并对细胞核肌动蛋白参与RNA聚合酶Ⅱ的作用机制进行了探讨。

It is found that a continuous distribution of the nuclear temperature is unable to cause formation of any structure in the spectra, while two distinct nuclear temperatures would br...

在考虑了一定的核温度分布以后，用光学模型吸收截面所计算的裂变中子谱在结构的大小和位置上，和实验符合得很好。

The theoretical study of nuclear structure and the origin and evolution of stars elements of nuclear and cosmic ray problem.

原子核理论研究恒星的结构和演化﹐元素的起源和核合成﹐以及宇宙线问题。

China's limited nuclear counterattack ability is entirely for deterrence against possible nuclear attacks by other countries.

中国保持有限的核反击力量，是为了遏制他国对中国可能的核攻击。

Sequences homolgous to pC4 were also found in the nuclear genomes of towel gourd and pumpkin. Therefore, we propose that mitochondrial plasmid-like DNA occurred before cucumber diverged from cucurbit and had integrated into the nuclear DNA.

在丝瓜和西葫芦的核基因组中也有pC4的同源序列，因此，推测pC4可能在葫芦科分化的早期就已存在并整合于核中。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。