查询词典 ionization

And those collision cross sections may be determined by fitting the simulation results from experiment data. At first, we calculate the effective ionization coefficients/N and drift velocity Ve of pure gas to determine collision cross sections in this paper, and the calculated results are agreement with the experiment data.

本文首先建立单一气体电子崩发展的蒙特卡罗模拟方法，用得出的电子崩参数与实验结果比较的方法，计算单一气体的/N和漂移速度Ve，并与实验数据比较，以确定碰撞截面的准确性。

The electronic stopping and nuclear stopping are well known ionization, excitation and elastic collision of particles, the nuclear reaction stopping comes from the contribution of secondary particles emitted from nuclei during nuclear reaction.

对铁离子在水中产生的能量沉积和铁离子与水介质发生核反应后产生的次级碎片的能量沉积进行了模拟研究，得到了通过核反应过程产生次级粒子所导致的剂量贡献。

In atmosphere, lightning , strong electric field , rock , ray in soil also can make air ionization happened; Waterfall , fountain , sea wave , rainwater etc., the meeting uses water and the windage but produces a free electron.

大气中闪电、强电场、岩石、土壤中的射线也能使空气发生电离；瀑布、喷泉、海浪、雨水等，会使水与空气摩擦而产生自由电子。

In the paper the theory of gas ionization and particle electrization is used to discuss the phenomenon.

另外，还为高压喷射系统设计制作了控制电路和开发了时序控制软件，为进行液体代用燃料的研究提供了实验准备。

After geometric optimizations of the isolated donor and acceptor, the ionization potential of the donor and the electron affinity of the acceptor have been calculated.

通过孤立给体和受体的几何构型优化，计算了给体的电离能和受体的电子亲和能。

The results of electron affinity and ionization potential show that theelectron transfer properties of quinone are enhanced with the enlongation of thesubstituent.

电子亲和势和电离势的研究结果表明，随着醌环上异戊烯支链的增长，醌的电子传递能力有增强的趋势。

The comparison of our calculations the ionization potential (IP and electron affinity for silver clusters with experiments shows that PW91PW91 functional give satisfactory results.

理论计算方面也已经有大量的文献报道了自由Ag原子构成的原子簇和纳米粒子的几何结构，物理性质和电子结构性质。

The electron affinity and ionization potential in La 2C n cluster were calculated.

用B3LYP/Lan1 2dz方法优化了La2 Cn(n =- 1 ，0 ，+1 )分子的结构，计算了La2 C的电子亲和势和离化能，并对计算结果进行了讨论。

The reason is that the energy deposited by heavy ions can directly or indirectly migrate along DNA strands, and can firstly break the bonds of highest electron affinity and lowest ionization potential.

重离子辐照沉积的能量可以直接或间接地沿DNA链迁移，从而使得DNA分子上相对较弱或亲电性较强的化学键优先断裂。

The sensitive sites are just the bonds of highest electron affinity and lowest ionization potential. Formation of the sites results from the interaction between several nearby nucleotides. So, the sensitive sites should be a piece of DNA sequence.

敏感位点即这些相对较弱或亲电性较强的化学键，而这种化学键的产生是与敏感位点邻近的几个核苷酸相互作用的结果，即敏感位点应该是一段DNA序列。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。