查询词典 ionization

The anisole is studied by using multiphoton ionization technique and time-of-flight mass spectrum under the radiation of the 355 nm laser.

在355 nm激光作用下，利用多光子电离技术结合飞行时间质谱对苯甲醚分子进行了研究。

Koopmans theorem is an approximation in molecular orbital theory , such as density functional theory , or Hartree-Fock theory, in which the first ionization energy of a molecule is equal to the energy of the highest occupied molecular orbital, and the electron affinity is the negative of the energy of the lowest unoccupied, i.e.

如同密度泛函理论或者Hartree－Fock理论，分子轨道理论中常用到的Koopmans 定理也是一种近似。

This new calculation method has only one parameter for calculating ionization potentials of polycyclic aromatic hydrocarbon.

用这种新方法估算多环芳香烃类化合物的电离能，所用参数少且为分子结构性参数，稳定可靠，计算简便，结果较满意。

We calculate the vertical and adiabatic ionization energies, vertical and adiabatic electron affinities of asparagine conformers.

我们计算了天冬氨酸的垂直和绝热电离能、垂直和绝热电子亲合能。

In a period, most commonly the first ionization energy increases with increasing atomic mass, while the change in electron affinity does not show a clear trend.

P14 在一个周期内，通常第一电离能随原子量的增加而增加，而电子亲和能的变化却没有明显的规律。

The evaporation fields of metal atoms in the STM configuration have been calculated on the base of the binding energy of the atom on the tip, the total ionization energy of the atom, surface work function, the atomic radius and tip-sample distance.

本文的理论计算表明所需的外加电场强度决定于针尖原子的结合能，原子总的离化能，表面功函数，原子直径以及针尖和样品间距等。

Firstly, research the response of the stainless steel ball-shaped ionization chamber by experimental methods.

本文的主要研究工作有3个部分，第一部分是对不锈钢球形电离室响应进行实验研究。

At first the energy of the microwave will energized the argon to be ionization, and the generated heat make the sulfur volatilizing into bivalency sulfur or dipolymer sulfur high pressure steam. The molecule transition will happen under the microwave energization, and the visible light will be emitted when the sulfur states change into the low energy level. The spectra of the plasma lamp is nearly centering at the visible lights, and there are very little ultraviolet and infrared spectrum, the Fig 3 shows the spectra of the sun and the plasma lamp from which we can see the spectrum character clearly.

微波能量首先激励氩气使其电离，产生的热量使硫挥发成为二价硫分子或二聚物高压蒸汽，在微能量的激励下使它形成分子跃迁，当返回到较低能级的状态时以连续光谱的形式放射出光线，它的光谱基本上集中在可见光，红外线和紫外线的辐射量很少，（图3）硫的放射光谱和太阳光谱的比较图片，可以很清晰地表达这一特性。

If its energy is larger, it may impart energy to atomic electrons as described by the Bohr theory, causing excitation of electrons to higher energy states or producing ionization, with subsequent emission of light.

果其能量更大，它可以按照波尔理论把能量传递给原子的电子，使电子激发到高能态或电离，并伴随发光现象。

Through comparing the Ar (e,3e) double ionization experimental results at low collision energy with the theoretical calculation based on the first Born approximation which include the first order mechanisms SO and TS1, the symmetry breaking about the direction of the momentum transfer shows that the non-first order effects (such as two-step 2 mechanism) play an important role.

通过比较Ar在低碰撞能量下的(e ，3e)双电离实验结果和基于包含一次作用机制SO和TS1的一阶波恩近似的理论计算结果，表明在动量转移方向上对称性的破坏显示非一次效应(例如二型两步作用机制)起非常重要的作用。

Who? I never heard of him, Paul said, before asking teammate James Posey if he had heard of him.

赛后，科比说，他一直都是一名非常出色的射手，今天他打得很棒。

When I joined the company, I rotated around the different sections.

我加入这个公司时，轮换过几个不同的部门。