电离

According to the damage phenomena at the edge of electrodes, the thermal injection and relaxation characteristics of majority carriers were discussed. An injection model induced by minority carriers was proposed, which emphasized the surface field enhancement effect by non-equilibrium carrier channel, possibly leading to the ionization of the ambient gas above the filament channel.

结合电极边缘细丝状的破坏现象，讨论了电极边缘的热注入和内部多数载流子的弛豫特性，提出了少子引导的注入模型，强调了非平衡载流子通道引起的表面电场增强效应，可引起外部气体电离形成电离通道。

The photoionization mass spectrum and thephotoionization efficiency curves of the fragment ions are measured.

通过测量各离子的光电离效率曲线，获得了该分子的电离势和所有碎片离子的出现势。

Methane, oxygen and H_2O molecules are activated, ionized and dissociated into active particles such as CH_3~+, O~-, H_2O~+, CH_3, CH_2, CH, H,OH and O, by nonelastic collision with high energy electrons. The particles react with each other in the reactor to synthesize chemically products including gaseous oxy-hydrocarbons.We study the rule of reaction by changing electrical parameter, gas flow etc. Study the conversion of methane, selectivity of gaseous hydrocarbons and yield of methanol under different reaction condition.

针对常规甲烷催化转化和氧化偶联制备含氧化合物的问题，遵循国际化学科学研究前沿"绿色化学"原则，采用自然界存在丰富的CH_4、H_2O和O_2为原料，在绿色友好的常温大气压无任何催化剂的条件下，采用强电场电离放电加速电子及其激励气体分子的极端物理手段，在反应腔体内进行无任何环境污染的非平衡等离子体化学反应，将气体分子激发、电离、离解成CH_4~+、CH_3~+、CH_4~·、H_2O~+、H_2O~·、O_2~+、O(~1D)等活性粒子，生成气态烃及含氧碳氢化合物，整个反应过程实现零污染、零副产品。

The exact effective nuclear charge numbers have been defined andcalculated with the mean radius of the initial orbital of the active electron toconsider the combined -effects of relativity and screening in an actualtranstition calculation . The electron impact ionisation cross sections and thecorresponding ionisation rate coefficients of Li like ions 〓、〓、〓、〓and〓 have been calculated by using our calculated effective nuclearcharge numbers.

我们考虑并修正了原始理论中对屏蔽常数物理意义的不正确定义和算法，更精确考虑了其它电子对被电离电子的屏蔽效应以及相对论收缩对有效核电荷数的影响，得到了更可靠的有效核电荷数，并给出了更好的电离截面结果。

In the whole process of photoionization,it can be seen that different photoionization occurs in different delay time.

在整个光电离过程中，我们可以看到在不同的延迟时间条件下会有不同性质的光电离发生。

The course of photoionization and three basic photoionization methods are described in chapter two.

第二章简单综述了光电离过程和三种研究光电离的基本方法。

More accurate results were obtained by using the new approach to calculate resonance structure and photoionization cross section.

本文使用多体微扰理论对锰原子及其离子光电离过程中光电离截面和共振结构进行了全面的理论研究和计算。

The mechanisms of double photoionization of these molecules are discussed based on comparison of our experimental results with those predicted theoretically.

总的来说我们实验测得的双电离能与理论计算获得的绝热双电离能比较吻合。

It is shown that the parameterized model potential method of included polarization correction is effective to calculate photoionization cross sections.

使用参数形式的极化模型势计算光电离截面是一种有效的方法。标签光电离截面模型势波函数 photoionization cross section model potential wave function

In aqueous solution, PIMA is in an expanded state while PTMA forms particles that tend to dissociate by increasing pH and decreasing concentration.

在pH为2.1，6.5，10.5和11.8溶液中，PIMA的电离度分别为11％，53％，87％和100％；PTMA电离度分别为8％，55％，97％和100％。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。