阴极的

Based on the similarity of structure between the antifluoride and alkali antimonide, the possible transitions taking place in the Brillouin zone corresponding to the structure in the optical spectra are identified for Na_2KSb,Css_3Sb and K_2CsSb cathode.

利用反荧石结构和其结构的相似性，确定了Na2KSb、Cs3Sb和K2CsSb阴极在光谱结构上对应布里渊区中发生的光学跃迁，发现多碱阴极的跃迁更接近晶态，而Cs3Sb和K2CsSb阴极和非晶态的非常类似，在Na2KSb中出现的来自Δ、Σ方向跃迁形成的极大峰并不出现在Cs3Sb和K2CsSb。

The results show that, there is no obvious variation of the influence of different collector bar installations on the cathode potential drop, but the current distribution will be relatively evener when the cathode collector bar is horizontally installed.

结果表明，不同的阴极导杆安装方法对导流槽阴极的总电位降大小没有明显影响，但是水平阴极导杆安装更有利于阴极表面电流密度的均匀分布。

Especially, cathode temperature has a strong influence on the discharge property of cathode fall region via its influence on electron emission process. This is one of the most typical properties of hot cathode glow discharge.

特别是阴极温度对放电特性的影响，它是通过热阴极的温度对热电子发射过程的影响来实现的，也是区别于常规冷阴极辉光放电的一个重要放电特征。

It can be seen form the results of the experiment that the method oftwo-wavelength pyrometry can be used to measure the rod-like cathode temperature.But this method has a big difficulty which is that it is difficult to separate the radiationflux due to cathode reflecting from the total radiation flux in the experiment.

在实验中，我们测出了不同情况下的阴极温度分布；实验结果显示，双波长高温测量方法能很好地测量棒状阴极的温度，但是双波长高温测量方法存在着一个的很大困难是：在实验中，很难将阴极表面反射的辐射通量从总的辐射通量中分离出来。

Using the theoretical knowledge of spectral response and property evaluation way, the on-line measurement results are analyzed and some conclusions are obtained. The properties of domestic and foreign NEA phocathodes are compared, and the reasons causing low performance of domestic NEA photocathodes are discussed.

第四章首先介绍了评价NEA光电阴极特性的参量，包括参量的意义、测量方法及当前NEA光电阴极的参量水平，在此基础上阐述了NEA光电阴极性能评估的实现方法和途径，最后简介了NEA光电阴极性能评估实验系统的设计和研制。

A hypothetical drained cell model retrofitted from a 160kA Hall-Heroult cell was set up to calculate the current distribution in the cathode when the anode bottom and cathode top surfaces were declivous. Two half anode-cathode slice thermo-electrical models with the collector bars installed slopingly or horizontally were adopted to calculate the potential drop and electricity distribution of the cathode.

摘 要：将某厂现有的160kA Hall-Heroult铝电解槽改造成导流槽后，在阴极上表面和阳极底面呈斜坡状的条件下，计算了采用不同阴极导杆安装方式时阴极的电位和电流分布，即通过建立导流槽内部从阳极到阴极的一个半切片电热场模型，用有限元法分别对水平和平行于阴极斜坡两种不同导流槽阴极导杆的安装方式下阴极电位和表面电流密度分布进行了计算。

Two half anode cathode slice thermo electrical models with the collector bars installed slopingly or horizontally were adopted to calculate the potential drop and electricity distribution of the cathode .

结果表明，不同的阴极导杆安装方法对导流槽阴极的总电位降大小没有明显影响，但是水平阴极导杆安装更有利于阴极表面电流密度的均匀分布。

The objective of this part is to investigate the effects of the location of the gas-liquid interface along the channel direction under various cathode humidification conditions and gas diffusion layer porosities in the conventional flow field.

主要是探讨在阴极的流道及扩散层中，阴极的增湿情况以及阴极气体扩散层的孔隙度改变时对汽液界面位置的影响。

Models of electron emission mechanism are established concerning metal and carbon fiber cathodes.

建立了金属阴极和碳纤维阴极的电子发射机制模型，发射后的阴极和碳纤维阴极的微观照片证实了模型的正确性。

Also the discharge current and gas pressure are both high. The study of the cathode properties such as its material, reaction with gases in a PCVD ambient, temperature, surface state, etc, comes to the conclusions which are much different with that of the cold cathode glow discharge.

由此导致了对于阴极材料的选择、阴极在PCVD气氛中的反应、阴极的工作温度、表面状态等涉及到阴极性质的研究工作，均得到有别于常规冷阴极辉光放电的具有热阴极特征的结论。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。