离子结构

It can be proposed that the chargecompensation effect between Co~(2+) and Ti~(4+) ions in raw materials make them tendto co-occupy uniformly B site in perovskite both as the forms of +3 valence, which isresponsible for the lower temperature synthesis.

分析认为，原料中的Co~(2+)和Ti~(4+)离子通过电荷补偿作用(charge compensation effect，CCE)使二者均易于形成Co~(3+)和Ti~(3+)离子去共同占据ABO_3型钙钛矿结构的B位，这种电荷补偿作用导致样品具有较低的合成温度。

The glass transition temperature of the polymers carrying crown ethers as side groups increased when alkali metal ions were added, because the oxygen-metal coordination will lead to the polymer to have order structure.

含有冠醚侧链的高分子在加入碱金属离子后，由于冠醚与金属离子的络合作用导致高分子形成有序结构而刚性增强，其玻璃化转变温度明显提高。

In the second chapter, we first report the electronic structure study on the critical stability constants of the complexing reactions of aluminum and copper ions with a series of chelators.

在第二章中，我们首次报道了运用电子结构理论研究铝离子、铜离子和其系列螯合物结合反应的稳定常数。

Chemical nature and valence states of the dopant ions determine the structural and physical properties of ceria-based electrolytes.

掺杂离子的化学性质和离子价态决定CeO〓基电解质的结构和物理性质。

Our company is one of the earliest professional manufacturers of icon exchangers and in the lead in terms of structure, technology and quality of icon exchangers.

我公司是最早生产离子交换器的专业生产厂家之一。在离子交换器的结构、技术、质量方面均有较领先的水平。

This dissertation is concerned with the spectroscopic study of the millimeter-wave, near infrared and visible absorption spectrum of gas phase transient species.

本论文对与星际化学和大气化学密切相关的几种瞬态分子的气相吸收光谱和结构进行了研究，包括CN自由基，N_2~+离子和CS~+离子的电子振转光谱和HCBr自由基的纯转动光谱。

The crystalline defects of metallic substrate can promote the formation of multi-crystal thin films. In contrast, the films on the Si single crystal are basically amorphous; The hardness of films are mainly determined by N concentration. The highest hardnesses of Si〓N〓 and TiN films ware obtained at 1. 1 of N/Si and 0.96 of N/Ti respectively. The hardness of Si〓N〓 film decreased dramatically when the free silicon atoms present.

发现薄膜中N原子百分含量主要受氮离子束流和氮气分压的控制，随着氮离子束流和氮气分压的提高，N/Si和N/Ti原子比增加；膜的组织结构则主要受轰击离子束压和基体种类的影响，高的轰击束压可以抑制薄膜的择优取向，金属基体上的晶体缺陷使薄膜易于形成多晶，而单晶硅上的薄膜基本上为非晶态；薄膜的硬度受氮含量的影响最大。

It was also found that thecross-linking degree, the micro structure and the surface morphology of the IPN membranes was more important to proton selectivity than the amount of ionomer.

同时发现，相对于离子聚合物中离子交换位的多少，膜的交联程度、微观结构及表面形貌对质子交换膜的性能影响更大。

Perfluorinated ionomers shows superselectivity , superacidity, ion conductivity , excellent chemical and thermal stabilities as well as good mechanical properties.

本文在结构分析的基础上，讨论了全氟离子聚合物的特性，该聚合物不仅具有超选择性、超强酸性和离子导电性，而且具有优异的化学稳定性和机械力学性能。

Then we introduce theory of ion-exchange process and how to design multimode Y branch optical splitters. Lastly we do some experiment of how to fabricate the device with Li~+-Na~+ ion-exchange technology.

本文首先比较了多模功分器的种类和制作方法，介绍了离子交换的原理，然后对多模Y分支结构的多模光功分器进行设计，并对器件制作所用的Li~+-Na~+离子交换工艺进行实验研究。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。