查询词典 cationic

The results show that the decay of retinol and retinyl acetate are much faster in anionic micelles than that in cationic micelles and neutral micelles(TX-100), which indicate that the decay is carried out by the protonation of retinol or retinyl acetate first, then one molecular water or acetic acid is lost to produce the carbonium ion, which release the proton followed to generate the anhydroretinol.

数据显示，维生素A及其乙酸酯在阴离子胶束溶液SDS中的衰变速度要远大于在阳离子胶束溶液CTAB和中性胶束溶液TX-100中的衰变速度。

The cationic complexes of transition metals serve as catalytically active species for olefin polymerization. Their structures and properties directly influence the resulting polymers in terms of microstructure and function.

阳离子型金属有机化合物是催化烯烃聚合反应的活性物种，其结构与性质直接影响所得聚合物的微观结构和性能，具有重要的研究价值。

Objective: To set up a new method for determination of cationic surfactants in water samples of environment.

目的：建立一种简便快速的环境水样中阳离子表面活性剂测定新方法。

In this work, we studied two types of catalysts, the neutral and cationic +BF4

在此研究工作里，我们探讨两种类型的催化剂，一为中性金属错合物

Recent progress in synthesis of cationic polymers is reviewed in this paper.

对于阳离子聚合物的制备，分成两部分进行了简单综述。

The research progress on the characterization of cationic starch was also discussed.

同时介绍了阳离子化淀粉应用性能表征的研究进展。

Cationic surfactants can also add there is a variety of ways.

阳离子表面活性剂的加入也可有各种方式。

The cationic polyacrylamide, which has been widely used in water treating and separation process of solid and liquid.

CPAM被广泛应用在各种水处理和固液分离过程中。

OBJECTIVE To study the effect of the lipid compositions on cellular uptake and gene transfection mediated by cationic liposomes.

目的研究阳离子脂质体膜的组分对细胞摄取和基因转染的影响。

Objective:To investigate the efficiency of cationic liposome in mediating gene transfer.

摘要］目的：研究阳离子脂质体介导体内外基因转移的效率。

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。