查询词典 cationic

The product is used in producing new generation of bactericide and cationic surfactant with powerful bactericidal capacity, good compatibility, wide material source and low cost.

用该产品生产的新一代杀菌剂、阳离子表面活性剂，具有更强的杀菌能力和更优越的配伍性能，且原料来源广泛，价格低廉。

We adjust the appropriate bivalence cationic concentration, on the concentration of a Mg〓 or Ni 〓, to extend the supercoils of plasmid DNA pBR322 into rings.

采用改进的蒸发液滴中流体毛细流动法，用于展开和固定适于AFM研究的大环状DNA。

Objective To investigate the feasibility of gene transfection of bone marrow mesenchymal stem cell by cationic lipid.

目的 探讨阳离子脂转染方法在骨髓基质干细胞基因转染中的应用。

The properties of the system of borate surfactant and cationic surfactant have been investigated and parameters of molecular interaction were calculated .

并计算了混合胶团的组成及正负离子表面活性剂的相互作用参数，用量子化学方法计算了N_xB和N_xOB的结构性能规律。

Firstly, quantum chemical method was employed to investigate the mechanism of cationic ring-opening polymerization of tetrahydrofuran and butylene oxide.

本文首先应用量子化学方法分别探讨了四氢呋喃和环氧丁烷的阳离子开环聚合反应机理。

The mechanism of ring-opening cationic polymerization reaction of tetrahydrofuran and butylene oxide was analyzed on the basis of electronic microstructures by using frontier orbitaltheory.

求取了四氢呋喃和环氧丁烷单体与仲氧鎓离子反应的过渡态，并根据频率分析和内禀反应坐标计算对过渡态的合理性进行了确认。

In this thesis, the mechanism of endogenetic ring forming reaction in the cationic polymerization of THF、 butylene oxide and ethylene oxide was investigated.

研究结果表明，环氧乙烷比四氢呋喃更容易发生分子内尾咬、扩环反应。

In this disseration, the cationic ring open-polymerization mechanism of THF、 butylene oxide and ethylene oxide were studied on the basis of electronic microstructures by using quantum chemicl method.

本文选取四氢呋喃、环氧丁烷和环氧乙烷的阳离子开环聚合为研究对象，运用量子化学方法从微观层次上对烷氧基化开环聚合过程进行了较为全面的研究。

The purpose of this study is to covalently modify adenoviral capsid with chitosan, a cationic and natural polymer.

本篇研究，我们利用一个正电性的天然高分子几丁聚醣来对腺病毒外壳进行共价性的修饰。

But when the trimanganese tetrathiolated compound having a semicubic structure reacts with the cationic carbyne complexes 1 and 2, only some single-metal carbene complexes are isolated.

但当我们使用具有半立方烷结构的钼锰羰基化合物分别与阳离子卡拜络合物1和2反应时，只分离得到了一些单金属卡宾络合物。

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。