阳离子的

The cationic polyelectrolyte P (AM-DMDAAC with a certain scope of molecule weight was synthesized by controlling synthesis conditions. P is a kind of functional additive for carbon paper designed especially for proton exchange membrane fuel cell. The kinetic behavior of copolymerization of AM and DMDAAC initiated by Na2S2O8-Na2SO3 redox system in aqueous solution was studied.

通过控制合成工艺条件，合成了具有一定相对分子质量范围的阳离子聚电解质，作为质子交换膜燃料电池专用碳纸功能性添加剂，研究了过硫酸钾亚硫酸钠氧化还原引发体系水溶液聚合的动力学行为，得到的速率方程为：Rp=Kp［K2S2O8］0.55［Na2SO3］0.56［M］1.14。

In this paper,the drag-reducing surfactant solution flows in a fully developed turbulent channel flow have been analyzed experimentally using Phase Doppler Anemometry and thermocouples in order to study the temperature fluctuations and heat transfer characteristics on the drag-reducing and heat transfer reduction phenomena of the surfactant solution flows.

该文针对在水中添加阳离子表面活性剂产生的减阻作用同时降低传热性能的现象，应用相位多普勒激光测量系统和热电偶温度测量系统对二维流道内表面活性剂减阻流体热边界层内的湍流温度脉动以及传热特性进行了实验研究。

The electro-oxidation in anion exchange membrane system can be carried out in larger range of anolyte acid but cation exchange membrane system only for over 0.75mol/L.

发现阴离子膜电解体系可以在较大的阳极液酸度范围内进行铈的电解氧化，而阳离子膜电解体系则必须在大于0.75mol／L的酸度条件下进行。

The formation of Fe—O—Fe antiphase boundaries are suppressed by the doping Al due to the improvement of the cation ordering, and the high field magnetoresistance that roots in spin-dependent scattering at the antiphase boundaries is reduced.

阳离子有序度的提高使来源于自旋相关电子在反相边界处散射的高场磁电阻明显降低，导致了样品的磁电阻在x=0.15时达到了最大值。

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。

What the lysine does, Dougherty and colleagues report online this week in Nature, is change the shape of the brain receptor's box, effectively making its negative charge more accessible to nicotine--a situation known as a cation-pi interaction.

Dougherty 他们在这个星期的 Nature 网站上报道说，它能够改变大脑受体"口袋"的形状，有效地使其负电荷更好与尼古丁相作用，就是所谓的阳离子—π作用( a cation-pi interaction )。

The formation of a cation depletion layer is a key factor to obtain large SON in glass.

阳离子耗尽层的形成是获得大二阶光学非线性的一个关键因素，需要满足一定的条件。

The adsorption characteristics of high charge density cationic polyamine on pulp fibers were studied in this paper.

摘 要：通过测量纸浆Zeta电位及聚合电解质的吸附量，研究了高电荷密度阳离子聚胺在纸浆纤维上的吸附特性，并将吸附聚胺后的纤维抄纸进行纸浆性能分析。

The nature and strength of the cation-π interactions between and toluene, p -cresol, or Me-indole were studied in terms of the topological properties of molecular charge density and binding energy decomposition.

本文通过电荷密度的拓扑性质和结合能的能量分解两个方面研究了NH4+与甲苯、对甲基苯酚以及甲基吲哚间阳离子-π相互作用的大小及其作用本质。

This paper deals with the preparation and application of a cationic diamide sizing agent with softening function and discusses some factors affecting the sizing degree and softness .

叙述了一种具有柔软作用的阳离子双酰胺类施胶剂的制备及应用，讨论了多种因素对施胶度及柔软性的影响。

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。