阳离子的

The embassy will be downgraded to Office of the charge ' d' affaires.

残余负电荷被链间阳离子所中和，这些阳离子也起将链联系到一起的作用。

The interactions among the three active sites---N3, 04 and 05 in the most stable conformer of glycine and the three mono-value cations--~ Li~ and Na~ are investigated at the R0B3P86/6-3 1 G* level. Their relative binding strength and the binding order are compared and analyzed when the same active site reacts with three different cations or the same cation reacts with three different active sites, respectively.

利用限制性的DFT方法和6-31G基组函数，考察了甘氨酸的最稳定构象中的三个活性位：N3、O4和O5与单价阳离子H~+、Li~+和Na~+相互作用的情况，比较分析了三活性位与同一阳离子相互作用时的相对强弱和同一活性位与三个不同阳离子作用时的成键顺序。

The cationic guar was synthesized and the rheological behavior of aqueous solutions of CG in the presence of sodium dodecyl sulfate was studied in detail.

合成了阳离子瓜尔胶，研究了阳离子瓜儿胶水溶液在十二烷基硫酸钠存在条件下的流变行为。

The results showed that the amounts of base cations leached from calcareous soils and coastal solonchak were lower than the cation exchange capacity and the releasing amounts of Al3+ being lower than 0.40mmol·kg-1 all the way under the treatment of simulated acid rain with each pH value from 2.5 to 5.6,so the H+ buffering...

结果表明，石灰土和滨海盐土的阳离子淋溶量低于阳离子交换量，土壤主要处于阳离子交换缓冲范围和碳酸盐-硅酸盐缓冲范围，Al释放量一般低于0.40mmol·kg~(-1)，铁铝土纲系列土壤在阳离子释放总量超过阳离子交换量后，淋溶液pH值急剧下降，此时Al淋溶量明显增加，质子缓冲转向Al缓冲范围，其释放量决定于土壤富铁铝化程度的高低和活性Al含量的多少，紫色土在低pH模拟酸雨淋溶下，由于含大量硅铝率较高的易风化原生或次生矿物，盐基释放量高于CEC，但Al释放量未明显增加，淋溶液pH也较稳定，土壤尚处于矿物风化为主的硅酸盐缓冲范围。

The grafting rate and surface charge density of the pulp were also influenced by the reaction temperature, they increased from 20℃ to 50℃ and reached the maximum value at 50℃.

在浆浓较低时，随着浆浓的提高，接枝率和阳离子表面电荷密度提高，当浆浓超过11%时，接枝率和阳离子表面电荷密度下降。

The acrylic fabric was spray sizing with a manual sprayer, then jet printing with cationic dye inks and steaming. The color fastness of and product to soaping is good. The cationic dyeable polyester fiber was dip-dyed with the cationic dye inks and the fastness to soaping reaches grade 3 or more.

为了提高腈纶织物的打印质量，可用元明粉及浆料进行前处理，然后用阳离子染料墨水喷射印花，再经过汽蒸、洗浮色等后处理，可获得色彩特别鲜艳的产品；用阳离子染料墨水对阳离子染料可染涤纶纤维进行浸染，牢度都在3级或3级以上。

Experiments are conducted on the effect of different types and different molecular structures of polymers on HPAM removal existed in solution or sewage. It is found out that only cationic polymer has a better removal effect of HPAM among the non-ion, amphoteric ion and hydrophobical cation polymers, especially the DMDAAC cationic polymer has an optimal result. The removal capacity to HPAM can be further improved by using appropriate molecular weight and cationic capacity and gas floatation technique.

试验研究了不同类别及分子结构的聚合物对溶液或污水中HPAM的去除效果，发现非离子、两性离子、疏水改性阳离子聚合物对HPAM无去除作用，只有阳离子聚合物去除效果较好，其中尤以DMDAAC系列阳离子聚合物效果最优，而适当的分子量和阳离子化度以及气浮技术均可以进一步提高其对HPAM的去除率。

The paper copolymerizes cationic polyacrylamide by aqueous solution copolymerization copolymerization and inverse emulsion copolymerization, and determines the art of it. On the base of determination, makes experiments on the conditions for copolymerization of cationic polyacrylamide, and attain wastewater's flocculant with perfect performances.

本文分别用水溶液共聚法和反相乳液聚合法合成了阳离子聚丙烯酰胺，并对合成的工艺条件进行了探索，在此基础上，对阳离子聚丙烯酰胺合成不同的条件进行了应用实验，筛选出了性能较好污水处理剂阳离子聚丙烯酰胺。

The high cationic charge density on the nanosphere surface is created by incorporating a cationic conditioning agent into the solid hydrophobic matrix of the nanospheres, by incorporating a cationic charge 'booster' in the moisture sensitive microsphere matrix, or by using a cationic conditioning agent in the nanosphere matrix in conjunction with a cationic charge 'booster' in the microsphere matrix.

通过将阳离子带电&助剂&引入到水分敏感性微球基质中，或通过将纳米球基质中的阳离子调理剂和微球基质中的阳离子带电&助剂&联用，将阳离子调理剂引入到纳米球的疏水性基质中产生纳米球表面的高阳离子密度。

The results show that methyl group strengthens the electrostatic attractions, but reduces the H-bonds effect, while benzyl group can make both electrostatic and H-bond effects strong. The theoretical results are identical with the results of the collectors flotation tests. Collecting ability of the quaternary amine salts is better than that of dodecylamine and dodecyl bimethyl amine. The quaternary amine salt containing benzyl group performs best, and it is little affected by pH value. Substitution of N-containing polar group in amine collectors can impact the aluminosulicate minerals flotation.

研究结果表明：甲基的取代可增强阳离子的静电作用能力，同时，削弱它与矿物表面之间的氢键作用；苄基的取代不仅增强药剂的静电效应，而且增加氢键的结合能力；理论分析结果与浮选试验结果一致，季铵盐的浮选能力较伯胺与叔胺的强，连有苄基的季铵盐对铝硅酸盐矿物的捕收能力最强，且受pH值影响小。

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。