查询词典 ionic

The nano-ionic liquid containing metal complex could be an effective catalyst for oxidative carbonylation of amines to carbamates and disubstituted ureas and for synthesis of unsymmetric ureas from amines and nitrobenzene, in which turn over frequencies exceeded 10000mol/mol/h.

以该系列纳米离子液体为催化剂高效的实现了胺类化合物催化氧化羰化制备氨基甲酸酯和二取代脲（转化频率＞10000mol/mol/h）以及胺与硝基苯通过一氧化碳羰化制备不对称脲的过程。

The sizes of ionic clusters are influenced by the radius of metal cations.

金属离子的半径大小，影响所形成的团簇离子的尺寸。

Upon the ionic deposition of natural rubber latex with coagulants.

沉积方法与凝固剂的附型剂对沉积过程有明显影响。

Based on the introduction of the basic principle and theory of the process, the influences of pH values, metal/polymer ratio, complexation of metallic species simultaneously and ionic strength on complexing process were discussed, At the same time, the effects of temperature, pressure, flow velocity and polymer concentration on ultrafiltration process were concerned, and the regeneration of polymer was also discussed briefly.

阐述了该工艺的基本原理和基本理论，讨论了pH、金属／聚合物比、同时络合多种金属离子和离子强度等因素对络合过程的作用，并分析了温度、压力、流速和聚合物浓度对超滤过程的影响，简述了影响聚合物再生的主要方面。

Based on the introduction of the basic principle and theory of the process,the influences of pH values,metal/polymer ratio, complexation of metallic species simultaneously and ionic strength on complexing process were discussed.

阐述了该工艺的基本原理和基本理论，讨论了pH、金属/聚合物比、同时络合多种金属离子和离子强度等因素对络合过程的作用，并分析了温度、压力、流速和聚合物浓度对超滤过程的影响，简述了影响聚合物再生的主要方面。

This model is also extended to predict the structural changes in nc-GaN with different covalency from BaTiO3, which promises the universality of this model in covalent-ionic nanocrystals.

说明了该模型在共价-离子晶体纳米材料体系中的普适性。

The alkylation of deuterated benzene with ethylene catalyzed by the dehydrated Cl/FeCl3 ionic liquid was investigated by GC-MS and 1H NMR.

将合成的Cl/FeCl3离子液体脱水，并采用同位素置换的方法研究了离子液体催化全氘代苯与乙烯的烷基化反应机理。

The further calculations of ionic molecular dimmers such as 〓,〓,〓 and 〓 show the reliability of the direct additive approach.

对于离子化合物二聚体〓、〓、〓、〓等体系的具体计算，也证实了&化整为零&简捷计算方法的可靠性。

This is in sharp contrast, of course, to the behavior of DNA–DNA duplexes, whose stability decreases dramatically at low ionic strength because of the required counterion shielding of the phosphate backbone.

当然，此现象截然不同与DNA-DNA二聚体的特性。由于后者的稳定性需要磷酸骨架的屏蔽，在低离子强度时，其稳定性将急剧下降。

Therefore, the effects of ionic strengthof eluents and sample concentration on the molecular weight determination of acidicpolysaccharides and neutral polysaccharides were investigated in HPGPC(Ultrahydroge〓 column) for the first time. Meanwhile, the chromatographiccondition for molecular weight determination of polysaccharides by HPGPC wasoptimized with Dextran series as standards to perform calibration plot.

为此，我们首次采用HPGPC(Ultrahydrogel〓柱)探讨了流动相的离子强度以及样品浓度对中性多糖和酸性多糖分子量测定结果的影响，并对HPGPC测定多糖分子量的条件进行了优化。

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。