Determination of the Ionic Association Constant of Potassium Sulfate by Means of Potassium Ion-selective Electrode

1、

Associations are more likely to occur when the partial pressure is high. Part of the reason for this lies in ionic association.

当水汽分压提高时，缔合更容易发生。其部份原因是由于离子缔合。

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2、

The results showed that the activity of ionic liquid correlated strongly with its acidity, and only acidic ionic liquid had alkylation activity.

实验表明，离子液体的催化活性与其酸强度密切相关，只有在酸性条件下，离子液体对烷基化反应才有催化活性。

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3、

The results showed that acid ionic liquids have higher activity and selectivity, stronger acidity is favorable to reaction. But for the alkylation, the acidity of ionic liquids need not very strong, appropriate acidity are help to improve the selectivity of product.

研究结果表明：酸性的离子液体具有较高的活性与选择性，较强的酸性对反应更有利，但对于烷基化反应并不需要酸性太强的离子液体，适宜的酸强度有助于提高目的产物的选择性。

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4、

AIM: To observe the effects of flunarizine hydrochloride ( FZ) on intracytoplasm calcium ionic concentration and cell activity of endothelial cell strain ( ECV-304) induced by homocysteine ( Hcy).

目的：观察盐酸氟桂嗪对同型半胱氨酸诱导的正常人脐静脉内皮细胞株（ECV-304）胞质内钙离子浓度和细胞活性的影响。方法：实验于2005-02/08在西京医院神经内科实验室完成。

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5、

The effects of protein's concentration, oil volume, pH and ionic strengths on emulsifying activity ( EA) and emulsion stability ( ES) of the Chickpea protein isolates were studied.

研究了蛋白质浓度、加油量、pH及离子强度对鹰嘴豆分离蛋白的乳化活力及乳化稳定性的影响。

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6、

In the presence of ionic liquid, the activity and stability of catalyst can increase remarkably.

在离子液体中，催化剂的催化活性和稳定性都有很大的提高。

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7、

Effect of ionic liquids on the activity and conformation of PCL.

离子液体对脂肪酶PCL活力和结构的影响。

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8、

Groundwater Quality Evaluation Based on Ionic Strength and Ionic Activity

基于离子强度与活度的地下水质评价

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9、

A molecular thermodynamic model for the calculation of ionic mean activity coefficients in electrolyte aqueous solution is developed by treating the ion-ion electrostatic interactions with mean spherical approximation ( MSA) of all particles in the solution and other interactions with perturbation theory, respectively.

用平均球近似处理离子-离子间的静电相互作用，用微扰理论处理电解质溶液中各种粒子间的其他相互作用，建立了一个强电解质水溶液的分子热力学模型。

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10、

Dynamic determination of intracellular ionic potassium activity

细胞内钾离子活度的动态检测

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11、

Dynamic Determination of Intracellular Ionic Calcium Activity in Skeletal Muscle

骨骼肌细胞内钙离子活度的动态检测

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12、

After liquid molecule absorbed microwave, its ionizability, ionic activity and chance of molecular collision are enhanced highly, as a result the leaching rate and recovery ratio of tungsten increased highly.

液体分子吸收微波后，电离程度、离子活度和分子碰撞机率都得到提高，从而提高低品位钨精矿的浸出率，钨回收率。

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13、

Classical methods of determining the mean ionic activity coefficient of the hydrochloric acid with hydrogen electrode are Laborious. The use of glass electrode affords a fast simple method for making this measurement.

用氢电极测定HCl溶液的平均活度系数是费事的，玻璃电极的使用提供了一个快速、简便的测量方法。

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14、

The Alteration of Extracellular Calcium Ionic Activity of Cerebral Cortex and Hippocampal Neurons in Epileptiform Rats Kindled by Coriaria Lactone

马桑内酯致痫大鼠大脑皮层及海马神经元钙离子活度的变化

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15、

Application of Extended Debye H ü ckel Equation to calculation of ionic activity coefficient for dry white wine was presented in this paper.

论述广义德拜-休克尔方程在准确计算干白葡萄酒的离子活度时的应用。

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16、

From vapour pressure or mean ionic activity coefficient of electrolyte aqueous solution, the exergy of binary solution can be obtained.

提出根据溶液蒸汽压或离子平均活度系数γ±计算二元电解质水溶液（火用）值的公式。

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17、

A Novel Semi-Empirical Equation for Calculation of the Osmotic Coefficient and the Average Ionic Activity Coefficient

推算渗透系数及离子平均活度系数的新型半经验方程

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18、

Parameters are fitted to vapor pressure, density and mean ionic activity coefficient data.

参数由拟合蒸汽压、密度和离子平均活度系数数据获得。

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19、

CONCLUSION: Exhaustive exercise can result in the increases of concentrations of malondiadehyde and calcium ion and the activity of phospholipase A2, and the decrease of the activity of superoxide dismutase in myocardial mitochondria, and then lead to damages of myocardial mitochondria and myocardium;

结论：力竭运动引起心肌线粒体丙二醛、钙离子浓度及磷脂酶A2活性的升高，超氧化物歧化酶活性下降，造成心肌线粒体和心肌的损伤；

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20、

Objective: To examine the effect of measures for conservation of enzyme, reaction time, pH, substrate concentration, enzyme concentration and metal ion on enzyme activity.

目的：考察酶源保存方式、酶促反应时间、底物pH值、底物浓度、酶浓度、金属离子等因素对酶活力的影响。

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