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- A correlation equation of solubility has been proposed by using Kirkwood-Buff s solution theory and the Flory-Huggins activity coefficient equations. 运用Kirkwood-Buff溶液理论和Flory-Huggins活度系数方程,建立了溶解度关联方程。
- Keywords vapor-liquid equilibria;tetraethylene glycol;virial equation;activity coefficient equation; 汽液平衡;四甘醇;维里方程;活度系数方程;
- activity coefficient equation 活度系数方程
- The PR equation of state by the Huron-Vidal mixing rule with the NRTL activity coefficient model gave satisfactory correlation and prediction results. 这些结果与建议,可提供相关工业界使用超临界流体清洗或乾燥之参考。
- The distribution coefficient equation is still valid for any value of n. 对任一级n,分配系数关系式仍然是成立的。
- Theory of ionic interaction and activity coefficient of strong electrolyte. 离子相互作用和强电解质活度系数理论。
- Insulation material have characteristic such as by heat-transfer coefficient equation, chart or table related with temperature variety. 保温材料的特性例如传热系数相等、温度变化相关的图表或目录。
- Activity coefficient Number expressing the ratio of a substance's chemical activity to its molar concentration. 活度系数:化学术语,活度系数指物质的化学活度对其浓度之比。
- The results indicate that the activity coefficient of Cu increases and of Fe decreases with the increase of C content. 结果表明,随着体系中碳量的增加,相应地Cu活度系数增加,而Fe活度系数减少。
- From the result, it is suggested to use different type of UNIFAC equation to estimast activivity coefficient in the predition of flash point for different mixture type. 研究结果显示,针对不同的混合物质,建议使用不同类型的UNIFAC方程式估算其活性系数,使其可以真实的反应混合物的性质,并透过预测闪火点模型,准确的估算其闪火点值。
- It shows that the calculation result of the modified method based on activity coefficient is not as good as that of the PRSV EOS. 结果表明:对于极性较强的体系,活度系数法虽然也能计算高压下的GLE,但计算效果不如状态方程法;
- Model UNIFAC is one of the most widely used model in reckoning the compo-nent activity coefficient in nonelectrolyte solution.It is also used in engineering designing calculation. UNIFAC模型目前已成为推算非电解质溶液中组分活度系数应用最广泛的模型,并且用于工程设计计算。
- The model parameters of liquid activity coefficient were correlated by the least square method.The calculated boiling points were in good agrement with the experimental data. 用最小二乘法求出了该系统的液相活反系数模型参数,由模型参数推算的泡点温度与实验值能较好的吻合。
- The amended triple diagonal matrix algorithm and the feasible method of solving fugacity coefficient and activity coefficient were used to calculate the column. 针对炼油厂含硫污水汽提塔的特点,修正三对角矩阵算法,利用适当的逸度系数及活度系数求解,模拟计算结果与实际基本相符。
- non -linear differential coefficient equation 非线性微分方程
- Applying the Pitzer equation of the activity coefficients of 1-1 type electrolyte to non-aqueous mixed solvents,each parameter of the equation was obtained by the method of least squares. 目前文献报道含水混合溶剂中的电解质活度系数较多,但非水混合溶剂中电解质活度系数报道较少。
- differential coefficient equation group 微分方程组
- The orthogonality relationship is applied to the treatment of boundary conditions to decouple the coefficient equations, and the explicit solutions are obtained. 并将正交关系应用于可对角化边界条件的处理,实现了求解待定系数方程组的解耦,求得问题的显式封闭解。
- The plasma and erythrocyte riboflavin and its derivatives (FMN and FAD) were analysed with HPLC method. The blood glutathione reductase activity coefficient (BGRAC), erythrocyte GSH concentration and urinary riboflavin excretion were also measured. 用高效液相色谱法测定血浆与红细胞核黄素及衍生物浓度的动态变化,同时测定核黄素尿排量、全血谷胱甘肽还原酶活性系数(BGRAC)、红细胞还原性谷胱甘肽浓度及血浆丙二醛浓度变化。