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平衡浓度

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The relation of interfacial adsorption equilibrium in the solution system was respectively tested and calculated with Gibbs equation and dynamic method .The conclusion showed that (1) the experiment result of dynamic method with was highly in coordination with the value which from theoretical calculation.(2) The surfactant molecule was in arrangement of monomolecular layer at the gas-liquid interface.

用吊环法测定了十二烷基硫酸钠水溶液不同浓度与其界面张力的关系,拟合得到的回归方程为σ=-0.9523 ln ~2C-24.534 ln C-81.411,同时还测得其临界胶束浓度值CMC为6.5×10~(-3M,运用吉布斯等温方程和动态法分别计算和测定了该溶液系统的界面吸附平衡关系,结论表明:(1)动态法测定结果基本吻合吉布斯方程的理论计算;(2)表面活性剂分子在气—液两相界面是以单分子层形式定向有序排列的。

The tensile strength of CPE vulcanizates modified by in situ formed NaAA and LiAA is more than 30MPa and 28MPa, respectively.

原位合成丙烯酸盐改性CPE硫化胶在电解质水溶液中的吸水膨胀率比在去离子水中低得多,浓度越高这种效应就越强烈;温度提高可使硫化胶的吸水膨胀速度提高,在常温到60℃之间,吸水膨胀率随着温度的提高而增大,但超过60℃平衡吸水膨胀率则随着温度的提高而降低;硫化胶的吸水膨胀过程并不是单一的菲克扩散,其中还包括聚丙烯酸盐和橡胶分子链的松弛。

The levels of total protein, albumin, pre-albumin, transferring, nitrogen balance and complications were compared between the two groups.

比较两组患者血清总蛋白、白蛋白、前白蛋白、转铁蛋白的浓度和氮平衡及术后并发症的发生情况。

Finally it was found that the present of Oligochaetes not only brought better characteristics of the sludge such as good settleabilily, but also minished the membrane fouling greatly, and did not affect the effluent quality. And most important of all, in the case of almost no sludge production discharged, MLSS could be kept nearly 4000mg/L in more than 40 days when Oligochaete was present, which meant that there was no sludge production in the process.

同时,试验还发现大量蠕虫的存在,对出水水质的影响不大,但能够改善污泥特性,减缓动态膜污染,污泥浓度能自平衡于4000mg/L左右;并在近40天内,在没有排泥的情况下,无污泥量的增加,即实现了减量剩余污泥排放。

They avoid heavy salt loads through a combination of selective accumulation of ions, ion compartmentalization, salt excretion and salt exclusion, accumulation or synthesis compatible solutes which are mainly pinitol and mannitol for maintaining osmotic balance, and promotion of antioxidative to scavenge reactive oxygen species.

红树植物具有盐腺、叶片肉质化等形态特征,通过离子选择性积累、盐分区域化、泌盐和拒盐等机制降低体内的盐分浓度,积累或合成渗透调节物质来维持渗透平衡,增强抗氧化系统以清除活性氧。

The non linear regression applied to relation of the proton change number of acid with the proton concentration may improve the precision of pKa determination.

它首先牵涉到有机酸在溶剂中的电离形式[1],然后是电离平衡常数中活度系数的测定[2],再者是非水质子溶剂或有机-水溶液中质子浓度的精确测定。

Calculate the concentration of PEP at 25 C, assuming that the pyruvate kinase reaction is at equilibrium in the cell.

计算25℃时PEP的浓度,假设细胞中丙酮酸激酶的反应在细胞中处于平衡。

This dissertation involves the study of the growth dynamics of colloidal particles under unequilibrium and irreversibility condition. Firstly, it is of interest to investigate whether the ideal diffusion or reaction-limited aggregation universal behavior can be observed for the initially polydisperse practical system of basic yttrium carbonate as well. The fractal structure of basic yttrium carbonate aggregate cluster was observed using transmission eletron microscopy. The aggregation kinetics of basic yttrium carbonate colloids was studed using dynamic 1ight-scattering techniques. At 1.00mol/l NaCl solution the fast diffusion-limited aggregation behavior was observed with an increase in the aggregate size over time described by a power law. The aggregates are characterized by a fractal dimension D=1.82. The disordered and ramified cluster is consisted of primary colloidal particles and tenuous and more open. These are in good agreement with those observed for other colloidal system such as colloidal gold (1.86), silica (1.85) and polystyrene latex (1.82) in diffusion-limited aggregation from the static and dynamic light scattering by Lin. Therefore ideal diffusion-limited aggregation behavior can be observed in practical polydisperse system as well. Smoluchwski and fractal theories were used to obtain the aggregation rate constant for initially polydisperse system for the first time.

本论文研究胶粒的非平衡不可逆聚集动态学,分为两个部分,第一部分是通过实验研究一个新的初始多分散的碱式碳酸钇胶粒实际体系中,聚集标度性质的普适性,即使用透射电子显微技术观测聚集粒子簇的分形结构,使用动态激光光散射研究碱式碳酸钇胶粒的聚集动力学,胶粒带电而产生静电排斥作用使得碱式碳酸钇胶粒处于稳定状态,当加入电解质NaCl溶液时,碱式碳酸钇胶粒间的Debye-Hückel屏蔽距离缩短,从而降低静电排斥能垒,引起胶粒发生不可逆聚集,加入电解质NaCl的浓度为1.00mol/l时,碱式碳酸钇胶粒进行快速聚集,经历扩散控制聚集机理,形成结构疏松、更为开放的分形聚集粒子簇,其分形维数为1.82,碱式碳酸钇胶粒聚集增长动力学遵循幂函数增长规律,与Lin等使用静态激光光散射和动态激光光散射测量硅胶(1.85)、金胶(1.86)和聚苯乙烯胶乳(1.82)在扩散控制聚集状态形成聚集粒子簇的分形维数值以及粒子簇聚集增长的动力学规律相一致,表明胶粒聚集标度性质的普适性质在初始多分散的实际体系中也是存在的,首次由动态激光光散射的实验数据得到初始多分散胶粒分形粒子簇的聚集速率常数,并且其值与Smoluchowski聚集速率理论预期相符。

This process, which tends to equalise the saltiness of the two solutions, is called osmosis.

这个过程能平衡薄膜两端的盐浓度,学名为渗透作用。

On the other hand, ionic diffusion may cause deviation of defect concentration from its stoichiometric equilibrium value.

另一方面,离子扩散可能导致缺陷浓度在平衡位置的偏离。

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客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。

Do not 'inflate' your achievements and/or qualifications or skills .

不要 '夸大' 你的业绩或成果,条件或者技能。