离子迁移

The mobility distribution of the reduced charge polymer ions is then measured in a high resolution differential mobility analyzer.

然后采用高分辨率的差示迁移率分析仪测量电荷减少的聚合物离子的迁移率分布。

In order to complete the investigation, impersonality feasible experiment solutions and devices are designed independently to systemically investigate on activation and transfer characteristic of soil heavy metal under acid rain effect. Primary results are shown as followings:1. PH measuring results of soil solution and eluviation solution show that the ability of experimental plot the acid buffer capacity of soil is stronger under the experiment condition,there is no obvious acidification in soil which after acid rain eluviation.The result has substantial differences with that gotten by most of investigationers in similar work before.

这一结果与以往类似研究中多数研究者得到的结论存在本质区别，原因可能在于此次试验的试验条件与以往研究的试验条件不同，其中最主要一点是在本次试验中使用的土壤样品的重量比以往试验均显著增大，而且使用的是土壤结构和组成等均未经破坏的原位土，从而使入渗酸雨与承受酸雨沉降的土壤之间的比例关系更接近自然酸雨沉降过程，以此为基础得到的试验结果应该更加客观、可靠。2、酸雨对盐基离子活化迁移产生的影响勿庸置疑，但是，在盐基离子活化迁移的过程中，并没有出现预想中的重金属元素活化迁移现象，表明土壤中的重金属元素并不如理论分析的那样对酸雨沉降反应敏感。

Effects of time, water flux density, and distribution coefficients of metal ions on the migration and concentration distribution of heavy metal ions were also simulated in soil.

分析了时间、水的通量密度、金属离子的吸附分配系数对金属离子在土壤中迁移及浓度分布的影响。

The research indicated that chloride ingression is largely determined by exposure time, chloride binding, environment temperature, stress and cracks conditions, the symptoms of which could be found with the modifier of the apparent diffusion coefficient Da of chloride, in the model of concrete service life prediction.

研究表明，暴露时间、胶凝材料对氯离子的吸附作用、混凝土保护层应力和裂缝状态、环境温度等对混凝土中氯离子的迁移均有较大的影响，这些影响因素可以通过对氯离子表观扩散系数的修正来表征，将其引入使用寿命预测模型。

Has weak activation and transfer under acid rain effect and redeposition will take place during the course of their moving from surface soil to deep soil. Contrasted quality standard analysis of surface water, ground water and drinking water, these elements will not bring about negative effect to the water environment and ecological environment of soil.

进一步相态分析结果表明，受酸雨淋滤作用的影响，离子的迁移主要发生在盐基离子上，具体表现在经酸雨淋滤后表层土壤水溶态组分中盐基离子浓度降低，与此相对应的是Al离子浓度显著增高，一个直观的反映是土壤的电导率降低。

At the same time, it is tersely described the ion molecule reactions in thedrift tube and the interactions between the ion and neutral gas molecules during ion drift process.

同时，为更好的理解IMS内部的反应机理，简要介绍了迁移管内分子离子的化学反应过程以及离子在迁移过程中和分子的相互作用。

The metal ions transferred not only in the perpendicular direction but also in the horizontal direction with the flow of surface runoff and underflow.

尾砂在风化氧化过程中释放出的金属离子不仅向下迁移，也随地表径流和潜水流动在水平方向产生一定迁移。

The contribution of electrostatic interaction to the transfer volumes is predominant. The reduction in the electrostriction with increasing the concentration of salts was confirmed by the decreased hydration number.

氨基酸两性离子端基和阴阳离子间的静电作用对迁移体积的贡献是主要的，静电作用削弱了两性离子带电中心对周围水分子的电致收缩效应，造成氨基酸的理论水化数随盐溶液浓度的增加而减小。

In the second part, the current-voltage characteristics of the sensors were measured, their charge ionic mobilities were measured with polar inversion method and their ionic numbers were computed. It has found that ionization effect of some binding ions against a critical humidity took place in switchable humidity-sensitive materials, the effect is that some binding ions in materials turn into free ions when a given ambient humidity is reached called a critical humidity, avalanching conduct electricity occurs in materials.

在第二部分中，测试了高分子电阻型湿敏元件和开关型湿敏元件的伏—安特性，并用极性反转法测试了其导电离子的迁移率以及计算了相关的导电离子数目，发现了开关型湿敏元件的束缚离子的最小湿度电离效应：当环境湿度达到或者大于一特定湿度时，这一特定湿度称之为最小湿度，材料中某些束缚离子才电离成自由的导电离子，形成雪崩式导电。

Take only half hour to complete and the gate has a 0.75mm grid spacing. Meanwhile, the influence of the voltage on the ion gate was studied. The drift tube was easily machined and assembled.

在仪器的关键部件――离子门，研制了一种成本低，制作工艺简单的离子门，该离子门相邻金属丝间距为0.75mm，同时考查了离子门处电压特性对迁移谱的影响。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

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。