离子

The obtained mass spectra of methyl iodide was different from others when coulomb explosion happened. We didn...

分析了碳和碘的各价离子的角分布，比较了激光在水平和垂直偏振时各种离子强度的变化。

In addition, the energy of s and p orbits of F2 or F3 ion is lower in the ferroelectric phase than in the cented symmetry phase and the covalence character of F1 ion whose contribution to the displacement is largest almost lose, which stabilize the structure of the ferroelectric system.

铁电相F2(F3)离子的能量低于中心对称相，最大位移贡献者F1的化学键性由弱共价作用到离子键的变化也是最大的，这均有利于体系的稳定。

A molecule or ion that can combine with another by forming a covalent bond with two electrons of the other.

分子，离子：可通过两个电子形成共价键而结合在一块的分子或离子 4。

The method was based on the inhibition effect of iodine on the nitrite catalyzed oxidation of cresol red by potassium bromate catalyzed by nitrite in dolute sulfuric acid medium.

研究了在稀硫酸介质中，痕量碘离子对亚硝酸根催化溴酸钾氧化甲酚红的阻抑作用，建立了测定痕量碘离子的阻抑动力学光度分析的新方法。

Objective To further understand the intracellular calcium mobilization features of the isolated ampullate crista vestibular hair cells and ATP effects on intracellular free calcium concentration(［Ca2+］i) in VHCs of the guinea pig.

目的 探讨离体前庭毛细胞（vestibular hair cells，VHC）去极化时细胞内钙离子活动特征及内耳活性物质ATP对离体VHC内钙离子浓度的影响及其机制。

The biological oxidative ability on DNA of the standard quartziferous dust and crocidolite, which is the carrier of inhaled particles in air pollution, and over ten kinds of metals and those combine and competitive reactions with DNA and chelators have been studied in order to know the role of standard quarziferous dust, crocidolite and metals in the pollution systems.

并对重要的大气污染物可吸入颗粒物的载体石英粉尘和青石棉及其承载的十余种金属离子介导活性氧氧化核酸的作用，金属离子与DNA分子和螯合剂的结合作用与竞争反应，探讨了石英粉尘和金属在污染体系中的作用。

Cupper atom is formed by means of the decomposition of CuBr into Cu;++, and then recombination of Cu;++. Consequently the recombination coefficient is bigger and the delay time of laser pulse gets longer when the working temperature is lower.

由于工作物质铜原子是通过分解CuBr成为铜离子，再由铜离子复合成铜原子，故工作温度较低时，复合系数较大，造成激光脉冲的延时时间变长，而当工作温度较高时，复合系数变小，使激光脉冲提前。

In the titration experiment of NMR and IR spectroscopy, we can understand how sensors binding with metal ions: the two carbonyl group and crown ether group cooperated in binding with metal ions. Furthermore, by altering the "oxygen" atoms of crown ether to "sulfur", we can change the binding affinity to the soft metal: cupper. It shows 60-fold enhancement of fluorescence.

在化合物2中，我们引进了硫原子在冠状醚中，则应对电子密度较低之金属有较好的结合能力，实验结果显示了此分子对铜离子有相当好的选择性和结合能力，萤光增加可达60倍；同时由红外光吸收光谱和核磁共振光谱滴定实验可确知，香豆素衍生物上的两个羰基对金属离子的选择性及结合上扮演相当重要的角色。

OBJECTIVE:To investigate the effects of current intensity and drug concentration on iontophoresis of procaine hydrochloride.

离子导入是利用电场促进药物离子通过皮肤转运的一种物理促渗手段。

However, we know by theoretical analysis that the ion cyclotron resonance heating energy is mainly absorbed by the vertical component of resonant ions.

然而，理论分析指出，离子回旋共振加热的能量主要是被共振离子的垂直分量所吸收。

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。