离子的

It is widely accepted that AP depolarize the plasma membrane and open voltage-dependent calcium channels , the calcium influx through VDCCs trigger the fusion of vesicles with plasma membrane and subsequent transmitter release.

现在被普遍接受的观点是当可兴奋细胞受到动作电位的刺激后，细胞的电压依赖性钙离子通道被打开，在动作电位的下降相引起细胞外钙离子的内流从而升高细胞内的游离钙离子浓度，触发许多细胞内的过程，譬如说神经递质分泌、信号转导和基因表达等。

According to the adsorption isotherm, the form of the adsorption wasnt the only one.

其对稀土离子的吸附性能受体系的温度、离子强度的影响很小，对时间的依赖性也很小，也就是说它对稀土离子的吸附有很好的动力学性能。

Strong vicinage effects are found in both the molecule self-energy and stopping power in the early stages of explosions, but they quickly diminish with the increasing dwell time in a manner which depends on the impact molecule speed and its axis orientation.

在库仑爆炸的早期，分子离子的总自能和总阻止本领都出现了很强的临近效应，但是在爆炸的过程中，临近效应很快就消失了，消失的时间依赖于分子离子的入射速度和分子中离子键方向与碳纳米管轴线之间的夹角。

In this thesis, a S~(2-) modified B-Z oscillating system has been successfully used to determine some heavy metal ions and through examining the influence of S~(2-) and benzylpenicillin sodium on B-Z chemical oscillating reaction highly sensitive detection methods of them have been developed.

本文主要研究了利用硫离子修饰的B-Z化学振荡体系对一些重金属离子的测定；同时利用经典的B-Z化学振荡体系对非金属硫离子进行了测定，并考察了药物青霉素G钠盐对该体系的动力学扰动行为。

By electrospray ionization multistage mass spectrometry, the fragmentation pathways of ＋ and ＋ions of homocyclic peptides were studied in detail. The fragmentation pathways of ＋ ions were different from those of ＋ ions and their dissociation mechanisms were proposed, respectively.

采用电喷雾多级质谱技术，对系列均环多肽＋离子和＋离子的质谱裂解规律进行了系统研究，两种系列的离子具有不同的质谱裂解特征，分别提出了其可能的质谱裂解机制。

Passive film was formed onto the surface of stainless steel in nitric acid solution.

在90℃温度均匀腐蚀条件下，经过40天后，321不锈钢样品在低酸度的硝酸铀酰溶液中的腐蚀速率小于0.04g／m〓。h，铀酰离子以六水硝酸铀酰的形式吸附于321不锈钢表面，在含氯离子和次氯酸根离子的硝酸铀酰溶液中，321不锈钢发生了点蚀，出现了点蚀坑。

The calcium sulfate was dissolved and led to the rapid increase of calcium ion concentration in the solution. So the calcium sulfate is not suitable for being seed crystal of low-salt concentration. The quartz sand and calcium carbonate both can be used as seed crystals, but it is much faster and more complete to use calcium carbonate as seed crystal compared with using quartz sand.

当硫酸钙加入处理液中发生了硫酸钙溶解现象，导致溶液钙离子浓度迅速增加，故硫酸钙不适合做低浓度盐水的晶种，而石英砂和碳酸钙均能对钙离子的结晶起到效果，但碳酸钙做晶种对钙离子的结晶更快捷、更彻底，在条件允许的情况下，采用碳酸钙做晶种为宜。

Er concentration.2. With the analysis of the optical parameters calculated by Judd-Ofelt theory and the lifetime of ~4I_(13/2) of Er gotten in experiment, we investigated Y dopings dispertion effect and influence to the environment of Er .3. In the research of Er/Yb/Al co-doped laser glass, we fixed the Er:Yb at 1:6 and varied the Al concentration.

我们利用Judd-Ofelt理论，计算得到了Er/Y共掺玻璃的Judd-Ofelt强度系数、光谱质量因子、自发辐射弛豫率和能级寿命等光谱参数，并且给出了不同Y掺杂浓度下Er~(3 )离子的荧光量子效率；结合Er~(3 )离子~4I_(13/2)能级的荧光寿命，深入探讨了掺Y对高浓度Er~(3 )离子在硼硅酸盐玻璃中分布的弥散作用和对配位场环境的影响。

It is more important that the proposed method offers a general approach, which can be applied to any other cations by simply replacing the lithium-selective ionophore with any other suitable cation-selective one.

更为重要的是，在这一体系中，若将其中的锂离子中性载体换成其它合适的离子载体，就可获得其它离子的荧光化学传感器。

A large releases of kinetic energy for channel CH3CS++ H of least energy might result from a dissociation mechanism according to which c-C2H4S+ isomerizes to a local minimum CH3CSH+ and then dissociates through a transition state to form CH3CS++ H. On the other hand, a predicted dissociation energy 11.05 eV for c-C2H4S ?

实验中观察到环硫乙烯离子解离成CH3CS++ H的解离通道释放出大量的平均动能，并采用G3计算预测环硫乙烯离子的解离通道，推测环硫乙烯离子异构化至次稳定态CH3CSH+结构，再经过渡态结构，断裂S-H键生成C2H3S+和H，同时释放出大量的动能。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。