极化

Low-dosage veratridine may induce runs of PDS like epileptiform activities on rat CA1 pyramidal neurons.

小剂量藜芦碱可在大鼠脑海马CA1区锥体神经元上诱发出阵发性去极化漂移样癫痫活动。

Recertly, the intrinsic nature of PDS has received more attention.OBJECTIVE: To observe the characteristics of epileptiform activities of rat hippocampal CA1 pyramidal neurons induced by low-dosage veratridine and investigate its possible ion mechanism.

近年来，阵发性去极化漂移的内因机制得到进一步关注和重视。；目的：观察小剂量藜芦碱诱发大鼠脑海马CA1区锥体神经元产生癫痫样活动的特征，探讨其可能的离子机制。

RESULTS: After perfusion of 0.5 μmol/L veratridine, the rat pyramidal neurons in CA1 area displayed relatively fixed-mode of runs of PDS bursting, followed by the hyperpolarization of cell membrane.

小剂量藜芦碱可在大鼠脑海马CA1区锥体神经元上诱发出阵发性去极化漂移样癫痫活动。

Results After a perfusion with low dose of veratrine, the pyramidal neurons were found to discharge relatively fixed-mode slow wave epileptoid bursts accompanied with hyperpolarization of membrane potential.

结果 小剂量Ver灌流后随着膜电位的超极化，大鼠CA1锥体神经元产生模式相对固定的慢波样癫痫样活动。

After a perfusion with veratrine, I-V relationship tended to be nonlinear and the depolarization rectification was enhanced, which were reversed by administration of low dose of TTX.

Ver诱发癫痫样活动后，I-V关系非线性化，去极化矫正增强，小剂量TTX可逆转此改变。

For both the uncoated and coated plates of 304 stainless steel, the electrochemical polarization curves were investigated in a simulated proton exchange membrane fuel cell environment and the volt-ampere technique was used to measure interfacial contact resistance between the sample and the carbon paper.

采用电化学方法测定了改性前后304不锈钢在模拟PEMFC环境下的极化曲线，在扫描电镜下观察了模拟腐蚀后的表面形貌，并用伏安法测量了改性前后304不锈钢的接触电阻。

The cyclic voltammeter and the cathode polarization techniques have been used to study the effect of additives on Ni-P alloy coatings.

利用阴极极化曲线和循环伏安曲线方法研究了各种添加剂在Ni-P合金镀层电沉积过程中的电化学行为。

The P wae represents the depolarization of the atria.

P波代表心房的的去极化。

We find that the spin polarization is quite large even with a weak spin–orbit interaction.

我们发现即使在弱的自旋轨道耦合下自旋极化率也可以达到很大。

The numerical results for semiconductor heteroj unctions consisting of III-V group show that the contribution from 10 phonons with higher frequency can not be neglected in weak field limit, although the bulk LO phonons are more important to influence on the PCM. As increase of a magnetic field, the contribution from the two branches of 10 phonons tends to be comparable with that from the bulk LO phonons.

对Ⅲ—Ⅴ族GaAs/AlAs半导体异质结的计算结果显示：在弱场极限，尽管体纵光学声子对极化子回旋质量的影响更为重要，但高频支光学声子的贡献是不容忽略的；随着磁场的增加，两支界面声子的贡献逐渐变为与体纵光学声子的贡献相比拟。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。