| 1. | Hyperpolarization and repolarization both describe increased electronegativity within the cell .
超极化及再极化都表明细胞内负电性的增强。 |
| 2. | Electron correlation effects in hyperpolarizabilities of squarates
二酮衍生物分子的超极化率和电子相关效应 |
| 3. | The hyperpolarization of membrane potential is referred to as the inhibitory junction potential ( ijp )
这种超极化被称为抑制性接点电位( inhibitoryjunctionpotential ， ijp ) 。 |
| 4. | And the current type existing in resting bovine aortic endothelial cells was an inwardly rectifying k + current
10kmach可致牛主动脉ec膜电位产生超极化；可引起牛主动脉ec产生一个外向电流。 |
| 5. | Stimulatoin of nonadrenergic , noncholinergic inhibitory ( nanc ) nerve evokes a membrane hyerpolarezation in circular smooth muscle cells of the gastrointestinal ( gi ) tract
刺激胃肠道非肾上腺素能非胆碱能抑制性神经( non - adrenergicnon - cholinergicinhibitorynerve ， nanc )使胃肠平滑肌细胞膜电位超极化。 |
| 6. | The hydrogen bonding effects and vibrational effects on the nonlinear optical properties are also investigated in this thesis . and it is found that the hydrogen bonding effects are quite important while the vibrational ones are not that obvious
研究发现氢键对pna分子的非线性光学性质的影响比较大，而零点振动平均对pna分于的一阶非线性超极化率的贡献并不很明显。 |
| 7. | For ga5p5 cluster , the most stable structure is a cube - based structure . the calculation of the density of states for ga5p5 shows semiconductor - like property . the ir and raman spectra , the dipole polarizability anisotropy invariant and hyperpolarizability are also calculated
对于ga _ 5p _ 5团簇的最稳定结构，用b3lyp 6 - 31 + g ~ *又进行了优化，计算了态密度，发现其具有半导体的性质，还计算了红外和raman谱以及极化率，超极化率。 |
| 8. | The first order nonlinear hyperpolarizabilities in second - harmonic generation process and electro - optical pockels effect are computed . the basis set effects in ab - mitio quantum - chemical computation are mainly studied . the correction to the nonlinear optical properties due to the electronic correlation energy is discussed and the relationship between the first order hyperpolarizabilities and the frequencies of the external electric field is also investigated
计算了二次谐波振荡过程和电光pockels效应过程的一阶非线性超极化率，研究了电子的相关能对pna分子的非线性光学性质的影响以及pna分子的一阶非线性超极化率与外加光电场频率之间的色散关系，并着重讨论了量子化学从头计算中基矢组的选取对计算结果的影响。 |
| 9. | In the second chapter , the nonlinear optical properties are described from both macroscopic and microscopic views , at the same time , giving the definitions of the linear and nonlinear polarizabilities . then , the explicit expressions of the linear and nonlinear polarizabilities are obtained by using quantum mechanical perturbation theory and density matrix formalism , respectively
第二章非线性光学性质，首先分别从宏观和微观两个角度讨论了极化强度和电偶极矩与外加光电场强度之间的关系，同时给出了线性极化率和非线性超极化率的定义，然后分别运用含时微扰理论和密度矩阵理论求解了分子体系的线性极化率和非线性超极化率。 |
| 10. | In addition , in the later of 80 ' s , the results obtained in weston and suzuki ' s laboratories and other laboratories showed that a new substance , christened edhf , could be released by ach or other vasoactive substances such as substance p . and the edhf could cause hyperpolarization of the vascular smooth muscle cells in an endothelium - dependent manner
除edrf外， 80年代末weston和suzuki等发现ach等血管活性物质还可使血管内皮释放一种可使smc膜电位超极化的因子( edhf ) 。 edhf介导的血管舒张不受血红蛋白和亚甲蓝的影响，说明其作用机制与no无关。 |
