极化

Therefore there exist the so called vacuum fluctuations. In the QED, for example, there exist the effects of zero-point oscillations of photons, the effects of vacuum polarization of electron-positron paris, and so on. They all could result in observable consequences , such as the anomalous magnetic moment of the electron, the spontaneous emission of atoms in excited states, the Lamb shift and the Casimir effect, which have been verfied in experiments.

例如，在量子电动力学中真空中存在着光子的真空零点振动效应，正负电子对的真空极化效应等等，它们都导致可观测的物理效果，如磁矩反常、激发态原子自发辐射、兰姆移动、卡西米尔效应等。

The anticathode of polarization curve of carbon steel with SAMs by changed- electrical voltage method suggested that carbon steel is passivation state in the rust medium.

采用动电位扫描法对成膜碳钢试样测试的阳极极化曲线显示，碳钢在腐蚀介质中处于钝化状态。

The continuous ultraviolet laser with 351 nm wavelength was focused on the -z surface of nearlystoichiometric LiTaO3, and the homogeneous electric field which was antiparallel to the direction of spontaneous polarization was applied simultaneously.

波长为351nm的连续紫外激光被聚焦在近化学计量比钽酸锂晶体的-z表面，同时沿与晶体自发极化相反的方向施加均匀外电场。

The continuous ultraviolet laser with 351 nm wavelength was focused on the -z surface of nearly-stoichiometric LiTaO3, and the homogeneous electric field which was antiparallel to the direction of spontaneous polarization was applied simultaneously.

波长为351 nm的连续紫外激光被聚焦在近化学计量比钽酸锂晶体的-z表面，同时沿与晶体自发极化相反的方向施加均匀外电场。

It is shown that the structure-induced Fano resonance and SOC-induced Fano resonance exist in the charge conductance in con- sequence of the bound states interference with the conductance ones. At the same time, the Fano resonance and antiresonance structures are also found in the spin polarization.

利用晶格格林函数方法，发现由于stubs和SOC产生的势阱使系统中出现束缚态，这些束缚态与传播态之间相互干涉导致电导中出现Fano共振结构，同时在对应的自旋极化率中也出现Fano共振或反共振结构。

The formation of apatite crystals on BaTiO3 surfaces after poling treatment was examined in simulated body fluid.

在模拟体液中评价了极化后BaTiO3表面磷灰石的形成。

Generation of multifrequency terahertz radiation in a designed aperiodic poled structure was described.

描述一种非周期极化结构晶体中多频率太赫兹辐射波的产生。

The approximate formula of polarization P and complex dielectric constant ε* are obtained.

建立了铁电液晶SmC*相介电特性的分子理论，求出在外加交变电场作用下液晶系统的自由能密度，得到极化强度〈P〉和复介电常数ε*的近似表达式。

Planar Archimedean antenna has some advantages as wideband,small volume and good performance in circularly polarizing ,so it has broad appliance prosperity.

平面螺旋宽带天线具有频带较宽、体积较小、圆极化性能较好等特点，应用范围很广。

The relation of the chromatographic retention indices of alkene to topological index,double bond atomic hybridization state index,polarizability effect index of branched chain to double bond atomic,immobile liquid polarity values and column temperatureat different temperatures on different stationary phases was studied.

通过对部分烯烃在不同固定相不同柱温下的1031个样本集的气相色谱保留指数值与其部分参数关系的研究，发现RI与拓扑指数、双键原子杂化状态指数、支链对双键的极化效应指数、固定液极性值及柱温的关系可表示为：^RI=-58.138+57.7460Q-8.2591Q+0.120T+0.807CP+36.460PBD+7.919DHSI(R=0.9989)继以留一法(Leave-one-out，LOO)进行交互检验，相关系数RCV=0.9977，说明所建模型具有良好的稳定性和预测能力，较好地揭示了烯烃类化合物气相色谱保留指数RI随固定相极性、柱温的改变而变化的规律

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％。