极化

A class of exact solutions of the Dirac equation are obtained for an electron in the electromagnetic field of a wave guide formed by two pairs of hyperbolic cylinders.

摘要研究了位于由两对双曲柱面构成的波导管电磁场里的单电子的性质，得到了单电子在场中狄拉克方程的新一类精确解；计算了极化算符的本征函数。

Further support came with the discovery of polarization, which indicated that the undulations of a light wave were transverse to the direction of propagation and were not longitudinal, as were sound and water waves.

更进一步的支持随光的极化发现而来，表明对光的传播方向来说光波波动是横向的而不是纵向的，如同声波和和水波那样。

Pertaining to a material whose electrical or optical properties vary with the direction of propagation or with different polarizations of a traveling wave.

关于一种物质的术语，其电特性或光特性随传播方向而变化或随传播中波的极化不同而变化。

Methods Fourier transform infrared absorption spectrometry, hydrogen and carbon spectra of nuclear magnetic resonance and distortionless enhancement by polarization transfer analysis were used for the structural identification of the alkaloid exstract of Gelsemium.

方法采用傅里叶变换红外光谱、核磁共振氢谱(1HNMR)与碳谱(13CNMR)、无畸变极化转移增益(distortionlessenhancementbypolarizationtransfer，DEPT)波谱分析及元素分析阐明该提取物的化学结构。

The simulation result is analyzed and the distribution law of vertical electric field is deduced.

分析仿真结果，得出了模拟器内部垂直极化电场的分布规律。

Simulation results indicate that in the case of interference with unknown DoP, this method can maintain a high SIR of the detector ...

仿真实验结果表明，在干扰信号极化度未知且变化时，该方法可以保证检测器输入端具有较高的信干比，从而有利于提高检测性能。

This method can obtain time delay, Doppler shift and polarization scattering matrix in one pulse duration.

该方法可以在单个脉冲周期内同时获取目标的距离信息、速度信息和极化信息。

The results showed that (1) AVP induced hyperpolarization in the membrane of most DRG neurons.

结果如下：(1)在受检的120个细胞中，大多数(81.67%)在滴加 AVP后产生明显的超极化反应。

Artificial tree, street lamp pole, bill-board series beautify 1 dustcoat solution of the aerial, design 1.1 aerials of concept to be suitable for polarising the ordinary aerial alternately, electricity transfer aerial 1.2 suitable for honeycomb base station communication system and room cover with system 1.3 swivelling lamp pole then 1.4 direction to regulate sector good visual 1.5 sense extremely The urban road, the highway, suburb street lamp, the solution 2 of environment design that the house is lighted,etc., radiation material choose and design 2.1 material to select for use high purity compound glass fibre reinforced plastic fiber 2.2 steel construction choose zinc-plated stainless steel material 2.3 materials measure by the speciality, radiation losses extremely small

1，设计概念 1.1天线适用于交叉极化普通天线，电调天线 1.2适用于蜂窝基站通讯系统及室内外覆盖系统 1.3可旋转灯柱进而调节扇区的方向 1.4极佳视觉感 1.5为城市道路，公路，郊区路灯，住宅照明等环境设计的解决方案 2，辐射材料选择与设计 2.1材料选用高纯度复合玻璃钢纤维 2.2钢结构选择镀锌不锈钢材料 2.3材料经过专业测量，辐射损耗极小

In the second part, we have considered the polariton system described by the model effective Hamiltonian involving single mode photon field interacting with a transverse optical phonon in a more realistic form. On this basis, we have discussed the dynamical evolution of the wave function , the dynamical variables and the non-classical properties for the system in a analytic form for the first time.

第二部分将极化激元系统约化成模型单模光子—横向声子有效相互作用系统，在此基础上以解析形式首次讨论了系统的波函数、力学量和压缩态、亚泊松分布等非经典效应的动力学演化行为。

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％。