极化

The piperidine and its ramification selected as raw material to synthesis α-aminonitriles were studied in detail firstly. The oxidation potentials of the amines were determined through the liner sweep voltammetry study.

首先详细研究了以哌啶及其衍生物作为合成原料，通过极化曲线法确定了其氧化电位，并首次发现了氧化电位与1H NMR的化学位移之间的相关性。

Different cytokines direct the polarization of Th cells and are instrumental in pivoting the development of an immune response.

细胞因子本身在诱导Th细胞极化中起关键作用，并能转化免疫反应的类型。

Of the plane of polarization of polarized light passing through an ''.'optical'.

光学'。''结构或样品的极化光的偏振平面旋转的一''。

Both the plane of polarization and the fiber stress rods are horizontal.

极化平面和纤维强度棒条体平面都是水平的。

An instrument used to measure the rotation of the plane of polarization of polarized light passing through an optical structure or sample.

偏振计；旋光计用来测量经过光学结构或样品的极化光的偏振平面旋转的一种仪器

An instrument used to measure the rotation of the plane of polarization of polarize d light passing through an optical structure or sample.

偏振计；旋光计用来测量经过光学结构或样品的极化光的偏振平面旋转的一种仪器

The PZT plates were polarized in thickness direction. By using the deformation in the plane perpendicular to the direction of polarization, the rotation around Z axis was generated when the torsional vibration around Z axis mode was excited. And the rotation around X axis or Y axis was generated by combining the longitudinal vibration mode and the bending vibtration mode.

利用压电陶瓷在垂直极化方向平面内的变形，激励定子绕Z轴的扭转振动模态，实现转子绕Z轴的转动；激励在定子中固有频率接近、振动方向相垂直的伸缩振动模态和弯曲振动模态，并通过振动的叠加使定子末端质点产生绕X轴或者Y轴的椭圆运动，实现转子绕水平轴的转动。

Considering the ionospheric refractive index in geomagnetic field, the radiowave polarization plane rotation has been calculated. For linear frequency modulation pulse signal, the expression of Doppler shift error due to ionospheric dispersion characteristics is derived.

本文还计算了考虑地磁场时电离层双折射指数特性引起的电波极化面旋转角，推导出对于线性调频脉冲信号电离层介质色散特性引起的合成孔径时间内多普勒频移误差的表达式。

Finally, the four-unit cylindrically conformal microstrip antenna array is processed and tested. Testing results indicate that, the input VSWR of the antenna array in the vicinity of 1.575GHz is less than 2, the omni-directional performance good, 3dB bandwidth is about 90 degree on axial plane, right-hand circularly polarization good. Overall performance of the antenna array satisfies the design requirements.

对仿真获得的四单元柱面共形微带天线阵列进行了加工测试，测试结果表明该天线阵列在1.575GHz附近工作频带内输入驻波小于2，柱面法向平面全向性良好，轴向平面3dB波瓣宽度约为90。，右旋圆极化效果良好，天线整体性能达到工程设计要求。

Experiment on transmission properties of TE polarized plane wave incidented on frequency selective surfaces.

FSS对TE极化波传输特性的实验研究

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％。