查询词典 wave theory

Design of Phase-shift Power Amplifier for Control of Active Magnetic Bearing;2. A digital control of phase-shift circuit;3. Based on laser interferometer theory,Multi-wave interferometer by phase-shift ing method is applied on high-reflective coated optical flatness measurement.

本文以光干涉原理为基础，分析多光束干涉原理特点及其在平面形貌测量中应用可能，提出应用移相方法对被测镀高反膜表面进行调制，得到一系列被调制的干涉图样，经计算机对干涉图样进行自动采集和图像解包裹，获得被测表面的三维形貌数据，并通过实际测试验证了该方法的可行性和科学性。

On the basis of the fundamental theory of information optics, the Fourier transform and an iterative approach are used to calculate and analyze the point image of an optical imaging system the Point Spread Function (PSF of light intensity, to retrieve the phase of imaging system and then to obtain the wave font of the optical system.

基于信息光学基础理论，采用傅里叶变换和迭代算法计算分析了光学成像系统的星点图像（光强点扩散函数，PSF），实现了对光学成像系统位相的复原，获得了波像差信息。

By the wave propagation theory, analyse the parallel varistor and filter circuit.

本文利用波过程的基本理论，进行了压敏电阻和滤波电路配合的理论分析。

It is shown that some important concepts about Gaussian beam in the paraxial theory cannot apply to the off-axis Gaussian wave.

结果表明，傍轴光学关于高斯光束的一些重要论断，对远轴高斯波不再适用。

Electromagnetic theory ; Vector wave function space ; Vector partial differential operator ; helmholtz

电磁场理论；矢量波函数空间；矢量偏微分算子；亥姆赫兹定理

This included the wave-particle duality theory of matter, based on the work of Albert Einstein and Planck on light.

他的博士论文包括了近两年研究的一些成果，比较系统地论述了物质波理论，得到物质波的一些重要结果。

And 0. 33 is calculated from the first principles of plane wave ultra-soft pseudo-potential technology based on density function theory.

所有计算都是基于密度泛函理论框架下的第一性原理平面波超软赝势方法。

The plane wave expansion method combined with super-cell theory is used to analyze the frequency properties.

运用平面波展开法并结合超晶胞理论分析此缺陷态光子晶体的频率特性。

Secondly, on the basis of electromagnetic theory, we have described the characteristics of surface plasmon wave and its exciting configuration.

其次，我们从电磁学基本理论出发，描述了表面等离子波的特殊性质以及产生表面等离子波的激发结构。

We found, for the first time, the negative resistance phenomenon, and interpreted it through the application of the theory of surface plasmon polariton and polarized wave.

报道了对用射频磁控溅射法制备的钛酸锶铅薄膜隧道结进行的 I V特性的测量，发现有负阻现象，并首次用表面等离激元和极化波理论对此作了解

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％。