本文利用铁电晶体自发极化产生的强大周期性表面势，首次提出新的自由电子激光原理。
A new principle for free electron lasers is proposed for the first time by using very strong surface periodic potential caused by the spontaneous polarization of ferroelectric single crystals.
在讨论不同结构的LDMOS表面势和表面电场模型时，本文采用多种方法求解泊松方程。
A variety of methods are employed to solve Poisson equation when discussing on the surface potential and surface electric field models of LDMOS with different structures in this paper.
本文应用基于密度泛函理论的第一性原理赝势法，较系统地研究了铜体相和表面相，以及锂离子在铜薄膜中的扩散行为。
Based on the density functional theory, the first principles calculation was performed to investigate the bulk, surface copper and the diffusion in the copper thin film.
综述了近年来对声学形变势表面极化子的性质方面的部分工作。
This article is a review on our studies in recent years for the properties of acoustic deformation potential surface polaron.
计算了自由面的速度势、自由表面波高时间历程和物体受到的波浪力。
The potentials on the free surface, the time histories of wave elevations and wave forces on the body are calculated.
本文采用改进了的线性组合算符法导出了极性半导体中与形变势相互作用的表面极化子的有效哈密顿量。
An effective Hamiltonian of surface polaron interacting with the deformation potential in polar crystals was derived by using improved linear combination operator method.
本文建立了扰动速度势面元法预报螺旋桨表面非定常压力分布的理论和数值方法。
This paper sets the theoretical and numerical method predicting the unsteady pressure distribution on the propeller blade surface by using perturbation potential based on surface panel method.
通过求解势流方程，获得了一个包含三阶非线性项、外激励及表面张力影响的非线性振幅方程。
A nonlinear slowly varying amplitude equation, which incorporates cubic nonlinear term, external excitation and the influence of surface tension, was derived from potential flow equation.
表面碳势为1.1%C的渗碳硬化层内，临近外表面部位的枣核马氏体中会出现显微裂纹。
When carburized under high carbon potential (1. 1% C), microcracks tend to appear on the martensitic matrix near the outer surface of the layer.
非平衡气氛的碳势定义为：当渗碳反应在钢表面净产生的碳为零时碳钢表面的含碳量。
The non equilibrium carbon potential is defined as the carbon content of steel when the net carbon production rate at surface of steel vanishes.
提出了一种采用两套超大红失谐消逝波干涉和一束蓝失谐消逝波光场来实现原子二维表面微光阱阵列和原子有效强度梯度冷却的新方案，得到了二维表面微光阱阵列的光强分布和光学势分布。
We propose a novel scheme to form a 2D surface array of optical micro-traps of cold atoms by using two sets of far red-detuned evanescent wave interference and a blue-detuned evanescent wave.
实验表明该膜有良好的肖特基势垒特性和对硅器件的表面钝化作用。
The experiment results show that the Schottky barrier properties and the surface passivation actions to silicon devices of the films are good.
发现表面高密度缺陷减薄了势垒层厚度，显著增强了热电子隧穿过程。
It is found that the barrier width is thinned by the surface defects with high density to enhance the hot electron tunneling.
光学势在核中的吸收系数趋于零，因此弹性散射主要发生在核的表面。
The absorption coefficients approach to zero inside the target nucleus, so that the elastic scattering takes place at the surface region of nucleus.
利用第一性原理赝势法，采用6层原子层的层晶模型研究了完整铜表面、含空位缺陷表面的性质。
Ab initio calculations are performed, using a slab model with 6 atom-layers, to investigate the character of clean surface, surface with vacancy.
利用接触势差法自行设计开发了一种新型的表面功函数测试装置。
We have made a novel instrument for the measurement of work function using contact potential difference method.
研究表明，数值结果和实验结果比对良好，这种基于势流函数理论的数值模型能够有效模拟水中岩石坠落激发表面波的生成过程。
Comparisons show that the experimental and numerical results are in good agreement, and the numerical model can be used to simulate the wave generation due to the submarine rock falling.
因此，太阳活动区磁场测量和非势特征的研究对理解太阳表面上各种活动现象的物理机制和动力学过程有着十分重要的意义。
The measurement of solar magnetic field and the non-potential characteristic of solar activity are important to explain the physical mechanism and dynamical process of solar activity.
因此，太阳活动区磁场测量和非势特征的研究对理解太阳表面上各种活动现象的物理机制和动力学过程有着十分重要的意义。
The measurement of solar magnetic field and the non-potential characteristic of solar activity are important to explain the physical mechanism and dynamical process of solar activity.
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