电磁

The theory bases and the practical guidance about the use of direct current injection are given in this thesis.

本文的研究工作为直接电流注入技术在电磁兼容测试中的具体应用提供了理论基础和实践参考。

It can be used for any kind of electromagnetic problems and guarantee convergence for a sufficiently dense discretization.

采用矩量方程可以很好的解决任何电磁问题，同时，也可以保证适合于充分离散化的收敛性。

ABSTRACT The generation and radiation of high power and ultrawideband electromagnetic pulse are the subjects studied in this dissert...

本文研究高功率超宽带电磁脉冲产生和辐射，从理论和实验相结合的角度开展研究。

Chapter 4: Influence of the angle distortion induced from rhombohedral La_(0.7)Sr_(0.3)MnO_3 grown on the cubic substrates on the structure and transport properties of CMR thin films is carefully studied.

第四章研究菱形结构的La_(0.7)Sr_(0.3)MnO_3生长在立方衬底上引起的角度畸变对薄膜的微结构和电磁性质的影响。

In the end, we sum up the current research in the manganite thin films (such as the influence of oxygen stoichiometry, lattice-misfit strain and angle distortion induced strain on the thickness effects) and some existent issues.

最后讨论了锰氧化物外延薄膜的制备方法，及影响锰氧化物薄膜结构和电磁性质的相关因素(如氧含量，晶格失配应变，薄膜厚度，角度畸变及热膨胀系数等)以及期待解决的问题。

We study the field enhancements in the waveguide structures by doped semiconductor material, and analyze their electromagnetic fields for different structures under the plane wave illumination or the short pulse. We design several doped silicon slots cavity and slot chains with large field enhancement, and describe their physical mechanism.

我们研究掺杂半导体波导结构对兆赫波电磁场增益之影响，使用电磁模拟针对不同结构做探讨，并分析连续波和脉冲波之电磁场变化，设计具有强场增益之掺杂半导体的矽狭缝和矽狭缝链之结构，并探讨其物理机制。

Using the transform relation connecting time domain and frequency domain and the constitutive relation,the differential equations of double negative material is obtained.

由双负介质的本构关系出发，利用时频转换关系，推导出了描述双负介质中电磁场与电磁流的微分方程组。

In chapter 7, theoretical research of the measurement of complex permittivity of uniaxial anisotropic materials by means of an electromagnetic open resonator has been made, and the double refraction phenomenon due to the anisotropy of measured dielectric materials has been analyzed quantitatively.

第七章对单轴各向异性媒质在电磁开腔中的场分布和复介电常数计算公式进行了研究，并且从理论上定性定量地解释了在实际测量中出现，一直没有得到确切解释的双折射现象。

Aiming at the defects on structure design, electromagnetic design, analysis simulation, optimization design and control technology, double-action iron core mechanism, feedback-hold circuit of energy-saving capacitor voltage and intelligent control circuit were expounded, which can be a guidance for wide application...

针对目前永磁接触器在结构设计、电磁设计、分析仿真、优化设计与控制技术等方面存在的不足，重点阐述了双动铁心永磁机构、储能电容电压的反馈-保持电路及智能控制电路。为促进永磁接触器的推广应用指出了进一步的研究方向。

To present a comprehensive study of magnetorheological materials, we also give an investigation on the dynamic mechanical behavior of the double-barreled configuration in a MRF damper.

作为一个对电磁流变材料的连续认识过程，在附录中给出了双腔型MRF阻尼器的力学性能研究，揭示了剩磁作用对MRF应用器件的影响以及MRF应用器件的复杂性与不稳定性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。