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A series of theoretical and experimental studies on the microstrip patch antennas with dielectric superstrates is carried out systematically. Firstly, a comprehensive survey of the microstrip antenna technology and its theories are presented. Then, two analysis techniques, named as the spectral domain Green's function method and the spectral domain integral equation method are developed. The SDGF method is a simplified analysis technique, which takes advantage of the spectral domain immittance approach to find the dyadic Green's function for the stratified media, and obtains the complete closed-form formulas for radiation patterns, directivity, efficiency, gain etc. Some interesting calculated results are presented. The SDIE method is capable of determining resonant frequency, radiation characteristics, input impedance etc, for the covered microstrip patch antennas. Comparing with other full-wave analyses it reduced computation and mathematical labour remarkably. The singularities near the pole location of the surface-wave modes and the difficulty of the integral computation over infinite range of oscillating integrands are dealt with actively and documented well. Results predicted by the SDIE method agree extremely well with our experimental results for resonant frequencies of various superstrates. The superstrate effects on impedance and radiation characteristics also have been investigated experimentally so that the gap due to lack of measured data and computed results for multi-layered superstrate has been filled to some degrees and two useful observations have been achieved for weakening the resonant frequency shift and optimizing the microstrip antenna gain. As a meaningful application, the design and analysis of a 4×4 patch array are introduced.

实用微带天线普遍加介质覆盖层来防护热，物理损伤和环境影响，也可能在飞行或严酷气候条件下自然形成覆盖层本论文对带介质覆盖层的微带贴片天线系统地作了一系列理论和实验研究首先，对微带天线技术和理论作了全面的综述然后，发展了两种分析方法，称为谱域格林函数法和谱域积分方程法SDGF法是一种简化的分析技术，它利用谱域导抗法来求得分层媒质的并矢格林函数，并得出方向图、方向性系数、增益等参数的完整的闭式公式，给出了一些令人感兴趣的计算结果SDIE法能确定介质覆盖微带天线的谐振频率、辐射特性和输入阻抗等与其它全波分析方法相比，它明显减小了计算量和数学工作量已有效地处理了表面波模极点附近的奇异性和对振荡的被积函数的无限区间积分计算的困难对于不同覆盖层情况下的谐振频率，由SDIE法所预示的结果与我们的实验结果吻合得很好对于覆盖层对阻抗和辐射特性的影响也已作了实验研究这在某种程度上填补了缺少实验数据和计算结果之间的间隙，并得出了缓解谐振频率偏移和优化天线增益的两点有用的结论作为有意义的应用，介绍了一个4×4元矩形贴片天线阵的设计和分析。

The results of predicted crack initial lifetime under experimental condition are verified by the experimental data.

热循环条件下的裂纹初始化寿命模拟预测结果与实验数据近似。

Experimental models were built on the rats in experimental group.And then,these rats were divided into model group,AQP4 intervenor group,HO-1 intervenor group randomly.

对实验组的大鼠尾状核注射HB 50ul建立实验模型，确认后又随即机分为模型组、AQP4干预组和HO-1干预组，每组均为50只。

It was found, in extensive experimental studies, that there was no significant difference in survival rates in experimental and control series, and no significant difference in the effectiveness of intra-arterial and intravenous administration of blood.

结果发现，在大量实验研究中，生存率在一系列的实验和控制并没有明显差异，有效性在动脉和静脉血液管理业没有明显差异。

The results show that the calculated cell parameters are in agreement with the experimental ones. The interactions between Li—N and Al—N are strong ionic bonds in Li3AlN2. The interaction between N and H is strong covalent bond and the interaction between Li and N is strong ionic bond in LiNH2. The calculated reaction enthalpies are 23.7 and 55.3 kJ/mol, respectively, which are in agreement with the experimental ones.

结果表明：Li3AlN2的Li—N、Al—N键主要为离子键，LiNH2的N—H键主要为共价键，Li—N键主要为离子键；298 K时贮氢反应的反应焓计算值分别为23.7和55.3 kJ/mol，与实验值均符合得较好；反应中各固态、气态物质的晶胞的结构优化后的晶格常数、键长与键角等与相应的实验值均符合较好。

SEM experimental result proved that the particle size of ammonium iron blue was uniform and about 20 nm. XRD experimental result showed that ammonium iron blue was the cubic crystal structure.

SEM实验表明，铵铁蓝颗粒大小均匀、粒径约为20 nm；XRD实验表明，铵铁蓝具有与Fe4[Fe6]3相同的立方晶体结构。

In this paper, based on piezoelectric ceramic, composite and experimental mechanics theories, a kind of 1-3 orthogonal anisotropic PCM sensor is developed, and the sensing principle is analyzed to describe sensor behaviors. In order to determine strain and stress on isotropic or orthogonal anisotropic component surface, the relationships between strain and stress are established. The experimental research on 1-3 OAPCM sensor is carried out in uniaxial and biaxial stress states.

本文在压电材料基本理论、复合材料设计方法和实验力学的基础上，构造了一种1-3型正交异性压电复合材料传感元件，探讨了它的传感原理，推导了该种元件的传感方程和用于各向同性材料／正交各向异性材料构件表面测量的应力－应变关系，并在单向和双向应力状态下，进行了实验研究。

Firstly,the Image Jacobin Matrix for GRB-400 robot which is a dynamic look and move system has been established.Then,a hierarchical Model Reference Adaptive Control law combined with a fuzzy regulator is proposed to solve the control problem,and the comparison of the experimental step responses between system with fuzzy logic and system without fuzzy regulator is delivered.The experimental results show the feasibility and advantage of the control l...

首先建立了视觉伺服GRB-400机器人的图像雅可比矩阵，然后针对该动态Look and Move系统提出了一种带有模糊自调整能力的分层模型参考自适应控制的设计方法，其特点是设计方法简单并可以在线调节相关参数，给出了闭环系统的阶跃响应实验结果，并与原分层模型参考自适应控制闭环系统的动态性能做了比较，实验证明了改进后的闭环系统具有更好的动态性能。

Through the experimental study of steel bar passed through joint of gangue concrete filled steel tube, the deforming process and the failure patterns were analyzed. Based on the experimental results, the hysteretic curves, rebar and steel tube have been depicted.

对钢筋贯通式钢管煤矸石混凝土节点在低周往复荷载作用下的试验测试，得出梁端的力和位移的滞回曲线、钢筋的变形曲线以及节点区管壁的变形，分析试件的延性和耗能能力。

So far, the soils limit analysis result in engineering practice is often obtained by taking experimental or semi-experimental measures, and it is very difficult to estimate the departure with the actual conditions. But by using KEM, the precision of soils limit analysis can be enhanced.

目前对此类实际工程问题大多是作大量的简化得到经验、半经验的结果，与实际情况之间的计算误差难以估计，而KEM（运动单元法，Kinematical ElementsMethod）则可以从根本上提高分析结果的精度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。