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The simulation and test results show that the space-filling feature of Hilbert fractal structure antenna can be effectively transformed into the size-reducing feature, and that the RFID tag antenna with one-dimension Hilbert fractal structure is of higher efficiency.

仿真和实测结果表明，Hilbert分形结构天线的空间填充特性可有效转化为标签天线的尺寸缩减特性，而且一维Hilbert标签天线具有更高的天线效率。

Two GFRF system model identify algorithms based respectively on Signal Flow Graph/Driving Point Impedance and EDA simulation are proposed. In order to solve the problem of fault diagnosis that the inner structure and parameters of the Object under Test cannot be able to determine, a new fault diagnosis method based on the phase space reconstruction and GFRF general formula is investigated. This method builds up a bridge between the chaos theory and Volterra series analysis, which does not strongly depend on the topological structure and the testing data length, is sensitive to the fault property, traces monotonously the change of system fault, and possesses some significant predominance compared with conventional fault diagnosis methods of analog circuits.

提出了基于信号流图/驱动点阻抗法的GFRF算法和基于EDA仿真和非线性频谱响应特性分析的系统模型辨识算法，为解决工程实践中不能确知被测对象内部结构和参数时的故障诊断问题，研究了基于相空间重构和GFRF简化算法的复杂电子系统故障诊断方法，该方法建立了混沌理论与Volterra级数分析法之间的桥梁，它对被测对象的拓扑结构依赖性不强，对被测系统的故障性质的敏感，可以单调地跟踪系统故障的变化，这种基于混沌特性分析的故障诊断方法与其它的模拟电路的故障诊断方法相比较具有显著的优势。

Further more, an improved scheme was proposed according to the characteristics of fluid flow in Lost Foam Process. The simulation and pouring test results show that the shrinkage defect at the top of the sheathing board casting could be eliminated by using top gating system.

根据干砂消失模铸造充型过程特点，提出了改进方案，数值模拟结果及浇注实验结果表明，采用顶注式浇冒口系统可以消除铸件顶部的集中缩孔缺陷，证明了模拟软件的正确性。

The test of electro-hydraulic seismic simulation shaking table is a very important research approach for seismic project. It has been developed rapidly in the recent ten years.

电液伺服地震模拟振动台试验是地震工程重要的研究手段，近十年来得到了迅速的发展。

On the basis of above-mentioned theory, Lime rock specimens indifferent scale series from Hebei Jingxing is tested under uniaxial compression.Besides, through numerical simulation and test of coal specimens from Datongand Luan scale effects rule is found out. And that, physical and mechanicalcharacteristics of specimens are studied under uniaxial compression.

基于上述理论认识，通过对室内不同尺度系列的井陉石灰岩单轴压缩试验和数值模拟，以及对大同、潞安的有关煤样试验，得出了尺度效应相关规律，并对岩样在单轴压缩过程中相应的物理力学现象进行了分析研究。

To conduct system verification and performance test, we needed to design an eight channels array signal simulation device.

为进行该系统的功能验证和性能测试，我们需要设计一个八通道阵列信号模拟器。

In this paper, the influences of wave obliquity and multi-directionality on wave forces acting on vertical breakwaters are investigated by a 3-D hydraulic model test and the numerical simulation.

本文的三维物理模型试验在大连理工大学海岸与近海工程国家重点实验室的综合水池中进行。

In this paper, the influences of wave obliquity and multi-directiona lity on wave forces a cting on vertical breakwaters are investigated by a 3-D hydraulic model test and the numerical simulation.

本文的三维物理模型试验在大连理工大学海岸与近海工程国家重点实验室的综合水池中进行。

In the design and test of the communication system,communicating signal simulation possesses many advantages,such as good flexibilities,economy e.g.

在通信系统的设计、试验过程中，通信信号仿真具有灵活性好、经济等诸多优点，为通信系统研究工作带来了极大的方便。

Semi-facticity simulation can avoid modeling of complex non-linear time conversion system in pilotless aircraft system, test functions and capabilities of equipment, and assess coherence during equipments.

半实物仿真可避免无人机系统中复杂非线性时变系统的建模，检验各参试设备的功能和性能，并考核设备间的协调性。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。