高速

Keywords: high speed train; modelling; stability; dynamics; continuation method.

中文关键词：高速列车；建模；稳定性；动力学；延续算法

Relevant statistics, the sustained rapid growth in the current fixed asset investment funding sources, the continued rise in the proportion of bank loans (24.8% reach), other sources of funding channels are in relative decline.

有关统计资料显示，在目前持续高速增长的固定资产投资的资金来源中，银行贷款的比重持续上升(达到24.8%)，其他渠道资金来源的比重却在相对下降。

Severe head and spinal injuries have occurred when snowboarders have lost control of their board at high speed.

严重的头部和脊椎损伤发生时，滑雪已经失去控制的高速电路板。

The theory and processing of loop control of high-speed wire rod mill are introduced.

介绍了高速线材轧机活套控制的原理和过程，以及由不同原因引起的活套不稳定的典型特

In the last section of the paper, the control system is researched.

论文的第三部分着重研究了高速发电机组的控制方法。

Combined with the latest development of modern technology of power electronics and digital signal processing, the power supply reseached in the thesis is based on DSP processor and IGBT-a high speed and large power convector. Its work frequency increases to 20kHz and its control is in full digital method.

本文结合现代电力电子技术以及数字信号处理技术的最新发展，采用数字信号处理器作为控制核心，高速大功率开关器件IGBT作为逆变器功率器件，将该除尘电源的工作频率提高到20kHz，并实现了对该电源的全数字化控制。

Especially, the technology of Automatic Gain Control and signal processing are studied which are key factors working on the performance of the receiver. Based on analyzing the theory of automatic Gain Control, operational amplifiers 0P37 and logarithmic D/Aconverter AD7111A are used to design variable gain amplifiers which can be controlled numerally, A/D convector LTC1405 is Used to test the echo, Complex Programmable Logic device is used for controller, and an arithmetic is designed for automatic Gain Control which is simulated and analyzed in order to test its feasibility.

本文在分析自动增益控制AGC原理的基础上，采用集成运放OP37和数控增益衰减器AD7111A设计可数字控制的可变增益运放模块；采用高速A／D转换器LTC1405作为回波信号检测模块；采用复杂可编程逻辑器件CPLD作为核心控制模块，构成数字自动增益控制电路，并设计粗调和细调步进控制相结合的算法，对回波信号的增益进行精确而快速的调节控制，使回波信号振幅快速稳定在设计指标范围内，利于接收机后续信号处理电路对回波信号作进一步的处理。

And don't expect things to cool off anytime soon.

着中国经济的高速增长，这一趋势并不会停止。

The invention is suitable to working platform in XY coordinate plane at high speed, high acceleration and precision.

本发明适合于作为高速、高加速度、高精度定位的XY两坐标平面运动平台。

The hybrid FDTD algorithm is applied to analyzing coplanar waveguide structures, and their propagation characteristics can be obtained accurately and efficiently.

应用以上方法对共面波导传输线结构进行了高速高精度的电磁仿真和传输特性的分析。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。