查询词典 work sampling

The thesis contains five chapters. The first chapter summarizes the development and research of switched reluctance drive, discusses the main research direction, and explains the main work in this paper. In chapter 2, hardware system which includes the design of power converter and various control circuit is discussed. TMS320LF2407 DSP is used to design the hardware circuits of SRM control system, and design details including the current detection, position sensing, fault protection, speed detecting, keyboard and display etc. are provided. Because of the full use of the abundant peripheral resources of DSP, it comes to the aim simplifying the circuit structure and heightening the reliability. In chapter 3, the application of neural network on SRM control system is introduced, a new the application of neural network and the method of sampling is proposed and a simulation system based on Matlab/Simulink is established. Chapter 4 discusses the routine designing issue. Because the modularized programming method is adopted, and multi-interrupt processing technique is used, operation efficiency of the control software is highly raised. At last, the foregoing SRM control system is tested. Speed adjustment is realized, and other targets on the research and design of SRM control system are reached, which establishes a good foundation for further research.

本文共分五章，第一章概述了开关磁阻电机调速系统(Switched Reluctance Drive，简称SRD)及其发展和研究现状，论述了其主要研究方向，并说明了本文的主要工作；接下来的一章主要讨论了SRM的硬件系统，主要包括功率变换器的设计和各种控制电路的设计，本文以TMS320LF2407为核心设计了开关磁阻电机控制系统硬件电路，给出了包括电流检测、位置检测、故障保护、测速电路及键盘和显示电路等部分电路的详细设计，充分利用了DSP的丰富外设资源，达到了简化电路结构、提高运行可靠性的目的；第三章介绍了人工神经网络在开关磁阻电机控制系统中的应用，提出了一种新的应用方式(利用GPFN神经网络调节PI参数)以及如何采取样本，搭建了基于Matlab/Simulink的仿真系统；在第四章中，讨论了开关磁阻电机控制软件的设计，采用模块化编程方法，采用基于多中断的控制程序，提高了控制软件的效率；最后，对所设计的开关磁阻电机控制系统进行了实验，实现了电机调速，达到了开关磁阻电机控制系统研究和设计的预期目标，为更近一步研究打下了基础。

In order to do well the statistic work for the samples in zones of different kinds and grades of ores, the interval grade statistic list and statistic histogram were automatically generated by computer for data processing system of sampling design.

为在采样设计时，做好矿石不同类型、同品位区间样品的统计工作，笔者用采样设计数据处理系统实现了若干区间品位统计表、计直方图的自动生成。

Via sampling test, comparing model of stepwise regression, calculating curve and forecast, we may know: these models is better and can be applied directly into practical safety monitoring work.

通过抽样测试法测试、并与建立的逐步回归模型比较以及拟合曲线和预测分析均表明：采用上述模型有很好的效果，可直接应用于实际工作中。

Its main work includes the Yellow River sediment cross-section tests, river bed surface quality sampling and particle size distribution analysis and so on.

其主要工作内容包括黄河河道断面淤积测验，河道表层河床质取样及颗粒级配分析等工作。

What is the best method of soil sampling for research work?

我们的研究中，最佳的采样方法是什么？

First designed to ensure that the access of the timing there is no problem with convergence, The control unit can be controlled signal is the work of the functional unit of sampling, Second, we must ensure that the results of the implementation of directive is correct.

首先要保证所设计的通路在时序衔接上没有问题，控制单元发出的控制信号能够被正在工作的各功能单元采样到，其次要保证指令的执行结果是正确的。

If the monitoring line was above the up limitation, suggesting that the level of HV carried by about 95% rats reached or exceeded 30%. Conclusion The Sequential sampling method could make a relatively rapid and credible conclusion on the monitoring of pathogen carrier for its avoidance of blindness work and cost waste during the surveillance.

序贯抽样分析法用于鼠类携带病原体水平的监测可在一定程度上避免监测的盲目性，做到一旦获得结果即停止监测工作，避免了监测成本的浪费，可以用较为经济的监测样本量快速地得出可靠的结论。

Should strengthen data collection, collation and analysis of the work, to improve sampling and statistical inference methods for macro-control to provide a solid foundation.

应加强数据收集，整理和分析工作，以提高抽样和统计推断方法的宏观调控提供了坚实的基础。

To find out whether any of them work, I spent a couple of weeks researching and sampling the cures

对于这些东西的效果如何，在最近的几个星期的时间内，我正在进行调查。

I asked a random sampling of my Twiltter followers who are in stable work situations what they fantasized about making a living.

我曾随意问了在Twitter上的网友。他们处于&稳定&的工作中。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。