查询词典 sensing

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。

This paper mentioned the basic theorem of thermal remote sensing,including themost important laws--Planck's law and Kirchhoff's law.

本文陈述了热红外遥感的基础理论，包括最重要普朗克定律和基尔霍夫定律。

A remote sensing based net primary production mode l and the distribution of net primary production in China［J］.

植被净第一性生产力模型及中国净第一性生产力的分析［J］。

In this paper,dynamic changes of lacustrine water in the Sihu area were analyzed by using remote sensing.

采用遥感方法分析了四湖地区的湖泊水域的动态变化，分析结果表明：该地区 50年代至 80年代初由于大规模围湖造田，致使湖泊水域萎缩相当严重，80年代以后，湖泊水面急剧减少的趋势得到遏制，而 90年代以后，湖泊水面基本处于无显著变化状态。

He seemed distracted as he ushered the young man in; sensing his strange mood, Simon followed quietly down the lamplit corridor.

他领这个少年进屋的时候，表现得心烦意乱；Simon觉察到他的反常，默默跟着他穿过洒满灯光的走廊。

Using the distributed optical fiber sensing technology in landslide monitoring, the main specialty of the landside may be obtained and the monitoring efficiency may be improved.

将分布式光纤传感技术引入滑坡监测，既可得到整个滑坡体的概要特征，又能提高监测效率。

On this basis, it deeply analyzesed the spatial geometry structure of hyper spectral data lattice distribution, concluded that high\|dimensional space of remote sensing hyper spectral data belong to low\|dimensional geometry structure \|"hyperplane" shape, and anomaly point group which includes alteration information usually dissociates out the "hyperplane".

在此基础上，对高光谱数据点阵分布的空间几何结构进行了深入的研究分析，推断出遥感高光谱数据集合的高维空间属于低维几何结构"超平面"形态，而包含蚀变信息在内的异常点群通常会游离在"超平面"之外。

"The process we've identified takes place in the peripheral sensing neurons where the pain signal is generated," said Dr Gamper."Targeting the peripheral nervous system for drug development would create painkillers that would leave the central nervous system untouched, thus reducing the likelihood of side effects."

"我们已经确定的过程发生在周边感觉神经元，疼痛的信号就在此产生，甘珀博士说，"把药物的发展靶向周围神经系统，创造不损伤中枢神经系统的止痛药，用以减少副作用。

It is necessary in this method that the sensing cavity has an optical path length imbalance greater than the coherence length of source such that under normal conditions no interference effects are observed at its output.

在这种方法里必须使传感腔的光程差大于光源的相干长度，使得在通常状态下观察不到干涉效应的输出。

In the chapter 3, the development and characteristic of TM image and DEM is explained generally. In following chapter, how to measure backwater curve using remote sensing and DEM is particular expounded, including revise the backwater curve using water level data which is measured by hydrology station.

在第三章中概括性的叙述了TM遥感影像与DEM的发展过程及特点，在随后的章节中详细的阐述了遥感影像结合DEM测定水库回水曲线以及利用水位站点实测数据进行校正等内容。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。