查询词典 sampling location

The qualitative analysis of N polyaromatics in heavy oil was made by a double adsorption separation followed by the application of low voltage ionization and high resolution MS direct sampling.

通过两次吸附分离，然后采用低压电离，高分辨质谱直接进样技术对重馏份油中的含氮多环芳烃进行定性测定。

To determine the best sampling time of ipomoea lam leaves as well as the value of their resources, dynamic changes in the content of chlorogenic acid from ipomoea lam leaves in different periods and its ability of scavenging free radicals were studied.

摘 要：研究甘薯叶中绿原酸的动态变化规律以及其清除自由基的能力，从而确定甘薯叶最佳采样时期以及甘薯叶的资源价值。

With the application of the sampling theorem and the Fast Fourier Transform, two groups of numerical forms of the algorithm equations suitable for two kinds of FFT subroutines are derived. Finally, the measurement algorithm is fully tested by the measurement and calculation carrier out for an MMW irradiator.

在解析算法的基础上，应用采样定理和快速傅里叶变换，推导了分别适用于两种快速傅里叶变换子程序的数值算法公式，通过对一种毫米波辐射器的实际测量和计算对测量算法进行了整体检验。

Numerical solution of the model is maed by using Monte-Carlo sampling method.Its solution is astochastic field. It is showed by a real case that the model can describe the main trend and changing range ofpollutant'sconcentration at any calculating point,and the probability is added to the isopleth of the pollutant'sconcentration.

该随机模型的解是一个随机场，实例计算表明，它的解能够反映任一计算点的浓度变化趋势及范围，并能够给程度等值线附加上概率的意义，表现了在不确定因素的影响下，污染带随机变化的情况。

Then we discuss the choice of optimal path in path sampling ,which turns out to have close connection with the Jeffreys prior density and the Rao and Hellinger distances between two densities.

接着讨论了路径抽样中最优路径的选择问题，它与Jeffreys先验密度及两密度间的Rao和Hellinger距离有密切关系。

Bayesian Analysis ; MCMC Simulation ; Jeffreys's Prior ; ARMS Sampling ; Robust Parameter Design ; Non-normal Response

贝叶斯分析； MCMC模拟； Jeffreys先验； ARMS抽样；稳健参数设计；非正态响应

A new jitter measurement method is developed,which is based on equivalent sampling.

提出了关于时钟jitter的一种新的测量方法。

However, judder from a low sampling rate remains.

不过，从低采样率抖动仍然存在。

The judder present in these scenes comes both from 3:2 pulldown and a low sampling rate.

在抖动，这些场景无论从目前来自3：2下拉和低采样率。

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。

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。