查询词典 systematic sampling

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。

Rapper Chino XL created a song by the name of Kreep sampling the lines "I'm a creep, I'm a loser, you're so very special, I wish I was special".

它每一个音符所爆发出的情感与力量早已在我们的灵魂中打上了深深的烙印----一条美丽的伤口。

One method to analyze bounded variable of this paper is "The Bounded Unit Root" which provided by Cavaliere (2005), and the other is using Gibbs sampling simulation and trying to recover the part of hidden variables. We would examin some empirical problems that has often been tackled in the literature and we give three time series which include Danish kron/Deutshe mark, Belgium Franc/ Deutshe mark, and Japan 1 mouth interbank interest rate for examples.

本文利用Cavaliere (2005)所提出的限制下单根检定与Gibbs sampling将潜在变数还原的方法，探讨当资料受到限制时的单根检定问题，并以丹麦克朗与比利时法郎兑德国马克的双边汇率以及日本同业间一个月期拆款利率为例，比较其与传统单根检定的结果有何异同。

Study the different scale effect of forest landscape pattern in Beijing mountain area by the sampling of the line pattern, grid pattern and polygon pattern interpolated from point pattern, with the help of information entropy, lacunarity index and geostatistical analysis.

2采用信息熵法、孔隙度指数和空间地统计学三种尺度分析方法，分别从线格局、网格局以及由点格局插值为面格局几个不同角度和层面对北京山区森林景观格局进行尺度效应研究。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。