Enhancing encoding capacity of combinational test stimulus decompressors

While scan-based compression is widely utilized in order to alleviate the test time and data volume problems,the overall compression level is dictated not only by the chain to channel ratio but also the ratio of encodable patterns.Aggressively increasing the number of scan chains in an effort to raise the compression levels may reduce the ratio of encodable patterns,degrading the overall compression level.In this paper,we present various methods to improve the ratio of encodable patterns.These methods are b...     

基于MATLAB的小波包信号消噪处理

信噪分离是小波包应用于信号分析的一个重要方面。本文在基于MATLAB的基础上,采用小波包对含高斯白噪声信号进行分解,通过不同的量化阈值对小波包系数进行处理、重构得出小波包消噪后的信号。计算机仿真结果表明,用不同量化阈值的小波包可对含高斯白声信号进行消噪重构。     

用统计方法实现汉字输入的智能联想

联想是汉字输入法的重要补充手段,能够大大加快输入的速度。本文首次提出了智能联想的概念,分析了智能联想的原理和遇到的困难,使用汉语语料库的方法构造并分析比较了3种智能联想方案,充分利用汉语字词间的相关性,使平均联想成功率超过40%。     

听爱浪水晶2号360°宽频音响

前不久,受朋友之托,刚对一个丹麦品牌的两款产品做完一点小小评论,这几天又听闻“爱浪”也有几款新品即将上市,于是马不停蹄的颇花了点心思,通过业内的几位朋友第一时间弄了一款,先听为快。下午一阵忙碌后,在试音间打开包装,终     

电网电流检测系统的标度变换和单片机显示

本文提出了一种用霍尔传感器测量电网电流的方法主要说明其标度变换和单片机显示的过程。     

Plasma Induced Degradation of Benzidine in Aqueous Solution

The degradation of benzidine in aqueous solution by the low temperature plasma was examined. The results showed that the concentration of medium and the value of pH have an appreciable effect on the degradation of benzidine. What is more important is that iron ions acting as a catalyst play an important role in this reaction. For exploring the degradation mechanism of benzidine, some of the intermediate products were recorded by HPLC (high performance liquid chromatography).     

Flow Simulation and Optimization of Plasma Reactors for Coal Gasification

This paper reports a 3-d numerical simulation system to analyze the complicated flow in plasma reactors for coal gasification, which involve complex chemical reaction, two-phase flow and plasma effect. On the basis of analytic results, the distribution of the density, tempera-ture and components‘ concentration are obtained and a different plasma reactor configuration is proposed to optimize the flow parameters. The numerical simulation results show an improved conversion ratio of the coal gasification. Different kinds of chemical reaction models are used to simulate the complex flow inside the reactor. It can be concluded that the numerical simulation system can be very useful for the design and optimization of the plasma reactor.     

一种消除强谐波干扰的有效方法

谐波干扰是一种常见的干扰。本文提出了一种消除强谐波干扰的方法，它实现简单、速度快，尤其适用于对速度和实现有限制的场合。仿真结果证明了该方法消除谐波干扰和进行谐波恢复的有效性。     

专用自动通话计费系统的数据采集与处理

介绍的专用自动通话计费系统采用二级计算机控制方式，不依赖任何交换设备，能对６４路电话用户进行数据采集及复式计费，具有独特的个人计费功能。该系统采用串行通信及双口ＲＡＭ交换信息，有效地解决串行口和Ｉ／Ｏ口不足的技术问题；状态迁移法在呼叫过程中应用，解决系统实时性和多重处理的统一问题     

轻松管理EFS恢复代理

在Windows2000中,每种工作模式下都有默认的EFS恢复代理,但在WindowsXPProfessional和WindowsServer2003中的单机和工作组环境下,却没有设置默认的恢复代理,此时,如果要使用恢复代理,必须手工添加,但按照常规的做法,手工添加恢复代理的步骤太繁琐,为此,本文以WindowsServer2003为例,介绍了一种手工添加恢复代理的简单方法。