RTU的实时多任务监控程序设计

本文研究了ＲＴＵ微机终端在程序设计时所遇到的问题，并提出一种通用的考虑多任务下实时监控程序设计，着重讨论了程序设计中任务的启动，转换及排序，硬件互斥问题以及抗干扰措施等方法。     

袋式收尘器的压力损失及参数推算

压力损失是袋式收尘器重要的技术经济指标。本文对压力损失的计算式进行了讨论,分析了各参量对压力损失的影响,提出了基于压力损失的袋式收尘器参数推算的数值方法。     

关税变动的经济效应分析与应用—兼论我国关税结构的调整方向

本文从关税国内经济效应分析入手,进而分析关税变动,尤其是在一定关税水平上削减关税后对国内生产者、消费者和政府关税收入的影响;借助对有效保护理论的分析,阐述我国在关税减让谈判中的策略运用,并就我国关税结构调整应考虑的因素和调整方向作了进一步分析。     

用微机进行电弧燃烧测碳硫的数据处理

介绍了用微机进行电弧燃烧法测碳硫数据处理的原理、程序，实践证明该方法测试结果迅速、准确并可存档备查。     

Study on novel second-order NLO azo-based chromophores containing strong electron-withdrawing groups and different conjugated bridges

Novel NLO azo-based chromophores containing strong electron-withdrawing groups and benzene or thiazole moiety as conjugated bridges were synthesized and characterized. values were measured by HRS method, they are in the range of 238–1459 × 10^–30 esu at the fundamental wavelength of 800 nm. For chromopheres 3 and 4, values at the fundamental wavelength of 1064 nm were also measured, they are 1575 × 10^–30 esu and 935 × 10^–30 esu, respectively. Thermal stabilities for these chromophores are reported. We also discuss the effects of different acceptors and conjugating moieties on .     

Uniform theory of the Talbot effect with partially coherent light illumination

A uniform formulation for the self-imaging of gratings with any kind of partially coherent illumination is developed in terms of the cross mutual spectral density of the partial coherence theory. The formulation includes the time diffractive intensity distribution and the averaged diffractive intensity distribution at self-imaging distances and can be applied to both continuous and temporal illuminations with any kind of spectra. It is found that the averaged intensity distribution is related only to the intensity spectrum of illumination. The continuous polychromatic illumination and the ultrashort laser pulses with or without frequency chirp are then studied by a numerical stimulation. It is shown that the ultrashort laser pulse and the continuous polychromatic illuminations have similar averaged self-image distributions. Thus the Talbot effect may help in the study of the temporal and spectral characteristics of ultrashort laser pulses. An experiment with an LED is given, as well.     

基于树状小波分解的纹理图象检索

针对图象检索应具有简单、快速、有效等要求,提出了一种采用树状小波分解特征的纹理图象检索方法,该方法可以在相应的能量准则下,自适应地对图象进行了带分解,同时可利用小波函数分解的多分辨率与多方向特性,来形成能够在一定程度上对图象进行精确描述的特征矢量;在此基础上,又采用基于图象特征值的主分量分析方法,有效降低了特征矢量的维数;另外,基于用户需求的分层检索,还满足了用户不同层次的需求。实验结果表明,该算法快速,有效,具有较强的应用价值。     

光子相关计及DMA数据传输系统设计

提出了一种实现双数据通道ＤＭＡ传输的新方法,并成功地应用于光子相关计中,得到了满意的实验结果。并以８２３７ＤＭＡ控制器为例,详细地分析了工作在命令传输方式的８２３６与外设、ＣＰＵ之间的操作时序,提出了实现双数据传输方式的逻辑设计,拓宽了ＤＭＡ控制器的处理能力。     

数字电视画像处理组件与滤波技术介绍

近年来高分辨率视频大行其道,从DVD开始,到目前的HD DVD以及BD,在搭配适当的图像编码以及加大数据流量以后,肉眼可见噪声或马赛克现象已经微乎其微,而过去在传统电视流行的视频滤波处理似乎已经失去了舞台.     

企业核心竞争力识别方法的对比研究

企业核心竞争力是现代企业管理的重要内容，要培育企业的核心竞争力，首先正确识别自身的核心竞争力。目前，关于企业核心竞争力的识别方法主要有七种，这些方法各有特点，企业应根据自身实际情况选择合适的识别方法。