基于TC8830AF的智能语音卡结构与设计

本文描述一种基于８０３１单片机和ＴＣ８８３０ＡＦ语音处理器的ＰＣ机智能语音卡，通过软硬件设计解决了ＰＣ－８０３１－ＴＣ８８３０ＡＦ结构中的通讯问题。该语音卡在进行语音的合成、编辑和播放时，仅占用极少的ＰＣ机ＣＰＵ处理时间，能满足计算机系统进行实时语音合成的要求。     

用金字塔图法匹配边界图象的三眼立体视觉方法

本文在分析了双眼立体视觉面临的本质困难之后，提出了用金字塔图法匹配特征基元的三眼立体视觉方法，这种方法由于建筑在透视投影几何原理的稳固基础上，无须任何先验限制，也不以图象相似性为基础，故可较好地解决精度与匹配难度的矛盾，且运用金字塔图法进行匹配传播使在保证精度的基础上，匹配速度大大提高，对计算机人工图象的匹配结果表明，误匹配率几乎为零，且有较高的匹配速度和精度。     

Efficient Parallel Algorithms for Some Graph Theory Problems

In this paper,a sequential algorithm computing the aww vertex pair distance matrix D and the path matrix Pis given.On a PRAM EREW model with p,1≤p≤n^2,processors,a parallel version of the sequential algorithm is shown.This method can also be used to get a parallel algorithm to compute transitive closure array A^* of an undirected graph.The time complexity of the parallel algorithm is O(n^3/p).If D,P and A^* are known,it is shown that the problems to find all connected components,to compute the diameter of an undirected graph,to determine the center of a directed graph and to search for a directed cycle with the minimum(maximum)length in a directed graph can all be solved in O(n^2/p logp)time.     

Y-89在新桥矿选铜厂的应用实践

新桥矿选铜厂1999年使用捕收剂Y－89后，选铜回收率提高了4．82％，获得了显著的经济效益。     

超细水泥封堵技术

注水开发后期日益出现的地质问题及油套管的严重损坏,制约了油田的开发效果。针对河南油田注水开发中存在的上述问题,通过对超细水泥堵剂配方、堵剂性能、适应性等方面的研究,可实现对油井的高含水层、注水井的停注无用层、油水井套管外窜槽、穿孔、丝扣处的漏失等方面的封堵,取得了显著效果。自1998年8月-2001年12月在河南油田应用61井次,有效率85.3%,其中油井36井次,年度累计增油1.441×104t,降水7.6123×104m3;水井封堵25井次,累计增注14.32×104m3,控制无效注水16.95×104m3,创效益1800多万元,投入产出比达1:11.36,具有广泛的推广应用价值。     

Skeletal Isomerization and Inter—molecular Hydrogen Transfer Reactions in Catalytic Cracking

Bimolecular hydrogen transfer and skeletal isomerization the important secondary reac-tions among catalytic cracking reactions,which affect product yield distribution and product quality,Catalyst properties and operating parameters have great impact on bimolecular hydrogen transfer and skeletal isomerization reactions .Bimolecular hydrogen transfer activity and skeletal isomrization activity of USY-containing catalysts are higher thn that of ZSM-5-containing catalyst.Coke deposition on the active sites of catalyst may suppress bimolecular hydrogen transfer activity and skeletal isomer-ization activity of catlys in different degrees.Short raction time causes a decrease of hydrogen trans-fer reaction,but and increase of skeletal isomerization reaction compared to cracking reaction in catalytic cracking process.     

假钞的公众识别方法

一、假钞公众识别的必要性马克思在《资本论》中有一段名言：“一旦有适当的利润，资本就胆大起来。如果有10%的利润，它就保证到处使用。有20%的利润，它就活跃起来。有50%的利润，它就铤而走险。为了100%的利润，它就敢践踏一切人间法律。有300%的利润，它就敢犯任何罪行，甚至冒着绞首的危险。”伪造货币“创造”的利润之巨不言而喻，而其危害性也人所共知。轻者给个人造成损失，特别是经济损失。重者扰乱金融秩序，影响社会的稳定。在世界范围内，所有国家都将伪造货币视为严重犯罪，对伪造者处以极刑。对普通大众而言，了解假钞的公众…     

深基坑支护结构计算的有限元方法

针对软土地基的特性，本文提出了考虑土体抗力释放与结构模型随施工过程改变的新杆系有限元法，并 编制了求解支护结构内力与变形的计算程序，通过对事例分析．计算结果与实际情况非常吻合，证明了该方法的合理 性。     

A concise process technology for 3-D suspended radio frequency micro-inductors on silicon substrate

In this letter, a concise process technology is proposed for the first time to enable the fabrication of good quality three-dimensional (3-D) suspended radio frequency (RF) micro-inductors on bulk silicon, without utilizing the lithography process on sidewall and trench-bottom patterning. Samples were fabricated to demonstrate the applicability of the proposed process technology.     

绿色食品与绿色包装

介绍了食品绿色包装与环境保护的关系，探讨了食品绿色包装材料的选择及应用，食品绿色包装设计及市场价值等方面的内容。