波形轮齿形加工装置的研究

利用活齿齿形加工原理，对〈苏〉５３２型滚齿机进行了技术改造设计，实现了准确、经济、高效地加工外波式活齿减速器波形轮齿形的目的，为活齿减速器的推广应用创造了良好条件。     

混合神经网络矢量量化的设计与实现

本文设计了一种混合神经网络矢量量化编码方法,利用Kohonen网络的自组织聚类功能设计矢量量化器码书,实现矢量量化,用三层BP网络完成码字的信道符号编码.该神经网络矢量量化编码器能够并行处理输入矢量,速度快,效率高,适用于语音和图像数据压缩.     

Characterization and adsorption behavior of a novel triolein-embedded activated carbon composite adsorbent

A novel triolein-embedded activated carbon composite adsorbent was developed. Experiments were carried out in areas such as the preparation method, the characterization of physicochemicai properties, and the adsorption behavior of the composite adsorbent in removing dieldrin from aqueous solution. Results suggested that the novel composite adsorbent was composed of the supporting activated carbon and the surrounding triolein-embedded cellulose acetate membrane. The adsorbent was stable in water, for no triolein leakage was detected after soaking the adsorbent for five weeks. The adsorbent had good adsorption capability to dieldrin, which was indicated by a residual dieldrin concentration of 0.204μg·L^-1. The removal efficiency of the composite adsorbent was higher than the traditional activated carbon adsorbent.     

8031扩展一片8255来管理点阵式液晶显示模块

介绍了一种在８０３１为核心的单片机系统中扩展一片８２５５来管理ＵＣ－１６２－０９（０３）（１６×２）点阵式液晶显示模块的实用电路及软件配置。ＵＣ－１６２－０９（０３）模块可以显示１６×２个字符（显示位），每个显示位５×７点阵结构。     

大型储油罐电位的模拟测量和计算

本文通过解析法、数值解法和实际的模拟测量,研究了设定的油面电位分布时油罐中静电场分布及轴线上场强变化的情况。为监测油面电位大小提供了一个可行的实测方法。     

STUDY ON THE BIODEGRADATION OF CELLULOSE FIBER/BASALTIC FIBER COMPOSITE PAPERBOARD

INTRODUCTIONThe Biodegradation of cellulose fiber/basaltic fiber composite paperboard prepared by reference [1] was studied experimentally and the influence factors on the biodegradation velocity were researched. EXPERIMENTALExperimentalEquipmentThe equipment of the biodegradation experiment is shown in figure 1. The carbon dioxide gas was removed when the compressed air generated by air pump passed through the taper bottle filled with sodium hydroxide solution, and then, the air tra…     

GTM法沥青砼在干线公路上的应用

针对干线公路交通量大,车载超重,易发生车辙、推移、拥包等病害的实际情况,采用GTM试验法配置沥青混凝土预防并在干线公路上进行应用.     

有限群的正规π补

文章给出了有限群G具有正规π补的充要条件     

河南西峡恐龙18srDNA片段质疑

按照ｒＤＮＡ的结构特点，将ＤＡ１８Ｓ１，７与其他８种生物的ｒＤＮＡ序列进行排列比较，结果表明这２个序列不是恐龙ｒＤＮＡ片段，ＤＡ１８Ｓ７看来更接近一种植物ｒＤＮＡ片段（与金虎尾的同源性达９４％以上），而ＤＡ１８Ｓ１与２种参与比较的真菌ｒＤＮＡ序列有很高的同源性（８８．３％和８９％），它们与脊椎动物ｒＤＮＡ的同源性分别只在６７．８％～７４．１％之间。     

甘油硝化过程中原料甘油所含杂质对安定性影响的统计分析

本文用统计方法分析甘油硝化过程中，原料甘油中杂质对硝化甘油安定性的影响，并在统计学意义下，给出了原料甘油中杂质对安定性影响程度的初步排序．统计分析的结果与化工原理及生产实践相吻合．