传感器的真空循环注油法

根据实际要求和目前的注油方法及装置的情况，提出了真空循环注油的思想，设计并研制成功了这种注油装置；介绍了它的工作过程原理、特点及应用情况．     

数据通信技术纵览

随着社会信息化进程的深入,数据通信技术获得了长足的发展,论文对数据通信技术的发展进行了回顾,并对几种主要的数据通信技术进行了比较。     

Software support for multiprocessor latency measurement andevaluation

Parallel computing scalability evaluates the extent to which parallel programs and architectures can effectively utilize increasing numbers of processors. In this paper, we compare a group of existing scalability metrics and evaluation models with an experimental metric which uses network latency to measure and evaluate the scalability of parallel programs and architectures. To provide insight into dynamic system performance, we have developed an integrated software environment prototype for measuring and evaluating multiprocessor scalability performance, called Scale-Graph. Scale-Graph uses a graphical instrumentation monitor to collect, measure and analyze latency-related data, and to display scalability performance based on various program execution patterns. The graphical software tool is X-Windows based and is currently implemented on standard workstations to analyze performance data of the KSR-1, a hierarchical ring-based shared-memory architecture     

Combinations of weak classifiers

To obtain classification systems with both good generalization performance and efficiency in space and time, we propose a learning method based on combinations of weak classifiers, where weak classifiers are linear classifiers (perceptrons) which can do a little better than making random guesses. A randomized algorithm is proposed to find the weak classifiers. They are then combined through a majority vote. As demonstrated through systematic experiments, the method developed is able to obtain combinations of weak classifiers with good generalization performance and a fast training time on a variety of test problems and real applications. Theoretical analysis on one of the test problems investigated in our experiments provides insights on when and why the proposed method works. In particular, when the strength of weak classifiers is properly chosen, combinations of weak classifiers can achieve a good generalization performance with polynomial space- and time-complexity.     

基于电压波形分析的十二相整流装置故障诊断

通过对十二相整流装置正常工作和故障运行时，整流元件电压波形的分析，提出了用以判断整流元件工作状态的特征函数，根据由该函数求出的特征值，可以对十二相整流装置的故障（包括复合故障）进行在线诊断，确定故障性质，并能准确定位到具体元件。     

一种新的发电机同期并网的数控方法及其软件设计

提出了一种新的发电机同期并网的数控方法，能结合断路器的触头闭合时间来控制发电机并网。据此编制的并网程序能使并网发生在相位相同瞬间，较为理想。     

三节点环网中输电线路的故障测距

在环网中，由于网孔中有环网电流，故障线路障碍点两则的电流不再服从简单的并联支路电流分配的规律。因此，文献中大量引用的“双侧电源单一线路”的测距计算公式，不适用不环网，本文推导出三节点环网中输电线路故障测距的计算公式，模拟计算结果表明：所推导了计算公式是正确的，可用于具有相同拓扑结构的环网。     

直线步进电动机单片微机控制与应用

提出利用单片微机作为开发平台，建立了一个测试系统来控制直线步进电机的时序脉冲，向直线电动机提供运行中节拍和方向指令，建立控制运行表格这达到直线步进电机按指定速度向指定方向运行到给定距离的目的。     

用模糊聚类分析法划分建设工期定额地域类别

在分析了建设工期定额的自然建设条件的基础上，采用模糊聚类分析法划分地域类别，并以平均模糊加权数确定各类地域类别系数。此方法可应用于工程项目建设工期定额的修订与完善，以及建设工期定额的执行和建设工期的决策与管理。     

以稻壳为原料制取氟硅酸钠

稻壳燃烧后的灰分中含硅酸酐和无定形硅达９５％，与萤石粉充分混合，在浓硫酸的作用下生成气态ＳｉＦ４和硫酸钙ＳｉＦ４经水吸收得固相硅胶和氟硅酸溶液，氟硅酸溶液与食盐作用生成氟硅酸钠和盐酸，因过程中的中间产品为气相，故最终产品的纯度一步可达９９％，收率为６２％，本法对以稻壳为燃料装置中灰渣的利用有很大的意义。