油田抽油机高效节能定时自动控制器

本文介绍用ＣＭＯＳ集成电路组成的油田抽油机高效节能定时自动控制器，在样机模拟实验的基础上，较详细地分析了电路的工作原理和特性。该控制器可按任意设置的工作和停歇时间，自动起动和停歇抽油电动机，循环工作。从而消除了井下无油电动机空运转现象，实现了节约电能之目的。并具有各抽油电动机分散延时起动和在欠压、过载、缺相运行时的保护功能。     

基于WEB和数据挖掘的动答疑系统的设计

针对目前国内答疑系统的不足,本文对网上自动答疑系统的设计进行了论述,提出了系统自动答疑实现和数据挖掘在数据分析处理中的应用。     

基于SED1330液晶控制器的多种显示技术及其实现

介绍了液晶显示屏开发中的各种显示技术，实现了汉字的图形方式显示、数字及符号的文本方式显示，静态图片显示、实时曲线的动态显示等多种显示方式的软件设计，提出了一种便于观察整体趋势的曲线压缩技术及其关键编程技术，使测控系统中对被测参数的精确显示及参数趋势的形象化观察得以实现。     

A New Method to Extract Text from Natural Scenes

This paper presents a new method for text detection, location and binarization from natural scenes. Several morphological steps are used to detect the general position of the text, including English, Chinese and Japanese characters. Next bonnding boxes are processed by a new “Expand, Break and Merge” （EBM） method to get the precise text areas. Finally, text is binarized by a hybrid method based on Otsu and Niblack. This new approach can extract different kinds of text from complicated natural scenes. It is insensitive to noise, distortedness, and text orientation. It also has good performance on extracting texts in various sizes.     

电子秤数字和算技术及其应用

分析了传感器模拟和算技术及数字和算技术的原理并列举了数字和算技术在钢铁企业中的应用。     

A Target Recognition Approach to Projecting HRR Profiles onto Subspace

Abstract: A array of the azimuthally averaged range-profile vectors and the inter-class and intra-class divergence matrixesare constructed iwth many frames of the high resolution range profiles which result from radar echoes of airplanes. Takingthe methods of whitening transformation and SVD produces a system of subspace vectors for target recognition. Where-upon, a template library for target recognition is built by the projection of a class-mean vector made from the radar dataonto the subspace for recognition. By Euclidean distance, a comparison is made between the above projection and eachtemplate in the library, to decide which class the target belongs to. Finally, simulations with the experimental radar dataarte given to show that the proposed method is robust to variation in azimuth and immune to additive Gaussian noisewhen SNR≥5dB.     

英语松散句和掉尾句

对英语松散句和掉尾句从定义、类型及修辞特点等方面进行了比较，探讨了其相互间的转换以及各自的语篇功能。     

The M-competition with a fully automatic box–jenkins procedure

CAPRI is a fully automatic and quick procedure for forecasting. It is based on the Box–Jenkins methodology and needs no a priori knowledge about the time series. The 1001 series of the Makridakis competition have been analysed with this program and its accuracy measured in comparison with other methods. CAPRI is recommended for short term forecasting horizons in cases where the user does not want to interfere with the modelling process.     

扩展的Cooper变换

提出一种扩展的Cooper变换模式,用结构归纳法证明了其正确性,并给出应用示例。     

一种用于惯导仪器的动压气体轴承的研制

本文对惯导仪器关键部件中陀螺仪的两类主轴承进行了比较,在简要阐明动压气体轴承工作原理的基础上,对轴承设计制造、动态性能测试及轴承材料的选用问题作了介绍,所提供的一些数据对从事导航专业的科技工作者有一定的参考价值。