应用ART网络的成组技术实现方法研究

文章提出了一种成组技术的实现方法－基于ＡＲＴ神经网络实现方法，此法运算效率高，成组效果明显，同时能直接给出瓶颈机床（零件）。     

人工神经网络的发展、研究内容及应用综述

本文对人工神经网络的发展、研究内容及应用进行了综述。     

便携式光学测温仪

Raytek公司介绍了一种型号为Raynger11型的便携式光学测温仪,波长范围为8～14微米,由微处理机计算并存贮测量数据及环境补偿,温度范围为-30到 1100℃,精度为1℃,光学分辨率为30/1,响应时间为0.5秒。     

激光跟踪装置

本文谈到的是一台激光跟踪装置,它是用来进行测量与一个预定位置有偏差的距离。更明确的讲,这台激光跟踪装置包括:一台用于发射方向性好的强辐射的装置,一台来自固定范围内辐射的接收器,一台至少包括两个对接收辐射灵敏的探测器元件的探测装置;一个在两个探测器元件之间的间接引线;一台在探测器上使接收辐射成象的装     

A Simple Model for Measuring Refractive Index of a Liquid Based upon Fresnel Equations

Due to many experimental data required and a lot of calculations involved, it is very complex and cumbersome to model prism-based liquid-refractive-index-measuring methods. We develop a new method of mathematical modelling for measuring refractive index of a liquid based upon the Fresnel formula and prism internal reflection at an incident angle less than the critical angle. With this method, only two different concentrations measurements for a kind of solution can lead to the determination of computational model. Measurements are performed to examine the validity of the theoretical model. Experimental results indicate the feasibility of the theoretical model with an error of 1%. The method is also capable of measuring even smaller changes in the optical refractive index of the material on a metal surface by the surface plasma resonance sensing techniques.     

Development of the Technique for Fabricating Submicron Moire Gratings on Metal Materials Using Focused Ion Beam Milling

A focused gallium ion （Ga＋） beam is used to fabricate micro/submicron spacing gratings on the surface of porous NiTi shape memory alloy （SMA ）. The crossing type of gratings with double-frequency （25001/mm and 50001/mm） using the focused ion beam （FIB） milling are successfully produced in a combination mode or superposition mode. Based on the double-frequency gratings, high-quality scanning electron microscopy （SEM） Moird patterns are obtained to study the micro-scale deformation of porous NiTi SMA. The grating fabrication technique is discussed in detail. The experimental results verify the feasibility of fabricating high frequency grating on metal surface using FIB milling.     

我国西部通信企业的创新能力的研究

中国西部的通信业在近年来取得快速的发展，但随着中国加入了WTO，我国西部通信企业也将面临着前所未有的挑战，那么如何面对这个挑战？创新是西部通信企业走出困境的惟一出路。创新不是盲目的创新，而是有目的的创新，有重点的创新。本文就西部通信企业的创新发表了作者自己的一点观点。     

美空军高级超视距终端简介

美空军在2008年底研制完成并交付了高级超视距终端系列（FAB—T）。该终端计划旨在利用高级极高频（AEHF）卫星星座所提供的新型与高度安全和高度抗毁的通信能力，确保战略级话音和数据能够在任意环境下安全地传送给作战人员