基于LabVIEW的环境检测系统设计

本设计采用目前最为先进的虚拟仪器技术,以LabVIEW 7.1为虚拟仪器开发平台开发设计环境检测系统的界面,包括对温度、可燃性气体浓度和光照度的数据采集和记录,并对超量的参数进行视觉和听觉报警。     

仪表仪器实时语音检报系统初探

本文利用MCS—51单片机的语音采集与生成技术,使仪表仪器实现实时语音报告系统的状态、检测的结果数据以及故障或紧急情况的报警等。     

通用音乐设备数字化接口的乐器预置值映射

通用音乐设备数宁化接口(GM）最有意义的部分之一是乐器预置值映射，包含128种音色和编号：分为16类，每一类含8个有关表目。     

ESP Evaluation：Importance,Classification and Specific Features

专门用途英语（ESP）测试与评估是专门用途英语课程设置中非常重要的一环。然而,长期以来,专门用途英语测试与评估却未得到应有的重视。为了使广大专门用途英语教师认识到专门用途英语测试与评估的重要性及其特点,进而提高专门用途英语课程的整体效果（无论职业英语或是学术英语课程）,本文试对专门用途英语测试与评估体系的重要作用及特点进行了系统的探讨和研究。     

Chemistry laboratories,and how they might be studied

Chemistry laboratories, as buildings, have been surprisingly little studied by historians of science; interest has been focused on them more as sites of specific scientific activity, with particular emphasis on the personalities who worked within them. This has overshadowed aspects of laboratories such as their specification, design, construction, fitting-out, adaptation, replacement, status as civic and academic structures, and so on. Systematic study of them would be aided by an agreed taxonomy of laboratory types, according to their purpose, and a scheme is proposed here. Practically no pre-1800 chemical laboratories survive, and there are very few dating from earlier than 1900, at least in their original state. Encouragingly, there have been several recent archaeological excavations which have turned up interesting evidence of early examples from various cultures. Little interest has been shown in the preservation of laboratories as significant architectural or historical structures, certainly when compared with other building types. The paper closes by considering those English laboratories which enjoy some level of legal protection but questioning the criteria adopted in deciding the programme of preservation.     

一种磨机负荷检测传感器的研究和设计

本文论述了压电陶瓷振动传感器检测磨机负荷率的工作原理、结构及方法，并介绍用单片机制成的智能型检测装置，经试验证明该传感器及装置有实用价值     

如何用统计软件SPSS进行英语测试分析

语言测试是外语教学中校其重要的组成部分，是检查、促进教学的重要手段。测试的结果可以为教学提供反馈，帮助教师了解学生的学习情况，改进教学方法。而对测试结果的分析，需要科学的工具方法。本文以一组测试成绩数据为例，探讨了如何用统计软件SPSS对测试成绩原始数据进行科学的统计分析，从而为教学提供指导性的反馈意见。     

非接触测速信号的接口设计

在非接触测速中,采用变中频带通滤波技术,处理非接触测速传感器的信号接口,取得了教好的效果。使电路结构大为简化,并且提高的频率响应,彻底消除了采用跟踪滤波处理方式所存在的启动突变、信号跳变大、输出曲线不平滑等缺陷,同时降低了功耗,并具有很好的通用性和兼容性。     

现代光学测量中若干变换基,测量链和仪器群

本文讨论了光学测量中的若干变换基,测量链和由此产生的仪器群以及它们的实际应用。