浅述PCB电性测试设备的发展趋势

新的封装技术以及新的工艺将逐步在PCB的制程上使用,PCB的电性能测试将显得格外重要,本文介绍了现阶段PCB电性能测试技术的发展和分类,PCB电性能测试技术和测试设备的现状,未来PCB测试设备的发展方向以及测试设备急需突破的技术瓶颈。

英语听力(江苏)卷分析及备考启示

该文通过对比分析的方式,讨论近六年江苏高考英语试卷听力试题的内容、特点、考查重点、命题趋势,以及学生在听力中存在的困难和高三英语复习备考过程中应采取的有效方法。

Fuzzy Logic Based Approach in an Enterprise Resource Planning System for Hydraulic Cylinders Assembly

Trends in modern industry show a tendency towards demassovization of production as a response to the customers＇ specific needs for unique and personalized products. This provokes significant changes in the processes of manufacturing, assembly, and testing The cost of such a type of production can be reduced by employing highly productive reconfigurable equipment with proper software to enable optimization. This paper presents a decision support extension for directing of hydraulic cylinders to assembly-testing lines using fuzzy logic in the Enterprise Resource Planning system of a small size production in a factory in Bulgaria. Different assembly-testing lines are flexibly assigned to the specific cylinder＇s parameters by the developed fuzzy system on the basis of the overlapping of parameters in the hydraulic cylinders classification. The final decision on the line assigned in case of alternatives is made through accounting for the minimal cylinder delay time. The effectiveness of the approach is assessed by simulation. It leads to an increase of the efficiency of the assembly-testing flow lines, a reduction of the time needed for hydraulic cylinders assembling and testing and balanced loading of the modules.

从汉英语言差异谈大学英语翻译教学——以近年CET-4真题为例

本文以近五年四级考试中的翻译真题为切入点,讨论汉英两种语言在词汇、句子成分上的差异,提出一个立体式的大学英语翻译教学模式,以求促进大学英语教学过程中学生翻译能力的培养。

军用测试系统有关标准的探讨

基于国际测试标准的对比分析,探讨了军用测试系统体系标准化相关问题。文中简述了ATS体系标准化的发展历程,剖析了未来新一代军用自动测试系统标准化的内容,对比研究了相关体系标准化特点与发展趋势。相关标准的探讨有助于为我国军用自动测试系统标准化提供借鉴与参考。