The Design for Automation of Pellet-Forming Process in HL-2A Pellet Fueling System

In the ever fusion experiments in SWIP, pellet forming process was carried out through adjusting relative devices by staff member in site, which will make every pellet-forming process slight distinction and will result in pellet difference in shape, size and intensity. In the intervals of HL-2A discharges, staff member have to go site to accomplish the pellet-forming process, this wastes human power and increase the potential danger. So it is necessary to develop a remote control system to perform the pellet-forming process. The control system needs have the features of real-time, reliability and be easy to operate and maintain.     

可编程定时器--终极定时解决方案

如今,通信、计算和先进消费型系统中的复杂设计越来越容易受到最后时刻的设计变更、性能要求的不断攀升以及相关标准演进的影响。设计师必须保持灵活性,以便能够将关键元件的选择推迟到开发过程的后期来进行。     

新型叠层多元陶瓷片式熔断器应用指南

熔断器在电路保护中起着关键作用。对熔断器的基本要求是不该断的时候不能断(比如在出现浪涌电流的时候)，该断的时候一定要断(比如出现需要切断的过载电流的时候)。选择正确的熔断器至关重要，本文对熔断器的选择做一详细介绍。     

激光器市场回顾与展望二极管激光器

《光机电信息》于2002年第4期报道了“激光器市场回顾与展望；非二极管激光器”的分析报告，经过数月的资料收集和市场调查，本期推出“激光器市场回顾与展望：二极管激光器”的分析报告。该报告对各种应用的二极管激光器的市场进行了分析，所给结果具有普遍意义。     

不断发展的CO2激光器

世界上第1台商用CO2激光器采用了一种很大的气体流动系统，需要定期维修和保养，而今天，CO2激光器已取得惊人的进展，人类正计划将一种体积小、重量轻并能连续工作5年的CO2激光器系统送往太空。     

Three-Step Predictor-Corrector of Exponential Fitting Method for Nonlinear Schroedinger Equations

We develop the three-step explicit and implicit schemes of exponential fitting methods. We use the three- step explicit exponential fitting scheme to predict an approximation, then use the three-step implicit exponential fitting scheme to correct this prediction. This combination is called the three-step predictor-corrector of exponential fitting method. The three-step predictor-corrector of exponential fitting method is applied to numerically compute the coupled nonlinear Schroedinger equation and the nonlinear Schroedinger equation with varying coefficients. The numerical results show that the scheme is highly accurate.     

三足鼎立 谁是巅——7款非磁带式数码摄像机横向评测

“天下大势，分久必合，合久必分……” 迷你磁带已经统治数码摄像机存储领域十数载，其终于在2005年迎来了最强有力的挑战。采用DVD刻录光盘，1.8英寸笔记本电脑硬盘及闪存卡的数码摄像机开始流行起来，改朝换代的时刻已经为期不远了。     

高效率生存

“只有偏执狂才能生存（Only The Paranoid Survive）!”