Fast Fourier transform(FFT) accelerator and Coordinate rotation digital computer(CORDIC) algorithm play important roles in signal processing. We propose a confi
本文介绍了应用声阻法与超声反射法对金属蜂窝胶接结构中意外冲击引起的凹坑损伤进行检测与识别的技术。结合对这种损伤的特殊检测,分析了声阻与超声检测的可行性与可靠性。
介绍大径管双壁单投影多功能射线探伤架的制作 ,既方便又实用 ,大大提高工作效率
Introducing the production of double-wall single-projection multi-function radiograp
“十二五”期间,国家电网公司西北电网将打造成为世界一流的750kV坚强智能送端电网,到2015年将实现750kV电网规模翻番的目标,“网对网”电力外送能力将达到5500余万千瓦,是当前外
Particle swarm optimization(PSO) has shown a good performance on solving global optimization problems. Traditional PSO has two main drawbacks of premature conve
Reviews of electronic product are important resources for manufacturers to gather feedbacks from customers. They provide an important reference for customers to
介绍了铂 -铱 2 5合金薄板超声波探伤的特点 ,提出了在选择及调节探伤仪时应注意的问题
The characteristics of ultrasonic flaw detection of platinum - iridium 2 5 all
介绍超声波端点衍射波测定缺陷高度的方法
A Method to Determine the Defect Height by Using Ultrasonic Endpoint Diffraction Wave
一头乌黑秀丽的长发也会使得颜值加上几分,相信没有哪个姑娘不想拥有一头漂亮的长发.但是,在平时的生活当中,我们不难发现,大多数人的头发是偏黄的,只有少部分人的头发又黑又