Ecofeminism affords a brand-new perspective of pondering the causes of ecological crisis and solutions to diversified en......

Since the second half of 2004, the auto market has taught manufacturers a lesson inmarket place cruelty. People are cons......

This paper relates to the semi-empirical model based on fire field energy balance and the physical model based on land ......

In the mechanical fault detection and diagnosis field,it is more and more important to analyze the instantaneous frequen......

【正】Ever since its founding,the World Bridge Foundation of Hungary has been aiming to set up a platform of dialogue be......

本文介绍适用子精密大型测试仪器──坐标测量机的激光非接触式测头的研制。该测头采用ＰＳＤ作为敏感元件并采用单片机技术完成对测量数......