Effect of BaO on Catalytic Activity of Pt-Rh TWC

The effect of BaO doping to the Pt-Rh catalysts on its three-way catalytic activity and water-gas transfer was investigated. The results show that the light-off temperatures of hydrocarbon and carbon monoxide and nitrogen oxides have little difference in the fresh catalysts. But after the hydrothermal-aged 5 h at 1000 ℃, the catalysts containing CeO2-ZrO2-BaO has lower light-off temperature and better catalytic activity than the catalysts containing BaO and CeO2-ZrO2,

自动辨别海面运动目标的人工智能方法初探

自动探测和辨别海面运动目标是船舶自动避碰系统的重要课题。本文在探讨自动录取雷达回波的基础上，研究了如何根据几何相关和位移相关的原理，对雷达所探测到的信息进行启发式搜索，用人工智能的方法自动识别出海面的运动目标。