The Radonambiguity transform (RAT), although effcient for detecting the linear frequency modulated signals (LFMs), is troubled by the energy accumulation of noi
The effects of samarium(Sm) on carbon-methanation and catalytic activity of the Ba-Ru-K/AC (active carbon) catalyst for ammonia synthesis were investigated. The
Rare-earth intermetallic compounds formed in many R-Fe-Mn(R=rare-earth element) systems exhibit excellent properties. In order to understand the existence and s