The catalytic activity of cefia-supported Pd for selective hydrogenation of CO is well preserved in the presence of 30 ppm H2S due to the parallel oxidation of
Six ethylene-propylene copolymer samples with different structural parameters were analyzed by 1H NMR,13C NMR and 1H-13C COSY in this paper.With the aid of the
The aim of this research is to evaluate the local creep damage of various microstruc- tures such as coarse grained heat affected zone(CGHAZ),fine grained heat a