The alkaline-earth metal cyanamides MgCN* SrCN* and BaCN 2 were prepared by the reaction of melamine with the metal nitrides (M&N2, Sr-jN, Ba 3 N 2 ) at temperatures between 740 e C and 850 °C. MgCN 2 was structurally characterized by X-ray analysis using powder methods (R3m, Ζ 3 , a=327.34(1) pm, c-1412.82(5) pm). The crystal structures of S r C N 2 and BaCN 2 were determined from X-ray single...

To address the problem that features extracted by CNN-based facial expression recognition (FER) do not consider structural information, a region adaptive correlation deep network (RACN) is proposed. The consists of two branches. In one branch, obtained applying CNN to sub-blocks are used as input proposed second-order (SRCN), which obtains adaptively learning regions. Furthermore, they fused wi...