Abstract: This invention discloses one kind of co-doped carbon composite material with transition metal and nitrogen for removal of formaldehyde and its preparation method. The materials are composed of non-noble metals as active components and nitrogen-doped carbon carrier; The non-noble metal active components are transition metal salts of nickel, cobalt, iron and manganese or their mixtures. The carbon composite materials reported in this invention have high specific surface area and strong adsorption and catalytic decomposition performance for formaldehyde, and harsh conditions (e.g. high reaction temperature etc.) are not required for catalytic oxidation of formaldehyde. It also features in low cost, high catalytic efficiency at room temperature and long durability etc.

Abstract: A method for generating image frames includes setting a 3D display mode of the image frames, configuring at least one parameter of the image frames, and displaying the image frames according to the 3D display mode and the at least one parameter of the image frames. When an input command is received while displaying the image frames, the input command is determined to correspond to parameters of the image frames or not. If the input command does not correspond to parameters of image frames, the parameters of image frames are reconfigured according to the input command.