Abstract: An object of the present invention is to provide a method for manufacturing quantum dots capable of containing a large amount of Zn on a surface thereof, and a quantum dot. A method for manufacturing quantum dots of the present invention includes a step of producing a core containing at least Ag, Ga, and S or Ag, Ga, and Se, and a step of coating a surface of the core with a shell, and in the step of coating with the shell, the surface of the core is coated with GaS, and then Zn is added. It is preferable that the surface of the core is coated with ZnS after being coated with GaS. It is preferable that the core and the shell do not contain Cd and In.

Abstract: A fiber-reinforced resin article with excellent mechanical properties can be provided efficiently in a short time. The method includes 3D printing including forming fibers and a resin by a 3D printer, and pressurizing the 3D printed article formed by the 3D printing step, in which the pressurizing is performed at a temperature at which the resin of the 3D printed article is softened, and heating to the temperature at which the resin is softened is performed by induction heating.

Abstract: Provided are: a method for manufacturing a molded article having high compressive strength and excellent appearance by compressing a shaped article obtained using a 3D printer, and a material containing another resin; and a manufacturing device for the same. The method for manufacturing a molded article includes: shaping a filament containing a resin and continuous reinforcing fibers using a 3D printer; and manufacturing a molded article by compressing a second material containing resin against a shaped article formed by the shaping, wherein the shaped article has a void ratio of from 5 to 30%.

Abstract: Provided are: a method for manufacturing a molded article having high compressive strength and excellent appearance by compressing a shaped article obtained using a 3D printer, and a material containing another resin; and a manufacturing device for the same. The method for manufacturing a molded article includes: shaping a filament containing a resin and continuous reinforcing fibers using a 3D printer; and manufacturing a molded article by compressing a second material containing resin against a shaped article formed by the shaping, wherein the shaped article has a void ratio of from 5 to 30%.