Abstract: A method of manufacturing quantum dots includes placing nickel powder having a certain particle size, a precursor material, and an organic solvent into a container, maintaining a pressure in the container at a certain value, and synthesizing quantum dots by stirring the nickel powder, the precursor material, and the organic solvent in the container.

Abstract: A bushing for a trailing arm may include an inner rod having a plate shape, a body in which a central portion of the inner rod is disposed, a reinforcing material disposed to surround an outer surface of the body, a first elastic member in which the reinforcing material is disposed, a second elastic member disposed around the first elastic member, and an outer steel member disposed to surround the first elastic member and the second elastic member. The reinforcing material may be disposed between the outer surface of the body and an inner surface of the first elastic member.

Abstract: A method of manufacturing quantum dots includes placing nickel powder having a certain particle size, a precursor material, and an organic solvent into a container, maintaining a pressure in the container at a certain value, and synthesizing quantum dots by stirring the nickel powder, the precursor material, and the organic solvent in the container.

Abstract: A composite solid electrolyte where self-discharge at room temperature is fundamentally prevented by adding a molten salt powder, which is an electric insulator at room temperature, or applying a molten salt passivation layer. The composite solid electrolyte includes: molten salt powder particles having electrical insulating properties at room temperature; and solid electrolyte powder particles on which surfaces thereof the molten salt powder particles are combined.