Abstract: Disclosed is a method for producing hydrogen, carbon, and ethylene from a methane-containing feedstock even without recycling of unreacted methane by providing a single process or system in which a methane-containing feedstock is subjected to two methane conversion steps. The method includes a first conversion step of producing hydrogen and carbonaceous materials and a second conversion step of producing acetylene from unreacted methane and hydrogen discharged from the first conversion step while maintaining a good methane conversion and suppressing coke formation, followed by separating and recovering ethylene and hydrogen produced through selective hydrogenation of acetylene.

Abstract: An apparatus of tilting a seat cushion of a vehicle, includes a tilting motor, a pinion gear, a sector gear, and a tilting link which perform the tilting operation of the seat cushion and exert a binding force in a tilted state of the seat cushion and are provided to be connected to both of one side and the other side of a seat cushion frame, and has two sector gears positioned on left and right sides and connected to each other by a connection bar so that, by strengthening a binding force of the front portion of the seat cushion, it is possible to secure the safety of passengers in the event of a collision.

Abstract: Method for synthesizing metal oxide nanocrystals. The method includes forming a precursor solution including the metal oxide cation and introducing a selected metal oxide binding virus into the solution. Electrical pulses are generated across the solution whereby highly crystalline nanowires are formed.

Abstract: Method for synthesizing metal oxide nanocrystals. The method includes forming a precursor solution including the metal oxide cation and introducing a selected metal oxide binding virus into the solution. Electrical pulses are generated across the solution whereby highly crystalline nanowires are formed.