Abstract: An embodiment of the present specification provides a method for preparing a catalyst for preparing a carbon nanotube, comprising: (a) dissolving a main catalyst precursor, a support precursor, a cocatalyst precursor and a precipitation inhibitor in a solvent to prepare a precursor solution; and (b) pyrolyzing the precursor solution by spraying the precursor solution into a reactor, wherein a mole fraction of the precipitation inhibitor to the cocatalyst precursor is 0.1 to 1.5.

Abstract: The present disclosure relates to a hair curling head including a cylindrical head main body which has an inlet through which air enters, a plurality of slots which are formed in the head main body in a longitudinal direction thereof and formed in a circumferential direction of the head main body, and an internal insert which is inserted into the head main body and configured to guide air entering through the inlet toward the slots so that the air is discharged through the slots and flows along a surface of the head main body, and a hair styling device having the hair curling head.

Abstract: According to an aspect of the present invention, there is provided an air vibration apparatus which is coupled to a blowing port of a hair dryer to vibrate air, the air vibration apparatus including: a pipe-shaped adapter which is coupled to a blowing port and into which air flows; a rotating unit which includes a pipe-shaped rotating body which is rotatably coupled to the inside of the adapter, into which the air flows from one end, and which rotates by means of the air, and a control bar coupled to the rotating body to be extended from the rotating body; and a rotating blade unit which is hinge-coupled to an end portion of the adapter by means of a hinge portion and comes in contact with the control bar to vibrate based on the hinge portion according to the rotation of the rotating body.

Abstract: The present invention relates to a synchronous camera lens module photographing in all directions with a single lens, and more particularly, to a synchronous camera lens module which replaces only a lens module of a conventional monitoring camera by providing a synchronous camera lens module using a single optical lens capable of performing wide-angle photographing to photograph in all directions with the single lens which is high economically and in efficiency and can minimize a blind zone.

Abstract: According to an aspect of the present invention, there is provided an air vibration apparatus which is coupled to a blowing port of a hair dryer to vibrate air, the air vibration apparatus including: a pipe-shaped adapter which is coupled to a blowing port and into which air flows; a rotating unit which includes a pipe-shaped rotating body which is rotatably coupled to the inside of the adapter, into which the air flows from one end, and which rotates by means of the air, and a control bar coupled to the rotating body to be extended from the rotating body; and a rotating blade unit which is hinge-coupled to an end portion of the adapter by means of a hinge portion and comes in contact with the control bar to vibrate based on the hinge portion according to the rotation of the rotating body.

Abstract: The present invention relates to a synchronous camera lens module photographing in all directions with a single lens, and more particularly, to a synchronous camera lens module which replaces only a lens module of a conventional monitoring camera by providing a synchronous camera lens module using a single optical lens capable of performing wide-angle photographing to photograph in all directions with the single lens which is high economically and in efficiency and can minimize a blind zone.

Abstract: Disclosed are an adhesive film for an organic electronic device and an encapsulant including the same, wherein the adhesive film can function to remove or block defect causes such as moisture and impurities so that the defect causes do not approach the organic electronic device, and also to minimize problems due to separation of the organic electronic device and the film and/or interfacial film delamination upon moisture removal.

Abstract: A hair dryer is disclosed. The hair dryer includes a main body which accommodates a fan, a motor and a heater, a handle which extends downward from the main body and is provided with a button, and a nozzle which is coupled to the main body and contains water or hair tonic. The nozzle includes a body, a receiving part, and a containing part. The containing part includes a container which contains water or hair tonic, and a cover which is made of a porous metal material and formed at the container by insert injection molding. Accordingly, when the hair dryer is used, water or hair tonic is ejected and supplied to the hair, thereby protecting the hair.