Abstract: A catalyst for removing nitrogen oxides and a manufacturing method thereof are provided. The catalyst for removing nitrogen oxides according to embodiments of the present invention is manufactured by mixing and grinding a metal catalyst and a zeolite. The zeolite has a carbon layer formed on the surface of the zeolite. The manufacturing method of a catalyst for removing nitrogen oxides according to embodiments of the present invention comprises preparing a zeolite, forming a carbon layer on the surface of the zeolite, and mixing and grinding the zeolite having the carbon layer with a metal catalyst.

Abstract: A method for controlling driving of a hybrid electric vehicle includes collecting driving data while the hybrid electric vehicle is driven, determining whether the hybrid electric vehicle enters a first mode corresponding to emergency driving of the hybrid electric vehicle or a second mode corresponding to control in preparation for the emergency driving, and controlling the hybrid electric vehicle in accordance with a mode that the hybrid electric vehicle enters among the first mode and the second mode.

Abstract: A seat for a vehicle may include a unit foam that is formed so as to have a magnetic property due to a magneto-rheological fluid, and magnetic bodies that are provided on both sides of the unit foam, respectively, to form a magnetic field passing through the unit foam.

Abstract: A seat for a vehicle may include a unit foam that is formed so as to have a magnetic property due to a magneto-rheological fluid, and magnetic bodies that are provided on both sides of the unit foam, respectively, to form a magnetic field passing through the unit foam.

Abstract: A wheelchair type robot for use as a walking aid wherein an outer skeleton to be worn on the lower body of a user is combined with a lift and a drive part in a wheelchair form. The drive part is furnished with a drive motor and wheels that are installed on a main frame. The lift is furnished with an outer linear guide that is fixed and joined with the main frame, an inner linear guide that can move up and down along same, an upper chair part that connects with the inner linear guide to enable up and down motion, and a lower chair part that connects with the outer linear guide such that unfolds if the inner linear guide descends and folds if it ascends.

Abstract: A wheelchair type robot for use as a walking aid wherein an outer skeleton to be worn on the lower body of a user is combined with a lift and a drive part in a wheelchair form. The drive part is furnished with a drive motor and wheels that are installed on a main frame. The lift is furnished with an outer linear guide that is fixed and joined with the main frame, an inner linear guide that can move up and down along same, an upper chair part that connects with the inner linear guide to enable up and down motion, and a lower chair part that connects with the outer linear guide such that unfolds if the inner linear guide descends and folds if it ascends.

Abstract: A method for controlling a repeatable following error of a hard disk drive, which includes a digital signal processor programmed with a feedback control operation algorithm and a repetition control algorithm. The method includes obtaining data corresponding to position error signals from sectors detected along a track of a disk recording medium during a track following mode; sequentially storing the data corresponding to the position error signals in a table; and obtaining a correction value for compensating a repeatable following error for a particular sector by processing the data corresponding to a position error signal of said particular sector and the data corresponding to the position error signals of preceding and succeeding sectors read from the table through the repetition control algorithm and feedback control algorithm.