Abstract: The present invention relates to a nose flute capable of improving brain sensation and cognition and, more specifically, to a nose flute having a novel structure, which is a musical instrument that can be played using nasal air, so that brain sensation and cognition can be improved while sound width, sound and sound tone can be accurately implemented with accurate notes. To this end, the present invention comprises: a front body part in close contact with the body of a user; a sound generation part for generating sound of a preset height while the nasal air generated by the user flows therein through one end thereof and is discharged through the other end thereof; and a rear body part for fixing positions of the front body part and the sound generation part, and sealing the sound generation part so that same is not exposed to the outside.

Abstract: The present invention relates to a nose flute capable of improving brain sensation and cognition and, more specifically, to a nose flute having a novel structure, which is a musical instrument that can be played using nasal air, so that brain sensation and cognition can be improved while sound width, sound and sound tone can be accurately implemented with accurate notes. To this end, the present invention comprises: a front body part in close contact with the body of a user; a sound generation part for generating sound of a preset height while the nasal air generated by the user flows therein through one end thereof and is discharged through the other end thereof; and a rear body part for fixing positions of the front body part and the sound generation part, and sealing the sound generation part so that same is not exposed to the outside.

Abstract: A smart deep breathing meditation device according to an embodiment of the present invention includes a housing body having an accommodation structure for accommodating a smartwatch and a contact surface, which is in contact with and attached to a part of a user's body and formed on one side surface thereof, a wire mounting portion formed on an upper surface or each of both side surfaces of the housing body and having a structure on which a necklace wire worn around the user's neck is mounted, a vibration providing unit which is mounted on the contact surface of the housing body, is operated by a control signal of a control unit, and provides an inspiration induction signal and an expiration induction signal by applying vibrations to skin of the part of the user's body, and the control unit which is mounted inside the housing body, wirelessly interworks with the smartwatch and a smartphone, receives heart rate data and breathing data of the user detected from the smartwatch in real time to control an operatio

Abstract: There is disclosed a hard disk drive and a method of controlling a flying height of a magnetic head of the hard disk drive. A method of controlling a flying height of the magnetic head in a hard disk drive according to an embodiment of the present invention may include (a) providing a FOD sensitivity through a FOD test; (b) reading a preamble signal of a servo pattern; (c) calculating a flying height of the magnetic head from the preamble signal; and (d) applying FOD power for adapting the flying height of the magnetic head to a target flying height of the magnetic head based on the calculated flying height of the magnetic head and the FOD sensitivity.

Abstract: There is disclosed a hard disk drive and a method of controlling a flying height of a magnetic head of the hard disk drive. A method of controlling a flying height of the magnetic head in a hard disk drive according to an embodiment of the present invention may include (a) providing a FOD sensitivity through a FOD test; (b) reading a preamble signal of a servo pattern; (c) calculating a flying height of the magnetic head from the preamble signal; and (d) applying FOD power for adapting the flying height of the magnetic head to a target flying height of the magnetic head based on the calculated flying height of the magnetic head and the FOD sensitivity.