Changinaviation Co., Ltd.

MD Healthcare Inc.

Yongbeeat, Inc.

Chang Mo Moon

Ji Ho Moon

Yoon-Keun Kim

Sung Su Kim

An aircraft controlled by compressed air according to an embodiment of the present invention comprises: a fuselage () having main wings () on both sides thereof; a first nozzle () mounted to the roof of the fuselage (); second nozzles () mounted on the top surfaces of the main wings (); a first tank () disposed in the fuselage () or the main wings () and storing compressed air; and a main control valve () for controlling the compressed air so that the compressed air is provided to the first nozzle () or the second nozzles ().

Aircraft controlled by compressed air

A vertical takeoff and landing aircraft using a hybrid electric propulsion system and a control method therefor according to an embodiment of the present invention: performs control such that, during vertical takeoff and landing of an aircraft (), a generator (), a power management device (), and a battery management system () simultaneously provide power to a motor (); and performs control such that, during a cruise flight or transition flight of the aircraft (), the thrust of a second propeller () is increased and a battery () of the battery management system () is charged with redundant power generated by the generator ().

Vertical take-off and landing aircraft using hybrid-electric propulsion system and the control method

A vertical take-off and landing aircraft using a hybrid electric propulsion system, according to an embodiment of the present invention, includes: a first control step (S) of changing a destination when an engine (), a power generator (), an engine control unit (), a power management device (), a control unit (), a battery management system (), a main battery () and the like malfunction, thereby causing a normal flight to be difficult; a second control step (S) of performing control so that an aerial vehicle () glides to a point (T), at which same has entered a first space (CEP-) required for landing or a wider second space (CEP-) considered safe, and maintains lift and has minimized flight air resistance after passing through the point (T); a third control step (S) of performing control so that lift is increased and performing control so that a nose cone is switched into an upward direction; and a fourth control step (S) of performing control so that lift is gradually reduced, and controlling a second variable-pitch control device () so that thrust does not act on the aerial vehicle at the moment the aerial vehicle lands, and thus the present invention can vertically land while minimizing impact to be applied to the aerial vehicle.

Vertical take-off and landing aircraft using hybrid electric propulsion system

The present invention relates to an extracellular vesicle derived fromand a use thereof, and more particularly, to a composition for alleviating, preventing or treating an inflammation disease and a cancer, which comprises an extracellular vesicle derived from, which may effectively inhibit various inflammation disease, as an active ingredient, and the like.

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Seoul, South Korea

Chang Mo Moon