Abstract: A knee joint rehabilitation apparatus for a wheelchair includes a rehabilitation apparatus frame having a height corresponding to a length of each of legs of a patient sitting on the wheelchair; an upper leg support disposed at an upper end of the rehabilitation apparatus frame and supporting upper legs of the patient thereon while the patient is sitting on the wheelchair; a lower leg support pivotably connected to the upper leg support, wherein the lower legs of the patient are seated and supported on the lower leg support; and an exercise control unit disposed on the rehabilitation apparatus frame and configured to allow the lower leg support to pivot around a connection portion between the lower leg support and the upper leg support such that the patient performs rehabilitation exercise of the knee joint thereof while sitting on the wheelchair.

Abstract: Disclosed is an exoskeleton-type rehabilitation robot system, including: a body part provided on a chair in which a user sits and provided with a robot arm capable of moving left or right based on the user seated on the chair; a conversion part configured to convert a position of the robot arm with respect to the body part; a driving part configured to articulate the robot arm with respect to the body part; and a controller configured to detect a change in a position of the robot arm and control a left or right driving mode of the driving part according to the position of the robot arm. In accordance with such a configuration, the exoskeleton-type rehabilitation robot system of the present invention is provided integrally with a chair, thereby having excellent space utilization. In addition, the user's initial preparation for rehabilitation training is simple, which can improve efficiency.

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifespan characteristics can be provided.

Abstract: A tire with a resonator for noise reduction includes: a main groove unit which has a plurality of main grooves formed to extend along a circumferential direction of the tire; a resonance unit which is formed between a pair of the main grooves; a neck unit which is provided to communicate the resonance unit with one of the pair of main grooves; and a cuff unit which is provided to connect the resonance unit and the other of the pair of main grooves.

Abstract: A tire with a resonator for noise reduction includes: a main groove unit which has a plurality of main grooves formed to extend along a circumferential direction of the tire; a resonance unit which is formed between a pair of the main grooves; a neck unit which is provided to communicate the resonance unit with one of the pair of main grooves; and a cuff unit which is provided to connect the resonance unit and the other of the pair of main grooves.

Abstract: The disclosed technology relates generally to a pneumatic tire, and more particularly to a pneumatic tire capable of enhancing running performance on wet surfaces (wet performance) without reducing of running performance on dry surfaces (dry performance) by having an improved groove structure. In one aspect, a pneumatic tire includes a tread, a sidewall and a bead, wherein the tread has a block and a groove formed thereon. First inclined portions inclined toward the bottom of the groove on the side of the groove are alternately installed in a longitudinal direction of the groove.