Abstract: Proposed is a detachable lighting device including lighting units. The positions of the lighting units are changeable along a mounting rail within an interior space. The number of the lighting units and the mounting positions of the lighting units are adjustable. Accordingly, occupants within the interior space adjust light distribution as desired by each occupant.

Abstract: The present invention relates to: a pyrene derivative compound having a specific structure; and a high efficiency organic light-emitting device employing the pyrene derivative compound in a light emitting layer and thus having excellent light-emitting characteristics. The organic light-emitting device according to the present invention can be configured as a high efficiency organic light-emitting device having excellent light-emitting characteristics by employing the pyrene derivative compound having the specific structure as a host in the light emitting layer, and thus can be usefully applied industrially in lighting devices, as well as various display devices such as flat, flexible, and wearable displays.

Abstract: The present invention relates to novel mesylate salt of N-(5-(4-(4-((dimethylamino)methyl)-3-phenyl-1H-pyrazol-1-yl)pyrimidine-2-ylamino)-4-methoxy-2-morpholinophenyl)acrylamide, a novel crystalline form thereof, and a process for preparing the same. More specifically, the present invention relates to mesylate salt of N-(5-(4-(4-((dimethylamino)methyl)-3-phenyl-1H-pyrazol-1-yl)pyrimidine-2-ylamino)-4-methoxy-2-morpholinophenyl)acrylamide, which is excellent in stability, solubility, and bioavailability when it is administered not only alone but also in combination with other drugs and which has a high purity, a crystalline form thereof, and a process for preparing the same.

Abstract: An organic light-emitting device according to the present invention uses a pyrene derivative compound having a characteristic structure as a host in a light-emitting layer to realize a long-lifespan and high-efficiency organic light-emitting device having excellent light-emitting characteristics in terms of lifespan and luminescence efficiency. Accordingly, the organic light-emitting device can be usefully applied, in the industrial aspect, for various display devices such as flat panel, flexible, and wearable displays, as well as lighting devices.

Abstract: Proposed is a detachable lighting device including lighting units. The positions of the lighting units are changeable along a mounting rail within an interior space. The number of the lighting units and the mounting positions of the lighting units are adjustable. Accordingly, occupants within the interior space adjust light distribution as desired by each occupant.

Abstract: The present invention relates to a novel heterocyclic compound usable in an organic light-emitting device and to an organic light-emitting device comprising same, wherein [chemical formula A] is as described in the detailed description of the invention.

Abstract: A kiosk for providing footcare product recommendations comprises a base, a foot mat positioned in a recess in the base, a removable cover plate positioned over the recess for covering at least a portion of the foot mat, the cover plate comprising an opening leaving at least a portion of the foot mat uncovered, and one or more spacers located in the recess for positioning the foot mat in the recess.

Abstract: An escalator handrail washing device according to one embodiment of the present invention comprises: a case that accommodates an escalator handrail and a washing unit; a self-generation unit, arranged in the case, for converting kinetic energy of the escalator handrail into electric energy; and a communication unit for transferring information on an operating state of the escalator handrail to a control center. The washing unit includes a plurality of rollers. At least one roller is rotated without power, by frictional force generated by contacting a surface of the escalator handrail, in a first direction which is a reverse direction of a preset rotating direction of the escalator handrail. Other rollers are rotated by rotational force of the at least one roller. The other rollers can sterilize or wash the escalator handrail while rotating.

Abstract: A kiosk for providing footcare product recommendations comprises a base, a foot mat positioned in a recess in the base, a removable cover plate positioned over the recess for covering at least a portion of the foot mat, the cover plate comprising an opening leaving at least a portion of the foot mat uncovered, and one or more spacers located in the recess for positioning the foot mat in the recess.