Abstract: An embodiment luggage gap cover device for a rear seat of a vehicle is provided. The rear seat includes an interlocking frame connecting a seatback of the rear seat to a seat cushion for a dive operation, and the luggage gap cover device includes a foldable cover mat on a rear surface of the seatback configured to cover a gap between the seatback and a floor plate of a luggage compartment and a support protrusion on the interlocking frame, the support protrusion being configured to push and support the cover mat in a direction of covering the gap between the seatback and the floor plate.

Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure or by comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, it is possible to produce an organic electroluminescent device having improved luminous efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.

Abstract: The present disclosure relates to managing a document to be cleaned, includes processing a request, in response to the request to store document data of a first document in a database, based on at least one of whether the first document is duplicate or whether substantive contents of the first document are a same in a relationship with a second document pre-stored in the database, whether the first document is duplicate may be determined by comparing a unique identification value and version information of the first document with a unique identification value and version information of the second document, and whether substantive contents of the first document are the same may be determined by comparing hash data of the first document with hash data of the second document.

Abstract: The present invention relates to a method for designing a cycloidal gear tooth profile of a gear shift actuator, the method designing a profile to have a backlash through a change in the radius of a rolling circle of an internal or external tooth profile of a cycloidal gear, and thus enables the smooth engagement of internal teeth and external teeth, reduces the engagement range of the internal teeth and the external teeth to have excellent durability and enable power loss to be reduced, and enables the shape machining of the gear by using general cycloidal gear machining, thereby facilitating manufacturing and being capable of improving machining precision.

Abstract: A humidifier and quick response steam generator for supplying steam to the humidifier in a humidification system is disclosed. The humidifier has a modified geometry to reduce resistance, and is multi-passage structured to uniformly arrange humidifying nozzles in an air flowing duct so that absorption length can be shortened by improved mixing, thereby enhancing humidification capability and allowing humidifying tubes to change in number. The humidifying tubes can be easily detached from humidifying steam headers for replacement allowing the number of the humidifying tubes to be adjusted according to humidifying capacity, and can be designed as thimble tubes so that pneumatic pressure loss due to installation of the humidifying system can be reduced and steam of very uniform temperature can be supplied to air flow, thereby obtaining an air flow of uniform temperature and humidity.

Abstract: A humidifier and quick response steam generator for supplying steam to the humidifier in a humidification system is disclosed. The humidifier has a modified geometry to reduce resistance, and is multi-passage structured to uniformly arrange humidifying nozzles in an air flowing duct so that absorption length can be shortened by improved mixing, thereby enhancing humidification capability and allowing humidifying tubes to change in number. The humidifying tubes can be easily detached from humidifying steam headers for replacement allowing the number of the humidifying tubes to be adjusted according to humidifying capacity, and can be designed as thimble tubes so that pneumatic pressure loss due to installation of the humidifying system can be reduced and steam of very uniform temperature can be supplied to air flow, thereby obtaining an air flow of uniform temperature and humidity.