Abstract: Provided is an operating method of an advertisement management device, the operating method including: based on log data of a plurality of users collected from a certain game, setting at least one group for the certain game; registering advertisement information to be provided to the at least one group; requesting a plurality of platform servers capable of providing advertisements to provide the advertisement information for each of the at least one group; obtaining, from the plurality of platform servers, feedback information of advertisements provided for each of the at least one group; and based on the feedback information, performing management of the advertisement information registered for each of the at least one group.

Abstract: A disk rotor assembly for a vehicle may include an adaptor adapted to be mounted on a hub and to receive torque of a wheel, a disk rotor generating a braking force, a transmitter engaging the adaptor with the disk rotor and adapted to transmit the torque received by the adaptor to the disk rotor or to transmit the braking force generated by the disk rotor to the adaptor, and engaging member for engaging the adaptor, the disk rotor, and the transmitter altogether.

Abstract: A disk rotor unit for a vehicle includes an adapter portion of which an end portion may be connected to a wheel hub, wherein a plurality of cam protrusions may be formed to an exterior circumference of the other end portion of the adapter portion, a disk portion of which a plurality of support protrusions corresponding to the cam protrusions may be formed to an interior circumference thereof, wherein each support protrusion may be inserted between adjacent cam protrusions for assembling the disk portion with the adapter portion, and an assemble member engaged with the other end portion of the adapter portion for assembling the disk portion to the adapter portion.

Abstract: A disk rotor assembly for a vehicle may include an adaptor adapted to be mounted on a hub and to receive torque of a wheel, a disk rotor generating a braking force, a transmitter engaging the adaptor with the disk rotor and adapted to transmit the torque received by the adaptor to the disk rotor or to transmit the braking force generated by the disk rotor to the adaptor, and engaging member for engaging the adaptor, the disk rotor, and the transmitter altogether.

Abstract: A disc-rotor having an adaptor and a disc combined with the adaptor and braked by a caliper, may include the disc having a binding hole formed in the center thereof, a ring-shaped supporting member that may be formed at an interior circumference of the disc and in which a first bolt hole may be formed at the interior circumference thereof, the adaptor having both sides thereof open wherein a flange closely contacting the supporting member may be mounted at a side of the both sides and a second bolt holes may be formed at a circumference of the flange, and a fixing bolt that may be inserted in the first bolt hole and the second bolt hole such that the supporting member may be detachably engaged with the adaptor.

Abstract: A disk rotor unit for a vehicle includes an adapter portion of which an end portion may be connected to a wheel hub, wherein a plurality of cam protrusions may be formed to an exterior circumference of the other end portion of the adapter portion, a disk portion of which a plurality of support protrusions corresponding to the cam protrusions may be formed to an interior circumference thereof, wherein each support protrusion may be inserted between adjacent cam protrusions for assembling the disk portion with the adapter portion, and an assemble member engaged with the other end portion of the adapter portion for assembling the disk portion to the adapter portion.