Abstract: Provided are a vehicle sensor cleaning apparatus and a control method thereof. The vehicle sensor cleaning apparatus includes a liquid sprayer configured to spray washer fluid on at least one sensor arranged in a vehicle, an air sprayer configured to spray air on the at least one sensor, a liquid controller configured to control washer fluid spraying of the liquid sprayer, and an air controller configured to control air spraying of the air sprayer.

Abstract: Disclosed are a method and apparatus for reusing wastewater. The method for reusing wastewater disclosed herein includes: generating a mixed wastewater by mixing multiple types of wastewater (S20); performing a first purification by passing the mixed wastewater through a flocculation-sedimentation unit (S40); performing a second purification by passing an effluent of the flocculation-sedimentation unit through a membrane bioreactor (MBR) (S60); performing a third purification by passing an effluent of the MBR through a reverse-osmosis membrane unit (S80); and reusing an effluent of the reverse-osmosis membrane unit as cooling water or industrial water (S100).

Abstract: A method for providing a game is disclosed, wherein the method includes receiving a first game participation request including off-line avatar player selection from an on-line player device, wherein the off-line avatar player is preset in an off-line game region and plays the game, wherein the on-line player device is of an on-line player present in on-line game region, wherein allocating a first authority to the on-line player device, wherein the first authority allows the on-line player device to receive game-related information from the off-line avatar player device and to send gaming-related commands including a betting request to the off-line avatar player device; and allocating an access authority to the on-line player device and the off-line avatar player device to access an on-line platform to facilitate communication between the on-line player device and the off-line avatar player device.

Abstract: A method of searching for content in a touch screen device includes: receiving selection signals of first content and second content; extracting contents existing between the first content and the second content, and displaying two or more representative contents, the number of which corresponds to the number of contents that may be simultaneously displayed on a screen, among the extracted contents; and repeating the above processes by using the displayed two or more representative contents.

Abstract: A method of searching for content in a touch screen device includes: receiving selection signals of first content and second content; extracting contents existing between the first content and the second content, and displaying two or more representative contents, the number of which corresponds to the number of contents that may be simultaneously displayed on a screen, among the extracted contents; and repeating the above processes by using the displayed two or more representative contents.