Abstract: A natural zeolite block for improving water quality that is capable of being built in rivers, streams, and reservoirs having point and non-point pollutant sources to purify the water polluted by pollutants, to remove the eutrophication in the water to prevent the occurrence of green and red tides, and to consistently purify heavy metals and all kinds of harmful substances flowing into the water and to a method for manufacturing the same.

Abstract: A natural zeolite block for improving water quality that is capable of being built in rivers, streams, and reservoirs having point and non-point pollutant sources to purify the water polluted by pollutants, to remove the eutrophication in the water to prevent the occurrence of green and red tides, and to consistently purify heavy metals and all kinds of harmful substances flowing into the water and to a method for manufacturing the same.

Abstract: Provided is a method of providing a payment service according to various example embodiments. The method of providing a payment service may include acquiring a payment request for an item from a user, identifying whether the acquired payment request satisfies designated conditions, and omitting an additional authentication operation in response to the payment request satisfying the designated conditions and providing payment completion information corresponding to the payment request. Other example embodiments are possible.

Abstract: Disclosed are a system and a service method and system a service based on an activity of a user. A service method may include receiving location information of a terminal when a mode of the terminal is an exercise mode, measuring a moving path of the terminal and an exercise amount of a user based on the location information, calculating an activity amount of the user based on the moving path and the exercise amount, and providing a digital content to the terminal based on the activity amount of the user.

Abstract: Disclosed is a service method and system for providing a service based on a moving path of a user. A service method configured as a computer may include receiving location information from a terminal of a user in response to a determination that a mode set by the user is an exercise mode, measuring a moving path of the user based on the location information, managing target information corresponding to at least one of a type of exercise that the user is doing and a predetermined path, and providing the target information to the user based on the measured moving path.

Abstract: Disclosed are a system and a service method for providing a digital content based on a moving path of a user. A service method may include storing and managing data in which coordinates of a map are converted to Geo-Hash coordinates according to a Geo-Hash algorithm, receiving location information from a terminal of a user, converting the location information to the Geo-Hash coordinates, and providing, to the terminal, information about digital content allocated to a Geo-Hash area including adjacent Geo-Hash coordinates based on the Geo-Hash coordinates. The terminal may be configured to determine the digital content to be provided to the terminal based on information about the digital content allocated to the Geo-Hash area and new location information of the terminal.

Abstract: Disclosed are a system and a service method and system a service based on an activity of a user. A service method may include receiving location information of a terminal when a mode of the terminal is an exercise mode, measuring a moving path of the terminal and an exercise amount of a user based on the location information, calculating an activity amount of the user based on the moving path and the exercise amount, and providing a digital content to the terminal based on the activity amount of the user.

Abstract: Disclosed are a system and a service method for providing a digital content based on a moving path of a user. A service method may include storing and managing data in which coordinates of a map are converted to Geo-Hash coordinates according to a Geo-Hash algorithm, receiving location information from a terminal of a user, converting the location information to the Geo-Hash coordinates, and providing, to the terminal, information about digital content allocated to a Geo-Hash area including adjacent Geo-Hash coordinates based on the Geo-Hash coordinates. The terminal may be configured to determine the digital content to be provided to the terminal based on information about the digital content allocated to the Geo-Hash area and new location information of the terminal.

Abstract: Disclosed is a service method and system for providing a service based on a moving path of a user. A service method configured as a computer may include receiving location information from a terminal of a user in response to a determination that a mode set by the user is an exercise mode, measuring a moving path of the user based on the location information, managing target information corresponding to at least one of a type of exercise that the user is doing and a predetermined path, and providing the target information to the user based on the measured moving path.

Abstract: A method of managing an online reward content according to on/off-line activities performed by a user, provides a method of managing and editing the issued online reward content and a rewards album, exchanging the obtained online reward content into digital money usable in a digital content store server, purchasing contents, or exchanging for another content with another user, and therefore, provides convenience to the user for managing online content.

Abstract: A system and a method of issuing a digital content according to an activity performed by a user, using a display device and a service providing server, the method including providing a selecting interface on the display device, which includes user-selectable activities. The display device monitors performance of the activity to generate activity execution data, and transmits the activity execution data to the service providing server. The service providing server determines whether to issue a digital content based on the activity data, and transmits the result to the display device. Finally, the display device provides a content displaying interface that displays the issued digital content.