Abstract: A modified conjugated diene-based polymer having high linearity and improved compounding properties is provided. The modified conjugated diene-based polymer includes phosphor, sulfur and chlorine in specific amount ranges, and the degree of branching is controlled, and accordingly, if applied to a rubber composition, tensile strength and viscoelasticity may be excellent, and processability may be markedly improved.

Abstract: A sealed sleeve installed at an insertion coupling portion in a state in which a first pipe and a second pipe are insertion coupled to each other in order to seal couple the first pipe having a first outer diameter and a first inner diameter and the second pipe having a second outer diameter and a second inner diameter larger than the first outer diameter includes: a pillar shaped-main body having a main body central shaft; a through-hole formed using the main body central shaft as a central shaft on the main body and having an inlet as a second pipe side opening in an installation state and an outlet as a first pipe side opening in an installation state, wherein in the through-hole, a pressing portion that applies a sealing pressure to the insertion coupling portion is formed in a portion of an inner wall, and an inner diameter of the pressing portion is smaller than the second outer diameter.

Abstract: Provided is a method and system for inducing to participate in an event. According to an embodiment of the present disclosure, the method performed by a computing device for providing a community service for an event participant comprises registering a user who enters an event venue where an event is in progress as a member of a community service that is generated only while the event is in progress, giving a mission set to a terminal of the user at a time the event is in progress, wherein a performance time of a mission included in the mission set is determined so that the mission set corresponds to a timeline of a content of the event, and determining whether an input time of sensing data measured by the terminal corresponds to the performance time of the mission to provide a reward corresponding to whether the mission is performed to an account of the user registered in the community service.

Abstract: Provided is a method of uploading data to a data server with minimum manipulations and downloading or retrieving the uploaded data by using a user's mobile terminal or a user-designated recipient's mobile terminal. A data upload method used by a computer system includes: monitoring whether a data upload shortcut command is input; selecting an object to be uploaded when an input of the data upload shortcut command is sensed; and transmitting an upload file, which consists of data of the selected object, to a data server.

Abstract: Provided is a method of uploading data to a data server with minimum manipulations and downloading or retrieving the uploaded data by using a user's mobile terminal or a user-designated recipient's mobile terminal. A data upload method used by a computer system includes: monitoring whether a data upload shortcut command is input; selecting an object to be uploaded when an input of the data upload shortcut command is sensed; and transmitting an upload file, which consists of data of the selected object, to a data server.

Abstract: Provided is a method of uploading data to a data server with minimum manipulations and downloading or retrieving the uploaded data by using a user's mobile terminal or a user-designated recipient's mobile terminal. A data upload method used by a computer system includes: monitoring whether a data upload shortcut command is input; selecting an object to be uploaded when an input of the data upload shortcut command is sensed; and transmitting an upload file, which consists of data of the selected object, to a data server.