Abstract: A polyorganosiloxane compound, a method of preparing the same, and a copolycarbonate resin comprising the same are disclosed. Particularly, a copolycarbonate resin, which may be applied to a variety of applications, and in particular, comprises a polyorganosiloxane compound used as an impact modifier, a modifier, or a comonomer of a copolycarbonate resin and has improved mechanical properties such as low-temperature impact strength, is disclosed.

Abstract: Disclosed are polycarbonate having high fluidity through inclusion of an aliphatic polyhydric alcohol-substituted diphenol compound in a polycarbonate backbone and a method of preparing the same. The polycarbonate is polymerized by comprising a diphenol mixture and a carbonate precursor, the diphenol mixture comprising an aliphatic polyhydric alcohol-substituted diphenol compound according to Formula 1 and a bisphenol compound.

Abstract: Disclosed are a terminally modified polyoxyalkylene glycol which may dramatically improve color uniformity and machinability, when applied to a polycarbonate resin transmittance, a polycarbonate resin composition comprising the same, and a light guide plate manufactured using the same.

Abstract: Disclosed is a polycarbonate resin a composition. The polycarbonate resin composition may simply and exactly improve appearance properties such as yellow index (Y. I), haze and the like, and thermal stability during a high-temperature process, and provide processability by reducing gas generation during molding, through provision of a relational formula of addition amounts of a hindered phenol-based compound and a phosphite-based compound which function as antioxidants when mixed with the polycarbonate resin.

Abstract: An actuator unit, a robot including the same, and a reducing apparatus, the actuator unit including a driving unit; a sensor unit; a control unit; and a frame unit.

Abstract: Disclosed are novel polyorganosiloxane, a polycarbonate resin composition comprising the same and a modified polycarbonate resin. Disclosed is also a novel polyorganosiloxane derivative which may be utilized in various applications and is used in particular as an impact modifier, a modifier or a comonomer of polycarbonate resin.

Abstract: Disclosed are novel polyorganosiloxane, a polycarbonate resin composition comprising the same and a modified polycarbonate resin. Disclosed is also a novel polyorganosiloxane derivative which may be utilized in various applications and is used in particular as an impact modifier, a modifier or a comonomer of polycarbonate resin.

Abstract: Provided is a system and method for controlling server usage in a peer-to-peer (P2P) based streaming service. The system to control server usage in a peer-to-peer based streaming service includes a concurrent connections number providing unit to calculate a number of peer clients concurrently connected to the peer-to-peer based streaming service; a non-transitory memory to store the number of peer clients concurrently connected to the peer-to-peer based streaming service; and a server usage controlling unit to control server usage for the peer-to-peer based streaming service based on a ratio of a variable associated with an influx rate of peer clients to the number of peer clients concurrently connected to the peer-to-peer based streaming service.

Abstract: A system to manage a buffering of a data stream for a peer client in a peer-to-peer based streaming service includes a buffering control unit including a processor configured to control pieces of the data stream to be buffered in a first buffer of the peer client, and to control one or more outputted pieces to be buffered in a second buffer of the peer client, the outputted pieces being outputted from the first buffer for play back of the data stream. A method for managing a buffering includes storing pieces of the data stream in a first buffer; storing one or more outputted pieces of the data stream in a second buffer; and transmitting one or more pieces stored in the first buffer or the second buffer.

Abstract: A system to packetize a data stream includes a piece generating unit including a processor configured to generate data pieces of the data stream, each data piece being generated during an equal time interval, and a communication unit to transmit the pieces of the data stream. A method that uses a processor to packetize a data stream includes generating, using the processor, data pieces of the data stream, each data piece being generated during an equal time interval, and transmitting the pieces of the data stream. A non-transitory computer-readable medium includes a program for instructing a computer, when executed by a processor, to perform the steps of: generating data pieces of the data stream, each data piece being generated during an equal time interval; and transmitting the pieces of the data stream.

Abstract: The present invention provides a safety unit comprising: a case; a rotary linkage disposed at one end thereof at the outside of the case and rotatably mounted at the other end thereof to the case; a force transfer shaft mounted to one side of the rotary linkage in such a fashion as to be oriented perpendicular to the rotating plane of the rotary linkage; a crank linkage rotatably mounted at one end thereof to the inner side of the case and adapted to abut against the force transfer shaft at the outer circumferential edge thereof so as to be transferred with an external force to be rotatably moved; and a support means rotatably connected to the other end of the crank linkage and adapted to allow for the rotation of the crank linkage when an external force having a value larger than a predetermined threshold value is exerted to the rotary linkage.

Abstract: Provided is a system and method for controlling server usage in a peer-to-peer (P2P) based streaming service. The system to control server usage in a peer-to-peer based streaming service includes a concurrent connections number providing unit to calculate a number of peer clients concurrently connected to the peer-to-peer based streaming service; a non-transitory memory to store the number of peer clients concurrently connected to the peer-to-peer based streaming service; and a server usage controlling unit to control server usage for the peer-to-peer based streaming service based on a ratio of a variable associated with an influx rate of peer clients to the number of peer clients concurrently connected to the peer-to-peer based streaming service.

Abstract: A wireless communication system providing wireless communication services and a terminal are provided. There is also provided a method for communicating data between a base station and a terminal in Evolved Universal Mobile Telecommunications System (E-UMTS) or Long Term Evolution (LTE) System evolved from UMTS, particularly, a method for transferring maximum data with minimum radio resources by controlling a Hybrid Automatic Repeat request (HARQ) operation in a dynamic radio resource allocation or scheduling.

Abstract: The present invention provides a safety unit comprising: a case; a rotary linkage disposed at one end thereof at the outside of the case and rotatably mounted at the other end thereof to the case; a force transfer shaft mounted to one side of the rotary linkage in such a fashion as to be oriented perpendicular to the rotating plane of the rotary linkage; a crank linkage rotatably mounted at one end thereof to the inner side of the case and adapted to abut against the force transfer shaft at the outer circumferential edge thereof so as to be transferred with an external force to be rotatably moved; and a support means rotatably connected to the other end of the crank linkage and adapted to allow for the rotation of the crank linkage when an external force having a value larger than a predetermined threshold value is exerted to the rotary linkage.