Abstract: Provided is a system for providing social network service (SNS) and a method for setting relationship between users of mobile terminals. The system may include a reception unit to receive location information on a user terminal allowing the location information to be shared in response to a friend request from the user terminal, a user terminal identification unit to identify at least one other user terminal present within a preset distance based on the location information on the user terminal and allows location information to be shared, a user information transmission unit to identify and send user information on the other user terminal to the user terminal, and a relationship setting unit to set a relationship between users of the user terminal and the other user terminal when the user information on the other user terminal is selected in the user terminal.

Abstract: A method of an electronic device is provided. The method includes receiving signals from adjacent base stations comprising a first base station and a second base station, respectively, detecting a first synchronization signal and a second synchronization signal for the first base station among the received signals, estimating a first signal corresponding to the detected first synchronization signal and second synchronization signal, eliminating the first signal among the signals received from the adjacent base stations, and detecting a second signal for the second base station.

Abstract: A variable valve lift apparatus of an engine includes a first body rotated at within a preset angle range by rotating a high-speed cam coupled to a camshaft, a second body coupled to the first body or decoupled from the first body and rotated within a preset angle range by rotating a low-cam coupled to the camshaft when the second body is decoupled from the first body, a latching pin provided retractably forward of the first body such that the first body is coupled to or decoupled from the second body, and an actuating unit to retractably actuate the latching pin. The degree of the lift of the valve is variably controlled in two stages of high-speed and low-speed modes through the rotary motion of the high speed cam or low speed cam by coupling or decoupling the first and second bodies to or from each other.

Abstract: A remote control system and method for a parking brake of a vehicle are provided. The system includes a controller configured to communicate with a server and to operate an electronic parking brake (EPB) disposed within the vehicle. A wireless terminal is configured to communicate with the server and execute application that operates the electronic parking brake. When the vehicle is pushed and moved, a plurality of pressure sensors are configured to measure a pressure applied at a front portion and a rear portion of the vehicle, and the electronic parking brake is remotely released or operated by the controller based on a signal form the wireless terminal.

Abstract: A gene expression cassette capable of producing psicose at high yield with high stability, a GRAS (Generally recognized as safe) microorganism, a method of producing the enzyme by using the GRAS microorganism, and a method of producing the psicose by using the GRAS microorganism and enzyme are provided.

Abstract: A method for forming a printed circuit board (PCB) includes: depositing, a first time, a photo imageable solder resist (PSR) ink over a top surface and a bottom surface of the PCB including a conductive pattern; drying, a first time, the PCB on which the PSR ink has been deposited for the first time; depositing, a second time, the PSR ink over the top surface and the bottom surface of the PCB; and drying, a second time, the PCB on which the PSR ink has been deposited for the second time.

Abstract: A user terminal connected to a system to provide social network service (SNS) includes a transmission unit configured to send a friend request and location information of the user terminal, and receive user information of at least one other user terminals, and a display control unit configured to control a display of the user terminal to display a current location of a user of the user terminal and the user information of the at least one other user terminal present within a predetermined distance based on received location information of the other user terminal. Within the display control unit, a particular region of the display is set as a current location of the user terminal.

Abstract: A linear compressor can prevent leakage of a magnetic force by changing the construction of a linear motor. As the construction of the linear motor is changed, a mechanical spring constant is set smaller in consideration of a magnetic spring constant, so that the size of springs supporting a piston in the reciprocal linear motion direction can be reduced and components supporting the springs can be removed. Therefore, the linear compressor achieves a small size/a light weight. With the characteristics of the linear motor construction, the linear compressor can suppress a stroke spreading influence and easily expand a compression capacity according to a load.

Abstract: Provided is a system and method for managing images album-by-album. A communication terminal includes a storage device, a management unit configured to manage images stored on the storage device, album-by-album, and a loading unit configured to load images contained in an album into a server corresponding to a host system on a per album basis in response to a user's setting of sharing attribute of the album as shared with another person. An access permission to the album is granted to the another person so that the another person shares the album with the user.

Abstract: A variable valve lift apparatus of an engine includes a first body rotated at within a preset angle range by rotating a high-speed cam coupled to a camshaft, a second body coupled to the first body or decoupled from the first body and rotated within a preset angle range by rotating a low-cam coupled to the camshaft when the second body is decoupled from the first body, a latching pin provided retractably forward of the first body such that the first body is coupled to or decoupled from the second body, and an actuating unit to retractably actuate the latching pin. The degree of the lift of the valve is variably controlled in two stages of high-speed and low-speed modes through the rotary motion of the high speed cam or low speed cam by coupling or decoupling the first and second bodies to or from each other.

Abstract: Disclosed is a formulation for coating a medical device which comprises an anti-scarring agent and a biocompatible polymer for regulating the release of the anti-scarring agent, wherein the mass ratio of the biocompatible polymer to the anti-scaring agent is from 100:15 to 100:0 in which 0 is not included. The present formulation can be advantageously used for coating medical devices for a sustained release of the agents from the device, thus effectively minimizing or preventing the formation of scar tissues resulted from the use of implantable and non-implantable medical devices.

Abstract: A remote control system and method for a parking brake of a vehicle are provided. The system includes a controller configured to communicate with a server and to operate an electronic parking brake (EPB) disposed within the vehicle. A wireless terminal is configured to communicate with the server and execute application that operates the electronic parking brake. When the vehicle is pushed and moved, a plurality of pressure sensors are configured to measure a pressure applied at a front portion and a rear portion of the vehicle, and the electronic parking brake is remotely released or operated by the controller based on a signal form the wireless terminal.

Abstract: The present invention relates to an implantable medical appliance with means of migration prevention, which is either coated with a biocompatible polymer or coated with a biocompatible adhesive, or injected with a biocompatible adhesive after the insertion of the implantable medical appliance into a living body, or equipped with a foldable anchor. The implantable medical appliance of the present invention characterized by the means equipped on the surface of the same to prevent intratissue migration can be effectively used for such implantable medical appliance as a sealed source used for brachytherapy, a fiducial marker used for increasing accuracy of IGRT, a clip for surgical operation, and a transponder for the generation of radio frequency, etc, since the migration of the medical appliance is prevented after the insertion.

Abstract: Disclosed is a method of pre-treating molybdenite containing copper. The method includes mixing molybdenite containing copper with sulfuric acid, performing a sulfation reaction through a heating process after the mixing process is performed, performing a water leaching process by putting and stirring water after the sulfation reaction is performed, separating a cake from liquid after the water leaching process is performed, and drying the separated cake.

Abstract: A persimmon leaf-derived polysaccharide fraction, a preparation method thereof, and use thereof, the persimmon leaf-derived polysaccharide fraction including, based on the total weight of the polysaccharide fraction, 70-90 wt % of neutral sugar and 10-30 wt % of uronic acid.

Abstract: There is provided a single-stage forward-flyback converter capable of increasing power factor and power conversion efficiency while performing power factor correction and constant current control in a single-stage circuit. The converter includes: a power converting unit including a transformer having a primary winding receiving input power and a secondary winding magnetically coupled to the primary winding to receive power induced thereto, and converting the input power in a forward scheme and a flyback scheme; a balancing unit maintaining balance between a power level by the forward scheme of the power converting unit and a power level by the flyback scheme thereof; and a path providing unit clamping the power by the forward scheme of the power converting unit and the power by the flyback scheme thereof to provide a power transfer path, wherein the power converting unit selectively operates the forward scheme according to a voltage level of input power.

Abstract: There are provided a single stage forward-flyback converter, and a power supply apparatus capable of increasing power factor correction and power conversion efficiency. The single stage forward-flyback converter includes: a forward converter unit including a transformer having a primary winding receiving input power and a first secondary winding magnetically coupled to the primary winding to receive power induced thereto, and converting the power in a forward scheme; and a flyback converter unit sharing the transformer, including a second secondary winding, and converting the power in a flyback scheme, wherein the forward converter unit is selectively operated according to a voltage level of the input power.

Abstract: The present invention relates to a method for treating various waste petroleum into eco-friendly solid so that leaching of oil would not occur. The method of the present invention can treat radioactive waste petroleum as well as various waste petroleum, thereby stabilizing waste petroleum chemically and physically, wherein the method comprises mixing waste petroleum with a sulfuric acid and a nitric acid; adding sodium hydroxide, thereby carrying out a polymerization reaction to produce solid particles; colloidizing a mixture obtained by uniformly stirring the solid particles; adding a diisocyanate compound in reactor, thereby carrying out a subsequent polymerization reaction to obtain a new compound in the form of powder; discharging a generated gas into the atmosphere; and filling the powder into a resin as a filling material and compression molding and reclaiming the filled powder.

Abstract: Provided is a system for providing social network service (SNS) and a method for setting relationship between users of mobile terminals. The system may include a reception unit to receive location information on a user terminal allowing the location information to be shared in response to a friend request from the user terminal, a user terminal identification unit to identify at least one other user terminal present within a preset distance based on the location information on the user terminal and allows location information to be shared, a user information transmission unit to identify and send user information on the other user terminal to the user terminal, and a relationship setting unit to set a relationship between users of the user terminal and the other user terminal when the user information on the other user terminal is selected in the user terminal.

Abstract: A linear compressor according to the present invention can prevent leakage of a magnetic force by changing the construction of a linear motor. As the construction of the linear motor is changed, a mechanical spring constant is set smaller in consideration of a magnetic spring constant, so that the size of springs supporting a piston in the reciprocal linear motion direction can be reduced and components supporting the springs can be removed. Therefore, the linear compressor achieves a small size/a light weight. With the characteristics of the linear motor construction, the linear compressor can suppress a stroke spreading influence and easily expand a compression capacity according to a load.