Abstract: A battery control apparatus, a battery control method and an energy storage system including the battery control apparatus are disclosed. The disclosed battery control apparatus includes a first battery pack, a second battery pack, a first switch connected in series to the first battery pack between the first terminal and the second terminal, a second switch connected in series to the second battery pack between the first terminal and the second terminal, and a control unit. The control unit is configured to turn on both the first switch and the second switch when a voltage difference between the first battery pack and the second battery pack at a time point at which both the first switch and the second switch are turned off is less than a threshold voltage.

Abstract: Provided is a battery control apparatus, a battery control method and an energy storage system including the battery control apparatus. The battery control apparatus according to an embodiment of the present disclosure includes a first battery pack, a second battery pack, a first switch connected in series to the first battery pack between the first terminal and the second terminal, a second switch connected in series to the second battery pack between the first terminal and the second terminal, and a control unit. The control unit is configured to turn on both the first switch and the second switch when a voltage difference between the first battery pack and the second battery pack at a time point at which both the first switch and the second switch are turned off is less than a threshold voltage.

Abstract: An apparatus for enhancing an efficiency of an antenna in a mobile terminal includes an antenna matcher whose setting is changed under control of a controller, the antenna matcher coupled to the antenna, a sensing unit for sensing whether or not a user holds the mobile terminal and a holding pattern in which the user holds the mobile terminal, and a controller for controlling the setting of the antenna matcher according to whether or not the user holds the mobile terminal and the holding pattern.

Abstract: An apparatus for enhancing an efficiency of an antenna in a mobile terminal includes an antenna matcher whose setting is changed under control of a controller, the antenna matcher coupled to the antenna, a sensing unit for sensing whether or not a user holds the mobile terminal and a holding pattern in which the user holds the mobile terminal, and a controller for controlling the setting of the antenna matcher according to whether or not the user holds the mobile terminal and the holding pattern.

Abstract: A tray for splicing optical ribbon fibers capable of storing and organizing ribbon fibers splices and excess length, improving accommodation density for the optical ribbon fiber by using new splice arrangement plate structure, including a tray main body having a plurality of supporting portions protruded on an outer side thereof; a plurality of inlet portions for providing inlet paths for protection tubes, each of the inlet portions being formed on the outer side; a pair of stacking bars having through holes rotatably supported by one of the supporting portions to stack another tray main body; a plurality of splice arrangement plates for organizing optical ribbon fibers, each of the splice arrangement plates being disposed on the main body; a number of organizing portions for fixing the optical ribbon fibers and arranging excess lengths of the optical ribbon fibers, each of said splice arrangement plates comprising a plurality of the organizing portions; and a plurality of covers for covering the splice arran