Abstract: A pouch-type battery case according to an embodiment of the invention may accommodate an electrode assembly, in which electrodes and separators are alternately stacked. The pouch-type battery case may include: a pair of recess parts, each of which has a recessed shape; a pair of terraces that are disposed around the pair of recess parts and are inclined downward in a direction closer to each other in a state; in which the battery case is unfolded; and a bridge disposed between the pair of recess parts, configured to connect the pair of recess parts to each other, having a pair of connection surfaces formed to be inclined upward from a bottom surface of each of the pair of recess parts in a direction closer to each other. In the state in which the battery case is unfolded, an angle formed by the pair of terraces may be an obtuse angle.

Abstract: The present invention relates to a method of controlling a flexible thermoelectric element to provide dynamic thermal therapy, and to a dynamic thermal therapy device, wherein the flexible thermoelectric element has a plurality of thermoelectric modules, each corresponding to a plurality of regions arranged sequentially, wherein the plurality of thermoelectric modules can selectively perform either exothermic or endothermic operation on the plurality of regions by control of a current.

Abstract: Disclosed herein is a wireless earphone system. The wireless earphone system includes wireless earphones and a charging case. Each of the wireless earphones includes: a connection unit configured to electrically connect with a charging case; and an internal circuit unit configured to receive a mode switching signal, directing a voice output mode to be switched, applied from the charging case via the connection unit, and to output a sound signal, wirelessly received from an electronic device, to the charging case via the connection unit without outputting the sound signal to a corresponding speaker by itself.

Abstract: The present invention relates to an apparatus for analyzing sloshing behavior of a fluid contained in a water pool and a method thereof, the apparatus including a user input module, a first calculation module, a comparison determination module, a second calculation module, a third calculation module, a fourth calculation module, a display module, and a control module, whereby there is an advantage such that it is possible to easily, quickly, and accurately perform an analysis of sloshing behavior of the fluid contained in a large water pool such as a spent nuclear fuel storage pool for cooling and storing nuclear fuel assemblies used in nuclear power generation.

Abstract: Disclosed herein is a wireless earphone system. The wireless earphone system includes wireless earphones and a charging case. Each of the wireless earphones includes: a connection unit configured to electrically connect with a charging case; and an internal circuit unit configured to receive a mode switching signal, directing a voice output mode to be switched, applied from the charging case via the connection unit, and to output a sound signal, wirelessly received from an electronic device, to the charging case via the connection unit without outputting the sound signal to a corresponding speaker by itself.

Abstract: An earphone device is provided. The earphone device includes a pair of earphone modules. At least one of the earphone modules includes a microphone, a speaker, and a housing configured to accommodate the microphone and the speaker in an inner space thereof. The housing includes a path hole to allow the inner space to communicate outside of the housing to facilitate sound outside of the housing to enter the microphone or sound generated by the speaker to travel outside of the housing, and a partition element to partition the path hole of the housing into a first passageway and a second passageway, the first and second passageways being isolated from each other. The microphone or the speaker is housed inside the partition element. The speaker is spaced apart from the microphone at a predetermined interval and arranged to be side by side with the microphone.

Abstract: Earphones are provided. A microphone and a speaker are arranged side by side with respect to the direction facing a user's earhole, and a passageway through which a sound moves between the microphone and the outside and a passageway through which a sound moves between the speaker and the outside are divided to be blocked from each other. The earphones can provide good productivity and enhance reliability of products by reducing a defect rate.

Abstract: A distributed multi-drop base station/repeating unit using an extension of analog optical transmission in a mobile communication system. The base station unit comprises a main unit for performing functions of a mobile communication base station, and a plurality of remote units cascaded to the main unit on a sector basis.

Abstract: Disclosed is an environmentally-friendly training hand grenade and a method of manufacturing the same. The training hand grenade is advantageous in that it is not necessary to recover fragments, generated by the explosion of the training hand grenade after use, because a bomb body of the training hand grenade is made of naturally degradable mineral matters, such as barite, tungsten, silica, and yellow earth, thereby many soldiers may be trained for a relatively short time using the training hand grenade. Furthermore, the training hand grenade is made of environmentally-friendly materials, and thus, its use is conducted without causing pollution. In addition, the training hand grenade is made of the mineral matters, thereby ensuring high explosiveness and explosive sound effect when the training hand grenade is exploded, and preventing soldiers from being injured by the fragments in use.

Abstract: Disclosed is an environmentally-friendly training hand grenade and a method of manufacturing the same. The training hand grenade is advantageous in that it is not necessary to recover fragments, generated by the explosion of the training hand grenade after use, because a bomb body of the training hand grenade is made of naturally degradable mineral matters, such as barite, tungsten, silica, and yellow earth, thereby many soldiers may be trained for a relatively short time using the training hand grenade. Furthermore, the training hand grenade is made of environmentally-friendly materials, and thus, its use is conducted without causing pollution. In addition, the training hand grenade is made of the mineral matters, thereby ensuring high explosiveness and explosive sound effect when the training hand grenade is exploded, and preventing soldiers from being injured by the fragments in use.

Abstract: A distributed multi-drop base station/repeating unit using an extension of analog optical transmission in a mobile communication system. The base station unit comprises a main unit for performing functions of a mobile communication base station, and a plurality of remote units cascaded to the main unit on a sector basis.