Abstract: A battery management system includes: a battery management unit; battery management integrated circuits (ICs) configured to receive measurement data from battery modules; a first wireless communication device configured as a primary aggregator to receive wireless transmissions of the measurement data from the battery management ICs and communicate the measurement data received by the first wireless communication device to the battery management unit; and a second wireless communication device configured as a secondary aggregator to monitor the wireless transmissions of the measurement data from the battery management ICs to the primary aggregator and communicate the measurement data received by the second wireless communication device to the battery management unit. The battery management unit is configured to manage the battery modules based on the measurement data provided to the battery management unit.

Abstract: The present invention relates to a composition for forming a composite polymer film, a method for preparing the composition for forming a composite polymer film, a composite polymer film and a method for preparing the composite polymer film. The composition for forming a composite polymer film comprises: a fluorine-based polymer solution comprising a fluorine-based polymer; and polyvinylidene fluoride nanoparticles dispersed in the fluorine-based polymer solution. The method for preparing the composition for forming a composite polymer film comprises the steps of: preparing a fluorine-based polymer solution comprising a fluorine-based polymer; and dispersing polyvinylidene fluoride nanoparticles in the fluorine-based polymer solution. The composite polymer film comprises: a polymer matrix formed from a fluorine-based polymer; and polyvinylidene fluoride nanoparticles dispersed in the polymer matrix.

Abstract: Disclosed is an endoscope apparatus. The endoscope apparatus of the present invention includes: an endoscope including a flexible insertion section to be inserted into a human body; a flexible channel attached to the insertion section so that a part forms a passage in a longitudinal direction of the insertion section; and an assistant arm movably inserted into the passage and manipulated by a control device, and the assistant arm includes forceps capable of gripping a human body tissue, and a bending section bent by the control device to pull the human body tissue griped by the forceps.

Abstract: A photoresist composition comprises a photosensitive resin including a blend of a photoresist polymer and a dye resin, a photo-acid generator, and a solvent, in which an amount of the dye resin is in a range from about 20 weight percent to about 80 weight percent based on a total weight of the photosensitive resin.

Abstract: A photoresist composition includes a photosensitive copolymer having a repeating unit from a vinyl sulfone monomer, and a solvent.