Abstract: The present invention provides a pharmaceutical composition for prevention or treatment of a stress disease and depression, the pharmaceutical composition be safely useable without toxicity and side effects by using an extract of leaves of Vaccinium bracteatum Thunb., which is natural resource of Korea, so that the reduction of manufacturing and production costs and the import substitution and export effects can be expected through the replacement of a raw material for preparation with a plant inhabiting in nature.

Abstract: A battery cell strength testing jig includes a lead gripper in which an electrode lead drawn out from a side portion of a battery cell is fixed. The battery cell strength testing jig further includes a cell fixing member in which the battery cell is fixed. The cell fixing member is installed to be movable in a thickness direction of the battery cell. A relative displacement occurs between a cell body portion and the electrode lead of the battery cell when the cell fixing member is moved.

Abstract: The present invention relates to a jig for evaluating a buffer pad. The jig includes a first plate configured to be positioned on one surface of the buffer pad and configured to press the buffer pad; a second plate configured to be positioned on another surface of the buffer pad and configured to press the buffer pad from the other surface; and a magnet member configured to be positioned between the first plate and the second plate. A recessed portion, which is recessed to allow the magnet member to be disposed, is defined at an edge of at least one of the first plate and the second plate.

Abstract: Provided is an apparatus for diagnosing a crack in a battery pack, and a battery pack and a vehicle including the same. The apparatus includes a sensing unit configured to generate a vibration signal indicating time-dependent changes in vibration of the battery pack and a processor. The processor generates spectral density data using the vibration signal. The processor detects a plurality of peaks from the spectral density data, and diagnoses whether the battery pack is cracked or not based on the plurality of peaks.

Abstract: Provided is an apparatus for diagnosing a crack in a battery pack, and a battery pack and a vehicle including the same. The apparatus includes a sensing unit configured to generate a vibration signal indicating time-dependent changes in vibration of the battery pack and a processor. The processor generates spectral density data using the vibration signal. The processor detects a plurality of peaks from the spectral density data, and diagnoses whether the battery pack is cracked or not based on the plurality of peaks.