The present invention provides a high-capacity sealed nickel-metal hydride storage battery superior in high-current discharge, without extending the injection time of an electrolyte. At a predeterminable point in time, the valve element is controlled by a discharging process of the piezo actuator from a position in which it rests against the valve seat to a predetermined position located at a distance from the valve seat. The information processing apparatus compares the first and second trees subjected to the height adjustment and the order shuffling with each other to determine combinations of an instruction of the first tree and an instruction of the second tree. The fraction is useful to treat a disorder associated with abnormally elevated glucose levels in a subject by administering to the subject a therapeutically effective amount of the extract or a pharmaceutical composition containing the extract.