Abstract: The invention provides a method for improving sarcopenia of a subject in need thereof by using Phellinus linteus, in which the method includes administering an effective dose of composition to the subject, and the composition includes Phellinus linteus (NITE BP-03321 and BCRC 930210) as an effective substance. By using the aforementioned composition including an extract of a fermented product of the Phellinus linteus and/or its derivative, diameters of myotubes, amounts of muscles and muscle muscular endurance can be maintained, thereby improving sarcopenia.

Abstract: A water filter system comprising a container configured to contain water, a lid configured to attach to the container, a filter element configured to filter the water and movable within the container, and a plunger coupled to the filter element and movable through the lid. The water filter system is at least one of powered by a mechanical force directly from a user or self-powered and is not electrically powered.

Abstract: A water filter system comprising a container configured to contain water, a lid configured to attach to the container, a filter element configured to filter the water and movable within the container, and a plunger coupled to the filter element and movable through the lid. The water filter system is at least one of powered by a mechanical force directly from a user or self-powered and is not electrically powered.

Abstract: A position control method of an optical pickup head of an optical disc drive is provided. The optical disc drive has an optical pickup head for reading data from an optical disc and a step index for controlling the movement of the optical pickup head. The position control method includes: calculating a first position information of the optical pickup head according to the step index; reading an address information from the optical disc, calculating a second position information of the optical pickup head according to the address information; determining whether a difference between the first position information and the second position information is greater than a predetermined value; updating the step index when the difference is not greater than the predetermined value; moving the optical pickup head to an initial position when the difference is greater than the predetermined value, and setting the step index as zero.