A side member for a heat exchanger has a portion which is adapted to preferentially break under low tension to alleviate problems caused by expansion, whilst retaining integrity under normal transport movements. The image capturing element is used for capturing an optical signal, and outputting an image signal. The vector of a force exerted by the pinion on the rack in response to the pressing member pressing the rack toward the pinion substantially intersects the axis. The method also includes associating the set of banned tags to the at least one piece of content as a policy and receiving a tag term for the at least one piece of content at the first website. Accordingly, it is possible to minimize an off current induced due to a phenomenon of electron trapping by light. The electronic device comprises a display panel, comprising a plurality of pixels; and a parallax barrier, comprising a plurality of light transmission sections and a plurality of light blocking sections.