A link actuating device connects an output member to an input member through three or more link mechanisms for alteration in posture. The thermally active shape memory device is thermally transitioned and changed in geometric shape as a result of thermal communication of the shape memory device with either or both of the controlled temperature zones to produce a transitioned thermally active shape memory device. Preferred compositions are dependent in part on the screen tooling material. Each slave can include a high-side power transistor having a drain connected to the input terminal and a source connected to the intermediate node, and a low-side power transistor having a source connected to ground and a drain connected to the intermediate node. The electrical brush can be applied in various electrical machineries for efficiently collecting and transferring machine current over a long working period. The extracted portions of frame data vary according to the location of the given frame within the sequence, and the composite image is representative of the content of the media file.