An automated system controls operation of a filtration system. The alloy optionally further comprises, in weight percentages based on total alloy weight, at least one of: up to 3 cobalt; up to 3 molybdenum; up to 6 iron; 0. The second board has second connecting portions electrically connected to the first connecting portions of the first board, third connecting portions for external electrical connection, and connecting wirings electrically connecting the second connecting portions and the third connecting portions. Provided internally in the screw hole there is an engagement contour which consists of contour valleys and contour peaks partially running in a horizontal and radial peripheral direction on the wall of the screw hole. For example, the opening mechanism may take the form of paired magnets of like polarities. The system comprises variety of means for transferring picture image data recorded by a variety of digital cameras to an image server installed in a DPE or the like and a variety of accessing means for enabling the picture image data stored in the image server to be accessed.