Abstract: In described examples, a microelectromechanical system (MEMS) includes a first element and a second element. The first element is mounted on a substrate and has a first contact surface. The second element is mounted on the substrate and has a second contact surface that protrudes from the second element to form an acute contact surface. The first element and/or the second element is/are operable to move in: a first direction, such that the first contact surface comes in contact with the second contact surface; and a second direction, such that the second contact surface separates from the first contact surface.

Abstract: Apparatus for reducing the mean weight of articles of a soft material, for example cheese, in a flow (1), including a first weighing device (2) for weighing the articles; a flow splitter for splitting the flow (1) into a first flow (3) of articles with individual weights less than an acceptable minimum, a second flow (5) each with a weight greater than the acceptable minimum but less than a predetermined amount in excess, and a third flow (4) each with a weight above the acceptable minimum plus the predetermined amount in excess; a cutter (6) for removing the predetermined amount of material from each of the articles in the third flow (4); a second weighing device (8) for weighing individual articles in the second flow (5) and those in the flow (7) leaving the cutter (6); and a controller for controlling the splitting of the original flow leaving the first weighing device (2) into the respective first, second and third flows.