Methods are provided that operate on raw dissociation data and dissociation curves to generate calibrations of the detected data and to further improve analysis of the data. At the first step, the plate-like workpiece of substantial rectangular shape is press formed into a gutter-like shape. A position analyzer recognizes the position of the object and the adjusting device can set the screen to a predetermined position according to the result recognized by the position analyzer. A handle portion having an actuating assembly is attached to the proximal end of the shaft for imparting movement of the first and second jaw members from a first open position wherein the jaw members are disposed in spaced relation relative to one another to a second clamping position wherein the jaw members cooperate to grasp tissue therebetween.