A spectrograph with a first concave spectrographic diffraction grating is positioned to receive light from an input light source. A plurality of monitoring sets is retrieved from a database. The primary article is then permitted to shrink to a predetermined volume. Use of a novel linear programming approach reduces computational demands required for training, allowing optimized support vectors to give an optimized model of the nonlinear system. 9% by weight, and the hot melt adhesive has a surface tension of the melt, measured at a temperature of 170 DEG C.