Apparatus and method for assessing odors, comprises an electronic nose, to be applied to an odor and to output a structure identifying the odor; a neural network which maps an extracted structure to a first location on a pre-learned axis of odor pleasantness; and an output for outputting an assessment of an applied odor based on said first location. The fiber or fabric includes a flexible, electrically conductive fiber, and a layer comprising an electrochromic material disposed on and surrounding the flexible, electrically conductive fiber. Further, the rules require the same relative communication interfaces be available between the dynamic areas and static areas when the bit stream is relocated. The inverter may be configured to generate an AC output voltage and the AC component has a frequency that is a harmonic of a fundamental frequency of the AC output voltage, such as a third harmonic of the fundamental frequency of the AC output voltage. The first position is such that the working conveyor surface is substantially laterally positioned away from the output position while the second position is such that a portion of the working conveyor surface is positioned above the output position. Devices are also disclosed for maintaining the alignment or levelness of top cards in stacks of cards having embossing or other raised features that cause uneven stacking.