Abstract: A passive flow modulation device for a machine defining an axial direction and a radial direction, the passive flow modulation device including: a first ring with a first coefficient of thermal expansion; a second ring disposed coaxially with the first ring and positioned at least partially inward of the first ring along the radial direction, spaced from the first ring along the axial direction, or both, the first ring, the second ring, or both defining at least in part one or more passages, the second ring with a second coefficient of thermal expansion that is less than the first coefficient of thermal expansion to passively modulate a size of the one or more passages during operation.

Abstract: Systems and methods are disclosed for cutting a food item when preparing it to be served to a customer. In some implementations, the cutting system may include a cover that may be used to at least partially surround a portion of a the cutting system. The cover may include one or more doors, drawers, or other movable components that may be used to engage the cutting assembly of the cutting system by activating one or more sensors located along or proximate to the path traveled by the movable component. The movable component may activate the sensor when the movable component has appropriately positioned the food item under the cutting assembly to be cut. Additionally, the cover may include one or more user-engageable switches that may be used to selectively engage cutting assembly when the movable component of the cover is appropriately positioned to be cut by the cutting assembly.