A generational garbage collector utilizes a pool-based heap to store objects dynamically generated at runtime. In a first mode, a direct current bus receives power from a turbogenerator output via a rectifier where turbogenerator revolutions per unit time ) or an electrical output level of a turbogenerator output meet or exceed a minimum threshold. The methods can be applied to a broad range of feeders: for domestic pets, livestock, zoo animals and other managed animals. As the cover swings back to close the manhole cover, the ramp reverses the linear translation and the cover returns back to the frame. The invention also concerns solvent-free or emulsion-type silicone compositions comprising the \u2261Si-Vi POS, the crosslinking agent \u2261Sl-H POS and the platinum catalyst among others. The items are gripped by two sets of fingers.