A new and distinctive variety of an apple tree, named Irene, distinguished by an early harvest date, large fruit, typical annual double-blooming when grown in Nyssa, Oreg. A portion of an electrodes and a PTC resistor is impregnated into a flexible substrate. The wind drag on the particle is at least partially opposed by a force of the electric field on the particle. The door-locking device is electrically connected to a second energy transceiver in spaced mating relationship and electrically communicating with the first energy transceiver.