A field emission device, in accordance with a preferred embodiment, includes a cathode electrode, a gate electrode, a separator, and a number of emissive units composed of an emissive material. Both indices are greater than one. The flange surfaces are inclined at the same angle from a base end portion to a tip end portion thereof. The method may also comprise facilitating connection of the first user account and the second user account via the electronic service. Preferably, the anchor is used with a pedestal head of a raised-flooring system and has a nub extending from the bottom surface of each of the arms of the base to fit within holes in the pedestal head and thereby secure the anchor to the pedestal head.