A method and system for relieving forging induced residual stresses in a rotor forging balances a pre-spin machine with the forging mounted thereon at a first rotational speed and then pre-spins the forging with it mounted on the machine at a substantially greater second rotational speed. Requestors may place an order to purchase goods or services from one or more vendors. The estimation accounts for properties of the wireless cellular transmitter and wireless local area network receiver as well as operational characteristics of the wireless cellular and wireless local area network connections. The bond cap includes oppositely oriented leg members bonded to the respective rearward edges of the shell members so as to be essentially flush with the upper and lower shell members. The block portion has an oval cross section and the engaging space of the hanging member is complementary to it that only at a specific angle the blocking member is able to be engaged and disengaged with the hanging member. The light-emitting material contains a light-emitting substance which is spatially constricted and confined in an order of two dimensions or more, thus providing a high efficient organic light-emitting device based on emission of phosphorescence from an excited triplet state.