Admission to one or more shared resources in a wireless network is based on whether such admission would unduly comprise the network’s ability to meet one or more Quality-of-Sevice constraints associated with users of the shared resources. The headwall comprises a service delivery unit movable relative to a wall of the room between a storage position and a use position allowing the bed to dock to the service delivery unit to receive one or more services from the service delivery unit. Alternatively, after forming a semiconductor film over a substrate, a Ni film is deposited over the semiconductor film while heating the substrate up to 450\xb0 C. The power supply circuit includes a transformer and a voltage regulator. The diameter of the acoustic transducer is selected such that it is smaller than the diameter of the delay paths so that diffracted waves generated in the area of the edge of the acoustic transducer generate fewer parasitic echoes and surface waves on the boundary surfaces resulting in less corruption of the measured result. In some embodiments, the method may also comprise marking information on a surface of one or more of the eggs after the position of the one or more of the eggs has been adjusted.