1. Mohorovicic discontinuity-the boundary between the Earth's crust and the underlying mantle; the Mohorovicic discontinuity averages 5 miles down under oceans and 20 miles down under continents.
PAR â Project Authorization Request An approved PAR is needed before official work is begun on a standard project. It serves as the work authorization by the IEEE-SA Standards Board. NesCom examines PARs and makes recommendations to the IEEE-SA Standards Board regarding their approval. An approved PAR is valid for 4 years. The PAR is referred to when the standard is submitted to RevCom for approval.
A media access control address (MAC address), also called physical address, is a unique identifier assigned to network interfaces for communications on the physical network segment.MAC addresses are used as a network address for most IEEE 802 network technologies, including Ethernet and WiFi.Logically, MAC addresses are used in the media access control protocol sublayer of the OSI reference model.AC addresses are used as a network address for most IEEE 802 network technologies, including Ethernet and WiFi. Logically, MAC addresses are used in the media access control protocol sublayer of the OSI reference model.