Ingress
81Synchronous optical networking — (SONET) and Synchronous Digital Hierarchy (SDH), are two closely related multiplexing protocols for transferring multiple digital bit streams using lasers or light emitting diodes (LEDs) over the same optical fiber. The method was developed to… …
82Wastewater — For the lake in Northwestern England, see Wastwater. Public infrastructure …
83Gastrulation — of a diploblast: The formation of germ layers from a (1) blastula to a (2) gastrula. Some of the ectoderm cells (orange) move inward forming the endoderm (red). Gastrulation is a phase early in the embryonic development of most animals, during… …
84Aston Webb — Infobox Architect caption = Sir Aston Webb, portrait by Solomon Joseph Solomon, ca 1906 name = Aston Webb nationality = English birth date = birth date|1849|05|22 birth place = London death date = death date and age|1930|08|21|1849|05|22 death… …
85Transit of Venus — A transit of Venus across the Sun takes place when the planet Venus passes directly between the Sun and Earth, obscuring a small portion of the Sun s disk. During a transit, Venus can be seen from Earth as a small black disk moving across the… …
86Label Distribution Protocol — (LDP) is a protocol in which two Label Switch Routers (LSR) exchange label mapping information. The two LSRs are called LDP peers and the exchange of information is bi directional.LDP is used to build and maintain LSR databases that are used to… …
87Electrical wiring (UK) — The modern UK standards and regulations for electrical wiring no longer differ substantially from those in other European countries. However, there are a number of noteworthy national peculiarities, habits and traditions associated with domestic… …
88IP Code — The IP Code defined in international standard IEC 60529 classifies the degrees of protection provided against the intrusion of solid objects (including body parts like hands and fingers), dust, accidental contact, and water in electrical… …
89Fouling — This article is about fouling in engineering. For uses of the term foul outside technology, see Foul (disambiguation). Not to be confused with fowling. Heat exchanger in a steam power plant, fouled by macro fouling …
90egress — 1 / ē ˌgres/ n [Medieval Latin egressus, literally, act of going out, departure, from Latin, from egredi to go out, from e out + gradi to make one s way] 1: the action or right of going or coming out 2: a place or means of going out or exiting… …
