This article describes the long-distance telephone plant in the central part of Brazil with special reference to the toll board in Rio de Janeiro.
U R I N G 1937 a 60-mile toll cable was completed between Toronto and Barrie which, in several respects, is unique.
In the past decade, several countries have introduced flexible routing schemes in their domestic network.
In the past decade, several countries have introduced or proposed flexible routing schemes for their national networks.
We consider the classic queueing problem in telephony: obtaining the probability that a customer who attempts to use a phone finds no circuit available
It has become customary through the years to classify linear circuits as either active or passive.
All of the long-haul, broadband transmission facilities of the Bell System, and many of the short-haul microwave radio systems, employ a common unit in their terminal multiplexes.
Remarkably little is known about reactions which take molecular compounds to solid state materials, in large part because the chemical intermediates have only rarely been isolated and studied.
Convection in binary fluid mixtures with negative separation ratio begins with a linear instability to an oscillatory state of flow.
The locations of the transmembrane helices in the twelve subunits of beef heart cytochrome oxidase were predicted with a modified form of the von Heljne-Blomberg-hydrophobicity scale.
