cascade


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cascade

1. a waterfall or series of waterfalls over rocks
2. 
a. a consecutive sequence of chemical or physical processes
b. (as modifier): cascade liquefaction
3. 
a. a series of stages in the processing chain of an electrical signal where each operates the next in turn
b. (as modifier): a cascade amplifier
4. the cumulative process responsible for the formation of an electrical discharge, cosmic-ray shower, or Geiger counter avalanche in a gas
5. the sequence of spontaneous decays by an excited atom or ion

cascade

See cosmic rays.

Cascade

An artificial waterfall that breaks the water as it flows over stone steps, usually found in a garden setting.

Cascade

 

in landscaping, a natural or artificial waterfall descending over terraced steps. In park architecture cascades are created by building at various levels of bodies of water and of steps and terraces over which the water descends. Examples of famous cascades are those in Italy, in the Villa d’Este in Tivoli (1550–72, architect P. Ligorio) and the Villa Aldobrandini in Frascati (1598–1604, architects G. della Porta and C. Maderna), as well as those in the park in Petrodvorets.

In the figurative sense a cascade is a rapid irrepressible flowof something—for example, words or sounds.

cascade

[ka′skād]
(computer science)
A series of actions that take place in the course of data processing, each triggered by the previous action in the series.
(electricity)
An electric-power circuit arrangement in which circuit breakers of reduced interrupting ratings are used in the branches, the circuit breakers being assisted in their protection function by other circuit breakers which operate almost instantaneously. Also known as backup arrangement.
(electronics)
(engineering)
An arrangement of separation devices, such as isotope separators, connected in series so that they multiply the effect of each individual device.
(geology)
A landform structure formed by gravity collapse, consisting of a bed that buckles into a series of folds as it slides down the flanks of an anticline.
(hydrology)
A small waterfall or series of falls descending over rocks.
(cell and molecular biology)
A molecular system that is capable of self-propagation or amplification.
(physics)
The emission of a series of photons by a quantum system, such as an atomic nucleus or a laser, in an excited state, accompanying transitions of the system to successively lower excited states, until the system reaches the ground state.

cascade

(compiler)
A huge volume of spurious error-messages output by a compiler with poor error recovery. Too frequently, one trivial syntax error (such as a missing ")" or "}") throws the parser out of synch so that much of the remaining program text, whether correct or not, is interpreted as garbaged or ill-formed.

cascade

(messaging)
A chain of Usenet followups, each adding some trivial variation or riposte to the text of the previous one, all of which is reproduced in the new message; an include war in which the object is to create a sort of communal graffito.

cascade

(networking)
A collection of interconneced networking devices, typically hubs, that allows those devices to act together as a logical repeater.

cascade

A connected series of devices or images. It often implies that the second and subsequent device takes over after the previous one is used up. For example, cascading tapes in a dual-tape backup system means the second tape is written after the first one is full. In a PC, a second IRQ chip is cascaded to the first, doubling the number of interrupts.
References in periodicals archive ?
To accommodate this, a cascade technology has been developed, which consists of three or four lower tanks designed as a washing cascade.
Boise Cascade will continue to purchase its electricity from Ontario Hydro.
To stimulate a cascade in this stable element, he has to "activate" it with the appropriate low-energy X-rays.
USEC's project team has frozen the design of the centrifuge machine that will be deployed over the next several months in the initial Lead Cascade, which is expected to be in operation by mid-year.
I have worked with the Cascade Land Conservancy on a number of conservation projects over the past 10 years," said King County Executive Ron Sims.
Cascade Server makes it possible for web managers of any department or user-level to manage a complex website with ease and efficiency.
Cascade Natural Gas Corporation (NYSE:CGC) is a local distribution company providing natural gas service to approximately 235,000 residential, commercial, and large industrial customers in the states of Washington and Oregon.
Since January 2006, the following higher education institutions selected Hannon Hill's Cascade Server to solve their WCM needs: Belmont University, Bowdoin College, Brandeis University, Campbell University, Carnegie Mellon University, Clemson University, Concordia College, Cornell College, Eastern University, Embry-Riddle Aeronautical University, Gardner-Webb University, Heinz School of Public Policy, Hofstra University, Queen's University School of Business (Canada), Saint Joseph's University, University of Detroit, Mercy, University of Missouri - Columbia, Vassar College and Willamette University.
Under the terms of the agreement, MDU Resources will acquire Cascade for $26.
Earlier today, Cascade reported results for the first quarter of 2006, with profits growing 3% over the same quarter last year.
Cascade expects to release earnings for first quarter results after the close of market on Tuesday, April 25, 2006.
Cascade Financial Corporation (Nasdaq:CASB), parent company of Cascade Bank, today announced plans to participate in a Pacific Northwest Panel at the Cohen Bros.