Critical zone

critical zone

[′krid·ə·kəl ′zōn]
(fluid mechanics)
In fluid flow, the area on a graph of the Reynolds number versus friction factor indicating unstable flow (Reynolds number 2000 to 4000) between laminar flow and the transition to turbulent flow.
(ordnance)
Area over which a bombing plane in horizontal-flight or glide bombing must maintain straight flight so that the bombsight can be operated properly and bombs dropped accurately.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Critical zone

Any location in a building with contaminant sources sufficiently strong enough that proper control of ventilation, with no margin for error, is crucial for maintaining the immediate comfort of occupants. Critical zones may include conference rooms, smoking rooms, cafeterias, washrooms, auditoriums, or anywhere occupancy can rapidly change.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Another 21 essays review recent developments in such areas of Earth planetary science as atmospheric escape and the evolution of close-in exoplanets, the destruction of the North China Craton in the Mesozoic, global patterns of carbon dioxide variability from satellite observations, soil functions: connecting Earth's critical zone, marsh processes and their response to climate change and sea-level rise, and exoplanet clouds.
Chiong said an area inside what she described as critical zone was now no-man's land.
Weighing in as the heaviest patient is Luke, 32, who at 20 stone 3lbs is in the 'critical zone'.
Weighing in as the heaviest patient is Luke, 32, who, at 20 stone 3lbs, is in the "critical zone".
Rittick identifies Teknaf as a "critical zone" to have underground water as there is not any suitable underground water there.
As seen from the figure, there are three zones for merging roads; namely, self-zone, control zone and critical zone.
Dillon Ragar and Nagam Gill, both with the Boulder Creek Critical Zone Observatory (CZO) in Boulder, Colorado, begin wiring a new met tower at the historic BI climate site.
Second, between the ages of 25 and 27, if you are unmarried, you are in a very critical zone and pitiable.
Red Rocks Community College (Colo.) students who are planning careers in science, technology, engineering, and math fields are gaining valuable experiences through Research Experience for Community College Students, a summer research internship program at CU-Boulder sponsored by the National Science Foundation and the Boulder Critical Zone Observatory.
The study is part of a National Science Foundation project on the environmental effects of agriculture in the United States and an effort to determine whether the benefits of using corn as a biofuel outweigh the costs and was conducted as part of the NSF's Intensively Managed Landscapes Critical Zone.
El-Shenety believes that the rates of public debt are not worrying; yet it will reach the critical zone no matter what, because foreign debt is going to reach more than 50%.

Full browser ?