barrier zone

barrier zone

[′bar·ē·ər ‚zōn]
(botany)
In a tree, new tissue formed by the cambium after it has been wounded; serves as both an anatomical and a chemical wall.
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References in periodicals archive ?
Tenders are invited for Construction Of 34 Nos Of 1 Sq Mtr Thick Brick Pillar To Support Workings Near Barrier Zone Between The Workings Of No 7 Pit Of Lower Kenda Colliery & Old Abandoned Workings Of Pure Kenda Colliery Under Kenda Area.
ii) a pair of barrier zones respectively disposed at either longitudinal side of the central zone, between the central zone and the opposing containment member edges, the barrier zones and the containment member edges forming respective upstanding longitudinal barrier cuffs, and wherein the central zone has a greater air flow according to the Air Permeability Test than the barrier zone and the barrier zone has a greater hydrohead according to the Hydrostatic Head Pressure Test than the central zone.
Also, the length of the barrier zone is similar (but these designs have inherently different transition zones, as illustrated in Fig.
Marlboro is considering a barrier zone around schools and other youth facilities of 1,000 feet.
The double-barrier design has what Tuerk calls a 3 L/D "relaxation" zone after the main barrier zone that reduces melt temperature.
Panama is the ideal location for maintaining a biological barrier zone that keeps screwworm flies from reentering North and Central America from South America.
In addition, a vehicle safety loop sensor can be used to monitor traffic flow and prevent an active barrier from moving while a vehicle is passing through the barrier zone.
When several mGCW units are strategically located on site, the overlapping zones of hydraulic influence can create a reactive barrier zone to control plume migration.
is said to combine the melting efficiency of a barrier screw with intensive, chaotic mixing in a second barrier zone with an undulating root profile.
We denote length of barrier zone by a, the length of no-barrier zone by b, the total length of period by L (= a + b), the height of barrier by h, the height of flight by H, the width of barrier c and the width of channel by W.
The absorbent barrier structure is substantially free of a film and comprises a reservoir zone and a barrier zone at least partially located between the absorbent core and the reservoir zone.
The apparent geometric design variables are the length o f barrier zone (A zone) a, the length of no-barrier zone (B zone) b, the total length L (= a + b), the height of barrier h, the height of flight H, the helical angle and the parameters for the flow conditions are the drag velocity (screw rotation speed) [V.