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A truck with a traditional camper shell A modern LEER 122 camper shell. A camper shell (also canopy, and sometimes truck topper, pap cap, truck cap, bed cap, box cap, or simply shell) [1] is a small housing or rigid canopy used as a pickup truck or coupe utility accessory.
Measurements made above and below the canopy are used to determine canopy light interception at five angles, from which LAI is computed using a model of radiative transfer in vegetative canopies based on Beer's law. The LP-80 calculates LAI by means of measuring the difference between light levels above the canopy and at ground level, and ...
Canopy mapping is the process whereby the positions and size of the branches within the canopy are mapped in three-dimensional space. [22] [23] [24] It is a labor-intensive process that usually reserved for only the most significant specimens. This is usually done from a set position or a series of positions within the tree.
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Engineering fits are generally used as part of geometric dimensioning and tolerancing when a part or assembly is designed. In engineering terms, the "fit" is the clearance between two mating parts, and the size of this clearance determines whether the parts can, at one end of the spectrum, move or rotate independently from each other or, at the other end, are temporarily or permanently joined.
In biology, the canopy is the aboveground portion of a plant cropping or crop, formed by the collection of individual plant crowns. [1] [2] [3] In forest ecology, the canopy is the upper layer or habitat zone, formed by mature tree crowns and including other biological organisms (epiphytes, lianas, arboreal animals, etc.). [4]
A pop-up canopy. A number of frame tents at the Portland Farmers Market. Semi-permanent gazebos at a holiday resort. A pop-up canopy (or portable gazebo or frame tent in some countries) is a shelter that collapses down to a size that is portable. Typically, canopies of this type come in sizes from five feet by five feet to ten feet by twenty feet.
The GMT800 was a General Motors full-size truck platform used from the 1999 through 2009 model years. It is the foundation for the Chevrolet Silverado and GMC Sierra pickups; and the derivative GMT820 and GMT830 versions for the Chevrolet Tahoe/GMC Yukon and the Chevrolet Suburban/GMC Yukon XL full-size SUVs, respectively.