Search results
Results From The WOW.Com Content Network
Mesh is a measurement of particle size often used in determining the particle-size distribution of a granular material. For example, a sample from a truckload of peanuts may be placed atop a mesh with 5 mm openings. When the mesh is shaken, small broken pieces and dust pass through the mesh while whole peanuts are retained on the mesh.
A mesh size of 1.2 millimetres (0.047 in) stops mosquitoes, and smaller, such as 0.6 millimetres (0.024 in), stops other biting insects such as biting midges/no-see-ums. [13] A mosquito bar is an alternate form of a mosquito net. It is constructed of a fine see-through mesh fabric mounted on and draped over a box-shaped frame.
So a net 1.5 in height will provide a trellis or espalier between 1.80 and 1.90 m (so the post sizes should be around 2.2 and 2.5 m), and this would be the ideal support system measurement for most cucumber open field varieties. The ideal size for square mesh is approx. 25x25 cm.
For example, in order to obtain small invertebrates measuring 50 to 1500 μm, a net mesh size between 25 and 50 μm diameter should be selected, which is sufficient to effectively filter only the target organism. [3] However, in a eutrophic water condition, a plankton net with a mesh larger than 100 μm should be chosen to avoid clogging the ...
Measures given here are along the diagonal. Small passerines are typically captured with 16-30 mm mesh, while larger birds, like hawks and ducks, are captured using mesh sizes of ~127 mm. Net dimensions can vary widely depending on the proposed use. Net height for avian mist netting is typically 1.2 - 2.6 m.
The entire bag of the net is generally constructed from a lightweight mesh to minimize damage to delicate butterfly wings. Other types of nets used in insect collecting include beat nets, aquatic nets, and sweep nets. Nets for catching different insects have different mesh sizes. Aquatic nets usually have bigger, more 'open' mesh.
Tangle nets, also known as tooth nets, are similar to gillnets except they have a smaller mesh size designed to catch fish by the teeth or upper jaw bone instead of by the gills. [33] Trammel: Demersal species, fish and crustaceans. A trammel is a fishing net with three layers of netting that is used to entangle fish or crustacea. [34]
Particle size is a notion introduced for comparing dimensions of solid particles (), liquid particles (), or gaseous particles ().The notion of particle size applies to particles in colloids, in ecology, in granular material (whether airborne or not), and to particles that form a granular material (see also grain size).