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The fog collector is made up of three major parts: the frame, the mesh netting, and the trough or basin. The frame supports the mesh netting and can be made from a wide array of materials from stainless steel poles to bamboo. The frame can vary in shape. Proposed geometries include linear, similar to a fence and cylindrical.
In torrents, flexible debris-resisting barrier constitute a sound alternative to check dams for containing debris flows. The main components of flexible debris-resisting barriers are: An interception structure, made up of a principal net with metallic cables, wires, and/or bars and additional layers, usually a finer mesh than the principal.
An anti-submarine net or anti-submarine boom is a boom placed across the mouth of a harbour or a strait for protection against submarines. Net laying ships would be used to place and remove the nets. The US Navy used anti-submarine nets in the Pacific War to protect major US Naval Advance Bases. Some net cutter submarines were used in the war ...
The plastic debris sampled is determined by net mesh size, with similar mesh sizes required to make meaningful comparisons among studies. Floating debris typically is sampled with a neuston or manta trawl net lined with 0.33 mm [0.013 in] mesh. Given the very high level of spatial clumping in marine litter, large numbers of net tows are ...
Debris flows tend to move in a series of pulses, or discrete surges, wherein each pulse or surge has a distinctive head, body and tail. A debris flow in Ladakh, triggered by storms in 2010. It has poor sorting and levees. Steep source catchment is visible in background. Debris-flow deposits are readily recognizable in the field.
Some such probes on the Moon and Mars have left observable craters and debris. This includes landings such as the 1969 Apollo 11 Moon Landing Site. High velocity crashes such as the 1972 Apollo 16 S-IVB rocket, [ 148 ] [ 149 ] 2019 Schiaparelli EDM [ 150 ] [ 151 ] and 2023 Luna 25 [ 152 ] have also made physical changes to the landscape in the ...