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There are about 111 decoys still in operation in the Netherlands with one of the oldest dating from the 13th century. [22] [23] The number of ducks still caught for consumption is small. Larger numbers of ducks are hunted by shooting. The decoys are mostly used for study purposes including ringing, but also for studying the avian flu. [24]
A cast-in-place anchor bolt. The simplest – and strongest – form of anchor bolt is cast-in-place, with its embedded end consisting of a standard hexagonal head bolt and washer, 90-bend, or some sort of forged or welded flange (see also stud welding). The last are used in concrete-steel composite structures as shear connectors. [6]
A duck decoy (or decoy duck) is a man-made object resembling a duck. Duck decoys are typically used in waterfowl hunting to attract real ducks, but they are also used as collectible art pieces. [1] Duck decoys were historically carved from wood, often Atlantic white cedar wood on the east coast of the United States, [2] or cork.
anchor bolt: A special type of bolt that is set into concrete, with screw threads protruding above the concrete surface to accept a nut. breakaway bolt: A breakaway bolt is a bolt with a hollow threaded shank, which is designed to break away upon impact. Typically used to fasten fire hydrants, so they will break away when hit by a car. Also ...
Anchor channels, invented by Anders Jordahl in 1913, are steel channels cast flush in reinforced concrete elements to allow the installation of channel bolts for the fastening of components. Anchor channels consist of steel C-shaped channels and anchors (mostly headed studs ) which are connected to the channel by welding or riveting/forging.
While wild birds are still safe to eat, SCDNR is warning that the highly contagious Eurasian H5 avian influenza (HPAI) virus poses a serious threat to South Carolina’s poultry industry.
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