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A halo antenna, or halo, is a center-fed 1 / 2 wavelength dipole antenna, which has been bent into a circle, with a break directly opposite the feed point. The dipole's ends are close, but do not touch, and the ends on either side of the gap may be flared out to form a larger air gap capacitor , whose spacing is used to fine-adjust the ...
The fence is usually 1.5–2 metres tall. The fencing can also incorporate specially made stiles and gates. The fence requires an abundance of wood, which was never a problem in Scandinavia, as the trees generally came from the owners' own forests in the process of thinning them out. The term ″roundpole fence" is somewhat misleading, as the ...
An example of detector applied on a perimeter fence is the mems accelerometer. The advantages of having a perimeter intrusion detection system are various, and of great importance, for example we obtain a remarkable capacity to analyse the information produced by each sensor, without the need to increase the resources at the centre.
Electric gates alone, however solid and imposing they may be, cannot guarantee a completely secure environment electric locks, are often needed to boost the locking effectiveness of the gate motors. Electric gates are recommended to be used in combination with other security features to install a full security system.
Simple split-rail fence Log fence with double posts (photo taken in 1938). A split-rail fence, log fence, or buck-and-rail fence (also historically known as a Virginia, zigzag, worm, snake or snake-rail fence due to its meandering layout) is a type of fence constructed in the United States and Canada, and is made out of timber logs, usually split lengthwise into rails and typically used for ...
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The technique of gripping a weapon's handle closer to the pommel in order to extend the fencer's reach by a few inches. Posting is a trade-off: the fencer loses a little control over their blade work in return for the greater reach.
A Melitta drip coffeemaker displaying a weather forecast on an electronic visual display powered by SPOT. The Smart Personal Objects Technology (SPOT) is a discontinued initiative by Microsoft to create intelligent and personal home appliances, consumer electronics, and other objects through new hardware capabilities and software features.