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Upper and Lower Jaw Functional Expanders. This is a comprehensive list of functional appliances that are used in the field of orthodontics.The functional appliances can be divided into fixed and removable.
A brace on a square-rigged ship is a rope (line) used to rotate a yard around the mast, to allow the ship to sail at different angles to the wind. Braces are always used in pairs, one at each end of a yard ( yardarm ), [ 1 ] termed port brace and starboard brace of a given yard or sail (e.g., the starboard main-brace is the brace fixed to the ...
To assume a brace position or crash position is an instruction that can be given to prepare for a crash, such as on an aircraft; the instruction to "Brace for impact!" or "Brace! Brace!" is often given if the aircraft must make an emergency landing on land or water. There are many different ways to adopt the brace position, with many countries ...
The buffer plate sits on a steel tube with a larger diameter, which is therefore more resistant to bending. The volute spring system initially still used for the plunger buffers had the disadvantage that the energy put into compression was completely released again, so that the vehicles were pushed apart again after the impact.
A buckling-restrained brace (BRB) is a structural brace in a building, designed to allow the building to withstand cyclical lateral loadings, typically earthquake-induced loading. It consists of a slender steel core, a concrete casing designed to continuously support the core and prevent buckling under axial compression , and an interface ...
The Milwaukee brace, also known as a cervico-thoraco-lumbo-sacral orthosis or CTLSO, is a back brace most often used in the treatment of spinal curvatures (such as scoliosis or kyphosis) in children but also, more rarely, in adults to prevent collapse of the spine and associated pain and deformity. It is a full-torso brace that extends from the ...
The earliest carpenter's braces equipped with a U-shaped grip, that is with a compound crank, appeared between 1420 and 1430 in Flanders. [1] The brace has other names. Bit brace is the most often used name, but Carpenter's brace, ratchet brace (if a ratchet mechanism is incorporated into the design), and swing brace are also commonly used.
For a current buffer, if the current is transferred unchanged (the current gain β i is 1), the amplifier is again a unity gain buffer; this time known as a current follower because the output current follows or tracks the input current. As an example, consider a Norton source (current I A, parallel resistance R A) driving a resistor load R L.