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A stripline circuit uses a flat strip of metal which is sandwiched between two parallel ground planes.The insulating material of the substrate forms a dielectric.The width of the strip, the thickness of the substrate and the relative permittivity of the substrate determine the characteristic impedance of the strip which is a transmission line.
The Optacon (OPtical to TActile CONverter) [1] is an electromechanical device that enables blind people to read printed material that has not been transcribed into Braille.The device consists of two parts: a scanner which the user runs over the material to be read, and a finger pad which translates the words into vibrations felt on the finger tips.
Here Z 0 is the impedance of free space, ε r is the relative permittivity of substrate, w is the width of the strip, h is the thickness ("height") of substrate, and t is the thickness of the strip metallization. This formula is asymptotic to an exact solution in three different cases: w ≫ h, any ε r (parallel plate transmission line),
Vertical, metal furring is applied to the wall to create a channel and receive the siding material. In construction, furring (furring strips) are strips of wood or other material applied to a structure to level or raise the surface, to prevent dampness, to make space for insulation, to level and resurface ceilings or walls, [1] or to increase the beam of a wooden ship.
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Like the floating gate memory cell, a charge trapping cell uses a variable charge between the control gate and the channel to change the threshold voltage of the transistor. The mechanisms to modify this charge are relatively similar between the floating gate and the charge trap, and the read mechanisms are also very similar.
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