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In laser beam welding coalescence is produced by the heat obtained from the application of a concentrated coherent light beam impining upon the surface to be joined .
It consists of a man-made cylindrical ruby crystal, around the outside of the
crystal is placed flash tube containing inert gas xenon and the capacitor bank.
When subjected to electrical discharge from the capacitors, xenon transforms a high proportion of the electrical energy into white light. As the ruby is exposed to the intense light flashes, the chromium atom of the crystal are excited and pumped to a high energy level. The effect is enhanced because the parallel ends of ruby rod are mirrored so that the red light that is produced reflects back and forth along the length of the crystal. Finally the total energy bursts over a threshold and escapes from the small hole in the mirror at one end of the ruby crystal, as the laser beam.
Constant speeding propeller: The definition of a Constant Speeding propeller is 'A propeller, the pitch setting of which varies automatically to maintain a preselected constant
Torque indication: Turboprop and turboshaft engines do not provide significant thrust through their jet pipes, so EPR would not be of any use in determining the thrust being pr
Propeller Control: There is no separate propeller control selector for this engine / propeller combination. Instead of a separate propeller control lever, the governor is desi
This is an individual task in the form of an essay of between 900 and 1300 words. Illustrative material such as pictures may be included in addition to the text.
you are a young entrepreneur & you have to compete with already established firms in the industry by taking help from marginal costing tools with adequate examples. you have to giv
advantage of spc
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Working of bootstrap sweep circuit?
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Electron Microscope The development of the electron microscope was based on theoretical work done by Louis De Broglie, who found that wavelength is inversely proportional to mo
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