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In this paper, solutions of the equations which describe sound propagation in nonuniform ducts are computed with a finite element approach. A least squares approach is considered and compared to a Galerkin approach. The least squares problem is solved using an iterative method and compared with...
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In this paper, transmission line theory is used to model the current waveform in a lightning flash to ground. By adjusting the resistance, inductance, capacitance, and the initial voltage distribution within the channel all within reasonable limits, we are able to construct waveforms with rise...
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