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A great problem in speech communication is to identify the shape and characteristics of the vocal apparatus. This task is normally done by using a vocal tract model, based on the calculation of the function, area would be performed. We will show that these models have good performance in experiments. A mathematical model of voice box has been obtained. We suggest a new numerical method without saturation,...
Power transformer plays a vital role in electrical power system. Many of the transformer failures reported are due to insulation failure in windings. The sources of failures are mainly due to impulse overvoltages of different waveshapes and also due to repeated application of impulses. In this paper an attempt has been made to analyze the degradation of transformer insulation for repeated applications...
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