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An oscillator with quadratic nonlinearity and delayed feedback is studied. It has two equilibrium points, each one exhibiting a 1:2 strong resonant double Hopf bifurcation. For each case, the number of existing periodic solutions in a neighborhood of the singularity is determined analytically by using a frequency-domain method. Moreover, it is found that the two equilibrium points interact through...
The presented results are obtained during the first steps taken in order to develop a setup and measurement procedures which allow to compare properties of diverse kinds of silicon photomultiplier. The response to low-intensity light was studied for silicon photomultipliers produced by MEPhI/PULSAR (Russia), CPTA (Russia), Hamamatsu (Japan), ITC-irst (Italy) and SensL (Ireland).
Due to the increasing of reliability, safety and economy of industrial processes, fault diagnosis techniques in electric machines have taken great importance in the last years in the field of investigation, among the fault approached they highlight the electric faults such as the short and open circuit stator coil. With the employment of power electronics for the speed control of induction motors,...
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