621.313 2 time functions 2 turbogenerator 2 alternating magnetic field on the rotor surface 1 coordinate function 1 electromagnetic torque ripple 1 electromotive force 1 harmonic analysis 1 image recognition 1 information security 1 keyboard handwriting 1 load mode 1 logic-time function 1 magnetic field 1 magnetic flux linkage 1 magnetic induction 1 neural network 1 numerical field calculation 1 numerical-field method 1 shortening 1 stator winding 1 the derivative of a variable 1 time function 1 user authentication 1 временная функция 1 временные функции 1 гармонический анализ 1 захист інформації 1 защита информации 1 идентификация пользователя 1