atlases automaticcontrol chorionicgonadotropin chorionicgonadotropins computersimulation congresses controltheory developmentalbiology eigenfunctions electricdriving electricmachinery electricmotors endocrineaspects fertilizationinvitro humanreproduction hydroelectricgenerators inductionelectricmachinery luteinizinghormone ovaries ovulation ovulationinduction pharmacology physiology rhesusmonkey rotaryconverters smallpowerproductionfacilities synchronous synchronouselectricmotors testing therapeuticuse variablespeed variablespeedelectricdriving water-power windpower windturbines wp540o9541991 wp540t8281994