beating vs pulsing

beating

noun
  • The pulsation of the heart. 

  • The action by which someone or something is beaten. 

  • A heavy defeat or setback. 

pulsing

noun
  • The action of something that pulses. 

  • The emission of pulses. 

How often have the words beating and pulsing occurred in a corpus of books? (source: Google Ngram Viewer )