Examples from the Web for pupin
Fig. 35 shows the general relation of Pupin loading coils to the capacity of the line.Cyclopedia of Telephony & Telegraphy Vol. 1|Kempster Miller
What Professor Pupin has apparently done is to free the wire from those miscellaneous disturbances known as "induction."The Age of Big Business|Burton J. Hendrick
Analogy in many a path such as that of Professor Pupin has served as a guide to the discoverer and inventor.
These are discussed by Professor Pupin in the paper here mentioned.
Hearing of this case, Professor Pupin induced the gentleman to allow him to attempt a photograph of the hand.