Results 101 to 110 of about 243,252 (196)

A multi-ring UHF near-field RFID reader antenna

open access: yes物联网学报
A near-field antenna for ultra-high frequency radio frequency identification (RFID) reader with a multi-ring structure and uniform magnetic field was designed.
CHEN Rong, XIE Weihua, YUAN Jiade
doaj  

Parainguinal or Spigelian hernia: a clinically important distinction. [PDF]

open access: yesHernia
Yu S   +6 more
europepmc   +1 more source

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