Duplantis wins close pole vault gold over Karalis

Greece's Emmanouil Karalis applied the pressure to Mondo Duplantis, but he couldn't match the Swede's best height of 6.25m as ...
Chicago Bears

6 things we learned from Bears GM Ryan Poles

After acquiring eight new players on the first two days of the league year, Bears general manager Ryan Poles spoke to the media Thursday at Halas Hall. Here are six things we learned from that session ...
Yahoo! Sports

An Alarming Stat About Ryan Poles and the Future of the Bears Defense

The Chicago Bears did a lot of good this week, addressing some of the team's biggest needs during NFL free agency. The Bears didn't take a big swing for a star edge rusher like Maxx Crosby or Trey ...
IEEE

A High Sensitivity 20-MHz Endoscopic Transducer With Integrated Miniature Amplifier

Abstract: Endoscopic transducer with small size and high frequency has been widely studied and applied in medical ultrasound imaging. However, attenuation affects high frequency ultrasound waves to a ...
IEEE

Bandwidth Extension Technique of Piezoelectric Micromachined Ultrasonic Transducers for Air Coupled Applications

Abstract: This paper presents a stiffness hardening-based excitation method for a PZT-based Piezoelectric Micromachined Ultrasonic Transducers (PMUTs). And its large bandwidth performance was firstly ...