Background Oscillatory positive expiratory pressure (OPEP) devices are intended to facilitate sputum clearance and reduce cough, but there is limited evidence for their effectiveness in COPD, or to ...

Considering the hypothesized functionality of peptides in early chemical evolution and their central role in current bio-nanotechnology, we now reveal a peptide-based oscillator. Oscillatory behavior ...

This new timing portfolio delivers sub-20-fs jitter, 2-GHz performance, and rugged thermal stability, replacing analog ...

Abstract: A simple voltage controlled oscillator circuit using capacitors, all of which are grounded, is presented. The circuit is thus attractive from the point of view of monolithic or hybrid IC ...

Abstract: A novel scheme to realize widely tunable optical parametric oscillator (OPO) based on an x-cut KTP crystal is demonstrated. The tuning range from 1572.5 nm to 1697 nm was enabled by a 1:1 ...