Open Heart

Severe aortic stenosis detection using seismocardiography

Background Patients with severe aortic stenosis (AS) are at high risk of mortality, regardless of symptom status. Despite ...
IEEE

A Quasi-Passive 78-dB DR 14.9- μW Noise-Shaping SAR A/D Converter for Audio Activity Detection Applications

Abstract: In this brief, a Noise-Shaping Successive Approximation Register (NS-SAR) Analog-to-Digital Converter (ADC) optimized for low-power Audio Activity Detection (AAD) is presented. Based on a ...
IEEE

157 -nm High-gain, Low-noise S-, C-, and Extend L-band Ampli-fier Using Cascaded Discrete Raman and Bismuth-doped Fiber Amplification

Abstract: We report a casceded compact hybrid discrete Raman amplifier based on a bismuth-doped fiber and a $2\times 1$-km photonic crystal fiber, which enables broadband amplification in the 157-nm S ...