Today’s anti-fall technology has come a long way from ‘I’ve fallen and I can’t get up!’ Here’s how it works. By Joyce Cohen Kathy Doyle fell on the street in Manhattan several times over the years.

Abstract: Wireless sensor networks have been widely used for surveillance in harsh environments. In many such applications, the environmental data are continuously sensed, and data collection by a ...

Ultrasonic energy is widely used to sense the presence of nearby objects and even determine their distance if needed, as well as to measure fluid flow rates in industrial and scientific applications.

Abstract: Low probability of intercept (LPI) and low probability of detection (LPD) strategies face challenges in enhancing the effective detection range while maintaining covertness. In order to ...