We present experimental results of a novel time-varying antenna to broadcast very-low-frequency (VLF, 3–30 kHz) signals. The antenna consists of a 275-m-long dipole interrupted with a high-voltage (HV ...

Binary amplitude shift keying modulation up to 800 bits/s has been successfully demonstrated on a pair of piezoelectric antennas. These results suggest that acoustically driven piezoelectric antennas ...

Takes of Marine Mammals Incidental to Specified Activities; Taking Marine Mammals Incidental to Military Readiness Activities in the Hawaii-California Training and Testing Study Area ...

Among them, SDNN, RMSSD, RRTI, TINN, DC, TP, VLF, LF, and HF are positively correlated with LVSI, while AC is negatively correlated with LVSI. We constructed Model 1 by integrating HRV parameters with ...