The magnetic loop antenna is a familiar sight in radio amateur circles as a means to pack a high performance HF antenna into ...

Background: Fewer than half of eligible patients with heart failure (HF) receive all 4 guideline-directed medical therapies (GDMT), despite strong evidence of benefit. Traditional electronic ...

The U.S. Space Force’s Space Systems Command (SSC) collaborated with the U.S. Naval Research Laboratory (NRL) and the Space Development Agency to showcase the Joint Antenna Marketplace transfer of the ...

In patients with HF, the high-dose inactivated influenza vaccine is associated with decreased risk for hospitalization. High-dose inactivated influenza vaccine (HD-IIV) is associated with reduced ...

A team from the Faculty of Physics and the Center for Quantum Optical Technologies at the University of Warsaw has developed a new type of all-optical radio receiver based on the fundamental ...

ABSTRACT: On 25 October 2013, the Sun emitted two significant solar flares. The first solar flare, classified X1.7, peaked at 08:01 UT. The second one, X2.1, peaked at 15:03 UT and was accompanied by ...

National Key Laboratory of Laser Spatial Information, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China ...

ABSTRACT: Precise positioning is available from global navigation satellite systems (GNSS). Unfortunately, satellite signals are weak and a strong interference signal can create a GNSS denial region.

6G is expected to bring data speeds that enable highly integrated and responsive technology in smartphones, homes, cities, and autonomous vehicles, but realizing that goal will require a lot more work ...

6 Best HF Antennas for 2025 to Boost Your Ham Radio Signal Anywhere Links to the best HF Antennas are listed down below: 6. Moonraker Ltd GPA-80 5. DX Engineering XB-5 Hexx Beam HF Antenna 4. Foul ...