This letter is devoted to applying the higher order finite-difference approximations to the tropospheric radio-wave propagation problem. It is proposed to use the fourth-order approximation (Numerov ...

BOSTON, June 11, 2025 /PRNewswire/ -- VectorWave Corporation today announced $2.5M in seed funding led by prominent dual use investor, J2 Ventures (www.j2vp.com) and Coalition Ventures (www ...

Expressions for the ideal free-space backprojected image of an object with known transition matrix (T-matrix) are derived for scalar and vector electromagnetic waves in bistatic and monostatic ...

Astronomers have detected a rare space object that emits powerful bursts of energy in both radio and X-ray wavelengths every 44 minutes. The object, known as ASKAP J1832-0911, lies around 15,000 ...

The highly efficient electromagnetic (EM) wave absorbing metal-free and carbon-rich ceramics derived from hyperbranched polycarbosilazanes are presented in this contribution. The novel metal-free ...