New Delhi: The Delhi govt is mulling a phased conversion of all its double-shift schools into single-shift ones in the coming years. Detailed planning is already underway, sources said. The proposal ...

Abstract: In this letter, a novel integration method of array antenna and polarization conversion metasurface (PCM) is proposed for wideband radar cross section (RCS) reduction. This method allows the ...

Abstract: We demonstrate two types of double-layer slotted waveguide array antennas by diffusion bonding of laminated thin metal plates. Etching metal plates gives high precision at low cost and ...

NASA scientists are facing questions after the Hubble Space Telescope spotted an unexpected feature on the interstellar object 3I/ATLAS, which was observed releasing two distinct jets of material as ...