CBSE Class 12 Mathematics exam paper featured a QR code that reportedly redirected users to Rick Astley's Never Gonna Give You Up video, sparking social media buzz.

Cloudy with likely rain-snow mix. Chance of precipitation 100%. High temperature around 37F. Dew point will be around 34F with an average humidity of 92%. Winds will be 6 mph from the SE.

Abstract: This study addresses the design of two robust controller types for automatic voltage regulators (AVRs): $\text {H}_{\infty}$ and sliding mode controllers (SMC). Two AVR transfer function ...

Abstract: In this letter, a Ka-band filter-antenna based on gap waveguide (GWG) is proposed. First, a patch of the filter-antenna with a flat in-band gain and good out-of-band rejection, is analyzed ...