RRB Section Controller Syllabus 2026: The Railway Recruitment Board (RRB) examines the Section Controller post. The RRB Section Controller exam is scheduled for 11 and 12 February 2026. The complete ...

Hey, guys! Today we are making diy face masks. One option uses cotton pillowcase fabric as well as coffee filters. These are not a substitute for N-95 facemask, they only offer some protection. But ...

Abstract: Quick response (QR) code is widely used for mobile payment to convey information. However, the traditional QR code has no semantic content and cannot be understood by human. To remedy this, ...